On Fri,  7 Jun 2024 23:00:04 +1200
Ryan Walklin <r...@testtoast.com> wrote:

Hi Ryan,

> The DE33 is a newer version of the Allwinner Display Engine IP block,
> found in the H616, H618, H700 and T507 SoCs. DE2 and DE3 are already
> supported by the mainline driver.
> 
> Notable features (from the H616 datasheet and implemented):
> - 4096 x 2048 (4K) output support
> - AFBC ARM Frame Buffer Compression support
> - YUV420 input support
> 
> Extend the driver to support the DE33.

many thanks again for taking up the task and sending this!
From a purely generic look at this patch, it seems to be quite large and
hard to review.

As Conor already mentioned, the clock driver in here should
definitely be a separate patch, this might go through a separate tree,
even.
From the looks of it, this patch also mixes refactoring with new
features, which is often not a good idea.
So I suggest you try to split up the changes, to *prepare* for the new
SoC first, and then add the H616 bits in a separate step.
One way would be for instance to change is_de3 to de_type first, but
just for the existing DE2 and DE3 cases. This should be easy to review,
since it's more a mechanical refactoring, with identical functionality.
Then plugging in the DE33 support separately makes it much clearer
what's going on, and helps understanding and bisecting.
I have only glanced over it, but it looks like there might be more
refactoring opportunities. Multiple smaller patches would really be
better here, from a review and from a bisecting perspective.
I would expect the final H616 patch to just contain patterns like:

-       }
+       } else if (de_type == sun8i_mixer_de33) {
+               ... new code ...
+       }

Everything should have been done in patches before.

I hope this makes sense, let me know if you need any help with that, I
just really glanced over the patch quickly.

Cheers,
Andre
 
> Signed-off-by: Jernej Skrabec <jernej.skra...@gmail.com>
> Co-developed-by: Ryan Walklin <r...@testtoast.com>
> Signed-off-by: Ryan Walklin <r...@testtoast.com>
> ---
>  drivers/clk/sunxi-ng/Makefile           |   2 +-
>  drivers/clk/sunxi-ng/sun8i-de33.c       | 185 +++++++++++++++++++++
>  drivers/clk/sunxi-ng/sun8i-de33.h       |  19 +++
>  drivers/gpu/drm/sun4i/sun4i_tcon.c      |   4 +
>  drivers/gpu/drm/sun4i/sun4i_tcon.h      |   1 +
>  drivers/gpu/drm/sun4i/sun50i_afbc.c     |  16 +-
>  drivers/gpu/drm/sun4i/sun50i_fmt.c      |  75 ++++++---
>  drivers/gpu/drm/sun4i/sun50i_fmt.h      |  21 ++-
>  drivers/gpu/drm/sun4i/sun8i_csc.c       |  98 ++++++++++-
>  drivers/gpu/drm/sun4i/sun8i_csc.h       |   3 +
>  drivers/gpu/drm/sun4i/sun8i_mixer.c     | 209 +++++++++++++++++++-----
>  drivers/gpu/drm/sun4i/sun8i_mixer.h     |  31 +++-
>  drivers/gpu/drm/sun4i/sun8i_ui_layer.c  |  36 ++--
>  drivers/gpu/drm/sun4i/sun8i_ui_scaler.c |   2 +-
>  drivers/gpu/drm/sun4i/sun8i_vi_layer.c  |  33 ++--
>  drivers/gpu/drm/sun4i/sun8i_vi_scaler.c | 115 ++++++++-----
>  drivers/gpu/drm/sun4i/sun8i_vi_scaler.h |   3 +-
>  17 files changed, 703 insertions(+), 150 deletions(-)
>  create mode 100644 drivers/clk/sunxi-ng/sun8i-de33.c
>  create mode 100644 drivers/clk/sunxi-ng/sun8i-de33.h
> 
> diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile
> index 6b3ae2b620db6..fce8a1ce61137 100644
> --- a/drivers/clk/sunxi-ng/Makefile
> +++ b/drivers/clk/sunxi-ng/Makefile
> @@ -68,7 +68,7 @@ sun8i-a83t-ccu-y            += ccu-sun8i-a83t.o
>  sun8i-h3-ccu-y                       += ccu-sun8i-h3.o
>  sun8i-r40-ccu-y                      += ccu-sun8i-r40.o
>  sun8i-v3s-ccu-y                      += ccu-sun8i-v3s.o
> -sun8i-de2-ccu-y                      += ccu-sun8i-de2.o
> +sun8i-de2-ccu-y                      += ccu-sun8i-de2.o sun8i-de33.o
>  sun8i-r-ccu-y                        += ccu-sun8i-r.o
>  sun9i-a80-ccu-y                      += ccu-sun9i-a80.o
>  sun9i-a80-de-ccu-y           += ccu-sun9i-a80-de.o
> diff --git a/drivers/clk/sunxi-ng/sun8i-de33.c 
> b/drivers/clk/sunxi-ng/sun8i-de33.c
> new file mode 100644
> index 0000000000000..4287dafbc26e4
> --- /dev/null
> +++ b/drivers/clk/sunxi-ng/sun8i-de33.c
> @@ -0,0 +1,185 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2017 Icenowy Zheng <icen...@aosc.io>
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/clk-provider.h>
> +#include <linux/of_address.h>
> +#include <linux/of_platform.h>
> +#include <linux/platform_device.h>
> +#include <linux/reset.h>
> +
> +#include "ccu_common.h"
> +#include "ccu_div.h"
> +#include "ccu_gate.h"
> +#include "ccu_reset.h"
> +
> +#include "sun8i-de33.h"
> +
> +static SUNXI_CCU_GATE(bus_mixer0_clk,        "bus-mixer0",   "bus-de",
> +                   0x04, BIT(0), 0);
> +static SUNXI_CCU_GATE(bus_mixer1_clk,        "bus-mixer1",   "bus-de",
> +                   0x04, BIT(1), 0);
> +static SUNXI_CCU_GATE(bus_wb_clk,    "bus-wb",       "bus-de",
> +                   0x04, BIT(2), 0);
> +
> +static SUNXI_CCU_GATE(mixer0_clk,    "mixer0",       "mixer0-div",
> +                   0x00, BIT(0), CLK_SET_RATE_PARENT);
> +static SUNXI_CCU_GATE(mixer1_clk,    "mixer1",       "mixer1-div",
> +                   0x00, BIT(1), CLK_SET_RATE_PARENT);
> +static SUNXI_CCU_GATE(wb_clk,                "wb",           "wb-div",
> +                   0x00, BIT(2), CLK_SET_RATE_PARENT);
> +
> +static SUNXI_CCU_M(mixer0_div_clk, "mixer0-div", "de", 0x0c, 0, 4,
> +                CLK_SET_RATE_PARENT);
> +static SUNXI_CCU_M(mixer1_div_clk, "mixer1-div", "de", 0x0c, 4, 4,
> +                CLK_SET_RATE_PARENT);
> +static SUNXI_CCU_M(wb_div_clk, "wb-div", "de", 0x0c, 8, 4,
> +                CLK_SET_RATE_PARENT);
> +
> +static struct ccu_common *sun50i_h616_de33_clks[] = {
> +     &mixer0_clk.common,
> +     &mixer1_clk.common,
> +     &wb_clk.common,
> +
> +     &bus_mixer0_clk.common,
> +     &bus_mixer1_clk.common,
> +     &bus_wb_clk.common,
> +
> +     &mixer0_div_clk.common,
> +     &mixer1_div_clk.common,
> +     &wb_div_clk.common,
> +};
> +
> +static struct clk_hw_onecell_data sun50i_h616_de33_hw_clks = {
> +     .hws    = {
> +             [CLK_MIXER0]            = &mixer0_clk.common.hw,
> +             [CLK_MIXER1]            = &mixer1_clk.common.hw,
> +             [CLK_WB]                = &wb_clk.common.hw,
> +
> +             [CLK_BUS_MIXER0]        = &bus_mixer0_clk.common.hw,
> +             [CLK_BUS_MIXER1]        = &bus_mixer1_clk.common.hw,
> +             [CLK_BUS_WB]            = &bus_wb_clk.common.hw,
> +
> +             [CLK_MIXER0_DIV]        = &mixer0_div_clk.common.hw,
> +             [CLK_MIXER1_DIV]        = &mixer1_div_clk.common.hw,
> +             [CLK_WB_DIV]            = &wb_div_clk.common.hw,
> +     },
> +     .num    = CLK_NUMBER,
> +};
> +
> +static struct ccu_reset_map sun50i_h616_de33_resets[] = {
> +     [RST_MIXER0]    = { 0x08, BIT(0) },
> +     [RST_MIXER1]    = { 0x08, BIT(1) },
> +     [RST_WB]        = { 0x08, BIT(2) },
> +};
> +
> +static const struct sunxi_ccu_desc sun50i_h616_de33_clk_desc = {
> +     .ccu_clks       = sun50i_h616_de33_clks,
> +     .num_ccu_clks   = ARRAY_SIZE(sun50i_h616_de33_clks),
> +
> +     .hw_clks        = &sun50i_h616_de33_hw_clks,
> +
> +     .resets         = sun50i_h616_de33_resets,
> +     .num_resets     = ARRAY_SIZE(sun50i_h616_de33_resets),
> +};
> +
> +static int sunxi_de33_clk_probe(struct platform_device *pdev)
> +{
> +     struct resource *res;
> +     struct clk *bus_clk, *mod_clk;
> +     struct reset_control *rstc;
> +     void __iomem *reg;
> +     const struct sunxi_ccu_desc *ccu_desc;
> +     int ret;
> +
> +     ccu_desc = of_device_get_match_data(&pdev->dev);
> +     if (!ccu_desc)
> +             return -EINVAL;
> +
> +     res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +     reg = devm_ioremap_resource(&pdev->dev, res);
> +     if (IS_ERR(reg))
> +             return PTR_ERR(reg);
> +
> +     bus_clk = devm_clk_get(&pdev->dev, "bus");
> +     if (IS_ERR(bus_clk)) {
> +             ret = PTR_ERR(bus_clk);
> +             if (ret != -EPROBE_DEFER)
> +                     dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret);
> +             return ret;
> +     }
> +
> +     mod_clk = devm_clk_get(&pdev->dev, "mod");
> +     if (IS_ERR(mod_clk)) {
> +             ret = PTR_ERR(mod_clk);
> +             if (ret != -EPROBE_DEFER)
> +                     dev_err(&pdev->dev, "Couldn't get mod clk: %d\n", ret);
> +             return ret;
> +     }
> +
> +     rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
> +     if (IS_ERR(rstc)) {
> +             ret = PTR_ERR(rstc);
> +             if (ret != -EPROBE_DEFER)
> +                     dev_err(&pdev->dev,
> +                             "Couldn't get reset control: %d\n", ret);
> +             return ret;
> +     }
> +
> +     /* The clocks need to be enabled for us to access the registers */
> +     ret = clk_prepare_enable(bus_clk);
> +     if (ret) {
> +             dev_err(&pdev->dev, "Couldn't enable bus clk: %d\n", ret);
> +             return ret;
> +     }
> +
> +     ret = clk_prepare_enable(mod_clk);
> +     if (ret) {
> +             dev_err(&pdev->dev, "Couldn't enable mod clk: %d\n", ret);
> +             goto err_disable_bus_clk;
> +     }
> +
> +     /* The reset control needs to be asserted for the controls to work */
> +     ret = reset_control_deassert(rstc);
> +     if (ret) {
> +             dev_err(&pdev->dev,
> +                     "Couldn't deassert reset control: %d\n", ret);
> +             goto err_disable_mod_clk;
> +     }
> +
> +     writel(0, reg + 0x24);
> +     writel(0x0000A980, reg + 0x28);
> +
> +     ret = devm_sunxi_ccu_probe(&pdev->dev, reg, ccu_desc);
> +     if (ret)
> +             goto err_assert_reset;
> +
> +     return 0;
> +
> +err_assert_reset:
> +     reset_control_assert(rstc);
> +err_disable_mod_clk:
> +     clk_disable_unprepare(mod_clk);
> +err_disable_bus_clk:
> +     clk_disable_unprepare(bus_clk);
> +     return ret;
> +}
> +
> +static const struct of_device_id sunxi_de33_clk_ids[] = {
> +     {
> +             .compatible = "allwinner,sun50i-h616-de33-clk",
> +             .data = &sun50i_h616_de33_clk_desc,
> +     },
> +     { }
> +};
> +
> +static struct platform_driver sunxi_de33_clk_driver = {
> +     .probe  = sunxi_de33_clk_probe,
> +     .driver = {
> +             .name   = "sunxi-de33-clks",
> +             .of_match_table = sunxi_de33_clk_ids,
> +     },
> +};
> +builtin_platform_driver(sunxi_de33_clk_driver);
> diff --git a/drivers/clk/sunxi-ng/sun8i-de33.h 
> b/drivers/clk/sunxi-ng/sun8i-de33.h
> new file mode 100644
> index 0000000000000..83cbef5a3f76f
> --- /dev/null
> +++ b/drivers/clk/sunxi-ng/sun8i-de33.h
> @@ -0,0 +1,19 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
> +/*
> + * Copyright 2016 Icenowy Zheng <icen...@aosc.io>
> + */
> +
> +#ifndef _CCU_SUN8I_DE2_H_
> +#define _CCU_SUN8I_DE2_H_
> +
> +#include <dt-bindings/clock/sun8i-de2.h>
> +#include <dt-bindings/reset/sun8i-de2.h>
> +
> +/* Intermediary clock dividers are not exported */
> +#define CLK_MIXER0_DIV       3
> +#define CLK_MIXER1_DIV       4
> +#define CLK_WB_DIV   5
> +
> +#define CLK_NUMBER   (CLK_WB + 1)
> +
> +#endif /* _CCU_SUN8I_DE2_H_ */
> diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c 
> b/drivers/gpu/drm/sun4i/sun4i_tcon.c
> index e39926e9f0b5d..12b73907788fa 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
> @@ -1277,6 +1277,10 @@ static int sun4i_tcon_bind(struct device *dev, struct 
> device *master,
>                       goto err_free_dclk;
>       }
>  
> +     regmap_update_bits(tcon->regs, SUN4I_TCON_GCTL_REG,
> +                        SUN4I_TCON_GCTL_PAD_SEL,
> +                        SUN4I_TCON_GCTL_PAD_SEL);
> +
>       if (tcon->quirks->needs_de_be_mux) {
>               /*
>                * We assume there is no dynamic muxing of backends
> diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.h 
> b/drivers/gpu/drm/sun4i/sun4i_tcon.h
> index fa23aa23fe4a4..d56c9764ff4c6 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_tcon.h
> +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.h
> @@ -19,6 +19,7 @@
>  
>  #define SUN4I_TCON_GCTL_REG                  0x0
>  #define SUN4I_TCON_GCTL_TCON_ENABLE                  BIT(31)
> +#define SUN4I_TCON_GCTL_PAD_SEL                              BIT(1)
>  #define SUN4I_TCON_GCTL_IOMAP_MASK                   BIT(0)
>  #define SUN4I_TCON_GCTL_IOMAP_TCON1                  (1 << 0)
>  #define SUN4I_TCON_GCTL_IOMAP_TCON0                  (0 << 0)
> diff --git a/drivers/gpu/drm/sun4i/sun50i_afbc.c 
> b/drivers/gpu/drm/sun4i/sun50i_afbc.c
> index 27a771608eef8..b55e1c5533714 100644
> --- a/drivers/gpu/drm/sun4i/sun50i_afbc.c
> +++ b/drivers/gpu/drm/sun4i/sun50i_afbc.c
> @@ -13,6 +13,16 @@
>  #include "sun50i_afbc.h"
>  #include "sun8i_mixer.h"
>  
> +static u32 sun50i_afbc_get_base(struct sun8i_mixer *mixer, unsigned int 
> channel)
> +{
> +     u32 base = sun8i_channel_base(mixer, channel);
> +
> +     if (mixer->cfg->de_type == sun8i_mixer_de3)
> +             return base + SUN50I_AFBC_CH_OFFSET;
> +
> +     return base + 0x4000;
> +}
> +
>  bool sun50i_afbc_format_mod_supported(struct sun8i_mixer *mixer,
>                                     u32 format, u64 modifier)
>  {
> @@ -29,7 +39,7 @@ bool sun50i_afbc_format_mod_supported(struct sun8i_mixer 
> *mixer,
>               return true;
>       }
>  
> -     if (!mixer->cfg->is_de3)
> +     if (mixer->cfg->de_type == sun8i_mixer_de2)
>               return false;
>  
>       mode = AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
> @@ -69,7 +79,7 @@ void sun50i_afbc_atomic_update(struct sun8i_mixer *mixer, 
> unsigned int channel,
>       struct regmap *regs;
>       dma_addr_t dma_addr;
>  
> -     base = sun8i_channel_base(mixer, channel) + SUN50I_AFBC_CH_OFFSET;
> +     base = sun50i_afbc_get_base(mixer, channel);
>       regs = mixer->engine.regs;
>  
>       src_w = drm_rect_width(&state->src) >> 16;
> @@ -234,7 +244,7 @@ void sun50i_afbc_atomic_update(struct sun8i_mixer *mixer, 
> unsigned int channel,
>  
>  void sun50i_afbc_disable(struct sun8i_mixer *mixer, unsigned int channel)
>  {
> -     u32 base = sun8i_channel_base(mixer, channel) + SUN50I_AFBC_CH_OFFSET;
> +     u32 base = sun50i_afbc_get_base(mixer, channel);
>  
>       regmap_write(mixer->engine.regs, SUN50I_FBD_CTL(base), 0);
>  }
> diff --git a/drivers/gpu/drm/sun4i/sun50i_fmt.c 
> b/drivers/gpu/drm/sun4i/sun50i_fmt.c
> index 18a8d5032ddce..39682d4e6d208 100644
> --- a/drivers/gpu/drm/sun4i/sun50i_fmt.c
> +++ b/drivers/gpu/drm/sun4i/sun50i_fmt.c
> @@ -34,41 +34,66 @@ static u32 sun50i_fmt_get_colorspace(u32 format)
>       }
>  }
>  
> +static void sun50i_fmt_de3_limits(u32 *limits, u32 colorspace, bool bit10)
> +{
> +     if (colorspace != SUN50I_FMT_CS_YUV444RGB) {
> +             limits[0] = SUN50I_FMT_LIMIT(64, 940);
> +             limits[1] = SUN50I_FMT_LIMIT(64, 960);
> +             limits[2] = SUN50I_FMT_LIMIT(64, 960);
> +     } else if (bit10) {
> +             limits[0] = SUN50I_FMT_LIMIT(0, 1023);
> +             limits[1] = SUN50I_FMT_LIMIT(0, 1023);
> +             limits[2] = SUN50I_FMT_LIMIT(0, 1023);
> +     } else {
> +             limits[0] = SUN50I_FMT_LIMIT(0, 1021);
> +             limits[1] = SUN50I_FMT_LIMIT(0, 1021);
> +             limits[2] = SUN50I_FMT_LIMIT(0, 1021);
> +     }
> +}
> +
> +static void sun50i_fmt_de33_limits(u32 *limits, u32 colorspace)
> +{
> +     if (colorspace == SUN50I_FMT_CS_YUV444RGB) {
> +             limits[0] = SUN50I_FMT_LIMIT(0, 4095);
> +             limits[1] = SUN50I_FMT_LIMIT(0, 4095);
> +             limits[2] = SUN50I_FMT_LIMIT(0, 4095);
> +     } else {
> +             limits[0] = SUN50I_FMT_LIMIT(256, 3840);
> +             limits[1] = SUN50I_FMT_LIMIT(256, 3840);
> +             limits[2] = SUN50I_FMT_LIMIT(256, 3840);
> +     }
> +}
> +
>  void sun50i_fmt_setup(struct sun8i_mixer *mixer, u16 width,
>                     u16 height, u32 format)
>  {
> -     u32 colorspace, limit[3];
> +     u32 colorspace, limit[3], base;
> +     struct regmap *regs;
>       bool bit10;
>  
>       colorspace = sun50i_fmt_get_colorspace(format);
>       bit10 = sun50i_fmt_is_10bit(format);
> +     base = mixer->cfg->de_type == sun8i_mixer_de3 ?
> +             SUN50I_FMT_DE3 : SUN50I_FMT_DE33;
> +     regs = sun8i_blender_regmap(mixer);
>  
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_CTRL, 0);
> +     if (mixer->cfg->de_type == sun8i_mixer_de3)
> +             sun50i_fmt_de3_limits(limit, colorspace, bit10);
> +     else
> +             sun50i_fmt_de33_limits(limit, colorspace);
>  
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_SIZE,
> -                  SUN8I_MIXER_SIZE(width, height));
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_SWAP, 0);
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_DEPTH, bit10);
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_FORMAT, colorspace);
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_COEF, 0);
> +     regmap_write(regs, SUN50I_FMT_CTRL(base), 0);
>  
> -     if (colorspace != SUN50I_FMT_CS_YUV444RGB) {
> -             limit[0] = SUN50I_FMT_LIMIT(64, 940);
> -             limit[1] = SUN50I_FMT_LIMIT(64, 960);
> -             limit[2] = SUN50I_FMT_LIMIT(64, 960);
> -     } else if (bit10) {
> -             limit[0] = SUN50I_FMT_LIMIT(0, 1023);
> -             limit[1] = SUN50I_FMT_LIMIT(0, 1023);
> -             limit[2] = SUN50I_FMT_LIMIT(0, 1023);
> -     } else {
> -             limit[0] = SUN50I_FMT_LIMIT(0, 1021);
> -             limit[1] = SUN50I_FMT_LIMIT(0, 1021);
> -             limit[2] = SUN50I_FMT_LIMIT(0, 1021);
> -     }
> +     regmap_write(regs, SUN50I_FMT_SIZE(base),
> +                  SUN8I_MIXER_SIZE(width, height));
> +     regmap_write(regs, SUN50I_FMT_SWAP(base), 0);
> +     regmap_write(regs, SUN50I_FMT_DEPTH(base), bit10);
> +     regmap_write(regs, SUN50I_FMT_FORMAT(base), colorspace);
> +     regmap_write(regs, SUN50I_FMT_COEF(base), 0);
>  
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_LMT_Y, limit[0]);
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_LMT_C0, limit[1]);
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_LMT_C1, limit[2]);
> +     regmap_write(regs, SUN50I_FMT_LMT_Y(base), limit[0]);
> +     regmap_write(regs, SUN50I_FMT_LMT_C0(base), limit[1]);
> +     regmap_write(regs, SUN50I_FMT_LMT_C1(base), limit[2]);
>  
> -     regmap_write(mixer->engine.regs, SUN50I_FMT_CTRL, 1);
> +     regmap_write(regs, SUN50I_FMT_CTRL(base), 1);
>  }
> diff --git a/drivers/gpu/drm/sun4i/sun50i_fmt.h 
> b/drivers/gpu/drm/sun4i/sun50i_fmt.h
> index 0fa1d2d22e592..3e60d5c788b39 100644
> --- a/drivers/gpu/drm/sun4i/sun50i_fmt.h
> +++ b/drivers/gpu/drm/sun4i/sun50i_fmt.h
> @@ -8,15 +8,18 @@
>  
>  #include "sun8i_mixer.h"
>  
> -#define SUN50I_FMT_CTRL   0xa8000
> -#define SUN50I_FMT_SIZE   0xa8004
> -#define SUN50I_FMT_SWAP   0xa8008
> -#define SUN50I_FMT_DEPTH  0xa800c
> -#define SUN50I_FMT_FORMAT 0xa8010
> -#define SUN50I_FMT_COEF   0xa8014
> -#define SUN50I_FMT_LMT_Y  0xa8020
> -#define SUN50I_FMT_LMT_C0 0xa8024
> -#define SUN50I_FMT_LMT_C1 0xa8028
> +#define SUN50I_FMT_DE3 0xa8000
> +#define SUN50I_FMT_DE33 0x5000
> +
> +#define SUN50I_FMT_CTRL(base)   ((base) + 0x00)
> +#define SUN50I_FMT_SIZE(base)   ((base) + 0x04)
> +#define SUN50I_FMT_SWAP(base)   ((base) + 0x08)
> +#define SUN50I_FMT_DEPTH(base)  ((base) + 0x0c)
> +#define SUN50I_FMT_FORMAT(base) ((base) + 0x10)
> +#define SUN50I_FMT_COEF(base)   ((base) + 0x14)
> +#define SUN50I_FMT_LMT_Y(base)  ((base) + 0x20)
> +#define SUN50I_FMT_LMT_C0(base) ((base) + 0x24)
> +#define SUN50I_FMT_LMT_C1(base) ((base) + 0x28)
>  
>  #define SUN50I_FMT_LIMIT(low, high) (((high) << 16) | (low))
>  
> diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.c 
> b/drivers/gpu/drm/sun4i/sun8i_csc.c
> index 3b022bfb85adc..5f32c57fe7769 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_csc.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_csc.c
> @@ -238,6 +238,14 @@ static const u32 yuv2yuv_de3[2][3][3][12] = {
>       },
>  };
>  
> +static u32 sun8i_csc_base(struct sun8i_mixer *mixer, int layer)
> +{
> +     if (mixer->cfg->de_type == sun8i_mixer_de33)
> +             return sun8i_channel_base(mixer, layer) - 0x800;
> +     else
> +             return ccsc_base[mixer->cfg->ccsc][layer];
> +}
> +
>  static void sun8i_csc_setup(struct regmap *map, u32 base,
>                           enum format_type fmt_type,
>                           enum drm_color_encoding encoding,
> @@ -358,6 +366,90 @@ static void sun8i_de3_ccsc_setup(struct sunxi_engine 
> *engine, int layer,
>                          mask, val);
>  }
>  
> +/* extract constant from high word and invert sign if necessary */
> +static u32 sun8i_de33_ccsc_get_constant(u32 value)
> +{
> +     value >>= 16;
> +
> +     if (value & BIT(15))
> +             return 0x400 - (value & 0x3ff);
> +
> +     return value;
> +}
> +
> +static void sun8i_de33_convert_table(const u32 *src, u32 *dst)
> +{
> +     dst[0] = sun8i_de33_ccsc_get_constant(src[3]);
> +     dst[1] = sun8i_de33_ccsc_get_constant(src[7]);
> +     dst[2] = sun8i_de33_ccsc_get_constant(src[11]);
> +     memcpy(&dst[3], src, sizeof(u32) * 12);
> +     dst[6] &= 0xffff;
> +     dst[10] &= 0xffff;
> +     dst[14] &= 0xffff;
> +}
> +
> +static void sun8i_de33_ccsc_setup(struct sun8i_mixer *mixer, int layer,
> +                               enum format_type fmt_type,
> +                               enum drm_color_encoding encoding,
> +                               enum drm_color_range range)
> +{
> +     u32 addr, val = 0, base, csc[15];
> +     struct sunxi_engine *engine;
> +     struct regmap *map;
> +     const u32 *table;
> +     int i;
> +
> +     table = yuv2rgb_de3[range][encoding];
> +     base = sun8i_csc_base(mixer, layer);
> +     engine = &mixer->engine;
> +     map = engine->regs;
> +
> +     switch (fmt_type) {
> +     case FORMAT_TYPE_RGB:
> +             if (engine->format == MEDIA_BUS_FMT_RGB888_1X24)
> +                     break;
> +             val = SUN8I_CSC_CTRL_EN;
> +             sun8i_de33_convert_table(rgb2yuv_de3[engine->encoding], csc);
> +             regmap_bulk_write(map, SUN50I_CSC_COEFF(base, 0), csc, 15);
> +             break;
> +     case FORMAT_TYPE_YUV:
> +             table = sun8i_csc_get_de3_yuv_table(encoding, range,
> +                                                 engine->format,
> +                                                 engine->encoding);
> +             if (!table)
> +                     break;
> +             val = SUN8I_CSC_CTRL_EN;
> +             sun8i_de33_convert_table(table, csc);
> +             regmap_bulk_write(map, SUN50I_CSC_COEFF(base, 0), csc, 15);
> +             break;
> +     case FORMAT_TYPE_YVU:
> +             table = sun8i_csc_get_de3_yuv_table(encoding, range,
> +                                                 engine->format,
> +                                                 engine->encoding);
> +             if (!table)
> +                     table = yuv2yuv_de3[range][encoding][encoding];
> +             val = SUN8I_CSC_CTRL_EN;
> +             sun8i_de33_convert_table(table, csc);
> +             for (i = 0; i < 15; i++) {
> +                     addr = SUN50I_CSC_COEFF(base, i);
> +                     if (i > 3) {
> +                             if (((i - 3) & 3) == 1)
> +                                     addr = SUN50I_CSC_COEFF(base, i + 1);
> +                             else if (((i - 3) & 3) == 2)
> +                                     addr = SUN50I_CSC_COEFF(base, i - 1);
> +                     }
> +                     regmap_write(map, addr, csc[i]);
> +             }
> +             break;
> +     default:
> +             val = 0;
> +             DRM_WARN("Wrong CSC mode specified.\n");
> +             return;
> +     }
> +
> +     regmap_write(map, SUN8I_CSC_CTRL(base), val);
> +}
> +
>  void sun8i_csc_set_ccsc(struct sun8i_mixer *mixer, int layer,
>                       enum format_type fmt_type,
>                       enum drm_color_encoding encoding,
> @@ -365,10 +457,14 @@ void sun8i_csc_set_ccsc(struct sun8i_mixer *mixer, int 
> layer,
>  {
>       u32 base;
>  
> -     if (mixer->cfg->is_de3) {
> +     if (mixer->cfg->de_type == sun8i_mixer_de3) {
>               sun8i_de3_ccsc_setup(&mixer->engine, layer,
>                                    fmt_type, encoding, range);
>               return;
> +     } else if (mixer->cfg->de_type == sun8i_mixer_de33) {
> +             sun8i_de33_ccsc_setup(mixer, layer, fmt_type,
> +                                   encoding, range);
> +             return;
>       }
>  
>       if (layer < mixer->cfg->vi_num) {
> diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.h 
> b/drivers/gpu/drm/sun4i/sun8i_csc.h
> index b7546e06e315c..2b762cb79f02c 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_csc.h
> +++ b/drivers/gpu/drm/sun4i/sun8i_csc.h
> @@ -20,6 +20,9 @@ struct sun8i_mixer;
>  #define SUN8I_CSC_CTRL(base)         ((base) + 0x0)
>  #define SUN8I_CSC_COEFF(base, i)     ((base) + 0x10 + 4 * (i))
>  
> +#define SUN50I_CSC_COEFF(base, i)    ((base) + 0x04 + 4 * (i))
> +#define SUN50I_CSC_ALPHA(base)               ((base) + 0x40)
> +
>  #define SUN8I_CSC_CTRL_EN            BIT(0)
>  
>  enum format_type {
> diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c 
> b/drivers/gpu/drm/sun4i/sun8i_mixer.c
> index b1525906a25d8..65615b5f9dbab 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
> @@ -254,10 +254,16 @@ int sun8i_mixer_drm_format_to_hw(u32 format, u32 
> *hw_format)
>  
>  static void sun8i_mixer_commit(struct sunxi_engine *engine)
>  {
> +     struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
> +
>       DRM_DEBUG_DRIVER("Committing changes\n");
>  
> -     regmap_write(engine->regs, SUN8I_MIXER_GLOBAL_DBUFF,
> -                  SUN8I_MIXER_GLOBAL_DBUFF_ENABLE);
> +     if (mixer->cfg->de_type == sun8i_mixer_de33)
> +             regmap_write(mixer->top_regs, SUN50I_MIXER_GLOBAL_DBUFF,
> +                          SUN8I_MIXER_GLOBAL_DBUFF_ENABLE);
> +     else
> +             regmap_write(engine->regs, SUN8I_MIXER_GLOBAL_DBUFF,
> +                          SUN8I_MIXER_GLOBAL_DBUFF_ENABLE);
>  }
>  
>  static struct drm_plane **sun8i_layers_init(struct drm_device *drm,
> @@ -306,25 +312,33 @@ static void sun8i_mixer_mode_set(struct sunxi_engine 
> *engine,
>                                const struct drm_display_mode *mode)
>  {
>       struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
> +     struct regmap *bld_regs, *disp_regs;
>       u32 bld_base, size, val;
>       bool interlaced;
>  
>       bld_base = sun8i_blender_base(mixer);
> +     bld_regs = sun8i_blender_regmap(mixer);
>       interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
>       size = SUN8I_MIXER_SIZE(mode->hdisplay, mode->vdisplay);
>  
>       DRM_DEBUG_DRIVER("Updating global size W: %u H: %u\n",
>                        mode->hdisplay, mode->vdisplay);
>  
> -     regmap_write(engine->regs, SUN8I_MIXER_GLOBAL_SIZE, size);
> -     regmap_write(engine->regs, SUN8I_MIXER_BLEND_OUTSIZE(bld_base), size);
> +     if (mixer->cfg->de_type == sun8i_mixer_de33) {
> +             disp_regs = mixer->disp_regs;
> +             regmap_write(mixer->top_regs, SUN50I_MIXER_GLOBAL_SIZE, size);
> +     } else {
> +             disp_regs = mixer->engine.regs;
> +             regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_SIZE, size);
> +     }
> +     regmap_write(bld_regs, SUN8I_MIXER_BLEND_OUTSIZE(bld_base), size);
>  
>       if (interlaced)
>               val = SUN8I_MIXER_BLEND_OUTCTL_INTERLACED;
>       else
>               val = 0;
>  
> -     regmap_update_bits(engine->regs, SUN8I_MIXER_BLEND_OUTCTL(bld_base),
> +     regmap_update_bits(bld_regs, SUN8I_MIXER_BLEND_OUTCTL(bld_base),
>                          SUN8I_MIXER_BLEND_OUTCTL_INTERLACED, val);
>  
>       DRM_DEBUG_DRIVER("Switching display mixer interlaced mode %s\n",
> @@ -335,10 +349,8 @@ static void sun8i_mixer_mode_set(struct sunxi_engine 
> *engine,
>       else
>               val = 0xff108080;
>  
> -     regmap_write(mixer->engine.regs,
> -                  SUN8I_MIXER_BLEND_BKCOLOR(bld_base), val);
> -     regmap_write(mixer->engine.regs,
> -                  SUN8I_MIXER_BLEND_ATTR_FCOLOR(bld_base, 0), val);
> +     regmap_write(disp_regs, SUN8I_MIXER_BLEND_BKCOLOR(bld_base), val);
> +     regmap_write(disp_regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(bld_base, 0), 
> val);
>  
>       if (mixer->cfg->has_formatter)
>               sun50i_fmt_setup(mixer, mode->hdisplay,
> @@ -378,12 +390,29 @@ static const struct sunxi_engine_ops sun8i_engine_ops = 
> {
>  };
>  
>  static const struct regmap_config sun8i_mixer_regmap_config = {
> +     .name           = "layers",
>       .reg_bits       = 32,
>       .val_bits       = 32,
>       .reg_stride     = 4,
>       .max_register   = 0xffffc, /* guessed */
>  };
>  
> +static const struct regmap_config sun8i_top_regmap_config = {
> +     .name           = "top",
> +     .reg_bits       = 32,
> +     .val_bits       = 32,
> +     .reg_stride     = 4,
> +     .max_register   = 0x3c,
> +};
> +
> +static const struct regmap_config sun8i_disp_regmap_config = {
> +     .name           = "display",
> +     .reg_bits       = 32,
> +     .val_bits       = 32,
> +     .reg_stride     = 4,
> +     .max_register   = 0x20000,
> +};
> +
>  static int sun8i_mixer_of_get_id(struct device_node *node)
>  {
>       struct device_node *ep, *remote;
> @@ -404,6 +433,76 @@ static int sun8i_mixer_of_get_id(struct device_node 
> *node)
>       return of_ep.id;
>  }
>  
> +static void sun8i_mixer_de2_init(struct sun8i_mixer *mixer)
> +{
> +     unsigned int base;
> +     int plane_cnt, i;
> +
> +     base = sun8i_blender_base(mixer);
> +
> +     /* Enable the mixer */
> +     regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL,
> +                  SUN8I_MIXER_GLOBAL_CTL_RT_EN);
> +
> +     /* Set background color to black */
> +     regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base),
> +                  SUN8I_MIXER_BLEND_COLOR_BLACK);
> +
> +     /*
> +      * Set fill color of bottom plane to black. Generally not needed
> +      * except when VI plane is at bottom (zpos = 0) and enabled.
> +      */
> +     regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
> +                  SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0));
> +     regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0),
> +                  SUN8I_MIXER_BLEND_COLOR_BLACK);
> +
> +     plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num;
> +     for (i = 0; i < plane_cnt; i++)
> +             regmap_write(mixer->engine.regs,
> +                          SUN8I_MIXER_BLEND_MODE(base, i),
> +                          SUN8I_MIXER_BLEND_MODE_DEF);
> +
> +     regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
> +                        SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0);
> +}
> +
> +static void sun8i_mixer_de33_init(struct sun8i_mixer *mixer)
> +{
> +     unsigned int base;
> +     int plane_cnt, i;
> +
> +     base = sun8i_blender_base(mixer);
> +
> +     /* Enable the mixer */
> +     regmap_write(mixer->top_regs, SUN50I_MIXER_GLOBAL_CTL,
> +                  SUN8I_MIXER_GLOBAL_CTL_RT_EN);
> +
> +     regmap_write(mixer->top_regs, SUN50I_MIXER_GLOBAL_CLK, 1);
> +
> +     /* Set background color to black */
> +     regmap_write(mixer->disp_regs, SUN8I_MIXER_BLEND_BKCOLOR(base),
> +                  SUN8I_MIXER_BLEND_COLOR_BLACK);
> +
> +     /*
> +      * Set fill color of bottom plane to black. Generally not needed
> +      * except when VI plane is at bottom (zpos = 0) and enabled.
> +      */
> +     regmap_write(mixer->disp_regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
> +                  SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0));
> +     regmap_write(mixer->disp_regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0),
> +                  SUN8I_MIXER_BLEND_COLOR_BLACK);
> +
> +     plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num;
> +     for (i = 0; i < plane_cnt; i++)
> +             regmap_write(mixer->disp_regs,
> +                          SUN8I_MIXER_BLEND_MODE(base, i),
> +                          SUN8I_MIXER_BLEND_MODE_DEF);
> +
> +     regmap_update_bits(mixer->disp_regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
> +                        SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0);
> +}
> +
>  static int sun8i_mixer_bind(struct device *dev, struct device *master,
>                             void *data)
>  {
> @@ -412,8 +511,6 @@ static int sun8i_mixer_bind(struct device *dev, struct 
> device *master,
>       struct sun4i_drv *drv = drm->dev_private;
>       struct sun8i_mixer *mixer;
>       void __iomem *regs;
> -     unsigned int base;
> -     int plane_cnt;
>       int i, ret;
>  
>       /*
> @@ -476,6 +573,30 @@ static int sun8i_mixer_bind(struct device *dev, struct 
> device *master,
>               return PTR_ERR(mixer->engine.regs);
>       }
>  
> +     if (mixer->cfg->de_type == sun8i_mixer_de33) {
> +             regs = devm_platform_ioremap_resource(pdev, 1);
> +             if (IS_ERR(regs))
> +                     return PTR_ERR(regs);
> +
> +             mixer->top_regs = devm_regmap_init_mmio(dev, regs,
> +                                                     
> &sun8i_top_regmap_config);
> +             if (IS_ERR(mixer->top_regs)) {
> +                     dev_err(dev, "Couldn't create the top regmap\n");
> +                     return PTR_ERR(mixer->top_regs);
> +             }
> +
> +             regs = devm_platform_ioremap_resource(pdev, 2);
> +             if (IS_ERR(regs))
> +                     return PTR_ERR(regs);
> +
> +             mixer->disp_regs = devm_regmap_init_mmio(dev, regs,
> +                                                     
> &sun8i_disp_regmap_config);
> +             if (IS_ERR(mixer->disp_regs)) {
> +                     dev_err(dev, "Couldn't create the disp regmap\n");
> +                     return PTR_ERR(mixer->disp_regs);
> +             }
> +     }
> +
>       mixer->reset = devm_reset_control_get(dev, NULL);
>       if (IS_ERR(mixer->reset)) {
>               dev_err(dev, "Couldn't get our reset line\n");
> @@ -515,10 +636,10 @@ static int sun8i_mixer_bind(struct device *dev, struct 
> device *master,
>  
>       list_add_tail(&mixer->engine.list, &drv->engine_list);
>  
> -     base = sun8i_blender_base(mixer);
> -
>       /* Reset registers and disable unused sub-engines */
> -     if (mixer->cfg->is_de3) {
> +     if (mixer->cfg->de_type == sun8i_mixer_de33) {
> +             sun8i_mixer_de33_init(mixer);
> +     } else if (mixer->cfg->de_type == sun8i_mixer_de3) {
>               for (i = 0; i < DE3_MIXER_UNIT_SIZE; i += 4)
>                       regmap_write(mixer->engine.regs, i, 0);
>  
> @@ -532,7 +653,9 @@ static int sun8i_mixer_bind(struct device *dev, struct 
> device *master,
>               regmap_write(mixer->engine.regs, SUN50I_MIXER_FMT_EN, 0);
>               regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC0_EN, 0);
>               regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC1_EN, 0);
> -     } else {
> +
> +             sun8i_mixer_de2_init(mixer);
> +     } else if (mixer->cfg->de_type == sun8i_mixer_de2) {
>               for (i = 0; i < DE2_MIXER_UNIT_SIZE; i += 4)
>                       regmap_write(mixer->engine.regs, i, 0);
>  
> @@ -543,33 +666,9 @@ static int sun8i_mixer_bind(struct device *dev, struct 
> device *master,
>               regmap_write(mixer->engine.regs, SUN8I_MIXER_ASE_EN, 0);
>               regmap_write(mixer->engine.regs, SUN8I_MIXER_FCC_EN, 0);
>               regmap_write(mixer->engine.regs, SUN8I_MIXER_DCSC_EN, 0);
> -     }
> -
> -     /* Enable the mixer */
> -     regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL,
> -                  SUN8I_MIXER_GLOBAL_CTL_RT_EN);
> -
> -     /* Set background color to black */
> -     regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base),
> -                  SUN8I_MIXER_BLEND_COLOR_BLACK);
> -
> -     /*
> -      * Set fill color of bottom plane to black. Generally not needed
> -      * except when VI plane is at bottom (zpos = 0) and enabled.
> -      */
> -     regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
> -                  SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0));
> -     regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0),
> -                  SUN8I_MIXER_BLEND_COLOR_BLACK);
>  
> -     plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num;
> -     for (i = 0; i < plane_cnt; i++)
> -             regmap_write(mixer->engine.regs,
> -                          SUN8I_MIXER_BLEND_MODE(base, i),
> -                          SUN8I_MIXER_BLEND_MODE_DEF);
> -
> -     regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
> -                        SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0);
> +             sun8i_mixer_de2_init(mixer);
> +     }
>  
>       return 0;
>  
> @@ -609,6 +708,7 @@ static void sun8i_mixer_remove(struct platform_device 
> *pdev)
>  
>  static const struct sun8i_mixer_cfg sun8i_a83t_mixer0_cfg = {
>       .ccsc           = CCSC_MIXER0_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .scaler_mask    = 0xf,
>       .scanline_yuv   = 2048,
>       .ui_num         = 3,
> @@ -617,6 +717,7 @@ static const struct sun8i_mixer_cfg sun8i_a83t_mixer0_cfg 
> = {
>  
>  static const struct sun8i_mixer_cfg sun8i_a83t_mixer1_cfg = {
>       .ccsc           = CCSC_MIXER1_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .scaler_mask    = 0x3,
>       .scanline_yuv   = 2048,
>       .ui_num         = 1,
> @@ -625,6 +726,7 @@ static const struct sun8i_mixer_cfg sun8i_a83t_mixer1_cfg 
> = {
>  
>  static const struct sun8i_mixer_cfg sun8i_h3_mixer0_cfg = {
>       .ccsc           = CCSC_MIXER0_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .mod_rate       = 432000000,
>       .scaler_mask    = 0xf,
>       .scanline_yuv   = 2048,
> @@ -634,6 +736,7 @@ static const struct sun8i_mixer_cfg sun8i_h3_mixer0_cfg = 
> {
>  
>  static const struct sun8i_mixer_cfg sun8i_r40_mixer0_cfg = {
>       .ccsc           = CCSC_MIXER0_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .mod_rate       = 297000000,
>       .scaler_mask    = 0xf,
>       .scanline_yuv   = 2048,
> @@ -643,6 +746,7 @@ static const struct sun8i_mixer_cfg sun8i_r40_mixer0_cfg 
> = {
>  
>  static const struct sun8i_mixer_cfg sun8i_r40_mixer1_cfg = {
>       .ccsc           = CCSC_MIXER1_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .mod_rate       = 297000000,
>       .scaler_mask    = 0x3,
>       .scanline_yuv   = 2048,
> @@ -651,6 +755,7 @@ static const struct sun8i_mixer_cfg sun8i_r40_mixer1_cfg 
> = {
>  };
>  
>  static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = {
> +     .de_type = sun8i_mixer_de2,
>       .vi_num = 2,
>       .ui_num = 1,
>       .scaler_mask = 0x3,
> @@ -661,6 +766,7 @@ static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = 
> {
>  
>  static const struct sun8i_mixer_cfg sun20i_d1_mixer0_cfg = {
>       .ccsc           = CCSC_D1_MIXER0_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .mod_rate       = 297000000,
>       .scaler_mask    = 0x3,
>       .scanline_yuv   = 2048,
> @@ -670,6 +776,7 @@ static const struct sun8i_mixer_cfg sun20i_d1_mixer0_cfg 
> = {
>  
>  static const struct sun8i_mixer_cfg sun20i_d1_mixer1_cfg = {
>       .ccsc           = CCSC_MIXER1_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .mod_rate       = 297000000,
>       .scaler_mask    = 0x1,
>       .scanline_yuv   = 1024,
> @@ -679,6 +786,7 @@ static const struct sun8i_mixer_cfg sun20i_d1_mixer1_cfg 
> = {
>  
>  static const struct sun8i_mixer_cfg sun50i_a64_mixer0_cfg = {
>       .ccsc           = CCSC_MIXER0_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .mod_rate       = 297000000,
>       .scaler_mask    = 0xf,
>       .scanline_yuv   = 4096,
> @@ -688,6 +796,7 @@ static const struct sun8i_mixer_cfg sun50i_a64_mixer0_cfg 
> = {
>  
>  static const struct sun8i_mixer_cfg sun50i_a64_mixer1_cfg = {
>       .ccsc           = CCSC_MIXER1_LAYOUT,
> +     .de_type        = sun8i_mixer_de2,
>       .mod_rate       = 297000000,
>       .scaler_mask    = 0x3,
>       .scanline_yuv   = 2048,
> @@ -697,7 +806,7 @@ static const struct sun8i_mixer_cfg sun50i_a64_mixer1_cfg 
> = {
>  
>  static const struct sun8i_mixer_cfg sun50i_h6_mixer0_cfg = {
>       .ccsc           = CCSC_MIXER0_LAYOUT,
> -     .is_de3         = true,
> +     .de_type        = sun8i_mixer_de3,
>       .has_formatter  = 1,
>       .mod_rate       = 600000000,
>       .scaler_mask    = 0xf,
> @@ -706,6 +815,18 @@ static const struct sun8i_mixer_cfg sun50i_h6_mixer0_cfg 
> = {
>       .vi_num         = 1,
>  };
>  
> +static const struct sun8i_mixer_cfg sun50i_h616_mixer0_cfg = {
> +     .ccsc           = CCSC_MIXER0_LAYOUT,
> +     .de_type        = sun8i_mixer_de33,
> +     .has_formatter  = 1,
> +     .mod_rate       = 600000000,
> +     .scaler_mask    = 0xf,
> +     .scanline_yuv   = 4096,
> +     .ui_num         = 3,
> +     .vi_num         = 1,
> +     .map            = {0, 6, 7, 8},
> +};
> +
>  static const struct of_device_id sun8i_mixer_of_table[] = {
>       {
>               .compatible = "allwinner,sun8i-a83t-de2-mixer-0",
> @@ -751,6 +872,10 @@ static const struct of_device_id sun8i_mixer_of_table[] 
> = {
>               .compatible = "allwinner,sun50i-h6-de3-mixer-0",
>               .data = &sun50i_h6_mixer0_cfg,
>       },
> +     {
> +             .compatible = "allwinner,sun50i-h616-de33-mixer-0",
> +             .data = &sun50i_h616_mixer0_cfg,
> +     },
>       { }
>  };
>  MODULE_DEVICE_TABLE(of, sun8i_mixer_of_table);
> diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h 
> b/drivers/gpu/drm/sun4i/sun8i_mixer.h
> index 13401643c7bfc..f1c2cdb88d0eb 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
> +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
> @@ -20,6 +20,12 @@
>  #define SUN8I_MIXER_GLOBAL_DBUFF             0x8
>  #define SUN8I_MIXER_GLOBAL_SIZE                      0xc
>  
> +#define SUN50I_MIXER_GLOBAL_CTL                      0x0
> +#define SUN50I_MIXER_GLOBAL_STATUS           0x4
> +#define SUN50I_MIXER_GLOBAL_SIZE             0x8
> +#define SUN50I_MIXER_GLOBAL_CLK                      0xc
> +#define SUN50I_MIXER_GLOBAL_DBUFF            0x10
> +
>  #define SUN8I_MIXER_GLOBAL_CTL_RT_EN         BIT(0)
>  
>  #define SUN8I_MIXER_GLOBAL_DBUFF_ENABLE              BIT(0)
> @@ -150,6 +156,12 @@ enum {
>       CCSC_D1_MIXER0_LAYOUT,
>  };
>  
> +enum sun8i_mixer_type {
> +     sun8i_mixer_de2,
> +     sun8i_mixer_de3,
> +     sun8i_mixer_de33,
> +};
> +
>  /**
>   * struct sun8i_mixer_cfg - mixer HW configuration
>   * @vi_num: number of VI channels
> @@ -171,9 +183,10 @@ struct sun8i_mixer_cfg {
>       int             scaler_mask;
>       int             ccsc;
>       unsigned long   mod_rate;
> -     unsigned int    is_de3 : 1;
> +     unsigned int    de_type;
>       unsigned int    has_formatter : 1;
>       unsigned int    scanline_yuv;
> +     unsigned int    map[6];
>  };
>  
>  struct sun8i_mixer {
> @@ -185,6 +198,9 @@ struct sun8i_mixer {
>  
>       struct clk                      *bus_clk;
>       struct clk                      *mod_clk;
> +
> +     struct regmap                   *top_regs;
> +     struct regmap                   *disp_regs;
>  };
>  
>  static inline struct sun8i_mixer *
> @@ -196,13 +212,22 @@ engine_to_sun8i_mixer(struct sunxi_engine *engine)
>  static inline u32
>  sun8i_blender_base(struct sun8i_mixer *mixer)
>  {
> -     return mixer->cfg->is_de3 ? DE3_BLD_BASE : DE2_BLD_BASE;
> +     return mixer->cfg->de_type == sun8i_mixer_de3 ? DE3_BLD_BASE : 
> DE2_BLD_BASE;
> +}
> +
> +static inline struct regmap *
> +sun8i_blender_regmap(struct sun8i_mixer *mixer)
> +{
> +     return mixer->cfg->de_type == sun8i_mixer_de33 ?
> +             mixer->disp_regs : mixer->engine.regs;
>  }
>  
>  static inline u32
>  sun8i_channel_base(struct sun8i_mixer *mixer, int channel)
>  {
> -     if (mixer->cfg->is_de3)
> +     if (mixer->cfg->de_type == sun8i_mixer_de33)
> +             return mixer->cfg->map[channel] * 0x20000 + DE2_CH_SIZE;
> +     else if (mixer->cfg->de_type == sun8i_mixer_de3)
>               return DE3_CH_BASE + channel * DE3_CH_SIZE;
>       else
>               return DE2_CH_BASE + channel * DE2_CH_SIZE;
> diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c 
> b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> index 91781b5bbbbce..1649816fe435e 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> @@ -24,14 +24,17 @@
>  #include "sun8i_mixer.h"
>  #include "sun8i_ui_layer.h"
>  #include "sun8i_ui_scaler.h"
> +#include "sun8i_vi_scaler.h"
>  
>  static void sun8i_ui_layer_enable(struct sun8i_mixer *mixer, int channel,
>                                 int overlay, bool enable, unsigned int zpos,
>                                 unsigned int old_zpos)
>  {
>       u32 val, bld_base, ch_base;
> +     struct regmap *bld_regs;
>  
>       bld_base = sun8i_blender_base(mixer);
> +     bld_regs = sun8i_blender_regmap(mixer);
>       ch_base = sun8i_channel_base(mixer, channel);
>  
>       DRM_DEBUG_DRIVER("%sabling channel %d overlay %d\n",
> @@ -47,12 +50,12 @@ static void sun8i_ui_layer_enable(struct sun8i_mixer 
> *mixer, int channel,
>                          SUN8I_MIXER_CHAN_UI_LAYER_ATTR_EN, val);
>  
>       if (!enable || zpos != old_zpos) {
> -             regmap_update_bits(mixer->engine.regs,
> +             regmap_update_bits(bld_regs,
>                                  SUN8I_MIXER_BLEND_PIPE_CTL(bld_base),
>                                  SUN8I_MIXER_BLEND_PIPE_CTL_EN(old_zpos),
>                                  0);
>  
> -             regmap_update_bits(mixer->engine.regs,
> +             regmap_update_bits(bld_regs,
>                                  SUN8I_MIXER_BLEND_ROUTE(bld_base),
>                                  SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(old_zpos),
>                                  0);
> @@ -61,13 +64,13 @@ static void sun8i_ui_layer_enable(struct sun8i_mixer 
> *mixer, int channel,
>       if (enable) {
>               val = SUN8I_MIXER_BLEND_PIPE_CTL_EN(zpos);
>  
> -             regmap_update_bits(mixer->engine.regs,
> +             regmap_update_bits(bld_regs,
>                                  SUN8I_MIXER_BLEND_PIPE_CTL(bld_base),
>                                  val, val);
>  
>               val = channel << SUN8I_MIXER_BLEND_ROUTE_PIPE_SHIFT(zpos);
>  
> -             regmap_update_bits(mixer->engine.regs,
> +             regmap_update_bits(bld_regs,
>                                  SUN8I_MIXER_BLEND_ROUTE(bld_base),
>                                  SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(zpos),
>                                  val);
> @@ -101,6 +104,7 @@ static int sun8i_ui_layer_update_coord(struct sun8i_mixer 
> *mixer, int channel,
>  {
>       struct drm_plane_state *state = plane->state;
>       u32 src_w, src_h, dst_w, dst_h;
> +     struct regmap *bld_regs;
>       u32 bld_base, ch_base;
>       u32 outsize, insize;
>       u32 hphase, vphase;
> @@ -109,6 +113,7 @@ static int sun8i_ui_layer_update_coord(struct sun8i_mixer 
> *mixer, int channel,
>                        channel, overlay);
>  
>       bld_base = sun8i_blender_base(mixer);
> +     bld_regs = sun8i_blender_regmap(mixer);
>       ch_base = sun8i_channel_base(mixer, channel);
>  
>       src_w = drm_rect_width(&state->src) >> 16;
> @@ -141,22 +146,33 @@ static int sun8i_ui_layer_update_coord(struct 
> sun8i_mixer *mixer, int channel,
>               hscale = state->src_w / state->crtc_w;
>               vscale = state->src_h / state->crtc_h;
>  
> -             sun8i_ui_scaler_setup(mixer, channel, src_w, src_h, dst_w,
> -                                   dst_h, hscale, vscale, hphase, vphase);
> -             sun8i_ui_scaler_enable(mixer, channel, true);
> +             if (mixer->cfg->de_type == sun8i_mixer_de33) {
> +                     sun8i_vi_scaler_setup(mixer, channel, src_w, src_h,
> +                                           dst_w, dst_h, hscale, vscale,
> +                                           hphase, vphase,
> +                                           state->fb->format);
> +             } else {
> +                     sun8i_ui_scaler_setup(mixer, channel, src_w, src_h,
> +                                           dst_w, dst_h, hscale, vscale,
> +                                           hphase, vphase);
> +                     sun8i_ui_scaler_enable(mixer, channel, true);
> +             }
>       } else {
>               DRM_DEBUG_DRIVER("HW scaling is not needed\n");
> -             sun8i_ui_scaler_enable(mixer, channel, false);
> +             if (mixer->cfg->de_type == sun8i_mixer_de33)
> +                     sun8i_vi_scaler_disable(mixer, channel);
> +             else
> +                     sun8i_ui_scaler_enable(mixer, channel, false);
>       }
>  
>       /* Set base coordinates */
>       DRM_DEBUG_DRIVER("Layer destination coordinates X: %d Y: %d\n",
>                        state->dst.x1, state->dst.y1);
>       DRM_DEBUG_DRIVER("Layer destination size W: %d H: %d\n", dst_w, dst_h);
> -     regmap_write(mixer->engine.regs,
> +     regmap_write(bld_regs,
>                    SUN8I_MIXER_BLEND_ATTR_COORD(bld_base, zpos),
>                    SUN8I_MIXER_COORD(state->dst.x1, state->dst.y1));
> -     regmap_write(mixer->engine.regs,
> +     regmap_write(bld_regs,
>                    SUN8I_MIXER_BLEND_ATTR_INSIZE(bld_base, zpos),
>                    outsize);
>  
> diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_scaler.c 
> b/drivers/gpu/drm/sun4i/sun8i_ui_scaler.c
> index ae0806bccac7f..504ffa0971a4f 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_ui_scaler.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_ui_scaler.c
> @@ -93,7 +93,7 @@ static u32 sun8i_ui_scaler_base(struct sun8i_mixer *mixer, 
> int channel)
>  {
>       int vi_num = mixer->cfg->vi_num;
>  
> -     if (mixer->cfg->is_de3)
> +     if (mixer->cfg->de_type == sun8i_mixer_de3)
>               return DE3_VI_SCALER_UNIT_BASE +
>                      DE3_VI_SCALER_UNIT_SIZE * vi_num +
>                      DE3_UI_SCALER_UNIT_SIZE * (channel - vi_num);
> diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c 
> b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
> index bda91c3e2bb75..d8a97245cfe1e 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
> @@ -25,8 +25,10 @@ static void sun8i_vi_layer_enable(struct sun8i_mixer 
> *mixer, int channel,
>                                 unsigned int old_zpos)
>  {
>       u32 val, bld_base, ch_base;
> +     struct regmap *bld_regs;
>  
>       bld_base = sun8i_blender_base(mixer);
> +     bld_regs = sun8i_blender_regmap(mixer);
>       ch_base = sun8i_channel_base(mixer, channel);
>  
>       DRM_DEBUG_DRIVER("%sabling VI channel %d overlay %d\n",
> @@ -42,12 +44,12 @@ static void sun8i_vi_layer_enable(struct sun8i_mixer 
> *mixer, int channel,
>                          SUN8I_MIXER_CHAN_VI_LAYER_ATTR_EN, val);
>  
>       if (!enable || zpos != old_zpos) {
> -             regmap_update_bits(mixer->engine.regs,
> +             regmap_update_bits(bld_regs,
>                                  SUN8I_MIXER_BLEND_PIPE_CTL(bld_base),
>                                  SUN8I_MIXER_BLEND_PIPE_CTL_EN(old_zpos),
>                                  0);
>  
> -             regmap_update_bits(mixer->engine.regs,
> +             regmap_update_bits(bld_regs,
>                                  SUN8I_MIXER_BLEND_ROUTE(bld_base),
>                                  SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(old_zpos),
>                                  0);
> @@ -56,13 +58,13 @@ static void sun8i_vi_layer_enable(struct sun8i_mixer 
> *mixer, int channel,
>       if (enable) {
>               val = SUN8I_MIXER_BLEND_PIPE_CTL_EN(zpos);
>  
> -             regmap_update_bits(mixer->engine.regs,
> +             regmap_update_bits(bld_regs,
>                                  SUN8I_MIXER_BLEND_PIPE_CTL(bld_base),
>                                  val, val);
>  
>               val = channel << SUN8I_MIXER_BLEND_ROUTE_PIPE_SHIFT(zpos);
>  
> -             regmap_update_bits(mixer->engine.regs,
> +             regmap_update_bits(bld_regs,
>                                  SUN8I_MIXER_BLEND_ROUTE(bld_base),
>                                  SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(zpos),
>                                  val);
> @@ -76,7 +78,7 @@ static void sun8i_vi_layer_update_alpha(struct sun8i_mixer 
> *mixer, int channel,
>  
>       ch_base = sun8i_channel_base(mixer, channel);
>  
> -     if (mixer->cfg->is_de3) {
> +     if (mixer->cfg->de_type >= sun8i_mixer_de3) {
>               mask = SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MASK |
>                      SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_MASK;
>               val = SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA
> @@ -106,6 +108,7 @@ static int sun8i_vi_layer_update_coord(struct sun8i_mixer 
> *mixer, int channel,
>       struct drm_plane_state *state = plane->state;
>       const struct drm_format_info *format = state->fb->format;
>       u32 src_w, src_h, dst_w, dst_h;
> +     struct regmap *bld_regs;
>       u32 bld_base, ch_base;
>       u32 outsize, insize;
>       u32 hphase, vphase;
> @@ -117,6 +120,7 @@ static int sun8i_vi_layer_update_coord(struct sun8i_mixer 
> *mixer, int channel,
>                        channel, overlay);
>  
>       bld_base = sun8i_blender_base(mixer);
> +     bld_regs = sun8i_blender_regmap(mixer);
>       ch_base = sun8i_channel_base(mixer, channel);
>  
>       src_w = drm_rect_width(&state->src) >> 16;
> @@ -207,10 +211,9 @@ static int sun8i_vi_layer_update_coord(struct 
> sun8i_mixer *mixer, int channel,
>               sun8i_vi_scaler_setup(mixer, channel, src_w, src_h, dst_w,
>                                     dst_h, hscale, vscale, hphase, vphase,
>                                     format);
> -             sun8i_vi_scaler_enable(mixer, channel, true);
>       } else {
>               DRM_DEBUG_DRIVER("HW scaling is not needed\n");
> -             sun8i_vi_scaler_enable(mixer, channel, false);
> +             sun8i_vi_scaler_disable(mixer, channel);
>       }
>  
>       regmap_write(mixer->engine.regs,
> @@ -234,10 +237,10 @@ static int sun8i_vi_layer_update_coord(struct 
> sun8i_mixer *mixer, int channel,
>       DRM_DEBUG_DRIVER("Layer destination coordinates X: %d Y: %d\n",
>                        state->dst.x1, state->dst.y1);
>       DRM_DEBUG_DRIVER("Layer destination size W: %d H: %d\n", dst_w, dst_h);
> -     regmap_write(mixer->engine.regs,
> +     regmap_write(bld_regs,
>                    SUN8I_MIXER_BLEND_ATTR_COORD(bld_base, zpos),
>                    SUN8I_MIXER_COORD(state->dst.x1, state->dst.y1));
> -     regmap_write(mixer->engine.regs,
> +     regmap_write(bld_regs,
>                    SUN8I_MIXER_BLEND_ATTR_INSIZE(bld_base, zpos),
>                    outsize);
>  
> @@ -410,7 +413,7 @@ static void sun8i_vi_layer_atomic_disable(struct 
> drm_plane *plane,
>  
>       sun8i_vi_layer_enable(mixer, layer->channel, layer->overlay, false, 0,
>                             old_zpos);
> -     if (mixer->cfg->is_de3)
> +     if (mixer->cfg->de_type >= sun8i_mixer_de3)
>               sun50i_afbc_disable(mixer, layer->channel);
>  }
>  
> @@ -431,7 +434,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane 
> *plane,
>       if (!new_state->visible) {
>               sun8i_vi_layer_enable(mixer, layer->channel,
>                                     layer->overlay, false, 0, old_zpos);
> -             if (mixer->cfg->is_de3)
> +             if (mixer->cfg->de_type >= sun8i_mixer_de3)
>                       sun50i_afbc_disable(mixer, layer->channel);
>               return;
>       }
> @@ -448,7 +451,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane 
> *plane,
>                                  plane->state->color_encoding,
>                                  plane->state->color_range);
>       } else {
> -             if (mixer->cfg->is_de3)
> +             if (mixer->cfg->de_type >= sun8i_mixer_de3)
>                       sun50i_afbc_disable(mixer, layer->channel);
>               sun8i_vi_layer_update_alpha(mixer, layer->channel,
>                                           layer->overlay, plane);
> @@ -612,7 +615,7 @@ struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct 
> drm_device *drm,
>       layer->channel = index;
>       layer->overlay = 0;
>  
> -     if (mixer->cfg->is_de3) {
> +     if (mixer->cfg->de_type >= sun8i_mixer_de3) {
>               formats = sun8i_vi_layer_de3_formats;
>               format_count = ARRAY_SIZE(sun8i_vi_layer_de3_formats);
>               modifiers = sun50i_layer_de3_modifiers;
> @@ -637,7 +640,7 @@ struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct 
> drm_device *drm,
>  
>       plane_cnt = mixer->cfg->ui_num + mixer->cfg->vi_num;
>  
> -     if (mixer->cfg->vi_num == 1 || mixer->cfg->is_de3) {
> +     if (mixer->cfg->vi_num == 1 || mixer->cfg->de_type >= sun8i_mixer_de3) {
>               ret = drm_plane_create_alpha_property(&layer->plane);
>               if (ret) {
>                       dev_err(drm->dev, "Couldn't add alpha property\n");
> @@ -654,7 +657,7 @@ struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct 
> drm_device *drm,
>  
>       supported_encodings = BIT(DRM_COLOR_YCBCR_BT601) |
>                             BIT(DRM_COLOR_YCBCR_BT709);
> -     if (mixer->cfg->is_de3)
> +     if (mixer->cfg->de_type >= sun8i_mixer_de3)
>               supported_encodings |= BIT(DRM_COLOR_YCBCR_BT2020);
>  
>       supported_ranges = BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
> diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c 
> b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
> index 7ba75011adf9f..9c7f6e7d71d50 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
> @@ -835,7 +835,9 @@ static const u32 bicubic4coefftab32[480] = {
>  
>  static u32 sun8i_vi_scaler_base(struct sun8i_mixer *mixer, int channel)
>  {
> -     if (mixer->cfg->is_de3)
> +     if (mixer->cfg->de_type == sun8i_mixer_de33)
> +             return sun8i_channel_base(mixer, channel) + 0x3000;
> +     else if (mixer->cfg->de_type == sun8i_mixer_de3)
>               return DE3_VI_SCALER_UNIT_BASE +
>                      DE3_VI_SCALER_UNIT_SIZE * channel;
>       else
> @@ -843,6 +845,14 @@ static u32 sun8i_vi_scaler_base(struct sun8i_mixer 
> *mixer, int channel)
>                      DE2_VI_SCALER_UNIT_SIZE * channel;
>  }
>  
> +static bool sun8i_vi_scaler_is_vi_plane(struct sun8i_mixer *mixer, int 
> channel)
> +{
> +     if (mixer->cfg->de_type == sun8i_mixer_de33)
> +             return mixer->cfg->map[channel] < mixer->cfg->vi_num;
> +
> +     return true;
> +}
> +
>  static int sun8i_vi_scaler_coef_index(unsigned int step)
>  {
>       unsigned int scale, int_part, float_part;
> @@ -867,60 +877,74 @@ static int sun8i_vi_scaler_coef_index(unsigned int step)
>       }
>  }
>  
> -static void sun8i_vi_scaler_set_coeff(struct regmap *map, u32 base,
> -                                   u32 hstep, u32 vstep,
> -                                   const struct drm_format_info *format)
> +static void sun8i_vi_scaler_set_coeff_vi(struct regmap *map, u32 base,
> +                                      u32 hstep, u32 vstep,
> +                                      const struct drm_format_info *format)
>  {
>       const u32 *ch_left, *ch_right, *cy;
> -     int offset, i;
> +     int offset;
>  
> -     if (format->hsub == 1 && format->vsub == 1) {
> -             ch_left = lan3coefftab32_left;
> -             ch_right = lan3coefftab32_right;
> -             cy = lan2coefftab32;
> -     } else {
> +     if (format->is_yuv) {
>               ch_left = bicubic8coefftab32_left;
>               ch_right = bicubic8coefftab32_right;
>               cy = bicubic4coefftab32;
> +     } else {
> +             ch_left = lan3coefftab32_left;
> +             ch_right = lan3coefftab32_right;
> +             cy = lan2coefftab32;
>       }
>  
>       offset = sun8i_vi_scaler_coef_index(hstep) *
>                       SUN8I_VI_SCALER_COEFF_COUNT;
> -     for (i = 0; i < SUN8I_VI_SCALER_COEFF_COUNT; i++) {
> -             regmap_write(map, SUN8I_SCALER_VSU_YHCOEFF0(base, i),
> -                          lan3coefftab32_left[offset + i]);
> -             regmap_write(map, SUN8I_SCALER_VSU_YHCOEFF1(base, i),
> -                          lan3coefftab32_right[offset + i]);
> -             regmap_write(map, SUN8I_SCALER_VSU_CHCOEFF0(base, i),
> -                          ch_left[offset + i]);
> -             regmap_write(map, SUN8I_SCALER_VSU_CHCOEFF1(base, i),
> -                          ch_right[offset + i]);
> -     }
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_YHCOEFF0(base, 0),
> +                       &lan3coefftab32_left[offset],
> +                       SUN8I_VI_SCALER_COEFF_COUNT);
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_YHCOEFF1(base, 0),
> +                       &lan3coefftab32_right[offset],
> +                       SUN8I_VI_SCALER_COEFF_COUNT);
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_CHCOEFF0(base, 0),
> +                       &ch_left[offset], SUN8I_VI_SCALER_COEFF_COUNT);
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_CHCOEFF1(base, 0),
> +                       &ch_right[offset], SUN8I_VI_SCALER_COEFF_COUNT);
>  
>       offset = sun8i_vi_scaler_coef_index(hstep) *
>                       SUN8I_VI_SCALER_COEFF_COUNT;
> -     for (i = 0; i < SUN8I_VI_SCALER_COEFF_COUNT; i++) {
> -             regmap_write(map, SUN8I_SCALER_VSU_YVCOEFF(base, i),
> -                          lan2coefftab32[offset + i]);
> -             regmap_write(map, SUN8I_SCALER_VSU_CVCOEFF(base, i),
> -                          cy[offset + i]);
> -     }
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_YVCOEFF(base, 0),
> +                       &lan2coefftab32[offset], SUN8I_VI_SCALER_COEFF_COUNT);
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_CVCOEFF(base, 0),
> +                       &cy[offset], SUN8I_VI_SCALER_COEFF_COUNT);
>  }
>  
> -void sun8i_vi_scaler_enable(struct sun8i_mixer *mixer, int layer, bool 
> enable)
> +static void sun8i_vi_scaler_set_coeff_ui(struct regmap *map, u32 base,
> +                                      u32 hstep, u32 vstep,
> +                                      const struct drm_format_info *format)
>  {
> -     u32 val, base;
> +     const u32 *table;
> +     int offset;
>  
> -     base = sun8i_vi_scaler_base(mixer, layer);
> +     offset = sun8i_vi_scaler_coef_index(hstep) *
> +                     SUN8I_VI_SCALER_COEFF_COUNT;
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_YHCOEFF0(base, 0),
> +                       &lan2coefftab32[offset], SUN8I_VI_SCALER_COEFF_COUNT);
> +     offset = sun8i_vi_scaler_coef_index(vstep) *
> +                     SUN8I_VI_SCALER_COEFF_COUNT;
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_YVCOEFF(base, 0),
> +                       &lan2coefftab32[offset], SUN8I_VI_SCALER_COEFF_COUNT);
>  
> -     if (enable)
> -             val = SUN8I_SCALER_VSU_CTRL_EN |
> -                   SUN8I_SCALER_VSU_CTRL_COEFF_RDY;
> -     else
> -             val = 0;
> +     table = format->is_yuv ? bicubic4coefftab32 : lan2coefftab32;
> +     offset = sun8i_vi_scaler_coef_index(hstep) *
> +                     SUN8I_VI_SCALER_COEFF_COUNT;
> +     regmap_bulk_write(map, SUN8I_SCALER_VSU_CHCOEFF0(base, 0),
> +                       &table[offset], SUN8I_VI_SCALER_COEFF_COUNT);
> +}
>  
> -     regmap_write(mixer->engine.regs,
> -                  SUN8I_SCALER_VSU_CTRL(base), val);
> +void sun8i_vi_scaler_disable(struct sun8i_mixer *mixer, int layer)
> +{
> +     u32 base;
> +
> +     base = sun8i_vi_scaler_base(mixer, layer);
> +
> +     regmap_write(mixer->engine.regs, SUN8I_SCALER_VSU_CTRL(base), 0);
>  }
>  
>  void sun8i_vi_scaler_setup(struct sun8i_mixer *mixer, int layer,
> @@ -956,7 +980,10 @@ void sun8i_vi_scaler_setup(struct sun8i_mixer *mixer, 
> int layer,
>               cvphase = vphase;
>       }
>  
> -     if (mixer->cfg->is_de3) {
> +     regmap_write(mixer->engine.regs, SUN8I_SCALER_VSU_CTRL(base),
> +                  SUN8I_SCALER_VSU_CTRL_EN);
> +
> +     if (mixer->cfg->de_type >= sun8i_mixer_de3) {
>               u32 val;
>  
>               if (format->hsub == 1 && format->vsub == 1)
> @@ -994,6 +1021,16 @@ void sun8i_vi_scaler_setup(struct sun8i_mixer *mixer, 
> int layer,
>                    SUN8I_SCALER_VSU_CHPHASE(base), chphase);
>       regmap_write(mixer->engine.regs,
>                    SUN8I_SCALER_VSU_CVPHASE(base), cvphase);
> -     sun8i_vi_scaler_set_coeff(mixer->engine.regs, base,
> -                               hscale, vscale, format);
> +
> +     if (sun8i_vi_scaler_is_vi_plane(mixer, layer))
> +             sun8i_vi_scaler_set_coeff_vi(mixer->engine.regs, base,
> +                                          hscale, vscale, format);
> +     else
> +             sun8i_vi_scaler_set_coeff_ui(mixer->engine.regs, base,
> +                                          hscale, vscale, format);
> +
> +     if (mixer->cfg->de_type <= sun8i_mixer_de3)
> +             regmap_write(mixer->engine.regs, SUN8I_SCALER_VSU_CTRL(base),
> +                          SUN8I_SCALER_VSU_CTRL_EN |
> +                          SUN8I_SCALER_VSU_CTRL_COEFF_RDY);
>  }
> diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h 
> b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h
> index 68f6593b369ab..9fe056a2c1c79 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h
> +++ b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h
> @@ -34,6 +34,7 @@
>  #define SUN50I_SCALER_VSU_EDSCL_CTRL(base)           ((base) + 0x28)
>  #define SUN50I_SCALER_VSU_ANGLE_THR(base)            ((base) + 0x2c)
>  #define SUN8I_SCALER_VSU_OUTSIZE(base)               ((base) + 0x40)
> +#define SUN50I_SCALER_VSU_GLB_ALPHA(base)    ((base) + 0x44)
>  #define SUN8I_SCALER_VSU_YINSIZE(base)               ((base) + 0x80)
>  #define SUN8I_SCALER_VSU_YHSTEP(base)                ((base) + 0x88)
>  #define SUN8I_SCALER_VSU_YVSTEP(base)                ((base) + 0x8c)
> @@ -69,7 +70,7 @@
>  #define SUN50I_SCALER_VSU_ANGLE_SHIFT(x)             (((x) << 16) & 0xF)
>  #define SUN50I_SCALER_VSU_ANGLE_OFFSET(x)            ((x) & 0xFF)
>  
> -void sun8i_vi_scaler_enable(struct sun8i_mixer *mixer, int layer, bool 
> enable);
> +void sun8i_vi_scaler_disable(struct sun8i_mixer *mixer, int layer);
>  void sun8i_vi_scaler_setup(struct sun8i_mixer *mixer, int layer,
>                          u32 src_w, u32 src_h, u32 dst_w, u32 dst_h,
>                          u32 hscale, u32 vscale, u32 hphase, u32 vphase,

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