The CMDQ (Command Queue) in MT8183 is used to help
update all relevant display controller registers
with critical time limation.
This patch add cmdq interface in ddp_comp interface,
let all ddp_comp interface can support cpu/cmdq function
at the same time.

Signed-off-by: YT Shen <yt.s...@mediatek.com>
Signed-off-by: CK Hu <ck...@mediatek.com>
Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
Signed-off-by: Bibby Hsieh <bibby.hs...@mediatek.com>
Signed-off-by: Yongqiang Niu <yongqiang....@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_disp_color.c   |   7 +-
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c     |  78 +++++++-------
 drivers/gpu/drm/mediatek/mtk_disp_rdma.c    |  66 ++++++------
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 110 ++++++++++++++------
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  53 ++++++----
 5 files changed, 187 insertions(+), 127 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c 
b/drivers/gpu/drm/mediatek/mtk_disp_color.c
index f33d98b356d6..c5d3e3cf8ad5 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_color.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c
@@ -9,6 +9,7 @@
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
 
 #include "mtk_drm_crtc.h"
 #include "mtk_drm_ddp_comp.h"
@@ -45,12 +46,12 @@ static inline struct mtk_disp_color *comp_to_color(struct 
mtk_ddp_comp *comp)
 
 static void mtk_color_config(struct mtk_ddp_comp *comp, unsigned int w,
                             unsigned int h, unsigned int vrefresh,
-                            unsigned int bpc)
+                            unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
        struct mtk_disp_color *color = comp_to_color(comp);
 
-       writel(w, comp->regs + DISP_COLOR_WIDTH(color));
-       writel(h, comp->regs + DISP_COLOR_HEIGHT(color));
+       mtk_ddp_write(cmdq_pkt, w, comp, DISP_COLOR_WIDTH(color));
+       mtk_ddp_write(cmdq_pkt, h, comp, DISP_COLOR_HEIGHT(color));
 }
 
 static void mtk_color_start(struct mtk_ddp_comp *comp)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c 
b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 94c80c215c6e..f11c785199d3 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -9,6 +9,7 @@
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
 
 #include "mtk_drm_crtc.h"
 #include "mtk_drm_ddp_comp.h"
@@ -120,14 +121,15 @@ static void mtk_ovl_stop(struct mtk_ddp_comp *comp)
 
 static void mtk_ovl_config(struct mtk_ddp_comp *comp, unsigned int w,
                           unsigned int h, unsigned int vrefresh,
-                          unsigned int bpc)
+                          unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
        if (w != 0 && h != 0)
-               writel_relaxed(h << 16 | w, comp->regs + DISP_REG_OVL_ROI_SIZE);
-       writel_relaxed(0x0, comp->regs + DISP_REG_OVL_ROI_BGCLR);
+               mtk_ddp_write_relaxed(cmdq_pkt, h << 16 | w, comp,
+               DISP_REG_OVL_ROI_SIZE);
+       mtk_ddp_write_relaxed(cmdq_pkt, 0x0, comp, DISP_REG_OVL_ROI_BGCLR);
 
-       writel(0x1, comp->regs + DISP_REG_OVL_RST);
-       writel(0x0, comp->regs + DISP_REG_OVL_RST);
+       mtk_ddp_write(cmdq_pkt, 0x1, comp, DISP_REG_OVL_RST);
+       mtk_ddp_write(cmdq_pkt, 0x0, comp, DISP_REG_OVL_RST);
 }
 
 static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp)
@@ -137,7 +139,8 @@ static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp 
*comp)
        return ovl->data->layer_nr;
 }
 
-static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx)
+static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx,
+                            struct cmdq_pkt *cmdq_pkt)
 {
        unsigned int reg;
        unsigned int gmc_thrshd_l;
@@ -145,8 +148,8 @@ static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, 
unsigned int idx)
        unsigned int gmc_value;
        struct mtk_disp_ovl *ovl = comp_to_ovl(comp);
 
-       writel(0x1, comp->regs + DISP_REG_OVL_RDMA_CTRL(idx));
-
+       mtk_ddp_write(cmdq_pkt, 0x1, comp,
+                     DISP_REG_OVL_RDMA_CTRL(idx));
        gmc_thrshd_l = GMC_THRESHOLD_LOW >>
                      (GMC_THRESHOLD_BITS - ovl->data->gmc_bits);
        gmc_thrshd_h = GMC_THRESHOLD_HIGH >>
@@ -156,22 +159,19 @@ static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, 
unsigned int idx)
        else
                gmc_value = gmc_thrshd_l | gmc_thrshd_l << 8 |
                            gmc_thrshd_h << 16 | gmc_thrshd_h << 24;
-       writel(gmc_value, comp->regs + DISP_REG_OVL_RDMA_GMC(idx));
-
-       reg = readl(comp->regs + DISP_REG_OVL_SRC_CON);
-       reg = reg | BIT(idx);
-       writel(reg, comp->regs + DISP_REG_OVL_SRC_CON);
+       mtk_ddp_write(cmdq_pkt, gmc_value,
+                     comp, DISP_REG_OVL_RDMA_GMC(idx));
+       mtk_ddp_write_mask(cmdq_pkt, BIT(idx), comp,
+                           DISP_REG_OVL_SRC_CON, BIT(idx));
 }
 
-static void mtk_ovl_layer_off(struct mtk_ddp_comp *comp, unsigned int idx)
+static void mtk_ovl_layer_off(struct mtk_ddp_comp *comp, unsigned int idx,
+                             struct cmdq_pkt *cmdq_pkt)
 {
-       unsigned int reg;
-
-       reg = readl(comp->regs + DISP_REG_OVL_SRC_CON);
-       reg = reg & ~BIT(idx);
-       writel(reg, comp->regs + DISP_REG_OVL_SRC_CON);
-
-       writel(0x0, comp->regs + DISP_REG_OVL_RDMA_CTRL(idx));
+       mtk_ddp_write_mask(cmdq_pkt, 0, comp,
+                           DISP_REG_OVL_SRC_CON, BIT(idx));
+       mtk_ddp_write(cmdq_pkt, 0, comp,
+                      DISP_REG_OVL_RDMA_CTRL(idx));
 }
 
 static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt)
@@ -211,7 +211,8 @@ static unsigned int ovl_fmt_convert(struct mtk_disp_ovl 
*ovl, unsigned int fmt)
 }
 
 static void mtk_ovl_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
-                                struct mtk_plane_state *state)
+                                struct mtk_plane_state *state,
+                                struct cmdq_pkt *cmdq_pkt)
 {
        struct mtk_disp_ovl *ovl = comp_to_ovl(comp);
        struct mtk_plane_pending_state *pending = &state->pending;
@@ -223,38 +224,37 @@ static void mtk_ovl_layer_config(struct mtk_ddp_comp 
*comp, unsigned int idx,
        unsigned int con;
 
        if (!pending->enable)
-               mtk_ovl_layer_off(comp, idx);
+               mtk_ovl_layer_off(comp, idx, cmdq_pkt);
 
        con = ovl_fmt_convert(ovl, fmt);
        if (idx != 0)
                con |= OVL_CON_AEN | OVL_CON_ALPHA;
 
-       writel_relaxed(con, comp->regs + DISP_REG_OVL_CON(idx));
-       writel_relaxed(pitch, comp->regs + DISP_REG_OVL_PITCH(idx));
-       writel_relaxed(src_size, comp->regs + DISP_REG_OVL_SRC_SIZE(idx));
-       writel_relaxed(offset, comp->regs + DISP_REG_OVL_OFFSET(idx));
-       writel_relaxed(addr, comp->regs + DISP_REG_OVL_ADDR(ovl, idx));
+       mtk_ddp_write_relaxed(cmdq_pkt, con, comp,
+                             DISP_REG_OVL_CON(idx));
+       mtk_ddp_write_relaxed(cmdq_pkt, pitch, comp,
+                             DISP_REG_OVL_PITCH(idx));
+       mtk_ddp_write_relaxed(cmdq_pkt, src_size, comp,
+                             DISP_REG_OVL_SRC_SIZE(idx));
+       mtk_ddp_write_relaxed(cmdq_pkt, offset, comp,
+                             DISP_REG_OVL_OFFSET(idx));
+       mtk_ddp_write_relaxed(cmdq_pkt, addr, comp,
+                             DISP_REG_OVL_ADDR(ovl, idx));
 
        if (pending->enable)
-               mtk_ovl_layer_on(comp, idx);
+               mtk_ovl_layer_on(comp, idx, cmdq_pkt);
 }
 
 static void mtk_ovl_bgclr_in_on(struct mtk_ddp_comp *comp)
 {
-       unsigned int reg;
-
-       reg = readl(comp->regs + DISP_REG_OVL_DATAPATH_CON);
-       reg = reg | OVL_BGCLR_SEL_IN;
-       writel(reg, comp->regs + DISP_REG_OVL_DATAPATH_CON);
+       mtk_ddp_write_mask(NULL, OVL_BGCLR_SEL_IN, comp,
+                          DISP_REG_OVL_DATAPATH_CON, OVL_BGCLR_SEL_IN);
 }
 
 static void mtk_ovl_bgclr_in_off(struct mtk_ddp_comp *comp)
 {
-       unsigned int reg;
-
-       reg = readl(comp->regs + DISP_REG_OVL_DATAPATH_CON);
-       reg = reg & ~OVL_BGCLR_SEL_IN;
-       writel(reg, comp->regs + DISP_REG_OVL_DATAPATH_CON);
+       mtk_ddp_write_mask(NULL, 0, comp,
+                          DISP_REG_OVL_DATAPATH_CON, OVL_BGCLR_SEL_IN);
 }
 
 static const struct mtk_ddp_comp_funcs mtk_disp_ovl_funcs = {
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c 
b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 24945fec00b1..6df372dac3e3 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -9,6 +9,7 @@
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
 
 #include "mtk_drm_crtc.h"
 #include "mtk_drm_ddp_comp.h"
@@ -86,23 +87,14 @@ static irqreturn_t mtk_disp_rdma_irq_handler(int irq, void 
*dev_id)
        return IRQ_HANDLED;
 }
 
-static void rdma_update_bits(struct mtk_ddp_comp *comp, unsigned int reg,
-                            unsigned int mask, unsigned int val)
-{
-       unsigned int tmp = readl(comp->regs + reg);
-
-       tmp = (tmp & ~mask) | (val & mask);
-       writel(tmp, comp->regs + reg);
-}
-
 static void mtk_rdma_enable_vblank(struct mtk_ddp_comp *comp,
                                   struct drm_crtc *crtc)
 {
        struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
 
        rdma->crtc = crtc;
-       rdma_update_bits(comp, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT,
-                        RDMA_FRAME_END_INT);
+       mtk_ddp_write_mask(NULL, RDMA_FRAME_END_INT, comp,
+                          DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT);
 }
 
 static void mtk_rdma_disable_vblank(struct mtk_ddp_comp *comp)
@@ -110,31 +102,35 @@ static void mtk_rdma_disable_vblank(struct mtk_ddp_comp 
*comp)
        struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
 
        rdma->crtc = NULL;
-       rdma_update_bits(comp, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT, 0);
+       mtk_ddp_write_mask(NULL, 0, comp,
+                          DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT);
 }
 
 static void mtk_rdma_start(struct mtk_ddp_comp *comp)
 {
-       rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN,
-                        RDMA_ENGINE_EN);
+       mtk_ddp_write_mask(NULL, RDMA_ENGINE_EN, comp,
+                          DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN);
 }
 
 static void mtk_rdma_stop(struct mtk_ddp_comp *comp)
 {
-       rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN, 0);
+       mtk_ddp_write_mask(NULL, 0, comp,
+                          DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN);
 }
 
 static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width,
                            unsigned int height, unsigned int vrefresh,
-                           unsigned int bpc)
+                           unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
        unsigned int threshold;
        unsigned int reg;
        struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
        u32 rdma_fifo_size;
 
-       rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, 0xfff, width);
-       rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_1, 0xfffff, height);
+       mtk_ddp_write_mask(cmdq_pkt, width, comp,
+                           DISP_REG_RDMA_SIZE_CON_0, 0xfff);
+       mtk_ddp_write_mask(cmdq_pkt, height, comp,
+                           DISP_REG_RDMA_SIZE_CON_1, 0xfffff);
 
        if (rdma->fifo_size)
                rdma_fifo_size = rdma->fifo_size;
@@ -151,7 +147,7 @@ static void mtk_rdma_config(struct mtk_ddp_comp *comp, 
unsigned int width,
        reg = RDMA_FIFO_UNDERFLOW_EN |
              RDMA_FIFO_PSEUDO_SIZE(rdma_fifo_size) |
              RDMA_OUTPUT_VALID_FIFO_THRESHOLD(threshold);
-       writel(reg, comp->regs + DISP_REG_RDMA_FIFO_CON);
+       mtk_ddp_write(cmdq_pkt, reg, comp, DISP_REG_RDMA_FIFO_CON);
 }
 
 static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma,
@@ -197,7 +193,8 @@ static unsigned int mtk_rdma_layer_nr(struct mtk_ddp_comp 
*comp)
 }
 
 static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
-                                 struct mtk_plane_state *state)
+                                 struct mtk_plane_state *state,
+                                 struct cmdq_pkt *cmdq_pkt)
 {
        struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
        struct mtk_plane_pending_state *pending = &state->pending;
@@ -207,24 +204,27 @@ static void mtk_rdma_layer_config(struct mtk_ddp_comp 
*comp, unsigned int idx,
        unsigned int con;
 
        con = rdma_fmt_convert(rdma, fmt);
-       writel_relaxed(con, comp->regs + DISP_RDMA_MEM_CON);
+       mtk_ddp_write_relaxed(cmdq_pkt, con, comp, DISP_RDMA_MEM_CON);
 
        if (fmt == DRM_FORMAT_UYVY || fmt == DRM_FORMAT_YUYV) {
-               rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0,
-                                RDMA_MATRIX_ENABLE, RDMA_MATRIX_ENABLE);
-               rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0,
-                                RDMA_MATRIX_INT_MTX_SEL,
-                                RDMA_MATRIX_INT_MTX_BT601_to_RGB);
+               mtk_ddp_write_mask(cmdq_pkt, RDMA_MATRIX_ENABLE, comp,
+                                  DISP_REG_RDMA_SIZE_CON_0,
+                                  RDMA_MATRIX_ENABLE);
+               mtk_ddp_write_mask(cmdq_pkt, RDMA_MATRIX_INT_MTX_BT601_to_RGB,
+                                  comp, DISP_REG_RDMA_SIZE_CON_0,
+                                  RDMA_MATRIX_INT_MTX_SEL);
        } else {
-               rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0,
-                                RDMA_MATRIX_ENABLE, 0);
+               mtk_ddp_write_mask(cmdq_pkt, 0, comp,
+                                  DISP_REG_RDMA_SIZE_CON_0,
+                                  RDMA_MATRIX_ENABLE);
        }
+       mtk_ddp_write_relaxed(cmdq_pkt, addr, comp, DISP_RDMA_MEM_START_ADDR);
+       mtk_ddp_write_relaxed(cmdq_pkt, pitch, comp, DISP_RDMA_MEM_SRC_PITCH);
+       mtk_ddp_write(cmdq_pkt, RDMA_MEM_GMC, comp,
+                     DISP_RDMA_MEM_GMC_SETTING_0);
+       mtk_ddp_write_mask(cmdq_pkt, RDMA_MODE_MEMORY, comp,
+                          DISP_REG_RDMA_GLOBAL_CON, RDMA_MODE_MEMORY);
 
-       writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR);
-       writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH);
-       writel(RDMA_MEM_GMC, comp->regs + DISP_RDMA_MEM_GMC_SETTING_0);
-       rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON,
-                        RDMA_MODE_MEMORY, RDMA_MODE_MEMORY);
 }
 
 static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c 
b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 8fea98578bc8..76416c1cbb28 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -13,6 +13,7 @@
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <drm/drmP.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
 #include "mtk_drm_drv.h"
 #include "mtk_drm_plane.h"
 #include "mtk_drm_ddp_comp.h"
@@ -76,36 +77,76 @@
 #define DITHER_ADD_LSHIFT_G(x)                 (((x) & 0x7) << 4)
 #define DITHER_ADD_RSHIFT_G(x)                 (((x) & 0x7) << 0)
 
+void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+                  struct mtk_ddp_comp *comp, unsigned int offset)
+{
+       if (IS_ENABLED(CONFIG_MTK_CMDQ) && cmdq_pkt)
+               cmdq_pkt_write(cmdq_pkt, comp->subsys,
+                              comp->regs_pa + offset, value);
+       else
+               writel(value, comp->regs + offset);
+}
+
+void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+                          struct mtk_ddp_comp *comp,
+                          unsigned int offset)
+{
+       if (IS_ENABLED(CONFIG_MTK_CMDQ) && cmdq_pkt)
+               cmdq_pkt_write(cmdq_pkt, comp->subsys,
+                              comp->regs_pa + offset, value);
+       else
+               writel_relaxed(value, comp->regs + offset);
+}
+
+void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt,
+                       unsigned int value,
+                       struct mtk_ddp_comp *comp,
+                       unsigned int offset,
+                       unsigned int mask)
+{
+       if (IS_ENABLED(CONFIG_MTK_CMDQ) && cmdq_pkt) {
+               cmdq_pkt_write_mask(cmdq_pkt, comp->subsys,
+                                   comp->regs_pa + offset, value, mask);
+       } else {
+               u32 tmp = readl(comp->regs + offset);
+
+               tmp = (tmp & ~mask) | (value & mask);
+               writel(tmp, comp->regs + offset);
+       }
+}
+
 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
-                   unsigned int CFG)
+                   unsigned int CFG, struct cmdq_pkt *cmdq_pkt)
 {
        /* If bpc equal to 0, the dithering function didn't be enabled */
        if (bpc == 0)
                return;
 
        if (bpc >= MTK_MIN_BPC) {
-               writel(0, comp->regs + DISP_DITHER_5);
-               writel(0, comp->regs + DISP_DITHER_7);
-               writel(DITHER_LSB_ERR_SHIFT_R(MTK_MAX_BPC - bpc) |
-                      DITHER_ADD_LSHIFT_R(MTK_MAX_BPC - bpc) |
-                      DITHER_NEW_BIT_MODE,
-                      comp->regs + DISP_DITHER_15);
-               writel(DITHER_LSB_ERR_SHIFT_B(MTK_MAX_BPC - bpc) |
-                      DITHER_ADD_LSHIFT_B(MTK_MAX_BPC - bpc) |
-                      DITHER_LSB_ERR_SHIFT_G(MTK_MAX_BPC - bpc) |
-                      DITHER_ADD_LSHIFT_G(MTK_MAX_BPC - bpc),
-                      comp->regs + DISP_DITHER_16);
-               writel(DISP_DITHERING, comp->regs + CFG);
+               mtk_ddp_write(cmdq_pkt, 0, comp, DISP_DITHER_5);
+               mtk_ddp_write(cmdq_pkt, 0, comp, DISP_DITHER_7);
+               mtk_ddp_write(cmdq_pkt,
+                             DITHER_LSB_ERR_SHIFT_R(MTK_MAX_BPC - bpc) |
+                             DITHER_ADD_LSHIFT_R(MTK_MAX_BPC - bpc) |
+                             DITHER_NEW_BIT_MODE,
+                             comp, DISP_DITHER_15);
+               mtk_ddp_write(cmdq_pkt,
+                             DITHER_LSB_ERR_SHIFT_B(MTK_MAX_BPC - bpc) |
+                             DITHER_ADD_LSHIFT_B(MTK_MAX_BPC - bpc) |
+                             DITHER_LSB_ERR_SHIFT_G(MTK_MAX_BPC - bpc) |
+                             DITHER_ADD_LSHIFT_G(MTK_MAX_BPC - bpc),
+                             comp, DISP_DITHER_16);
+               mtk_ddp_write(cmdq_pkt, DISP_DITHERING, comp, CFG);
        }
 }
 
 static void mtk_od_config(struct mtk_ddp_comp *comp, unsigned int w,
                          unsigned int h, unsigned int vrefresh,
-                         unsigned int bpc)
+                         unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
-       writel(w << 16 | h, comp->regs + DISP_OD_SIZE);
-       writel(OD_RELAYMODE, comp->regs + DISP_OD_CFG);
-       mtk_dither_set(comp, bpc, DISP_OD_CFG);
+       mtk_ddp_write(cmdq_pkt, w << 16 | h, comp, DISP_OD_SIZE);
+       mtk_ddp_write(cmdq_pkt, OD_RELAYMODE, comp, DISP_OD_CFG);
+       mtk_dither_set(comp, bpc, DISP_OD_CFG, cmdq_pkt);
 }
 
 static void mtk_od_start(struct mtk_ddp_comp *comp)
@@ -120,9 +161,9 @@ static void mtk_ufoe_start(struct mtk_ddp_comp *comp)
 
 static void mtk_aal_config(struct mtk_ddp_comp *comp, unsigned int w,
                           unsigned int h, unsigned int vrefresh,
-                          unsigned int bpc)
+                          unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
-       writel(h << 16 | w, comp->regs + DISP_AAL_SIZE);
+       mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_AAL_SIZE);
 }
 
 static void mtk_aal_start(struct mtk_ddp_comp *comp)
@@ -137,10 +178,10 @@ static void mtk_aal_stop(struct mtk_ddp_comp *comp)
 
 static void mtk_ccorr_config(struct mtk_ddp_comp *comp, unsigned int w,
                             unsigned int h, unsigned int vrefresh,
-                            unsigned int bpc)
+                            unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
-       writel(h << 16 | w, comp->regs + DISP_CCORR_SIZE);
-       writel(CCORR_RELAY_MODE, comp->regs + DISP_CCORR_CFG);
+       mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_CCORR_SIZE);
+       mtk_ddp_write(cmdq_pkt, CCORR_RELAY_MODE, comp, DISP_CCORR_CFG);
 }
 
 static void mtk_ccorr_start(struct mtk_ddp_comp *comp)
@@ -155,10 +196,10 @@ static void mtk_ccorr_stop(struct mtk_ddp_comp *comp)
 
 static void mtk_dither_config(struct mtk_ddp_comp *comp, unsigned int w,
                              unsigned int h, unsigned int vrefresh,
-                             unsigned int bpc)
+                             unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
-       writel(h << 16 | w, comp->regs + DISP_DITHER_SIZE);
-       writel(DITHER_RELAY_MODE, comp->regs + DISP_DITHER_CFG);
+       mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_DITHER_SIZE);
+       mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, comp, DISP_DITHER_CFG);
 }
 
 static void mtk_dither_start(struct mtk_ddp_comp *comp)
@@ -173,10 +214,10 @@ static void mtk_dither_stop(struct mtk_ddp_comp *comp)
 
 static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w,
                             unsigned int h, unsigned int vrefresh,
-                            unsigned int bpc)
+                            unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
-       writel(h << 16 | w, comp->regs + DISP_GAMMA_SIZE);
-       mtk_dither_set(comp, bpc, DISP_GAMMA_CFG);
+       mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE);
+       mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt);
 }
 
 static void mtk_gamma_start(struct mtk_ddp_comp *comp)
@@ -190,24 +231,25 @@ static void mtk_gamma_stop(struct mtk_ddp_comp *comp)
 }
 
 static void mtk_gamma_set(struct mtk_ddp_comp *comp,
-                         struct drm_crtc_state *state)
+                         struct drm_crtc_state *state,
+                         struct cmdq_pkt *cmdq_pkt)
 {
-       unsigned int i, reg;
+       unsigned int i;
        struct drm_color_lut *lut;
        void __iomem *lut_base;
        u32 word;
 
        if (state->gamma_lut) {
-               reg = readl(comp->regs + DISP_GAMMA_CFG);
-               reg = reg | GAMMA_LUT_EN;
-               writel(reg, comp->regs + DISP_GAMMA_CFG);
+               mtk_ddp_write_mask(cmdq_pkt, GAMMA_LUT_EN, comp,
+                                  DISP_GAMMA_CFG, GAMMA_LUT_EN);
                lut_base = comp->regs + DISP_GAMMA_LUT;
                lut = (struct drm_color_lut *)state->gamma_lut->data;
                for (i = 0; i < MTK_LUT_SIZE; i++) {
                        word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) +
                                (((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) +
                                ((lut[i].blue >> 6) & LUT_10BIT_MASK);
-                       writel(word, (lut_base + i * 4));
+                       mtk_ddp_write(cmdq_pkt, word, comp,
+                                     (unsigned int)(lut_base + i * 4));
                }
        }
 }
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h 
b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 268d416081da..6bbc35f92815 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -69,21 +69,26 @@ enum mtk_ddp_comp_id {
 };
 
 struct mtk_ddp_comp;
-
+struct cmdq_pkt;
 struct mtk_ddp_comp_funcs {
        void (*config)(struct mtk_ddp_comp *comp, unsigned int w,
-                      unsigned int h, unsigned int vrefresh, unsigned int bpc);
+                      unsigned int h, unsigned int vrefresh,
+                      unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
        void (*start)(struct mtk_ddp_comp *comp);
        void (*stop)(struct mtk_ddp_comp *comp);
        void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
        void (*disable_vblank)(struct mtk_ddp_comp *comp);
        unsigned int (*layer_nr)(struct mtk_ddp_comp *comp);
-       void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
-       void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
+       void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx,
+                        struct cmdq_pkt *cmdq_pkt);
+       void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx,
+                         struct cmdq_pkt *cmdq_pkt);
        void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
-                            struct mtk_plane_state *state);
+                            struct mtk_plane_state *state,
+                            struct cmdq_pkt *cmdq_pkt);
        void (*gamma_set)(struct mtk_ddp_comp *comp,
-                         struct drm_crtc_state *state);
+                         struct drm_crtc_state *state,
+                         struct cmdq_pkt *cmdq_pkt);
        void (*bgclr_in_on)(struct mtk_ddp_comp *comp);
        void (*bgclr_in_off)(struct mtk_ddp_comp *comp);
 };
@@ -98,10 +103,11 @@ struct mtk_ddp_comp {
 
 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
                                       unsigned int w, unsigned int h,
-                                      unsigned int vrefresh, unsigned int bpc)
+                                      unsigned int vrefresh, unsigned int bpc,
+                                      struct cmdq_pkt *cmdq_pkt)
 {
        if (comp->funcs && comp->funcs->config)
-               comp->funcs->config(comp, w, h, vrefresh, bpc);
+               comp->funcs->config(comp, w, h, vrefresh, bpc, cmdq_pkt);
 }
 
 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
@@ -138,32 +144,36 @@ static inline unsigned int mtk_ddp_comp_layer_nr(struct 
mtk_ddp_comp *comp)
 }
 
 static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
-                                        unsigned int idx)
+                                        unsigned int idx,
+                                        struct cmdq_pkt *cmdq_pkt)
 {
        if (comp->funcs && comp->funcs->layer_on)
-               comp->funcs->layer_on(comp, idx);
+               comp->funcs->layer_on(comp, idx, cmdq_pkt);
 }
 
 static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp,
-                                         unsigned int idx)
+                                         unsigned int idx,
+                                         struct cmdq_pkt *cmdq_pkt)
 {
        if (comp->funcs && comp->funcs->layer_off)
-               comp->funcs->layer_off(comp, idx);
+               comp->funcs->layer_off(comp, idx, cmdq_pkt);
 }
 
 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
                                             unsigned int idx,
-                                            struct mtk_plane_state *state)
+                                            struct mtk_plane_state *state,
+                                            struct cmdq_pkt *cmdq_pkt)
 {
        if (comp->funcs && comp->funcs->layer_config)
-               comp->funcs->layer_config(comp, idx, state);
+               comp->funcs->layer_config(comp, idx, state, cmdq_pkt);
 }
 
 static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
-                                    struct drm_crtc_state *state)
+                                    struct drm_crtc_state *state,
+                                    struct cmdq_pkt *cmdq_pkt)
 {
        if (comp->funcs && comp->funcs->gamma_set)
-               comp->funcs->gamma_set(comp, state);
+               comp->funcs->gamma_set(comp, state, cmdq_pkt);
 }
 
 static inline void mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp *comp)
@@ -186,6 +196,13 @@ int mtk_ddp_comp_init(struct device *dev, struct 
device_node *comp_node,
 int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
 void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp 
*comp);
 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
-                   unsigned int CFG);
-
+                   unsigned int CFG, struct cmdq_pkt *cmdq_pkt);
+enum mtk_ddp_comp_type mtk_ddp_comp_get_type(enum mtk_ddp_comp_id comp_id);
+void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+                  struct mtk_ddp_comp *comp, unsigned int offset);
+void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+                          struct mtk_ddp_comp *comp, unsigned int offset);
+void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+                       struct mtk_ddp_comp *comp, unsigned int offset,
+                       unsigned int mask);
 #endif /* MTK_DRM_DDP_COMP_H */
-- 
2.18.0

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