From: Lad Prabhakar
All the RZ/G2L DU specific components are located under the rz-du folder,
so it makes sense to move the RZ/G2L MIPI DSI driver there instead of
keeping it in the rcar-du folder. This change improves the organization
and modularity of the driver configuration by grouping
From: Lad Prabhakar
Add clock and reset entries for the DSI and LCDC peripherals.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v1->v2:
- No changes
---
drivers/clk/renesas/r9a09g057-cpg.c | 63 +
drivers/
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_16BPP` flag in `rzg2l_mipi_dsi_hw_info`
to indicate support for 16BPP pixel formats. The RZ/V2H(P) SoC supports
16BPP, whereas this feature is missing on the RZ/G2L SoC.
Update the `mipi_dsi_host_attach()` function to check this flag before
From: Lad Prabhakar
Hi All,
This patch series adds support for the Display Unit (DU) and MIPI DSI
interface on the Renesas RZ/V2H(P) SoC. The initial patches add PLLDSI
clocks and reset entries for the DSI and LCDC and the later patches add
support for the DU and DSI drivers. The DU block is
From: Lad Prabhakar
Pass the HSFREQ in milli-Hz to the `dphy_init()` callback to improve
precision, especially for the RZ/V2H(P) SoC, where PLL dividers require
high accuracy.
These changes prepare the driver for upcoming RZ/V2H(P) SoC support.
Co-developed-by: Fabrizio Castro
Signed-off-by
From: Lad Prabhakar
Add support for PLLDSI and PLLDSI divider clocks.
The `renesas-rzv2h-dsi.h` header file is added to share the PLL divider
algorithm between the CPG and DSI drivers.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v1->
From: Lad Prabhakar
The MIPI DSI interface on the RZ/V2H(P) SoC is nearly identical to that of
the RZ/G2L SoC. While the LINK registers are the same for both SoCs, the
D-PHY registers differ. Additionally, the number of resets for DSI on
RZ/V2H(P) is two compared to three on the RZ/G2L.
To
From: Lad Prabhakar
In preparation for adding support for the Renesas RZ/V2H(P) SoC, this patch
introduces a mechanism to pass SoC-specific information via OF data in the
DSI driver. This enables the driver to adapt dynamically to various
SoC-specific requirements without hardcoding
From: Lad Prabhakar
The DU block on the RZ/V2H(P) SoC is identical to the one found on the
RZ/G2L SoC. However, it only supports the DSI interface, whereas the
RZ/G2L supports both DSI and DPI interfaces.
Due to this difference, a SoC-specific compatible string
'renesas,r9a09g057-du'
From: Lad Prabhakar
The VCLK range for Renesas RZ/G2L SoC is 148.5 MHz to 5.803 MHz. Add a
minimum clock check in the mode_valid callback to ensure that the clock
value does not fall below the valid range.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad
From: Lad Prabhakar
Simplify the high-speed clock frequency (HSFREQ) calculation by removing
the redundant multiplication and division by 8. The updated equation:
hsfreq = (mode->clock * bpp) / (dsi->lanes);
produces the same result while improving readability and clarity.
Additi
From: Lad Prabhakar
Introduce the `dphy_late_init` callback in `rzg2l_mipi_dsi_hw_info` to
allow additional D-PHY register configurations after enabling data and
clock lanes. This is required for the RZ/V2H(P) SoC but not for the
RZ/G2L SoC.
Modify `rzg2l_mipi_dsi_startup()` to invoke
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_LPCLK` feature flag in
`rzg2l_mipi_dsi_hw_info` to indicate the need for LPCLK configuration.
On the RZ/V2H(P) SoC, the LPCLK clock rate influences the required
DPHY register configuration, whereas on the RZ/G2L SoC, this clock
is not
From: Lad Prabhakar
Add DSI support for Renesas RZ/V2H(P) SoC.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v1->v2:
- Dropped unused macros
- Added missing LPCLK flag to rzvv2h info
---
.../gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c|
From: Lad Prabhakar
Introduce `dphy_conf_clks` and `dphy_mode_clk_check` callbacks in
`rzg2l_mipi_dsi_hw_info` to configure the VCLK and validate
supported display modes.
On the RZ/V2H(P) SoC, the DSI PLL dividers need to be as accurate as
possible. To ensure compatibility with both RZ/G2L and
From: Lad Prabhakar
Pass the HSFREQ in milli-Hz to the `dphy_init()` callback to improve
precision, especially for the RZ/V2H(P) SoC, where PLL dividers require
high accuracy.
These changes prepare the driver for upcoming RZ/V2H(P) SoC support.
Co-developed-by: Fabrizio Castro
Signed-off-by
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_LPCLK` feature flag in
`rzg2l_mipi_dsi_hw_info` to indicate the need for LPCLK configuration.
On the RZ/V2H(P) SoC, the LPCLK clock rate influences the required
DPHY register configuration, whereas on the RZ/G2L SoC, this clock
is not
From: Lad Prabhakar
Add clock and reset entries for the DSI and LCDC peripherals.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v3->v4:
- No changes
v2->v3:
- Reverted CSDIV0_DIVCTL2() to use DDIV_PACK()
- Renamed plleth_lpcl
From: Lad Prabhakar
The VCLK range for Renesas RZ/G2L SoC is 148.5 MHz to 5.803 MHz. Add a
minimum clock check in the mode_valid callback to ensure that the clock
value does not fall below the valid range.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad
From: Lad Prabhakar
From: Lad Prabhakar
Hi All,
This patch series adds support for the Display Unit (DU) and MIPI DSI
interface on the Renesas RZ/V2H(P) SoC. The initial patches add PLLDSI
clocks and reset entries for the DSI and LCDC and the later patches add
support for the DU and DSI
From: Lad Prabhakar
The MIPI DSI interface on the RZ/V2H(P) SoC is nearly identical to that of
the RZ/G2L SoC. While the LINK registers are the same for both SoCs, the
D-PHY registers differ. Additionally, the number of resets for DSI on
RZ/V2H(P) is two compared to three on the RZ/G2L.
To
From: Lad Prabhakar
Update the RZ/G2L MIPI DSI driver to calculate HSFREQ using the actual
VCLK rate instead of the mode clock. The relationship between HSCLK and
VCLK is:
vclk * bpp <= hsclk * 8 * lanes
Retrieve the VCLK rate using `clk_get_rate(dsi->vclk)`, ensuring that
From: Lad Prabhakar
Introduce the `dphy_late_init` callback in `rzg2l_mipi_dsi_hw_info` to
allow additional D-PHY register configurations after enabling data and
clock lanes. This is required for the RZ/V2H(P) SoC but not for the
RZ/G2L SoC.
Modify `rzg2l_mipi_dsi_startup()` to invoke
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_16BPP` flag in `rzg2l_mipi_dsi_hw_info`
to indicate support for 16BPP pixel formats. The RZ/V2H(P) SoC supports
16BPP, whereas this feature is missing on the RZ/G2L SoC.
Update the `mipi_dsi_host_attach()` function to check this flag before
From: Lad Prabhakar
The DU block on the RZ/V2H(P) SoC is identical to the one found on the
RZ/G2L SoC. However, it only supports the DSI interface, whereas the
RZ/G2L supports both DSI and DPI interfaces.
Due to this difference, a SoC-specific compatible string
'renesas,r9a09g057-du'
From: Lad Prabhakar
In preparation for adding support for the Renesas RZ/V2H(P) SoC, this patch
introduces a mechanism to pass SoC-specific information via OF data in the
DSI driver. This enables the driver to adapt dynamically to various
SoC-specific requirements without hardcoding
From: Lad Prabhakar
The LCD controller (LCDC) on the RZ/V2H(P) SoC is composed of Frame
Compression Processor (FCPVD), Video Signal Processor (VSPD), and
Display Unit (DU).
There is one LCDC unit available on the RZ/V2H(P) SoC which is connected
to the DSI.
Signed-off-by: Lad Prabhakar
---
v3
From: Lad Prabhakar
Simplify the high-speed clock frequency (HSFREQ) calculation by removing
the redundant multiplication and division by 8. The updated equation:
hsfreq = (mode->clock * bpp) / (dsi->lanes);
produces the same result while improving readability and clarity.
Additi
From: Lad Prabhakar
Introduce `dphy_conf_clks` and `dphy_mode_clk_check` callbacks in
`rzg2l_mipi_dsi_hw_info` to configure the VCLK and validate
supported display modes.
On the RZ/V2H(P) SoC, the DSI PLL dividers need to be as accurate as
possible. To ensure compatibility with both RZ/G2L and
From: Lad Prabhakar
Update the RZ/G2L MIPI DSI driver to calculate HSFREQ using the actual
VCLK rate instead of the mode clock. The relationship between HSCLK and
VCLK is:
vclk * bpp <= hsclk * 8 * lanes
Retrieve the VCLK rate using `clk_get_rate(dsi->vclk)`, ensuring that
From: Lad Prabhakar
Add support for PLLDSI and PLLDSI divider clocks.
Introduce the `renesas-rzv2h-dsi.h` header to centralize and share
PLLDSI-related data structures, limits, and algorithms between the RZ/V2H
CPG and DSI drivers.
The DSI PLL is functionally similar to the CPG's PLLDSI
From: Lad Prabhakar
Add DSI support for Renesas RZ/V2H(P) SoC.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v3->v4
- In rzv2h_dphy_find_ulpsexit() made the array static const.
v2->v3:
- Simplifed V2H DSI timings array to save
From: Lad Prabhakar
The LCD controller (LCDC) on the RZ/V2H(P) SoC is composed of Frame
Compression Processor (FCPVD), Video Signal Processor (VSPD), and
Display Unit (DU).
There is one LCDC unit available on the RZ/V2H(P) SoC which is connected
to the DSI.
Signed-off-by: Lad Prabhakar
---
v1
From: Lad Prabhakar
Add a compatible string for the Renesas RZ/V2N SoC variants that include a
Mali-G31 GPU. These variants share the same restrictions on interrupts,
clocks, and power domains as the RZ/G2L SoC, so extend the existing schema
validation accordingly.
Signed-off-by: Lad Prabhakar
From: Lad Prabhakar
Add DSI support for Renesas RZ/V2H(P) SoC.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v2->v3:
- Simplifed V2H DSI timings array to save space
- Switched to use fsleep() instead of udelay()
v1->v2:
- Dropped
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_16BPP` flag in `rzg2l_mipi_dsi_hw_info`
to indicate support for 16BPP pixel formats. The RZ/V2H(P) SoC supports
16BPP, whereas this feature is missing on the RZ/G2L SoC.
Update the `mipi_dsi_host_attach()` function to check this flag before
From: Lad Prabhakar
In preparation for adding support for the Renesas RZ/V2H(P) SoC, this patch
introduces a mechanism to pass SoC-specific information via OF data in the
DSI driver. This enables the driver to adapt dynamically to various
SoC-specific requirements without hardcoding
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_LPCLK` feature flag in
`rzg2l_mipi_dsi_hw_info` to indicate the need for LPCLK configuration.
On the RZ/V2H(P) SoC, the LPCLK clock rate influences the required
DPHY register configuration, whereas on the RZ/G2L SoC, this clock
is not
From: Lad Prabhakar
Hi All,
This patch series adds support for the Display Unit (DU) and MIPI DSI
interface on the Renesas RZ/V2H(P) SoC. The initial patches add PLLDSI
clocks and reset entries for the DSI and LCDC and the later patches add
support for the DU and DSI drivers. The DU block is
From: Lad Prabhakar
Add support for PLLDSI and PLLDSI divider clocks.
Introduce the `renesas-rzv2h-dsi.h` header to centralize and share
PLLDSI-related data structures, limits, and algorithms between the RZ/V2H
CPG and DSI drivers.
The DSI PLL is functionally similar to the CPG's PLLDSI
From: Lad Prabhakar
Add clock and reset entries for the DSI and LCDC peripherals.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v2->v3:
- Reverted CSDIV0_DIVCTL2() to use DDIV_PACK()
- Renamed plleth_lpclk_div4 -> cdiv4_plleth
From: Lad Prabhakar
Introduce `dphy_conf_clks` and `dphy_mode_clk_check` callbacks in
`rzg2l_mipi_dsi_hw_info` to configure the VCLK and validate
supported display modes.
On the RZ/V2H(P) SoC, the DSI PLL dividers need to be as accurate as
possible. To ensure compatibility with both RZ/G2L and
From: Lad Prabhakar
Pass the HSFREQ in milli-Hz to the `dphy_init()` callback to improve
precision, especially for the RZ/V2H(P) SoC, where PLL dividers require
high accuracy.
These changes prepare the driver for upcoming RZ/V2H(P) SoC support.
Co-developed-by: Fabrizio Castro
Signed-off-by
From: Lad Prabhakar
Update the RZ/G2L MIPI DSI driver to calculate HSFREQ using the actual
VCLK rate instead of the mode clock. The relationship between HSCLK and
VCLK is:
vclk * bpp <= hsclk * 8 * lanes
Retrieve the VCLK rate using `clk_get_rate(dsi->vclk)`, ensuring that
From: Lad Prabhakar
The MIPI DSI interface on the RZ/V2H(P) SoC is nearly identical to that of
the RZ/G2L SoC. While the LINK registers are the same for both SoCs, the
D-PHY registers differ. Additionally, the number of resets for DSI on
RZ/V2H(P) is two compared to three on the RZ/G2L.
To
From: Lad Prabhakar
The VCLK range for Renesas RZ/G2L SoC is 148.5 MHz to 5.803 MHz. Add a
minimum clock check in the mode_valid callback to ensure that the clock
value does not fall below the valid range.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad
From: Lad Prabhakar
The LCD controller (LCDC) on the RZ/V2H(P) SoC is composed of Frame
Compression Processor (FCPVD), Video Signal Processor (VSPD), and
Display Unit (DU).
There is one LCDC unit available on the RZ/V2H(P) SoC which is connected
to the DSI.
Signed-off-by: Lad Prabhakar
---
v2
From: Lad Prabhakar
The DU block on the RZ/V2H(P) SoC is identical to the one found on the
RZ/G2L SoC. However, it only supports the DSI interface, whereas the
RZ/G2L supports both DSI and DPI interfaces.
Due to this difference, a SoC-specific compatible string
'renesas,r9a09g057-du'
From: Lad Prabhakar
Simplify the high-speed clock frequency (HSFREQ) calculation by removing
the redundant multiplication and division by 8. The updated equation:
hsfreq = (mode->clock * bpp) / (dsi->lanes);
produces the same result while improving readability and clarity.
Additi
From: Lad Prabhakar
Introduce the `dphy_late_init` callback in `rzg2l_mipi_dsi_hw_info` to
allow additional D-PHY register configurations after enabling data and
clock lanes. This is required for the RZ/V2H(P) SoC but not for the
RZ/G2L SoC.
Modify `rzg2l_mipi_dsi_startup()` to invoke
From: Lad Prabhakar
Hi All,
This patch series adds support for the Mali-G31 GPU on the RZ/V2H(P) SoC.
The changes include updating the device tree bindings, adding the GPU node
to the SoC device tree, and enabling the GPU on the RZ/V2H evaluation kit.
Lad Prabhakar (3):
dt-bindings: gpu
From: Lad Prabhakar
Add Mali-G31 GPU node to SoC DTSI.
Signed-off-by: Lad Prabhakar
---
arch/arm64/boot/dts/renesas/r9a09g057.dtsi | 51 ++
1 file changed, 51 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r9a09g057.dtsi
b/arch/arm64/boot/dts/renesas/r9a09g057
From: Lad Prabhakar
Add a compatible string for the Renesas RZ/V2H(P) SoC variants that
include a Mali-G31 GPU. These variants share the same restrictions on
interrupts, clocks, and power domains as the RZ/G2L SoC, so extend
the existing schema validation accordingly.
Signed-off-by: Lad
From: Lad Prabhakar
Enable Mali-G31 (GPU) node on EVK board.
Signed-off-by: Lad Prabhakar
---
.../boot/dts/renesas/r9a09g057h44-rzv2h-evk.dts | 15 +++
1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r9a09g057h44-rzv2h-evk.dts
b/arch/arm64/boot/dts
From: Lad Prabhakar
The DU block on the RZ/V2H(P) SoC is identical to the one found on the
RZ/G2L SoC. However, it only supports the DSI interface, whereas the
RZ/G2L supports both DSI and DPI interfaces.
Due to this difference, a SoC-specific compatible string
'renesas,r9a09g057-du'
From: Lad Prabhakar
Pass the HSFREQ in milli-Hz to the `dphy_init()` callback to improve
precision, especially for the RZ/V2H(P) SoC, where PLL dividers require
high accuracy.
These changes prepare the driver for upcoming RZ/V2H(P) SoC support.
Co-developed-by: Fabrizio Castro
Signed-off-by
From: Lad Prabhakar
Introduce the `dphy_late_init` callback in `rzg2l_mipi_dsi_hw_info` to
allow additional D-PHY register configurations after enabling data and
clock lanes. This is required for the RZ/V2H(P) SoC but not for the
RZ/G2L SoC.
Modify `rzg2l_mipi_dsi_startup()` to invoke
From: Lad Prabhakar
Add LPCLK clock support in the RZ/G2L MIPI DSI driver via the optional
clock API. This clock is required by some SoCs like RZ/V2H(P) for proper
DPHY configuration, whereas it is absent on others like RZ/G2L.
Introduce a new `lpclk` field in the `rzg2l_mipi_dsi` structure and
From: Lad Prabhakar
Introduce `dphy_conf_clks` and `dphy_mode_clk_check` callbacks in
`rzg2l_mipi_dsi_hw_info` to configure the VCLK and validate
supported display modes.
On the RZ/V2H(P) SoC, the DSI PLL dividers need to be as accurate as
possible. To ensure compatibility with both RZ/G2L and
From: Lad Prabhakar
The LCD controller (LCDC) on the RZ/V2H(P) SoC is composed of Frame
Compression Processor (FCPVD), Video Signal Processor (VSPD), and
Display Unit (DU).
There is one LCDC unit available on the RZ/V2H(P) SoC which is connected
to the DSI.
Signed-off-by: Lad Prabhakar
From: Lad Prabhakar
The VCLK range for Renesas RZ/G2L SoC is 148.5 MHz to 5.803 MHz. Add a
minimum clock check in the mode_valid callback to ensure that the clock
value does not fall below the valid range.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad
From: Lad Prabhakar
Hi All,
This patch series adds support for the Display Unit (DU) and prepares
the MIPI DSI driver to support the Renesas RZ/V2H(P) SoC. These patches
were originally part of series [0], but I have split them into two parts
to make them easier to review and merge.
This patch
From: Lad Prabhakar
In preparation for adding support for the Renesas RZ/V2H(P) SoC, make the
"rst" reset control optional in the MIPI DSI driver. The RZ/V2H(P) SoC
does not provide this reset line, and attempting to acquire it using the
mandatory API causes probe failure.
Sw
From: Lad Prabhakar
Update the RZ/G2L MIPI DSI driver to calculate HSFREQ using the actual
VCLK rate instead of the mode clock. The relationship between HSCLK and
VCLK is:
vclk * bpp <= hsclk * 8 * lanes
Retrieve the VCLK rate using `clk_get_rate(dsi->vclk)`, ensuring that
From: Lad Prabhakar
Simplify the high-speed clock frequency (HSFREQ) calculation by removing
the redundant multiplication and division by 8. The updated equation:
hsfreq = (mode->clock * bpp) / (dsi->lanes);
produces the same result while improving readability and clarity.
Additi
From: Lad Prabhakar
In preparation for adding support for the Renesas RZ/V2H(P) SoC, this patch
introduces a mechanism to pass SoC-specific information via OF data in the
DSI driver. This enables the driver to adapt dynamically to various
SoC-specific requirements without hardcoding
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_16BPP` flag in `rzg2l_mipi_dsi_hw_info`
to indicate support for 16BPP pixel formats. The RZ/V2H(P) SoC supports
16BPP, whereas this feature is missing on the RZ/G2L SoC.
Update the `mipi_dsi_host_attach()` function to check this flag before
From: Lad Prabhakar
Hi All,
This patch series adds DU/DSI clocks and provides support for the
MIPI DSI interface on the RZ/V2H(P) SoC. It was originally part of
series [0], but has now been split into 4 patches due to dependencies
on the clock driver, making it easier to review and merge.
[0
From: Lad Prabhakar
Add clock and reset entries for the DSI and LCDC peripherals.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v4->v5:
- No changes
v3->v4:
- No changes
v2->v3:
- Reverted CSDIV0_DIVCTL2() to use DDIV_PACK()
From: Lad Prabhakar
Add support for PLLDSI and PLLDSI divider clocks.
Introduce the `renesas-rzv2h-dsi.h` header to centralize and share
PLLDSI-related data structures, limits, and algorithms between the RZ/V2H
CPG and DSI drivers.
The DSI PLL is functionally similar to the CPG's PLLDSI
From: Lad Prabhakar
The MIPI DSI interface on the RZ/V2H(P) SoC is nearly identical to that of
the RZ/G2L SoC. While the LINK registers are the same for both SoCs, the
D-PHY registers differ. Additionally, the number of resets for DSI on
RZ/V2H(P) is two compared to three on the RZ/G2L.
To
From: Lad Prabhakar
Add DSI support for Renesas RZ/V2H(P) SoC.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v4->v5:
- No changes
v3->v4
- In rzv2h_dphy_find_ulpsexit() made the array static const.
v2->v3:
- Simplifed V2H DSI timi
From: Lad Prabhakar
The VCLK range for Renesas RZ/G2L SoC is 5.803 MHz to 148.5 MHz. Add a
minimum clock check in the mode_valid callback to ensure that the clock
value does not fall below the valid range.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_16BPP` flag in `rzg2l_mipi_dsi_hw_info`
to indicate support for 16BPP pixel formats. The RZ/V2H(P) SoC supports
16BPP, whereas this feature is missing on the RZ/G2L SoC.
Update the `mipi_dsi_host_attach()` function to check this flag before
From: Lad Prabhakar
Introduce `dphy_conf_clks` and `dphy_mode_clk_check` callbacks in
`rzg2l_mipi_dsi_hw_info` to configure the VCLK and validate
supported display modes.
On the RZ/V2H(P) SoC, the DSI PLL dividers need to be as accurate as
possible. To ensure compatibility with both RZ/G2L and
From: Lad Prabhakar
Introduce the `dphy_late_init` callback in `rzg2l_mipi_dsi_hw_info` to
allow additional D-PHY register configurations after enabling data and
clock lanes. This is required for the RZ/V2H(P) SoC but not for the
RZ/G2L SoC.
Modify `rzg2l_mipi_dsi_startup()` to invoke
From: Lad Prabhakar
Update the RZ/G2L MIPI DSI driver to calculate HSFREQ using the actual
VCLK rate instead of the mode clock. The relationship between HSCLK and
VCLK is:
vclk * bpp <= hsclk * 8 * lanes
Retrieve the VCLK rate using `clk_get_rate(dsi->vclk)`, ensuring that
From: Lad Prabhakar
Hi All,
This patch series prepares the MIPI DSI driver to support the Renesas
RZ/V2H(P) SoC. These patches were originally part of series [0], but I have
split them into two parts to make them easier to review and merge.
v6->v7:
- Rebased the changes on drm-misc/n
From: Lad Prabhakar
Pass the HSFREQ in milli-Hz to the `dphy_init()` callback to improve
precision, especially for the RZ/V2H(P) SoC, where PLL dividers require
high accuracy.
These changes prepare the driver for upcoming RZ/V2H(P) SoC support.
Co-developed-by: Fabrizio Castro
Signed-off-by
From: Lad Prabhakar
In preparation for adding support for the Renesas RZ/V2H(P) SoC, make the
"rst" reset control optional in the MIPI DSI driver. The RZ/V2H(P) SoC
does not provide this reset line, and attempting to acquire it using the
mandatory API causes probe failure.
Sw
From: Lad Prabhakar
n preparation for adding support for the Renesas RZ/V2H(P) SoC, this patch
introduces a mechanism to pass SoC-specific information via OF data in the
DSI driver. This enables the driver to adapt dynamically to various
SoC-specific requirements without hardcoding
From: Lad Prabhakar
Document support for the DU IP found on the Renesas RZ/V2N (R9A09G056) SoC.
The DU IP is functionally identical to that on the RZ/V2H(P) SoC, so no
driver changes are needed. The existing `renesas,r9a09g057-du` compatible
will be used as a fallback for the RZ/V2N SoC.
Signed
From: Lad Prabhakar
Simplify the high-speed clock frequency (HSFREQ) calculation by removing
the redundant multiplication and division by 8. The updated equation:
hsfreq = mode->clock * bpp / dsi->lanes;
produces the same result while improving readability and clarity.
Additi
From: Lad Prabhakar
Introduce `dphy_conf_clks` and `dphy_mode_clk_check` callbacks in
`rzg2l_mipi_dsi_hw_info` to configure the VCLK and validate
supported display modes.
On the RZ/V2H(P) SoC, the DSI PLL dividers need to be as accurate as
possible. To ensure compatibility with both RZ/G2L and
From: Lad Prabhakar
Introduce the `dphy_late_init` callback in `rzg2l_mipi_dsi_hw_info` to
allow additional D-PHY register configurations after enabling data and
clock lanes. This is required for the RZ/V2H(P) SoC but not for the
RZ/G2L SoC.
Modify `rzg2l_mipi_dsi_startup()` to invoke
From: Lad Prabhakar
The VCLK range for Renesas RZ/G2L SoC is 5.803 MHz to 148.5 MHz. Add a
minimum clock check in the mode_valid callback to ensure that the clock
value does not fall below the valid range.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad
From: Lad Prabhakar
The DU block on the RZ/V2H(P) SoC is identical to the one found on the
RZ/G2L SoC. However, it only supports the DSI interface, whereas the
RZ/G2L supports both DSI and DPI interfaces.
Due to this difference, a SoC-specific compatible string
'renesas,r9a09g057-du'
From: Lad Prabhakar
Introduce the `RZ_MIPI_DSI_FEATURE_16BPP` flag in `rzg2l_mipi_dsi_hw_info`
to indicate support for 16BPP pixel formats. The RZ/V2H(P) SoC supports
16BPP, whereas this feature is missing on the RZ/G2L SoC.
Update the `mipi_dsi_host_attach()` function to check this flag before
From: Lad Prabhakar
Update the RZ/G2L MIPI DSI driver to calculate HSFREQ using the actual
VCLK rate instead of the mode clock. The relationship between HSCLK and
VCLK is:
vclk * bpp <= hsclk * 8 * lanes
Retrieve the VCLK rate using `clk_get_rate(dsi->vclk)`, ensuring that
From: Lad Prabhakar
Add LPCLK clock support in the RZ/G2L MIPI DSI driver via the optional
clock API. This clock is required by some SoCs like RZ/V2H(P) for proper
DPHY configuration, whereas it is absent on others like RZ/G2L.
Introduce a new `lpclk` field in the `rzg2l_mipi_dsi` structure and
From: Lad Prabhakar
In preparation for adding support for the Renesas RZ/V2H(P) SoC, this patch
introduces a mechanism to pass SoC-specific information via OF data in the
DSI driver. This enables the driver to adapt dynamically to various
SoC-specific requirements without hardcoding
From: Lad Prabhakar
In preparation for adding support for the Renesas RZ/V2H(P) SoC, make the
"rst" reset control optional in the MIPI DSI driver. The RZ/V2H(P) SoC
does not provide this reset line, and attempting to acquire it using the
mandatory API causes probe failure.
Sw
From: Lad Prabhakar
Simplify the high-speed clock frequency (HSFREQ) calculation by removing
the redundant multiplication and division by 8. The updated equation:
hsfreq = mode->clock * bpp / dsi->lanes;
produces the same result while improving readability and clarity.
Additi
From: Lad Prabhakar
The LCD controller (LCDC) on the RZ/V2H(P) SoC is composed of Frame
Compression Processor (FCPVD), Video Signal Processor (VSPD), and
Display Unit (DU).
There is one LCDC unit available on the RZ/V2H(P) SoC which is connected
to the DSI.
Signed-off-by: Lad Prabhakar
From: Lad Prabhakar
Pass the HSFREQ in milli-Hz to the `dphy_init()` callback to improve
precision, especially for the RZ/V2H(P) SoC, where PLL dividers require
high accuracy.
These changes prepare the driver for upcoming RZ/V2H(P) SoC support.
Co-developed-by: Fabrizio Castro
Signed-off-by
From: Lad Prabhakar
Add DSI support for Renesas RZ/V2H(P) SoC.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v5->v6:
- Made use of GENMASK() macro for PLLCLKSET0R_PLL_*,
PHYTCLKSETR_* and PHYTHSSETR_* macros.
- Replaced 1000UL with
From: Lad Prabhakar
Add clock and reset entries for the DSI and LCDC peripherals.
Co-developed-by: Fabrizio Castro
Signed-off-by: Fabrizio Castro
Signed-off-by: Lad Prabhakar
---
v5->v6:
- Renamed CLK_DIV_PLLETH_LPCLK to CLK_CDIV4_PLLETH_LPCLK
- Renamed CLK_CSDIV_PLLETH_LPCLK
From: Lad Prabhakar
Hi All,
This patch series adds DU/DSI clocks and provides support for the
MIPI DSI interface on the RZ/V2H(P) SoC. It was originally part of
series [0], but has now been split into 4 patches due to dependencies
on the clock driver, making it easier to review and merge.
[0
From: Lad Prabhakar
The MIPI DSI interface on the RZ/V2H(P) SoC is nearly identical to that of
the RZ/G2L SoC. While the LINK registers are the same for both SoCs, the
D-PHY registers differ. Additionally, the number of resets for DSI on
RZ/V2H(P) is two compared to three on the RZ/G2L.
To
From: Lad Prabhakar
Hi All,
This patch series adds support for the Display Unit (DU) and prepares
the MIPI DSI driver to support the Renesas RZ/V2H(P) SoC. These patches
were originally part of series [0], but I have split them into two parts
to make them easier to review and merge.
This patch
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