[PATCH v2 0/2] Enable PowerVR driver for TI AM62x

[PATCH v2 0/2] Enable PowerVR driver for TI AM62x

[Donald Robson]

These patches enable the new open source PowerVR driver for TI AM62x SoCs,
currently the only one supported.

Changes since v1:
- Added patch 1 for arm64 defconfig (requested by Nishanth Menon)

Donald Robson (1):
  arm64: defconfig: enable DRM_POWERVR

Sarah Walker (1):
  arm64: dts: ti: k3-am62-main: Add GPU device node

 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 9 +++++++++
 arch/arm64/configs/defconfig             | 1 +
 2 files changed, 10 insertions(+)

-- 
2.25.1

[PATCH v2 1/2] arm64: defconfig: enable DRM_POWERVR

[Donald Robson]

Enable the PowerVR DRM driver, as it's used for the GPU in platforms using the
TI AM62x SoCs, such as the TI SK-AM62 and BeaglePlay (2023).

Signed-off-by: Donald Robson <donald.robson@imgtec.com>
---
 arch/arm64/configs/defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index b60aa1f89343..85e55b13b114 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -885,6 +885,7 @@ CONFIG_DRM_PL111=m
 CONFIG_DRM_LIMA=m
 CONFIG_DRM_PANFROST=m
 CONFIG_DRM_TIDSS=m
+CONFIG_DRM_POWERVR=m
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_EFI=y
-- 
2.25.1

[PATCH v2 2/2] arm64: dts: ti: k3-am62-main: Add GPU device node

[Donald Robson]

From: Sarah Walker <sarah.walker@imgtec.com>

Add the Series AXE GPU node to the AM62 device tree.

Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Signed-off-by: Sarah Walker <sarah.walker@imgtec.com>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
---
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index e5c64c86d1d5..4338fd8ab2d7 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -965,4 +965,13 @@ mcasp2: audio-controller@2b20000 {
 		power-domains = <&k3_pds 192 TI_SCI_PD_EXCLUSIVE>;
 		status = "disabled";
 	};
+
+	gpu: gpu@fd00000 {
+		compatible = "ti,am62-gpu", "img,img-axe";
+		reg = <0x00 0x0fd00000 0x00 0x20000>;
+		clocks = <&k3_clks 187 0>;
+		clock-names = "core";
+		interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+		power-domains = <&k3_pds 187 TI_SCI_PD_EXCLUSIVE>;
+	};
 };
-- 
2.25.1

Re: [PATCH v2 0/2] Enable PowerVR driver for TI AM62x

[Etheridge, Darren]

On 12/5/2023 5:39 AM, Donald Robson wrote:
> These patches enable the new open source PowerVR driver for TI AM62x SoCs,
> currently the only one supported.
> 
> Changes since v1:
> - Added patch 1 for arm64 defconfig (requested by Nishanth Menon)
> 
> Donald Robson (1):
>    arm64: defconfig: enable DRM_POWERVR
> 
> Sarah Walker (1):
>    arm64: dts: ti: k3-am62-main: Add GPU device node
> 
For the series:

Acked-by: Darren Etheridge <detheridge@ti.com>


Thanks,
Darren

Re: [PATCH v2 0/2] Enable PowerVR driver for TI AM62x

[Maxime Ripard]

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Hi Nishanth, Tero, Vignesh,

On Tue, Dec 05, 2023 at 11:39:31AM +0000, Donald Robson wrote:
> These patches enable the new open source PowerVR driver for TI AM62x SoCs,
> currently the only one supported.
> 
> Changes since v1:
> - Added patch 1 for arm64 defconfig (requested by Nishanth Menon)
> 
> Donald Robson (1):
>   arm64: defconfig: enable DRM_POWERVR
> 
> Sarah Walker (1):
>   arm64: dts: ti: k3-am62-main: Add GPU device node

Any chance we can get that in 6.8?

Since the driver will reach 6.8 as well, it would be a bit of a bummer
to not have it enabled anywhere.

Maxime

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Re: [PATCH v2 0/2] Enable PowerVR driver for TI AM62x

[Nishanth Menon]

Hi Donald Robson,

On Tue, 05 Dec 2023 11:39:31 +0000, Donald Robson wrote:
> These patches enable the new open source PowerVR driver for TI AM62x SoCs,
> currently the only one supported.
> 
> Changes since v1:
> - Added patch 1 for arm64 defconfig (requested by Nishanth Menon)
> 
> Donald Robson (1):
>   arm64: defconfig: enable DRM_POWERVR
> 
> [...]

NOTE: This series creates checkpatch warnings against v6.7-rc1 and
complains that it cannot find ti,am62-gpu or img,img-axe which
has been merged in drm tree for next. This is clean in linux-next
for a few weeks now. Given the number of people who would really
like to see it in v6.8-rc1 to continue the work towards enabling a
opensource graphics support in the tree without carried patches and
work on next set of features on display and graphics, and given the
real low risk of this NOT making to linus-master, we are making an
specific exception here for this time around. So, please keep a watch
on drm-next and if for any reason the support is dropped going to
linus's tree in the merge window or before, let this chain know with
appropriate maintainers so that we can take corrective actions.

I have applied the following to branch ti-k3-config-next on [1].

[1/2] arm64: defconfig: enable DRM_POWERVR
      commit: e8779517788fa0f3d04840cb7d4121d3df8dfd54

And the following to branch ti-k3-dts-next on [1].

[2/2] arm64: dts: ti: k3-am62-main: Add GPU device node
      commit: a5683d26e09e46362fb3fa87e834cf7073b6a2ec

Thank you!

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D