Re: [PATCH v4 0/5] powervr: MT8173 GPU support

From: Brian Masney

Date: Tue Jul 28 2026 - 09:21:29 EST


Hi Chen-Yu,

On Tue, Jul 28, 2026 at 05:17:58PM +0800, Chen-Yu Tsai wrote:
> Hi everyone,
>
> This is v4 of my MT8173 PowerVR GPU support series.
>
> This time around Mesa was ready for basic testing, using both vulkanmark
> and glmark2-es2-drm (with Zink). Details below.
>
> Changes since v3 (all in the clk driver patch):
> - Changed pm_runtime_put() to pm_runtime_put_sync()
> - Added missing of_node_put() in remove function
>
> Changes since v2 (all in the clk driver patch):
> - Made COMMON_CLK_MT8173_MFGTOP depend on PM
> - Needed since the driver implements PM domains using the generic PM
> domain library, which also depends on PM
> - Fixes build breakage (kernel test robot)
> - Fixed "RST_DELAY_CNT" name (Brian)
> - Dropped unused mfg_desc (Brian)
> - Added check of clk_prepare_enable()'s return value in
> clk_mt8173_mfgtop_power_on() (Brian)
> - Saved error value for return in IS_ERR(data->clk_26m) branch
> (Dan Carpenter / kernel test robot w/ smatch)
>
> Changes since v1:
> - Adapted to changed DT bindings
> - Dropped driver change
> - Use same power domain for "a" and "b" GPU power domains
>
>
> This series enables the PowerVR GPU found in the MT8173 SoC, found in
> some Chromebooks.

I'm making a pull for Stephen for the clk changes. Should patches 1,2,4
go through the clk tree? Patches 3,5 go through the DRM tree?

Brian