On Thu, Jun 26, 2025 at 11:33:48AM +0200, Michal Wilczynski wrote:
> Add the "gpu-clkgen" reset property to the AON device tree node. This
> allows the AON power domain driver to detect the capability to power
> sequence the GPU and spawn the necessary pwrseq-thead-gpu auxiliary
> driver for managing the GPU's complex power sequence.
>
> This commit also adds the prerequisite
> dt-bindings/reset/thead,th1520-reset.h include to make the
> TH1520_RESET_ID_GPU_CLKGEN available. This include was previously
> dropped during a conflict resolution [1].
>
> Link: https://lore.kernel.org/all/aAvfn2mq0Ksi8DF2@x1/ [1]
>
> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> Reviewed-by: Drew Fustini <drew@pdp7.com>
> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
> ---
> arch/riscv/boot/dts/thead/th1520.dtsi | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
> index 1db0054c4e093400e9dbebcee5fcfa5b5cae6e32..f3f5db0201ab8c0306d4d63072a1573431e51893 100644
> --- a/arch/riscv/boot/dts/thead/th1520.dtsi
> +++ b/arch/riscv/boot/dts/thead/th1520.dtsi
> @@ -7,6 +7,7 @@
> #include <dt-bindings/interrupt-controller/irq.h>
> #include <dt-bindings/clock/thead,th1520-clk-ap.h>
> #include <dt-bindings/power/thead,th1520-power.h>
> +#include <dt-bindings/reset/thead,th1520-reset.h>
>
> / {
> compatible = "thead,th1520";
> @@ -234,6 +235,8 @@ aon: aon {
> compatible = "thead,th1520-aon";
> mboxes = <&mbox_910t 1>;
> mbox-names = "aon";
> + resets = <&rst TH1520_RESET_ID_GPU_CLKGEN>;
> + reset-names = "gpu-clkgen";
> #power-domain-cells = <1>;
> };
>
>
> --
> 2.34.1
>
I have applied this patch to thead-dt-for-next [1] as commit cf5e81d [2].
Thanks,
Drew
[1] https://github.com/pdp7/linux/commits/thead-dt-for-next/
[2] https://github.com/pdp7/linux/commit/cf5e81da0ed7f548367a9687ad73956a8dfb54d1