riscv: dts: thead: th1520: Add GPU clkgen reset to AON node

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/
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>
Signed-off-by: Drew Fustini <drew@pdp7.com>

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index 1db0054c4e093400e9dbebcee5fcfa5b5cae6e32..f3f5db0201ab8c0306d4d63072a1573431e51893 100644 (file)
--- 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 @@
                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>;
        };