| Message ID | 20210714121116.v2.4.I7bd7d9a8da5e2894711b700a1127e6902a2b2f1d@changeid (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support to the mmsys driver to be a reset controller | expand |
On Wed, 14 Jul 2021 12:11:38 +0200, Enric Balletbo i Serra wrote: > Reset the DSI hardware is needed to prevent different settings between > the bootloader and the kernel. > > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> > --- > > (no changes since v1) > > arch/arm64/boot/dts/mediatek/mt8173.dtsi | 2 ++ > include/dt-bindings/reset/mt8173-resets.h | 2 ++ > 2 files changed, 4 insertions(+) > Acked-by: Rob Herring <robh@kernel.org>
diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi index a3de6374d495..2ac77d47bf81 100644 --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi @@ -1036,6 +1036,7 @@ mmsys: syscon@14000000 { assigned-clocks = <&topckgen CLK_TOP_MM_SEL>; assigned-clock-rates = <400000000>; #clock-cells = <1>; + #reset-cells = <1>; mboxes = <&gce 0 CMDQ_THR_PRIO_HIGHEST>, <&gce 1 CMDQ_THR_PRIO_HIGHEST>; mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0 0x1000>; @@ -1261,6 +1262,7 @@ dsi0: dsi@1401b000 { <&mmsys CLK_MM_DSI0_DIGITAL>, <&mipi_tx0>; clock-names = "engine", "digital", "hs"; + resets = <&mmsys MT8173_MMSYS_SW0_RST_B_DISP_DSI0>; phys = <&mipi_tx0>; phy-names = "dphy"; status = "disabled"; diff --git a/include/dt-bindings/reset/mt8173-resets.h b/include/dt-bindings/reset/mt8173-resets.h index ba8636eda5ae..6a60c7cecc4c 100644 --- a/include/dt-bindings/reset/mt8173-resets.h +++ b/include/dt-bindings/reset/mt8173-resets.h @@ -27,6 +27,8 @@ #define MT8173_INFRA_GCE_FAXI_RST 40 #define MT8173_INFRA_MMIOMMURST 47 +/* MMSYS resets */ +#define MT8173_MMSYS_SW0_RST_B_DISP_DSI0 25 /* PERICFG resets */ #define MT8173_PERI_UART0_SW_RST 0
Reset the DSI hardware is needed to prevent different settings between the bootloader and the kernel. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> --- (no changes since v1) arch/arm64/boot/dts/mediatek/mt8173.dtsi | 2 ++ include/dt-bindings/reset/mt8173-resets.h | 2 ++ 2 files changed, 4 insertions(+)