Re: [PATCH 1/2] arm: dt-bindings: mfd: stm32f-rcc: Add missing DSI clock

From: Adrian Pop
Date: Mon Apr 27 2020 - 15:00:05 EST

On Mon, Apr 27, 2020 at 9:49 AM Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>
> On Fri, 24 Apr 2020, Adrian Pop wrote:
>
> > Add missing clock.
> >
> > Signed-off-by: Adrian Pop <pop.adrian61@xxxxxxxxx>
> > ---
> > include/dt-bindings/mfd/stm32f7-rcc.h | 1 +
> > 1 file changed, 1 insertion(+)
>
> I assume patch 2 depends on this?

Yes, second patch depends on this.

>
> If so, where is it? Why isn't it in my inbox?
>

Here it is:

STM32f769-disco features a 4" MIPI DSI display: add support for it.

Signed-off-by: Adrian Pop <pop.adrian61@xxxxxxxxx>
---
arch/arm/boot/dts/stm32f746.dtsi | 34 ++++++++++++++++++
arch/arm/boot/dts/stm32f769-disco.dts | 50 +++++++++++++++++++++++++++
2 files changed, 84 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi
index 93c063796780..202bb6edc9f1 100644
--- a/arch/arm/boot/dts/stm32f746.dtsi
+++ b/arch/arm/boot/dts/stm32f746.dtsi
@@ -48,6 +48,19 @@ / {
#address-cells = <1>;
#size-cells = <1>;

+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ linux,dma {
+ compatible = "shared-dma-pool";
+ linux,dma-default;
+ no-map;
+ size = <0x10F000>;
+ };
+ };
+
clocks {
clk_hse: clk-hse {
#clock-cells = <0>;
@@ -75,6 +88,27 @@ clk_i2s_ckin: clk-i2s-ckin {
};

soc {
+ ltdc: display-controller@40016800 {
+ compatible = "st,stm32-ltdc";
+ reg = <0x40016800 0x200>;
+ interrupts = <88>, <89>;
+ resets = <&rcc STM32F7_APB2_RESET(LTDC)>;
+ clocks = <&rcc 1 CLK_LCD>;
+ clock-names = "lcd";
+ status = "disabled";
+ };
+
+ dsi: dsi@40016c00 {
+ compatible = "st,stm32-dsi";
+ reg = <0x40016c00 0x800>;
+ interrupts = <98>;
+ clocks = <&rcc 1 CLK_F769_DSI>, <&clk_hse>;
+ clock-names = "pclk", "ref";
+ resets = <&rcc STM32F7_APB2_RESET(DSI)>;
+ reset-names = "apb";
+ status = "disabled";
+ };
+
timer2: timer@40000000 {
compatible = "st,stm32-timer";
reg = <0x40000000 0x400>;
diff --git a/arch/arm/boot/dts/stm32f769-disco.dts
b/arch/arm/boot/dts/stm32f769-disco.dts
index 1626e00bb2cb..30ebbc193e82 100644
--- a/arch/arm/boot/dts/stm32f769-disco.dts
+++ b/arch/arm/boot/dts/stm32f769-disco.dts
@@ -153,3 +153,53 @@ &usbotg_hs {
pinctrl-names = "default";
status = "okay";
};
+
+&dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi_in: endpoint {
+ remote-endpoint = <&ltdc_out_dsi>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi_out: endpoint {
+ remote-endpoint = <&dsi_in_panel>;
+ };
+ };
+
+ };
+
+ panel: panel {
+ compatible = "orisetech,otm8009a";
+ reg = <0>; /* dsi virtual channel (0..3) */
+ reset-gpios = <&gpioj 15 GPIO_ACTIVE_LOW>;
+ status = "okay";
+
+ port {
+ dsi_in_panel: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+};
+
+&ltdc {
+ dma-ranges;
+ status = "okay";
+
+ port {
+ ltdc_out_dsi: endpoint {
+ remote-endpoint = <&dsi_in>;
+ };
+ };
+};
--

> > diff --git a/include/dt-bindings/mfd/stm32f7-rcc.h b/include/dt-bindings/mfd/stm32f7-rcc.h
> > index a90f3613c584..ba5cb7456ee4 100644
> > --- a/include/dt-bindings/mfd/stm32f7-rcc.h
> > +++ b/include/dt-bindings/mfd/stm32f7-rcc.h
> > @@ -107,6 +107,7 @@
> > #define STM32F7_RCC_APB2_SAI1 22
> > #define STM32F7_RCC_APB2_SAI2 23
> > #define STM32F7_RCC_APB2_LTDC 26
> > +#define STM32F7_RCC_APB2_DSI 27
> >
> > #define STM32F7_APB2_RESET(bit) (STM32F7_RCC_APB2_##bit + (0x24 * 8))
> > #define STM32F7_APB2_CLOCK(bit) (STM32F7_RCC_APB2_##bit + 0xA0)
>
> --
> Lee Jones [æçæ]
> Linaro Services Technical Lead
> Linaro.org â Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog

On Mon, Apr 27, 2020 at 9:49 AM Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>
> On Fri, 24 Apr 2020, Adrian Pop wrote:
>
> > Add missing clock.
> >
> > Signed-off-by: Adrian Pop <pop.adrian61@xxxxxxxxx>
> > ---
> > include/dt-bindings/mfd/stm32f7-rcc.h | 1 +
> > 1 file changed, 1 insertion(+)
>
> I assume patch 2 depends on this?
>
> If so, where is it? Why isn't it in my inbox?
>
> > diff --git a/include/dt-bindings/mfd/stm32f7-rcc.h b/include/dt-bindings/mfd/stm32f7-rcc.h
> > index a90f3613c584..ba5cb7456ee4 100644
> > --- a/include/dt-bindings/mfd/stm32f7-rcc.h
> > +++ b/include/dt-bindings/mfd/stm32f7-rcc.h
> > @@ -107,6 +107,7 @@
> > #define STM32F7_RCC_APB2_SAI1 22
> > #define STM32F7_RCC_APB2_SAI2 23
> > #define STM32F7_RCC_APB2_LTDC 26
> > +#define STM32F7_RCC_APB2_DSI 27
> >
> > #define STM32F7_APB2_RESET(bit) (STM32F7_RCC_APB2_##bit + (0x24 * 8))
> > #define STM32F7_APB2_CLOCK(bit) (STM32F7_RCC_APB2_##bit + 0xA0)
>
> --
> Lee Jones [æçæ]
> Linaro Services Technical Lead
> Linaro.org â Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog