On 4/1/25 09:00, Dario Binacchi wrote:
> [backport from Linux commit a995fd2e8b3c6defd1dcdd3fb350c224e41ea1d0]
>
> Add support for MIPI DSI Host controller. Since MIPI DSI is not
> available on stm32f746, the patch adds the "stm32f769.dtsi" file
> containing the dsi node inside.
>
> Signed-off-by: Dario Binacchi <dario.binac...@amarulasolutions.com>
> Reviewed-by: Patrice Chotard <patrice.chot...@foss.st.com>
>
> ---
>
> Changes in v2:
> - Add Reviewed-by tag of Patrice Chotard
>
> arch/arm/dts/stm32f769-disco-u-boot.dtsi | 41 +++++++++++-------------
> arch/arm/dts/stm32f769-disco.dts | 2 +-
> arch/arm/dts/stm32f769.dtsi | 20 ++++++++++++
> 3 files changed, 39 insertions(+), 24 deletions(-)
> create mode 100644 arch/arm/dts/stm32f769.dtsi
>
> diff --git a/arch/arm/dts/stm32f769-disco-u-boot.dtsi
> b/arch/arm/dts/stm32f769-disco-u-boot.dtsi
> index add55c96e21f..c5ae753debe6 100644
> --- a/arch/arm/dts/stm32f769-disco-u-boot.dtsi
> +++ b/arch/arm/dts/stm32f769-disco-u-boot.dtsi
> @@ -44,30 +44,25 @@
> };
> };
> };
> +};
>
> - soc {
> - dsi: dsi@40016c00 {
> - compatible = "st,stm32-dsi";
> - reg = <0x40016c00 0x800>;
> - resets = <&rcc STM32F7_APB2_RESET(DSI)>;
> - clocks = <&rcc 0 STM32F7_APB2_CLOCK(DSI)>,
> - <&rcc 0 STM32F7_APB2_CLOCK(LTDC)>,
> - <&clk_hse>;
> - clock-names = "pclk", "px_clk", "ref";
> - bootph-all;
> - status = "okay";
> -
> - ports {
> - port@0 {
> - dsi_out: endpoint {
> - remote-endpoint = <&panel_in>;
> - };
> - };
> - port@1 {
> - dsi_in: endpoint {
> - remote-endpoint = <&dp_out>;
> - };
> - };
> +&dsi {
> + clocks = <&rcc 0 STM32F7_APB2_CLOCK(DSI)>,
> + <&rcc 0 STM32F7_APB2_CLOCK(LTDC)>,
> + <&clk_hse>;
> + clock-names = "pclk", "px_clk", "ref";
> + bootph-all;
> + status = "okay";
> +
> + ports {
> + port@0 {
> + dsi_out: endpoint {
> + remote-endpoint = <&panel_in>;
> + };
> + };
> + port@1 {
> + dsi_in: endpoint {
> + remote-endpoint = <&dp_out>;
> };
> };
> };
> diff --git a/arch/arm/dts/stm32f769-disco.dts
> b/arch/arm/dts/stm32f769-disco.dts
> index d63cd2ba7eb4..ad1b442055e1 100644
> --- a/arch/arm/dts/stm32f769-disco.dts
> +++ b/arch/arm/dts/stm32f769-disco.dts
> @@ -5,7 +5,7 @@
> */
>
> /dts-v1/;
> -#include "stm32f746.dtsi"
> +#include "stm32f769.dtsi"
> #include "stm32f769-pinctrl.dtsi"
> #include <dt-bindings/input/input.h>
> #include <dt-bindings/gpio/gpio.h>
> diff --git a/arch/arm/dts/stm32f769.dtsi b/arch/arm/dts/stm32f769.dtsi
> new file mode 100644
> index 000000000000..4e7d9032149c
> --- /dev/null
> +++ b/arch/arm/dts/stm32f769.dtsi
> @@ -0,0 +1,20 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2023 Dario Binacchi <dario.binac...@amarulasolutions.com>
> + */
> +
> +#include "stm32f746.dtsi"
> +
> +/ {
> + soc {
> + dsi: dsi@40016c00 {
> + compatible = "st,stm32-dsi";
> + reg = <0x40016c00 0x800>;
> + clocks = <&rcc 1 CLK_F769_DSI>, <&clk_hse>;
> + clock-names = "pclk", "ref";
> + resets = <&rcc STM32F7_APB2_RESET(DSI)>;
> + reset-names = "apb";
> + status = "disabled";
> + };
> + };
> +};
Hi Dario
For information, stm32f769.dtsi and stm32f769-disco.dts update
has been dropped due to OF_UPSTREAM now available on stm32 platforms.
Both dropped files will be bring back during nect kernel -> U-Boot DT
synchronisation.
Thanks
Patrice
