From 451ae8daa23fde23708bb0119ecff2d511e39c69 Mon Sep 17 00:00:00 2001
From: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Date: Mon, 11 Dec 2023 23:05:53 +0100
Subject: [PATCH] ARM: dts: stm32: make the DSI clock usable by the clock
 driver

As described in [1], the "clocks" property contains "a phandle to the
clock device node, an index selecting between gated clocks (0) and other
clocks (1), and an index specifying the clock to use." The current version
of the clock driver, unlike the kernel, is currently able to properly
handle nodes with "clocks" properties with an index set to 0.

This patch is preparatory for future developments that require the use
of the DSI clock.

[1] Documentation/devicetree/bindings/clock/st,stm32-rcc.txt
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
 arch/arm/dts/stm32f469-disco-u-boot.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/dts/stm32f469-disco-u-boot.dtsi b/arch/arm/dts/stm32f469-disco-u-boot.dtsi
index dcc70369cd..8e781c5a7b 100644
--- a/arch/arm/dts/stm32f469-disco-u-boot.dtsi
+++ b/arch/arm/dts/stm32f469-disco-u-boot.dtsi
@@ -90,6 +90,11 @@
 	bootph-all;
 };
 
+&dsi {
+	clocks = <&rcc 0 STM32F4_APB2_CLOCK(DSI)>,
+		 <&clk_hse>;
+};
+
 &gpioa {
 	bootph-all;
 };
-- 
2.39.5