From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Thu, 29 Apr 2021 14:41:15 +0200
Subject: ARM: dts: r8a7779, marzen: Fix DU clock names
Git-commit: 6ab8c23096a29b69044209a5925758a6f88bd450
Patch-mainline: v5.14-rc1
References: git-fixes

"make dtbs_check" complains:

    arch/arm/boot/dts/r8a7779-marzen.dt.yaml: display@fff80000: clock-names:0: 'du.0' was expected

Change the first clock name to match the DT bindings.
This has no effect on actual operation, as the Display Unit driver in
Linux does not use the first clock name on R-Car H1, but just grabs the
first clock.

Fixes: 665d79aa47cb3983 ("ARM: shmobile: marzen: Add DU external pixel clock to DT")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/9d5e1b371121883b3b3e10a3df43802a29c6a9da.1619699965.git.geert+renesas@glider.be

Acked-by: Ivan T. Ivanov <iivanov@suse.de>
---
 arch/arm/boot/dts/r8a7779-marzen.dts |    2 +-
 arch/arm/boot/dts/r8a7779.dtsi       |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/arch/arm/boot/dts/r8a7779-marzen.dts
+++ b/arch/arm/boot/dts/r8a7779-marzen.dts
@@ -146,7 +146,7 @@
 	status = "okay";
 
 	clocks = <&mstp1_clks R8A7779_CLK_DU>, <&x3_clk>;
-	clock-names = "du", "dclkin.0";
+	clock-names = "du.0", "dclkin.0";
 
 	ports {
 		port@0 {
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -455,6 +455,7 @@
 		reg = <0xfff80000 0x40000>;
 		interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp1_clks R8A7779_CLK_DU>;
+		clock-names = "du.0";
 		power-domains = <&sysc R8A7779_PD_ALWAYS_ON>;
 		status = "disabled";