Re: [PATCH 5.15 110/317] arm64: dts: renesas: r8a779a0: Update to R-Car Gen4 compatible values

From: Sasha Levin
Date: Tue Mar 26 2024 - 15:18:13 EST


On Mon, Mar 25, 2024 at 09:43:31AM +0100, Geert Uytterhoeven wrote:
Hi Sasha,

On Mon, Mar 25, 2024 at 12:36 AM Sasha Levin <sashal@xxxxxxxxxx> wrote:
From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

[ Upstream commit a1721bbbdb5c6687d157f8b8714bba837f6028ac ]

Despite the name, R-Car V3U is the first member of the R-Car Gen4
family. Hence update the compatible properties in various device nodes
to include family-specific compatible values for R-Car Gen4 instead of
R-Car Gen3:
- DMAC,
- (H)SCIF,
- I2C,
- IPMMU,
- WDT.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/73cea9d5e1a6639422c67e4df4285042e31c9fd5.1651497071.git.geert+renesas@xxxxxxxxx
Stable-dep-of: 0c51912331f8 ("arm64: dts: renesas: r8a779a0: Correct avb[01] reg sizes")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm64/boot/dts/renesas/r8a779a0.dtsi | 24 +++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi b/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
index 26899fb768a73..c7d1b79692c11 100644
--- a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
@@ -583,7 +583,7 @@ hscif3: serial@e66a0000 {

avb0: ethernet@e6800000 {
compatible = "renesas,etheravb-r8a779a0",
- "renesas,etheravb-rcar-gen3";
+ "renesas,etheravb-rcar-gen4";

This change will break Ethernet, as the Renesas EtherAVB driver in
v5.15.x does not handle "renesas,etheravb-rcar-gen4" yet.

That can be fixed by also backporting commit 949f252a8594a860
("net: ravb: Add R-Car Gen4 support") in v6.1.

I'll just drop this patch instead, thanks!

--
Thanks,
Sasha