linux-kernel - [PATCH 6.7 331/713] arm64: dts: qcom: sm8550: Fix SPMI channels size

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Date: Sun, 24 Mar 2024 18:40:57 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Abel Vesa <abel.vesa@...aro.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.7 331/713] arm64: dts: qcom: sm8550: Fix SPMI channels size

From: Abel Vesa <abel.vesa@...aro.org>

[ Upstream commit 77dd1e50ffcba33c3195ae4fc78f354368ddacb2 ]

The actual size of the channels registers region is 4MB, according to the
documentation. This issue was not caught until now because the driver was
supposed to allow same regions being mapped multiple times for supporting
multiple buses. Thie driver is using platform_get_resource_byname() and
devm_ioremap() towards that purpose, which intentionally avoids
devm_request_mem_region() altogether.

Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Tested-by: Neil Armstrong <neil.armstrong@...aro.org> # on SM8550-QRD
Link: https://lore.kernel.org/r/20240221-dts-qcom-sm8550-fix-spmi-chnls-size-v2-1-72b5efd9dc4f@linaro.org
Signed-off-by: Bjorn Andersson <andersson@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/qcom/sm8550.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index e15564ed54cef..d7e68e0f57131 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -3047,7 +3047,7 @@ sram@...0000 {
 		spmi_bus: spmi@...0000 {
 			compatible = "qcom,spmi-pmic-arb";
 			reg = <0 0x0c400000 0 0x3000>,
-			      <0 0x0c500000 0 0x4000000>,
+			      <0 0x0c500000 0 0x400000>,
 			      <0 0x0c440000 0 0x80000>,
 			      <0 0x0c4c0000 0 0x20000>,
 			      <0 0x0c42d000 0 0x4000>;
-- 
2.43.0