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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Cc: Abel Vesa <abel.vesa@linaro.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Konrad Dybcio <konrad.dybcio@linaro.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.8 283/715] arm64: dts: qcom: sm8650: Fix SPMI channels size
Date: Sun, 24 Mar 2024 18:27:42 -0400
Message-ID: <20240324223455.1342824-284-sashal@kernel.org>
In-Reply-To: <20240324223455.1342824-1-sashal@kernel.org>
References: <20240324223455.1342824-1-sashal@kernel.org>
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From: Abel Vesa <abel.vesa@linaro.org>

[ Upstream commit a4f82b8045e3c7913266aa6ea1ee15752a062abd ]

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: 10e024671295 ("arm64: dts: qcom: sm8650: add interconnect dependent device nodes")
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Link: https://lore.kernel.org/r/20240221-dts-qcom-sm8550-fix-spmi-chnls-size-v2-2-72b5efd9dc4f@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/sm8650.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
index bad0eb84549fe..0e4bd83b2c68a 100644
--- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
@@ -3705,7 +3705,7 @@ sram@c3f0000 {
 		spmi_bus: spmi@c400000 {
 			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