[PATCH 5.10 036/147] arm64: dts: qcom: sdm630: fix gpu_speed_bin size

Sasha Levin
2026-02-28T18:18:04Z

From: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

[ Upstream commit e814796dfcae8905682ac3ac2dd57f512a9f6726 ]

Historically sdm630.dtsi has used 1 byte length for the gpu_speed_bin
cell, although it spans two bytes (offset 5, size 7 bits). It was being
accepted by the kernel because before the commit 7a06ef751077 ("nvmem:
core: fix bit offsets of more than one byte") the kernel didn't have
length check. After this commit nvmem core rejects QFPROM on sdm630 /
sdm660, making GPU and USB unusable on those platforms.

Set the size of the gpu_speed_bin cell to 2 bytes, fixing the parsing
error. While we are at it, update the length to 8 bits as pointed out by
Alexey Minnekhanov.

Fixes: b190fb010664 ("arm64: dts: qcom: sdm630: Add sdm630 dts file")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
Link: https://lore.kernel.org/r/20251211-sdm630-fix-gpu-v2-1-92f0e736dba0@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/boot/dts/qcom/sdm630.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi
index c39e67fa64650..cc43d014c5038 100644
--- a/arch/arm64/boot/dts/qcom/sdm630.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi
@@ -467,8 +467,8 @@ qusb2_hstx_trim: hstx-trim@240 {
};

gpu_speed_bin: gpu-speed-bin@41a0 {
- reg = <0x41a2 0x1>;
- bits = <5 7>;
+ reg = <0x41a2 0x2>;
+ bits = <5 8>;
};
};

--
2.51.0