This is a note to let you know that I've just added the patch titled
hwspinlock: qcom: correct MMIO max register for newer SoCs
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hwspinlock-qcom-correct-mmio-max-register-for-newer-.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0341b8fd2d7d964a0a2bfb206fc15af8a09860c2
Author: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Date: Fri Sep 9 11:20:23 2022 +0200
hwspinlock: qcom: correct MMIO max register for newer SoCs
[ Upstream commit 90cb380f9ceb811059340d06ff5fd0c0e93ecbe1 ]
Newer ARMv8 Qualcomm SoCs using 0x1000 register stride have maximum
register 0x20000 (32 mutexes * 0x1000).
Fixes: 7a1e6fb1c606 ("hwspinlock: qcom: Allow mmio usage in addition to syscon")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220909092035.223915-4-krzysztof.kozlowski@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/hwspinlock/qcom_hwspinlock.c b/drivers/hwspinlock/qcom_hwspinlock.c
index 364710966665..e49914664863 100644
--- a/drivers/hwspinlock/qcom_hwspinlock.c
+++ b/drivers/hwspinlock/qcom_hwspinlock.c
@@ -105,7 +105,7 @@ static const struct regmap_config tcsr_mutex_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
- .max_register = 0x40000,
+ .max_register = 0x20000,
.fast_io = true,
};
