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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2024-02-18 18:41:37 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-04-03 15:28:50 +0200
commitdf13f43686f3d75f0c8273f70467ed33bdfe27a8 (patch)
tree0c9594e8aa7c32231a7210218b4d654fecd06173
parent0982fd6bf0b822876f2e93ec782c4c28a3f85535 (diff)
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clocksource/drivers/arm_global_timer: Fix maximum prescaler value
[ Upstream commit b34b9547cee41575a4fddf390f615570759dc999 ] The prescaler in the "Global Timer Control Register bit assignments" is documented to use bits [15:8], which means that the maximum prescaler register value is 0xff. Fixes: 171b45a4a70e ("clocksource/drivers/arm_global_timer: Implement rate compensation whenever source clock changes") Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20240218174138.1942418-2-martin.blumenstingl@googlemail.com Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/clocksource/arm_global_timer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/clocksource/arm_global_timer.c b/drivers/clocksource/arm_global_timer.c
index 44a61dc6f932..e1c773bb5535 100644
--- a/drivers/clocksource/arm_global_timer.c
+++ b/drivers/clocksource/arm_global_timer.c
@@ -32,7 +32,7 @@
#define GT_CONTROL_IRQ_ENABLE BIT(2) /* banked */
#define GT_CONTROL_AUTO_INC BIT(3) /* banked */
#define GT_CONTROL_PRESCALER_SHIFT 8
-#define GT_CONTROL_PRESCALER_MAX 0xF
+#define GT_CONTROL_PRESCALER_MAX 0xFF
#define GT_CONTROL_PRESCALER_MASK (GT_CONTROL_PRESCALER_MAX << \
GT_CONTROL_PRESCALER_SHIFT)