clocksource/drivers/samsung_pwm: Constify source IO memory

The 'source_reg' IO memory is only read, so the pointer can point to
const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210506202729.157260-4-krzysztof.kozlowski@canonical.com

diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index 55e2f9f..6e46781 100644 (file)
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -61,7 +61,7 @@ EXPORT_SYMBOL(samsung_pwm_lock);
 
 struct samsung_pwm_clocksource {
        void __iomem *base;
-       void __iomem *source_reg;
+       const void __iomem *source_reg;
        unsigned int irq[SAMSUNG_PWM_NUM];
        struct samsung_pwm_variant variant;