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clocksource: samsung_pwm_timer: Do not request PWM mem region

PATCH New Tomasz Figa 3 participants 3 messages Jun 13, 2013 – Jun 15, 2013

Subsystems (2)
Arm Samsung Exynos Clocksource, clockevent drivers
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Tomasz Figa

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PATCH 1/1 clocksource: samsung_pwm_timer: Do not request PWM mem region

PWM registers are shared between clocksource and PWM drivers and so can not be claimed for exclusive use.

Signed-off-by Tomasz Figa <[email protected]>
---
 drivers/clocksource/samsung_pwm_timer.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)
drivers/clocksource/samsung_pwm_timer.c +1 -10
index 0234c8d..553115b 100644
@@ -404,7 +404,6 @@ void __init samsung_pwm_clocksource_init(void __iomem *base,
 static void __init samsung_pwm_alloc(struct device_node *np,
 				     const struct samsung_pwm_variant *variant)
 {
-	struct resource res;
 	struct property *prop;
 	const __be32 *cur;
 	u32 val;

@@ -423,17 +422,9 @@ static void __init samsung_pwm_alloc(struct device_node *np,
 		pwm.variant.output_mask |= 1 << val;
 	}
 
-	of_address_to_resource(np, 0, &res);
-	if (!request_mem_region(res.start,
-				resource_size(&res), "samsung-pwm")) {
-		pr_err("%s: failed to request IO mem region\n", __func__);
-		return;
-	}
-
-	pwm.base = ioremap(res.start, resource_size(&res));
+	pwm.base = of_iomap(np, 0);
 	if (!pwm.base) {
 		pr_err("%s: failed to map PWM registers\n", __func__);
-		release_mem_region(res.start, resource_size(&res));
 		return;
 	}
Signature · 1 line
1.8.2.1