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authorTomasz Figa <tomasz.figa@gmail.com>2013-06-13 23:22:44 +0400
committerTomasz Figa <tomasz.figa@gmail.com>2013-08-06 03:21:40 +0400
commite24154896e2f60b0c20bda492d662ad77ffa5c32 (patch)
treef3c1bc9bd5c60ad96d14c9f24db5a45ffb94da76 /drivers/clocksource/samsung_pwm_timer.c
parentc095ba7224d8edc71dcef0d655911399a8bd4a3f (diff)
downloadlinux-e24154896e2f60b0c20bda492d662ad77ffa5c32.tar.xz
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 <tomasz.figa@gmail.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Mark Brown <broonie@linaro.org> Tested-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/clocksource/samsung_pwm_timer.c')
-rw-r--r--drivers/clocksource/samsung_pwm_timer.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index 584b5472eea3..3fa5b07fa50d 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -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;
}