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Code Issues Releases Wiki Activity

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>
This commit is contained in:
Tomasz Figa 2013-06-13 21:22:44 +02:00
parent c095ba7224
commit e24154896e
1 changed files with 1 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/clocksource/samsung_pwm_timer.c
View File

@ -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;
}