diff options
| author | Tomasz Figa <t.figa@samsung.com> | 2013-08-26 19:08:58 +0200 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2013-09-06 13:33:05 -0700 |
| commit | a1fa6f503aad8da91c4cc8dd0e71d2789d78d3f6 (patch) | |
| tree | d9d875b4a06a6ddfe5ed1abf6aedf7ab31c8aa98 /drivers/clocksource | |
| parent | ec06dbe773084f9dfadd38d46d7b783d575c2306 (diff) | |
| download | linux-a1fa6f503aad8da91c4cc8dd0e71d2789d78d3f6.tar.bz2 | |
clocksource: samsung_pwm_timer: Get clock from device tree
When booting with device tree static clkdev aliases should not be used.
This patch modifies the samsung_pwm_timer driver to use DT-based clock
lookup when booting with device tree.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/samsung_pwm_timer.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c index 584b5472eea3..32950c3ed374 100644 --- a/drivers/clocksource/samsung_pwm_timer.c +++ b/drivers/clocksource/samsung_pwm_timer.c @@ -349,10 +349,6 @@ static void __init samsung_clocksource_init(void) static void __init samsung_timer_resources(void) { - pwm.timerclk = clk_get(NULL, "timers"); - if (IS_ERR(pwm.timerclk)) - panic("failed to get timers clock for timer"); - clk_prepare_enable(pwm.timerclk); pwm.tcnt_max = (1UL << pwm.variant.bits) - 1; @@ -397,6 +393,10 @@ void __init samsung_pwm_clocksource_init(void __iomem *base, memcpy(&pwm.variant, variant, sizeof(pwm.variant)); memcpy(pwm.irq, irqs, SAMSUNG_PWM_NUM * sizeof(*irqs)); + pwm.timerclk = clk_get(NULL, "timers"); + if (IS_ERR(pwm.timerclk)) + panic("failed to get timers clock for timer"); + _samsung_pwm_clocksource_init(); } @@ -437,6 +437,10 @@ static void __init samsung_pwm_alloc(struct device_node *np, return; } + pwm.timerclk = of_clk_get_by_name(np, "timers"); + if (IS_ERR(pwm.timerclk)) + panic("failed to get timers clock for timer"); + _samsung_pwm_clocksource_init(); } |