diff options
| author | Matthias Kaehlcke <matthias@kaehlcke.net> | 2008-06-09 23:24:08 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-07-03 15:39:56 (GMT) |
| commit | d41d219e8154885105d631661e5a86ba6461fb81 (patch) | |
| tree | ed7bc6400ae2870143af9359ba6baa0b02e38711 /arch/arm/mach-omap1 | |
| parent | 3c093f9f182eef6a8dc535f2c62b36a0320d0db1 (diff) | |
| download | linux-d41d219e8154885105d631661e5a86ba6461fb81.tar.xz | |
[ARM] OMAP1: N770: Convert audio_pwr_sem in a mutex
ARM: OMAP1: N770: The semaphore audio_pwr_sem is used as a
mutex. Convert it to the mutex API
[akpm@linux-foundation.org: include mutex.h]
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-omap1')
| -rw-r--r-- | arch/arm/mach-omap1/board-nokia770.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c index bcb984f..3f39e0e 100644 --- a/arch/arm/mach-omap1/board-nokia770.c +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -10,6 +10,7 @@ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/mutex.h> #include <linux/platform_device.h> #include <linux/input.h> #include <linux/clk.h> @@ -202,7 +203,7 @@ static struct omap_board_config_kernel nokia770_config[] __initdata = { #define AMPLIFIER_CTRL_GPIO 58 static struct clk *dspxor_ck; -static DECLARE_MUTEX(audio_pwr_sem); +static DEFINE_MUTEX(audio_pwr_lock); /* * audio_pwr_state * +--+-------------------------+---------------------------------------+ @@ -218,7 +219,7 @@ static DECLARE_MUTEX(audio_pwr_sem); static int audio_pwr_state = -1; /* - * audio_pwr_up / down should be called under audio_pwr_sem + * audio_pwr_up / down should be called under audio_pwr_lock */ static void nokia770_audio_pwr_up(void) { @@ -237,11 +238,11 @@ static void nokia770_audio_pwr_up(void) static void codec_delayed_power_down(struct work_struct *work) { - down(&audio_pwr_sem); + mutex_lock(&audio_pwr_lock); if (audio_pwr_state == -1) aic23_power_down(); clk_disable(dspxor_ck); - up(&audio_pwr_sem); + mutex_unlock(&audio_pwr_lock); } static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down); @@ -258,19 +259,19 @@ static void nokia770_audio_pwr_down(void) static int nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage) { - down(&audio_pwr_sem); + mutex_lock(&audio_pwr_lock); if (audio_pwr_state == -1) nokia770_audio_pwr_up(); /* force audio_pwr_state = 0, even if it was 1. */ audio_pwr_state = 0; - up(&audio_pwr_sem); + mutex_unlock(&audio_pwr_lock); return 0; } static int nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage) { - down(&audio_pwr_sem); + mutex_lock(&audio_pwr_lock); switch (stage) { case 1: if (audio_pwr_state == 0) @@ -283,7 +284,7 @@ nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage) } break; } - up(&audio_pwr_sem); + mutex_unlock(&audio_pwr_lock); return 0; } |