From: Iliyan Malchev <malchev@google.com>
Date: Fri, 5 Nov 2010 20:41:17 +0000 (-0700)
Subject: Merge branch 'linux-tegra-2.6.36' into android-tegra-2.6.36
X-Git-Tag: firefly_0821_release~9833^2~121
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e143639c53cd1274f8f5f4f461b01d3c6e21ba20;p=firefly-linux-kernel-4.4.55.git

Merge branch 'linux-tegra-2.6.36' into android-tegra-2.6.36

Conflicts:
	arch/arm/mach-tegra/tegra_i2s_audio.c
	arch/arm/mach-tegra/tegra_spdif_audio.c

Signed-off-by: Iliyan Malchev <malchev@google.com>
---

e143639c53cd1274f8f5f4f461b01d3c6e21ba20
diff --cc arch/arm/mach-tegra/tegra_i2s_audio.c
index 9ac5cba7cd8c,d62bf2342591..f8a67f1e2043
--- a/arch/arm/mach-tegra/tegra_i2s_audio.c
+++ b/arch/arm/mach-tegra/tegra_i2s_audio.c
@@@ -91,8 -92,7 +93,9 @@@ struct audio_stream 
  	struct tegra_dma_req dma_req;
  
  	struct pm_qos_request_list pm_qos;
+ 	struct work_struct allow_suspend_work;
 +	struct wake_lock wake_lock;
 +	char wake_lock_name[100];
  };
  
  struct i2s_pio_stats {
@@@ -221,17 -221,24 +224,26 @@@ static inline struct audio_driver_stat
  static inline void prevent_suspend(struct audio_stream *as)
  {
  	pr_debug("%s\n", __func__);
+ 	cancel_work_sync(&as->allow_suspend_work);
 +	wake_lock(&as->wake_lock);
  	pm_qos_update_request(&as->pm_qos, 0);
  }
  
- static inline void allow_suspend(struct audio_stream *as)
+ static void allow_suspend_worker(struct work_struct *w)
  {
+ 	struct audio_stream *as = container_of(w,
+ 			struct audio_stream, allow_suspend_work);
+ 
  	pr_debug("%s\n", __func__);
  	pm_qos_update_request(&as->pm_qos, PM_QOS_DEFAULT_VALUE);
 +	wake_unlock(&as->wake_lock);
  }
  
+ static inline void allow_suspend(struct audio_stream *as)
+ {
+ 	schedule_work(&as->allow_suspend_work);
+ }
+ 
  #define I2S_I2S_FIFO_TX_BUSY	I2S_I2S_STATUS_FIFO1_BSY
  #define I2S_I2S_FIFO_TX_QS	I2S_I2S_STATUS_QS_FIFO1
  #define I2S_I2S_FIFO_TX_ERR	I2S_I2S_STATUS_FIFO1_ERR
diff --cc arch/arm/mach-tegra/tegra_spdif_audio.c
index bd99440a0188,1c22e4537876..fd96f2abf5eb
--- a/arch/arm/mach-tegra/tegra_spdif_audio.c
+++ b/arch/arm/mach-tegra/tegra_spdif_audio.c
@@@ -44,9 -44,9 +44,10 @@@
  #include <linux/ktime.h>
  #include <linux/sysfs.h>
  #include <linux/pm_qos_params.h>
 +#include <linux/wakelock.h>
  #include <linux/delay.h>
  #include <linux/tegra_audio.h>
+ #include <linux/workqueue.h>
  
  #include <mach/dma.h>
  #include <mach/iomap.h>
@@@ -89,8 -89,7 +90,9 @@@ struct audio_stream 
  	struct tegra_dma_req dma_req;
  
  	struct pm_qos_request_list pm_qos;
+ 	struct work_struct allow_suspend_work;
 +	struct wake_lock wake_lock;
 +	char wake_lock_name[100];
  };
  
  struct spdif_pio_stats {
@@@ -165,17 -164,24 +167,26 @@@ static inline struct audio_driver_stat
  static inline void prevent_suspend(struct audio_stream *as)
  {
  	pr_debug("%s\n", __func__);
+ 	cancel_work_sync(&as->allow_suspend_work);
 +	wake_lock(&as->wake_lock);
  	pm_qos_update_request(&as->pm_qos, 0);
  }
  
- static inline void allow_suspend(struct audio_stream *as)
+ static void allow_suspend_worker(struct work_struct *w)
  {
+ 	struct audio_stream *as = container_of(w,
+ 			struct audio_stream, allow_suspend_work);
+ 
  	pr_debug("%s\n", __func__);
  	pm_qos_update_request(&as->pm_qos, PM_QOS_DEFAULT_VALUE);
 +	wake_unlock(&as->wake_lock);
  }
  
+ static inline void allow_suspend(struct audio_stream *as)
+ {
+ 	schedule_work(&as->allow_suspend_work);
+ }
+ 
  #define I2S_I2S_FIFO_TX_BUSY	I2S_I2S_STATUS_FIFO1_BSY
  #define I2S_I2S_FIFO_TX_QS	I2S_I2S_STATUS_QS_FIFO1
  #define I2S_I2S_FIFO_TX_ERR	I2S_I2S_STATUS_FIFO1_ERR
@@@ -1344,12 -1348,9 +1355,13 @@@ static int tegra_spdif_probe(struct pla
  	if (rc < 0)
  		return rc;
  
+ 	INIT_WORK(&state->out.allow_suspend_work, allow_suspend_worker);
  	pm_qos_add_request(&state->out.pm_qos, PM_QOS_CPU_DMA_LATENCY,
  				PM_QOS_DEFAULT_VALUE);
 +	snprintf(state->out.wake_lock_name, sizeof(state->out.wake_lock_name),
 +		"tegra-audio-spdif");
 +	wake_lock_init(&state->out.wake_lock, WAKE_LOCK_SUSPEND,
 +			state->out.wake_lock_name);
  
  	if (request_irq(state->irq, spdif_interrupt,
  			IRQF_DISABLED, state->pdev->name, state) < 0) {