target/linux/s3c24xx/patches-2.6.24/1004-asoc-neo1973_wm8753-power.patch.patch

   1 From dee63031aaa4377dea64113b0f6789ea053087fd Mon Sep 17 00:00:00 2001
   2 From: mokopatches <mokopatches@openmoko.org>
   3 Date: Fri, 4 Apr 2008 11:29:38 +0100
   4 Subject: [PATCH] asoc-neo1973_wm8753-power.patch
   5
   6 ---
   7  sound/soc/s3c24xx/neo1973_wm8753.c |   32 ++++++++++++++++++++++++++++++++
   8  1 files changed, 32 insertions(+), 0 deletions(-)
   9
  10 diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c
  11 index 679b99d..0289d1d 100644
  12 --- a/sound/soc/s3c24xx/neo1973_wm8753.c
  13 +++ b/sound/soc/s3c24xx/neo1973_wm8753.c
  14 @@ -617,6 +617,35 @@ static int lm4857_i2c_attach(struct i2c_adapter *adap)
  15         return i2c_probe(adap, &addr_data, lm4857_amp_probe);
  16  }
  17
  18 +static u8 lm4857_state;
  19 +
  20 +static int lm4857_suspend(struct i2c_client *dev, pm_message_t state)
  21 +{
  22 +       dev_dbg(&dev->dev, "lm4857_suspend\n");
  23 +       lm4857_state = lm4857_regs[LM4857_CTRL] & 0xf;
  24 +       if (lm4857_state) {
  25 +               lm4857_regs[LM4857_CTRL] &= 0xf0;
  26 +               lm4857_write_regs();
  27 +       }
  28 +       return 0;
  29 +}
  30 +
  31 +static int lm4857_resume(struct i2c_client *dev)
  32 +{
  33 +       if (lm4857_state) {
  34 +               lm4857_regs[LM4857_CTRL] |= (lm4857_state & 0x0f);
  35 +               lm4857_write_regs();
  36 +       }
  37 +       return 0;
  38 +}
  39 +
  40 +static void lm4857_shutdown(struct i2c_client *dev)
  41 +{
  42 +       dev_dbg(&dev->dev, "lm4857_shutdown\n");
  43 +       lm4857_regs[LM4857_CTRL] &= 0xf0;
  44 +       lm4857_write_regs();
  45 +}
  46 +
  47  /* corgi i2c codec control layer */
  48  static struct i2c_driver lm4857_i2c_driver = {
  49         .driver = {
  50 @@ -624,6 +653,9 @@ static struct i2c_driver lm4857_i2c_driver = {
  51                 .owner = THIS_MODULE,
  52         },
  53         .id =             I2C_DRIVERID_LM4857,
  54 +       .suspend =        lm4857_suspend,
  55 +       .resume =         lm4857_resume,
  56 +       .shutdown =       lm4857_shutdown,
  57         .attach_adapter = lm4857_i2c_attach,
  58         .detach_client =  lm4857_i2c_detach,
  59         .command =        NULL,
  60 --
  61 1.5.6.5
  62