63 lines
1.7 KiB
Diff
63 lines
1.7 KiB
Diff
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From dee63031aaa4377dea64113b0f6789ea053087fd Mon Sep 17 00:00:00 2001
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From: mokopatches <mokopatches@openmoko.org>
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Date: Fri, 4 Apr 2008 11:29:38 +0100
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Subject: [PATCH] asoc-neo1973_wm8753-power.patch
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---
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sound/soc/s3c24xx/neo1973_wm8753.c | 32 ++++++++++++++++++++++++++++++++
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1 files changed, 32 insertions(+), 0 deletions(-)
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diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c
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index 679b99d..0289d1d 100644
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--- a/sound/soc/s3c24xx/neo1973_wm8753.c
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+++ b/sound/soc/s3c24xx/neo1973_wm8753.c
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@@ -617,6 +617,35 @@ static int lm4857_i2c_attach(struct i2c_adapter *adap)
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return i2c_probe(adap, &addr_data, lm4857_amp_probe);
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}
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+static u8 lm4857_state;
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+
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+static int lm4857_suspend(struct i2c_client *dev, pm_message_t state)
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+{
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+ dev_dbg(&dev->dev, "lm4857_suspend\n");
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+ lm4857_state = lm4857_regs[LM4857_CTRL] & 0xf;
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+ if (lm4857_state) {
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+ lm4857_regs[LM4857_CTRL] &= 0xf0;
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+ lm4857_write_regs();
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+ }
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+ return 0;
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+}
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+
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+static int lm4857_resume(struct i2c_client *dev)
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+{
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+ if (lm4857_state) {
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+ lm4857_regs[LM4857_CTRL] |= (lm4857_state & 0x0f);
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+ lm4857_write_regs();
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+ }
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+ return 0;
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+}
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+
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+static void lm4857_shutdown(struct i2c_client *dev)
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+{
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+ dev_dbg(&dev->dev, "lm4857_shutdown\n");
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+ lm4857_regs[LM4857_CTRL] &= 0xf0;
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+ lm4857_write_regs();
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+}
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+
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/* corgi i2c codec control layer */
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static struct i2c_driver lm4857_i2c_driver = {
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.driver = {
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@@ -624,6 +653,9 @@ static struct i2c_driver lm4857_i2c_driver = {
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.owner = THIS_MODULE,
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},
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.id = I2C_DRIVERID_LM4857,
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+ .suspend = lm4857_suspend,
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+ .resume = lm4857_resume,
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+ .shutdown = lm4857_shutdown,
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.attach_adapter = lm4857_i2c_attach,
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.detach_client = lm4857_i2c_detach,
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.command = NULL,
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--
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1.5.6.5
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