3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Eric Nelson <eric.nelson@xxxxxxxxxxxxxxxxxxx> commit 58cc9c9a175885bbf6bae3acf18233d0a8229a84 upstream. To quote from section 1.3.1 of the data sheet: The SGTL5000 has an internal reset that is deasserted 8 SYS_MCLK cycles after all power rails have been brought up. After this time, communication can start ... 1.0us represents 8 SYS_MCLK cycles at the minimum 8.0 MHz SYS_MCLK. Signed-off-by: Eric Nelson <eric.nelson@xxxxxxxxxxxxxxxxxxx> Reviewed-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- sound/soc/codecs/sgtl5000.c | 3 +++ 1 file changed, 3 insertions(+) --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -1242,6 +1242,9 @@ static int sgtl5000_enable_regulators(st /* wait for all power rails bring up */ udelay(10); + /* Need 8 clocks before I2C accesses */ + udelay(1); + /* read chip information */ reg = snd_soc_read(codec, SGTL5000_CHIP_ID); if (((reg & SGTL5000_PARTID_MASK) >> SGTL5000_PARTID_SHIFT) != -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html