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path: root/sound/soc/codecs/cs4270.c
AgeCommit message (Collapse)Author
2008-01-27i2c: normal_i2c can be made const (remaining drivers)Jean Delvare
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-11-20[ALSA] fix private data pointer calculation in CS4270 driverTimur Tabi
Fix the calculation of the private_data pointer in the CS4270 driver. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-16[ALSA] Fix CS4270 volume control and optimize I2C operationsTimur Tabi
The volume control for the CS4270 ASoC driver was inverted - raising the volume level with alsamixer would decrease the actual volume. This patch also improves the performance of the I2C code (used to change register settings) by only performing an I2C write if the new value is different from the value that's in the register cache. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] pcm: add snd_pcm_rate_to_rate_bit() helperClemens Ladisch
Add a snd_pcm_rate_to_rate_bit() function to factor out common code used by several drivers. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] CS4270 driver does not compile with I2C disabledTimur Tabi
Fix compilation errors with the CS4270 when I2C is not enabled. Updated some comments to indicate that that stand-alone mode is not fully implemented, because there is no mechanism for the CS4270 driver and the machine driver to communicate the values of various input pins. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] ASoC CS4270 codec device driverTimur Tabi
This patch adds ALSA SoC support for the Cirrus Logic CS4270 codec. The following features are suppored: 1) Stand-alone and software mode 2) Software mode via I2C only 3) Master mode, not Slave 4) No power management Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>