diff options
| author | Ondrej Zary <linux@rainbow-software.org> | 2015-11-01 14:32:03 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-11-01 17:40:49 +0100 |
| commit | 030270ba1aa2072d2967c11129c67d9de9aa762b (patch) | |
| tree | 60abeb41e64c62775cb3232e75fdea0591a18b61 /sound/pci/maestro3.c | |
| parent | d1482fb335b8f3f5e667df72b043c5b3d9d03106 (diff) | |
| download | lwn-030270ba1aa2072d2967c11129c67d9de9aa762b.tar.gz lwn-030270ba1aa2072d2967c11129c67d9de9aa762b.zip | |
ALSA: maestro3: Enable docking support for Dell Latitude C810
Enable I2S docking for Dell Latitude C810.
This allows the audio output on C/Port II to work (and probably also
the audio inputs on C/Dock II).
The volume can't be adjusted - none of the mixer controls currently
supported affects the I2S output (they belong to the STAC9721/23 AC'97
codec responsible for the laptop internal connectors & speakers).
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/maestro3.c')
| -rw-r--r-- | sound/pci/maestro3.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c index 72e89cedc52d..965d5c6f2fa0 100644 --- a/sound/pci/maestro3.c +++ b/sound/pci/maestro3.c @@ -1932,12 +1932,19 @@ snd_m3_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) } -static void snd_m3_remote_codec_config(int io, int isremote) +static void snd_m3_remote_codec_config(struct snd_m3 *chip, int isremote) { + int io = chip->iobase; + u16 tmp; + isremote = isremote ? 1 : 0; - outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote, - io + RING_BUS_CTRL_B); + tmp = inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK; + /* enable dock on Dell Latitude C810 */ + if (chip->pci->subsystem_vendor == 0x1028 && + chip->pci->subsystem_device == 0x00e5) + tmp |= M3I_DOCK_ENABLE; + outw(tmp | isremote, io + RING_BUS_CTRL_B); outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote, io + SDO_OUT_DEST_CTRL); outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote, @@ -1989,7 +1996,7 @@ static void snd_m3_ac97_reset(struct snd_m3 *chip) if (!chip->irda_workaround) dir |= 0x10; /* assuming pci bus master? */ - snd_m3_remote_codec_config(io, 0); + snd_m3_remote_codec_config(chip, 0); outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A); udelay(20); |