ASoC: dapm: Add output driver widget

In some cases it was not possible to follow the appropiate power
ON/OFF sequence like in cases where the PGA needs to be enabled
before the driver and disabled before the PGA for pop reduction.

Add a widget to support output driver (speaker, haptic, vibra, etc)
drivers where power ON/OFF ordering is important.

Signed-off-by: Margarita Olaya Cabrera <magi.olaya@ti.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 041e98b..2f76a51 100644 (file)
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -71,6 +71,10 @@
         wcontrols, wncontrols) \
 {      .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
        .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols}
+#define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\
+        wcontrols, wncontrols) \
+{      .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
+       .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols}
 #define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \
         wcontrols, wncontrols)\
 {      .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
@@ -115,6 +119,11 @@
 {      .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
        .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
        .event = wevent, .event_flags = wflags}
+#define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \
+       wncontrols, wevent, wflags) \
+{      .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
+       .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
+       .event = wevent, .event_flags = wflags}
 #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
        wncontrols, wevent, wflags) \
 {      .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
@@ -368,6 +377,7 @@ enum snd_soc_dapm_type {
        snd_soc_dapm_mixer,                     /* mixes several analog signals together */
        snd_soc_dapm_mixer_named_ctl,           /* mixer with named controls */
        snd_soc_dapm_pga,                       /* programmable gain/attenuation (volume) */
+       snd_soc_dapm_out_drv,                   /* output driver */
        snd_soc_dapm_adc,                       /* analog to digital converter */
        snd_soc_dapm_dac,                       /* digital to analog converter */
        snd_soc_dapm_micbias,           /* microphone bias (power) */

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index b521a13..3d310af 100644 (file)
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -62,6 +62,7 @@ static int dapm_up_seq[] = {
        [snd_soc_dapm_mixer_named_ctl] = 7,
        [snd_soc_dapm_pga] = 8,
        [snd_soc_dapm_adc] = 9,
+       [snd_soc_dapm_out_drv] = 10,
        [snd_soc_dapm_hp] = 10,
        [snd_soc_dapm_spk] = 10,
        [snd_soc_dapm_post] = 11,
@@ -72,6 +73,7 @@ static int dapm_down_seq[] = {
        [snd_soc_dapm_adc] = 1,
        [snd_soc_dapm_hp] = 2,
        [snd_soc_dapm_spk] = 2,
+       [snd_soc_dapm_out_drv] = 2,
        [snd_soc_dapm_pga] = 4,
        [snd_soc_dapm_mixer_named_ctl] = 5,
        [snd_soc_dapm_mixer] = 5,
@@ -235,6 +237,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
        break;
        /* does not effect routing - always connected */
        case snd_soc_dapm_pga:
+       case snd_soc_dapm_out_drv:
        case snd_soc_dapm_output:
        case snd_soc_dapm_adc:
        case snd_soc_dapm_input:
@@ -1250,6 +1253,7 @@ static ssize_t dapm_widget_show(struct device *dev,
                case snd_soc_dapm_dac:
                case snd_soc_dapm_adc:
                case snd_soc_dapm_pga:
+               case snd_soc_dapm_out_drv:
                case snd_soc_dapm_mixer:
                case snd_soc_dapm_mixer_named_ctl:
                case snd_soc_dapm_supply:
@@ -1428,6 +1432,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
        case snd_soc_dapm_adc:
        case snd_soc_dapm_dac:
        case snd_soc_dapm_pga:
+       case snd_soc_dapm_out_drv:
        case snd_soc_dapm_input:
        case snd_soc_dapm_output:
        case snd_soc_dapm_micbias:
@@ -1545,6 +1550,7 @@ int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm)
                        w->power_check = dapm_dac_check_power;
                        break;
                case snd_soc_dapm_pga:
+               case snd_soc_dapm_out_drv:
                        w->power_check = dapm_generic_check_power;
                        dapm_new_pga(dapm, w);
                        break;