* [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases
@ 2011-02-10 13:27 Dimitris Papastamos
2011-02-10 13:27 ` [PATCH 2/2] ASoC: WM8994: Improve playback robustness Dimitris Papastamos
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Dimitris Papastamos @ 2011-02-10 13:27 UTC (permalink / raw)
To: Mark Brown, Liam Girdwood; +Cc: alsa-devel, patches
Ensure that on disabling certain registers such as AIF1DAC1L,
AIF1DAC1R etc. the AIF1CLK and AIF2CLK remain enabled. Similarly
when enabling those registers, AIF1CLK and AIF2CLK will remain
disabled.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
---
sound/soc/codecs/wm8994.c | 142 ++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 133 insertions(+), 9 deletions(-)
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 0024b4c..055ad8f 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -107,6 +107,9 @@ struct wm8994_priv {
int revision;
struct wm8994_pdata *pdata;
+
+ unsigned int aif1clk_enable:1;
+ unsigned int aif2clk_enable:1;
};
static int wm8994_readable(struct snd_soc_codec *codec, unsigned int reg)
@@ -1004,6 +1007,82 @@ static void wm8994_update_class_w(struct snd_soc_codec *codec)
}
}
+static int late_enable_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ if (wm8994->aif1clk_enable)
+ snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1,
+ WM8994_AIF1CLK_ENA_MASK,
+ WM8994_AIF1CLK_ENA);
+ if (wm8994->aif2clk_enable)
+ snd_soc_update_bits(codec, WM8994_AIF2_CLOCKING_1,
+ WM8994_AIF2CLK_ENA_MASK,
+ WM8994_AIF2CLK_ENA);
+ break;
+ }
+
+ return 0;
+}
+
+static int late_disable_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMD:
+ if (wm8994->aif1clk_enable) {
+ snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1,
+ WM8994_AIF1CLK_ENA_MASK, 0);
+ wm8994->aif1clk_enable = 0;
+ }
+ if (wm8994->aif2clk_enable) {
+ snd_soc_update_bits(codec, WM8994_AIF2_CLOCKING_1,
+ WM8994_AIF2CLK_ENA_MASK, 0);
+ wm8994->aif2clk_enable = 0;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static int aif1clk_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ wm8994->aif1clk_enable = 1;
+ break;
+ }
+
+ return 0;
+}
+
+static int aif2clk_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ wm8994->aif2clk_enable = 1;
+ break;
+ }
+
+ return 0;
+}
+
static const char *hp_mux_text[] = {
"Mixer",
"DAC",
@@ -1272,6 +1351,29 @@ static const struct soc_enum aif2dacr_src_enum =
static const struct snd_kcontrol_new aif2dacr_src_mux =
SOC_DAPM_ENUM("AIF2DACR Mux", aif2dacr_src_enum);
+static const struct snd_soc_dapm_widget wm8994_lateclk_revd_widgets[] = {
+SND_SOC_DAPM_SUPPLY("AIF1CLK", SND_SOC_NOPM, 0, 0, aif1clk_ev,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+SND_SOC_DAPM_SUPPLY("AIF2CLK", SND_SOC_NOPM, 0, 0, aif2clk_ev,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+
+SND_SOC_DAPM_PGA_E("Late DAC1L Enable PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
+ late_enable_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_PGA_E("Late DAC1R Enable PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
+ late_enable_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_PGA_E("Late DAC2L Enable PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
+ late_enable_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_PGA_E("Late DAC2R Enable PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
+ late_enable_ev, SND_SOC_DAPM_PRE_PMU),
+
+SND_SOC_DAPM_POST("Late Disable PGA", late_disable_ev)
+};
+
+static const struct snd_soc_dapm_widget wm8994_lateclk_widgets[] = {
+SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8994_AIF1_CLOCKING_1, 0, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8994_AIF2_CLOCKING_1, 0, 0, NULL, 0)
+};
+
static const struct snd_soc_dapm_widget wm8994_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("DMIC1DAT"),
SND_SOC_DAPM_INPUT("DMIC2DAT"),
@@ -1284,9 +1386,6 @@ SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8994_CLOCKING_1, 3, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8994_CLOCKING_1, 2, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("DSPINTCLK", WM8994_CLOCKING_1, 1, 0, NULL, 0),
-SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8994_AIF1_CLOCKING_1, 0, 0, NULL, 0),
-SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8994_AIF2_CLOCKING_1, 0, 0, NULL, 0),
-
SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", NULL,
0, WM8994_POWER_MANAGEMENT_4, 9, 0),
SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", NULL,
@@ -1516,14 +1615,12 @@ static const struct snd_soc_dapm_route intercon[] = {
{ "AIF2ADC Mux", "AIF3DACDAT", "AIF3ADCDAT" },
/* DAC1 inputs */
- { "DAC1L", NULL, "DAC1L Mixer" },
{ "DAC1L Mixer", "AIF2 Switch", "AIF2DACL" },
{ "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
{ "DAC1L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
{ "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },
{ "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
- { "DAC1R", NULL, "DAC1R Mixer" },
{ "DAC1R Mixer", "AIF2 Switch", "AIF2DACR" },
{ "DAC1R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
{ "DAC1R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
@@ -1532,7 +1629,6 @@ static const struct snd_soc_dapm_route intercon[] = {
/* DAC2/AIF2 outputs */
{ "AIF2ADCL", NULL, "AIF2DAC2L Mixer" },
- { "DAC2L", NULL, "AIF2DAC2L Mixer" },
{ "AIF2DAC2L Mixer", "AIF2 Switch", "AIF2DACL" },
{ "AIF2DAC2L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
{ "AIF2DAC2L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
@@ -1540,7 +1636,6 @@ static const struct snd_soc_dapm_route intercon[] = {
{ "AIF2DAC2L Mixer", "Right Sidetone Switch", "Right Sidetone" },
{ "AIF2ADCR", NULL, "AIF2DAC2R Mixer" },
- { "DAC2R", NULL, "AIF2DAC2R Mixer" },
{ "AIF2DAC2R Mixer", "AIF2 Switch", "AIF2DACR" },
{ "AIF2DAC2R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
{ "AIF2DAC2R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
@@ -1584,6 +1679,24 @@ static const struct snd_soc_dapm_route intercon[] = {
{ "Right Headphone Mux", "DAC", "DAC1R" },
};
+static const struct snd_soc_dapm_route wm8994_lateclk_revd_intercon[] = {
+ { "DAC1L", NULL, "Late DAC1L Enable PGA" },
+ { "Late DAC1L Enable PGA", NULL, "DAC1L Mixer" },
+ { "DAC1R", NULL, "Late DAC1R Enable PGA" },
+ { "Late DAC1R Enable PGA", NULL, "DAC1R Mixer" },
+ { "DAC2L", NULL, "Late DAC2L Enable PGA" },
+ { "Late DAC2L Enable PGA", NULL, "AIF2DAC2L Mixer" },
+ { "DAC2R", NULL, "Late DAC2R Enable PGA" },
+ { "Late DAC2R Enable PGA", NULL, "AIF2DAC2R Mixer" }
+};
+
+static const struct snd_soc_dapm_route wm8994_lateclk_intercon[] = {
+ { "DAC1L", NULL, "DAC1L Mixer" },
+ { "DAC1R", NULL, "DAC1R Mixer" },
+ { "DAC2L", NULL, "AIF2DAC2L Mixer" },
+ { "DAC2R", NULL, "AIF2DAC2R Mixer" },
+};
+
static const struct snd_soc_dapm_route wm8994_revd_intercon[] = {
{ "AIF1DACDAT", NULL, "AIF2DACDAT" },
{ "AIF2DACDAT", NULL, "AIF1DACDAT" },
@@ -3125,6 +3238,12 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
case WM8994:
snd_soc_dapm_new_controls(dapm, wm8994_specific_dapm_widgets,
ARRAY_SIZE(wm8994_specific_dapm_widgets));
+ if (wm8994->revision < 4)
+ snd_soc_dapm_new_controls(dapm, wm8994_lateclk_revd_widgets,
+ ARRAY_SIZE(wm8994_lateclk_revd_widgets));
+ else
+ snd_soc_dapm_new_controls(dapm, wm8994_lateclk_widgets,
+ ARRAY_SIZE(wm8994_lateclk_widgets));
break;
case WM8958:
snd_soc_add_controls(codec, wm8958_snd_controls,
@@ -3143,10 +3262,15 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
snd_soc_dapm_add_routes(dapm, wm8994_intercon,
ARRAY_SIZE(wm8994_intercon));
- if (wm8994->revision < 4)
+ if (wm8994->revision < 4) {
snd_soc_dapm_add_routes(dapm, wm8994_revd_intercon,
ARRAY_SIZE(wm8994_revd_intercon));
-
+ snd_soc_dapm_add_routes(dapm, wm8994_lateclk_revd_intercon,
+ ARRAY_SIZE(wm8994_lateclk_revd_intercon));
+ } else {
+ snd_soc_dapm_add_routes(dapm, wm8994_lateclk_intercon,
+ ARRAY_SIZE(wm8994_lateclk_intercon));
+ }
break;
case WM8958:
snd_soc_dapm_add_routes(dapm, wm8958_intercon,
--
1.7.3.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH 2/2] ASoC: WM8994: Improve playback robustness
2011-02-10 13:27 [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases Dimitris Papastamos
@ 2011-02-10 13:27 ` Dimitris Papastamos
2011-02-10 23:59 ` [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases Liam Girdwood
2011-02-11 11:15 ` Mark Brown
2 siblings, 0 replies; 4+ messages in thread
From: Dimitris Papastamos @ 2011-02-10 13:27 UTC (permalink / raw)
To: Mark Brown, Liam Girdwood; +Cc: alsa-devel, patches
On WM8994 revision D and earlier ensure proper playback robustness
as some rare use cases can trigger issues.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
---
sound/soc/codecs/wm8994.c | 60 +++++++++++++++++++++++++++++++++++++++-----
1 files changed, 53 insertions(+), 7 deletions(-)
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 055ad8f..e1ad5f9 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1083,6 +1083,17 @@ static int aif2clk_ev(struct snd_soc_dapm_widget *w,
return 0;
}
+static int dac_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ unsigned int mask = 1 << w->shift;
+
+ snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
+ mask, mask);
+ return 0;
+}
+
static const char *hp_mux_text[] = {
"Mixer",
"DAC",
@@ -1374,6 +1385,24 @@ SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8994_AIF1_CLOCKING_1, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8994_AIF2_CLOCKING_1, 0, 0, NULL, 0)
};
+static const struct snd_soc_dapm_widget wm8994_dac_revd_widgets[] = {
+SND_SOC_DAPM_DAC_E("DAC2L", NULL, SND_SOC_NOPM, 3, 0,
+ dac_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_DAC_E("DAC2R", NULL, SND_SOC_NOPM, 2, 0,
+ dac_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_DAC_E("DAC1L", NULL, SND_SOC_NOPM, 1, 0,
+ dac_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_DAC_E("DAC1R", NULL, SND_SOC_NOPM, 0, 0,
+ dac_ev, SND_SOC_DAPM_PRE_PMU),
+};
+
+static const struct snd_soc_dapm_widget wm8994_dac_widgets[] = {
+SND_SOC_DAPM_DAC("DAC2L", NULL, WM8994_POWER_MANAGEMENT_5, 3, 0),
+SND_SOC_DAPM_DAC("DAC1R", NULL, WM8994_POWER_MANAGEMENT_5, 2, 0),
+SND_SOC_DAPM_DAC("DAC1L", NULL, WM8994_POWER_MANAGEMENT_5, 1, 0),
+SND_SOC_DAPM_DAC("DAC1R", NULL, WM8994_POWER_MANAGEMENT_5, 0, 0),
+};
+
static const struct snd_soc_dapm_widget wm8994_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("DMIC1DAT"),
SND_SOC_DAPM_INPUT("DMIC2DAT"),
@@ -1471,11 +1500,6 @@ SND_SOC_DAPM_ADC("ADCR", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_MUX("ADCL Mux", WM8994_POWER_MANAGEMENT_4, 1, 0, &adcl_mux),
SND_SOC_DAPM_MUX("ADCR Mux", WM8994_POWER_MANAGEMENT_4, 0, 0, &adcr_mux),
-SND_SOC_DAPM_DAC("DAC2L", NULL, WM8994_POWER_MANAGEMENT_5, 3, 0),
-SND_SOC_DAPM_DAC("DAC2R", NULL, WM8994_POWER_MANAGEMENT_5, 2, 0),
-SND_SOC_DAPM_DAC("DAC1L", NULL, WM8994_POWER_MANAGEMENT_5, 1, 0),
-SND_SOC_DAPM_DAC("DAC1R", NULL, WM8994_POWER_MANAGEMENT_5, 0, 0),
-
SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, &hpl_mux),
SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, &hpr_mux),
@@ -2627,6 +2651,23 @@ static int wm8994_resume(struct snd_soc_codec *codec)
{
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
int i, ret;
+ unsigned int val, mask;
+
+ if (wm8994->revision < 4) {
+ /* force a HW read */
+ codec->cache_bypass = 1;
+ val = snd_soc_read(codec, WM8994_POWER_MANAGEMENT_5);
+ codec->cache_bypass = 0;
+
+ /* modify the cache only */
+ codec->cache_only = 1;
+ mask = WM8994_DAC1R_ENA | WM8994_DAC1L_ENA |
+ WM8994_DAC2R_ENA | WM8994_DAC2L_ENA;
+ val &= mask;
+ snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
+ mask, val);
+ codec->cache_only = 0;
+ }
/* Restore the registers */
ret = snd_soc_cache_sync(codec);
@@ -3238,12 +3279,17 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
case WM8994:
snd_soc_dapm_new_controls(dapm, wm8994_specific_dapm_widgets,
ARRAY_SIZE(wm8994_specific_dapm_widgets));
- if (wm8994->revision < 4)
+ if (wm8994->revision < 4) {
snd_soc_dapm_new_controls(dapm, wm8994_lateclk_revd_widgets,
ARRAY_SIZE(wm8994_lateclk_revd_widgets));
- else
+ snd_soc_dapm_new_controls(dapm, wm8994_dac_revd_widgets,
+ ARRAY_SIZE(wm8994_dac_revd_widgets));
+ } else {
snd_soc_dapm_new_controls(dapm, wm8994_lateclk_widgets,
ARRAY_SIZE(wm8994_lateclk_widgets));
+ snd_soc_dapm_new_controls(dapm, wm8994_dac_widgets,
+ ARRAY_SIZE(wm8994_dac_widgets));
+ }
break;
case WM8958:
snd_soc_add_controls(codec, wm8958_snd_controls,
--
1.7.3.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases
2011-02-10 13:27 [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases Dimitris Papastamos
2011-02-10 13:27 ` [PATCH 2/2] ASoC: WM8994: Improve playback robustness Dimitris Papastamos
@ 2011-02-10 23:59 ` Liam Girdwood
2011-02-11 11:15 ` Mark Brown
2 siblings, 0 replies; 4+ messages in thread
From: Liam Girdwood @ 2011-02-10 23:59 UTC (permalink / raw)
To: Dimitris Papastamos; +Cc: alsa-devel, Mark Brown, patches
On Thu, 2011-02-10 at 13:27 +0000, Dimitris Papastamos wrote:
> Ensure that on disabling certain registers such as AIF1DAC1L,
> AIF1DAC1R etc. the AIF1CLK and AIF2CLK remain enabled. Similarly
> when enabling those registers, AIF1CLK and AIF2CLK will remain
> disabled.
>
> Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
> ---
Both
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
--
Freelance Developer, SlimLogic Ltd
ASoC and Voltage Regulator Maintainer.
http://www.slimlogic.co.uk
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases
2011-02-10 13:27 [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases Dimitris Papastamos
2011-02-10 13:27 ` [PATCH 2/2] ASoC: WM8994: Improve playback robustness Dimitris Papastamos
2011-02-10 23:59 ` [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases Liam Girdwood
@ 2011-02-11 11:15 ` Mark Brown
2 siblings, 0 replies; 4+ messages in thread
From: Mark Brown @ 2011-02-11 11:15 UTC (permalink / raw)
To: Dimitris Papastamos; +Cc: alsa-devel, patches, Liam Girdwood
On Thu, Feb 10, 2011 at 01:27:57PM +0000, Dimitris Papastamos wrote:
> Ensure that on disabling certain registers such as AIF1DAC1L,
> AIF1DAC1R etc. the AIF1CLK and AIF2CLK remain enabled. Similarly
> when enabling those registers, AIF1CLK and AIF2CLK will remain
> disabled.
These don't apply against 2.6.38 - could you please regenerate them
against that?
^ permalink raw reply [flat|nested] 4+ messages in thread
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2011-02-10 13:27 [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases Dimitris Papastamos
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2011-02-10 23:59 ` [PATCH 1/2] ASoC: WM8994: Improve robustness in some use cases Liam Girdwood
2011-02-11 11:15 ` Mark Brown
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