From beb02cddd64b56081951de9048952f0fa1ff545f Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 17 Oct 2013 14:01:35 +0400 Subject: [PATCH 1/3] ALSA: pxa: slightly refactor reset handling PXA25x also shows some problems when using interrupts during reset handling. Thus do not use interrupts on all pxa kinds (to detect codec ready state). Instead use a common mdelay-loop on all platforms to detect codecs becoming ready. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Mark Brown --- sound/arm/pxa2xx-ac97-lib.c | 27 ++++++++++----------------- 1 file changed, 10 insertions(+), 17 deletions(-) diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c index e6f4633b8dd5..99a466822a7d 100644 --- a/sound/arm/pxa2xx-ac97-lib.c +++ b/sound/arm/pxa2xx-ac97-lib.c @@ -117,8 +117,7 @@ static inline void pxa_ac97_warm_pxa25x(void) { gsr_bits = 0; - GCR |= GCR_WARM_RST | GCR_PRIRDY_IEN | GCR_SECRDY_IEN; - wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1); + GCR |= GCR_WARM_RST; } static inline void pxa_ac97_cold_pxa25x(void) @@ -129,8 +128,6 @@ static inline void pxa_ac97_cold_pxa25x(void) gsr_bits = 0; GCR = GCR_COLD_RST; - GCR |= GCR_CDONE_IE|GCR_SDONE_IE; - wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1); } #endif @@ -149,8 +146,6 @@ static inline void pxa_ac97_warm_pxa27x(void) static inline void pxa_ac97_cold_pxa27x(void) { - unsigned int timeout; - GCR &= GCR_COLD_RST; /* clear everything but nCRST */ GCR &= ~GCR_COLD_RST; /* then assert nCRST */ @@ -161,29 +156,20 @@ static inline void pxa_ac97_cold_pxa27x(void) udelay(5); clk_disable(ac97conf_clk); GCR = GCR_COLD_RST | GCR_WARM_RST; - timeout = 100; /* wait for the codec-ready bit to be set */ - while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--) - mdelay(1); } #endif #ifdef CONFIG_PXA3xx static inline void pxa_ac97_warm_pxa3xx(void) { - int timeout = 100; - gsr_bits = 0; /* Can't use interrupts */ GCR |= GCR_WARM_RST; - while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--) - mdelay(1); } static inline void pxa_ac97_cold_pxa3xx(void) { - int timeout = 1000; - /* Hold CLKBPB for 100us */ GCR = 0; GCR = GCR_CLKBPB; @@ -199,14 +185,13 @@ static inline void pxa_ac97_cold_pxa3xx(void) GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN); GCR = GCR_WARM_RST | GCR_COLD_RST; - while (!(GSR & (GSR_PCR | GSR_SCR)) && timeout--) - mdelay(10); } #endif bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97) { unsigned long gsr; + unsigned int timeout = 100; #ifdef CONFIG_PXA25x if (cpu_is_pxa25x()) @@ -224,6 +209,10 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97) else #endif BUG(); + + while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--) + mdelay(1); + gsr = GSR | gsr_bits; if (!(gsr & (GSR_PCR | GSR_SCR))) { printk(KERN_INFO "%s: warm reset timeout (GSR=%#lx)\n", @@ -239,6 +228,7 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset); bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97) { unsigned long gsr; + unsigned int timeout = 1000; #ifdef CONFIG_PXA25x if (cpu_is_pxa25x()) @@ -257,6 +247,9 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97) #endif BUG(); + while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--) + mdelay(1); + gsr = GSR | gsr_bits; if (!(gsr & (GSR_PCR | GSR_SCR))) { printk(KERN_INFO "%s: cold reset timeout (GSR=%#lx)\n", From f62aa9b6c900a9aaf302c1f9ac1883c143afd832 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 17 Oct 2013 14:01:36 +0400 Subject: [PATCH 2/3] ALSA: ASoC: pxa: fix pxa2xx-ac97 DAI initialization order After recent changes to codec/DAI initialization order changes, codec driver (wm9712 in my case) tries to access codec prior to pxa2xx_ac97_hw_probe() being called (because DAIs are probed after all codecs are probed). Move hw-related probe/remove/suspend/resume functions to pxa2xx-ac97 driver level, instead of DAI level. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Mark Brown --- sound/soc/pxa/pxa2xx-ac97.c | 56 +++++++++++++++++-------------------- 1 file changed, 25 insertions(+), 31 deletions(-) diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c index f1059d999de6..ae956e3f4b9d 100644 --- a/sound/soc/pxa/pxa2xx-ac97.c +++ b/sound/soc/pxa/pxa2xx-ac97.c @@ -89,33 +89,6 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = { .filter_data = &pxa2xx_ac97_pcm_aux_mic_mono_req, }; -#ifdef CONFIG_PM -static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai) -{ - return pxa2xx_ac97_hw_suspend(); -} - -static int pxa2xx_ac97_resume(struct snd_soc_dai *dai) -{ - return pxa2xx_ac97_hw_resume(); -} - -#else -#define pxa2xx_ac97_suspend NULL -#define pxa2xx_ac97_resume NULL -#endif - -static int pxa2xx_ac97_probe(struct snd_soc_dai *dai) -{ - return pxa2xx_ac97_hw_probe(to_platform_device(dai->dev)); -} - -static int pxa2xx_ac97_remove(struct snd_soc_dai *dai) -{ - pxa2xx_ac97_hw_remove(to_platform_device(dai->dev)); - return 0; -} - static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *cpu_dai) @@ -185,10 +158,6 @@ static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = { { .name = "pxa2xx-ac97", .ac97_control = 1, - .probe = pxa2xx_ac97_probe, - .remove = pxa2xx_ac97_remove, - .suspend = pxa2xx_ac97_suspend, - .resume = pxa2xx_ac97_resume, .playback = { .stream_name = "AC97 Playback", .channels_min = 2, @@ -246,6 +215,12 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev) return -ENXIO; } + ret = pxa2xx_ac97_hw_probe(pdev); + if (ret) { + dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret); + return ret; + } + ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops); if (ret != 0) return ret; @@ -262,15 +237,34 @@ static int pxa2xx_ac97_dev_remove(struct platform_device *pdev) { snd_soc_unregister_component(&pdev->dev); snd_soc_set_ac97_ops(NULL); + pxa2xx_ac97_hw_remove(pdev); return 0; } +#ifdef CONFIG_PM_SLEEP +static int pxa2xx_ac97_dev_suspend(struct device *dev) +{ + return pxa2xx_ac97_hw_suspend(); +} + +static int pxa2xx_ac97_dev_resume(struct device *dev) +{ + return pxa2xx_ac97_hw_resume(); +} + +static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops, + pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume); +#endif + static struct platform_driver pxa2xx_ac97_driver = { .probe = pxa2xx_ac97_dev_probe, .remove = pxa2xx_ac97_dev_remove, .driver = { .name = "pxa2xx-ac97", .owner = THIS_MODULE, +#ifdef CONFIG_PM_SLEEP + .pm = &pxa2xx_ac97_pm_ops, +#endif }, }; From 7db1698f728e1176cc7869f22565e3faa8ec2b72 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 17 Oct 2013 14:01:37 +0400 Subject: [PATCH 3/3] ALSA: ASoC: pxa: add asoc pm callbacks to pxa audio drivers After convertion to snd_soc_register_card, platform driver should reference snd_soc_pm_ops callbacks to properly suspend/resume sound hardware. This was missed during conversion of PXA sound devices. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Mark Brown --- sound/soc/pxa/brownstone.c | 1 + sound/soc/pxa/corgi.c | 1 + sound/soc/pxa/e740_wm9705.c | 1 + sound/soc/pxa/e750_wm9705.c | 1 + sound/soc/pxa/e800_wm9712.c | 1 + sound/soc/pxa/imote2.c | 1 + sound/soc/pxa/mioa701_wm9713.c | 1 + sound/soc/pxa/palm27x.c | 1 + sound/soc/pxa/poodle.c | 1 + sound/soc/pxa/tosa.c | 1 + sound/soc/pxa/ttc-dkb.c | 1 + 11 files changed, 11 insertions(+) diff --git a/sound/soc/pxa/brownstone.c b/sound/soc/pxa/brownstone.c index 5b7d969f89a9..08acdc236bf8 100644 --- a/sound/soc/pxa/brownstone.c +++ b/sound/soc/pxa/brownstone.c @@ -163,6 +163,7 @@ static struct platform_driver mmp_driver = { .driver = { .name = "brownstone-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = brownstone_probe, .remove = brownstone_remove, diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c index f4cce1e80112..1853d41034bf 100644 --- a/sound/soc/pxa/corgi.c +++ b/sound/soc/pxa/corgi.c @@ -329,6 +329,7 @@ static struct platform_driver corgi_driver = { .driver = { .name = "corgi-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = corgi_probe, .remove = corgi_remove, diff --git a/sound/soc/pxa/e740_wm9705.c b/sound/soc/pxa/e740_wm9705.c index 70d799b13f0d..44b5c09d296b 100644 --- a/sound/soc/pxa/e740_wm9705.c +++ b/sound/soc/pxa/e740_wm9705.c @@ -178,6 +178,7 @@ static struct platform_driver e740_driver = { .driver = { .name = "e740-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = e740_probe, .remove = e740_remove, diff --git a/sound/soc/pxa/e750_wm9705.c b/sound/soc/pxa/e750_wm9705.c index f94d2ab51351..c34e447eb991 100644 --- a/sound/soc/pxa/e750_wm9705.c +++ b/sound/soc/pxa/e750_wm9705.c @@ -160,6 +160,7 @@ static struct platform_driver e750_driver = { .driver = { .name = "e750-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = e750_probe, .remove = e750_remove, diff --git a/sound/soc/pxa/e800_wm9712.c b/sound/soc/pxa/e800_wm9712.c index 8768a640dd71..3137f800b43f 100644 --- a/sound/soc/pxa/e800_wm9712.c +++ b/sound/soc/pxa/e800_wm9712.c @@ -150,6 +150,7 @@ static struct platform_driver e800_driver = { .driver = { .name = "e800-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = e800_probe, .remove = e800_remove, diff --git a/sound/soc/pxa/imote2.c b/sound/soc/pxa/imote2.c index eef1f7b7b38e..fd2f4eda1fd3 100644 --- a/sound/soc/pxa/imote2.c +++ b/sound/soc/pxa/imote2.c @@ -91,6 +91,7 @@ static struct platform_driver imote2_driver = { .driver = { .name = "imote2-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = imote2_probe, .remove = imote2_remove, diff --git a/sound/soc/pxa/mioa701_wm9713.c b/sound/soc/pxa/mioa701_wm9713.c index bbea7780eac6..160c5245448f 100644 --- a/sound/soc/pxa/mioa701_wm9713.c +++ b/sound/soc/pxa/mioa701_wm9713.c @@ -215,6 +215,7 @@ static struct platform_driver mioa701_wm9713_driver = { .driver = { .name = "mioa701-wm9713", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, }; diff --git a/sound/soc/pxa/palm27x.c b/sound/soc/pxa/palm27x.c index e1ffcdd9a649..3284c4b901cb 100644 --- a/sound/soc/pxa/palm27x.c +++ b/sound/soc/pxa/palm27x.c @@ -181,6 +181,7 @@ static struct platform_driver palm27x_wm9712_driver = { .driver = { .name = "palm27x-asoc", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, }; diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c index fafe46355c31..c93e138d8dc3 100644 --- a/sound/soc/pxa/poodle.c +++ b/sound/soc/pxa/poodle.c @@ -303,6 +303,7 @@ static struct platform_driver poodle_driver = { .driver = { .name = "poodle-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = poodle_probe, .remove = poodle_remove, diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c index a3fe19123f07..1d9c2ed223bc 100644 --- a/sound/soc/pxa/tosa.c +++ b/sound/soc/pxa/tosa.c @@ -275,6 +275,7 @@ static struct platform_driver tosa_driver = { .driver = { .name = "tosa-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = tosa_probe, .remove = tosa_remove, diff --git a/sound/soc/pxa/ttc-dkb.c b/sound/soc/pxa/ttc-dkb.c index 13c9ee0cb83b..0b535b570622 100644 --- a/sound/soc/pxa/ttc-dkb.c +++ b/sound/soc/pxa/ttc-dkb.c @@ -160,6 +160,7 @@ static struct platform_driver ttc_dkb_driver = { .driver = { .name = "ttc-dkb-audio", .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, }, .probe = ttc_dkb_probe, .remove = ttc_dkb_remove,