From: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> To: unlisted-recipients:; (no To-header on input) Cc: <Alexander.Deucher@amd.com>, <djkurtz@google.com>, <broonie@kernel.org>, Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>, "Liam Girdwood" <lgirdwood@gmail.com>, Jaroslav Kysela <perex@perex.cz>, "Takashi Iwai" <tiwai@suse.com>, Vijendar Mukunda <Vijendar.Mukunda@amd.com>, Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>, Colin Ian King <colin.king@canonical.com>, YueHaibing <yuehaibing@huawei.com>, Dan Carpenter <dan.carpenter@oracle.com>, "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." <alsa-devel@alsa-project.org>, open list <linux-kernel@vger.kernel.org> Subject: [PATCH 5/6] ASoC: amd: Added ACP3x system resume and runtime pm Date: Sat, 28 Dec 2019 19:10:59 +0530 [thread overview] Message-ID: <1577540460-21438-6-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com> (raw) In-Reply-To: <1577540460-21438-1-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com> When system wide suspend happens, ACP will be powered off and when system resumes,for audio usecase to continue,all the runtime configuration data needs to be programmed again. Added resume pm call back to ACP pm ops and also added runtime PM operations for ACP3x PCM platform device. Device will enter into D3 state when there is no activity on audio I2S lines. Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> --- sound/soc/amd/raven/acp3x-pcm-dma.c | 149 ++----------------------------- sound/soc/amd/raven/acp3x.h | 7 ++ sound/soc/amd/raven/pci-acp3x.c | 173 ++++++++++++++++++++++++++++++++++-- 3 files changed, 180 insertions(+), 149 deletions(-) diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c index c5d7f35..151daa9 100644 --- a/sound/soc/amd/raven/acp3x-pcm-dma.c +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c @@ -57,106 +57,6 @@ static const struct snd_pcm_hardware acp3x_pcm_hardware_capture = { .periods_max = CAPTURE_MAX_NUM_PERIODS, }; -static int acp3x_power_on(void __iomem *acp3x_base, bool on) -{ - u16 val, mask; - u32 timeout; - - if (on == true) { - val = 1; - mask = ACP3x_POWER_ON; - } else { - val = 0; - mask = ACP3x_POWER_OFF; - } - - rv_writel(val, acp3x_base + mmACP_PGFSM_CONTROL); - timeout = 0; - while (true) { - val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS); - if ((val & ACP3x_POWER_OFF_IN_PROGRESS) == mask) - break; - if (timeout > 100) { - pr_err("ACP3x power state change failure\n"); - return -ENODEV; - } - timeout++; - cpu_relax(); - } - return 0; -} - -static int acp3x_reset(void __iomem *acp3x_base) -{ - u32 val, timeout; - - rv_writel(1, acp3x_base + mmACP_SOFT_RESET); - timeout = 0; - while (true) { - val = rv_readl(acp3x_base + mmACP_SOFT_RESET); - if ((val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK) || - timeout > 100) { - if (val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK) - break; - return -ENODEV; - } - timeout++; - cpu_relax(); - } - - rv_writel(0, acp3x_base + mmACP_SOFT_RESET); - timeout = 0; - while (true) { - val = rv_readl(acp3x_base + mmACP_SOFT_RESET); - if (!val || timeout > 100) { - if (!val) - break; - return -ENODEV; - } - timeout++; - cpu_relax(); - } - return 0; -} - -static int acp3x_init(void __iomem *acp3x_base) -{ - int ret; - - /* power on */ - ret = acp3x_power_on(acp3x_base, true); - if (ret) { - pr_err("ACP3x power on failed\n"); - return ret; - } - /* Reset */ - ret = acp3x_reset(acp3x_base); - if (ret) { - pr_err("ACP3x reset failed\n"); - return ret; - } - return 0; -} - -static int acp3x_deinit(void __iomem *acp3x_base) -{ - int ret; - - /* Reset */ - ret = acp3x_reset(acp3x_base); - if (ret) { - pr_err("ACP3x reset failed\n"); - return ret; - } - /* power off */ - ret = acp3x_power_on(acp3x_base, false); - if (ret) { - pr_err("ACP3x power off failed\n"); - return ret; - } - return 0; -} - static irqreturn_t i2s_irq_handler(int irq, void *dev_id) { struct i2s_dev_data *rv_i2s_data; @@ -479,7 +379,7 @@ static int acp3x_audio_probe(struct platform_device *pdev) struct resource *res; struct i2s_dev_data *adata; unsigned int irqflags; - int status, ret; + int status; if (!pdev->dev.platform_data) { dev_err(&pdev->dev, "platform_data not retrieved\n"); @@ -511,53 +411,29 @@ static int acp3x_audio_probe(struct platform_device *pdev) adata->i2s_irq = res->start; dev_set_drvdata(&pdev->dev, adata); - /* Initialize ACP */ - status = acp3x_init(adata->acp3x_base); - if (status) - return -ENODEV; - status = devm_snd_soc_register_component(&pdev->dev, &acp3x_i2s_component, NULL, 0); if (status) { dev_err(&pdev->dev, "Fail to register acp i2s component\n"); - ret = -ENODEV; - goto dev_err; + return -ENODEV; } status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler, irqflags, "ACP3x_I2S_IRQ", adata); if (status) { dev_err(&pdev->dev, "ACP3x I2S IRQ request failed\n"); - ret = -ENODEV; - goto dev_err; + return -ENODEV; } - pm_runtime_set_autosuspend_delay(&pdev->dev, 5000); + pm_runtime_set_autosuspend_delay(&pdev->dev, 2000); pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_enable(&pdev->dev); + pm_runtime_allow(&pdev->dev); return 0; - -dev_err: - status = acp3x_deinit(adata->acp3x_base); - if (status) - dev_err(&pdev->dev, "ACP de-init failed\n"); - else - dev_dbg(&pdev->dev, "ACP de-initialized\n"); - return ret; } static int acp3x_audio_remove(struct platform_device *pdev) { - struct i2s_dev_data *adata; - int ret; - - adata = dev_get_drvdata(&pdev->dev); - ret = acp3x_deinit(adata->acp3x_base); - if (ret) - dev_err(&pdev->dev, "ACP de-init failed\n"); - else - dev_dbg(&pdev->dev, "ACP de-initialized\n"); - pm_runtime_disable(&pdev->dev); return 0; } @@ -565,15 +441,11 @@ static int acp3x_audio_remove(struct platform_device *pdev) static int acp3x_resume(struct device *dev) { struct i2s_dev_data *adata; - int status; u32 val, reg_val, frmt_val; reg_val = 0; frmt_val = 0; adata = dev_get_drvdata(dev); - status = acp3x_init(adata->acp3x_base); - if (status) - return -ENODEV; if (adata->play_stream && adata->play_stream->runtime) { struct i2s_stream_instance *rtd = @@ -620,14 +492,8 @@ static int acp3x_resume(struct device *dev) static int acp3x_pcm_runtime_suspend(struct device *dev) { struct i2s_dev_data *adata; - int status; adata = dev_get_drvdata(dev); - status = acp3x_deinit(adata->acp3x_base); - if (status) - dev_err(dev, "ACP de-init failed\n"); - else - dev_dbg(dev, "ACP de-initialized\n"); rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB); @@ -637,12 +503,9 @@ static int acp3x_pcm_runtime_suspend(struct device *dev) static int acp3x_pcm_runtime_resume(struct device *dev) { struct i2s_dev_data *adata; - int status; adata = dev_get_drvdata(dev); - status = acp3x_init(adata->acp3x_base); - if (status) - return -ENODEV; + rv_writel(1, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB); return 0; } diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h index 43213ae..b6a80dc 100644 --- a/sound/soc/amd/raven/acp3x.h +++ b/sound/soc/amd/raven/acp3x.h @@ -68,6 +68,13 @@ #define SLOT_WIDTH_16 0x10 #define SLOT_WIDTH_24 0x18 #define SLOT_WIDTH_32 0x20 +#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01 +#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00 +#define ACP_PGFSM_STATUS_MASK 0x03 +#define ACP_POWERED_ON 0x00 +#define ACP_POWER_ON_IN_PROGRESS 0x01 +#define ACP_POWERED_OFF 0x02 +#define ACP_POWER_OFF_IN_PROGRESS 0x03 struct acp3x_platform_info { u16 play_i2s_instance; diff --git a/sound/soc/amd/raven/pci-acp3x.c b/sound/soc/amd/raven/pci-acp3x.c index 94f5f21..2f9f5290 100644 --- a/sound/soc/amd/raven/pci-acp3x.c +++ b/sound/soc/amd/raven/pci-acp3x.c @@ -9,6 +9,8 @@ #include <linux/io.h> #include <linux/platform_device.h> #include <linux/interrupt.h> +#include <linux/pm_runtime.h> +#include <linux/delay.h> #include "acp3x.h" @@ -19,6 +21,109 @@ struct acp3x_dev_data { struct platform_device *pdev[ACP3x_DEVS]; }; +static int acp3x_power_on(void __iomem *acp3x_base) +{ + u32 val; + int timeout; + + val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS); + + if (val == 0) + return val; + + if (!((val & ACP_PGFSM_STATUS_MASK) == + ACP_POWER_ON_IN_PROGRESS)) + rv_writel(ACP_PGFSM_CNTL_POWER_ON_MASK, + acp3x_base + mmACP_PGFSM_CONTROL); + timeout = 0; + while (++timeout < 500) { + val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS); + if (!val) + return 0; + udelay(1); + } + return -ETIMEDOUT; +} + +static int acp3x_power_off(void __iomem *acp3x_base) +{ + u32 val; + int timeout; + + rv_writel(ACP_PGFSM_CNTL_POWER_OFF_MASK, + acp3x_base + mmACP_PGFSM_CONTROL); + timeout = 0; + while (++timeout < 500) { + val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS); + if ((val & ACP_PGFSM_STATUS_MASK) == ACP_POWERED_OFF) + return 0; + udelay(1); + } + return -ETIMEDOUT; +} + +static int acp3x_reset(void __iomem *acp3x_base) +{ + u32 val; + int timeout; + + rv_writel(1, acp3x_base + mmACP_SOFT_RESET); + timeout = 0; + while (++timeout < 500) { + val = rv_readl(acp3x_base + mmACP_SOFT_RESET); + if (val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK) + break; + cpu_relax(); + } + rv_writel(0, acp3x_base + mmACP_SOFT_RESET); + timeout = 0; + while (++timeout < 500) { + val = rv_readl(acp3x_base + mmACP_SOFT_RESET); + if (!val) + return 0; + cpu_relax(); + } + return -ETIMEDOUT; +} + +static int acp3x_init(void __iomem *acp3x_base) +{ + int ret; + + /* power on */ + ret = acp3x_power_on(acp3x_base); + if (ret) { + pr_err("ACP3x power on failed\n"); + return ret; + } + /* Reset */ + ret = acp3x_reset(acp3x_base); + if (ret) { + pr_err("ACP3x reset failed\n"); + return ret; + } + return 0; +} + +static int acp3x_deinit(void __iomem *acp3x_base) +{ + int ret; + + /* Reset */ + ret = acp3x_reset(acp3x_base); + if (ret) { + pr_err("ACP3x reset failed\n"); + return ret; + } + /* power off */ + ret = acp3x_power_off(acp3x_base); + if (ret) { + pr_err("ACP3x power off failed\n"); + return ret; + } + return 0; +} + static int snd_acp3x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { @@ -64,6 +169,9 @@ static int snd_acp3x_probe(struct pci_dev *pci, } pci_set_master(pci); pci_set_drvdata(pci, adata); + ret = acp3x_init(adata->acp3x_base); + if (ret) + goto disable_msi; val = rv_readl(adata->acp3x_base + mmACP_I2S_PIN_CONFIG); switch (val) { @@ -73,7 +181,7 @@ static int snd_acp3x_probe(struct pci_dev *pci, GFP_KERNEL); if (!adata->res) { ret = -ENOMEM; - goto disable_msi; + goto de_init; } adata->res[0].name = "acp3x_i2s_iomem"; @@ -118,7 +226,7 @@ static int snd_acp3x_probe(struct pci_dev *pci, pdevinfo[2].parent = &pci->dev; pdevinfo[2].num_res = 1; pdevinfo[2].res = &adata->res[2]; - for (i = 0; i < ACP3x_DEVS ; i++) { + for (i = 0; i < ACP3x_DEVS; i++) { adata->pdev[i] = platform_device_register_full(&pdevinfo[i]); if (IS_ERR(adata->pdev[i])) { @@ -134,12 +242,21 @@ static int snd_acp3x_probe(struct pci_dev *pci, ret = -ENODEV; goto disable_msi; } + pm_runtime_set_autosuspend_delay(&pci->dev, 2000); + pm_runtime_use_autosuspend(&pci->dev); + pm_runtime_set_active(&pci->dev); + pm_runtime_put_noidle(&pci->dev); + pm_runtime_enable(&pci->dev); + pm_runtime_allow(&pci->dev); return 0; unregister_devs: if (val == I2S_MODE) - for (i = 0 ; i < ACP3x_DEVS ; i++) + for (i = 0; i < ACP3x_DEVS; i++) platform_device_unregister(adata->pdev[i]); +de_init: + if (acp3x_deinit(adata->acp3x_base)) + dev_err(&pci->dev, "ACP de-init failed\n"); disable_msi: pci_disable_msi(pci); release_regions: @@ -150,15 +267,56 @@ static int snd_acp3x_probe(struct pci_dev *pci, return ret; } +static int snd_acp3x_suspend(struct device *dev) +{ + int ret; + struct acp3x_dev_data *adata; + + adata = dev_get_drvdata(dev); + ret = acp3x_deinit(adata->acp3x_base); + if (ret) + dev_err(dev, "ACP de-init failed\n"); + else + dev_dbg(dev, "ACP de-initialized\n"); + + return 0; +} + +static int snd_acp3x_resume(struct device *dev) +{ + int ret; + struct acp3x_dev_data *adata; + + adata = dev_get_drvdata(dev); + ret = acp3x_init(adata->acp3x_base); + if (ret) { + dev_err(dev, "ACP init failed\n"); + return ret; + } + return 0; +} + +static const struct dev_pm_ops acp3x_pm = { + .runtime_suspend = snd_acp3x_suspend, + .runtime_resume = snd_acp3x_resume, + .resume = snd_acp3x_resume, +}; + static void snd_acp3x_remove(struct pci_dev *pci) { - struct acp3x_dev_data *adata = pci_get_drvdata(pci); - int i; + struct acp3x_dev_data *adata; + int i, ret; + adata = pci_get_drvdata(pci); if (adata->acp3x_audio_mode == ACP3x_I2S_MODE) { - for (i = 0 ; i < ACP3x_DEVS ; i++) + for (i = 0; i < ACP3x_DEVS; i++) platform_device_unregister(adata->pdev[i]); } + ret = acp3x_deinit(adata->acp3x_base); + if (ret) + dev_err(&pci->dev, "ACP de-init failed\n"); + pm_runtime_disable(&pci->dev); + pm_runtime_get_noresume(&pci->dev); pci_disable_msi(pci); pci_release_regions(pci); pci_disable_device(pci); @@ -177,6 +335,9 @@ static struct pci_driver acp3x_driver = { .id_table = snd_acp3x_ids, .probe = snd_acp3x_probe, .remove = snd_acp3x_remove, + .driver = { + .pm = &acp3x_pm, + } }; module_pci_driver(acp3x_driver); -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> Cc: "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." <alsa-devel@alsa-project.org>, Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>, open list <linux-kernel@vger.kernel.org>, Takashi Iwai <tiwai@suse.com>, YueHaibing <yuehaibing@huawei.com>, Liam Girdwood <lgirdwood@gmail.com>, Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>, broonie@kernel.org, djkurtz@google.com, Vijendar Mukunda <Vijendar.Mukunda@amd.com>, Alexander.Deucher@amd.com, Colin Ian King <colin.king@canonical.com>, Dan Carpenter <dan.carpenter@oracle.com> Subject: [alsa-devel] [PATCH 5/6] ASoC: amd: Added ACP3x system resume and runtime pm Date: Sat, 28 Dec 2019 19:10:59 +0530 [thread overview] Message-ID: <1577540460-21438-6-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com> (raw) In-Reply-To: <1577540460-21438-1-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com> When system wide suspend happens, ACP will be powered off and when system resumes,for audio usecase to continue,all the runtime configuration data needs to be programmed again. Added resume pm call back to ACP pm ops and also added runtime PM operations for ACP3x PCM platform device. Device will enter into D3 state when there is no activity on audio I2S lines. Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> --- sound/soc/amd/raven/acp3x-pcm-dma.c | 149 ++----------------------------- sound/soc/amd/raven/acp3x.h | 7 ++ sound/soc/amd/raven/pci-acp3x.c | 173 ++++++++++++++++++++++++++++++++++-- 3 files changed, 180 insertions(+), 149 deletions(-) diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c index c5d7f35..151daa9 100644 --- a/sound/soc/amd/raven/acp3x-pcm-dma.c +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c @@ -57,106 +57,6 @@ static const struct snd_pcm_hardware acp3x_pcm_hardware_capture = { .periods_max = CAPTURE_MAX_NUM_PERIODS, }; -static int acp3x_power_on(void __iomem *acp3x_base, bool on) -{ - u16 val, mask; - u32 timeout; - - if (on == true) { - val = 1; - mask = ACP3x_POWER_ON; - } else { - val = 0; - mask = ACP3x_POWER_OFF; - } - - rv_writel(val, acp3x_base + mmACP_PGFSM_CONTROL); - timeout = 0; - while (true) { - val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS); - if ((val & ACP3x_POWER_OFF_IN_PROGRESS) == mask) - break; - if (timeout > 100) { - pr_err("ACP3x power state change failure\n"); - return -ENODEV; - } - timeout++; - cpu_relax(); - } - return 0; -} - -static int acp3x_reset(void __iomem *acp3x_base) -{ - u32 val, timeout; - - rv_writel(1, acp3x_base + mmACP_SOFT_RESET); - timeout = 0; - while (true) { - val = rv_readl(acp3x_base + mmACP_SOFT_RESET); - if ((val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK) || - timeout > 100) { - if (val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK) - break; - return -ENODEV; - } - timeout++; - cpu_relax(); - } - - rv_writel(0, acp3x_base + mmACP_SOFT_RESET); - timeout = 0; - while (true) { - val = rv_readl(acp3x_base + mmACP_SOFT_RESET); - if (!val || timeout > 100) { - if (!val) - break; - return -ENODEV; - } - timeout++; - cpu_relax(); - } - return 0; -} - -static int acp3x_init(void __iomem *acp3x_base) -{ - int ret; - - /* power on */ - ret = acp3x_power_on(acp3x_base, true); - if (ret) { - pr_err("ACP3x power on failed\n"); - return ret; - } - /* Reset */ - ret = acp3x_reset(acp3x_base); - if (ret) { - pr_err("ACP3x reset failed\n"); - return ret; - } - return 0; -} - -static int acp3x_deinit(void __iomem *acp3x_base) -{ - int ret; - - /* Reset */ - ret = acp3x_reset(acp3x_base); - if (ret) { - pr_err("ACP3x reset failed\n"); - return ret; - } - /* power off */ - ret = acp3x_power_on(acp3x_base, false); - if (ret) { - pr_err("ACP3x power off failed\n"); - return ret; - } - return 0; -} - static irqreturn_t i2s_irq_handler(int irq, void *dev_id) { struct i2s_dev_data *rv_i2s_data; @@ -479,7 +379,7 @@ static int acp3x_audio_probe(struct platform_device *pdev) struct resource *res; struct i2s_dev_data *adata; unsigned int irqflags; - int status, ret; + int status; if (!pdev->dev.platform_data) { dev_err(&pdev->dev, "platform_data not retrieved\n"); @@ -511,53 +411,29 @@ static int acp3x_audio_probe(struct platform_device *pdev) adata->i2s_irq = res->start; dev_set_drvdata(&pdev->dev, adata); - /* Initialize ACP */ - status = acp3x_init(adata->acp3x_base); - if (status) - return -ENODEV; - status = devm_snd_soc_register_component(&pdev->dev, &acp3x_i2s_component, NULL, 0); if (status) { dev_err(&pdev->dev, "Fail to register acp i2s component\n"); - ret = -ENODEV; - goto dev_err; + return -ENODEV; } status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler, irqflags, "ACP3x_I2S_IRQ", adata); if (status) { dev_err(&pdev->dev, "ACP3x I2S IRQ request failed\n"); - ret = -ENODEV; - goto dev_err; + return -ENODEV; } - pm_runtime_set_autosuspend_delay(&pdev->dev, 5000); + pm_runtime_set_autosuspend_delay(&pdev->dev, 2000); pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_enable(&pdev->dev); + pm_runtime_allow(&pdev->dev); return 0; - -dev_err: - status = acp3x_deinit(adata->acp3x_base); - if (status) - dev_err(&pdev->dev, "ACP de-init failed\n"); - else - dev_dbg(&pdev->dev, "ACP de-initialized\n"); - return ret; } static int acp3x_audio_remove(struct platform_device *pdev) { - struct i2s_dev_data *adata; - int ret; - - adata = dev_get_drvdata(&pdev->dev); - ret = acp3x_deinit(adata->acp3x_base); - if (ret) - dev_err(&pdev->dev, "ACP de-init failed\n"); - else - dev_dbg(&pdev->dev, "ACP de-initialized\n"); - pm_runtime_disable(&pdev->dev); return 0; } @@ -565,15 +441,11 @@ static int acp3x_audio_remove(struct platform_device *pdev) static int acp3x_resume(struct device *dev) { struct i2s_dev_data *adata; - int status; u32 val, reg_val, frmt_val; reg_val = 0; frmt_val = 0; adata = dev_get_drvdata(dev); - status = acp3x_init(adata->acp3x_base); - if (status) - return -ENODEV; if (adata->play_stream && adata->play_stream->runtime) { struct i2s_stream_instance *rtd = @@ -620,14 +492,8 @@ static int acp3x_resume(struct device *dev) static int acp3x_pcm_runtime_suspend(struct device *dev) { struct i2s_dev_data *adata; - int status; adata = dev_get_drvdata(dev); - status = acp3x_deinit(adata->acp3x_base); - if (status) - dev_err(dev, "ACP de-init failed\n"); - else - dev_dbg(dev, "ACP de-initialized\n"); rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB); @@ -637,12 +503,9 @@ static int acp3x_pcm_runtime_suspend(struct device *dev) static int acp3x_pcm_runtime_resume(struct device *dev) { struct i2s_dev_data *adata; - int status; adata = dev_get_drvdata(dev); - status = acp3x_init(adata->acp3x_base); - if (status) - return -ENODEV; + rv_writel(1, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB); return 0; } diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h index 43213ae..b6a80dc 100644 --- a/sound/soc/amd/raven/acp3x.h +++ b/sound/soc/amd/raven/acp3x.h @@ -68,6 +68,13 @@ #define SLOT_WIDTH_16 0x10 #define SLOT_WIDTH_24 0x18 #define SLOT_WIDTH_32 0x20 +#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01 +#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00 +#define ACP_PGFSM_STATUS_MASK 0x03 +#define ACP_POWERED_ON 0x00 +#define ACP_POWER_ON_IN_PROGRESS 0x01 +#define ACP_POWERED_OFF 0x02 +#define ACP_POWER_OFF_IN_PROGRESS 0x03 struct acp3x_platform_info { u16 play_i2s_instance; diff --git a/sound/soc/amd/raven/pci-acp3x.c b/sound/soc/amd/raven/pci-acp3x.c index 94f5f21..2f9f5290 100644 --- a/sound/soc/amd/raven/pci-acp3x.c +++ b/sound/soc/amd/raven/pci-acp3x.c @@ -9,6 +9,8 @@ #include <linux/io.h> #include <linux/platform_device.h> #include <linux/interrupt.h> +#include <linux/pm_runtime.h> +#include <linux/delay.h> #include "acp3x.h" @@ -19,6 +21,109 @@ struct acp3x_dev_data { struct platform_device *pdev[ACP3x_DEVS]; }; +static int acp3x_power_on(void __iomem *acp3x_base) +{ + u32 val; + int timeout; + + val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS); + + if (val == 0) + return val; + + if (!((val & ACP_PGFSM_STATUS_MASK) == + ACP_POWER_ON_IN_PROGRESS)) + rv_writel(ACP_PGFSM_CNTL_POWER_ON_MASK, + acp3x_base + mmACP_PGFSM_CONTROL); + timeout = 0; + while (++timeout < 500) { + val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS); + if (!val) + return 0; + udelay(1); + } + return -ETIMEDOUT; +} + +static int acp3x_power_off(void __iomem *acp3x_base) +{ + u32 val; + int timeout; + + rv_writel(ACP_PGFSM_CNTL_POWER_OFF_MASK, + acp3x_base + mmACP_PGFSM_CONTROL); + timeout = 0; + while (++timeout < 500) { + val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS); + if ((val & ACP_PGFSM_STATUS_MASK) == ACP_POWERED_OFF) + return 0; + udelay(1); + } + return -ETIMEDOUT; +} + +static int acp3x_reset(void __iomem *acp3x_base) +{ + u32 val; + int timeout; + + rv_writel(1, acp3x_base + mmACP_SOFT_RESET); + timeout = 0; + while (++timeout < 500) { + val = rv_readl(acp3x_base + mmACP_SOFT_RESET); + if (val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK) + break; + cpu_relax(); + } + rv_writel(0, acp3x_base + mmACP_SOFT_RESET); + timeout = 0; + while (++timeout < 500) { + val = rv_readl(acp3x_base + mmACP_SOFT_RESET); + if (!val) + return 0; + cpu_relax(); + } + return -ETIMEDOUT; +} + +static int acp3x_init(void __iomem *acp3x_base) +{ + int ret; + + /* power on */ + ret = acp3x_power_on(acp3x_base); + if (ret) { + pr_err("ACP3x power on failed\n"); + return ret; + } + /* Reset */ + ret = acp3x_reset(acp3x_base); + if (ret) { + pr_err("ACP3x reset failed\n"); + return ret; + } + return 0; +} + +static int acp3x_deinit(void __iomem *acp3x_base) +{ + int ret; + + /* Reset */ + ret = acp3x_reset(acp3x_base); + if (ret) { + pr_err("ACP3x reset failed\n"); + return ret; + } + /* power off */ + ret = acp3x_power_off(acp3x_base); + if (ret) { + pr_err("ACP3x power off failed\n"); + return ret; + } + return 0; +} + static int snd_acp3x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { @@ -64,6 +169,9 @@ static int snd_acp3x_probe(struct pci_dev *pci, } pci_set_master(pci); pci_set_drvdata(pci, adata); + ret = acp3x_init(adata->acp3x_base); + if (ret) + goto disable_msi; val = rv_readl(adata->acp3x_base + mmACP_I2S_PIN_CONFIG); switch (val) { @@ -73,7 +181,7 @@ static int snd_acp3x_probe(struct pci_dev *pci, GFP_KERNEL); if (!adata->res) { ret = -ENOMEM; - goto disable_msi; + goto de_init; } adata->res[0].name = "acp3x_i2s_iomem"; @@ -118,7 +226,7 @@ static int snd_acp3x_probe(struct pci_dev *pci, pdevinfo[2].parent = &pci->dev; pdevinfo[2].num_res = 1; pdevinfo[2].res = &adata->res[2]; - for (i = 0; i < ACP3x_DEVS ; i++) { + for (i = 0; i < ACP3x_DEVS; i++) { adata->pdev[i] = platform_device_register_full(&pdevinfo[i]); if (IS_ERR(adata->pdev[i])) { @@ -134,12 +242,21 @@ static int snd_acp3x_probe(struct pci_dev *pci, ret = -ENODEV; goto disable_msi; } + pm_runtime_set_autosuspend_delay(&pci->dev, 2000); + pm_runtime_use_autosuspend(&pci->dev); + pm_runtime_set_active(&pci->dev); + pm_runtime_put_noidle(&pci->dev); + pm_runtime_enable(&pci->dev); + pm_runtime_allow(&pci->dev); return 0; unregister_devs: if (val == I2S_MODE) - for (i = 0 ; i < ACP3x_DEVS ; i++) + for (i = 0; i < ACP3x_DEVS; i++) platform_device_unregister(adata->pdev[i]); +de_init: + if (acp3x_deinit(adata->acp3x_base)) + dev_err(&pci->dev, "ACP de-init failed\n"); disable_msi: pci_disable_msi(pci); release_regions: @@ -150,15 +267,56 @@ static int snd_acp3x_probe(struct pci_dev *pci, return ret; } +static int snd_acp3x_suspend(struct device *dev) +{ + int ret; + struct acp3x_dev_data *adata; + + adata = dev_get_drvdata(dev); + ret = acp3x_deinit(adata->acp3x_base); + if (ret) + dev_err(dev, "ACP de-init failed\n"); + else + dev_dbg(dev, "ACP de-initialized\n"); + + return 0; +} + +static int snd_acp3x_resume(struct device *dev) +{ + int ret; + struct acp3x_dev_data *adata; + + adata = dev_get_drvdata(dev); + ret = acp3x_init(adata->acp3x_base); + if (ret) { + dev_err(dev, "ACP init failed\n"); + return ret; + } + return 0; +} + +static const struct dev_pm_ops acp3x_pm = { + .runtime_suspend = snd_acp3x_suspend, + .runtime_resume = snd_acp3x_resume, + .resume = snd_acp3x_resume, +}; + static void snd_acp3x_remove(struct pci_dev *pci) { - struct acp3x_dev_data *adata = pci_get_drvdata(pci); - int i; + struct acp3x_dev_data *adata; + int i, ret; + adata = pci_get_drvdata(pci); if (adata->acp3x_audio_mode == ACP3x_I2S_MODE) { - for (i = 0 ; i < ACP3x_DEVS ; i++) + for (i = 0; i < ACP3x_DEVS; i++) platform_device_unregister(adata->pdev[i]); } + ret = acp3x_deinit(adata->acp3x_base); + if (ret) + dev_err(&pci->dev, "ACP de-init failed\n"); + pm_runtime_disable(&pci->dev); + pm_runtime_get_noresume(&pci->dev); pci_disable_msi(pci); pci_release_regions(pci); pci_disable_device(pci); @@ -177,6 +335,9 @@ static struct pci_driver acp3x_driver = { .id_table = snd_acp3x_ids, .probe = snd_acp3x_probe, .remove = snd_acp3x_remove, + .driver = { + .pm = &acp3x_pm, + } }; module_pci_driver(acp3x_driver); -- 2.7.4 _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
next prev parent reply other threads:[~2019-12-28 13:43 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <1577540460-21438-1-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com> 2019-12-28 13:40 ` [PATCH 1/6] ASoC: amd: Refactoring of DAI from DMA driver Ravulapati Vishnu vardhan rao 2019-12-28 13:40 ` [alsa-devel] " Ravulapati Vishnu vardhan rao 2019-12-31 0:30 ` [alsa-devel] Applied "ASoC: amd: Refactoring of DAI from DMA driver" to the asoc tree Mark Brown 2019-12-28 13:40 ` [PATCH 2/6] ASoC: amd: Enabling I2S instance in DMA and DAI Ravulapati Vishnu vardhan rao 2019-12-28 13:40 ` [alsa-devel] " Ravulapati Vishnu vardhan rao 2019-12-31 0:30 ` Applied "ASoC: amd: Enabling I2S instance in DMA and DAI" to the asoc tree Mark Brown 2019-12-31 0:30 ` [alsa-devel] " Mark Brown 2019-12-28 13:40 ` [PATCH 3/6] ASoC: amd: add ACP3x TDM mode support Ravulapati Vishnu vardhan rao 2019-12-28 13:40 ` [alsa-devel] " Ravulapati Vishnu vardhan rao 2019-12-31 0:30 ` Applied "ASoC: amd: add ACP3x TDM mode support" to the asoc tree Mark Brown 2019-12-31 0:30 ` [alsa-devel] " Mark Brown 2019-12-28 13:40 ` [PATCH 4/6] ASoC: amd: Handle ACP3x I2S-SP Interrupts Ravulapati Vishnu vardhan rao 2019-12-28 13:40 ` [alsa-devel] " Ravulapati Vishnu vardhan rao 2019-12-31 0:30 ` Applied "ASoC: amd: Handle ACP3x I2S-SP Interrupts." to the asoc tree Mark Brown 2019-12-31 0:30 ` [alsa-devel] " Mark Brown 2019-12-28 13:40 ` Ravulapati Vishnu vardhan rao [this message] 2019-12-28 13:40 ` [alsa-devel] [PATCH 5/6] ASoC: amd: Added ACP3x system resume and runtime pm Ravulapati Vishnu vardhan rao 2019-12-31 0:30 ` Applied "ASoC: amd: Added ACP3x system resume and runtime pm" to the asoc tree Mark Brown 2019-12-31 0:30 ` [alsa-devel] " Mark Brown 2019-12-28 13:41 ` [PATCH 6/6] ASoC: amd MMAP_INTERLEAVED Support Ravulapati Vishnu vardhan rao 2019-12-28 13:41 ` [alsa-devel] " Ravulapati Vishnu vardhan rao 2019-12-31 0:30 ` Applied "ASoC: amd MMAP_INTERLEAVED Support" to the asoc tree Mark Brown 2019-12-31 0:30 ` [alsa-devel] " Mark Brown [not found] <1577451055-9182-1-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com> 2019-12-27 12:50 ` [PATCH 5/6] ASoC: amd: Added ACP3x system resume and runtime pm Ravulapati Vishnu vardhan rao
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