| Message ID | 20220812120731.788052-4-Syed.SabaKareem@amd.com |
|---|---|
| State | Accepted |
| Commit | 9766bb62cf315ccbfc6203372074dffe69389356 |
| Headers | show |
| Series | Add Pink Sardine platform ASoC driver | expand |
On 8/12/2022 2:07 PM, Syed Saba kareem wrote: > Add Pink Sardine platform ACP6.2 PCI driver init/deinit functions. > > Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com> > Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> > --- > sound/soc/amd/ps/acp62.h | 12 +++++ > sound/soc/amd/ps/pci-ps.c | 109 ++++++++++++++++++++++++++++++++++++++ > 2 files changed, 121 insertions(+) > > diff --git a/sound/soc/amd/ps/acp62.h b/sound/soc/amd/ps/acp62.h > index e91762240c93..8e734f190b11 100644 > --- a/sound/soc/amd/ps/acp62.h > +++ b/sound/soc/amd/ps/acp62.h > @@ -10,6 +10,18 @@ > #define ACP_DEVICE_ID 0x15E2 > #define ACP62_PHY_BASE_ADDRESS 0x1240000 > > +#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001 > +#define ACP_PGFSM_CNTL_POWER_ON_MASK 1 > +#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0 > +#define ACP_PGFSM_STATUS_MASK 3 > +#define ACP_POWERED_ON 0 > +#define ACP_POWER_ON_IN_PROGRESS 1 > +#define ACP_POWERED_OFF 2 > +#define ACP_POWER_OFF_IN_PROGRESS 3 > + > +#define ACP_ERROR_MASK 0x20000000 > +#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF > + > static inline u32 acp62_readl(void __iomem *base_addr) > { > return readl(base_addr - ACP62_PHY_BASE_ADDRESS); > diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c > index 25169797275c..2014f415af15 100644 > --- a/sound/soc/amd/ps/pci-ps.c > +++ b/sound/soc/amd/ps/pci-ps.c > @@ -8,6 +8,7 @@ > #include <linux/pci.h> > #include <linux/module.h> > #include <linux/io.h> > +#include <linux/delay.h> > > #include "acp62.h" > > @@ -15,6 +16,103 @@ struct acp62_dev_data { > void __iomem *acp62_base; > }; > > +static int acp62_power_on(void __iomem *acp_base) > +{ > + u32 val; > + int timeout; > + > + val = acp62_readl(acp_base + ACP_PGFSM_STATUS); > + > + if (!val) > + return val; > + > + if ((val & ACP_PGFSM_STATUS_MASK) != ACP_POWER_ON_IN_PROGRESS) > + acp62_writel(ACP_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL); > + timeout = 0; > + while (++timeout < 500) { > + val = acp62_readl(acp_base + ACP_PGFSM_STATUS); > + if (!val) > + return 0; > + udelay(1); > + } > + return -ETIMEDOUT; > +} > + > +static int acp62_reset(void __iomem *acp_base) > +{ > + u32 val; > + int timeout; > + > + acp62_writel(1, acp_base + ACP_SOFT_RESET); > + timeout = 0; > + while (++timeout < 500) { > + val = acp62_readl(acp_base + ACP_SOFT_RESET); > + if (val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK) > + break; > + cpu_relax(); > + } > + acp62_writel(0, acp_base + ACP_SOFT_RESET); > + timeout = 0; > + while (++timeout < 500) { > + val = acp62_readl(acp_base + ACP_SOFT_RESET); > + if (!val) > + return 0; > + cpu_relax(); > + } > + return -ETIMEDOUT; > +} > + > +static void acp62_enable_interrupts(void __iomem *acp_base) > +{ > + acp62_writel(0x01, acp_base + ACP_EXTERNAL_INTR_ENB); In function before you just write decimal 1 and 0, and here and later in patch you use hex values? Should probably be consistent. > +} > + > +static void acp62_disable_interrupts(void __iomem *acp_base) > +{ > + acp62_writel(ACP_EXT_INTR_STAT_CLEAR_MASK, acp_base + > + ACP_EXTERNAL_INTR_STAT); > + acp62_writel(0x00, acp_base + ACP_EXTERNAL_INTR_CNTL); > + acp62_writel(0x00, acp_base + ACP_EXTERNAL_INTR_ENB); > +} > + > +static int acp62_init(void __iomem *acp_base) > +{ > + int ret; > + > + /* power on */ Unnecessary comment? Called function name is already self explanatory, no need to repeat it. > + ret = acp62_power_on(acp_base); > + if (ret) { > + pr_err("ACP power on failed\n"); > + return ret; > + } > + acp62_writel(0x01, acp_base + ACP_CONTROL); > + /* Reset */ Same here? > + ret = acp62_reset(acp_base); > + if (ret) { > + pr_err("ACP reset failed\n"); > + return ret; > + } > + acp62_writel(0x03, acp_base + ACP_CLKMUX_SEL); > + acp62_enable_interrupts(acp_base); > + return 0; > +} > + > +static int acp62_deinit(void __iomem *acp_base) > +{ > + int ret; > + > + acp62_disable_interrupts(acp_base); > + /* Reset */ Again > + ret = acp62_reset(acp_base); > + if (ret) { > + pr_err("ACP reset failed\n"); > + return ret; > + } > + acp62_writel(0x00, acp_base + ACP_CLKMUX_SEL); > + acp62_writel(0x00, acp_base + ACP_CONTROL); > + return 0; > +} > + > static int snd_acp62_probe(struct pci_dev *pci, > const struct pci_device_id *pci_id) > { > @@ -56,6 +154,10 @@ static int snd_acp62_probe(struct pci_dev *pci, > } > pci_set_master(pci); > pci_set_drvdata(pci, adata); > + ret = acp62_init(adata->acp62_base); > + if (ret) > + goto release_regions; > + > return 0; > release_regions: > pci_release_regions(pci); > @@ -67,6 +169,13 @@ static int snd_acp62_probe(struct pci_dev *pci, > > static void snd_acp62_remove(struct pci_dev *pci) > { > + struct acp62_dev_data *adata; > + int ret; > + > + adata = pci_get_drvdata(pci); > + ret = acp62_deinit(adata->acp62_base); > + if (ret) > + dev_err(&pci->dev, "ACP de-init failed\n"); > pci_release_regions(pci); > pci_disable_device(pci); > }
Will fix it and Will resend the patch series.
On 8/12/22 18:03, Mark Brown wrote:
> [CAUTION: External Email]
diff --git a/sound/soc/amd/ps/acp62.h b/sound/soc/amd/ps/acp62.h index e91762240c93..8e734f190b11 100644 --- a/sound/soc/amd/ps/acp62.h +++ b/sound/soc/amd/ps/acp62.h @@ -10,6 +10,18 @@ #define ACP_DEVICE_ID 0x15E2 #define ACP62_PHY_BASE_ADDRESS 0x1240000 +#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001 +#define ACP_PGFSM_CNTL_POWER_ON_MASK 1 +#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0 +#define ACP_PGFSM_STATUS_MASK 3 +#define ACP_POWERED_ON 0 +#define ACP_POWER_ON_IN_PROGRESS 1 +#define ACP_POWERED_OFF 2 +#define ACP_POWER_OFF_IN_PROGRESS 3 + +#define ACP_ERROR_MASK 0x20000000 +#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF + static inline u32 acp62_readl(void __iomem *base_addr) { return readl(base_addr - ACP62_PHY_BASE_ADDRESS); diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c index 25169797275c..2014f415af15 100644 --- a/sound/soc/amd/ps/pci-ps.c +++ b/sound/soc/amd/ps/pci-ps.c @@ -8,6 +8,7 @@ #include <linux/pci.h> #include <linux/module.h> #include <linux/io.h> +#include <linux/delay.h> #include "acp62.h" @@ -15,6 +16,103 @@ struct acp62_dev_data { void __iomem *acp62_base; }; +static int acp62_power_on(void __iomem *acp_base) +{ + u32 val; + int timeout; + + val = acp62_readl(acp_base + ACP_PGFSM_STATUS); + + if (!val) + return val; + + if ((val & ACP_PGFSM_STATUS_MASK) != ACP_POWER_ON_IN_PROGRESS) + acp62_writel(ACP_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL); + timeout = 0; + while (++timeout < 500) { + val = acp62_readl(acp_base + ACP_PGFSM_STATUS); + if (!val) + return 0; + udelay(1); + } + return -ETIMEDOUT; +} + +static int acp62_reset(void __iomem *acp_base) +{ + u32 val; + int timeout; + + acp62_writel(1, acp_base + ACP_SOFT_RESET); + timeout = 0; + while (++timeout < 500) { + val = acp62_readl(acp_base + ACP_SOFT_RESET); + if (val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK) + break; + cpu_relax(); + } + acp62_writel(0, acp_base + ACP_SOFT_RESET); + timeout = 0; + while (++timeout < 500) { + val = acp62_readl(acp_base + ACP_SOFT_RESET); + if (!val) + return 0; + cpu_relax(); + } + return -ETIMEDOUT; +} + +static void acp62_enable_interrupts(void __iomem *acp_base) +{ + acp62_writel(0x01, acp_base + ACP_EXTERNAL_INTR_ENB); +} + +static void acp62_disable_interrupts(void __iomem *acp_base) +{ + acp62_writel(ACP_EXT_INTR_STAT_CLEAR_MASK, acp_base + + ACP_EXTERNAL_INTR_STAT); + acp62_writel(0x00, acp_base + ACP_EXTERNAL_INTR_CNTL); + acp62_writel(0x00, acp_base + ACP_EXTERNAL_INTR_ENB); +} + +static int acp62_init(void __iomem *acp_base) +{ + int ret; + + /* power on */ + ret = acp62_power_on(acp_base); + if (ret) { + pr_err("ACP power on failed\n"); + return ret; + } + acp62_writel(0x01, acp_base + ACP_CONTROL); + /* Reset */ + ret = acp62_reset(acp_base); + if (ret) { + pr_err("ACP reset failed\n"); + return ret; + } + acp62_writel(0x03, acp_base + ACP_CLKMUX_SEL); + acp62_enable_interrupts(acp_base); + return 0; +} + +static int acp62_deinit(void __iomem *acp_base) +{ + int ret; + + acp62_disable_interrupts(acp_base); + /* Reset */ + ret = acp62_reset(acp_base); + if (ret) { + pr_err("ACP reset failed\n"); + return ret; + } + acp62_writel(0x00, acp_base + ACP_CLKMUX_SEL); + acp62_writel(0x00, acp_base + ACP_CONTROL); + return 0; +} + static int snd_acp62_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { @@ -56,6 +154,10 @@ static int snd_acp62_probe(struct pci_dev *pci, } pci_set_master(pci); pci_set_drvdata(pci, adata); + ret = acp62_init(adata->acp62_base); + if (ret) + goto release_regions; + return 0; release_regions: pci_release_regions(pci); @@ -67,6 +169,13 @@ static int snd_acp62_probe(struct pci_dev *pci, static void snd_acp62_remove(struct pci_dev *pci) { + struct acp62_dev_data *adata; + int ret; + + adata = pci_get_drvdata(pci); + ret = acp62_deinit(adata->acp62_base); + if (ret) + dev_err(&pci->dev, "ACP de-init failed\n"); pci_release_regions(pci); pci_disable_device(pci); }