Add ACP6.3 platform specific PCI driver hw_ops for acp init/de-init sequence.
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com --- sound/soc/amd/ps/Makefile | 2 +- sound/soc/amd/ps/acp63.h | 32 ++++++++++ sound/soc/amd/ps/pci-ps.c | 118 +++++++++-------------------------- sound/soc/amd/ps/ps-common.c | 104 ++++++++++++++++++++++++++++++ 4 files changed, 167 insertions(+), 89 deletions(-) create mode 100644 sound/soc/amd/ps/ps-common.c
diff --git a/sound/soc/amd/ps/Makefile b/sound/soc/amd/ps/Makefile index b5efb1c5382c..778ee4726389 100644 --- a/sound/soc/amd/ps/Makefile +++ b/sound/soc/amd/ps/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only # Pink Sardine platform Support -snd-pci-ps-y := pci-ps.o +snd-pci-ps-y := pci-ps.o ps-common.o snd-ps-pdm-dma-y := ps-pdm-dma.o snd-soc-ps-mach-y := ps-mach.o snd-ps-sdw-dma-y := ps-sdw-dma.o diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h index 8f3a597f658b..ec22a7dad6ac 100644 --- a/sound/soc/amd/ps/acp63.h +++ b/sound/soc/amd/ps/acp63.h @@ -130,6 +130,8 @@ #define SDW_MAX_BUFFER (SDW_PLAYBACK_MAX_PERIOD_SIZE * SDW_PLAYBACK_MAX_NUM_PERIODS) #define SDW_MIN_BUFFER SDW_MAX_BUFFER
+#define ACP_HW_OPS(acp_data, cb) ((acp_data)->hw_ops->cb) + enum acp_config { ACP_CONFIG_0 = 0, ACP_CONFIG_1, @@ -213,10 +215,23 @@ struct sdw_dma_ring_buf_reg { u32 pos_high_reg; };
+struct acp63_dev_data; + +/** + * struct acp_hw_ops - ACP PCI driver platform specific ops + * @acp_init: ACP initialization + * @acp_deinit: ACP de-initialization + */ +struct acp_hw_ops { + int (*acp_init)(void __iomem *acp_base, struct device *dev); + int (*acp_deinit)(void __iomem *acp_base, struct device *dev); +}; + /** * struct acp63_dev_data - acp pci driver context * @acp63_base: acp mmio base * @res: resource + * @hw_ops: ACP pci driver platform-specific ops * @pdm_dev: ACP PDM controller platform device * @dmic_codec: platform device for DMIC Codec * sdw_dma_dev: platform device for SoundWire DMA controller @@ -242,6 +257,7 @@ struct sdw_dma_ring_buf_reg { struct acp63_dev_data { void __iomem *acp63_base; struct resource *res; + struct acp_hw_ops *hw_ops; struct platform_device *pdm_dev; struct platform_device *dmic_codec_dev; struct platform_device *sdw_dma_dev; @@ -263,4 +279,20 @@ struct acp63_dev_data { u16 acp63_sdw1_dma_intr_stat[ACP63_SDW1_DMA_MAX_STREAMS]; };
+void acp63_hw_init_ops(struct acp_hw_ops *hw_ops); + +static inline int acp_hw_init(struct acp63_dev_data *adata, struct device *dev) +{ + if (adata && adata->hw_ops && adata->hw_ops->acp_init) + return ACP_HW_OPS(adata, acp_init)(adata->acp63_base, dev); + return -EOPNOTSUPP; +} + +static inline int acp_hw_deinit(struct acp63_dev_data *adata, struct device *dev) +{ + if (adata && adata->hw_ops && adata->hw_ops->acp_deinit) + return ACP_HW_OPS(adata, acp_deinit)(adata->acp63_base, dev); + return -EOPNOTSUPP; +} + int snd_amd_acp_find_config(struct pci_dev *pci); diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c index 9cc66a807ad9..120bab1844bb 100644 --- a/sound/soc/amd/ps/pci-ps.c +++ b/sound/soc/amd/ps/pci-ps.c @@ -21,87 +21,6 @@
#include "acp63.h"
-static int acp63_power_on(void __iomem *acp_base) -{ - u32 val; - - val = readl(acp_base + ACP_PGFSM_STATUS); - - if (!val) - return val; - - if ((val & ACP63_PGFSM_STATUS_MASK) != ACP63_POWER_ON_IN_PROGRESS) - writel(ACP63_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL); - - return readl_poll_timeout(acp_base + ACP_PGFSM_STATUS, val, !val, DELAY_US, ACP63_TIMEOUT); -} - -static int acp63_reset(void __iomem *acp_base) -{ - u32 val; - int ret; - - writel(1, acp_base + ACP_SOFT_RESET); - - ret = readl_poll_timeout(acp_base + ACP_SOFT_RESET, val, - val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK, - DELAY_US, ACP63_TIMEOUT); - if (ret) - return ret; - - writel(0, acp_base + ACP_SOFT_RESET); - - return readl_poll_timeout(acp_base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP63_TIMEOUT); -} - -static void acp63_enable_interrupts(void __iomem *acp_base) -{ - writel(1, acp_base + ACP_EXTERNAL_INTR_ENB); - writel(ACP_ERROR_IRQ, acp_base + ACP_EXTERNAL_INTR_CNTL); -} - -static void acp63_disable_interrupts(void __iomem *acp_base) -{ - writel(ACP_EXT_INTR_STAT_CLEAR_MASK, acp_base + ACP_EXTERNAL_INTR_STAT); - writel(0, acp_base + ACP_EXTERNAL_INTR_CNTL); - writel(0, acp_base + ACP_EXTERNAL_INTR_ENB); -} - -static int acp63_init(void __iomem *acp_base, struct device *dev) -{ - int ret; - - ret = acp63_power_on(acp_base); - if (ret) { - dev_err(dev, "ACP power on failed\n"); - return ret; - } - writel(0x01, acp_base + ACP_CONTROL); - ret = acp63_reset(acp_base); - if (ret) { - dev_err(dev, "ACP reset failed\n"); - return ret; - } - acp63_enable_interrupts(acp_base); - writel(0, acp_base + ACP_ZSC_DSP_CTRL); - return 0; -} - -static int acp63_deinit(void __iomem *acp_base, struct device *dev) -{ - int ret; - - acp63_disable_interrupts(acp_base); - ret = acp63_reset(acp_base); - if (ret) { - dev_err(dev, "ACP reset failed\n"); - return ret; - } - writel(0, acp_base + ACP_CONTROL); - writel(1, acp_base + ACP_ZSC_DSP_CTRL); - return 0; -} - static irqreturn_t acp63_irq_thread(int irq, void *context) { struct sdw_dma_dev_data *sdw_data; @@ -540,11 +459,29 @@ static int create_acp63_platform_devs(struct pci_dev *pci, struct acp63_dev_data unregister_pdm_dev: platform_device_unregister(adata->pdm_dev); de_init: - if (acp63_deinit(adata->acp63_base, &pci->dev)) + if (acp_hw_deinit(adata, &pci->dev)) dev_err(&pci->dev, "ACP de-init failed\n"); return ret; }
+static int acp_hw_init_ops(struct acp63_dev_data *adata, struct pci_dev *pci) +{ + adata->hw_ops = devm_kzalloc(&pci->dev, sizeof(struct acp_hw_ops), + GFP_KERNEL); + if (!adata->hw_ops) + return -ENOMEM; + + switch (adata->acp_rev) { + case ACP63_PCI_REV: + acp63_hw_init_ops(adata->hw_ops); + break; + default: + dev_err(&pci->dev, "ACP device not found\n"); + return -ENODEV; + } + return 0; +} + static int snd_acp63_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { @@ -598,7 +535,12 @@ static int snd_acp63_probe(struct pci_dev *pci, pci_set_master(pci); pci_set_drvdata(pci, adata); mutex_init(&adata->acp_lock); - ret = acp63_init(adata->acp63_base, &pci->dev); + ret = acp_hw_init_ops(adata, pci); + if (ret) { + dev_err(&pci->dev, "ACP hw ops init failed\n"); + goto release_regions; + } + ret = acp_hw_init(adata, &pci->dev); if (ret) goto release_regions; ret = devm_request_threaded_irq(&pci->dev, pci->irq, acp63_irq_handler, @@ -632,7 +574,7 @@ static int snd_acp63_probe(struct pci_dev *pci, pm_runtime_allow(&pci->dev); return 0; de_init: - if (acp63_deinit(adata->acp63_base, &pci->dev)) + if (acp_hw_deinit(adata, &pci->dev)) dev_err(&pci->dev, "ACP de-init failed\n"); release_regions: pci_release_regions(pci); @@ -677,7 +619,7 @@ static int __maybe_unused snd_acp63_suspend(struct device *dev) return 0; } } - ret = acp63_deinit(adata->acp63_base, dev); + ret = acp_hw_deinit(adata, dev); if (ret) dev_err(dev, "ACP de-init failed\n");
@@ -694,7 +636,7 @@ static int __maybe_unused snd_acp63_runtime_resume(struct device *dev) writel(0, adata->acp63_base + ACP_ZSC_DSP_CTRL); return 0; } - ret = acp63_init(adata->acp63_base, dev); + ret = acp_hw_init(adata, dev); if (ret) { dev_err(dev, "ACP init failed\n"); return ret; @@ -716,7 +658,7 @@ static int __maybe_unused snd_acp63_resume(struct device *dev) return 0; }
- ret = acp63_init(adata->acp63_base, dev); + ret = acp_hw_deinit(adata, dev); if (ret) dev_err(dev, "ACP init failed\n");
@@ -744,7 +686,7 @@ static void snd_acp63_remove(struct pci_dev *pci) } if (adata->mach_dev) platform_device_unregister(adata->mach_dev); - ret = acp63_deinit(adata->acp63_base, &pci->dev); + ret = acp_hw_deinit(adata, &pci->dev); if (ret) dev_err(&pci->dev, "ACP de-init failed\n"); pm_runtime_forbid(&pci->dev); diff --git a/sound/soc/amd/ps/ps-common.c b/sound/soc/amd/ps/ps-common.c new file mode 100644 index 000000000000..771249a76537 --- /dev/null +++ b/sound/soc/amd/ps/ps-common.c @@ -0,0 +1,104 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AMD ACP PCI driver callback routines for ACP6.3, ACP7.0 & ACP7.1 + * platforms. + * + * Copyright 2025 Advanced Micro Devices, Inc. + * Authors: Vijendar Mukunda Vijendar.Mukunda@amd.com + */ + +#include <linux/bitops.h> +#include <linux/delay.h> +#include <linux/export.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/platform_device.h> + +#include "acp63.h" + +static int acp63_power_on(void __iomem *acp_base) +{ + u32 val; + + val = readl(acp_base + ACP_PGFSM_STATUS); + + if (!val) + return val; + + if ((val & ACP63_PGFSM_STATUS_MASK) != ACP63_POWER_ON_IN_PROGRESS) + writel(ACP63_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL); + + return readl_poll_timeout(acp_base + ACP_PGFSM_STATUS, val, !val, DELAY_US, ACP63_TIMEOUT); +} + +static int acp63_reset(void __iomem *acp_base) +{ + u32 val; + int ret; + + writel(1, acp_base + ACP_SOFT_RESET); + + ret = readl_poll_timeout(acp_base + ACP_SOFT_RESET, val, + val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK, + DELAY_US, ACP63_TIMEOUT); + if (ret) + return ret; + + writel(0, acp_base + ACP_SOFT_RESET); + + return readl_poll_timeout(acp_base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP63_TIMEOUT); +} + +static void acp63_enable_interrupts(void __iomem *acp_base) +{ + writel(1, acp_base + ACP_EXTERNAL_INTR_ENB); + writel(ACP_ERROR_IRQ, acp_base + ACP_EXTERNAL_INTR_CNTL); +} + +static void acp63_disable_interrupts(void __iomem *acp_base) +{ + writel(ACP_EXT_INTR_STAT_CLEAR_MASK, acp_base + ACP_EXTERNAL_INTR_STAT); + writel(0, acp_base + ACP_EXTERNAL_INTR_CNTL); + writel(0, acp_base + ACP_EXTERNAL_INTR_ENB); +} + +static int acp63_init(void __iomem *acp_base, struct device *dev) +{ + int ret; + + ret = acp63_power_on(acp_base); + if (ret) { + dev_err(dev, "ACP power on failed\n"); + return ret; + } + writel(0x01, acp_base + ACP_CONTROL); + ret = acp63_reset(acp_base); + if (ret) { + dev_err(dev, "ACP reset failed\n"); + return ret; + } + acp63_enable_interrupts(acp_base); + writel(0, acp_base + ACP_ZSC_DSP_CTRL); + return 0; +} + +static int acp63_deinit(void __iomem *acp_base, struct device *dev) +{ + int ret; + + acp63_disable_interrupts(acp_base); + ret = acp63_reset(acp_base); + if (ret) { + dev_err(dev, "ACP reset failed\n"); + return ret; + } + writel(0, acp_base + ACP_CONTROL); + writel(1, acp_base + ACP_ZSC_DSP_CTRL); + return 0; +} + +void acp63_hw_init_ops(struct acp_hw_ops *hw_ops) +{ + hw_ops->acp_init = acp63_init; + hw_ops->acp_deinit = acp63_deinit; +}