On i.MX95, the XCVR uses a new PLL in the PHY, which is General Purpose (GP) PLL. Add GP PLL configuration support in the driver and add the 'pll_ver' flag to distinguish different PLL on different platforms.

The XCVR also use PHY but limited for SPDIF only case Add 'use_phy' flag to distinguish these platforms.

When there are 'pll8k' and 'pll11k' clock existing, the clock source of 'phy_clk' can be changed for different sample rate requirement.

Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com Reviewed-by: Chancel Liu chancel.liu@nxp.com --- sound/soc/fsl/Kconfig | 1 + sound/soc/fsl/fsl_xcvr.c | 128 ++++++++++++++++++++++++++------------- sound/soc/fsl/fsl_xcvr.h | 91 ++++++++++++++++++++++++++++ 3 files changed, 177 insertions(+), 43 deletions(-)

diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 270726c134b3..9a371d4496c2 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -103,6 +103,7 @@ config SND_SOC_FSL_XCVR select REGMAP_MMIO select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n select SND_SOC_GENERIC_DMAENGINE_PCM + select SND_SOC_FSL_UTILS help Say Y if you want to add Audio Transceiver (XCVR) support for NXP iMX CPUs. XCVR is a digital module that supports HDMI2.1 eARC, diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c index c46f64557a7f..6b1715ac67c5 100644 --- a/sound/soc/fsl/fsl_xcvr.c +++ b/sound/soc/fsl/fsl_xcvr.c @@ -15,14 +15,22 @@ #include <sound/pcm_params.h>

#include "fsl_xcvr.h" +#include "fsl_utils.h" #include "imx-pcm.h"

#define FSL_XCVR_CAPDS_SIZE 256

+enum fsl_xcvr_pll_verison { + PLL_MX8MP, + PLL_MX95, +}; + struct fsl_xcvr_soc_data { const char *fw_name; bool spdif_only; bool use_edma; + bool use_phy; + enum fsl_xcvr_pll_verison pll_ver; };

struct fsl_xcvr { @@ -33,6 +41,8 @@ struct fsl_xcvr { struct clk *pll_ipg_clk; struct clk *phy_clk; struct clk *spba_clk; + struct clk *pll8k_clk; + struct clk *pll11k_clk; struct reset_control *reset; u8 streams; u32 mode; @@ -262,10 +272,10 @@ static int fsl_xcvr_ai_write(struct fsl_xcvr *xcvr, u8 reg, u32 data, bool phy) static int fsl_xcvr_en_phy_pll(struct fsl_xcvr *xcvr, u32 freq, bool tx) { struct device *dev = &xcvr->pdev->dev; - u32 i, div = 0, log2; + u32 i, div = 0, log2, val; int ret;

- if (xcvr->soc_data->spdif_only) + if (!xcvr->soc_data->use_phy) return 0;

for (i = 0; i < ARRAY_SIZE(fsl_xcvr_pll_cfg); i++) { @@ -288,45 +298,62 @@ static int fsl_xcvr_en_phy_pll(struct fsl_xcvr *xcvr, u32 freq, bool tx) return ret; }

- /* PLL: BANDGAP_SET: EN_VBG (enable bandgap) */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_BANDGAP_SET, - FSL_XCVR_PLL_BANDGAP_EN_VBG, 0); - - /* PLL: CTRL0: DIV_INTEGER */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0, fsl_xcvr_pll_cfg[i].mfi, 0); - /* PLL: NUMERATOR: MFN */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_NUM, fsl_xcvr_pll_cfg[i].mfn, 0); - /* PLL: DENOMINATOR: MFD */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_DEN, fsl_xcvr_pll_cfg[i].mfd, 0); - /* PLL: CTRL0_SET: HOLD_RING_OFF, POWER_UP */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET, - FSL_XCVR_PLL_CTRL0_HROFF | FSL_XCVR_PLL_CTRL0_PWP, 0); - udelay(25); - /* PLL: CTRL0: Clear Hold Ring Off */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_CLR, - FSL_XCVR_PLL_CTRL0_HROFF, 0); - udelay(100); - if (tx) { /* TX is enabled for SPDIF only */ - /* PLL: POSTDIV: PDIV0 */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV, - FSL_XCVR_PLL_PDIVx(log2, 0), 0); - /* PLL: CTRL_SET: CLKMUX0_EN */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET, - FSL_XCVR_PLL_CTRL0_CM0_EN, 0); - } else if (xcvr->mode == FSL_XCVR_MODE_EARC) { /* eARC RX */ - /* PLL: POSTDIV: PDIV1 */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV, - FSL_XCVR_PLL_PDIVx(log2, 1), 0); - /* PLL: CTRL_SET: CLKMUX1_EN */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET, - FSL_XCVR_PLL_CTRL0_CM1_EN, 0); - } else { /* SPDIF / ARC RX */ - /* PLL: POSTDIV: PDIV2 */ - fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV, - FSL_XCVR_PLL_PDIVx(log2, 2), 0); - /* PLL: CTRL_SET: CLKMUX2_EN */ + switch (xcvr->soc_data->pll_ver) { + case PLL_MX8MP: + /* PLL: BANDGAP_SET: EN_VBG (enable bandgap) */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_BANDGAP_SET, + FSL_XCVR_PLL_BANDGAP_EN_VBG, 0); + + /* PLL: CTRL0: DIV_INTEGER */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0, fsl_xcvr_pll_cfg[i].mfi, 0); + /* PLL: NUMERATOR: MFN */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_NUM, fsl_xcvr_pll_cfg[i].mfn, 0); + /* PLL: DENOMINATOR: MFD */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_DEN, fsl_xcvr_pll_cfg[i].mfd, 0); + /* PLL: CTRL0_SET: HOLD_RING_OFF, POWER_UP */ fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET, - FSL_XCVR_PLL_CTRL0_CM2_EN, 0); + FSL_XCVR_PLL_CTRL0_HROFF | FSL_XCVR_PLL_CTRL0_PWP, 0); + udelay(25); + /* PLL: CTRL0: Clear Hold Ring Off */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_CLR, + FSL_XCVR_PLL_CTRL0_HROFF, 0); + udelay(100); + if (tx) { /* TX is enabled for SPDIF only */ + /* PLL: POSTDIV: PDIV0 */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV, + FSL_XCVR_PLL_PDIVx(log2, 0), 0); + /* PLL: CTRL_SET: CLKMUX0_EN */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET, + FSL_XCVR_PLL_CTRL0_CM0_EN, 0); + } else if (xcvr->mode == FSL_XCVR_MODE_EARC) { /* eARC RX */ + /* PLL: POSTDIV: PDIV1 */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV, + FSL_XCVR_PLL_PDIVx(log2, 1), 0); + /* PLL: CTRL_SET: CLKMUX1_EN */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET, + FSL_XCVR_PLL_CTRL0_CM1_EN, 0); + } else { /* SPDIF / ARC RX */ + /* PLL: POSTDIV: PDIV2 */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV, + FSL_XCVR_PLL_PDIVx(log2, 2), 0); + /* PLL: CTRL_SET: CLKMUX2_EN */ + fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET, + FSL_XCVR_PLL_CTRL0_CM2_EN, 0); + } + break; + case PLL_MX95: + val = fsl_xcvr_pll_cfg[i].mfi << FSL_XCVR_GP_PLL_DIV_MFI_SHIFT | div; + fsl_xcvr_ai_write(xcvr, FSL_XCVR_GP_PLL_DIV, val, 0); + val = fsl_xcvr_pll_cfg[i].mfn << FSL_XCVR_GP_PLL_NUMERATOR_MFN_SHIFT; + fsl_xcvr_ai_write(xcvr, FSL_XCVR_GP_PLL_NUMERATOR, val, 0); + fsl_xcvr_ai_write(xcvr, FSL_XCVR_GP_PLL_DENOMINATOR, + fsl_xcvr_pll_cfg[i].mfd, 0); + val = FSL_XCVR_GP_PLL_CTRL_POWERUP | FSL_XCVR_GP_PLL_CTRL_CLKMUX_EN; + fsl_xcvr_ai_write(xcvr, FSL_XCVR_GP_PLL_CTRL, val, 0); + break; + default: + dev_err(dev, "Error for PLL version %d\n", xcvr->soc_data->pll_ver); + return -EINVAL; }

if (xcvr->mode == FSL_XCVR_MODE_EARC) { /* eARC mode */ @@ -362,6 +389,8 @@ static int fsl_xcvr_en_aud_pll(struct fsl_xcvr *xcvr, u32 freq)

freq = xcvr->soc_data->spdif_only ? freq / 5 : freq; clk_disable_unprepare(xcvr->phy_clk); + fsl_asoc_reparent_pll_clocks(dev, xcvr->phy_clk, + xcvr->pll8k_clk, xcvr->pll11k_clk, freq); ret = clk_set_rate(xcvr->phy_clk, freq); if (ret < 0) { dev_err(dev, "Error while setting AUD PLL rate: %d\n", ret); @@ -373,7 +402,7 @@ static int fsl_xcvr_en_aud_pll(struct fsl_xcvr *xcvr, u32 freq) return ret; }

- if (xcvr->soc_data->spdif_only) + if (!xcvr->soc_data->use_phy) return 0; /* Release AI interface from reset */ ret = regmap_write(xcvr->regmap, FSL_XCVR_PHY_AI_CTRL_SET, @@ -1017,7 +1046,7 @@ static bool fsl_xcvr_readable_reg(struct device *dev, unsigned int reg) { struct fsl_xcvr *xcvr = dev_get_drvdata(dev);

- if (xcvr->soc_data->spdif_only) + if (!xcvr->soc_data->use_phy) if ((reg >= FSL_XCVR_IER && reg <= FSL_XCVR_PHY_AI_RDATA) || reg > FSL_XCVR_TX_DPTH_BCRR) return false; @@ -1090,7 +1119,7 @@ static bool fsl_xcvr_writeable_reg(struct device *dev, unsigned int reg) { struct fsl_xcvr *xcvr = dev_get_drvdata(dev);

- if (xcvr->soc_data->spdif_only) + if (!xcvr->soc_data->use_phy) if (reg >= FSL_XCVR_IER && reg <= FSL_XCVR_PHY_AI_RDATA) return false; switch (reg) { @@ -1234,6 +1263,8 @@ static irqreturn_t irq0_isr(int irq, void *devid)

static const struct fsl_xcvr_soc_data fsl_xcvr_imx8mp_data = { .fw_name = "imx/xcvr/xcvr-imx8mp.bin", + .use_phy = true, + .pll_ver = PLL_MX8MP, };

static const struct fsl_xcvr_soc_data fsl_xcvr_imx93_data = { @@ -1241,9 +1272,17 @@ static const struct fsl_xcvr_soc_data fsl_xcvr_imx93_data = { .use_edma = true, };

+static const struct fsl_xcvr_soc_data fsl_xcvr_imx95_data = { + .spdif_only = true, + .use_phy = true, + .use_edma = true, + .pll_ver = PLL_MX95, +}; + static const struct of_device_id fsl_xcvr_dt_ids[] = { { .compatible = "fsl,imx8mp-xcvr", .data = &fsl_xcvr_imx8mp_data }, { .compatible = "fsl,imx93-xcvr", .data = &fsl_xcvr_imx93_data}, + { .compatible = "fsl,imx95-xcvr", .data = &fsl_xcvr_imx95_data}, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, fsl_xcvr_dt_ids); @@ -1287,6 +1326,9 @@ static int fsl_xcvr_probe(struct platform_device *pdev) return PTR_ERR(xcvr->pll_ipg_clk); }

+ fsl_asoc_get_pll_clocks(dev, &xcvr->pll8k_clk, + &xcvr->pll11k_clk); + xcvr->ram_addr = devm_platform_ioremap_resource_byname(pdev, "ram"); if (IS_ERR(xcvr->ram_addr)) return PTR_ERR(xcvr->ram_addr); diff --git a/sound/soc/fsl/fsl_xcvr.h b/sound/soc/fsl/fsl_xcvr.h index 044058fc6aa2..882428592e1a 100644 --- a/sound/soc/fsl/fsl_xcvr.h +++ b/sound/soc/fsl/fsl_xcvr.h @@ -291,4 +291,95 @@ #define FSL_XCVR_RX_CS_BUFF_1 0xA0 /* Second RX CS buffer */ #define FSL_XCVR_CAP_DATA_STR 0x300 /* Capabilities data structure */

+/* GP PLL Registers */ +#define FSL_XCVR_GP_PLL_CTRL 0x00 +#define FSL_XCVR_GP_PLL_CTRL_SET 0x04 +#define FSL_XCVR_GP_PLL_CTRL_CLR 0x08 +#define FSL_XCVR_GP_PLL_CTRL_TOG 0x0C +#define FSL_XCVR_GP_PLL_ANA_PRG 0x10 +#define FSL_XCVR_GP_PLL_ANA_PRG_SET 0x14 +#define FSL_XCVR_GP_PLL_ANA_PRG_CLR 0x18 +#define FSL_XCVR_GP_PLL_ANA_PRG_TOG 0x1C +#define FSL_XCVR_GP_PLL_TEST 0x20 +#define FSL_XCVR_GP_PLL_TEST_SET 0x24 +#define FSL_XCVR_GP_PLL_TEST_CLR 0x28 +#define FSL_XCVR_GP_PLL_TEST_TOG 0x2C +#define FSL_XCVR_GP_PLL_SPREAD_SPECTRUM 0x30 +#define FSL_XCVR_GP_PLL_SPREAD_SPECTRUM_SET 0x34 +#define FSL_XCVR_GP_PLL_SPREAD_SPECTRUM_CLR 0x38 +#define FSL_XCVR_GP_PLL_SPREAD_SPECTRUM_TOG 0x3C +#define FSL_XCVR_GP_PLL_NUMERATOR 0x40 +#define FSL_XCVR_GP_PLL_NUMERATOR_SET 0x44 +#define FSL_XCVR_GP_PLL_NUMERATOR_CLR 0x48 +#define FSL_XCVR_GP_PLL_NUMERATOR_TOG 0x4C +#define FSL_XCVR_GP_PLL_DENOMINATOR 0x50 +#define FSL_XCVR_GP_PLL_DENOMINATOR_SET 0x54 +#define FSL_XCVR_GP_PLL_DENOMINATOR_CLR 0x58 +#define FSL_XCVR_GP_PLL_DENOMINATOR_TOG 0x5C +#define FSL_XCVR_GP_PLL_DIV 0x60 +#define FSL_XCVR_GP_PLL_DIV_SET 0x64 +#define FSL_XCVR_GP_PLL_DIV_CLR 0x68 +#define FSL_XCVR_GP_PLL_DIV_TOG 0x6C +#define FSL_XCVR_GP_PLL_DFS_CTRL0 0x70 +#define FSL_XCVR_GP_PLL_DFS_CTRL0_SET 0x74 +#define FSL_XCVR_GP_PLL_DFS_CTRL0_CLR 0x78 +#define FSL_XCVR_GP_PLL_DFS_CTRL0_TOG 0x7C +#define FSL_XCVR_GP_PLL_DFS_DIV0 0x80 +#define FSL_XCVR_GP_PLL_DFS_DIV0_SET 0x84 +#define FSL_XCVR_GP_PLL_DFS_DIV0_CLR 0x88 +#define FSL_XCVR_GP_PLL_DFS_DIV0_TOG 0x8C +#define FSL_XCVR_GP_PLL_DFS_CTRL1 0x90 +#define FSL_XCVR_GP_PLL_DFS_CTRL1_SET 0x94 +#define FSL_XCVR_GP_PLL_DFS_CTRL1_CLR 0x98 +#define FSL_XCVR_GP_PLL_DFS_CTRL1_TOG 0x9C +#define FSL_XCVR_GP_PLL_DFS_DIV1 0xA0 +#define FSL_XCVR_GP_PLL_DFS_DIV1_SET 0xA4 +#define FSL_XCVR_GP_PLL_DFS_DIV1_CLR 0xA8 +#define FSL_XCVR_GP_PLL_DFS_DIV1_TOG 0xAC +#define FSL_XCVR_GP_PLL_DFS_CTRL2 0xB0 +#define FSL_XCVR_GP_PLL_DFS_CTRL2_SET 0xB4 +#define FSL_XCVR_GP_PLL_DFS_CTRL2_CLR 0xB8 +#define FSL_XCVR_GP_PLL_DFS_CTRL2_TOG 0xBC +#define FSL_XCVR_GP_PLL_DFS_DIV2 0xC0 +#define FSL_XCVR_GP_PLL_DFS_DIV2_SET 0xC4 +#define FSL_XCVR_GP_PLL_DFS_DIV2_CLR 0xC8 +#define FSL_XCVR_GP_PLL_DFS_DIV2_TOG 0xCC +#define FSL_XCVR_GP_PLL_DFS_CTRL3 0xD0 +#define FSL_XCVR_GP_PLL_DFS_CTRL3_SET 0xD4 +#define FSL_XCVR_GP_PLL_DFS_CTRL3_CLR 0xD8 +#define FSL_XCVR_GP_PLL_DFS_CTRL3_TOG 0xDC +#define FSL_XCVR_GP_PLL_DFS_DIV3 0xE0 +#define FSL_XCVR_GP_PLL_DFS_DIV3_SET 0xE4 +#define FSL_XCVR_GP_PLL_DFS_DIV3_CLR 0xE8 +#define FSL_XCVR_GP_PLL_DFS_DIV3_TOG 0xEC +#define FSL_XCVR_GP_PLL_STATUS 0xF0 +#define FSL_XCVR_GP_PLL_STATUS_SET 0xF4 +#define FSL_XCVR_GP_PLL_STATUS_CLR 0xF8 +#define FSL_XCVR_GP_PLL_STATUS_TOG 0xFC + +/* GP PLL Control Register */ +#define FSL_XCVR_GP_PLL_CTRL_LBYPASS BIT(31) +#define FSL_XCVR_GP_PLL_CTRL_HCS BIT(16) +#define FSL_XCVR_GP_PLL_CTRL_MSD BIT(12) +#define FSL_XCVR_GP_PLL_CTRL_DITHER_EN3 BIT(11) +#define FSL_XCVR_GP_PLL_CTRL_DITHER_EN2 BIT(10) +#define FSL_XCVR_GP_PLL_CTRL_DITHER_EN1 BIT(9) +#define FSL_XCVR_GP_PLL_CTRL_SPREADCTL BIT(8) +#define FSL_XCVR_GP_PLL_CTRL_CLKMUX_BYPASS BIT(2) +#define FSL_XCVR_GP_PLL_CTRL_CLKMUX_EN BIT(1) +#define FSL_XCVR_GP_PLL_CTRL_POWERUP BIT(0) + +/* GP PLL Numerator Register */ +#define FSL_XCVR_GP_PLL_NUMERATOR_MFN_SHIFT 2 +#define FSL_XCVR_GP_PLL_NUMERATOR_MFN GENMASK(31, 2) + +/* GP PLL Denominator Register */ +#define FSL_XCVR_GP_PLL_DENOMINATOR_MFD GENMASK(29, 0) + +/* GP PLL Dividers Register */ +#define FSL_XCVR_GP_PLL_DIV_MFI_SHIFT 16 +#define FSL_XCVR_GP_PLL_DIV_MFI GENMASK(24, 16) +#define FSL_XCVR_GP_PLL_DIV_RDIV GENMASK(15, 13) +#define FSL_XCVR_GP_PLL_DIV_ODIV GENMASK(7, 0) + #endif /* __FSL_XCVR_H */