It will be reused by sun50i-codec-analog later.
Signed-off-by: Vasily Khoruzhick anarsoul@gmail.com Acked-by: Maxime Ripard maxime.ripard@bootlin.com --- sound/soc/sunxi/Kconfig | 7 +- sound/soc/sunxi/Makefile | 1 + sound/soc/sunxi/sun8i-adda-pr-regmap.c | 102 +++++++++++++++++++++++++ sound/soc/sunxi/sun8i-adda-pr-regmap.h | 7 ++ sound/soc/sunxi/sun8i-codec-analog.c | 79 +------------------ 5 files changed, 119 insertions(+), 77 deletions(-) create mode 100644 sound/soc/sunxi/sun8i-adda-pr-regmap.c create mode 100644 sound/soc/sunxi/sun8i-adda-pr-regmap.h
diff --git a/sound/soc/sunxi/Kconfig b/sound/soc/sunxi/Kconfig index 22408bc2d6ec..83b770cdfdaa 100644 --- a/sound/soc/sunxi/Kconfig +++ b/sound/soc/sunxi/Kconfig @@ -23,7 +23,7 @@ config SND_SUN8I_CODEC config SND_SUN8I_CODEC_ANALOG tristate "Allwinner sun8i Codec Analog Controls Support" depends on MACH_SUN8I || (ARM64 && ARCH_SUNXI) || COMPILE_TEST - select REGMAP + select SND_SUN8I_ADDA_PR_REGMAP help Say Y or M if you want to add support for the analog controls for the codec embedded in newer Allwinner SoCs. @@ -45,4 +45,9 @@ config SND_SUN4I_SPDIF help Say Y or M to add support for the S/PDIF audio block in the Allwinner A10 and affiliated SoCs. + +config SND_SUN8I_ADDA_PR_REGMAP + tristate + select REGMAP + endmenu diff --git a/sound/soc/sunxi/Makefile b/sound/soc/sunxi/Makefile index 4a9ef67386ca..74b99d55cfca 100644 --- a/sound/soc/sunxi/Makefile +++ b/sound/soc/sunxi/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_SND_SUN4I_I2S) += sun4i-i2s.o obj-$(CONFIG_SND_SUN4I_SPDIF) += sun4i-spdif.o obj-$(CONFIG_SND_SUN8I_CODEC_ANALOG) += sun8i-codec-analog.o obj-$(CONFIG_SND_SUN8I_CODEC) += sun8i-codec.o +obj-$(CONFIG_SND_SUN8I_ADDA_PR_REGMAP) += sun8i-adda-pr-regmap.o diff --git a/sound/soc/sunxi/sun8i-adda-pr-regmap.c b/sound/soc/sunxi/sun8i-adda-pr-regmap.c new file mode 100644 index 000000000000..e68ce9d2884d --- /dev/null +++ b/sound/soc/sunxi/sun8i-adda-pr-regmap.c @@ -0,0 +1,102 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * This driver provides regmap to access to analog part of audio codec + * found on Allwinner A23, A31s, A33, H3 and A64 Socs + * + * Copyright 2016 Chen-Yu Tsai wens@csie.org + * Copyright (C) 2018 Vasily Khoruzhick anarsoul@gmail.com + */ + +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/regmap.h> + +#include "sun8i-adda-pr-regmap.h" + +/* Analog control register access bits */ +#define ADDA_PR 0x0 /* PRCM base + 0x1c0 */ +#define ADDA_PR_RESET BIT(28) +#define ADDA_PR_WRITE BIT(24) +#define ADDA_PR_ADDR_SHIFT 16 +#define ADDA_PR_ADDR_MASK GENMASK(4, 0) +#define ADDA_PR_DATA_IN_SHIFT 8 +#define ADDA_PR_DATA_IN_MASK GENMASK(7, 0) +#define ADDA_PR_DATA_OUT_SHIFT 0 +#define ADDA_PR_DATA_OUT_MASK GENMASK(7, 0) + +/* regmap access bits */ +static int adda_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + void __iomem *base = (void __iomem *)context; + u32 tmp; + + /* De-assert reset */ + writel(readl(base) | ADDA_PR_RESET, base); + + /* Clear write bit */ + writel(readl(base) & ~ADDA_PR_WRITE, base); + + /* Set register address */ + tmp = readl(base); + tmp &= ~(ADDA_PR_ADDR_MASK << ADDA_PR_ADDR_SHIFT); + tmp |= (reg & ADDA_PR_ADDR_MASK) << ADDA_PR_ADDR_SHIFT; + writel(tmp, base); + + /* Read back value */ + *val = readl(base) & ADDA_PR_DATA_OUT_MASK; + + return 0; +} + +static int adda_reg_write(void *context, unsigned int reg, unsigned int val) +{ + void __iomem *base = (void __iomem *)context; + u32 tmp; + + /* De-assert reset */ + writel(readl(base) | ADDA_PR_RESET, base); + + /* Set register address */ + tmp = readl(base); + tmp &= ~(ADDA_PR_ADDR_MASK << ADDA_PR_ADDR_SHIFT); + tmp |= (reg & ADDA_PR_ADDR_MASK) << ADDA_PR_ADDR_SHIFT; + writel(tmp, base); + + /* Set data to write */ + tmp = readl(base); + tmp &= ~(ADDA_PR_DATA_IN_MASK << ADDA_PR_DATA_IN_SHIFT); + tmp |= (val & ADDA_PR_DATA_IN_MASK) << ADDA_PR_DATA_IN_SHIFT; + writel(tmp, base); + + /* Set write bit to signal a write */ + writel(readl(base) | ADDA_PR_WRITE, base); + + /* Clear write bit */ + writel(readl(base) & ~ADDA_PR_WRITE, base); + + return 0; +} + +static const struct regmap_config adda_pr_regmap_cfg = { + .name = "adda-pr", + .reg_bits = 5, + .reg_stride = 1, + .val_bits = 8, + .reg_read = adda_reg_read, + .reg_write = adda_reg_write, + .fast_io = true, + .max_register = 31, +}; + +struct regmap *sun8i_adda_pr_regmap_init(struct device *dev, + void __iomem *base) +{ + return devm_regmap_init(dev, NULL, base, &adda_pr_regmap_cfg); +} +EXPORT_SYMBOL_GPL(sun8i_adda_pr_regmap_init); + +MODULE_DESCRIPTION("Allwinner analog audio codec regmap driver"); +MODULE_AUTHOR("Vasily Khoruzhick anarsoul@gmail.com"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:sunxi-adda-pr"); diff --git a/sound/soc/sunxi/sun8i-adda-pr-regmap.h b/sound/soc/sunxi/sun8i-adda-pr-regmap.h new file mode 100644 index 000000000000..a5ae95dfebc1 --- /dev/null +++ b/sound/soc/sunxi/sun8i-adda-pr-regmap.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 Vasily Khoruzhick anarsoul@gmail.com + */ + +struct regmap *sun8i_adda_pr_regmap_init(struct device *dev, + void __iomem *base); diff --git a/sound/soc/sunxi/sun8i-codec-analog.c b/sound/soc/sunxi/sun8i-codec-analog.c index 485e79f292c4..916a46bbc1c8 100644 --- a/sound/soc/sunxi/sun8i-codec-analog.c +++ b/sound/soc/sunxi/sun8i-codec-analog.c @@ -27,6 +27,8 @@ #include <sound/soc-dapm.h> #include <sound/tlv.h>
+#include "sun8i-adda-pr-regmap.h" + /* Codec analog control register offsets and bit fields */ #define SUN8I_ADDA_HP_VOLC 0x00 #define SUN8I_ADDA_HP_VOLC_PA_CLK_GATE 7 @@ -120,81 +122,6 @@ #define SUN8I_ADDA_ADC_AP_EN_ADCLEN 6 #define SUN8I_ADDA_ADC_AP_EN_ADCG 0
-/* Analog control register access bits */ -#define ADDA_PR 0x0 /* PRCM base + 0x1c0 */ -#define ADDA_PR_RESET BIT(28) -#define ADDA_PR_WRITE BIT(24) -#define ADDA_PR_ADDR_SHIFT 16 -#define ADDA_PR_ADDR_MASK GENMASK(4, 0) -#define ADDA_PR_DATA_IN_SHIFT 8 -#define ADDA_PR_DATA_IN_MASK GENMASK(7, 0) -#define ADDA_PR_DATA_OUT_SHIFT 0 -#define ADDA_PR_DATA_OUT_MASK GENMASK(7, 0) - -/* regmap access bits */ -static int adda_reg_read(void *context, unsigned int reg, unsigned int *val) -{ - void __iomem *base = (void __iomem *)context; - u32 tmp; - - /* De-assert reset */ - writel(readl(base) | ADDA_PR_RESET, base); - - /* Clear write bit */ - writel(readl(base) & ~ADDA_PR_WRITE, base); - - /* Set register address */ - tmp = readl(base); - tmp &= ~(ADDA_PR_ADDR_MASK << ADDA_PR_ADDR_SHIFT); - tmp |= (reg & ADDA_PR_ADDR_MASK) << ADDA_PR_ADDR_SHIFT; - writel(tmp, base); - - /* Read back value */ - *val = readl(base) & ADDA_PR_DATA_OUT_MASK; - - return 0; -} - -static int adda_reg_write(void *context, unsigned int reg, unsigned int val) -{ - void __iomem *base = (void __iomem *)context; - u32 tmp; - - /* De-assert reset */ - writel(readl(base) | ADDA_PR_RESET, base); - - /* Set register address */ - tmp = readl(base); - tmp &= ~(ADDA_PR_ADDR_MASK << ADDA_PR_ADDR_SHIFT); - tmp |= (reg & ADDA_PR_ADDR_MASK) << ADDA_PR_ADDR_SHIFT; - writel(tmp, base); - - /* Set data to write */ - tmp = readl(base); - tmp &= ~(ADDA_PR_DATA_IN_MASK << ADDA_PR_DATA_IN_SHIFT); - tmp |= (val & ADDA_PR_DATA_IN_MASK) << ADDA_PR_DATA_IN_SHIFT; - writel(tmp, base); - - /* Set write bit to signal a write */ - writel(readl(base) | ADDA_PR_WRITE, base); - - /* Clear write bit */ - writel(readl(base) & ~ADDA_PR_WRITE, base); - - return 0; -} - -static const struct regmap_config adda_pr_regmap_cfg = { - .name = "adda-pr", - .reg_bits = 5, - .reg_stride = 1, - .val_bits = 8, - .reg_read = adda_reg_read, - .reg_write = adda_reg_write, - .fast_io = true, - .max_register = 24, -}; - /* mixer controls */ static const struct snd_kcontrol_new sun8i_codec_mixer_controls[] = { SOC_DAPM_DOUBLE_R("DAC Playback Switch", @@ -912,7 +839,7 @@ static int sun8i_codec_analog_probe(struct platform_device *pdev) return PTR_ERR(base); }
- regmap = devm_regmap_init(&pdev->dev, NULL, base, &adda_pr_regmap_cfg); + regmap = sun8i_adda_pr_regmap_init(&pdev->dev, base); if (IS_ERR(regmap)) { dev_err(&pdev->dev, "Failed to create regmap\n"); return PTR_ERR(regmap);