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ASoC: sun8i-codec-analog: split regmap code into separate driver

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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>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vasily Khoruzhick
2018-10-17 00:38:07 -07:00
committed by Mark Brown
parent 13c3bf174b
commit 55b407f646
5 changed files with 119 additions and 77 deletions
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79
sound/soc/sunxi/sun8i-codec-analog.c
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@@ -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);