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ASoC: da7210: Add support for spi regmap
This patch adds support for spi regmap feature to existing da7210 driver. Signed-off-by: Ashish Chavan <ashish.chavan@kpitcummins.com> Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Ashish Chavan
Mark Brown
parent
eb794077b8
commit
aa0e25caaf
@ -17,6 +17,7 @@
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/spi/spi.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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@ -27,6 +28,7 @@
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#include <sound/tlv.h>
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/* DA7210 register space */
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#define DA7210_PAGE_CONTROL 0x00
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#define DA7210_CONTROL 0x01
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#define DA7210_STATUS 0x02
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#define DA7210_STARTUP1 0x03
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@ -631,6 +633,7 @@ struct da7210_priv {
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};
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static struct reg_default da7210_reg_defaults[] = {
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{ 0x00, 0x00 },
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{ 0x01, 0x11 },
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{ 0x03, 0x00 },
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{ 0x04, 0x00 },
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@ -927,13 +930,6 @@ static int da7210_probe(struct snd_soc_codec *codec)
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* DA7210_PLL_DIV3 :: DA7210_MCLK_RANGExxx
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*/
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/*
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* make sure that DA7210 use bypass mode before start up
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*/
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snd_soc_write(codec, DA7210_STARTUP1, 0);
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snd_soc_write(codec, DA7210_PLL_DIV3,
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DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
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/*
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* ADC settings
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*/
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@ -1025,16 +1021,6 @@ static int da7210_probe(struct snd_soc_codec *codec)
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DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
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snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);
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/* As suggested by Dialog */
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/* unlock */
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regmap_write(da7210->regmap, DA7210_A_HID_UNLOCK, 0x8B);
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regmap_write(da7210->regmap, DA7210_A_TEST_UNLOCK, 0xB4);
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regmap_write(da7210->regmap, DA7210_A_PLL1, 0x01);
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regmap_write(da7210->regmap, DA7210_A_CP_MODE, 0x7C);
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/* re-lock */
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regmap_write(da7210->regmap, DA7210_A_HID_UNLOCK, 0x00);
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regmap_write(da7210->regmap, DA7210_A_TEST_UNLOCK, 0x00);
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/* Activate all enabled subsystem */
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snd_soc_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
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@ -1055,7 +1041,26 @@ static struct snd_soc_codec_driver soc_codec_dev_da7210 = {
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.num_dapm_routes = ARRAY_SIZE(da7210_audio_map),
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};
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static struct regmap_config da7210_regmap = {
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
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static struct reg_default da7210_regmap_i2c_patch[] = {
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/* System controller master disable */
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{ DA7210_STARTUP1, 0x00 },
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/* make sure that DA7210 use bypass mode before start up */
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{ DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP },
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/* to unlock */
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{ DA7210_A_HID_UNLOCK, 0x8B},
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{ DA7210_A_TEST_UNLOCK, 0xB4},
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{ DA7210_A_PLL1, 0x01},
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{ DA7210_A_CP_MODE, 0x7C},
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/* to re-lock */
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{ DA7210_A_HID_UNLOCK, 0x00},
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{ DA7210_A_TEST_UNLOCK, 0x00},
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};
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static const struct regmap_config da7210_regmap_config_i2c = {
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.reg_bits = 8,
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.val_bits = 8,
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@ -1066,7 +1071,6 @@ static struct regmap_config da7210_regmap = {
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.cache_type = REGCACHE_RBTREE,
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};
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
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static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
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const struct i2c_device_id *id)
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{
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@ -1080,13 +1084,18 @@ static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
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i2c_set_clientdata(i2c, da7210);
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da7210->regmap = regmap_init_i2c(i2c, &da7210_regmap);
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da7210->regmap = regmap_init_i2c(i2c, &da7210_regmap_config_i2c);
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if (IS_ERR(da7210->regmap)) {
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ret = PTR_ERR(da7210->regmap);
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dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
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return ret;
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}
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ret = regmap_register_patch(da7210->regmap, da7210_regmap_i2c_patch,
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ARRAY_SIZE(da7210_regmap_i2c_patch));
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if (ret != 0)
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dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);
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ret = snd_soc_register_codec(&i2c->dev,
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&soc_codec_dev_da7210, &da7210_dai, 1);
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if (ret < 0) {
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@ -1119,7 +1128,7 @@ MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);
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/* I2C codec control layer */
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static struct i2c_driver da7210_i2c_driver = {
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.driver = {
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.name = "da7210-codec",
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.name = "da7210",
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.owner = THIS_MODULE,
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},
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.probe = da7210_i2c_probe,
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@ -1128,11 +1137,111 @@ static struct i2c_driver da7210_i2c_driver = {
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};
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#endif
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#if defined(CONFIG_SPI_MASTER)
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static struct reg_default da7210_regmap_spi_patch[] = {
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/* Dummy read to give two pulses over nCS for SPI */
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{ DA7210_AUX2, 0x00 },
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{ DA7210_AUX2, 0x00 },
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/* System controller master disable */
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{ DA7210_STARTUP1, 0x00 },
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/* make sure that DA7210 use bypass mode before start up */
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{ DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP },
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/* to set PAGE1 of SPI register space */
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{ DA7210_PAGE_CONTROL, 0x80 },
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/* to unlock */
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{ DA7210_A_HID_UNLOCK, 0x8B},
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{ DA7210_A_TEST_UNLOCK, 0xB4},
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{ DA7210_A_PLL1, 0x01},
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{ DA7210_A_CP_MODE, 0x7C},
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/* to re-lock */
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{ DA7210_A_HID_UNLOCK, 0x00},
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{ DA7210_A_TEST_UNLOCK, 0x00},
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/* to set back PAGE0 of SPI register space */
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{ DA7210_PAGE_CONTROL, 0x00 },
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};
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static const struct regmap_config da7210_regmap_config_spi = {
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.reg_bits = 8,
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.val_bits = 8,
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.read_flag_mask = 0x01,
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.write_flag_mask = 0x00,
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.reg_defaults = da7210_reg_defaults,
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.num_reg_defaults = ARRAY_SIZE(da7210_reg_defaults),
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.volatile_reg = da7210_volatile_register,
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.readable_reg = da7210_readable_register,
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.cache_type = REGCACHE_RBTREE,
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};
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static int __devinit da7210_spi_probe(struct spi_device *spi)
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{
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struct da7210_priv *da7210;
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int ret;
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da7210 = devm_kzalloc(&spi->dev, sizeof(struct da7210_priv),
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GFP_KERNEL);
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if (!da7210)
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return -ENOMEM;
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spi_set_drvdata(spi, da7210);
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da7210->regmap = devm_regmap_init_spi(spi, &da7210_regmap_config_spi);
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if (IS_ERR(da7210->regmap)) {
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ret = PTR_ERR(da7210->regmap);
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dev_err(&spi->dev, "Failed to register regmap: %d\n", ret);
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return ret;
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}
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ret = regmap_register_patch(da7210->regmap, da7210_regmap_spi_patch,
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ARRAY_SIZE(da7210_regmap_spi_patch));
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if (ret != 0)
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dev_warn(&spi->dev, "Failed to apply regmap patch: %d\n", ret);
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ret = snd_soc_register_codec(&spi->dev,
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&soc_codec_dev_da7210, &da7210_dai, 1);
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if (ret < 0)
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goto err_regmap;
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return ret;
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err_regmap:
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regmap_exit(da7210->regmap);
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return ret;
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}
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static int __devexit da7210_spi_remove(struct spi_device *spi)
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{
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struct da7210_priv *da7210 = spi_get_drvdata(spi);
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snd_soc_unregister_codec(&spi->dev);
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regmap_exit(da7210->regmap);
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return 0;
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}
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static struct spi_driver da7210_spi_driver = {
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.driver = {
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.name = "da7210",
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.owner = THIS_MODULE,
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},
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.probe = da7210_spi_probe,
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.remove = __devexit_p(da7210_spi_remove)
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};
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#endif
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static int __init da7210_modinit(void)
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{
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int ret = 0;
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
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ret = i2c_add_driver(&da7210_i2c_driver);
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#endif
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#if defined(CONFIG_SPI_MASTER)
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ret = spi_register_driver(&da7210_spi_driver);
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if (ret) {
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printk(KERN_ERR "Failed to register da7210 SPI driver: %d\n",
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ret);
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}
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#endif
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return ret;
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}
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@ -1143,6 +1252,9 @@ static void __exit da7210_exit(void)
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
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i2c_del_driver(&da7210_i2c_driver);
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#endif
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#if defined(CONFIG_SPI_MASTER)
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spi_unregister_driver(&da7210_spi_driver);
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#endif
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}
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module_exit(da7210_exit);
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