diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/adau1701.c | 57 |
1 files changed, 55 insertions, 2 deletions
diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c index 05d5eb5984b6..d4e219b6b98f 100644 --- a/sound/soc/codecs/adau1701.c +++ b/sound/soc/codecs/adau1701.c @@ -22,9 +22,14 @@ #include <sound/pcm_params.h> #include <sound/soc.h> +#include <asm/unaligned.h> + #include "sigmadsp.h" #include "adau1701.h" +#define ADAU1701_SAFELOAD_DATA(i) (0x0810 + (i)) +#define ADAU1701_SAFELOAD_ADDR(i) (0x0815 + (i)) + #define ADAU1701_DSPCTRL 0x081c #define ADAU1701_SEROCTL 0x081e #define ADAU1701_SERICTL 0x081f @@ -42,6 +47,7 @@ #define ADAU1701_DSPCTRL_CR (1 << 2) #define ADAU1701_DSPCTRL_DAM (1 << 3) #define ADAU1701_DSPCTRL_ADM (1 << 4) +#define ADAU1701_DSPCTRL_IST (1 << 5) #define ADAU1701_DSPCTRL_SR_48 0x00 #define ADAU1701_DSPCTRL_SR_96 0x01 #define ADAU1701_DSPCTRL_SR_192 0x02 @@ -102,6 +108,7 @@ struct adau1701 { unsigned int pll_clkdiv; unsigned int sysclk; struct regmap *regmap; + struct i2c_client *client; u8 pin_config[12]; struct sigmadsp *sigmadsp; @@ -161,6 +168,7 @@ static bool adau1701_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case ADAU1701_DACSET: + case ADAU1701_DSPCTRL: return true; default: return false; @@ -240,6 +248,50 @@ static int adau1701_reg_read(void *context, unsigned int reg, return 0; } +static int adau1701_safeload(struct sigmadsp *sigmadsp, unsigned int addr, + const uint8_t bytes[], size_t len) +{ + struct i2c_client *client = to_i2c_client(sigmadsp->dev); + struct adau1701 *adau1701 = i2c_get_clientdata(client); + unsigned int val; + unsigned int i; + uint8_t buf[10]; + int ret; + + ret = regmap_read(adau1701->regmap, ADAU1701_DSPCTRL, &val); + if (ret) + return ret; + + if (val & ADAU1701_DSPCTRL_IST) + msleep(50); + + for (i = 0; i < len / 4; i++) { + put_unaligned_le16(ADAU1701_SAFELOAD_DATA(i), buf); + buf[2] = 0x00; + memcpy(buf + 3, bytes + i * 4, 4); + ret = i2c_master_send(client, buf, 7); + if (ret < 0) + return ret; + else if (ret != 7) + return -EIO; + + put_unaligned_le16(ADAU1701_SAFELOAD_ADDR(i), buf); + put_unaligned_le16(addr + i, buf + 2); + ret = i2c_master_send(client, buf, 4); + if (ret < 0) + return ret; + else if (ret != 4) + return -EIO; + } + + return regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL, + ADAU1701_DSPCTRL_IST, ADAU1701_DSPCTRL_IST); +} + +static const struct sigmadsp_ops adau1701_sigmadsp_ops = { + .safeload = adau1701_safeload, +}; + static int adau1701_reset(struct snd_soc_codec *codec, unsigned int clkdiv, unsigned int rate) { @@ -684,6 +736,7 @@ static int adau1701_i2c_probe(struct i2c_client *client, if (!adau1701) return -ENOMEM; + adau1701->client = client; adau1701->regmap = devm_regmap_init(dev, NULL, client, &adau1701_regmap); if (IS_ERR(adau1701->regmap)) @@ -740,8 +793,8 @@ static int adau1701_i2c_probe(struct i2c_client *client, i2c_set_clientdata(client, adau1701); - adau1701->sigmadsp = devm_sigmadsp_init_i2c(client, NULL, - ADAU1701_FIRMWARE); + adau1701->sigmadsp = devm_sigmadsp_init_i2c(client, + &adau1701_sigmadsp_ops, ADAU1701_FIRMWARE); if (IS_ERR(adau1701->sigmadsp)) return PTR_ERR(adau1701->sigmadsp); |