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author | Thomas Niederprüm <niederp@physik.uni-kl.de> | 2015-01-22 00:01:58 +0100 |
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committer | Mark Brown <broonie@kernel.org> | 2015-01-27 18:13:25 +0100 |
commit | f04b1e760a51120f358826d815d12c3f8ecdf1b4 (patch) | |
tree | 15ab3cf75b2dd1d2622c0874532890514e418d05 /sound/soc/codecs/sta32x.c | |
parent | ASoC: sta32x: move code to calculate mclk divider and extrapolation ratio to ... (diff) | |
download | linux-f04b1e760a51120f358826d815d12c3f8ecdf1b4.tar.xz linux-f04b1e760a51120f358826d815d12c3f8ecdf1b4.zip |
ASoC: sta32x: add device tree binding.
make the sta32x driver usable with device tree configs. Code is heavily based
on the sta350 driver.
Signed-off-by: Thomas Niederprüm <niederp@physik.uni-kl.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/sta32x.c')
-rw-r--r-- | sound/soc/codecs/sta32x.c | 108 |
1 files changed, 106 insertions, 2 deletions
diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c index ec2372498c92..669b67f8cee3 100644 --- a/sound/soc/codecs/sta32x.c +++ b/sound/soc/codecs/sta32x.c @@ -24,6 +24,8 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> +#include <linux/of_device.h> +#include <linux/of_gpio.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/gpio/consumer.h> @@ -893,15 +895,49 @@ static int sta32x_probe(struct snd_soc_codec *codec) dev_err(codec->dev, "Failed to startup device\n"); return ret; } - /* set thermal warning adjustment and recovery */ + + /* CONFA */ if (!pdata->thermal_warning_recovery) thermal |= STA32X_CONFA_TWAB; if (!pdata->thermal_warning_adjustment) thermal |= STA32X_CONFA_TWRB; + if (!pdata->fault_detect_recovery) + thermal |= STA32X_CONFA_FDRB; regmap_update_bits(sta32x->regmap, STA32X_CONFA, - STA32X_CONFA_TWAB | STA32X_CONFA_TWRB, + STA32X_CONFA_TWAB | STA32X_CONFA_TWRB | + STA32X_CONFA_FDRB, thermal); + /* CONFC */ + regmap_update_bits(sta32x->regmap, STA32X_CONFC, + STA32X_CONFC_CSZ_MASK, + pdata->drop_compensation_ns + << STA32X_CONFC_CSZ_SHIFT); + + /* CONFE */ + regmap_update_bits(sta32x->regmap, STA32X_CONFE, + STA32X_CONFE_MPCV, + pdata->max_power_use_mpcc ? + STA32X_CONFE_MPCV : 0); + regmap_update_bits(sta32x->regmap, STA32X_CONFE, + STA32X_CONFE_MPC, + pdata->max_power_correction ? + STA32X_CONFE_MPC : 0); + regmap_update_bits(sta32x->regmap, STA32X_CONFE, + STA32X_CONFE_AME, + pdata->am_reduction_mode ? + STA32X_CONFE_AME : 0); + regmap_update_bits(sta32x->regmap, STA32X_CONFE, + STA32X_CONFE_PWMS, + pdata->odd_pwm_speed_mode ? + STA32X_CONFE_PWMS : 0); + + /* CONFF */ + regmap_update_bits(sta32x->regmap, STA32X_CONFF, + STA32X_CONFF_IDE, + pdata->invalid_input_detect_mute ? + STA32X_CONFF_IDE : 0); + /* select output configuration */ regmap_update_bits(sta32x->regmap, STA32X_CONFF, STA32X_CONFF_OCFG_MASK, @@ -977,7 +1013,66 @@ static const struct regmap_config sta32x_regmap = { .rd_table = &sta32x_read_regs, .volatile_table = &sta32x_volatile_regs, }; + +#ifdef CONFIG_OF +static const struct of_device_id st32x_dt_ids[] = { + { .compatible = "st,sta32x", }, + { } }; +MODULE_DEVICE_TABLE(of, st32x_dt_ids); + +static int sta32x_probe_dt(struct device *dev, struct sta32x_priv *sta32x) +{ + struct device_node *np = dev->of_node; + struct sta32x_platform_data *pdata; + u16 tmp; + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + of_property_read_u8(np, "st,output-conf", + &pdata->output_conf); + of_property_read_u8(np, "st,ch1-output-mapping", + &pdata->ch1_output_mapping); + of_property_read_u8(np, "st,ch2-output-mapping", + &pdata->ch2_output_mapping); + of_property_read_u8(np, "st,ch3-output-mapping", + &pdata->ch3_output_mapping); + + if (of_get_property(np, "st,thermal-warning-recovery", NULL)) + pdata->thermal_warning_recovery = 1; + if (of_get_property(np, "st,thermal-warning-adjustment", NULL)) + pdata->thermal_warning_adjustment = 1; + if (of_get_property(np, "st,needs_esd_watchdog", NULL)) + pdata->needs_esd_watchdog = 1; + + tmp = 140; + of_property_read_u16(np, "st,drop-compensation-ns", &tmp); + pdata->drop_compensation_ns = clamp_t(u16, tmp, 0, 300) / 20; + + /* CONFE */ + if (of_get_property(np, "st,max-power-use-mpcc", NULL)) + pdata->max_power_use_mpcc = 1; + + if (of_get_property(np, "st,max-power-correction", NULL)) + pdata->max_power_correction = 1; + + if (of_get_property(np, "st,am-reduction-mode", NULL)) + pdata->am_reduction_mode = 1; + + if (of_get_property(np, "st,odd-pwm-speed-mode", NULL)) + pdata->odd_pwm_speed_mode = 1; + + /* CONFF */ + if (of_get_property(np, "st,invalid-input-detect-mute", NULL)) + pdata->invalid_input_detect_mute = 1; + + sta32x->pdata = pdata; + + return 0; +} +#endif static int sta32x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) @@ -994,6 +1089,14 @@ static int sta32x_i2c_probe(struct i2c_client *i2c, mutex_init(&sta32x->coeff_lock); sta32x->pdata = dev_get_platdata(dev); +#ifdef CONFIG_OF + if (dev->of_node) { + ret = sta32x_probe_dt(dev, sta32x); + if (ret < 0) + return ret; + } +#endif + /* GPIOs */ sta32x->gpiod_nreset = devm_gpiod_get(dev, "reset"); if (IS_ERR(sta32x->gpiod_nreset)) { @@ -1051,6 +1154,7 @@ static struct i2c_driver sta32x_i2c_driver = { .driver = { .name = "sta32x", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(st32x_dt_ids), }, .probe = sta32x_i2c_probe, .remove = sta32x_i2c_remove, |