diff options
Diffstat (limited to 'sound/soc/codecs/wcd938x.c')
| -rw-r--r-- | sound/soc/codecs/wcd938x.c | 69 |
1 files changed, 50 insertions, 19 deletions
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c index 1ae498c32391..d9b61eab029a 100644 --- a/sound/soc/codecs/wcd938x.c +++ b/sound/soc/codecs/wcd938x.c @@ -11,7 +11,6 @@ #include <linux/pm_runtime.h> #include <linux/component.h> #include <sound/tlv.h> -#include <linux/of_gpio.h> #include <linux/of.h> #include <sound/jack.h> #include <sound/pcm.h> @@ -19,6 +18,7 @@ #include <linux/regmap.h> #include <sound/soc.h> #include <sound/soc-dapm.h> +#include <linux/mux/consumer.h> #include <linux/regulator/consumer.h> #include "wcd-clsh-v2.h" @@ -171,8 +171,10 @@ struct wcd938x_priv { int flyback_cur_det_disable; int ear_rx_path; int variant; - int reset_gpio; + struct gpio_desc *reset_gpio; struct gpio_desc *us_euro_gpio; + struct mux_control *us_euro_mux; + unsigned int mux_state; u32 micb1_mv; u32 micb2_mv; u32 micb3_mv; @@ -183,6 +185,7 @@ struct wcd938x_priv { bool comp1_enable; bool comp2_enable; bool ldoh; + bool mux_setup_done; }; static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(ear_pa_gain, 600, -1800); @@ -3230,17 +3233,28 @@ static void wcd938x_dt_parse_micbias_info(struct device *dev, struct wcd938x_pri dev_info(dev, "%s: Micbias4 DT property not found\n", __func__); } -static bool wcd938x_swap_gnd_mic(struct snd_soc_component *component, bool active) +static bool wcd938x_swap_gnd_mic(struct snd_soc_component *component) { - int value; - - struct wcd938x_priv *wcd938x; + struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component); + struct device *dev = component->dev; + int ret; - wcd938x = snd_soc_component_get_drvdata(component); + if (wcd938x->us_euro_mux) { + if (wcd938x->mux_setup_done) + mux_control_deselect(wcd938x->us_euro_mux); - value = gpiod_get_value(wcd938x->us_euro_gpio); + ret = mux_control_try_select(wcd938x->us_euro_mux, !wcd938x->mux_state); + if (ret) { + dev_err(dev, "Error (%d) Unable to select us/euro mux state\n", ret); + wcd938x->mux_setup_done = false; + return false; + } + wcd938x->mux_setup_done = true; + } else { + gpiod_set_value(wcd938x->us_euro_gpio, !wcd938x->mux_state); + } - gpiod_set_value(wcd938x->us_euro_gpio, !value); + wcd938x->mux_state = !wcd938x->mux_state; return true; } @@ -3251,16 +3265,30 @@ static int wcd938x_populate_dt_data(struct wcd938x_priv *wcd938x, struct device struct wcd_mbhc_config *cfg = &wcd938x->mbhc_cfg; int ret; - wcd938x->reset_gpio = of_get_named_gpio(dev->of_node, "reset-gpios", 0); - if (wcd938x->reset_gpio < 0) - return dev_err_probe(dev, wcd938x->reset_gpio, + wcd938x->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(wcd938x->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(wcd938x->reset_gpio), "Failed to get reset gpio\n"); - wcd938x->us_euro_gpio = devm_gpiod_get_optional(dev, "us-euro", - GPIOD_OUT_LOW); - if (IS_ERR(wcd938x->us_euro_gpio)) - return dev_err_probe(dev, PTR_ERR(wcd938x->us_euro_gpio), - "us-euro swap Control GPIO not found\n"); + if (of_property_present(dev->of_node, "mux-controls")) { + wcd938x->us_euro_mux = devm_mux_control_get(dev, NULL); + if (IS_ERR(wcd938x->us_euro_mux)) { + ret = PTR_ERR(wcd938x->us_euro_mux); + return dev_err_probe(dev, ret, "failed to get mux control\n"); + } + + ret = mux_control_try_select(wcd938x->us_euro_mux, wcd938x->mux_state); + if (ret) { + dev_err(dev, "Error (%d) Unable to select us/euro mux state\n", ret); + return ret; + } + wcd938x->mux_setup_done = true; + } else { + wcd938x->us_euro_gpio = devm_gpiod_get_optional(dev, "us-euro", GPIOD_OUT_LOW); + if (IS_ERR(wcd938x->us_euro_gpio)) + return dev_err_probe(dev, PTR_ERR(wcd938x->us_euro_gpio), + "us-euro swap Control GPIO not found\n"); + } cfg->swap_gnd_mic = wcd938x_swap_gnd_mic; @@ -3297,10 +3325,10 @@ static int wcd938x_populate_dt_data(struct wcd938x_priv *wcd938x, struct device static int wcd938x_reset(struct wcd938x_priv *wcd938x) { - gpio_direction_output(wcd938x->reset_gpio, 0); + gpiod_set_value(wcd938x->reset_gpio, 1); /* 20us sleep required after pulling the reset gpio to LOW */ usleep_range(20, 30); - gpio_set_value(wcd938x->reset_gpio, 1); + gpiod_set_value(wcd938x->reset_gpio, 0); /* 20us sleep required after pulling the reset gpio to HIGH */ usleep_range(20, 30); @@ -3576,6 +3604,9 @@ static void wcd938x_remove(struct platform_device *pdev) pm_runtime_set_suspended(dev); pm_runtime_dont_use_autosuspend(dev); + if (wcd938x->us_euro_mux && wcd938x->mux_setup_done) + mux_control_deselect(wcd938x->us_euro_mux); + regulator_bulk_disable(WCD938X_MAX_SUPPLY, wcd938x->supplies); regulator_bulk_free(WCD938X_MAX_SUPPLY, wcd938x->supplies); } |