diff options
Diffstat (limited to 'sound/soc/codecs/rt715.c')
| -rw-r--r-- | sound/soc/codecs/rt715.c | 100 |
1 files changed, 84 insertions, 16 deletions
diff --git a/sound/soc/codecs/rt715.c b/sound/soc/codecs/rt715.c index 6c2e165dd621..b59230c8fd32 100644 --- a/sound/soc/codecs/rt715.c +++ b/sound/soc/codecs/rt715.c @@ -16,14 +16,11 @@ #include <linux/pm_runtime.h> #include <linux/pm.h> #include <linux/soundwire/sdw.h> -#include <linux/gpio.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/platform_device.h> #include <linux/regulator/consumer.h> -#include <linux/gpio/consumer.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/of_device.h> #include <sound/core.h> #include <sound/pcm.h> @@ -52,6 +49,60 @@ static int rt715_index_write(struct regmap *regmap, unsigned int reg, return ret; } +static int rt715_index_write_nid(struct regmap *regmap, + unsigned int nid, unsigned int reg, unsigned int value) +{ + int ret; + unsigned int addr = ((RT715_PRIV_INDEX_W_H_2 | nid) << 8) | reg; + + ret = regmap_write(regmap, addr, value); + if (ret < 0) + pr_err("Failed to set private value: %06x <= %04x ret=%d\n", + addr, value, ret); + + return ret; +} + +static int rt715_index_read_nid(struct regmap *regmap, + unsigned int nid, unsigned int reg, unsigned int *value) +{ + int ret; + unsigned int addr = ((RT715_PRIV_INDEX_W_H_2 | nid) << 8) | reg; + + *value = 0; + ret = regmap_read(regmap, addr, value); + if (ret < 0) + pr_err("Failed to get private value: %06x => %04x ret=%d\n", + addr, *value, ret); + + return ret; +} + +static int rt715_index_update_bits(struct regmap *regmap, unsigned int nid, + unsigned int reg, unsigned int mask, unsigned int val) +{ + unsigned int tmp, orig; + int ret; + + ret = rt715_index_read_nid(regmap, nid, reg, &orig); + if (ret < 0) + return ret; + + tmp = orig & ~mask; + tmp |= val & mask; + + return rt715_index_write_nid(regmap, nid, reg, tmp); +} + +static void rt715_reset(struct regmap *regmap) +{ + regmap_write(regmap, RT715_FUNC_RESET, 0); + rt715_index_update_bits(regmap, RT715_VENDOR_REGISTERS, + RT715_VD_CLEAR_CTRL, RT715_CLEAR_HIDDEN_REG, + RT715_CLEAR_HIDDEN_REG); +} + + static void rt715_get_gain(struct rt715_priv *rt715, unsigned int addr_h, unsigned int addr_l, unsigned int val_h, unsigned int *r_val, unsigned int *l_val) @@ -740,8 +791,12 @@ static int rt715_set_bias_level(struct snd_soc_component *component, static int rt715_probe(struct snd_soc_component *component) { + struct rt715_priv *rt715 = snd_soc_component_get_drvdata(component); int ret; + if (!rt715->first_hw_init) + return 0; + ret = pm_runtime_resume(component->dev); if (ret < 0 && ret != -EACCES) return ret; @@ -984,6 +1039,8 @@ int rt715_init(struct device *dev, struct regmap *sdw_regmap, rt715->regmap = regmap; rt715->sdw_regmap = sdw_regmap; + regcache_cache_only(rt715->regmap, true); + /* * Mark hw_init to false * HW init will be performed when device reports present @@ -995,8 +1052,25 @@ int rt715_init(struct device *dev, struct regmap *sdw_regmap, &soc_codec_dev_rt715, rt715_dai, ARRAY_SIZE(rt715_dai)); + if (ret < 0) + return ret; - return ret; + /* set autosuspend parameters */ + pm_runtime_set_autosuspend_delay(dev, 3000); + pm_runtime_use_autosuspend(dev); + + /* make sure the device does not suspend immediately */ + pm_runtime_mark_last_busy(dev); + + pm_runtime_enable(dev); + + /* important note: the device is NOT tagged as 'active' and will remain + * 'suspended' until the hardware is enumerated/initialized. This is required + * to make sure the ASoC framework use of pm_runtime_get_sync() does not silently + * fail with -EACCESS because of race conditions between card creation and enumeration + */ + + return 0; } int rt715_io_init(struct device *dev, struct sdw_slave *slave) @@ -1006,25 +1080,19 @@ int rt715_io_init(struct device *dev, struct sdw_slave *slave) if (rt715->hw_init) return 0; + regcache_cache_only(rt715->regmap, false); + /* - * PM runtime is only enabled when a Slave reports as Attached + * PM runtime status is marked as 'active' only when a Slave reports as Attached */ - if (!rt715->first_hw_init) { - /* set autosuspend parameters */ - pm_runtime_set_autosuspend_delay(&slave->dev, 3000); - pm_runtime_use_autosuspend(&slave->dev); - + if (!rt715->first_hw_init) /* update count of parent 'active' children */ pm_runtime_set_active(&slave->dev); - /* make sure the device does not suspend immediately */ - pm_runtime_mark_last_busy(&slave->dev); - - pm_runtime_enable(&slave->dev); - } - pm_runtime_get_noresume(&slave->dev); + rt715_reset(rt715->regmap); + /* Mute nid=08h/09h */ regmap_write(rt715->regmap, RT715_SET_GAIN_LINE_ADC_H, 0xb080); regmap_write(rt715->regmap, RT715_SET_GAIN_MIX_ADC_H, 0xb080); |