diff options
Diffstat (limited to 'sound/soc/intel/boards/bytcr_rt5640.c')
| -rw-r--r-- | sound/soc/intel/boards/bytcr_rt5640.c | 48 |
1 files changed, 43 insertions, 5 deletions
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index c540dfdf045d..404aa7355912 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -17,6 +17,7 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ +#include <linux/i2c.h> #include <linux/init.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -54,6 +55,9 @@ enum { #define BYT_RT5640_MCLK_EN BIT(22) #define BYT_RT5640_MCLK_25MHZ BIT(23) +/* in-diff + terminating empty entry */ +#define MAX_NO_PROPS 2 + struct byt_rt5640_private { struct clk *mclk; }; @@ -438,6 +442,39 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { {} }; +/* + * Note this MUST be called before snd_soc_register_card(), so that the props + * are in place before the codec component driver's probe function parses them. + */ +static int byt_rt5640_add_codec_device_props(const char *i2c_dev_name) +{ + struct property_entry props[MAX_NO_PROPS] = {}; + struct device *i2c_dev; + int ret, cnt = 0; + + i2c_dev = bus_find_device_by_name(&i2c_bus_type, NULL, i2c_dev_name); + if (!i2c_dev) + return -EPROBE_DEFER; + + switch (BYT_RT5640_MAP(byt_rt5640_quirk)) { + case BYT_RT5640_IN1_MAP: + if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) + props[cnt++] = + PROPERTY_ENTRY_BOOL("realtek,in1-differential"); + break; + case BYT_RT5640_IN3_MAP: + if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) + props[cnt++] = + PROPERTY_ENTRY_BOOL("realtek,in3-differential"); + break; + } + + ret = device_add_properties(i2c_dev, props); + put_device(i2c_dev); + + return ret; +} + static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) { struct snd_soc_card *card = runtime->card; @@ -519,11 +556,6 @@ static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) if (ret) return ret; - if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) { - snd_soc_component_update_bits(component, RT5640_IN1_IN2, RT5640_IN_DF1, - RT5640_IN_DF1); - } - if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) { ret = rt5640_dmic_enable(component, 0, 0); if (ret) @@ -841,6 +873,12 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) (unsigned int)byt_rt5640_quirk, quirk_override); byt_rt5640_quirk = quirk_override; } + + /* Must be called before register_card, also see declaration comment. */ + ret_val = byt_rt5640_add_codec_device_props(byt_rt5640_codec_name); + if (ret_val) + return ret_val; + log_quirks(&pdev->dev); if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) || |