Add device bindings to support configuring the jack detection configurations. Each configuration needs to specify the connection of the mic det pins, which micbias should be used and the value of the micd polarity GPIO required to activate that configuration. Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx> Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> --- Changes since v1: - Report error from arizona_extcon_get_micd_configs Thanks, Charles drivers/extcon/extcon-arizona.c | 56 +++++++++++++++++++++++++++++++++++++++-- 1 file changed, 54 insertions(+), 2 deletions(-) diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 8647533..c121d01 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -1201,10 +1201,58 @@ static void arizona_micd_set_level(struct arizona *arizona, int index, regmap_update_bits(arizona->regmap, reg, mask, level); } -static int arizona_extcon_device_get_pdata(struct arizona *arizona) +static int arizona_extcon_get_micd_configs(struct device *dev, + struct arizona *arizona) +{ + const char * const prop = "wlf,micd-configs"; + const int entries_per_config = 3; + struct arizona_micd_config *micd_configs; + int nconfs, ret; + int i, j; + u32 *vals; + + nconfs = device_property_read_u32_array(arizona->dev, prop, NULL, 0); + if (nconfs <= 0) + return 0; + + vals = kcalloc(nconfs, sizeof(u32), GFP_KERNEL); + if (!vals) + return -ENOMEM; + + ret = device_property_read_u32_array(arizona->dev, prop, vals, nconfs); + if (ret < 0) + goto out; + + nconfs /= entries_per_config; + + micd_configs = devm_kzalloc(dev, + nconfs * sizeof(struct arizona_micd_range), + GFP_KERNEL); + if (!micd_configs) { + ret = -ENOMEM; + goto out; + } + + for (i = 0, j = 0; i < nconfs; ++i) { + micd_configs[i].src = vals[j++] ? ARIZONA_ACCDET_SRC : 0; + micd_configs[i].bias = vals[j++]; + micd_configs[i].gpio = vals[j++]; + } + + arizona->pdata.micd_configs = micd_configs; + arizona->pdata.num_micd_configs = nconfs; + +out: + kfree(vals); + return ret; +} + +static int arizona_extcon_device_get_pdata(struct device *dev, + struct arizona *arizona) { struct arizona_pdata *pdata = &arizona->pdata; unsigned int val = ARIZONA_ACCDET_MODE_HPL; + int ret; device_property_read_u32(arizona->dev, "wlf,hpdet-channel", &val); switch (val) { @@ -1249,6 +1297,10 @@ static int arizona_extcon_device_get_pdata(struct arizona *arizona) pdata->jd_gpio5_nopull = device_property_read_bool(arizona->dev, "wlf,use-jd2-nopull"); + ret = arizona_extcon_get_micd_configs(dev, arizona); + if (ret < 0) + dev_err(arizona->dev, "Failed to read micd configs: %d\n", ret); + return 0; } @@ -1270,7 +1322,7 @@ static int arizona_extcon_probe(struct platform_device *pdev) return -ENOMEM; if (!dev_get_platdata(arizona->dev)) - arizona_extcon_device_get_pdata(arizona); + arizona_extcon_device_get_pdata(&pdev->dev, arizona); info->micvdd = devm_regulator_get(&pdev->dev, "MICVDD"); if (IS_ERR(info->micvdd)) { -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html