From b6118100382c9e4c8ca623b3a8e8bf1a09c42aa5 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Tue, 6 May 2025 15:29:36 +0800 Subject: [PATCH] ASoC: codec: cs42l73: Convert to GPIO descriptors of_gpio.h is deprecated, update the driver to use GPIO descriptors. - Use devm_gpiod_get_optional to get GPIO descriptor with default polarity GPIOD_OUT_LOW, set consumer name. - Use gpiod_set_value_cansleep to configure output value. Checking the current driver using legacy GPIO API, the reset value is first output HIGH, then LOW, then HIGH. Checking the datasheet, Hold RESET LOW (active) until all the power supply rails have risen to greater than or equal to the minimum recommended operating voltages. Since the driver has been here for quite long time and no complain on the reset flow, still follow original flow when using GPIOD descriptors. Per datasheet, the DTS polarity should be GPIOD_ACTIVE_LOW. The binding example use value 0(GPIOD_ACTIVE_HIGH) which seems wrong. There is no in-tree DTS has the device, so all should be fine. Signed-off-by: Peng Fan Link: https://patch.msgid.link/20250506-csl42x-v3-6-e9496db544c4@nxp.com Signed-off-by: Mark Brown --- sound/soc/codecs/cs42l73.c | 26 +++++++++++--------------- 1 file changed, 11 insertions(+), 15 deletions(-) diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c index c09c23487d2e..535a867f9f2a 100644 --- a/sound/soc/codecs/cs42l73.c +++ b/sound/soc/codecs/cs42l73.c @@ -9,12 +9,12 @@ */ #include +#include #include #include #include #include #include -#include #include #include #include @@ -30,7 +30,7 @@ struct cs42l73_platform_data { /* RST GPIO */ - unsigned int reset_gpio; + struct gpio_desc *reset_gpio; unsigned int chgfreq; int jack_detection; unsigned int mclk_freq; @@ -1307,23 +1307,19 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client) if (of_property_read_u32(i2c_client->dev.of_node, "chgfreq", &val32) >= 0) pdata->chgfreq = val32; } - pdata->reset_gpio = of_get_named_gpio(i2c_client->dev.of_node, "reset-gpio", 0); + pdata->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, "reset", GPIOD_OUT_LOW); + + if (IS_ERR(pdata->reset_gpio)) + return PTR_ERR(pdata->reset_gpio); + + gpiod_set_consumer_name(pdata->reset_gpio, "CS42L73 /RST"); cs42l73->pdata = *pdata; i2c_set_clientdata(i2c_client, cs42l73); if (cs42l73->pdata.reset_gpio) { - ret = devm_gpio_request_one(&i2c_client->dev, - cs42l73->pdata.reset_gpio, - GPIOF_OUT_INIT_HIGH, - "CS42L73 /RST"); - if (ret < 0) { - dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n", - cs42l73->pdata.reset_gpio, ret); - return ret; - } - gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 0); - gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 1); + gpiod_set_value_cansleep(cs42l73->pdata.reset_gpio, 1); + gpiod_set_value_cansleep(cs42l73->pdata.reset_gpio, 0); } /* initialize codec */ @@ -1360,7 +1356,7 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client) return 0; err_reset: - gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 0); + gpiod_set_value_cansleep(cs42l73->pdata.reset_gpio, 1); return ret; } -- 2.50.1