From 567716c5817cbcc482f70724d7f98aa6702c6e4c Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Sat, 13 Aug 2016 12:46:50 -0300 Subject: [PATCH] [media] smiapp: Switch to gpiod API for GPIO control Switch from the old gpio API to the new descriptor based gpiod API. Signed-off-by: Sakari Ailus Reviewed-by: Sebastian Reichel Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/smiapp/smiapp-core.c | 36 ++++++++------------------ drivers/media/i2c/smiapp/smiapp.h | 1 + include/media/i2c/smiapp.h | 3 --- 3 files changed, 12 insertions(+), 28 deletions(-) diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c index 103e33583f68..061f44a611c1 100644 --- a/drivers/media/i2c/smiapp/smiapp-core.c +++ b/drivers/media/i2c/smiapp/smiapp-core.c @@ -24,8 +24,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -1212,8 +1212,7 @@ static int smiapp_power_on(struct smiapp_sensor *sensor) } usleep_range(1000, 1000); - if (gpio_is_valid(sensor->hwcfg->xshutdown)) - gpio_set_value(sensor->hwcfg->xshutdown, 1); + gpiod_set_value(sensor->xshutdown, 1); sleep = SMIAPP_RESET_DELAY(sensor->hwcfg->ext_clk); usleep_range(sleep, sleep); @@ -1322,8 +1321,7 @@ static int smiapp_power_on(struct smiapp_sensor *sensor) return 0; out_cci_addr_fail: - if (gpio_is_valid(sensor->hwcfg->xshutdown)) - gpio_set_value(sensor->hwcfg->xshutdown, 0); + gpiod_set_value(sensor->xshutdown, 0); if (sensor->hwcfg->set_xclk) sensor->hwcfg->set_xclk(&sensor->src->sd, 0); else @@ -1348,8 +1346,7 @@ static void smiapp_power_off(struct smiapp_sensor *sensor) SMIAPP_REG_U8_SOFTWARE_RESET, SMIAPP_SOFTWARE_RESET); - if (gpio_is_valid(sensor->hwcfg->xshutdown)) - gpio_set_value(sensor->hwcfg->xshutdown, 0); + gpiod_set_value(sensor->xshutdown, 0); if (sensor->hwcfg->set_xclk) sensor->hwcfg->set_xclk(&sensor->src->sd, 0); else @@ -2572,17 +2569,10 @@ static int smiapp_init(struct smiapp_sensor *sensor) } } - if (gpio_is_valid(sensor->hwcfg->xshutdown)) { - rval = devm_gpio_request_one( - &client->dev, sensor->hwcfg->xshutdown, 0, - "SMIA++ xshutdown"); - if (rval < 0) { - dev_err(&client->dev, - "unable to acquire reset gpio %d\n", - sensor->hwcfg->xshutdown); - return rval; - } - } + sensor->xshutdown = devm_gpiod_get_optional(&client->dev, "xshutdown", + GPIOD_OUT_LOW); + if (IS_ERR(sensor->xshutdown)) + return PTR_ERR(sensor->xshutdown); rval = smiapp_power_on(sensor); if (rval) @@ -3020,9 +3010,6 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev) hwcfg->lanes = bus_cfg->bus.mipi_csi2.num_data_lanes; dev_dbg(dev, "lanes %u\n", hwcfg->lanes); - /* xshutdown GPIO is optional */ - hwcfg->xshutdown = of_get_named_gpio(dev->of_node, "reset-gpios", 0); - /* NVM size is not mandatory */ of_property_read_u32(dev->of_node, "nokia,nvm-size", &hwcfg->nvm_size); @@ -3034,8 +3021,8 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev) goto out_err; } - dev_dbg(dev, "reset %d, nvm %d, clk %d, csi %d\n", hwcfg->xshutdown, - hwcfg->nvm_size, hwcfg->ext_clk, hwcfg->csi_signalling_mode); + dev_dbg(dev, "nvm %d, clk %d, csi %d\n", hwcfg->nvm_size, + hwcfg->ext_clk, hwcfg->csi_signalling_mode); if (!bus_cfg->nr_of_link_frequencies) { dev_warn(dev, "no link frequencies defined\n"); @@ -3120,8 +3107,7 @@ static int smiapp_remove(struct i2c_client *client) v4l2_async_unregister_subdev(subdev); if (sensor->power_count) { - if (gpio_is_valid(sensor->hwcfg->xshutdown)) - gpio_set_value(sensor->hwcfg->xshutdown, 0); + gpiod_set_value(sensor->xshutdown, 0); if (sensor->hwcfg->set_xclk) sensor->hwcfg->set_xclk(&sensor->src->sd, 0); else diff --git a/drivers/media/i2c/smiapp/smiapp.h b/drivers/media/i2c/smiapp/smiapp.h index 6ff095ae5faf..c504bd8f36b8 100644 --- a/drivers/media/i2c/smiapp/smiapp.h +++ b/drivers/media/i2c/smiapp/smiapp.h @@ -200,6 +200,7 @@ struct smiapp_sensor { struct smiapp_hwconfig *hwcfg; struct regulator *vana; struct clk *ext_clk; + struct gpio_desc *xshutdown; u32 limits[SMIAPP_LIMIT_LAST]; u8 nbinning_subtypes; struct smiapp_binning_subtype binning_subtypes[SMIAPP_BINNING_SUBTYPES]; diff --git a/include/media/i2c/smiapp.h b/include/media/i2c/smiapp.h index a4a1b510c9d3..eacc3f4e3deb 100644 --- a/include/media/i2c/smiapp.h +++ b/include/media/i2c/smiapp.h @@ -36,8 +36,6 @@ #define SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_STROBE 1 #define SMIAPP_CSI_SIGNALLING_MODE_CSI2 2 -#define SMIAPP_NO_XSHUTDOWN -1 - /* * Sometimes due to board layout considerations the camera module can be * mounted rotated. The typical rotation used is 180 degrees which can be @@ -77,7 +75,6 @@ struct smiapp_hwconfig { struct smiapp_flash_strobe_parms *strobe_setup; int (*set_xclk)(struct v4l2_subdev *sd, int hz); - int32_t xshutdown; /* gpio or SMIAPP_NO_XSHUTDOWN */ }; #endif /* __SMIAPP_H_ */ -- 2.30.2