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[media] smiapp: Switch to gpiod API for GPIO control

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Switch from the old gpio API to the new descriptor based gpiod API.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Sakari Ailus 2016-08-13 12:46:50 -03:00 committed by Mauro Carvalho Chehab
parent 7374300191
commit 567716c581
3 changed files with 12 additions and 28 deletions
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36
drivers/media/i2c/smiapp/smiapp-core.c
View file

@ -24,8 +24,8 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of_gpio.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/smiapp.h>
@ -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

1
drivers/media/i2c/smiapp/smiapp.h
View file

@ -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];

3
include/media/i2c/smiapp.h
View file

@ -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_ */