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media: i2c: gc8034: adjust supply sequence to suit spec

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Signed-off-by: Wang Panzhenzhuan <randy.wang@rock-chips.com>
Change-Id: I8089970ea321472c3d66e6e65c33954010367da2
This commit is contained in:
Wang Panzhenzhuan
2022-06-23 03:53:28 +00:00
committed by Tao Huang
parent 332f5e008a
commit fbd4a4eb7e
1 changed files with 29 additions and 3 deletions
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32
drivers/media/i2c/gc8034.c
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@@ -17,6 +17,7 @@
* V0.0X01.0X08
* 1. default support 2lane full 30fps.
* 2. default support rk otp spec.
* V0.0X01.0X09 adjust supply sequence to suit spec
*/
//#define DEBUG
#include <linux/clk.h>
@@ -46,7 +47,7 @@
#include <linux/of_graph.h>
#include "otp_eeprom.h"
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x08)
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x09)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
@@ -105,9 +106,9 @@
#define GC8034_2LANE_30FPS
static const char * const gc8034_supply_names[] = {
"avdd", /* Analog power */
"dovdd", /* Digital I/O power */
"dvdd", /* Digital core power */
"avdd", /* Analog power */
};
#define GC8034_NUM_SUPPLIES ARRAY_SIZE(gc8034_supply_names)
@@ -2503,6 +2504,31 @@ static inline u32 gc8034_cal_delay(u32 cycles)
return DIV_ROUND_UP(cycles, GC8034_XVCLK_FREQ / 1000 / 1000);
}
static int gc8034_enable_regulators(struct gc8034 *gc8034,
struct regulator_bulk_data *consumers)
{
int i, j;
int ret = 0;
struct device *dev = &gc8034->client->dev;
int num_consumers = GC8034_NUM_SUPPLIES;
for (i = 0; i < num_consumers; i++) {
ret = regulator_enable(consumers[i].consumer);
if (ret < 0) {
dev_err(dev, "Failed to enable regulator: %s\n",
consumers[i].supply);
goto err;
}
}
return 0;
err:
for (j = 0; j < i; j++)
regulator_disable(consumers[j].consumer);
return ret;
}
static int __gc8034_power_on(struct gc8034 *gc8034)
{
int ret;
@@ -2529,7 +2555,7 @@ static int __gc8034_power_on(struct gc8034 *gc8034)
if (!IS_ERR(gc8034->reset_gpio))
gpiod_set_value_cansleep(gc8034->reset_gpio, 1);
ret = regulator_bulk_enable(GC8034_NUM_SUPPLIES, gc8034->supplies);
ret = gc8034_enable_regulators(gc8034, gc8034->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;