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media: i2c: ov4688: fix the power on timing sequence

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Signed-off-by: Zhenke Fan <fanzy.fan@rock-chips.com>
Change-Id: I74a6fdcab6e5e3f3fe57e07024b46c648fd7783a
This commit is contained in:
Zhenke Fan
2021-01-19 11:11:32 +08:00
committed by Tao Huang
parent 32e2880ed5
commit c2e20ad987
1 changed files with 3 additions and 1 deletions
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4
drivers/media/i2c/ov4688.c
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@@ -1184,7 +1184,7 @@ static int __ov4688_start_stream(struct ov4688 *ov4688)
ret |= ov4688_write_reg(ov4688->client, OV4688_REG_CTRL_MODE,
OV4688_REG_VALUE_08BIT, OV4688_MODE_STREAMING);
usleep_range(500, 500 * 2);
usleep_range(1000 * 10, 1000 * 11);
ret |= ov4688_write_array(ov4688->client, ov4688_linear_global_regs);
return ret;
@@ -1308,6 +1308,7 @@ static int __ov4688_power_on(struct ov4688 *ov4688)
goto disable_clk;
}
usleep_range(500, 1000);
if (!IS_ERR(ov4688->reset_gpio))
gpiod_set_value_cansleep(ov4688->reset_gpio, 0);
@@ -1315,6 +1316,7 @@ static int __ov4688_power_on(struct ov4688 *ov4688)
if (!IS_ERR(ov4688->pwdn_gpio))
gpiod_set_value_cansleep(ov4688->pwdn_gpio, 1);
usleep_range(1000 * 10, 1000 * 11);
/* 8192 cycles prior to first SCCB transaction */
delay_us = ov4688_cal_delay(8192);
usleep_range(delay_us, delay_us * 2);