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[media] tc358743: make reset gpio optional

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Commit 2561482468 ("[media] tc358743: support probe from device tree")
specified in the device tree binding documentation that the reset gpio
is optional. Make the implementation match accordingly.

Signed-off-by: Uwe Kleine-König <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Acked-by: Philipp Zabel <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Uwe Kleine-König 2015-08-18 05:31:10 -03:00 • committed by Mauro Carvalho Chehab
commit 1e137d92c0
1 changed files with 4 additions and 2 deletions
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6
drivers/media/i2c/tc358743.c
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@ -1782,14 +1782,16 @@ static int tc358743_probe_of(struct tc358743_state *state)
state->pdata.ths_trailcnt = 0x2;
state->pdata.hstxvregcnt = 0;
state->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
state->reset_gpio = devm_gpiod_get_optional(dev, "reset",
GPIOD_OUT_LOW);
if (IS_ERR(state->reset_gpio)) {
dev_err(dev, "failed to get reset gpio\n");
ret = PTR_ERR(state->reset_gpio);
goto disable_clk;
}
tc358743_gpio_reset(state);
if (state->reset_gpio)
tc358743_gpio_reset(state);
ret = 0;
goto free_endpoint;