leds: leds-st1202: Initialize hardware before DT node child operations

Arguably, there are more chances of errors occurring during the
initialization of the hardware, so this should complete successfully
before the devicetree node's children are initialized.

st1202_dt_init() fills the led_classdev struct.

st1202_setup() initializes the hardware. Specifically, resets the chip,
enables its phase-shift delay feature, enables the device and disables all
the LEDs channels. All that writing to registers, with no input from
st1202_dt_init().

Real-world testing corroborates that calling st1202_setup() before
st1202_dt_init() doesn't cause any issue during initialization.

Switch the order of st1202_dt_init() and st1202_setup() to ensure the
hardware is correctly initialized before the led_classdev struct is
filled.

Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Link: https://lore.kernel.org/r/CWLP123MB54731877A8DC54EDD33F0229C5C22@CWLP123MB5473.GBRP123.PROD.OUTLOOK.COM
Signed-off-by: Lee Jones <lee@kernel.org>

This commit is contained in:

Manuel Fombuena

2025-02-26 17:06:40 +00:00

committed by

Lee Jones

parent 6d91124e7e

commit a17d9e736d

1 changed files with 2 additions and 2 deletions

									
										drivers/leds/leds-st1202.c
									
		+2
		-2
	
												View File
												
				@@ -360,11 +360,11 @@ static int st1202_probe(struct i2c_client *client)

						return ret;

					chip->client = client;

					ret = st1202_dt_init(chip);

					ret = st1202_setup(chip);

					if (ret < 0)

						return ret;

					ret = st1202_setup(chip);

					ret = st1202_dt_init(chip);

					if (ret < 0)

						return ret;