Unverified Commit 3c42728c authored by Claudiu Beznea's avatar Claudiu Beznea Committed by Mark Brown
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regulator: mcp16502: lpm pin can be optional on some platforms 



On some platform (e.g. SAMA7G5) LPM pin should be optional as it can
be controlled explicitly (via shutdown controller registers) in the
platform specific power saving code to decrease the power consumption
while suspended as this SoC pin may be connected to other devices that
could take power saving actions based on its value.

Signed-off-by: default avatarClaudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/1610028927-9842-3-git-send-email-claudiu.beznea@microchip.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f45c522c

drivers/regulator/mcp16502.c

+1 −1
Original line number Diff line number Diff line
@@ -550,7 +550,7 @@ static int mcp16502_probe(struct i2c_client *client, 
	config.regmap = rmap;

	config.driver_data = mcp;



	mcp->lpm = devm_gpiod_get(dev, "lpm", GPIOD_OUT_LOW);

	mcp->lpm = devm_gpiod_get_optional(dev, "lpm", GPIOD_OUT_LOW);

	if (IS_ERR(mcp->lpm)) {

		dev_err(dev, "failed to get lpm pin: %ld\n", PTR_ERR(mcp->lpm));

		return PTR_ERR(mcp->lpm);