From 3c42728c18d093e8951ad6caf7daa89fa2f54702 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Thu, 7 Jan 2021 16:15:26 +0200 Subject: 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: Claudiu Beznea Link: https://lore.kernel.org/r/1610028927-9842-3-git-send-email-claudiu.beznea@microchip.com Signed-off-by: Mark Brown --- drivers/regulator/mcp16502.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/regulator/mcp16502.c') diff --git a/drivers/regulator/mcp16502.c b/drivers/regulator/mcp16502.c index 74ad92dc664a..88c6bd5b6c78 100644 --- a/drivers/regulator/mcp16502.c +++ b/drivers/regulator/mcp16502.c @@ -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); -- cgit v1.2.3