diff options
Diffstat (limited to 'target/linux/at91/patches-5.10/130-regulator-mcp16502-lpm-pin-can-be-optional-on-some-p.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/130-regulator-mcp16502-lpm-pin-can-be-optional-on-some-p.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.10/130-regulator-mcp16502-lpm-pin-can-be-optional-on-some-p.patch b/target/linux/at91/patches-5.10/130-regulator-mcp16502-lpm-pin-can-be-optional-on-some-p.patch new file mode 100644 index 0000000000..9323fedaf7 --- /dev/null +++ b/target/linux/at91/patches-5.10/130-regulator-mcp16502-lpm-pin-can-be-optional-on-some-p.patch @@ -0,0 +1,35 @@ +From 763fe72f607d4e929d2c710c88e5c6978dd6ad97 Mon Sep 17 00:00:00 2001 +From: Claudiu Beznea <claudiu.beznea@microchip.com> +Date: Thu, 7 Jan 2021 16:15:26 +0200 +Subject: [PATCH 130/247] 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 <claudiu.beznea@microchip.com> +Link: https://lore.kernel.org/r/1610028927-9842-3-git-send-email-claudiu.beznea@microchip.com +Signed-off-by: Mark Brown <broonie@kernel.org> +--- + drivers/regulator/mcp16502.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +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); +-- +2.32.0 + |