Merge series "regulator: mcp16502: make lpm pin optional" from Claudiu Beznea...

Merge series "regulator: mcp16502: make lpm pin optional" from Claudiu Beznea <claudiu.beznea@microchip.com>:

Hi,

This patch makes the LPM pin as optional as this may be controlled
in the last phase of suspend procedure to decrease the power consumption
while suspended. Along w/ this update the MAINTAINERS entry for this
driver.

Thank you,
Claudiu Beznea

Claudiu Beznea (3):
  dt-bindings: regulator: mcp16502: document lpm as optional
  regulator: mcp16502: lpm pin can be optional on some platforms
  MAINTAINERS: add myself as maintainer for mcp16502

 Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt | 3 ++-
 MAINTAINERS                                                        | 4 ++--
 drivers/regulator/mcp16502.c                                       | 2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

--
2.7.4

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Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt

@@ -4,7 +4,8 @@ Required properties:
 - compatible: "microchip,mcp16502"
 - reg: I2C slave address
 - lpm-gpios: GPIO for LPM pin. Note that this GPIO *must* remain high during
-	     suspend-to-ram, keeping the PMIC into HIBERNATE mode.
+	     suspend-to-ram, keeping the PMIC into HIBERNATE mode; this
+	     property is optional;
 - regulators: A node that houses a sub-node for each regulator within
               the device. Each sub-node is identified using the node's
               name. The content of each sub-node is defined by the

MAINTAINERS

@@ -11690,9 +11690,9 @@ F:	drivers/video/fbdev/atmel_lcdfb.c
 F:	include/video/atmel_lcdc.h
 
 MICROCHIP MCP16502 PMIC DRIVER
-M:	Andrei Stefanescu <andrei.stefanescu@microchip.com>
+M:	Claudiu Beznea <claudiu.beznea@microchip.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
+S:	Supported
 F:	Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt
 F:	drivers/regulator/mcp16502.c
 

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);