regulator: max77620: add support to configure MPOK

Adding support to configure regulator POK mapping bit
to control nRST_IO and GPIO1 POK function.
In  tegra based platform which uses MAX20024 pmic, when
some of regulators are configured FPS_NONE(flexible power sequencer)
causes PMIC GPIO1 to go low which lead to various other rails turning off,
to avoid this MPOK bit of those regulators need to be set to 0
so that PMIC GPIO1 will not go low.

Signed-off-by: Venkat Reddy Talla <vreddytalla@nvidia.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/include/linux/mfd/max77620.h b/include/linux/mfd/max77620.h
index 3ca0af07..ad2a9a8 100644
--- a/include/linux/mfd/max77620.h
+++ b/include/linux/mfd/max77620.h
@@ -180,6 +180,7 @@
 #define MAX77620_SD_CFG1_FPWM_SD_MASK		BIT(2)
 #define MAX77620_SD_CFG1_FPWM_SD_SKIP		0
 #define MAX77620_SD_CFG1_FPWM_SD_FPWM		BIT(2)
+#define MAX20024_SD_CFG1_MPOK_MASK		BIT(1)
 #define MAX77620_SD_CFG1_FSRADE_SD_MASK		BIT(0)
 #define MAX77620_SD_CFG1_FSRADE_SD_DISABLE	0
 #define MAX77620_SD_CFG1_FSRADE_SD_ENABLE	BIT(0)
@@ -187,6 +188,7 @@
 /* LDO_CNFG2 */
 #define MAX77620_LDO_POWER_MODE_MASK		0xC0
 #define MAX77620_LDO_POWER_MODE_SHIFT		6
+#define MAX20024_LDO_CFG2_MPOK_MASK		BIT(2)
 #define MAX77620_LDO_CFG2_ADE_MASK		BIT(1)
 #define MAX77620_LDO_CFG2_ADE_DISABLE		0
 #define MAX77620_LDO_CFG2_ADE_ENABLE		BIT(1)