MLK-16188-4: drivers: regulator: fixed: add off-on-delay-us

Add off-on-delay-us for fixed regulator.

Signed-off-by: Peng Fan <peng.fan@nxp.com>

diff --git a/drivers/power/regulator/fixed.c b/drivers/power/regulator/fixed.c
index cd52137..738a3b6 100644 (file)
--- a/drivers/power/regulator/fixed.c
+++ b/drivers/power/regulator/fixed.c
@@ -1,5 +1,6 @@
 /*
  *  Copyright (C) 2015 Samsung Electronics
+ *  Copyright 2017 NXP
  *
  *  Przemyslaw Marczak <p.marczak@samsung.com>
  *
@@ -20,6 +21,7 @@ DECLARE_GLOBAL_DATA_PTR;
 struct fixed_regulator_platdata {
        struct gpio_desc gpio; /* GPIO for regulator enable control */
        unsigned int startup_delay_us;
+       unsigned int off_on_delay_us;
 };
 
 static int fixed_regulator_ofdata_to_platdata(struct udevice *dev)
@@ -56,6 +58,9 @@ static int fixed_regulator_ofdata_to_platdata(struct udevice *dev)
        dev_pdata->startup_delay_us = fdtdec_get_uint(gd->fdt_blob,
                                                      dev_of_offset(dev),
                                                      "startup-delay-us", 0);
+       dev_pdata->off_on_delay_us = fdtdec_get_uint(gd->fdt_blob,
+                                                    dev_of_offset(dev),
+                                                    "off-on-delay-us", 0);
 
        return 0;
 }
@@ -125,6 +130,10 @@ static int fixed_regulator_set_enable(struct udevice *dev, bool enable)
        if (enable && dev_pdata->startup_delay_us)
                udelay(dev_pdata->startup_delay_us);
 
+       if (!enable && dev_pdata->off_on_delay_us) {
+               udelay(dev_pdata->off_on_delay_us);
+       }
+
        return 0;
 }