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Diffstat (limited to 'roms/u-boot/drivers/power/regulator/fixed.c')
-rw-r--r--roms/u-boot/drivers/power/regulator/fixed.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/power/regulator/fixed.c b/roms/u-boot/drivers/power/regulator/fixed.c
new file mode 100644
index 000000000..d3e0fb672
--- /dev/null
+++ b/roms/u-boot/drivers/power/regulator/fixed.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2015 Samsung Electronics
+ *
+ * Przemyslaw Marczak <p.marczak@samsung.com>
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <dm.h>
+#include <log.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+
+#include "regulator_common.h"
+
+static int fixed_regulator_of_to_plat(struct udevice *dev)
+{
+ struct dm_regulator_uclass_plat *uc_pdata;
+ struct regulator_common_plat *dev_pdata;
+
+ dev_pdata = dev_get_plat(dev);
+ uc_pdata = dev_get_uclass_plat(dev);
+ if (!uc_pdata)
+ return -ENXIO;
+
+ uc_pdata->type = REGULATOR_TYPE_FIXED;
+
+ return regulator_common_of_to_plat(dev, dev_pdata, "gpio");
+}
+
+static int fixed_regulator_get_value(struct udevice *dev)
+{
+ struct dm_regulator_uclass_plat *uc_pdata;
+
+ uc_pdata = dev_get_uclass_plat(dev);
+ if (!uc_pdata)
+ return -ENXIO;
+
+ if (uc_pdata->min_uV != uc_pdata->max_uV) {
+ debug("Invalid constraints for: %s\n", uc_pdata->name);
+ return -EINVAL;
+ }
+
+ return uc_pdata->min_uV;
+}
+
+static int fixed_regulator_get_current(struct udevice *dev)
+{
+ struct dm_regulator_uclass_plat *uc_pdata;
+
+ uc_pdata = dev_get_uclass_plat(dev);
+ if (!uc_pdata)
+ return -ENXIO;
+
+ if (uc_pdata->min_uA != uc_pdata->max_uA) {
+ debug("Invalid constraints for: %s\n", uc_pdata->name);
+ return -EINVAL;
+ }
+
+ return uc_pdata->min_uA;
+}
+
+static int fixed_regulator_get_enable(struct udevice *dev)
+{
+ return regulator_common_get_enable(dev, dev_get_plat(dev));
+}
+
+static int fixed_regulator_set_enable(struct udevice *dev, bool enable)
+{
+ return regulator_common_set_enable(dev, dev_get_plat(dev), enable);
+}
+
+static const struct dm_regulator_ops fixed_regulator_ops = {
+ .get_value = fixed_regulator_get_value,
+ .get_current = fixed_regulator_get_current,
+ .get_enable = fixed_regulator_get_enable,
+ .set_enable = fixed_regulator_set_enable,
+};
+
+static const struct udevice_id fixed_regulator_ids[] = {
+ { .compatible = "regulator-fixed" },
+ { },
+};
+
+U_BOOT_DRIVER(regulator_fixed) = {
+ .name = "regulator_fixed",
+ .id = UCLASS_REGULATOR,
+ .ops = &fixed_regulator_ops,
+ .of_match = fixed_regulator_ids,
+ .of_to_plat = fixed_regulator_of_to_plat,
+ .plat_auto = sizeof(struct regulator_common_plat),
+};