Add a virtual PMIC in order to supply the regulators that pn544 needed.
Change-Id: I28ea959d760c8f264ce968df77b087d554140181
Signed-off-by: Neil Zhang <zhangwm@xxxxxxxxxxx>
---
drivers/regulator/Kconfig | 5 ++
drivers/regulator/Makefile | 1 +
drivers/regulator/vpmic.c | 135 +++++++++++++++++++++++++++++++++++++++
include/linux/regulator/vpmic.h | 25 +++++++
4 files changed, 166 insertions(+), 0 deletions(-)
create mode 100644 drivers/regulator/vpmic.c
create mode 100644 include/linux/regulator/vpmic.h
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index a4bf594..fed4440 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -263,6 +263,11 @@ config REGULATOR_88PM8607
help
This driver supports 88PM8607 voltage regulator chips.
+config REGULATOR_VPMIC
+ bool "Marvell VPMIC Power regulators"
+ help
+ This driver supports VPMIC voltage regulator, only for NFC test usage.
+
config REGULATOR_88PM800
bool "Marvell 88PM800 Power regulators"
depends on MFD_88PM80X=y
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index c4f4458..f7df62d 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
+obj-$(CONFIG_REGULATOR_VPMIC) += vpmic.o
obj-$(CONFIG_REGULATOR_88PM800) += 88pm800.o
obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o
diff --git a/drivers/regulator/vpmic.c b/drivers/regulator/vpmic.c
new file mode 100644
index 0000000..288841b
--- /dev/null
+++ b/drivers/regulator/vpmic.c
@@ -0,0 +1,135 @@
+/*
+ * Virtual Regulators driver for PN544
+ *
+ * Copyright (C) 2010 Marvell International Ltd.
+ * Neil Zhang <zhangwm@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#include <linux/regulator/vpmic.h>
+
+
+struct vpmic_regulator_info {
+ struct regulator_desc desc;
+ struct regulator_dev *regulator;
+};
+
+
+static int vpmic_enable(struct regulator_dev *rdev)
+{
+ struct vpmic_regulator_info *info = rdev_get_drvdata(rdev);
+ dev_dbg(&rdev->dev, "vpmic_enable: %s\n", info->desc.name);
+
+ return 0;
+}
+
+static int vpmic_disable(struct regulator_dev *rdev)
+{
+ struct vpmic_regulator_info *info = rdev_get_drvdata(rdev);
+ dev_dbg(&rdev->dev, "vpmic_disable: %s\n", info->desc.name);
+
+ return 0;
+}
+
+
+static struct regulator_ops vpmic_regulator_ops = {
+ .enable = vpmic_enable,
+ .disable = vpmic_disable,
+};
+
+
+#define VPMIC_DVC(vreg) \
+{ \
+ .desc = { \
+ .name = #vreg, \
+ .ops = &vpmic_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = VPMIC_ID_##vreg, \
+ .owner = THIS_MODULE, \
+ }, \
+}
+
+
+static struct vpmic_regulator_info vpmic_info[] = {
+ VPMIC_DVC(Vdd_IO),
+ VPMIC_DVC(VBat),
+ VPMIC_DVC(VSim),
+};
+
+
+static int __devinit vpmic_regulator_probe(struct platform_device *pdev)
+{
+ struct vpmic_regulator_info *info = NULL;
+ struct regulator_init_data *pdata = NULL;
+ int i = 0;
+
+ pdata = pdev->dev.platform_data;
+ if (pdata == NULL)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(vpmic_info); i++) {
+ info = &vpmic_info[i];
+ if (!strcmp(info->desc.name, pdata->constraints.name))
+ break;
+ }
+
+ if (i >= ARRAY_SIZE(vpmic_info)) {
+ dev_err(&pdev->dev, "Failed to find regulator %s\n",
+ pdata->constraints.name);
+ return -EINVAL;
+ }
+
+ info->regulator = regulator_register(&info->desc, &pdev->dev,
+ pdata, info);
+ if (IS_ERR(info->regulator)) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ info->desc.name);
+ return PTR_ERR(info->regulator);
+ }
+
+ platform_set_drvdata(pdev, info);
+
+ return 0;
+}
+
+static int __devexit vpmic_regulator_remove(struct platform_device *pdev)
+{
+ struct vpmic_regulator_info *info = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ regulator_unregister(info->regulator);
+ return 0;
+}
+
+static struct platform_driver vpmic_regulator_driver = {
+ .driver = {
+ .name = "vpmic-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = vpmic_regulator_probe,
+ .remove = __devexit_p(vpmic_regulator_remove),
+};
+
+static int __init vpmic_regulator_init(void)
+{
+ return platform_driver_register(&vpmic_regulator_driver);
+}
+subsys_initcall(vpmic_regulator_init);
+
+static void __exit vpmic_regulator_exit(void)
+{
+ platform_driver_unregister(&vpmic_regulator_driver);
+}
+module_exit(vpmic_regulator_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Regulator Driver for Marvell Virtual PMIC");
diff --git a/include/linux/regulator/vpmic.h b/include/linux/regulator/vpmic.h
new file mode 100644
index 0000000..0e8e5bf
--- /dev/null
+++ b/include/linux/regulator/vpmic.h
@@ -0,0 +1,25 @@
+/*
+ * Marvell vpmic Interface
+ *
+ * Copyright (C) 2010 Marvell International Ltd.
+ * Neil Zhang <zhangwm@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+
+#ifndef __VPMIC_H
+#define __VPMIC_H
+
+
+enum {
+ VPMIC_ID_Vdd_IO = 0,
+ VPMIC_ID_VBat,
+ VPMIC_ID_VSim,
+ VPMIC_ID_RG_MAX,
+};
+
+
+#endif
--
1.7.4.1
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
