Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / mfd / tps6105x.h

diff --git a/kernel/include/linux/mfd/tps6105x.h b/kernel/include/linux/mfd/tps6105x.h
new file mode 100644 (file)
index 0000000..386743d
--- /dev/null
+++ b/kernel/include/linux/mfd/tps6105x.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef MFD_TPS6105X_H
+#define MFD_TPS6105X_H
+
+#include <linux/i2c.h>
+#include <linux/regulator/machine.h>
+
+/*
+ * Register definitions to all subdrivers
+ */
+#define TPS6105X_REG_0                 0x00
+#define TPS6105X_REG0_MODE_SHIFT       6
+#define TPS6105X_REG0_MODE_MASK                (0x03<<6)
+/* These defines for both reg0 and reg1 */
+#define TPS6105X_REG0_MODE_SHUTDOWN    0x00
+#define TPS6105X_REG0_MODE_TORCH       0x01
+#define TPS6105X_REG0_MODE_TORCH_FLASH 0x02
+#define TPS6105X_REG0_MODE_VOLTAGE     0x03
+#define TPS6105X_REG0_VOLTAGE_SHIFT    4
+#define TPS6105X_REG0_VOLTAGE_MASK     (3<<4)
+#define TPS6105X_REG0_VOLTAGE_450      0
+#define TPS6105X_REG0_VOLTAGE_500      1
+#define TPS6105X_REG0_VOLTAGE_525      2
+#define TPS6105X_REG0_VOLTAGE_500_2    3
+#define TPS6105X_REG0_DIMMING_SHIFT    3
+#define TPS6105X_REG0_TORCHC_SHIFT     0
+#define TPS6105X_REG0_TORCHC_MASK      (7<<0)
+#define TPS6105X_REG0_TORCHC_0         0x00
+#define TPS6105X_REG0_TORCHC_50                0x01
+#define TPS6105X_REG0_TORCHC_75                0x02
+#define TPS6105X_REG0_TORCHC_100       0x03
+#define TPS6105X_REG0_TORCHC_150       0x04
+#define TPS6105X_REG0_TORCHC_200       0x05
+#define TPS6105X_REG0_TORCHC_250_400   0x06
+#define TPS6105X_REG0_TORCHC_250_500   0x07
+#define TPS6105X_REG_1                 0x01
+#define TPS6105X_REG1_MODE_SHIFT       6
+#define TPS6105X_REG1_MODE_MASK                (0x03<<6)
+#define TPS6105X_REG1_MODE_SHUTDOWN    0x00
+#define TPS6105X_REG1_MODE_TORCH       0x01
+#define TPS6105X_REG1_MODE_TORCH_FLASH 0x02
+#define TPS6105X_REG1_MODE_VOLTAGE     0x03
+#define TPS6105X_REG_2                 0x02
+#define TPS6105X_REG_3                 0x03
+
+/**
+ * enum tps6105x_mode - desired mode for the TPS6105x
+ * @TPS6105X_MODE_SHUTDOWN: this instance is inactive, not used for anything
+ * @TPS61905X_MODE_TORCH: this instance is used as a LED, usually a while
+ *     LED, for example as backlight or flashlight. If this is set, the
+ *     TPS6105X will register to the LED framework
+ * @TPS6105X_MODE_TORCH_FLASH: this instance is used as a flashgun, usually
+ *     in a camera
+ * @TPS6105X_MODE_VOLTAGE: this instance is used as a voltage regulator and
+ *     will register to the regulator framework
+ */
+enum tps6105x_mode {
+       TPS6105X_MODE_SHUTDOWN,
+       TPS6105X_MODE_TORCH,
+       TPS6105X_MODE_TORCH_FLASH,
+       TPS6105X_MODE_VOLTAGE,
+};
+
+/**
+ * struct tps6105x_platform_data - TPS61905x platform data
+ * @mode: what mode this instance shall be operated in,
+ *     this is not selectable at runtime
+ * @regulator_data: initialization data for the voltage
+ *     regulator if used as a voltage source
+ */
+struct tps6105x_platform_data {
+       enum tps6105x_mode mode;
+       struct regulator_init_data *regulator_data;
+};
+
+/**
+ * struct tps6105x - state holder for the TPS6105x drivers
+ * @mutex: mutex to serialize I2C accesses
+ * @i2c_client: corresponding I2C client
+ * @regulator: regulator device if used in voltage mode
+ */
+struct tps6105x {
+       struct tps6105x_platform_data *pdata;
+       struct mutex            lock;
+       struct i2c_client       *client;
+       struct regulator_dev    *regulator;
+};
+
+extern int tps6105x_set(struct tps6105x *tps6105x, u8 reg, u8 value);
+extern int tps6105x_get(struct tps6105x *tps6105x, u8 reg, u8 *buf);
+extern int tps6105x_mask_and_set(struct tps6105x *tps6105x, u8 reg,
+                                u8 bitmask, u8 bitvalues);
+
+#endif