Add mfd structure which refrences sub-driver initialization data. For example, for a giving hardware implementation, the voltage regulator sub-driver initialization data provides the mapping betten a voltage regulator and what the output voltage is being used for.
Signed-off-by: Todd Fischer <[email protected]> --- arch/arm/mach-davinci/board-da850-evm.c | 7 ++++++- drivers/regulator/tps6507x-regulator.c | 14 ++++++++++++-- include/linux/mfd/tps6507x.h | 11 +++++++++++ 3 files changed, 29 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index 411284d..d059924 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -17,6 +17,7 @@ #include <linux/i2c.h> #include <linux/i2c/at24.h> #include <linux/i2c/pca953x.h> +#include <linux/mfd/tps6507x.h> #include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> @@ -533,10 +534,14 @@ struct regulator_init_data tps65070_regulator_data[] = { }, }; +static struct tps6507x_board tps_board = { + .tps6507x_pmic_init_data = &tps65070_regulator_data[0], +}; + static struct i2c_board_info __initdata da850evm_tps65070_info[] = { { I2C_BOARD_INFO("tps6507x", 0x48), - .platform_data = &tps65070_regulator_data[0], + .platform_data = &tps_board, }, }; diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index 91172e3..becf652 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -488,6 +488,7 @@ static int __devinit tps_6507x_probe(struct i2c_client *client, struct regulator_init_data *init_data; struct regulator_dev *rdev; struct tps_pmic *tps; + struct tps6507x_board *tps_board; int i; int error; @@ -496,12 +497,21 @@ static int __devinit tps_6507x_probe(struct i2c_client *client, return -EIO; /** + * tps_board points to pmic related constants + * coming from the board-evm file. + */ + + tps_board = dev_get_platdata(&client->dev); + if (!tps_board) + return -EINVAL; + + /** * init_data points to array of regulator_init structures * coming from the board-evm file. */ - init_data = client->dev.platform_data; + init_data = tps_board->tps6507x_pmic_init_data; if (!init_data) - return -EIO; + return -EINVAL; tps = kzalloc(sizeof(*tps), GFP_KERNEL); if (!tps) diff --git a/include/linux/mfd/tps6507x.h b/include/linux/mfd/tps6507x.h index 155bee1..fd73af5 100644 --- a/include/linux/mfd/tps6507x.h +++ b/include/linux/mfd/tps6507x.h @@ -131,4 +131,15 @@ /* VDCDC MASK */ #define TPS6507X_DEFDCDCX_DCDC_MASK 0X3F +/** + * struct tps6507x_board - packages regulator and touchscreen init data + * @tps6507x_regulator_data: regulator initialization values + * + * Board data may be used to initialize regulator and touchscreen. + */ + +struct tps6507x_board { + struct regulator_init_data *tps6507x_pmic_init_data; +}; + #endif /* __LINUX_MFD_TPS6507X_H */ -- 1.6.0.4 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
