* [PATCH 0/4]-V2 TPS6507x MFD driver @ 2010-04-02 21:37 Todd Fischer 2010-04-02 21:37 ` [PATCH 1/4]-V2 Move TPS6507x register definition to header file Todd Fischer 0 siblings, 1 reply; 9+ messages in thread From: Todd Fischer @ 2010-04-02 21:37 UTC (permalink / raw) To: linux-kernel, davinci-linux-open-source, sameo, lrg, broonie, todd.fischer This is the second posting of the TPS6507x driver set. I have incorporated Mark Brown's feedback and retested. Patches 3 and 5 have been combined so there are only 4 patches in the series now. The TPS6507x family of Texas Instruments power management ICs (pmic) are multi-function chips that include voltage regulation and touch screen controller capabilities. This patch set adds a TPS6507x multi-function device driver and change the TPS6507x regulator driver to use the TPS6507x MFD driver instead of interacting with the chip directly. The changes are needed before a touch screen driver can be added. The patch set applies cleanly to the MFD repository: git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6.git If the MFD and voltage regulator maintainer would prefer I post patches for a different repository, please let me know. The TPS6507x touch screen input driver will be posted to linux-input@vger.kernel.org list. ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 1/4]-V2 Move TPS6507x register definition to header file. 2010-04-02 21:37 [PATCH 0/4]-V2 TPS6507x MFD driver Todd Fischer @ 2010-04-02 21:37 ` Todd Fischer 2010-04-02 21:37 ` [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data Todd Fischer 2010-04-05 13:46 ` [PATCH 1/4]-V2 Move TPS6507x register definition to header file Mark Brown 0 siblings, 2 replies; 9+ messages in thread From: Todd Fischer @ 2010-04-02 21:37 UTC (permalink / raw) To: linux-kernel, davinci-linux-open-source, sameo, lrg, broonie, todd.fischer Other sub-drivers for the TPS6507x chip will need to use register definition so move it out of the source file and into a header file. Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com> --- drivers/regulator/tps6507x-regulator.c | 60 +-------------- include/linux/mfd/tps6507x.h | 134 ++++++++++++++++++++++++++++++++ 2 files changed, 135 insertions(+), 59 deletions(-) create mode 100644 include/linux/mfd/tps6507x.h diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index c2a9539..91172e3 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -24,65 +24,7 @@ #include <linux/regulator/machine.h> #include <linux/i2c.h> #include <linux/delay.h> - -/* Register definitions */ -#define TPS6507X_REG_PPATH1 0X01 -#define TPS6507X_REG_INT 0X02 -#define TPS6507X_REG_CHGCONFIG0 0X03 -#define TPS6507X_REG_CHGCONFIG1 0X04 -#define TPS6507X_REG_CHGCONFIG2 0X05 -#define TPS6507X_REG_CHGCONFIG3 0X06 -#define TPS6507X_REG_REG_ADCONFIG 0X07 -#define TPS6507X_REG_TSCMODE 0X08 -#define TPS6507X_REG_ADRESULT_1 0X09 -#define TPS6507X_REG_ADRESULT_2 0X0A -#define TPS6507X_REG_PGOOD 0X0B -#define TPS6507X_REG_PGOODMASK 0X0C -#define TPS6507X_REG_CON_CTRL1 0X0D -#define TPS6507X_REG_CON_CTRL2 0X0E -#define TPS6507X_REG_CON_CTRL3 0X0F -#define TPS6507X_REG_DEFDCDC1 0X10 -#define TPS6507X_REG_DEFDCDC2_LOW 0X11 -#define TPS6507X_REG_DEFDCDC2_HIGH 0X12 -#define TPS6507X_REG_DEFDCDC3_LOW 0X13 -#define TPS6507X_REG_DEFDCDC3_HIGH 0X14 -#define TPS6507X_REG_DEFSLEW 0X15 -#define TPS6507X_REG_LDO_CTRL1 0X16 -#define TPS6507X_REG_DEFLDO2 0X17 -#define TPS6507X_REG_WLED_CTRL1 0X18 -#define TPS6507X_REG_WLED_CTRL2 0X19 - -/* CON_CTRL1 bitfields */ -#define TPS6507X_CON_CTRL1_DCDC1_ENABLE BIT(4) -#define TPS6507X_CON_CTRL1_DCDC2_ENABLE BIT(3) -#define TPS6507X_CON_CTRL1_DCDC3_ENABLE BIT(2) -#define TPS6507X_CON_CTRL1_LDO1_ENABLE BIT(1) -#define TPS6507X_CON_CTRL1_LDO2_ENABLE BIT(0) - -/* DEFDCDC1 bitfields */ -#define TPS6507X_DEFDCDC1_DCDC1_EXT_ADJ_EN BIT(7) -#define TPS6507X_DEFDCDC1_DCDC1_MASK 0X3F - -/* DEFDCDC2_LOW bitfields */ -#define TPS6507X_DEFDCDC2_LOW_DCDC2_MASK 0X3F - -/* DEFDCDC2_HIGH bitfields */ -#define TPS6507X_DEFDCDC2_HIGH_DCDC2_MASK 0X3F - -/* DEFDCDC3_LOW bitfields */ -#define TPS6507X_DEFDCDC3_LOW_DCDC3_MASK 0X3F - -/* DEFDCDC3_HIGH bitfields */ -#define TPS6507X_DEFDCDC3_HIGH_DCDC3_MASK 0X3F - -/* TPS6507X_REG_LDO_CTRL1 bitfields */ -#define TPS6507X_REG_LDO_CTRL1_LDO1_MASK 0X0F - -/* TPS6507X_REG_DEFLDO2 bitfields */ -#define TPS6507X_REG_DEFLDO2_LDO2_MASK 0X3F - -/* VDCDC MASK */ -#define TPS6507X_DEFDCDCX_DCDC_MASK 0X3F +#include <linux/mfd/tps6507x.h> /* DCDC's */ #define TPS6507X_DCDC_1 0 diff --git a/include/linux/mfd/tps6507x.h b/include/linux/mfd/tps6507x.h new file mode 100644 index 0000000..155bee1 --- /dev/null +++ b/include/linux/mfd/tps6507x.h @@ -0,0 +1,134 @@ +/* linux/mfd/tps6507x.h + * + * Functions to access TPS65070 power management chip. + * + * Copyright (c) 2009 RidgeRun (todd.fischer@ridgerun.com) + * + * + * For licencing details see kernel-base/COPYING + */ + +#ifndef __LINUX_MFD_TPS6507X_H +#define __LINUX_MFD_TPS6507X_H + +/* + * ---------------------------------------------------------------------------- + * Registers, all 8 bits + * ---------------------------------------------------------------------------- + */ + + +/* Register definitions */ +#define TPS6507X_REG_PPATH1 0X01 +#define TPS6507X_CHG_USB BIT(7) +#define TPS6507X_CHG_AC BIT(6) +#define TPS6507X_CHG_USB_PW_ENABLE BIT(5) +#define TPS6507X_CHG_AC_PW_ENABLE BIT(4) +#define TPS6507X_CHG_AC_CURRENT BIT(2) +#define TPS6507X_CHG_USB_CURRENT BIT(0) + +#define TPS6507X_REG_INT 0X02 +#define TPS6507X_REG_MASK_AC_USB BIT(7) +#define TPS6507X_REG_MASK_TSC BIT(6) +#define TPS6507X_REG_MASK_PB_IN BIT(5) +#define TPS6507X_REG_TSC_INT BIT(3) +#define TPS6507X_REG_PB_IN_INT BIT(2) +#define TPS6507X_REG_AC_USB_APPLIED BIT(1) +#define TPS6507X_REG_AC_USB_REMOVED BIT(0) + +#define TPS6507X_REG_CHGCONFIG0 0X03 + +#define TPS6507X_REG_CHGCONFIG1 0X04 +#define TPS6507X_CON_CTRL1_DCDC1_ENABLE BIT(4) +#define TPS6507X_CON_CTRL1_DCDC2_ENABLE BIT(3) +#define TPS6507X_CON_CTRL1_DCDC3_ENABLE BIT(2) +#define TPS6507X_CON_CTRL1_LDO1_ENABLE BIT(1) +#define TPS6507X_CON_CTRL1_LDO2_ENABLE BIT(0) + +#define TPS6507X_REG_CHGCONFIG2 0X05 + +#define TPS6507X_REG_CHGCONFIG3 0X06 + +#define TPS6507X_REG_ADCONFIG 0X07 +#define TPS6507X_ADCONFIG_AD_ENABLE BIT(7) +#define TPS6507X_ADCONFIG_START_CONVERSION BIT(6) +#define TPS6507X_ADCONFIG_CONVERSION_DONE BIT(5) +#define TPS6507X_ADCONFIG_VREF_ENABLE BIT(4) +#define TPS6507X_ADCONFIG_INPUT_AD_IN1 0 +#define TPS6507X_ADCONFIG_INPUT_AD_IN2 1 +#define TPS6507X_ADCONFIG_INPUT_AD_IN3 2 +#define TPS6507X_ADCONFIG_INPUT_AD_IN4 3 +#define TPS6507X_ADCONFIG_INPUT_TS_PIN 4 +#define TPS6507X_ADCONFIG_INPUT_BAT_CURRENT 5 +#define TPS6507X_ADCONFIG_INPUT_AC_VOLTAGE 6 +#define TPS6507X_ADCONFIG_INPUT_SYS_VOLTAGE 7 +#define TPS6507X_ADCONFIG_INPUT_CHARGER_VOLTAGE 8 +#define TPS6507X_ADCONFIG_INPUT_BAT_VOLTAGE 9 +#define TPS6507X_ADCONFIG_INPUT_THRESHOLD_VOLTAGE 10 +#define TPS6507X_ADCONFIG_INPUT_ISET1_VOLTAGE 11 +#define TPS6507X_ADCONFIG_INPUT_ISET2_VOLTAGE 12 +#define TPS6507X_ADCONFIG_INPUT_REAL_TSC 14 +#define TPS6507X_ADCONFIG_INPUT_TSC 15 + +#define TPS6507X_REG_TSCMODE 0X08 +#define TPS6507X_TSCMODE_X_POSITION 0 +#define TPS6507X_TSCMODE_Y_POSITION 1 +#define TPS6507X_TSCMODE_PRESSURE 2 +#define TPS6507X_TSCMODE_X_PLATE 3 +#define TPS6507X_TSCMODE_Y_PLATE 4 +#define TPS6507X_TSCMODE_STANDBY 5 +#define TPS6507X_TSCMODE_ADC_INPUT 6 +#define TPS6507X_TSCMODE_DISABLE 7 + +#define TPS6507X_REG_ADRESULT_1 0X09 + +#define TPS6507X_REG_ADRESULT_2 0X0A +#define TPS6507X_REG_ADRESULT_2_MASK (BIT(1) | BIT(0)) + +#define TPS6507X_REG_PGOOD 0X0B + +#define TPS6507X_REG_PGOODMASK 0X0C + +#define TPS6507X_REG_CON_CTRL1 0X0D +#define TPS6507X_CON_CTRL1_DCDC1_ENABLE BIT(4) +#define TPS6507X_CON_CTRL1_DCDC2_ENABLE BIT(3) +#define TPS6507X_CON_CTRL1_DCDC3_ENABLE BIT(2) +#define TPS6507X_CON_CTRL1_LDO1_ENABLE BIT(1) +#define TPS6507X_CON_CTRL1_LDO2_ENABLE BIT(0) + +#define TPS6507X_REG_CON_CTRL2 0X0E + +#define TPS6507X_REG_CON_CTRL3 0X0F + +#define TPS6507X_REG_DEFDCDC1 0X10 +#define TPS6507X_DEFDCDC1_DCDC1_EXT_ADJ_EN BIT(7) +#define TPS6507X_DEFDCDC1_DCDC1_MASK 0X3F + +#define TPS6507X_REG_DEFDCDC2_LOW 0X11 +#define TPS6507X_DEFDCDC2_LOW_DCDC2_MASK 0X3F + +#define TPS6507X_REG_DEFDCDC2_HIGH 0X12 +#define TPS6507X_DEFDCDC2_HIGH_DCDC2_MASK 0X3F + +#define TPS6507X_REG_DEFDCDC3_LOW 0X13 +#define TPS6507X_DEFDCDC3_LOW_DCDC3_MASK 0X3F + +#define TPS6507X_REG_DEFDCDC3_HIGH 0X14 +#define TPS6507X_DEFDCDC3_HIGH_DCDC3_MASK 0X3F + +#define TPS6507X_REG_DEFSLEW 0X15 + +#define TPS6507X_REG_LDO_CTRL1 0X16 +#define TPS6507X_REG_LDO_CTRL1_LDO1_MASK 0X0F + +#define TPS6507X_REG_DEFLDO2 0X17 +#define TPS6507X_REG_DEFLDO2_LDO2_MASK 0X3F + +#define TPS6507X_REG_WLED_CTRL1 0X18 + +#define TPS6507X_REG_WLED_CTRL2 0X19 + +/* VDCDC MASK */ +#define TPS6507X_DEFDCDCX_DCDC_MASK 0X3F + +#endif /* __LINUX_MFD_TPS6507X_H */ -- 1.6.0.4 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data. 2010-04-02 21:37 ` [PATCH 1/4]-V2 Move TPS6507x register definition to header file Todd Fischer @ 2010-04-02 21:37 ` Todd Fischer 2010-04-02 21:37 ` [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space Todd Fischer 2010-04-05 13:48 ` [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data Mark Brown 2010-04-05 13:46 ` [PATCH 1/4]-V2 Move TPS6507x register definition to header file Mark Brown 1 sibling, 2 replies; 9+ messages in thread From: Todd Fischer @ 2010-04-02 21:37 UTC (permalink / raw) To: linux-kernel, davinci-linux-open-source, sameo, lrg, broonie, todd.fischer 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 <todd.fischer@ridgerun.com> --- 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 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space. 2010-04-02 21:37 ` [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data Todd Fischer @ 2010-04-02 21:37 ` Todd Fischer 2010-04-02 21:37 ` [PATCH 4/4]-V2 Add MFD driver for TPS6507x family of multi-function chips and move TPS6507x regulator driver from being stand-alone to using the MFD driver Todd Fischer 2010-04-05 13:49 ` [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space Mark Brown 2010-04-05 13:48 ` [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data Mark Brown 1 sibling, 2 replies; 9+ messages in thread From: Todd Fischer @ 2010-04-02 21:37 UTC (permalink / raw) To: linux-kernel, davinci-linux-open-source, sameo, lrg, broonie, todd.fischer Move from using tps or tsp6507x to tps6057x_pmic in a consistent manner. Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com> --- drivers/regulator/tps6507x-regulator.c | 172 ++++++++++++++++---------------- 1 files changed, 87 insertions(+), 85 deletions(-) diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index becf652..86f2e05 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -103,7 +103,7 @@ struct tps_info { const u16 *table; }; -struct tps_pmic { +struct tps6507x_pmic { struct regulator_desc desc[TPS6507X_NUM_REGULATOR]; struct i2c_client *client; struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR]; @@ -111,23 +111,23 @@ struct tps_pmic { struct mutex io_lock; }; -static inline int tps_6507x_read(struct tps_pmic *tps, u8 reg) +static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg) { return i2c_smbus_read_byte_data(tps->client, reg); } -static inline int tps_6507x_write(struct tps_pmic *tps, u8 reg, u8 val) +static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val) { return i2c_smbus_write_byte_data(tps->client, reg, val); } -static int tps_6507x_set_bits(struct tps_pmic *tps, u8 reg, u8 mask) +static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) { int err, data; mutex_lock(&tps->io_lock); - data = tps_6507x_read(tps, reg); + data = tps6507x_pmic_read(tps, reg); if (data < 0) { dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); err = data; @@ -135,7 +135,7 @@ static int tps_6507x_set_bits(struct tps_pmic *tps, u8 reg, u8 mask) } data |= mask; - err = tps_6507x_write(tps, reg, data); + err = tps6507x_pmic_write(tps, reg, data); if (err) dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); @@ -144,13 +144,13 @@ out: return err; } -static int tps_6507x_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask) +static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) { int err, data; mutex_lock(&tps->io_lock); - data = tps_6507x_read(tps, reg); + data = tps6507x_pmic_read(tps, reg); if (data < 0) { dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); err = data; @@ -158,7 +158,7 @@ static int tps_6507x_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask) } data &= ~mask; - err = tps_6507x_write(tps, reg, data); + err = tps6507x_pmic_write(tps, reg, data); if (err) dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); @@ -167,13 +167,13 @@ out: return err; } -static int tps_6507x_reg_read(struct tps_pmic *tps, u8 reg) +static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg) { int data; mutex_lock(&tps->io_lock); - data = tps_6507x_read(tps, reg); + data = tps6507x_pmic_read(tps, reg); if (data < 0) dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); @@ -181,13 +181,13 @@ static int tps_6507x_reg_read(struct tps_pmic *tps, u8 reg) return data; } -static int tps_6507x_reg_write(struct tps_pmic *tps, u8 reg, u8 val) +static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val) { int err; mutex_lock(&tps->io_lock); - err = tps_6507x_write(tps, reg, val); + err = tps6507x_pmic_write(tps, reg, val); if (err < 0) dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); @@ -195,9 +195,9 @@ static int tps_6507x_reg_write(struct tps_pmic *tps, u8 reg, u8 val) return err; } -static int tps6507x_dcdc_is_enabled(struct regulator_dev *dev) +static int tps6507x_pmic_dcdc_is_enabled(struct regulator_dev *dev) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int data, dcdc = rdev_get_id(dev); u8 shift; @@ -205,7 +205,7 @@ static int tps6507x_dcdc_is_enabled(struct regulator_dev *dev) return -EINVAL; shift = TPS6507X_MAX_REG_ID - dcdc; - data = tps_6507x_reg_read(tps, TPS6507X_REG_CON_CTRL1); + data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1); if (data < 0) return data; @@ -213,9 +213,9 @@ static int tps6507x_dcdc_is_enabled(struct regulator_dev *dev) return (data & 1<<shift) ? 1 : 0; } -static int tps6507x_ldo_is_enabled(struct regulator_dev *dev) +static int tps6507x_pmic_ldo_is_enabled(struct regulator_dev *dev) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int data, ldo = rdev_get_id(dev); u8 shift; @@ -223,7 +223,7 @@ static int tps6507x_ldo_is_enabled(struct regulator_dev *dev) return -EINVAL; shift = TPS6507X_MAX_REG_ID - ldo; - data = tps_6507x_reg_read(tps, TPS6507X_REG_CON_CTRL1); + data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1); if (data < 0) return data; @@ -231,9 +231,9 @@ static int tps6507x_ldo_is_enabled(struct regulator_dev *dev) return (data & 1<<shift) ? 1 : 0; } -static int tps6507x_dcdc_enable(struct regulator_dev *dev) +static int tps6507x_pmic_dcdc_enable(struct regulator_dev *dev) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int dcdc = rdev_get_id(dev); u8 shift; @@ -241,12 +241,12 @@ static int tps6507x_dcdc_enable(struct regulator_dev *dev) return -EINVAL; shift = TPS6507X_MAX_REG_ID - dcdc; - return tps_6507x_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift); + return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift); } -static int tps6507x_dcdc_disable(struct regulator_dev *dev) +static int tps6507x_pmic_dcdc_disable(struct regulator_dev *dev) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int dcdc = rdev_get_id(dev); u8 shift; @@ -254,12 +254,13 @@ static int tps6507x_dcdc_disable(struct regulator_dev *dev) return -EINVAL; shift = TPS6507X_MAX_REG_ID - dcdc; - return tps_6507x_clear_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift); + return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1, + 1 << shift); } -static int tps6507x_ldo_enable(struct regulator_dev *dev) +static int tps6507x_pmic_ldo_enable(struct regulator_dev *dev) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int ldo = rdev_get_id(dev); u8 shift; @@ -267,12 +268,12 @@ static int tps6507x_ldo_enable(struct regulator_dev *dev) return -EINVAL; shift = TPS6507X_MAX_REG_ID - ldo; - return tps_6507x_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift); + return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift); } -static int tps6507x_ldo_disable(struct regulator_dev *dev) +static int tps6507x_pmic_ldo_disable(struct regulator_dev *dev) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int ldo = rdev_get_id(dev); u8 shift; @@ -280,12 +281,13 @@ static int tps6507x_ldo_disable(struct regulator_dev *dev) return -EINVAL; shift = TPS6507X_MAX_REG_ID - ldo; - return tps_6507x_clear_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift); + return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1, + 1 << shift); } -static int tps6507x_dcdc_get_voltage(struct regulator_dev *dev) +static int tps6507x_pmic_dcdc_get_voltage(struct regulator_dev *dev) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int data, dcdc = rdev_get_id(dev); u8 reg; @@ -303,7 +305,7 @@ static int tps6507x_dcdc_get_voltage(struct regulator_dev *dev) return -EINVAL; } - data = tps_6507x_reg_read(tps, reg); + data = tps6507x_pmic_reg_read(tps, reg); if (data < 0) return data; @@ -311,10 +313,10 @@ static int tps6507x_dcdc_get_voltage(struct regulator_dev *dev) return tps->info[dcdc]->table[data] * 1000; } -static int tps6507x_dcdc_set_voltage(struct regulator_dev *dev, +static int tps6507x_pmic_dcdc_set_voltage(struct regulator_dev *dev, int min_uV, int max_uV) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int data, vsel, dcdc = rdev_get_id(dev); u8 reg; @@ -352,19 +354,19 @@ static int tps6507x_dcdc_set_voltage(struct regulator_dev *dev, if (vsel == tps->info[dcdc]->table_len) return -EINVAL; - data = tps_6507x_reg_read(tps, reg); + data = tps6507x_pmic_reg_read(tps, reg); if (data < 0) return data; data &= ~TPS6507X_DEFDCDCX_DCDC_MASK; data |= vsel; - return tps_6507x_reg_write(tps, reg, data); + return tps6507x_pmic_reg_write(tps, reg, data); } -static int tps6507x_ldo_get_voltage(struct regulator_dev *dev) +static int tps6507x_pmic_ldo_get_voltage(struct regulator_dev *dev) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int data, ldo = rdev_get_id(dev); u8 reg, mask; @@ -378,7 +380,7 @@ static int tps6507x_ldo_get_voltage(struct regulator_dev *dev) TPS6507X_REG_DEFLDO2_LDO2_MASK); } - data = tps_6507x_reg_read(tps, reg); + data = tps6507x_pmic_reg_read(tps, reg); if (data < 0) return data; @@ -386,10 +388,10 @@ static int tps6507x_ldo_get_voltage(struct regulator_dev *dev) return tps->info[ldo]->table[data] * 1000; } -static int tps6507x_ldo_set_voltage(struct regulator_dev *dev, +static int tps6507x_pmic_ldo_set_voltage(struct regulator_dev *dev, int min_uV, int max_uV) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int data, vsel, ldo = rdev_get_id(dev); u8 reg, mask; @@ -420,20 +422,20 @@ static int tps6507x_ldo_set_voltage(struct regulator_dev *dev, if (vsel == tps->info[ldo]->table_len) return -EINVAL; - data = tps_6507x_reg_read(tps, reg); + data = tps6507x_pmic_reg_read(tps, reg); if (data < 0) return data; data &= ~mask; data |= vsel; - return tps_6507x_reg_write(tps, reg, data); + return tps6507x_pmic_reg_write(tps, reg, data); } -static int tps6507x_dcdc_list_voltage(struct regulator_dev *dev, +static int tps6507x_pmic_dcdc_list_voltage(struct regulator_dev *dev, unsigned selector) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int dcdc = rdev_get_id(dev); if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3) @@ -445,10 +447,10 @@ static int tps6507x_dcdc_list_voltage(struct regulator_dev *dev, return tps->info[dcdc]->table[selector] * 1000; } -static int tps6507x_ldo_list_voltage(struct regulator_dev *dev, +static int tps6507x_pmic_ldo_list_voltage(struct regulator_dev *dev, unsigned selector) { - struct tps_pmic *tps = rdev_get_drvdata(dev); + struct tps6507x_pmic *tps = rdev_get_drvdata(dev); int ldo = rdev_get_id(dev); if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2) @@ -461,33 +463,33 @@ static int tps6507x_ldo_list_voltage(struct regulator_dev *dev, } /* Operations permitted on VDCDCx */ -static struct regulator_ops tps6507x_dcdc_ops = { - .is_enabled = tps6507x_dcdc_is_enabled, - .enable = tps6507x_dcdc_enable, - .disable = tps6507x_dcdc_disable, - .get_voltage = tps6507x_dcdc_get_voltage, - .set_voltage = tps6507x_dcdc_set_voltage, - .list_voltage = tps6507x_dcdc_list_voltage, +static struct regulator_ops tps6507x_pmic_dcdc_ops = { + .is_enabled = tps6507x_pmic_dcdc_is_enabled, + .enable = tps6507x_pmic_dcdc_enable, + .disable = tps6507x_pmic_dcdc_disable, + .get_voltage = tps6507x_pmic_dcdc_get_voltage, + .set_voltage = tps6507x_pmic_dcdc_set_voltage, + .list_voltage = tps6507x_pmic_dcdc_list_voltage, }; /* Operations permitted on LDOx */ -static struct regulator_ops tps6507x_ldo_ops = { - .is_enabled = tps6507x_ldo_is_enabled, - .enable = tps6507x_ldo_enable, - .disable = tps6507x_ldo_disable, - .get_voltage = tps6507x_ldo_get_voltage, - .set_voltage = tps6507x_ldo_set_voltage, - .list_voltage = tps6507x_ldo_list_voltage, +static struct regulator_ops tps6507x_pmic_ldo_ops = { + .is_enabled = tps6507x_pmic_ldo_is_enabled, + .enable = tps6507x_pmic_ldo_enable, + .disable = tps6507x_pmic_ldo_disable, + .get_voltage = tps6507x_pmic_ldo_get_voltage, + .set_voltage = tps6507x_pmic_ldo_set_voltage, + .list_voltage = tps6507x_pmic_ldo_list_voltage, }; -static int __devinit tps_6507x_probe(struct i2c_client *client, +static int __devinit tps6507x_pmic_probe(struct i2c_client *client, const struct i2c_device_id *id) { static int desc_id; const struct tps_info *info = (void *)id->driver_data; struct regulator_init_data *init_data; struct regulator_dev *rdev; - struct tps_pmic *tps; + struct tps6507x_pmic *tps; struct tps6507x_board *tps_board; int i; int error; @@ -529,7 +531,7 @@ static int __devinit tps_6507x_probe(struct i2c_client *client, tps->desc[i].id = desc_id++; tps->desc[i].n_voltages = num_voltages[i]; tps->desc[i].ops = (i > TPS6507X_DCDC_3 ? - &tps6507x_ldo_ops : &tps6507x_dcdc_ops); + &tps6507x_pmic_ldo_ops : &tps6507x_pmic_dcdc_ops); tps->desc[i].type = REGULATOR_VOLTAGE; tps->desc[i].owner = THIS_MODULE; @@ -559,14 +561,14 @@ fail: } /** - * tps_6507x_remove - TPS6507x driver i2c remove handler + * tps6507x_remove - TPS6507x driver i2c remove handler * @client: i2c driver client device structure * * Unregister TPS driver as an i2c client device driver */ -static int __devexit tps_6507x_remove(struct i2c_client *client) +static int __devexit tps6507x_pmic_remove(struct i2c_client *client) { - struct tps_pmic *tps = i2c_get_clientdata(client); + struct tps6507x_pmic *tps = i2c_get_clientdata(client); int i; /* clear the client data in i2c */ @@ -580,7 +582,7 @@ static int __devexit tps_6507x_remove(struct i2c_client *client) return 0; } -static const struct tps_info tps6507x_regs[] = { +static const struct tps_info tps6507x_pmic_regs[] = { { .name = "VDCDC1", .min_uV = 725000, @@ -618,44 +620,44 @@ static const struct tps_info tps6507x_regs[] = { }, }; -static const struct i2c_device_id tps_6507x_id[] = { +static const struct i2c_device_id tps6507x_pmic_id[] = { {.name = "tps6507x", - .driver_data = (unsigned long) tps6507x_regs,}, + .driver_data = (unsigned long) tps6507x_pmic_regs,}, { }, }; -MODULE_DEVICE_TABLE(i2c, tps_6507x_id); +MODULE_DEVICE_TABLE(i2c, tps6507x_pmic_id); -static struct i2c_driver tps_6507x_i2c_driver = { +static struct i2c_driver tps6507x_i2c_driver = { .driver = { .name = "tps6507x", .owner = THIS_MODULE, }, - .probe = tps_6507x_probe, - .remove = __devexit_p(tps_6507x_remove), - .id_table = tps_6507x_id, + .probe = tps6507x_pmic_probe, + .remove = __devexit_p(tps6507x_pmic_remove), + .id_table = tps6507x_pmic_id, }; /** - * tps_6507x_init + * tps6507x_pmic_init * * Module init function */ -static int __init tps_6507x_init(void) +static int __init tps6507x_pmic_init(void) { - return i2c_add_driver(&tps_6507x_i2c_driver); + return i2c_add_driver(&tps6507x_i2c_driver); } -subsys_initcall(tps_6507x_init); +subsys_initcall(tps6507x_pmic_init); /** - * tps_6507x_cleanup + * tps6507x_pmic_cleanup * * Module exit function */ -static void __exit tps_6507x_cleanup(void) +static void __exit tps6507x_pmic_cleanup(void) { - i2c_del_driver(&tps_6507x_i2c_driver); + i2c_del_driver(&tps6507x_i2c_driver); } -module_exit(tps_6507x_cleanup); +module_exit(tps6507x_pmic_cleanup); MODULE_AUTHOR("Texas Instruments"); MODULE_DESCRIPTION("TPS6507x voltage regulator driver"); -- 1.6.0.4 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH 4/4]-V2 Add MFD driver for TPS6507x family of multi-function chips and move TPS6507x regulator driver from being stand-alone to using the MFD driver. 2010-04-02 21:37 ` [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space Todd Fischer @ 2010-04-02 21:37 ` Todd Fischer 2010-04-05 13:56 ` Mark Brown 2010-04-05 13:49 ` [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space Mark Brown 1 sibling, 1 reply; 9+ messages in thread From: Todd Fischer @ 2010-04-02 21:37 UTC (permalink / raw) To: linux-kernel, davinci-linux-open-source, sameo, lrg, broonie, todd.fischer Add MFD driver for TPS6507x family of multi-function chips. Move TPS6507x regulator driver from being stand-alone driver to using the MFD TPS6507x driver. Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com> --- drivers/mfd/Kconfig | 12 +++ drivers/mfd/Makefile | 3 +- drivers/mfd/tps6507x.c | 145 ++++++++++++++++++++++++++++++ drivers/regulator/tps6507x-regulator.c | 153 +++++++++++++++---------------- include/linux/mfd/tps6507x.h | 22 +++++ 5 files changed, 255 insertions(+), 80 deletions(-) create mode 100644 drivers/mfd/tps6507x.c diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 2a5a0b7..1e301ad 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -111,6 +111,18 @@ config TPS65010 This driver can also be built as a module. If so, the module will be called tps65010. +config TPS6507X + tristate "TPS6507x Power Management / Touch Screen chips" + select MFD_CORE + depends on I2C + help + If you say yes here you get support for the TPS6507x series of + Power Management / Touch Screen chips. These include voltage + regulators, lithium ion/polymer battery charging, touch screen + and other features that are often used in portable devices. + This driver can also be built as a module. If so, the module + will be called tps6507x. + config MENELAUS bool "Texas Instruments TWL92330/Menelaus PM chip" depends on I2C=y && ARCH_OMAP2 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 22715ad..2bebc95 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_MFD_WM8350_I2C) += wm8350-i2c.o obj-$(CONFIG_MFD_WM8994) += wm8994-core.o obj-$(CONFIG_TPS65010) += tps65010.o +obj-$(CONFIG_TPS6507X) += tps6507x.o obj-$(CONFIG_MENELAUS) += menelaus.o obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o @@ -62,4 +63,4 @@ obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o obj-$(CONFIG_AB4500_CORE) += ab4500-core.o obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o obj-$(CONFIG_PMIC_ADP5520) += adp5520.o -obj-$(CONFIG_LPC_SCH) += lpc_sch.o \ No newline at end of file +obj-$(CONFIG_LPC_SCH) += lpc_sch.o diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c new file mode 100644 index 0000000..edda9ff --- /dev/null +++ b/drivers/mfd/tps6507x.c @@ -0,0 +1,145 @@ +/* + * tps6507x.c -- TPS6507x chip family multi-function driver + * + * Copyright (c) 2010 RidgeRun (todd.fischer@ridgerun.com) + * + * Author: Todd Fischer + * todd.fischer@ridgerun.com + * + * Credits: + * + * Using code from wm831x-*.c, Wolfson Microelectronics PLC. + * + * For licencing details see kernel-base/COPYING + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/mfd/core.h> +#include <linux/mfd/tps6507x.h> + +static struct mfd_cell tps6507x_devs[] = { + { + .name = "tps6507x-pmic", + }, +}; + + +static int tps6507x_i2c_read_device(struct tps6507x_dev *tps6507x, char reg, + int bytes, void *dest) +{ + struct i2c_client *i2c = tps6507x->i2c_client; + int ret; + + ret = i2c_master_send(i2c, ®, 1); + if (ret < 0) + return ret; + + ret = i2c_master_recv(i2c, dest, bytes); + if (ret < 0) + return ret; + if (ret != bytes) + return -EIO; + return 0; +} + +static int tps6507x_i2c_write_device(struct tps6507x_dev *tps6507x, char reg, + int bytes, void *src) +{ + struct i2c_client *i2c = tps6507x->i2c_client; + /* we add 1 byte for device register */ + u8 msg[(TPS6507X_MAX_REGISTER << 1) + 1]; + int ret; + + if (bytes > ((TPS6507X_MAX_REGISTER << 1) + 1)) + return -EINVAL; + + msg[0] = reg; + memcpy(&msg[1], src, bytes); + + ret = i2c_master_send(i2c, msg, bytes + 1); + if (ret < 0) + return ret; + if (ret != bytes + 1) + return -EIO; + return 0; +} + +static int tps6507x_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct tps6507x_dev *tps6507x; + int ret = 0; + + tps6507x = kzalloc(sizeof(struct tps6507x_dev), GFP_KERNEL); + if (tps6507x == NULL) { + kfree(i2c); + return -ENOMEM; + } + + i2c_set_clientdata(i2c, tps6507x); + tps6507x->dev = &i2c->dev; + tps6507x->i2c_client = i2c; + tps6507x->read_dev = tps6507x_i2c_read_device; + tps6507x->write_dev = tps6507x_i2c_write_device; + + ret = mfd_add_devices(tps6507x->dev, -1, + tps6507x_devs, ARRAY_SIZE(tps6507x_devs), + NULL, 0); + + if (ret < 0) + goto err; + + return ret; + +err: + mfd_remove_devices(tps6507x->dev); + kfree(tps6507x); + return ret; +} + +static int tps6507x_i2c_remove(struct i2c_client *i2c) +{ + struct tps6507x_dev *tps6507x = i2c_get_clientdata(i2c); + + mfd_remove_devices(tps6507x->dev); + kfree(tps6507x); + + return 0; +} + +static const struct i2c_device_id tps6507x_i2c_id[] = { + { "tps6507x", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tps6507x_i2c_id); + + +static struct i2c_driver tps6507x_i2c_driver = { + .driver = { + .name = "tps6507x", + .owner = THIS_MODULE, + }, + .probe = tps6507x_i2c_probe, + .remove = tps6507x_i2c_remove, + .id_table = tps6507x_i2c_id, +}; + +static int __init tps6507x_i2c_init(void) +{ + return i2c_add_driver(&tps6507x_i2c_driver); +} +/* init early so consumer devices can complete system boot */ +subsys_initcall(tps6507x_i2c_init); + +static void __exit tps6507x_i2c_exit(void) +{ + i2c_del_driver(&tps6507x_i2c_driver); +} +module_exit(tps6507x_i2c_exit); + +MODULE_DESCRIPTION("TPS6507x chip family multi-function driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index 86f2e05..e4d7d2f 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -22,7 +22,6 @@ #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> -#include <linux/i2c.h> #include <linux/delay.h> #include <linux/mfd/tps6507x.h> @@ -103,22 +102,67 @@ struct tps_info { const u16 *table; }; +static const struct tps_info tps6507x_pmic_regs[] = { + { + .name = "VDCDC1", + .min_uV = 725000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), + .table = VDCDCx_VSEL_table, + }, + { + .name = "VDCDC2", + .min_uV = 725000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), + .table = VDCDCx_VSEL_table, + }, + { + .name = "VDCDC3", + .min_uV = 725000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), + .table = VDCDCx_VSEL_table, + }, + { + .name = "LDO1", + .min_uV = 1000000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(LDO1_VSEL_table), + .table = LDO1_VSEL_table, + }, + { + .name = "LDO2", + .min_uV = 725000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(LDO2_VSEL_table), + .table = LDO2_VSEL_table, + }, +}; + struct tps6507x_pmic { struct regulator_desc desc[TPS6507X_NUM_REGULATOR]; - struct i2c_client *client; + struct tps6507x_dev *mfd; struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR]; const struct tps_info *info[TPS6507X_NUM_REGULATOR]; struct mutex io_lock; }; - static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg) { - return i2c_smbus_read_byte_data(tps->client, reg); + u8 val; + int err; + + err = tps->mfd->read_dev(tps->mfd, reg, 1, &val); + + if (err) + return err; + + return val; } static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val) { - return i2c_smbus_write_byte_data(tps->client, reg, val); + return tps->mfd->write_dev(tps->mfd, reg, 1, &val); } static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) @@ -129,7 +173,7 @@ static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) data = tps6507x_pmic_read(tps, reg); if (data < 0) { - dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); err = data; goto out; } @@ -137,7 +181,7 @@ static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) data |= mask; err = tps6507x_pmic_write(tps, reg, data); if (err) - dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); out: mutex_unlock(&tps->io_lock); @@ -152,7 +196,7 @@ static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) data = tps6507x_pmic_read(tps, reg); if (data < 0) { - dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); err = data; goto out; } @@ -160,7 +204,7 @@ static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) data &= ~mask; err = tps6507x_pmic_write(tps, reg, data); if (err) - dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); out: mutex_unlock(&tps->io_lock); @@ -175,7 +219,7 @@ static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg) data = tps6507x_pmic_read(tps, reg); if (data < 0) - dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); mutex_unlock(&tps->io_lock); return data; @@ -189,7 +233,7 @@ static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val) err = tps6507x_pmic_write(tps, reg, val); if (err < 0) - dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); mutex_unlock(&tps->io_lock); return err; @@ -482,11 +526,12 @@ static struct regulator_ops tps6507x_pmic_ldo_ops = { .list_voltage = tps6507x_pmic_ldo_list_voltage, }; -static int __devinit tps6507x_pmic_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static __devinit +int tps6507x_pmic_probe(struct platform_device *pdev) { + struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent); static int desc_id; - const struct tps_info *info = (void *)id->driver_data; + const struct tps_info *info = &tps6507x_pmic_regs[0]; struct regulator_init_data *init_data; struct regulator_dev *rdev; struct tps6507x_pmic *tps; @@ -494,16 +539,12 @@ static int __devinit tps6507x_pmic_probe(struct i2c_client *client, int i; int error; - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_BYTE_DATA)) - return -EIO; - /** * tps_board points to pmic related constants * coming from the board-evm file. */ - tps_board = dev_get_platdata(&client->dev); + tps_board = dev_get_platdata(tps6507x_dev->dev); if (!tps_board) return -EINVAL; @@ -522,7 +563,7 @@ static int __devinit tps6507x_pmic_probe(struct i2c_client *client, mutex_init(&tps->io_lock); /* common for all regulators */ - tps->client = client; + tps->mfd = tps6507x_dev; for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) { /* Register the regulators */ @@ -536,10 +577,11 @@ static int __devinit tps6507x_pmic_probe(struct i2c_client *client, tps->desc[i].owner = THIS_MODULE; rdev = regulator_register(&tps->desc[i], - &client->dev, init_data, tps); + tps6507x_dev->dev, init_data, tps); if (IS_ERR(rdev)) { - dev_err(&client->dev, "failed to register %s\n", - id->name); + dev_err(tps6507x_dev->dev, + "failed to register %s regulator\n", + pdev->name); error = PTR_ERR(rdev); goto fail; } @@ -548,7 +590,7 @@ static int __devinit tps6507x_pmic_probe(struct i2c_client *client, tps->rdev[i] = rdev; } - i2c_set_clientdata(client, tps); + tps6507x_dev->pmic = tps; return 0; @@ -566,14 +608,12 @@ fail: * * Unregister TPS driver as an i2c client device driver */ -static int __devexit tps6507x_pmic_remove(struct i2c_client *client) +static int __devexit tps6507x_pmic_remove(struct platform_device *pdev) { - struct tps6507x_pmic *tps = i2c_get_clientdata(client); + struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev); + struct tps6507x_pmic *tps = tps6507x_dev->pmic; int i; - /* clear the client data in i2c */ - i2c_set_clientdata(client, NULL); - for (i = 0; i < TPS6507X_NUM_REGULATOR; i++) regulator_unregister(tps->rdev[i]); @@ -582,59 +622,13 @@ static int __devexit tps6507x_pmic_remove(struct i2c_client *client) return 0; } -static const struct tps_info tps6507x_pmic_regs[] = { - { - .name = "VDCDC1", - .min_uV = 725000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), - .table = VDCDCx_VSEL_table, - }, - { - .name = "VDCDC2", - .min_uV = 725000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), - .table = VDCDCx_VSEL_table, - }, - { - .name = "VDCDC3", - .min_uV = 725000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), - .table = VDCDCx_VSEL_table, - }, - { - .name = "LDO1", - .min_uV = 1000000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(LDO1_VSEL_table), - .table = LDO1_VSEL_table, - }, - { - .name = "LDO2", - .min_uV = 725000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(LDO2_VSEL_table), - .table = LDO2_VSEL_table, - }, -}; - -static const struct i2c_device_id tps6507x_pmic_id[] = { - {.name = "tps6507x", - .driver_data = (unsigned long) tps6507x_pmic_regs,}, - { }, -}; -MODULE_DEVICE_TABLE(i2c, tps6507x_pmic_id); - -static struct i2c_driver tps6507x_i2c_driver = { +static struct platform_driver tps6507x_pmic_driver = { .driver = { - .name = "tps6507x", + .name = "tps6507x-pmic", .owner = THIS_MODULE, }, .probe = tps6507x_pmic_probe, .remove = __devexit_p(tps6507x_pmic_remove), - .id_table = tps6507x_pmic_id, }; /** @@ -644,7 +638,7 @@ static struct i2c_driver tps6507x_i2c_driver = { */ static int __init tps6507x_pmic_init(void) { - return i2c_add_driver(&tps6507x_i2c_driver); + return platform_driver_register(&tps6507x_pmic_driver); } subsys_initcall(tps6507x_pmic_init); @@ -655,10 +649,11 @@ subsys_initcall(tps6507x_pmic_init); */ static void __exit tps6507x_pmic_cleanup(void) { - i2c_del_driver(&tps6507x_i2c_driver); + platform_driver_unregister(&tps6507x_pmic_driver); } module_exit(tps6507x_pmic_cleanup); MODULE_AUTHOR("Texas Instruments"); MODULE_DESCRIPTION("TPS6507x voltage regulator driver"); MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:tps6507x-pmic"); diff --git a/include/linux/mfd/tps6507x.h b/include/linux/mfd/tps6507x.h index fd73af5..9543cb7 100644 --- a/include/linux/mfd/tps6507x.h +++ b/include/linux/mfd/tps6507x.h @@ -131,6 +131,8 @@ /* VDCDC MASK */ #define TPS6507X_DEFDCDCX_DCDC_MASK 0X3F +#define TPS6507X_MAX_REGISTER 0X19 + /** * struct tps6507x_board - packages regulator and touchscreen init data * @tps6507x_regulator_data: regulator initialization values @@ -142,4 +144,24 @@ struct tps6507x_board { struct regulator_init_data *tps6507x_pmic_init_data; }; +/** + * struct tps6507x_dev - tps6507x sub-driver chip access routines + * @read_dev() - I2C register read function + * @write_dev() - I2C register write function + * + * Device data may be used to access the TPS6507x chip + */ + +struct tps6507x_dev { + struct device *dev; + struct i2c_client *i2c_client; + int (*read_dev)(struct tps6507x_dev *tps6507x, char reg, int size, + void *dest); + int (*write_dev)(struct tps6507x_dev *tps6507x, char reg, int size, + void *src); + + /* Client devices */ + struct tps6507x_pmic *pmic; +}; + #endif /* __LINUX_MFD_TPS6507X_H */ -- 1.6.0.4 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH 4/4]-V2 Add MFD driver for TPS6507x family of multi-function chips and move TPS6507x regulator driver from being stand-alone to using the MFD driver. 2010-04-02 21:37 ` [PATCH 4/4]-V2 Add MFD driver for TPS6507x family of multi-function chips and move TPS6507x regulator driver from being stand-alone to using the MFD driver Todd Fischer @ 2010-04-05 13:56 ` Mark Brown 0 siblings, 0 replies; 9+ messages in thread From: Mark Brown @ 2010-04-05 13:56 UTC (permalink / raw) To: Todd Fischer; +Cc: linux-kernel, davinci-linux-open-source, sameo, lrg On Fri, Apr 02, 2010 at 03:37:33PM -0600, Todd Fischer wrote: > Add MFD driver for TPS6507x family of multi-function chips. Move TPS6507x > regulator driver from being stand-alone driver to using the MFD TPS6507x driver. > > Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com> One issue... > +static int tps6507x_i2c_read_device(struct tps6507x_dev *tps6507x, char reg, > + int bytes, void *dest) > +{ > + struct i2c_client *i2c = tps6507x->i2c_client; > + int ret; > + > + ret = i2c_master_send(i2c, ®, 1); > + if (ret < 0) > + return ret; > + > + ret = i2c_master_recv(i2c, dest, bytes); > + if (ret < 0) > + return ret; > + if (ret != bytes) > + return -EIO; > + return 0; > +} Your register I/O functions don't have anything protecting them against concurrent access. This isn't really an issue for the writes by themselves since they do a single transaction on the I2C bus so the I2C layer concurrency protection ought to be enough but for reads you need to send the register address first then read back the data, opening up an issue. A simple mutex in the read and write functions ought to cover this. ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space. 2010-04-02 21:37 ` [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space Todd Fischer 2010-04-02 21:37 ` [PATCH 4/4]-V2 Add MFD driver for TPS6507x family of multi-function chips and move TPS6507x regulator driver from being stand-alone to using the MFD driver Todd Fischer @ 2010-04-05 13:49 ` Mark Brown 1 sibling, 0 replies; 9+ messages in thread From: Mark Brown @ 2010-04-05 13:49 UTC (permalink / raw) To: Todd Fischer; +Cc: linux-kernel, davinci-linux-open-source, sameo, lrg On Fri, Apr 02, 2010 at 03:37:32PM -0600, Todd Fischer wrote: > Move from using tps or tsp6507x to tps6057x_pmic in a consistent manner. > > Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com> Acked-by: Mark Brown <broonie@opensource.wolfsonicro.com> ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data. 2010-04-02 21:37 ` [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data Todd Fischer 2010-04-02 21:37 ` [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space Todd Fischer @ 2010-04-05 13:48 ` Mark Brown 1 sibling, 0 replies; 9+ messages in thread From: Mark Brown @ 2010-04-05 13:48 UTC (permalink / raw) To: Todd Fischer; +Cc: linux-kernel, davinci-linux-open-source, sameo, lrg On Fri, Apr 02, 2010 at 03:37:31PM -0600, Todd Fischer wrote: > 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 <todd.fischer@ridgerun.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/4]-V2 Move TPS6507x register definition to header file. 2010-04-02 21:37 ` [PATCH 1/4]-V2 Move TPS6507x register definition to header file Todd Fischer 2010-04-02 21:37 ` [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data Todd Fischer @ 2010-04-05 13:46 ` Mark Brown 1 sibling, 0 replies; 9+ messages in thread From: Mark Brown @ 2010-04-05 13:46 UTC (permalink / raw) To: Todd Fischer; +Cc: linux-kernel, davinci-linux-open-source, sameo, lrg On Fri, Apr 02, 2010 at 03:37:30PM -0600, Todd Fischer wrote: > Other sub-drivers for the TPS6507x chip will need to use register > definition so move it out of the source file and into a header file. > > Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2010-04-05 13:57 UTC | newest] Thread overview: 9+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2010-04-02 21:37 [PATCH 0/4]-V2 TPS6507x MFD driver Todd Fischer 2010-04-02 21:37 ` [PATCH 1/4]-V2 Move TPS6507x register definition to header file Todd Fischer 2010-04-02 21:37 ` [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data Todd Fischer 2010-04-02 21:37 ` [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space Todd Fischer 2010-04-02 21:37 ` [PATCH 4/4]-V2 Add MFD driver for TPS6507x family of multi-function chips and move TPS6507x regulator driver from being stand-alone to using the MFD driver Todd Fischer 2010-04-05 13:56 ` Mark Brown 2010-04-05 13:49 ` [PATCH 3/4]-V2 Cleaned up name space so each MFD sub-driver uses a different name space Mark Brown 2010-04-05 13:48 ` [PATCH 2/4]-V2 Make room for other tps6507x drivers to have board specific initialization data Mark Brown 2010-04-05 13:46 ` [PATCH 1/4]-V2 Move TPS6507x register definition to header file Mark Brown
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