[U-Boot] [PATCH v2 10/19] power: make most tps drivers and the twl4030 driver compatible with DM_I2C
Jean-Jacques Hiblot
jjhiblot at ti.com
Fri Oct 5 16:45:25 UTC 2018
Those driver are not DM drivers per se (not using the PMIC/regulator
framework) and are using the legacy I2C API. Make them compatible with
the DM_I2C API.
This impacts the following drivers:
- palmas (used by am57xx/dra7xx evms)
- tps65218 (used by am43xx evms)
- tps65217 and tps65910 (used by am335x evms and am335x boneblack vboot)
- twl4030 (used by omap3_logicpd)
- tps65217 (used by brppt1)
- twl6030
Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
---
Changes in v2:
- Also add DM_I2C support to the twl6030 driver
drivers/power/palmas.c | 39 +++++++++++++++++
drivers/power/pmic/pmic_tps62362.c | 27 ++++++++++++
drivers/power/pmic/pmic_tps65217.c | 47 +++++++++++++++++++-
drivers/power/pmic/pmic_tps65218.c | 88 ++++++++++++++++++++++++++++++++++++++
drivers/power/pmic/pmic_tps65910.c | 60 ++++++++++++++++++++++----
drivers/power/twl4030.c | 39 +++++++++++++++++
drivers/power/twl6030.c | 39 +++++++++++++++++
include/palmas.h | 5 +++
include/power/tps65217.h | 2 +
include/power/tps65910.h | 1 +
include/twl4030.h | 6 ++-
include/twl6030.h | 5 +++
12 files changed, 347 insertions(+), 11 deletions(-)
diff --git a/drivers/power/palmas.c b/drivers/power/palmas.c
index 6d5abba..2584bea 100644
--- a/drivers/power/palmas.c
+++ b/drivers/power/palmas.c
@@ -175,3 +175,42 @@ int twl603x_enable_bb_charge(u8 bb_fields)
val, err);
return err;
}
+
+#ifdef CONFIG_DM_I2C
+int palmas_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+ if (ret) {
+ pr_err("unable to get I2C bus. ret %d\n", ret);
+ return ret;
+ }
+ ret = dm_i2c_reg_write(dev, reg, val);
+ if (ret) {
+ pr_err("writing to palmas failed. ret %d\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
+int palmas_i2c_read_u8(u8 chip_no, u8 reg, u8 *valp)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+ if (ret) {
+ pr_err("unable to get I2C bus. ret %d\n", ret);
+ return ret;
+ }
+ ret = dm_i2c_reg_read(dev, reg);
+ if (ret < 0) {
+ pr_err("reading from palmas failed. ret %d\n", ret);
+ return ret;
+ }
+ *valp = (u8)ret;
+ return 0;
+}
+#endif
diff --git a/drivers/power/pmic/pmic_tps62362.c b/drivers/power/pmic/pmic_tps62362.c
index f2987de..d2fd955 100644
--- a/drivers/power/pmic/pmic_tps62362.c
+++ b/drivers/power/pmic/pmic_tps62362.c
@@ -10,6 +10,10 @@
#include <power/pmic.h>
#include <power/tps62362.h>
+#ifdef CONFIG_DM_I2C
+struct udevice *tps62362_dev __attribute__((section(".data"))) = NULL;
+#endif
+
/**
* tps62362_voltage_update() - Function to change a voltage level, as this
* is a multi-step process.
@@ -22,9 +26,16 @@ int tps62362_voltage_update(unsigned char reg, unsigned char volt_sel)
if (reg > TPS62362_NUM_REGS)
return 1;
+#ifndef CONFIG_DM_I2C
return i2c_write(TPS62362_I2C_ADDR, reg, 1, &volt_sel, 1);
+#else
+ if (!tps62362_dev)
+ return -ENODEV;
+ return dm_i2c_reg_write(tps62362_dev, reg, volt_sel);
+#endif
}
+#ifndef CONFIG_DM_I2C
int power_tps62362_init(unsigned char bus)
{
static const char name[] = "TPS62362";
@@ -44,3 +55,19 @@ int power_tps62362_init(unsigned char bus)
return 0;
}
+#else
+int power_tps62362_init(unsigned char bus)
+{
+ struct udevice *dev = NULL;
+ int rc;
+
+ rc = i2c_get_chip_for_busnum(bus, TPS62362_I2C_ADDR, 1, &dev);
+ if (rc)
+ return rc;
+ rc = dm_i2c_probe_device(dev);
+ if (rc)
+ return rc;
+ tps62362_dev = dev;
+ return 0;
+}
+#endif
diff --git a/drivers/power/pmic/pmic_tps65217.c b/drivers/power/pmic/pmic_tps65217.c
index 01c0ad1..773eb74 100644
--- a/drivers/power/pmic/pmic_tps65217.c
+++ b/drivers/power/pmic/pmic_tps65217.c
@@ -8,6 +8,8 @@
#include <i2c.h>
#include <power/tps65217.h>
+struct udevice *tps65217_dev __attribute__((section(".data"))) = NULL;
+
/**
* tps65217_reg_read() - Generic function that can read a TPS65217 register
* @src_reg: Source register address
@@ -16,7 +18,11 @@
*/
int tps65217_reg_read(uchar src_reg, uchar *src_val)
{
+#ifndef CONFIG_DM_I2C
return i2c_read(TPS65217_CHIP_PM, src_reg, 1, src_val, 1);
+#else
+ return dm_i2c_read(tps65217_dev, src_reg, src_val, 1);
+#endif
}
/**
@@ -46,9 +52,14 @@ int tps65217_reg_write(uchar prot_level, uchar dest_reg, uchar dest_val,
* mask
*/
if (mask != TPS65217_MASK_ALL_BITS) {
+#ifndef CONFIG_DM_I2C
ret = i2c_read(TPS65217_CHIP_PM, dest_reg, 1, &read_val, 1);
+#else
+ ret = dm_i2c_read(tps65217_dev, dest_reg, &read_val, 1);
+#endif
if (ret)
return ret;
+
read_val &= (~mask);
read_val |= (dest_val & mask);
dest_val = read_val;
@@ -56,23 +67,40 @@ int tps65217_reg_write(uchar prot_level, uchar dest_reg, uchar dest_val,
if (prot_level > 0) {
xor_reg = dest_reg ^ TPS65217_PASSWORD_UNLOCK;
+#ifndef CONFIG_DM_I2C
ret = i2c_write(TPS65217_CHIP_PM, TPS65217_PASSWORD, 1,
&xor_reg, 1);
+#else
+ ret = dm_i2c_write(tps65217_dev, TPS65217_PASSWORD,
+ &xor_reg, 1);
+#endif
if (ret)
return ret;
}
-
+#ifndef CONFIG_DM_I2C
ret = i2c_write(TPS65217_CHIP_PM, dest_reg, 1, &dest_val, 1);
+#else
+ ret = dm_i2c_write(tps65217_dev, dest_reg, &dest_val, 1);
+#endif
if (ret)
return ret;
if (prot_level == TPS65217_PROT_LEVEL_2) {
+#ifndef CONFIG_DM_I2C
ret = i2c_write(TPS65217_CHIP_PM, TPS65217_PASSWORD, 1,
&xor_reg, 1);
+#else
+ ret = dm_i2c_write(tps65217_dev, TPS65217_PASSWORD,
+ &xor_reg, 1);
+#endif
if (ret)
return ret;
+#ifndef CONFIG_DM_I2C
ret = i2c_write(TPS65217_CHIP_PM, dest_reg, 1, &dest_val, 1);
+#else
+ ret = dm_i2c_write(tps65217_dev, dest_reg, &dest_val, 1);
+#endif
if (ret)
return ret;
}
@@ -106,3 +134,20 @@ int tps65217_voltage_update(uchar dc_cntrl_reg, uchar volt_sel)
return 0;
}
+
+int power_tps65217_init(unsigned char bus)
+{
+#ifdef CONFIG_DM_I2C
+ struct udevice *dev = NULL;
+ int rc;
+
+ rc = i2c_get_chip_for_busnum(bus, TPS65217_CHIP_PM, 1, &dev);
+ if (rc)
+ return rc;
+ rc = dm_i2c_probe_device(dev);
+ if (rc)
+ return rc;
+ tps65217_dev = dev;
+#endif
+ return 0;
+}
diff --git a/drivers/power/pmic/pmic_tps65218.c b/drivers/power/pmic/pmic_tps65218.c
index b50953b..89fe50f 100644
--- a/drivers/power/pmic/pmic_tps65218.c
+++ b/drivers/power/pmic/pmic_tps65218.c
@@ -10,6 +10,7 @@
#include <power/pmic.h>
#include <power/tps65218.h>
+#ifndef CONFIG_DM_I2C
int tps65218_reg_read(uchar dest_reg, uchar *dest_val)
{
uchar read_val;
@@ -84,6 +85,76 @@ int tps65218_reg_write(uchar prot_level, uchar dest_reg, uchar dest_val,
return 0;
}
+#else
+struct udevice *tps65218_dev __attribute__((section(".data"))) = NULL;
+
+int tps65218_reg_read(uchar dest_reg, uchar *dest_val)
+{
+ uchar read_val;
+ int ret;
+
+ if (!tps65218_dev)
+ return -ENODEV;
+
+ ret = dm_i2c_read(tps65218_dev, dest_reg, &read_val, 1);
+ if (ret)
+ return ret;
+
+ *dest_val = read_val;
+
+ return 0;
+}
+
+int tps65218_reg_write(uchar prot_level, uchar dest_reg, uchar dest_val,
+ uchar mask)
+{
+ uchar read_val;
+ uchar xor_reg;
+ int ret;
+
+ if (!tps65218_dev)
+ return -ENODEV;
+
+ /*
+ * If we are affecting only a bit field, read dest_reg and apply the
+ * mask
+ */
+ if (mask != TPS65218_MASK_ALL_BITS) {
+ ret = dm_i2c_read(tps65218_dev, dest_reg, &read_val, 1);
+ if (ret)
+ return ret;
+
+ read_val &= (~mask);
+ read_val |= (dest_val & mask);
+ dest_val = read_val;
+ }
+
+ if (prot_level > 0) {
+ xor_reg = dest_reg ^ TPS65218_PASSWORD_UNLOCK;
+ ret = dm_i2c_write(tps65218_dev, TPS65218_PASSWORD, &xor_reg,
+ 1);
+ if (ret)
+ return ret;
+ }
+
+ ret = dm_i2c_write(tps65218_dev, dest_reg, &dest_val, 1);
+ if (ret)
+ return ret;
+
+ if (prot_level == TPS65218_PROT_LEVEL_2) {
+ ret = dm_i2c_write(tps65218_dev, TPS65218_PASSWORD, &xor_reg,
+ 1);
+ if (ret)
+ return ret;
+
+ ret = dm_i2c_write(tps65218_dev, dest_reg, &dest_val, 1);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+#endif
/**
* tps65218_voltage_update() - Function to change a voltage level, as this
@@ -154,6 +225,7 @@ int tps65218_lock_fseal(void)
return 0;
}
+#ifndef CONFIG_DM_I2C
int power_tps65218_init(unsigned char bus)
{
static const char name[] = "TPS65218_PMIC";
@@ -173,3 +245,19 @@ int power_tps65218_init(unsigned char bus)
return 0;
}
+#else
+int power_tps65218_init(unsigned char bus)
+{
+ struct udevice *dev = NULL;
+ int rc;
+
+ rc = i2c_get_chip_for_busnum(bus, TPS65218_CHIP_PM, 1, &dev);
+ if (rc)
+ return rc;
+ rc = dm_i2c_probe_device(dev);
+ if (rc)
+ return rc;
+ tps65218_dev = dev;
+ return 0;
+}
+#endif
diff --git a/drivers/power/pmic/pmic_tps65910.c b/drivers/power/pmic/pmic_tps65910.c
index f4d2aa1..a062779 100644
--- a/drivers/power/pmic/pmic_tps65910.c
+++ b/drivers/power/pmic/pmic_tps65910.c
@@ -8,6 +8,50 @@
#include <i2c.h>
#include <power/tps65910.h>
+struct udevice *tps65910_dev __attribute__((section(".data"))) = NULL;
+
+static inline int tps65910_read_reg(int addr, uchar *buf)
+{
+#ifndef CONFIG_DM_I2C
+ return i2c_read(TPS65910_CTRL_I2C_ADDR, addr, 1, buf, 1);
+#else
+ int rc;
+
+ rc = dm_i2c_reg_read(tps65910_dev, addr);
+ if (rc < 0)
+ return rc;
+ *buf = (uchar)rc;
+ return 0;
+#endif
+}
+
+static inline int tps65910_write_reg(int addr, uchar *buf)
+{
+#ifndef CONFIG_DM_I2C
+ return i2c_write(TPS65910_CTRL_I2C_ADDR, addr, 1, buf, 1);
+#else
+ return dm_i2c_reg_write(tps65910_dev, addr, *buf);
+#endif
+}
+
+int power_tps65910_init(unsigned char bus)
+{
+#ifdef CONFIG_DM_I2C
+ struct udevice *dev = NULL;
+ int rc;
+
+ rc = i2c_get_chip_for_busnum(bus, TPS65910_CTRL_I2C_ADDR, 1, &dev);
+
+ if (rc)
+ return rc;
+ rc = dm_i2c_probe_device(dev);
+ if (rc)
+ return rc;
+ tps65910_dev = dev;
+#endif
+ return 0;
+}
+
/*
* tps65910_set_i2c_control() - Set the TPS65910 to be controlled via the I2C
* interface.
@@ -19,16 +63,14 @@ int tps65910_set_i2c_control(void)
uchar buf;
/* VDD1/2 voltage selection register access by control i/f */
- ret = i2c_read(TPS65910_CTRL_I2C_ADDR, TPS65910_DEVCTRL_REG, 1,
- &buf, 1);
+ ret = tps65910_read_reg(TPS65910_DEVCTRL_REG, &buf);
if (ret)
return ret;
buf |= TPS65910_DEVCTRL_REG_SR_CTL_I2C_SEL_CTL_I2C;
- return i2c_write(TPS65910_CTRL_I2C_ADDR, TPS65910_DEVCTRL_REG, 1,
- &buf, 1);
+ return tps65910_write_reg(TPS65910_DEVCTRL_REG, &buf);
}
/*
@@ -49,29 +91,29 @@ int tps65910_voltage_update(unsigned int module, unsigned char vddx_op_vol_sel)
reg_offset = TPS65910_VDD2_OP_REG;
/* Select VDDx OP */
- ret = i2c_read(TPS65910_CTRL_I2C_ADDR, reg_offset, 1, &buf, 1);
+ ret = tps65910_read_reg(reg_offset, &buf);
if (ret)
return ret;
buf &= ~TPS65910_OP_REG_CMD_MASK;
- ret = i2c_write(TPS65910_CTRL_I2C_ADDR, reg_offset, 1, &buf, 1);
+ ret = tps65910_write_reg(reg_offset, &buf);
if (ret)
return ret;
/* Configure VDDx OP Voltage */
- ret = i2c_read(TPS65910_CTRL_I2C_ADDR, reg_offset, 1, &buf, 1);
+ ret = tps65910_read_reg(reg_offset, &buf);
if (ret)
return ret;
buf &= ~TPS65910_OP_REG_SEL_MASK;
buf |= vddx_op_vol_sel;
- ret = i2c_write(TPS65910_CTRL_I2C_ADDR, reg_offset, 1, &buf, 1);
+ ret = tps65910_write_reg(reg_offset, &buf);
if (ret)
return ret;
- ret = i2c_read(TPS65910_CTRL_I2C_ADDR, reg_offset, 1, &buf, 1);
+ ret = tps65910_read_reg(reg_offset, &buf);
if (ret)
return ret;
diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c
index 5246001..42c9001 100644
--- a/drivers/power/twl4030.c
+++ b/drivers/power/twl4030.c
@@ -179,3 +179,42 @@ int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
#endif
+
+#ifdef CONFIG_DM_I2C
+int twl4030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+ if (ret) {
+ pr_err("unable to get I2C bus. ret %d\n", ret);
+ return ret;
+ }
+ ret = dm_i2c_reg_write(dev, reg, val);
+ if (ret) {
+ pr_err("writing to twl4030 failed. ret %d\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
+int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *valp)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+ if (ret) {
+ pr_err("unable to get I2C bus. ret %d\n", ret);
+ return ret;
+ }
+ ret = dm_i2c_reg_read(dev, reg);
+ if (ret < 0) {
+ pr_err("reading from twl4030 failed. ret %d\n", ret);
+ return ret;
+ }
+ *valp = (u8)ret;
+ return 0;
+}
+#endif
diff --git a/drivers/power/twl6030.c b/drivers/power/twl6030.c
index e0cbda1..103960d 100644
--- a/drivers/power/twl6030.c
+++ b/drivers/power/twl6030.c
@@ -268,3 +268,42 @@ void twl6030_usb_device_settings()
value &= ~TWL6030_MISC2_VUSB_IN_PMID;
twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_MISC2, value);
}
+
+#ifdef CONFIG_DM_I2C
+int twl6030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+ if (ret) {
+ pr_err("unable to get I2C bus. ret %d\n", ret);
+ return ret;
+ }
+ ret = dm_i2c_reg_write(dev, reg, val);
+ if (ret) {
+ pr_err("writing to twl6030 failed. ret %d\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
+int twl6030_i2c_read_u8(u8 chip_no, u8 reg, u8 *valp)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+ if (ret) {
+ pr_err("unable to get I2C bus. ret %d\n", ret);
+ return ret;
+ }
+ ret = dm_i2c_reg_read(dev, reg);
+ if (ret < 0) {
+ pr_err("reading from twl6030 failed. ret %d\n", ret);
+ return ret;
+ }
+ *valp = (u8)ret;
+ return 0;
+}
+#endif
diff --git a/include/palmas.h b/include/palmas.h
index 229de53..20c7e48 100644
--- a/include/palmas.h
+++ b/include/palmas.h
@@ -117,6 +117,7 @@
#define BB_VSEL_VBAT (3 << 1)
#define BB_CHRG_EN (1 << 0)
+#ifndef CONFIG_DM_I2C
/*
* Functions to read and write from TPS659038/TWL6035/TWL6037
* or other Palmas family of TI PMICs
@@ -130,6 +131,10 @@ static inline int palmas_i2c_read_u8(u8 chip_no, u8 reg, u8 *val)
{
return i2c_read(chip_no, reg, 1, val, 1);
}
+#else
+int palmas_i2c_write_u8(u8 chip_no, u8 reg, u8 val);
+int palmas_i2c_read_u8(u8 chip_no, u8 reg, u8 *val);
+#endif
void palmas_init_settings(void);
int palmas_mmc1_poweron_ldo(uint ldo_volt, uint ldo_ctrl, uint voltage);
diff --git a/include/power/tps65217.h b/include/power/tps65217.h
index 00fbab8..669a94a 100644
--- a/include/power/tps65217.h
+++ b/include/power/tps65217.h
@@ -80,6 +80,8 @@ enum {
#define TPS65217_PWR_SRC_USB_BITMASK 0x4
#define TPS65217_PWR_SRC_AC_BITMASK 0x8
+int power_tps65217_init(unsigned char bus);
+
int tps65217_reg_read(uchar src_reg, uchar *src_val);
int tps65217_reg_write(uchar prot_level, uchar dest_reg, uchar dest_val,
uchar mask);
diff --git a/include/power/tps65910.h b/include/power/tps65910.h
index 48e0b2c..21b2a21 100644
--- a/include/power/tps65910.h
+++ b/include/power/tps65910.h
@@ -72,6 +72,7 @@ enum {
#define TPS65910_DEVCTRL_REG_SR_CTL_I2C_SEL_SR_I2C (0x0 << 4)
#define TPS65910_DEVCTRL_REG_SR_CTL_I2C_SEL_CTL_I2C (0x1 << 4)
+int power_tps65910_init(unsigned char bus);
int tps65910_set_i2c_control(void);
int tps65910_voltage_update(unsigned int module, unsigned char vddx_op_vol_sel);
#endif /* __POWER_TPS65910_H__ */
diff --git a/include/twl4030.h b/include/twl4030.h
index 46a9306..c27ad61 100644
--- a/include/twl4030.h
+++ b/include/twl4030.h
@@ -648,6 +648,7 @@
* examples are TWL4030_PM_RECEIVER_VMMC1_DEV_GRP and
* TWL4030_LED_LEDEN.
*/
+#ifndef CONFIG_DM_I2C
static inline int twl4030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
{
return i2c_write(chip_no, reg, 1, &val, 1);
@@ -657,7 +658,10 @@ static inline int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val)
{
return i2c_read(chip_no, reg, 1, val, 1);
}
-
+#else
+int twl4030_i2c_write_u8(u8 chip_no, u8 reg, u8 val);
+int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val);
+#endif
/*
* Power
*/
diff --git a/include/twl6030.h b/include/twl6030.h
index 6685343..41f17de 100644
--- a/include/twl6030.h
+++ b/include/twl6030.h
@@ -186,6 +186,7 @@ struct twl6030_data{
};
/* Functions to read and write from TWL6030 */
+#ifndef CONFIG_DM_I2C
static inline int twl6030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
{
return i2c_write(chip_no, reg, 1, &val, 1);
@@ -195,6 +196,10 @@ static inline int twl6030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val)
{
return i2c_read(chip_no, reg, 1, val, 1);
}
+#else
+int twl6030_i2c_write_u8(u8 chip_no, u8 reg, u8 val);
+int twl6030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val);
+#endif
/*
* Power
--
2.7.4
More information about the U-Boot
mailing list