power: make most tps drivers and the twl4030 driver compatible with DM_I2C
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@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
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 @@
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..c3977fc 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 @@
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 +55,16 @@
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;
+ tps62362_dev = dev;
+ return 0;
+}
+#endif
diff --git a/drivers/power/pmic/pmic_tps65217.c b/drivers/power/pmic/pmic_tps65217.c
index 01c0ad1..c839e31 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 @@
* 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 @@
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 +134,17 @@
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;
+ tps65217_dev = dev;
+#endif
+ return 0;
+}
diff --git a/drivers/power/pmic/pmic_tps65218.c b/drivers/power/pmic/pmic_tps65218.c
index b50953b..7c95e5e 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 @@
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 @@
return 0;
}
+#ifndef CONFIG_DM_I2C
int power_tps65218_init(unsigned char bus)
{
static const char name[] = "TPS65218_PMIC";
@@ -173,3 +245,16 @@
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;
+ tps65218_dev = dev;
+ return 0;
+}
+#endif
diff --git a/drivers/power/pmic/pmic_tps65910.c b/drivers/power/pmic/pmic_tps65910.c
index f4d2aa1..4772de1 100644
--- a/drivers/power/pmic/pmic_tps65910.c
+++ b/drivers/power/pmic/pmic_tps65910.c
@@ -8,6 +8,47 @@
#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;
+ tps65910_dev = dev;
+#endif
+ return 0;
+}
+
/*
* tps65910_set_i2c_control() - Set the TPS65910 to be controlled via the I2C
* interface.
@@ -19,16 +60,14 @@
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 +88,29 @@
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 @@
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 @@
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