doc: riscv: debug UART for MAIX

[platform/kernel/u-boot.git] / drivers / power / palmas.c

diff --git a/drivers/power/palmas.c b/drivers/power/palmas.c
index c813b21..2584bea 100644 (file)
--- a/drivers/power/palmas.c
+++ b/drivers/power/palmas.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2012-2013
  * Texas Instruments, <www.ti.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 #include <config.h>
 #include <palmas.h>
@@ -42,25 +41,21 @@ int lp873x_mmc1_poweron_ldo(uint voltage)
 }
 #endif
 
-int palmas_mmc1_poweron_ldo(uint voltage)
+int palmas_mmc1_poweron_ldo(uint ldo_volt, uint ldo_ctrl, uint voltage)
 {
        u8 val = 0;
 
 #if defined(CONFIG_DRA7XX)
        int ret;
-       /*
-        * Currently valid for the dra7xx_evm board:
-        * Set TPS659038 LDO1 to 3.0 V
-        */
-       val = LDO_VOLT_3V0;
-       ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, val);
+
+       ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, ldo_volt, voltage);
        if (ret) {
                printf("tps65903x: could not set LDO1 voltage.\n");
                return ret;
        }
        /* TURN ON LDO1 */
        val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
-       ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val);
+       ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, ldo_ctrl, val);
        if (ret) {
                printf("tps65903x: could not turn on LDO1.\n");
                return ret;
@@ -180,3 +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