Merge branch 'master' of git://git.denx.de/u-boot-mmc

[platform/kernel/u-boot.git] / arch / arm / cpu / tegra20-common / pmu.c

diff --git a/arch/arm/cpu/tegra20-common/pmu.c b/arch/arm/cpu/tegra20-common/pmu.c
index c595f70..36a76a2 100644 (file)
--- a/arch/arm/cpu/tegra20-common/pmu.c
+++ b/arch/arm/cpu/tegra20-common/pmu.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <i2c.h>
 #include <tps6586x.h>
 #include <asm/io.h>
 #include <asm/arch/tegra.h>
@@ -23,9 +24,13 @@
 #define VDD_TRANSITION_STEP    0x06    /* 150mv */
 #define VDD_TRANSITION_RATE    0x06    /* 3.52mv/us */
 
+#define PMI_I2C_ADDRESS        0x34    /* chip requires this address */
+
 int pmu_set_nominal(void)
 {
-       int core, cpu, bus;
+       struct udevice *bus, *dev;
+       int core, cpu;
+       int ret;
 
        /* by default, the table has been filled with T25 settings */
        switch (tegra_get_chip_sku()) {
@@ -42,12 +47,18 @@ int pmu_set_nominal(void)
                return -1;
        }
 
-       bus = tegra_i2c_get_dvc_bus_num();
-       if (bus == -1) {
+       ret = tegra_i2c_get_dvc_bus(&bus);
+       if (ret) {
                debug("%s: Cannot find DVC I2C bus\n", __func__);
-               return -1;
+               return ret;
        }
-       tps6586x_init(bus);
+       ret = i2c_get_chip(bus, PMI_I2C_ADDRESS, &dev);
+       if (ret) {
+               debug("%s: Cannot find DVC I2C chip\n", __func__);
+               return ret;
+       }
+
+       tps6586x_init(dev);
        tps6586x_set_pwm_mode(TPS6586X_PWM_SM1);
        return tps6586x_adjust_sm0_sm1(core, cpu, VDD_TRANSITION_STEP,
                                VDD_TRANSITION_RATE, VDD_RELATION);