+
+ return pinctrl_pm_select_idle_state(i2c_dev->dev);
+}
+
+static int tegra_i2c_wait_for_config_load(struct tegra_i2c_dev *i2c_dev)
+{
+ unsigned long reg_offset;
+ void __iomem *addr;
+ u32 val;
+ int err;
+
+ if (i2c_dev->hw->has_config_load_reg) {
+ reg_offset = tegra_i2c_reg_addr(i2c_dev, I2C_CONFIG_LOAD);
+ addr = i2c_dev->base + reg_offset;
+ i2c_writel(i2c_dev, I2C_MSTR_CONFIG_LOAD, I2C_CONFIG_LOAD);
+ if (in_interrupt())
+ err = readl_poll_timeout_atomic(addr, val, val == 0,
+ 1000, I2C_CONFIG_LOAD_TIMEOUT);
+ else
+ err = readl_poll_timeout(addr, val, val == 0,
+ 1000, I2C_CONFIG_LOAD_TIMEOUT);
+
+ if (err) {
+ dev_warn(i2c_dev->dev,
+ "timeout waiting for config load\n");
+ return err;
+ }
+ }
+
+ return 0;