synaptics_i2c_reg_set
error = synaptics_i2c_reg_set(client, DEV_CONTROL_REG, 0xc1);
error = synaptics_i2c_reg_set(client, INTERRUPT_EN_REG, int_en);
error = synaptics_i2c_reg_set(client, GENERAL_2D_CONTROL_REG, control);
error = synaptics_i2c_reg_set(client, DEV_COMMAND_REG, RESET_COMMAND);
synaptics_i2c_reg_set(touch->client, INTERRUPT_EN_REG, 0);
synaptics_i2c_reg_set(touch->client, DEV_CONTROL_REG, DEEP_SLEEP);
synaptics_i2c_reg_set(client, INTERRUPT_EN_REG, 0);
synaptics_i2c_reg_set(touch->client, DEV_CONTROL_REG, DEEP_SLEEP);