The platform specific configuration(general_config) is optional.
 However, the DVS settings should be configured explicitly while
 loading the driver.
 This patch enables configuring the default DVS mode even though
 the platform data is not defined.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
        struct lp872x_platform_data *pdata = lp->pdata;
        int ret;
 
-       if (!pdata->update_config)
-               return 0;
+       if (!pdata || !pdata->update_config)
+               goto init_dvs;
 
        ret = lp872x_write_byte(lp, LP872X_GENERAL_CFG, pdata->general_config);
        if (ret)
                return ret;
 
+init_dvs:
        return lp872x_init_dvs(lp);
 }