mfd: wm8994: Allow to configure Speaker Mode Pullup from dts

Configuring Speaker Mode Pullup was already supported in pdata, but not
in the dts.

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Signed-off-by: Anthony Brandon <anthony@amarulasolutions.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/wm8994-core.c

@@ -302,6 +302,8 @@ static int wm8994_set_pdata_from_of(struct wm8994 *wm8994)
 	if (of_find_property(np, "wlf,ldoena-always-driven", NULL))
 		pdata->lineout2fb = true;
 
+	pdata->spkmode_pu = of_property_read_bool(np, "wlf,spkmode-pu");
+
 	pdata->ldo[0].enable = of_get_named_gpio(np, "wlf,ldo1ena", 0);
 	if (pdata->ldo[0].enable < 0)
 		pdata->ldo[0].enable = 0;