driver: reset: sti: add keyscan for stih416

Add keyscan reset on stih416 reset controller.
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NGiuseppe Condorelli <giuseppe.condorelli@st.com>
Signed-off-by: NGabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: NMaxime Coquelin <maxime.coquelin@st.com>

drivers/reset/sti/reset-stih416.c

@@ -104,6 +104,7 @@ static const struct syscfg_reset_channel_data stih416_softresets[] = {
 	[STIH416_COMPO_A_SOFTRESET] = STIH416_SRST_CPU(SYSCFG_7564, 4),
 	[STIH416_VP8_DEC_SOFTRESET] = STIH416_SRST_CPU(SYSCFG_7564, 10),
 	[STIH416_VTG_MAIN_SOFTRESET] = STIH416_SRST_CPU(SYSCFG_7564, 16),
+	[STIH416_KEYSCAN_SOFTRESET] = STIH416_SRST_LPM(LPM_SYSCFG_1, 8),
 };
 
 static struct syscfg_reset_controller_data stih416_powerdown_controller = {

include/dt-bindings/reset-controller/stih416-resets.h

@@ -46,5 +46,6 @@
 #define STIH416_COMPO_A_SOFTRESET	25
 #define STIH416_VP8_DEC_SOFTRESET	26
 #define STIH416_VTG_MAIN_SOFTRESET	27
+#define STIH416_KEYSCAN_SOFTRESET	28
 
 #endif /* _DT_BINDINGS_RESET_CONTROLLER_STIH416 */