clk: st: Add quadfs reset handling

This patch adds the support of quadfs reset handling.

Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c
index b925580..4cd10b2 100644
--- a/drivers/clk/st/clkgen-fsyn.c
+++ b/drivers/clk/st/clkgen-fsyn.c
@@ -70,12 +70,14 @@
 	bool powerup_polarity;
 	bool standby_polarity;
 	bool nsdiv_present;
+	bool nrst_present;
 	struct clkgen_field ndiv;
 	struct clkgen_field ref_bw;
 	struct clkgen_field nreset;
 	struct clkgen_field npda;
 	struct clkgen_field lock_status;
 
+	struct clkgen_field nrst[QUADFS_MAX_CHAN];
 	struct clkgen_field nsb[QUADFS_MAX_CHAN];
 	struct clkgen_field en[QUADFS_MAX_CHAN];
 	struct clkgen_field mdiv[QUADFS_MAX_CHAN];
@@ -615,6 +617,9 @@
 
 	CLKGEN_WRITE(fs, nsb[fs->chan], !fs->data->standby_polarity);
 
+	if (fs->data->nrst_present)
+		CLKGEN_WRITE(fs, nrst[fs->chan], 0);
+
 	if (fs->lock)
 		spin_unlock_irqrestore(fs->lock, flags);