soc: bcm: bcm2835-pm: Fix PM_IMAGE_PERI power domain support.

We don't have ASB master/slave regs for this domain, so just skip that step. Signed-off-by: Eric Anholt <[email protected]> Fixes: 670c672 ("soc: bcm: bcm2835-pm: Add support for power domains under a new binding.")
brucespang · Mar 4, 2019 · 7f3d6c8 · 7f3d6c8
1 parent e1dc2b2
commit 7f3d6c8
Showing 1 changed file with 12 additions and 2 deletions.
diff --git a/drivers/soc/bcm/bcm2835-power.c b/drivers/soc/bcm/bcm2835-power.c
@@ -150,7 +150,12 @@ struct bcm2835_power {
 
 static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg)
 {
-	u64 start = ktime_get_ns();
+	u64 start;
+
+	if (!reg)
+		return 0;
+
+	start = ktime_get_ns();
 
 	/* Enable the module's async AXI bridges. */
 	ASB_WRITE(reg, ASB_READ(reg) & ~ASB_REQ_STOP);
@@ -165,7 +170,12 @@ static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg)
 
 static int bcm2835_asb_disable(struct bcm2835_power *power, u32 reg)
 {
-	u64 start = ktime_get_ns();
+	u64 start;
+
+	if (!reg)
+		return 0;
+
+	start = ktime_get_ns();
 
 	/* Enable the module's async AXI bridges. */
 	ASB_WRITE(reg, ASB_READ(reg) | ASB_REQ_STOP);