openwrt/target/linux/brcm2708/patches-4.19/950-0555-soc-bcm-bcm2835-pm-Fix-PM_IMAGE_PERI-power-domain-su.patch
Álvaro Fernández Rojas 4f8b350be0 brcm2708: update to latest patches from RPi foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2019-09-19 17:38:18 +02:00

46 lines
1.3 KiB
Diff

From ea44a81b7daf511788aecaee7575feff359c5d19 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Fri, 11 Jan 2019 17:29:10 -0800
Subject: [PATCH 555/806] 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 <eric@anholt.net>
Fixes: 670c672608a1 ("soc: bcm: bcm2835-pm: Add support for power domains under a new binding.")
---
drivers/soc/bcm/bcm2835-power.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
--- 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 bcm
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);