path: root/drivers/soc/bcm
diff options
authorSudeep Holla <sudeep.holla@arm.com>2018-01-12 13:08:14 -0800
committerArnd Bergmann <arnd@arndb.de>2018-01-15 15:46:17 +0100
commita78182980a2a0045d5971a656248a62d62237234 (patch)
tree8d9a7fe6631af8b88fc8846af3bdadf2996a0aaf /drivers/soc/bcm
parentc90801664e0a7e80dfd502a4cef8452dc203ce1f (diff)
soc: brcmstb: biuctrl: exit without warning on non brcmstb platforms
Currently if this driver is included, we get the following warning on any platforms irrespective of whether it's brcmstb platform or not. " brcmstb: biuctrl: missing BIU control node brcmstb: biuctrl: MCP: Unable to disable write pairing! " This patch allows to exit early without any warning messages on non brcmstb platforms as it's meaningless for them. Cc: Brian Norris <computersforpeace@gmail.com> Cc: Gregory Fong <gregory.0xf0@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: bcm-kernel-feedback-list@broadcom.com Fixes: f780429adfbc ("soc: brcmstb: biuctrl: Move to early_initcall") Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> [florian: Add fixes tag, make initcall non fatal] Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/soc/bcm')
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/soc/bcm/brcmstb/biuctrl.c b/drivers/soc/bcm/brcmstb/biuctrl.c
index 2b23ae7b5e9b..6d89ebf13b8a 100644
--- a/drivers/soc/bcm/brcmstb/biuctrl.c
+++ b/drivers/soc/bcm/brcmstb/biuctrl.c
@@ -162,17 +162,11 @@ static void __init mcp_b53_set(void)
cbc_writel(reg, CPU_WRITEBACK_CTRL_REG);
-static int __init setup_hifcpubiuctrl_regs(void)
+static int __init setup_hifcpubiuctrl_regs(struct device_node *np)
- struct device_node *np, *cpu_dn;
+ struct device_node *cpu_dn;
int ret = 0;
- np = of_find_compatible_node(NULL, NULL, "brcm,brcmstb-cpu-biu-ctrl");
- if (!np) {
- pr_err("missing BIU control node\n");
- return -ENODEV;
- }
cpubiuctrl_base = of_iomap(np, 0);
if (!cpubiuctrl_base) {
pr_err("failed to remap BIU control base\n");
@@ -242,9 +236,17 @@ static struct syscore_ops brcmstb_cpu_credit_syscore_ops = {
static int __init brcmstb_biuctrl_init(void)
+ struct device_node *np;
int ret;
- setup_hifcpubiuctrl_regs();
+ /* We might be running on a multi-platform kernel, don't make this a
+ * fatal error, just bail out early
+ */
+ np = of_find_compatible_node(NULL, NULL, "brcm,brcmstb-cpu-biu-ctrl");
+ if (!np)
+ return 0;
+ setup_hifcpubiuctrl_regs(np);
ret = mcp_write_pairing_set();
if (ret) {

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