renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-19 02:34:01 +08:00
Code

soc: brcmstb: biuctrl: exit without warning on non brcmstb platforms

Browse Source 
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: f780429adf ("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>
This commit is contained in:
Sudeep Holla 2018-01-12 13:08:14 -08:00 committed by Arnd Bergmann
parent c90801664e
commit a78182980a
1 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/soc/bcm/brcmstb/biuctrl.c
View File

@ -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) {