redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

MLK-23888 cpufreq: imx7ulp: Fix cpufreq probe failure due to defer probe 

It is possible that the regulator_get will return defer probe error if
the regulator is not ready when cpufreq doing probe. cpufreq need to
defer probe again if regulator_get return '-EPROBE_DEFER', so fix it.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Anson Huang <anson.huang@nxp.com>
5.4-rM2-2.2.x-imx-squashed
Jacky Bai 2020-05-07 11:04:47 +08:00
parent f51e2308f2
commit 52aa8b0564
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/cpufreq/imx7ulp-cpufreq.c
View File

@ -170,9 +170,10 @@ static int imx7ulp_cpufreq_probe(struct platform_device *pdev)
arm_reg = regulator_get(cpu_dev, "arm");
if (IS_ERR(arm_reg)) {
dev_err(cpu_dev, "failed to get regulator\n");
ret = -ENOENT;
goto put_reg;
if (PTR_ERR(arm_reg) != -EPROBE_DEFER)
dev_err(cpu_dev, "failed to get regulator\n");
ret = PTR_ERR(arm_reg);
goto put_clk;
}
ret = dev_pm_opp_of_add_table(cpu_dev);