Currently, we defer probe if regulator_get() returned -EPROBE_DEFER, i.e.
regulator isn't registered yet.
The same is true for clock as well, so lets defer in that case as well.
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/cpufreq/cpufreq-cpu0.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 4273a5f..b5b8e1c 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -150,8 +150,17 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
cpu_clk = clk_get(cpu_dev, NULL);
if (IS_ERR(cpu_clk)) {
- ret = PTR_ERR(cpu_clk);
- pr_err("failed to get cpu0 clock: %d\n", ret);
+ /*
+ * If cpu's clk node is present, but clock is not yet
+ * registered, we should try defering probe.
+ */
+ if (PTR_ERR(cpu_clk) == -EPROBE_DEFER) {
+ dev_err(cpu_dev, "cpu0 clock not ready, retry\n");
+ ret = -EPROBE_DEFER;
+ } else {
+ ret = PTR_ERR(cpu_clk);
+ dev_err(cpu_dev, "failed to get cpu0 clock: %d\n", ret);
+ }
goto out_put_reg;
}
--
2.0.0.rc2
--
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