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SubjectRe: [PATCH] clk: qcom: gdsc: Bump parent usage count when GDSC is found enabled
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Quoting Bjorn Andersson (2022-06-06 14:21:12)
> When a GDSC is found to be enabled at boot the pm_runtime state will
> be unbalanced as the GDSC is later turned off. Fix this by increasing
> the usage counter on the power-domain, in line with how we handled the
> regulator state.
>
> Fixes: 1b771839de05 ("clk: qcom: gdsc: enable optional power domain support")

Is it fixing a regression to the point that I need to merge this on
-fixes? The commit text talks about fixing it but I don't understand the
urgency, i.e. was it discovered recently and this fixes display on some
board or something like that?

> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
> drivers/clk/qcom/gdsc.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c
> index 44520efc6c72..a1fa7c4cff60 100644
> --- a/drivers/clk/qcom/gdsc.c
> +++ b/drivers/clk/qcom/gdsc.c
> @@ -420,6 +420,9 @@ static int gdsc_init(struct gdsc *sc)
> return ret;
> }
>
> + /* ...and the power-domain */
> + gdsc_pm_runtime_get(sc);

Shouldn't we check for error and bail out if it fails?

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