Re: [PATCH 3/3] soc: qcom: pmic_glink: Actually communicate with remote goes down

Neil Armstrong
2024-08-19T09:16:30Z

On 19/08/2024 01:17, Bjorn Andersson wrote:
> When the pmic_glink state is UP and we either receive a protection-
> domain (PD) notifcation indicating that the PD is going down, or that
> the whole remoteproc is going down, it's expected that the pmic_glink
> client instances are notified that their function has gone DOWN.
>
> This is not what the code does, which results in the client state either
> not updating, or being wrong in many cases. So let's fix the conditions.
>
> Fixes: 58ef4ece1e41 ("soc: qcom: pmic_glink: Introduce base PMIC GLINK driver")
> Cc: stable@vger.kernel.org
> Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
> ---
> drivers/soc/qcom/pmic_glink.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c
> index e4747f1d3da5..cb202a37e8ab 100644
> --- a/drivers/soc/qcom/pmic_glink.c
> +++ b/drivers/soc/qcom/pmic_glink.c
> @@ -191,7 +191,7 @@ static void pmic_glink_state_notify_clients(struct pmic_glink *pg)
> if (pg->pdr_state == SERVREG_SERVICE_STATE_UP && pg->ept)
> new_state = SERVREG_SERVICE_STATE_UP;
> } else {
> - if (pg->pdr_state == SERVREG_SERVICE_STATE_UP && pg->ept)
> + if (pg->pdr_state == SERVREG_SERVICE_STATE_DOWN || !pg->ept)
> new_state = SERVREG_SERVICE_STATE_DOWN;
> }
>
>

Good catch!

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>