linux-kernel - Re: [PATCH] soc: qcom: pmic_glink_altmode: Print error when retimer setup fails

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Date:   Sun, 15 Oct 2023 20:18:29 -0700
From:   Bjorn Andersson <andersson@...nel.org>
To:     Luca Weiss <luca.weiss@...rphone.com>
Cc:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] soc: qcom: pmic_glink_altmode: Print error when retimer
 setup fails

On Fri, Oct 13, 2023 at 03:56:40PM +0200, Luca Weiss wrote:
> It can be useful to know with which return value the retimer_set call
> failed, so include this info in the dev_err print.
> 

Is this useful during development, or during normal execution etc. How
about using kretprobe or similar tools?


If you insist, could you please make sure that the style matches across
the various typec_*_set() calls in the driver?

Regards,
Bjorn

> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>  drivers/soc/qcom/pmic_glink_altmode.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/soc/qcom/pmic_glink_altmode.c b/drivers/soc/qcom/pmic_glink_altmode.c
> index 9569d999391d..136713e1155e 100644
> --- a/drivers/soc/qcom/pmic_glink_altmode.c
> +++ b/drivers/soc/qcom/pmic_glink_altmode.c
> @@ -168,7 +168,7 @@ static void pmic_glink_altmode_enable_dp(struct pmic_glink_altmode *altmode,
>  
>  	ret = typec_retimer_set(port->typec_retimer, &port->retimer_state);
>  	if (ret)
> -		dev_err(altmode->dev, "failed to setup retimer to DP\n");
> +		dev_err(altmode->dev, "failed to setup retimer to DP: %d\n", ret);
>  }
>  
>  static void pmic_glink_altmode_enable_usb(struct pmic_glink_altmode *altmode,
> 
> ---
> base-commit: e3b18f7200f45d66f7141136c25554ac1e82009b
> change-id: 20231013-glink-altmode-ret-3911e6c1eab5
> 
> Best regards,
> -- 
> Luca Weiss <luca.weiss@...rphone.com>
>