(EXT) [PATCH] soc: imx: imx8m-blk-ctrl: Make error prints useful

[Alexander Stein]

Am Freitag, 24. Juni 2022, 20:29:39 CEST schrieb Marek Vasut:
> Print the name of the power domain which failed to make the error
> prints actually useful for finding the error.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Alexander Stein <alexander.stein at ew.tq-group.com>
> Cc: Lucas Stach <l.stach at pengutronix.de>
> Cc: Martyn Welch <martyn.welch at collabora.com>
> Cc: Paul Elder <paul.elder at ideasonboard.com>
> Cc: Shawn Guo <shawnguo at kernel.org>
> ---
>  drivers/soc/imx/imx8m-blk-ctrl.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)

I did something similar locally. Especially the 1st two hunks are pretty 
useful.

Acked-by: Alexander Stein <alexander.stein at ew.tq-group.com>

> diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c
> b/drivers/soc/imx/imx8m-blk-ctrl.c index 7ebc28709e945..dff7529268e4d
> 100644
> --- a/drivers/soc/imx/imx8m-blk-ctrl.c
> +++ b/drivers/soc/imx/imx8m-blk-ctrl.c
> @@ -216,7 +216,7 @@ static int imx8m_blk_ctrl_probe(struct platform_device
> *pdev) bc->bus_power_dev = genpd_dev_pm_attach_by_name(dev, "bus");
>  	if (IS_ERR(bc->bus_power_dev))
>  		return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev),
> -				     "failed to attach power 
domain\n");
> +				     "failed to attach power 
domain \"bus\"\n");
> 
>  	for (i = 0; i < bc_data->num_domains; i++) {
>  		const struct imx8m_blk_ctrl_domain_data *data = 
&bc_data->domains[i];
> @@ -238,7 +238,8 @@ static int imx8m_blk_ctrl_probe(struct platform_device
> *pdev) dev_pm_domain_attach_by_name(dev, data->gpc_name);
>  		if (IS_ERR(domain->power_dev)) {
>  			dev_err_probe(dev, PTR_ERR(domain-
>power_dev),
> -				      "failed to attach power 
domain\n");
> +				      "failed to attach power 
domain \"%s\"\n",
> +				      data->gpc_name);
>  			ret = PTR_ERR(domain->power_dev);
>  			goto cleanup_pds;
>  		}
> @@ -251,7 +252,9 @@ static int imx8m_blk_ctrl_probe(struct platform_device
> *pdev)
> 
>  		ret = pm_genpd_init(&domain->genpd, NULL, true);
>  		if (ret) {
> -			dev_err_probe(dev, ret, "failed to init power 
domain\n");
> +			dev_err_probe(dev, ret,
> +				      "failed to init power domain 
\"%s\"\n",
> +				      data->gpc_name);
>  			dev_pm_domain_detach(domain->power_dev, 
true);
>  			goto cleanup_pds;
>  		}