Re: [PATCH 1/2] PCI: tegra194: use dev_err_probe() for PERST GPIO

[Bjorn Helgaas <helgaas@kernel.org>]

On Wed, Oct 07, 2026 at 05:48:46PM +0700, phucduc.bui@gmail.com wrote:
> From: bui duc phuc <phucduc.bui@gmail.com>
> 
> Use dev_err_probe() when getting the PERST GPIO to simplify error
> handling and properly handle -EPROBE_DEFER.
> 
> Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>

For future posts, please match the subject line capitalization style:

  PCI: tegra194: Use ...

And style as "PERST#" in the subject, commit log, and dmesg text to
match spec usage.

No need to repost just for this; we can tweak these when applying.

> ---
>  drivers/pci/controller/dwc/pcie-tegra194.c | 15 +++------------
>  1 file changed, 3 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
> index 63a0f56cad8e..767e11216196 100644
> --- a/drivers/pci/controller/dwc/pcie-tegra194.c
> +++ b/drivers/pci/controller/dwc/pcie-tegra194.c
> @@ -1200,18 +1200,9 @@ static int tegra_pcie_dw_parse_dt(struct tegra_pcie_dw *pcie)
>  
>  	/* Endpoint mode specific DT entries */
>  	pcie->pex_rst_gpiod = devm_gpiod_get(pcie->dev, "reset", GPIOD_IN);
> -	if (IS_ERR(pcie->pex_rst_gpiod)) {
> -		int err = PTR_ERR(pcie->pex_rst_gpiod);
> -		const char *level = KERN_ERR;
> -
> -		if (err == -EPROBE_DEFER)
> -			level = KERN_DEBUG;
> -
> -		dev_printk(level, pcie->dev,
> -			   dev_fmt("Failed to get PERST GPIO: %d\n"),
> -			   err);
> -		return err;
> -	}
> +	if (IS_ERR(pcie->pex_rst_gpiod))
> +		return dev_err_probe(pcie->dev, PTR_ERR(pcie->pex_rst_gpiod),
> +				     "Failed to get PERST GPIO\n");
>  
>  	pcie->pex_refclk_sel_gpiod = devm_gpiod_get_optional(pcie->dev,
>  							     "nvidia,refclk-select",
> -- 
> 2.43.0
>