[PATCH] pci: pcie_dw_meson: fix usb fail when pci link fails to go up

[Neil Armstrong]

On 08/09/2021 14:32, Neil Armstrong wrote:
> On Amlogic A311D, when the PCIe link fails disabling the related clocks
> makes USB fail. For an unknown reason, this doesn happen on the S905D3 SoC.
> 
> Mimic the Linux behavior by not considering a link failure a probe failure,
> and continue even if the PCIe link is down.
> 
> Reported-by: Art Nikpal <email2tema at gmail.com>
> Signed-off-by: Neil Armstrong <narmstrong at baylibre.com>
> ---
>  drivers/pci/pcie_dw_meson.c | 8 +-------
>  1 file changed, 1 insertion(+), 7 deletions(-)
> 
> diff --git a/drivers/pci/pcie_dw_meson.c b/drivers/pci/pcie_dw_meson.c
> index 0525ecbea6..07da9fa533 100644
> --- a/drivers/pci/pcie_dw_meson.c
> +++ b/drivers/pci/pcie_dw_meson.c
> @@ -319,15 +319,9 @@ static int meson_pcie_init_port(struct udevice *dev)
>  
>  	pcie_dw_setup_host(&priv->dw);
>  
> -	ret = meson_pcie_link_up(priv, LINK_SPEED_GEN_2);
> -	if (ret < 0)
> -		goto err_link_up;
> +	meson_pcie_link_up(priv, LINK_SPEED_GEN_2);
>  
>  	return 0;
> -err_link_up:
> -	clk_disable(&priv->clk_port);
> -	clk_disable(&priv->clk_general);
> -	clk_disable(&priv->clk_pclk);
>  err_deassert_bulk:
>  	reset_assert_bulk(&priv->rsts);
>  err_power_off_phy:
> 


Applied to u-boot-amlogic-next

Neil