[PATCH v3 4/6] PCI: mediatek-gen3: Add comment about initialization order in mtk_pcie_en7581_power_up()

[AngeloGioacchino Del Regno]

Il 16/11/24 09:18, Lorenzo Bianconi ha scritto:
> Add a comment in mtk_pcie_en7581_power_up() to clarify, unlike MediaTek
> PCIe controller, the Airoha EN7581 requires PHY initialization and
> power-on before PHY reset deassert.
> 
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
> Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
> ---
>   drivers/pci/controller/pcie-mediatek-gen3.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/pci/controller/pcie-mediatek-gen3.c b/drivers/pci/controller/pcie-mediatek-gen3.c
> index 2b80edd4462ad4e9f2a5d192db7f99307113eb8a..dd30530a43b1097871acc9e76a7534f30819432d 100644
> --- a/drivers/pci/controller/pcie-mediatek-gen3.c
> +++ b/drivers/pci/controller/pcie-mediatek-gen3.c
> @@ -928,6 +928,10 @@ static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie)
>   	 */
>   	mdelay(PCIE_EN7581_RESET_TIME_MS);
>   
> +	/*
> +	 * Unlike the MediaTek controllers, the Airoha EN7581 requires PHY

Unlike the other MediaTek Gen3 controllers, Airoha EN5781 requires.....

(because Airoha *is* MediaTek anyway)

After which,
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>