| Message ID | 20241116-pcie-en7581-fixes-v3-4-f7add3afc27e@kernel.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | PCI: mediatek-gen3: mtk_pcie_en7581_power_up() code refactoring | expand |
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@linaro.org> > Signed-off-by: Lorenzo Bianconi <lorenzo@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@collabora.com>
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 + * initialization and power-on before PHY reset deassert. + */ err = phy_init(pcie->phy); if (err) { dev_err(dev, "failed to initialize PHY\n");