[PATCH v2 1/4] PCI: mediatek-gen3: Add missing reset_control_deassert() for mac_rst in mtk_pcie_en7581_power_up()

[Manivannan Sadhasivam]

On Sat, Nov 09, 2024 at 10:28:37AM +0100, Lorenzo Bianconi wrote:
> Even if this is not a real issue since Airoha EN7581 SoC does not require
> the mac reset line, add missing reset_control_deassert() for mac reset
> line in mtk_pcie_en7581_power_up() callback.
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>

- Mani

> ---
>  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 66ce4b5d309bb6d64618c70ac5e0a529e0910511..0fac0b9fd785e463d26d29d695b923db41eef9cc 100644
> --- a/drivers/pci/controller/pcie-mediatek-gen3.c
> +++ b/drivers/pci/controller/pcie-mediatek-gen3.c
> @@ -897,6 +897,9 @@ static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie)
>  	 */
>  	mdelay(PCIE_EN7581_RESET_TIME_MS);
>  
> +	/* MAC power on and enable transaction layer clocks */
> +	reset_control_deassert(pcie->mac_reset);
> +
>  	pm_runtime_enable(dev);
>  	pm_runtime_get_sync(dev);
>  
> @@ -931,6 +934,7 @@ static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie)
>  err_clk_prepare:
>  	pm_runtime_put_sync(dev);
>  	pm_runtime_disable(dev);
> +	reset_control_assert(pcie->mac_reset);
>  	reset_control_bulk_assert(pcie->soc->phy_resets.num_resets, pcie->phy_resets);
>  err_phy_deassert:
>  	phy_power_off(pcie->phy);
> 
> -- 
> 2.47.0
> 

-- 
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