[PATCH v6 4/5] PCI: qcom: Setup PHY to work in RC mode

Lorenzo Pieralisi lpieralisi at kernel.org
Tue Sep 27 02:37:59 PDT 2022


On Tue, Sep 27, 2022 at 12:22:05PM +0300, Dmitry Baryshkov wrote:
> Call phy_set_mode_ext() to notify the PHY driver that the PHY is being
> used in the RC mode.
> 
> Reviewed-by: Jingoo Han <jingoohan1 at gmail.com>
> Reviewed-by: Johan Hovold <johan+linaro at kernel.org>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> ---
>  drivers/pci/controller/dwc/pcie-qcom.c | 5 +++++
>  1 file changed, 5 insertions(+)

Acked-by: Lorenzo Pieralisi <lpieralisi at kernel.org>

> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index 66886dc6e777..1027281bd6ff 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -22,6 +22,7 @@
>  #include <linux/pci.h>
>  #include <linux/pm_runtime.h>
>  #include <linux/platform_device.h>
> +#include <linux/phy/pcie.h>
>  #include <linux/phy/phy.h>
>  #include <linux/regulator/consumer.h>
>  #include <linux/reset.h>
> @@ -1494,6 +1495,10 @@ static int qcom_pcie_host_init(struct dw_pcie_rp *pp)
>  	if (ret)
>  		return ret;
>  
> +	ret = phy_set_mode_ext(pcie->phy, PHY_MODE_PCIE, PHY_MODE_PCIE_RC);
> +	if (ret)
> +		goto err_deinit;
> +
>  	ret = phy_power_on(pcie->phy);
>  	if (ret)
>  		goto err_deinit;
> -- 
> 2.35.1
> 



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