linux-kernel - Re: [PATCH v1 5/9] phy: qcom-qmp: Get dp

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Date:   Tue, 25 Aug 2020 23:36:16 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Jeykumar Sankaran <jsanka@...eaurora.org>,
        Chandan Uddaraju <chandanu@...eaurora.org>,
        Vara Reddy <varar@...eaurora.org>,
        Tanmay Shah <tanmay@...eaurora.org>,
        Manu Gautam <mgautam@...eaurora.org>,
        Sandeep Maheswaram <sanm@...eaurora.org>,
        Douglas Anderson <dianders@...omium.org>,
        Sean Paul <seanpaul@...omium.org>,
        Jonathan Marek <jonathan@...ek.ca>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Clark <robdclark@...omium.org>
Subject: Re: [PATCH v1 5/9] phy: qcom-qmp: Get dp_com I/O resource by index

On Tue 25 Aug 21:47 CDT 2020, Stephen Boyd wrote:

> The dp_com resource is always at index 1 according to the dts files in
> the kernel. Get this resource by index so that we don't need to make
> future additions to the DT binding use 'reg-names'.
> 

Afaict the DT binding for the USB/DP phy defines that there should be a
reg name of "dp_com" and the current dts files all specifies this. Am I
missing something?

PS. Why isn't this a devm_platform_ioremap_resource{,_byname}()?

Regards,
Bjorn

> Cc: Jeykumar Sankaran <jsanka@...eaurora.org>
> Cc: Chandan Uddaraju <chandanu@...eaurora.org>
> Cc: Vara Reddy <varar@...eaurora.org>
> Cc: Tanmay Shah <tanmay@...eaurora.org>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> Cc: Manu Gautam <mgautam@...eaurora.org>
> Cc: Sandeep Maheswaram <sanm@...eaurora.org>
> Cc: Douglas Anderson <dianders@...omium.org>
> Cc: Sean Paul <seanpaul@...omium.org>
> Cc: Jonathan Marek <jonathan@...ek.ca>
> Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Cc: Rob Clark <robdclark@...omium.org>
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>
> ---
>  drivers/phy/qualcomm/phy-qcom-qmp.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
> index 40c051813c34..76d7a9e80f04 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp.c
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
> @@ -3266,8 +3266,7 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
>  
>  	/* per PHY dp_com; if PHY has dp_com control block */
>  	if (cfg->has_phy_dp_com_ctrl) {
> -		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> -						   "dp_com");
> +		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
>  		base = devm_ioremap_resource(dev, res);
>  		if (IS_ERR(base))
>  			return PTR_ERR(base);
> -- 
> Sent by a computer, using git, on the internet
>