Re: [PATCH 2/3] usb: ehci-platform: Use devm_of_phy_get_by_index

From: Dmitry Torokhov
Date: Fri Mar 20 2015 - 17:40:48 EST


Hi Arun,

On Fri, Mar 20, 2015 at 02:07:09PM -0700, Arun Ramamurthy wrote:
> Getting phys by index instead of phy names so that the dt
> bindings phy-names remain consistent when multiple phys are present
>
> Reviewed-by: Ray Jui <rjui@xxxxxxxxxxxx>
> Reviewed-by: Scott Branden <sbranden@xxxxxxxxxxxx>
> Signed-off-by: Arun Ramamurthy <arun.ramamurthy@xxxxxxxxxxxx>
> ---
> drivers/usb/host/ehci-platform.c | 20 ++++----------------
> 1 file changed, 4 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
> index d8a75a5..8b0c7ae 100644
> --- a/drivers/usb/host/ehci-platform.c
> +++ b/drivers/usb/host/ehci-platform.c
> @@ -154,7 +154,6 @@ static int ehci_platform_probe(struct platform_device *dev)
> struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev);
> struct ehci_platform_priv *priv;
> struct ehci_hcd *ehci;
> - const char *phy_name;
> int err, irq, phy_num, clk = 0;
>
> if (usb_disabled())
> @@ -212,21 +211,10 @@ static int ehci_platform_probe(struct platform_device *dev)
> return -ENOMEM;
>
> for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
> - err = of_property_read_string_index(
> - dev->dev.of_node,
> - "phy-names", phy_num,
> - &phy_name);
> -
> - if (err < 0) {
> - if (priv->num_phys > 1) {
> - dev_err(&dev->dev, "phy-names not provided");
> - goto err_put_hcd;
> - } else
> - phy_name = "usb";
> - }
> -
> - priv->phys[phy_num] = devm_phy_get(&dev->dev,
> - phy_name);
> + priv->phys[phy_num] =
> + devm_of_phy_get_by_index(&dev->dev,
> + dev->dev.of_node,
> + phy_num);
> if (IS_ERR(priv->phys[phy_num])) {
> err = PTR_ERR(priv->phys[phy_num]);
> if ((priv->num_phys > 1) ||

While you are fixing this can you please correct the wrong indentation
level and clean up that whole weird business of treating "phy" not
present in DT in a special way and, stuffing NULL pointer in priv->phys,
and checking it for NULL elsewhere?

Thanks!

--
Dmitry
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