linux-kernel - Re: [PATCH 2/2] arm: omap: remove *.auto* from device names given in usb_bind

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Message-ID: <20130729150638.GD3063@radagast>
Date:	Mon, 29 Jul 2013 18:06:38 +0300
From:	Felipe Balbi <balbi@...com>
To:	Kishon Vijay Abraham I <kishon@...com>
CC:	<balbi@...com>, <tony@...mide.com>, <linux@....linux.org.uk>,
	<eballetbo@...il.com>, <javier@...hile0.org>,
	<gregkh@...uxfoundation.org>, <linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 2/2] arm: omap: remove *.auto* from device names given in
 usb_bind_phy

Hi,

On Fri, Jul 26, 2013 at 02:33:38PM +0530, Kishon Vijay Abraham I wrote:
> Previously MUSB wrapper (OMAP) device used PLATFORM_DEVID_AUTO while creating
> MUSB core device. So in usb_bind_phy (binds the controller with the PHY), the
> device name of the controller had *.auto* in it. Since with using
> PLATFORM_DEVID_AUTO, there is no way to know the exact device name in advance,
> the data given in usb_bind_phy became obsolete and usb_get_phy was failing.
> So MUSB wrapper was modified not to use PLATFORM_DEVID_AUTO. Corresponding
> change is done in board file here.
> 
> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
> ---
>  arch/arm/mach-omap2/board-2430sdp.c          |    2 +-
>  arch/arm/mach-omap2/board-3430sdp.c          |    2 +-
>  arch/arm/mach-omap2/board-cm-t35.c           |    2 +-
>  arch/arm/mach-omap2/board-devkit8000.c       |    2 +-
>  arch/arm/mach-omap2/board-igep0020.c         |    2 +-
>  arch/arm/mach-omap2/board-ldp.c              |    2 +-
>  arch/arm/mach-omap2/board-omap3beagle.c      |    2 +-
>  arch/arm/mach-omap2/board-omap3evm.c         |    2 +-
>  arch/arm/mach-omap2/board-omap3logic.c       |    2 +-
>  arch/arm/mach-omap2/board-omap3pandora.c     |    2 +-
>  arch/arm/mach-omap2/board-omap3stalker.c     |    2 +-
>  arch/arm/mach-omap2/board-omap3touchbook.c   |    2 +-
>  arch/arm/mach-omap2/board-overo.c            |    2 +-
>  arch/arm/mach-omap2/board-rm680.c            |    2 +-
>  arch/arm/mach-omap2/board-rx51.c             |    2 +-
>  arch/arm/mach-omap2/board-zoom-peripherals.c |    2 +-
>  16 files changed, 16 insertions(+), 16 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
> index 244d8a5..17bb076 100644
> --- a/arch/arm/mach-omap2/board-2430sdp.c
> +++ b/arch/arm/mach-omap2/board-2430sdp.c
> @@ -233,7 +233,7 @@ static void __init omap_2430sdp_init(void)
>  	omap_hsmmc_init(mmc);
>  
>  	omap_mux_init_signal("usb0hs_stp", OMAP_PULL_ENA | OMAP_PULL_UP);
> -	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
> +	usb_bind_phy("musb-hdrc.0", 0, "twl4030_usb");

how about moving usb_bind_phy() calls to omap2430.c ?

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index f44e8b5..b6abc1a 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -544,6 +544,9 @@ static int omap2430_probe(struct platform_device *pdev)
 
 		pdata->board_data	= data;
 		pdata->config		= config;
+	} else {
+		/* bind the PHY */
+		usb_bind_phy(dev_name(&musb->dev), 0, "twl4030_usb");
 	}
 
 	if (pdata->has_mailbox) {

The only problem is if some board comes with a PHY other than
twl4030_usb, but in that case we can add a separate compatible flag and
treat it properly. We only need to bind the phy in non-DT case anyway,
so that's temporary. It might be better than to reintroduce the IDR in
musb_core.c.

-- 
balbi

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