linux-kernel - Re: [PATCH v3 4/6] ARM: OMAP: USB: Add phy binding information

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Message-ID: <20130320165141.GP16413@atomide.com>
Date:	Wed, 20 Mar 2013 09:51:41 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Kishon Vijay Abraham I <kishon@...com>
Cc:	balbi@...com, gregkh@...uxfoundation.org, arnd@...db.de,
	akpm@...ux-foundation.org, rob@...dley.net, davem@...emloft.net,
	cesarb@...arb.net, linux-usb@...r.kernel.org,
	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
	grant.likely@...retlab.ca, rob.herring@...xeda.com,
	b-cousson@...com, linux@....linux.org.uk, eballetbo@...il.com,
	javier@...hile0.org, mchehab@...hat.com, santosh.shilimkar@...com,
	broonie@...nsource.wolfsonmicro.com, swarren@...dia.com,
	linux-doc@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 4/6] ARM: OMAP: USB: Add phy binding information

* Kishon Vijay Abraham I <kishon@...com> [130320 02:17]:
> 
> --- a/arch/arm/mach-omap2/board-2430sdp.c
> +++ b/arch/arm/mach-omap2/board-2430sdp.c
> @@ -265,6 +266,7 @@ static void __init omap_2430sdp_init(void)
>  
>  	omap_mux_init_signal("usb0hs_stp", OMAP_PULL_ENA | OMAP_PULL_UP);
>  	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
> +	phy_bind("musb-hdrc.0.auto", 0, "twl4030_usb");
>  	usb_musb_init(NULL);
>  
>  	board_smc91x_init();
> --- a/arch/arm/mach-omap2/board-3430sdp.c
> +++ b/arch/arm/mach-omap2/board-3430sdp.c
> @@ -601,6 +602,7 @@ static void __init omap_3430sdp_init(void)
>  	omap_serial_init();
>  	omap_sdrc_init(hyb18m512160af6_sdrc_params, NULL);
>  	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
> +	phy_bind("musb-hdrc.0.auto", 0, "twl4030_usb");
>  	usb_musb_init(NULL);
>  	board_smc91x_init();
>  	board_flash_init(sdp_flash_partitions, chip_sel_3430, 0);

Can't you call phy_bind() from usb_musb_init() with the default
values automatically when usb_musb_init() is passed NULL?

That way you don't have to patch every board-*.c file with the
same lines, and don't need to include <linux/phy/phy.h> in each
board-*.c file.

> --- a/arch/arm/mach-omap2/board-4430sdp.c
> +++ b/arch/arm/mach-omap2/board-4430sdp.c
> @@ -32,6 +32,7 @@
>  #include <linux/platform_data/omap4-keypad.h>
>  #include <linux/usb/musb.h>
>  #include <linux/usb/phy.h>
> +#include <linux/phy/phy.h>
>  
>  #include <asm/mach-types.h>
>  #include <asm/mach/arch.h>
> @@ -725,6 +726,7 @@ static void __init omap_4430sdp_init(void)
>  	omap4_twl6030_hsmmc_init(mmc);
>  
>  	usb_bind_phy("musb-hdrc.0.auto", 0, "omap-usb2.1.auto");
> +	phy_bind("musb-hdrc.0.auto", 0, "omap-usb2.1.auto");
>  	usb_musb_init(&musb_board_data);
>  
>  	status = omap_ethernet_init();

Here usb_musb_init() gets called with musb_board_data, so
keeping the phy_bind() in the board-4430sdp.c can then override
the default in usb_musb_init().

Regards,

Tony
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