linux-kernel - Re: [PATCH v3 1/3] phy: Add exynos-simple-phy driver

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Message-id: <1584926.JkD1mqdaNu@amdc1032>
Date:	Thu, 15 May 2014 15:31:15 +0200
From:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:	Rahul Sharma <rahul.sharma@...sung.com>
Cc:	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, a.hajda@...sung.com,
	t.stanislaws@...sung.com, devicetree@...r.kernel.org,
	kgene.kim@...sung.com, kishon@...com, kyungmin.park@...sung.com,
	robh+dt@...nel.org, grant.likely@...aro.org,
	sylvester.nawrocki@...il.com, joshi@...sung.com
Subject: Re: [PATCH v3 1/3] phy: Add exynos-simple-phy driver


Hi,

On Thursday, May 15, 2014 12:47:21 AM Rahul Sharma wrote:
> From: Tomasz Stanislawski <t.stanislaws@...sung.com>
> 
> Add exynos-simple-phy driver to support a single register
> PHY interfaces present on Exynos4 SoC.
> 
> Signed-off-by: Tomasz Stanislawski <t.stanislaws@...sung.com>
> Signed-off-by: Rahul Sharma <Rahul.Sharma@...sung.com>
> 
> ---
>  .../devicetree/bindings/phy/samsung-phy.txt        |   56 ++++++
>  drivers/phy/Kconfig                                |    5 +
>  drivers/phy/Makefile                               |    1 +
>  drivers/phy/exynos-simple-phy.c                    |  189 ++++++++++++++++++++
>  include/dt-bindings/phy/exynos-simple-phy.h        |   27 +++
>  5 files changed, 278 insertions(+)
>  create mode 100644 drivers/phy/exynos-simple-phy.c
>  create mode 100644 include/dt-bindings/phy/exynos-simple-phy.h

[...]

> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
> index 16a2f06..2a13e0d 100644
> --- a/drivers/phy/Kconfig
> +++ b/drivers/phy/Kconfig
> @@ -178,4 +178,9 @@ config PHY_XGENE
>  	help
>  	  This option enables support for APM X-Gene SoC multi-purpose PHY.
>  
> +config EXYNOS_SIMPLE_PHY
> +	tristate "Exynos Simple PHY driver"

Please limit this driver to EXYNOS platforms with:

	depends on ARCH_EXYNOS 

or (optionally)

	depends on ARCH_EXYNOS || COMPILE_TEST

Moreover the generic PHY dependency is missing.  It can be fixed with:

	select GENERIC_PHY

> +	help
> +	  Support for 1-bit PHY controllers on SoCs from Exynos family.
> +
>  endmenu

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

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