linux-kernel - Re: [PATCHv3 1/4] phy: phy-core: Make GENERIC

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Date:	Tue, 26 May 2015 09:19:38 -0500
From:	Felipe Balbi <balbi@...com>
To:	Arun Ramamurthy <arun.ramamurthy@...adcom.com>
CC:	<balbi@...com>, Jonathan Corbet <corbet@....net>,
	Tejun Heo <tj@...nel.org>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
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	Kishon Vijay Abraham I <kishon@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Tony Prisk <linux@...sktech.co.nz>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Arnd Bergmann <arnd@...db.de>,
	Mathias Nyman <mathias.nyman@...ux.intel.com>,
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	<bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCHv3 1/4] phy: phy-core: Make GENERIC_PHY an invisible option

HI,

On Mon, May 25, 2015 at 02:19:58PM -0700, Arun Ramamurthy wrote:
> 
> 
> On 15-05-14 05:52 PM, Felipe Balbi wrote:
> >Hi,
> >
> >On Wed, Apr 22, 2015 at 04:04:10PM -0700, Arun Ramamurthy wrote:
> >>Most of the phy providers use "select" to enable GENERIC_PHY. Since select
> >>is only recommended when the config is not visible, GENERIC_PHY is changed
> >>an invisible option. To maintain consistency, all phy providers are changed
> >>to "select" GENERIC_PHY and all non-phy drivers use "depends on" when the
> >>phy framework is explicity required. USB_MUSB_OMAP2PLUS has a cyclic
> >>dependency, so it is left as "select".
> >>
> >>Signed-off-by: Arun Ramamurthy <arun.ramamurthy@...adcom.com>
> >>---
> >>  drivers/ata/Kconfig                       | 1 -
> >>  drivers/media/platform/exynos4-is/Kconfig | 2 +-
> >>  drivers/phy/Kconfig                       | 4 ++--
> >>  drivers/usb/host/Kconfig                  | 4 ++--
> >>  drivers/video/fbdev/exynos/Kconfig        | 2 +-
> >>  5 files changed, 6 insertions(+), 7 deletions(-)
> >>
> >>diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
> >>index 5f60155..6d2e881 100644
> >>--- a/drivers/ata/Kconfig
> >>+++ b/drivers/ata/Kconfig
> >>@@ -301,7 +301,6 @@ config SATA_MV
> >>  	tristate "Marvell SATA support"
> >>  	depends on PCI || ARCH_DOVE || ARCH_MV78XX0 || \
> >>  		   ARCH_MVEBU || ARCH_ORION5X || COMPILE_TEST
> >>-	select GENERIC_PHY
> >>  	help
> >>  	  This option enables support for the Marvell Serial ATA family.
> >>  	  Currently supports 88SX[56]0[48][01] PCI(-X) chips,
> >>diff --git a/drivers/media/platform/exynos4-is/Kconfig b/drivers/media/platform/exynos4-is/Kconfig
> >>index b7b2e47..b6f3eaa 100644
> >>--- a/drivers/media/platform/exynos4-is/Kconfig
> >>+++ b/drivers/media/platform/exynos4-is/Kconfig
> >>@@ -31,7 +31,7 @@ config VIDEO_S5P_FIMC
> >>  config VIDEO_S5P_MIPI_CSIS
> >>  	tristate "S5P/EXYNOS MIPI-CSI2 receiver (MIPI-CSIS) driver"
> >>  	depends on REGULATOR
> >>-	select GENERIC_PHY
> >>+	depends on GENERIC_PHY
> >>  	help
> >>  	  This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC MIPI-CSI2
> >>  	  receiver (MIPI-CSIS) devices.
> >>diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
> >>index 2962de2..edecdb1 100644
> >>--- a/drivers/phy/Kconfig
> >>+++ b/drivers/phy/Kconfig
> >>@@ -5,7 +5,7 @@
> >>  menu "PHY Subsystem"
> >>
> >>  config GENERIC_PHY
> >>-	bool "PHY Core"
> >>+	bool
> >>  	help
> >>  	  Generic PHY support.
> >>
> >>@@ -72,7 +72,7 @@ config PHY_MIPHY365X
> >>  config PHY_RCAR_GEN2
> >>  	tristate "Renesas R-Car generation 2 USB PHY driver"
> >>  	depends on ARCH_SHMOBILE
> >>-	depends on GENERIC_PHY
> >>+	select GENERIC_PHY
> >
> >so some you changed from depends to select...
> >
> >>  	help
> >>  	  Support for USB PHY found on Renesas R-Car generation 2 SoCs.
> >>
> >>diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> >>index 5ad60e4..e2197e2 100644
> >>--- a/drivers/usb/host/Kconfig
> >>+++ b/drivers/usb/host/Kconfig
> >>@@ -182,7 +182,7 @@ config USB_EHCI_HCD_SPEAR
> >>  config USB_EHCI_HCD_STI
> >>  	tristate "Support for ST STiHxxx on-chip EHCI USB controller"
> >>  	depends on ARCH_STI && OF
> >>-	select GENERIC_PHY
> >>+	depends on GENERIC_PHY
> >
> >while others you changed from select to depends.
> >
> >NAK.
> >
> Felipe, I dont understand your concern, could you please explain it more
> detail?  The logic behind the changes is that in cases where there was an
> explicit dependency, I changed it to "depends on" and in other cases I
> changed it to "selects". Thanks

Since GENERIC_PHY is visible from Kconfig, it would be much nicer to
avoid select altogether.

-- 
balbi

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