On Tue, May 26, 2015 at 11:37:17AM -0700, Arun Ramamurthy wrote:
> Hi
> 
> On 15-05-26 07:19 AM, Felipe Balbi wrote:
> >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.ramamur...@broadcom.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.
> >
> Felipe, after discussion with the maintainers, I have made GENERIC_PHY an
> invisible option as part of this change. Thanks

Then, if the option is invisible, how can you "depend" on it ? It can
never be selected by poking around in Kconfig. IMO, it's
counterintuitive that you need to enable a PHY driver before you can see
your EHCI/OHCI/whatever controller listed in Kconfig.

-- 
balbi

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