From 79a5a18aa9d1062205cdcfa183d4cd5241d1b8da Mon Sep 17 00:00:00 2001 From: Grygorii Strashko Date: Mon, 19 Nov 2018 19:24:20 -0600 Subject: phy: core: rework phy_set_mode to accept phy mode and submode Currently the attempt to add support for Ethernet interface mode PHY (MII/GMII/RGMII) will lead to the necessity of extending enum phy_mode and duplicate there values from phy_interface_t enum (or introduce more PHY callbacks) [1]. Both approaches are ineffective and would lead to fast bloating of enum phy_mode or struct phy_ops in the process of adding more PHYs for different subsystems which will make them unmaintainable. As discussed in [1] the solution could be to introduce dual level PHYs mode configuration - PHY mode and PHY submode. The PHY mode will define generic PHY type (subsystem - PCIE/ETHERNET/USB_) while the PHY submode - subsystem specific interface mode. The last is usually already defined in corresponding subsystem headers (phy_interface_t for Ethernet, enum usb_device_speed for USB). This patch is cumulative change which refactors PHY framework code to support dual level PHYs mode configuration - PHY mode and PHY submode. It extends .set_mode() callback to support additional parameter "int submode" and converts all corresponding PHY drivers to support new .set_mode() callback declaration. The new extended PHY API int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode) is introduced to support dual level PHYs mode configuration and existing phy_set_mode() API is converted to macros, so PHY framework consumers do not need to be changed (~21 matches). [1] http://lkml.kernel.org/r/d63588f6-9ab0-848a-5ad4-8073143bd95d@ti.com Signed-off-by: Grygorii Strashko Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/allwinner/phy-sun4i-usb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/phy/allwinner') diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index ae16854a770a..5163097b43df 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -478,7 +478,8 @@ static int sun4i_usb_phy_power_off(struct phy *_phy) return 0; } -static int sun4i_usb_phy_set_mode(struct phy *_phy, enum phy_mode mode) +static int sun4i_usb_phy_set_mode(struct phy *_phy, + enum phy_mode mode, int submode) { struct sun4i_usb_phy *phy = phy_get_drvdata(_phy); struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy); -- cgit v1.2.3