linux/drivers/net/phy
Roger Quadros 69226896ad mdio_bus: Issue GPIO RESET to PHYs.
Some boards [1] leave the PHYs at an invalid state
during system power-up or reset thus causing unreliability
issues with the PHY which manifests as PHY not being detected
or link not functional. To fix this, these PHYs need to be RESET
via a GPIO connected to the PHY's RESET pin.

Some boards have a single GPIO controlling the PHY RESET pin of all
PHYs on the bus whereas some others have separate GPIOs controlling
individual PHY RESETs.

In both cases, the RESET de-assertion cannot be done in the PHY driver
as the PHY will not probe till its reset is de-asserted.
So do the RESET de-assertion in the MDIO bus driver.

[1] - am572x-idk, am571x-idk, a437x-idk

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24 12:40:24 -04:00
..
amd.c
aquantia.c net: phy: aquantia: add PHY ID of AQR106 and AQR107 2016-10-20 14:25:23 -04:00
at803x.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-30 12:42:58 -04:00
bcm7xxx.c net: phy: bcm7xxx: add support for 28nm EPHY 2017-03-13 21:51:49 -07:00
bcm63xx.c net: phy: bcm63xx: Utilize correct config_intr function 2017-01-18 16:56:10 -05:00
bcm87xx.c
bcm-cygnus.c net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause 2016-12-10 23:31:19 -05:00
bcm-phy-lib.c net: phy: switch remaining users to phy_(read|write)_mmd() 2017-03-22 12:43:00 -07:00
bcm-phy-lib.h net: phy: broadcom: Add support code for reading PHY counters 2016-11-30 10:22:27 -05:00
broadcom.c net: phy: broadcom: rehook BCM54612E specific init 2017-02-01 14:20:20 -05:00
cicada.c
davicom.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dp83640_reg.h
dp83640.c dp83640: don't recieve time stamps twice 2017-04-20 16:00:48 -04:00
dp83848.c net: phy: dp83848: add DP83620 PHY support 2017-01-17 15:47:25 -05:00
dp83867.c net: phy: switch remaining users to phy_(read|write)_mmd() 2017-03-22 12:43:00 -07:00
et1011c.c
fixed_phy.c net: phy: fixed_phy: fix of_node leak in fixed_phy_unregister 2016-11-17 12:05:05 -05:00
icplus.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
intel-xway.c net: phy: switch remaining users to phy_(read|write)_mmd() 2017-03-22 12:43:00 -07:00
Kconfig net: phy: Allow splitting MDIO bus/device support from PHYs 2017-03-24 12:51:05 -07:00
lxt.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
Makefile net: phy: Allow building mdio-boardinfo into the kernel 2017-03-29 10:32:32 -07:00
marvell.c net: phy: marvell: Fix double free of hwmon device 2017-03-09 22:41:03 -08:00
mdio_bus.c mdio_bus: Issue GPIO RESET to PHYs. 2017-04-24 12:40:24 -04:00
mdio_device.c net: phy: Allow pre-declaration of MDIO devices 2017-02-07 10:51:46 -05:00
mdio-bcm-iproc.c net: phy: Initialize mdio clock at probe function 2017-02-09 17:10:23 -05:00
mdio-bcm-unimac.c net: bcmgenet: add support for the GENETv5 hardware 2017-03-13 21:51:51 -07:00
mdio-bitbang.c
mdio-boardinfo.c net: phy: Allow building mdio-boardinfo into the kernel 2017-03-29 10:32:32 -07:00
mdio-boardinfo.h net: phy: Allow building mdio-boardinfo into the kernel 2017-03-29 10:32:32 -07:00
mdio-cavium.c
mdio-cavium.h
mdio-gpio.c net: mdio-gpio: Use gpio subsystem to handle low-active pins 2017-01-12 15:05:10 -05:00
mdio-hisi-femac.c
mdio-moxart.c
mdio-mux-bcm-iproc.c
mdio-mux-gpio.c
mdio-mux-mmioreg.c net: mdio-mux-mmioreg: Add support for 16bit and 32bit register sizes 2016-11-09 12:50:55 -05:00
mdio-mux.c
mdio-octeon.c
mdio-sun4i.c
mdio-thunder.c
mdio-xgene.c drivers: net: phy: xgene: Fix mdio write 2017-03-15 21:52:51 -07:00
mdio-xgene.h xgene_enet: remove bogus forward declarations 2017-02-02 17:12:20 -05:00
meson-gxl.c net: phy: Add Meson GXL Internal PHY driver 2016-11-09 12:50:55 -05:00
micrel.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-20 10:35:33 -04:00
microchip.c net: phy: switch remaining users to phy_(read|write)_mmd() 2017-03-22 12:43:00 -07:00
mscc.c net: phy: Add LED mode driver for Microsemi PHYs. 2017-02-08 13:29:04 -05:00
national.c net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause 2016-12-10 23:31:19 -05:00
phy_device.c net: phy: switch remaining users to phy_(read|write)_mmd() 2017-03-22 12:43:00 -07:00
phy_led_triggers.c net: phy: leds: Break dependency of phy.h on phy_led_triggers.h 2017-01-25 14:40:19 -05:00
phy-core.c net: phy: test the right variable in phy_write_mmd() 2017-04-17 15:10:42 -04:00
phy.c net: phy: simplify phy_supported_speeds() 2017-04-17 13:25:07 -04:00
qsemi.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
realtek.c net: phy: realtek: fix enabling of the TX-delay for RTL8211F 2016-11-28 12:06:54 -05:00
smsc.c net: break include loop netdevice.h, dsa.h, devlink.h 2017-03-28 22:46:04 -07:00
spi_ks8995.c spi_ks8995: regs_size incorrect for some devices 2017-03-07 13:33:24 -08:00
ste10Xp.c
swphy.c
swphy.h
teranetics.c
vitesse.c net: phy: vitesse: add support for VSC8572 2016-12-02 10:36:47 -05:00
xilinx_gmii2rgmii.c