forked from Minki/linux
dd0cb7dbb0
On some systems (such as the Qualcomm APQ8060 Dragonboard) the RESET signal of the SMSC911x is not pulled up by a resistor (or the internal pull-up that will pull it up if the pin is not even connected) but instead connected to a GPIO line, so that the operating system must explicitly deassert RESET before use. Support this in the SMSC911x driver so this ethernet connector can be used on such targets. Notice that we request the line to go logical low (deassert) whilst the line on the actual component is active low. This is managed in the respective hardware description when specifying the GPIO line with e.g. device tree or ACPI. With device tree it looks like this in one case: reset-gpios = <&tlmm 30 GPIO_ACTIVE_LOW>; Which means that logically requesting the RESET line to be deasserted will result in the line being driven high, taking the device out of reset. Cc: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| appletalk | ||
| arcnet | ||
| bonding | ||
| caif | ||
| can | ||
| cris | ||
| dsa | ||
| ethernet | ||
| fddi | ||
| fjes | ||
| hamradio | ||
| hippi | ||
| hyperv | ||
| ieee802154 | ||
| ipvlan | ||
| irda | ||
| phy | ||
| plip | ||
| ppp | ||
| slip | ||
| team | ||
| usb | ||
| vmxnet3 | ||
| wan | ||
| wimax | ||
| wireless | ||
| xen-netback | ||
| dummy.c | ||
| eql.c | ||
| geneve.c | ||
| gtp.c | ||
| ifb.c | ||
| Kconfig | ||
| LICENSE.SRC | ||
| loopback.c | ||
| macsec.c | ||
| macvlan.c | ||
| macvtap.c | ||
| Makefile | ||
| mdio.c | ||
| mii.c | ||
| netconsole.c | ||
| nlmon.c | ||
| ntb_netdev.c | ||
| rionet.c | ||
| sb1000.c | ||
| Space.c | ||
| sungem_phy.c | ||
| tun.c | ||
| veth.c | ||
| virtio_net.c | ||
| vrf.c | ||
| vxlan.c | ||
| xen-netfront.c | ||