linux/include
Ludovic Desroches ff10e353a4 pinctrl: at91-pio4: add support for drive strength
Add support for the drive strength configuration. Usually, this value is
expressed in mA. Since the numeric value depends on VDDIOP voltage, a
value we can't retrieve at runtime, the controller uses low, medium and
high to define the drive strength.

The PIO controller accepts two values for the low drive configuration: 0
and 1. Most of the time, we don't care about the drive strength. So we
keep the default value which is 0. The drive strength is advertised
through the sysfs only when it has been explicitly set in the device
tree i.e. if its value is different from 0.

Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-07-16 14:46:11 +02:00
..
acpi Additional ACPI updates for 4.18-rc1 2018-06-13 07:32:10 -07:00
asm-generic int-ll64.h: define u{8,16,32,64} and s{8,16,32,64} based on uapi header 2018-06-07 17:34:38 -07:00
clocksource
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-06-05 15:51:21 -07:00
drm drm for v4.18-rc1 2018-06-06 08:16:33 -07:00
dt-bindings pinctrl: at91-pio4: add support for drive strength 2018-07-16 14:46:11 +02:00
keys docs: Fix some broken references 2018-06-15 18:10:01 -03:00
kvm
linux pinctrl: Document pin_config_group_get() return codes like pin_config_get() 2018-07-09 13:09:21 +02:00
math-emu
media media: v4l2-core: push taking ioctl mutex down to ioctl handler 2018-05-28 16:31:44 -04:00
memory
misc ocxl: Expose the thread_id needed for wait on POWER9 2018-06-03 20:40:32 +10:00
net sctp: define sctp_packet_gso_append to build GSO frames 2018-06-14 10:25:53 -07:00
pcmcia
ras
rdma Convert infiniband uverbs to struct_size 2018-06-12 16:19:22 -07:00
scsi SCSI misc on 20180610 2018-06-10 13:01:12 -07:00
soc ARM: SoC: late updates 2018-06-11 18:19:45 -07:00
sound sound updates for 4.18 2018-06-06 09:08:38 -07:00
target
trace NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00
uapi Solve a series of broken links for files under Documentation: 2018-06-17 05:25:18 +09:00
video fbdev changes for v4.18: 2018-06-17 05:00:24 +09:00
xen docs: Fix some broken references 2018-06-15 18:10:01 -03:00