Stefan Wahren b83bd893f3 pinctrl: bcm2835: reduce GPPUD set-up time ... Since the BCM2835 datasheet doesn't exactly specify the set-up time for the GPIO Pull-up/down Clock Registers there was an assumption of 150 cycles at a clock rate of 1 MHz. During a discussion [1] in the Raspberry Pi forum it turns out that clock rate refers to the VPU which has a rate of 250 MHz. So we can reduce the delay to a sensible value and update the comment above. I tested this optimization with a Raspberry Pi B and a multimeter. [1] - https://www.raspberrypi.org/forums/viewtopic.php?f=72&t=163352 Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>		2016-11-04 16:28:28 +01:00
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Kconfig	pinctrl: bcm: add OF dependencies	2016-07-22 16:43:32 +02:00
Makefile	pinctrl: nsp: add pinmux driver support for Broadcom NSP SoC	2016-06-29 10:06:00 +02:00
pinctrl-bcm281xx.c	pinctrl: bcm281xx: constify pinctrl_ops and pinmux_ops structures	2016-09-07 22:41:30 +02:00
pinctrl-bcm2835.c	pinctrl: bcm2835: reduce GPPUD set-up time	2016-11-04 16:28:28 +01:00
pinctrl-cygnus-mux.c	pinctrl: cygnus-mux: Use devm_pinctrl_register() for pinctrl registration	2016-04-21 00:02:00 +02:00
pinctrl-iproc-gpio.c	pinctrl: iproc: Add NSP and Stingray GPIO support	2016-07-22 16:47:51 +02:00
pinctrl-ns2-mux.c	pinctrl: ns2: constify pinctrl_ops and pinmux_ops structures	2016-09-07 22:39:44 +02:00
pinctrl-nsp-gpio.c	pinctrl: nsp-gpio: fix non-static functions	2016-06-08 14:09:49 +02:00
pinctrl-nsp-mux.c	pinctrl: nsp: constify pinctrl_ops and pinmux_ops structures	2016-09-07 22:40:40 +02:00