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Author SHA1 Message Date
Axel Lin c0c374024d gpio: spear_gpio: Fix gpio_set_value() implementation 
In current gpio_set_value() implementation, it always sets the gpio control bit
no matter the value argument is 0 or 1. Thus the GPIOs never set to low.
This patch fixes this bug.

The address bus is used as a mask on read/write operations, so that independent
software drivers can set their GPIO bits without affecting any other pins in a
single write operation. Thus we don't need a read-modify-write to update the
register.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stefan Roese <sr@denx.de>
Reviewed-by: Vipin Kumar <vipin.kumar@st.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
 2014-07-04 21:37:29 +02:00
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
 2013-07-24 09:44:38 -04:00
Stefan Roese 2cb06a4fda GPIO: Add SPEAr GPIO driver 
Tested on x600 (SPEAr600).

Signed-off-by: Stefan Roese <sr@denx.de>
 2012-07-07 14:07:42 +02:00