On 24 April 2016 at 17:32, Eric Nelson eric@nelint.com wrote:
Many drivers use a common form of offset + flags for device tree nodes. e.g.: <&gpio1 2 GPIO_ACTIVE_LOW>
This patch adds a common implementation of this type of parsing and calls it when a gpio driver doesn't supply its' own xlate routine.
This will allow removal of the driver-specific versions in a handful of drivers and simplify the addition of new drivers.
Signed-off-by: Eric Nelson eric@nelint.com Reviewed-by: Stephen Warren swarren@nvidia.com
V2 removes parsing of offset from the gpio_find_and_xlate routine, and only parses the offset and GPIO_ACTIVE_LOW flag when a driver-specific xlate is unavailable.
V3 re-works tests of the argument count as suggested by Stephen Warren and will allow parsing of nodes with no flags field: <&gpio1 2>
V4 fixes an indent with spaces instead of tabs
drivers/gpio/gpio-uclass.c | 30 +++++++++++++++++++++++------- include/asm-generic/gpio.h | 19 ++++++++++++++----- 2 files changed, 37 insertions(+), 12 deletions(-)
Acked-by: Simon Glass sjg@chromium.org