On Wed, Feb 26, 2014 at 03:59:24PM -0700, Simon Glass wrote: > Add driver model support for GPIOs. Since existing GPIO drivers do not use > driver model, this feature must be enabled by CONFIG_DM_GPIO. After all > GPO drivers are converted over we can perhaps remove this config. > > Tests are provided for the sandbox implementation, and are a sufficient > sanity check for basic operation. > > The GPIO uclass understands the concept of named banks of GPIOs, with each > GPIO device providing a single bank. Within each bank the GPIOs are numbered > using an offset from 0 to n-1. For example a bank named 'b' with 20 > offsets will provide GPIOs named b0 to b19. > > Anonymous GPIO banks are also supported, and are just numbered without any > prefix. > > Each time a GPIO driver is added to the uclass, the GPIOs are renumbered > accordinging, so there is always a global GPIO numbering order. > > Signed-off-by: Simon Glass <s...@chromium.org> > Signed-off-by: Marek Vasut <ma...@denx.de> > Signed-off-by: Pavel Herrmann <morpheus.i...@gmail.com> > Signed-off-by: Viktor Křivák <viktor.kri...@gmail.com> > Signed-off-by: Tomas Hlavacek <tmshl...@gmail.com>
Applied to u-boot/master, thanks! -- Tom
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