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When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
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Update this driver and key_matrix to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
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[trini: Applied v1 of the series rather than v2, this commit is the
delta from v1 to v2]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Rini <trini@ti.com>
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We know the exact property names that the code wants to process. Look
these up directly with fdt_get_property(), rather than iterating over
all properties within the node, and checking each property's name, in
a convoluted fashion, against the expected name.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Initialized character arrays on the stack can cause gcc to emit code that
performs unaligned accessess. Make the data static to avoid this.
Note that the unaligned accesses are made when copying data to prefix[] on
the stack from .rodata. By making the data static, the copy is completely
avoided. All explicitly written code treats the data as u8[], so will never
cause any unaligned accesses.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
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These are read from the fdt - add a debug feature to display the mapping
on start-up.
See that we get debug output listing the keycodes
Signed-off-by: Simon Glass <sjg@chromium.org>
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Some keyboards will not need a key ghosting filter, so make this feature
optional.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Some issues with this were not addressed in the previous series. Fix up
the binding decoding to deal with what is actually expected in the fdt.
This corrects the broken keyboard on seaboard.
Signed-off-by: Simon Glass <sjg@chromium.org>
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On Microblaze with device tree support enabled we run into
the error below.
I'm not sure, but I think that all source code should include
at least the common.h and just this fix the problem on
Microblaz architecture.
The error is:
In file included from key_matrix.c:29:
include/malloc.h:364: error: conflicting types for 'memset'
include/linux/string.h:71: error: previous declaration of 'memset' was here
include/malloc.h:365: error: conflicting types for 'memcpy'
include/linux/string.h:74: error: previous declaration of 'memcpy' was here
Signed-off-by: Stephan Linz <linz@li-pro.net>
CC: Bernie Thompson <bhthompson@chromium.org>
CC: Simon Glass <sjg@chromium.org>
CC: Tom Warren <twarren@nvidia.com>
CC: Michal Simek <monstr@monstr.eu>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Michal Simek <monstr@monstr.eu>
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Matrix keyboards require a key map to be set up, and must also deal with
key ghosting.
Create a keyboard matrix management implementation which can be leveraged
by various keyboard drivers. This includes code to read the keymap from
the FDT and perform debouncing.
Signed-off-by: Bernie Thompson <bhthompson@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
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