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This reverts commit 314fd52f01ead9528a5cda5a868425bb736d93a2.
It turns .h files into non-stand-alone when building, which might cause
problems in the long-run.
Reported-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Cc: Muhammad Usama Anjum <musamaanjum@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Many header files have been included, but never used. Those header
files have been removed.
Signed-off-by: Muhammad Usama Anjum <musamaanjum@gmail.com>
Link: https://lore.kernel.org/r/20210211143637.GA177425@LEGION
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Most of the files have been modified in 2020, so update the copyright
notices.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20201007101943.749898-6-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When the chip starts in SDIO mode, the external IRQ (aka Out-Of-Band
IRQ) cannot be used before to configure it. Therefore, the first
exchanges with the chip have to be done without the OOB IRQ.
This patch allow to poll the data until the OOB IRQ is correctly setup.
In order to keep the code simpler, this patch also poll data even if OOB
IRQ is not used.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200505123757.39506-9-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix warning of lines over 80 characters.
Issue detected by checkpatch tool.
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Link: https://lore.kernel.org/r/20191019140719.2542-3-jbi.octave@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Introduce bus level communication layer. At this level, 7 registers can
be addressed.
Notice that SPI driver is able to manage chip reset. SDIO mode relies
on an external driver (`mmc-pwrseq`) to reset chip.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-3-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instantiate build infrastructure WFx driver. This driver provides support
for Wifi chipset Silicon Labs WF200 and further:
https://www.silabs.com/documents/public/data-sheets/wf200-datasheet.pdf
This chip support SPI and SDIO bus.
SDIO interface has two particularities:
1. Some parameters may be useful for end user (I will talk about
gpio_wakeup later).
2. The SDIO VID and PID of WF200 are 0000:0001 which are too much
generic to rely on.
So, current code checks VID/PID and looks for a node in DT (since WF200
targets embedded platforms, I don't think it is a problem to rely on
DT). DT can also be used to define to parameters for driver. Currently,
if no node is found, a warning is emitted, but it could be changed in
error.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-2-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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