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This patch fixes the following build error introduced by commit
65308c46, "spi/topcliff: cleanup for style and conciseness".
drivers/spi/spi_topcliff_pch.c: In function 'pch_spi_process_messages':
drivers/spi/spi_topcliff_pch.c:752: warning: 'data' is used uninitialized in
+this function
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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This patch makes multiple cleanups to the new topcliff pch spi driver
including, but not limited to,
- removing superfluous brackets around variables
- open coding functions that are only used once
- removing unnecessary line breaks
- removing unused functions
- simplifying the interrupt enable/disable code
- remove unnecessary (void *) casts.
- remove b_mem_fail from pch_spi_set_tx to code it more cleanly
- shorten dev_dbg() messages for conciseness and readability
More cleanups are still needed in this driver. In particular,
- the driver filename should be changed to spi_topcliff_pch.c
- many of the dev_dbg() lines should be trimmed (particularly the ones
on unconditional code paths).
- I suspect that the locking model not correct. I'd like to know what
drivers' critical regions are, and how they are protected.
- get_resources and release_resources probably should be open coded in
.probe and .release respectively.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Topcliff PCH is the platform controller hub that is going to be used
in Intel's upcoming general embedded platform. All IO peripherals in
Topcliff PCH are actually devices sitting on AMBA bus. This patch
adds a driver for the SPI bus integrated into the Topcliff device.
Signed-off-by: Masayuki Ohtake <masa-korg@dsn.okisemi.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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