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If the call to devm_spi_register_master() fails on probe of the NPCM FIU
SPI driver, the clock "fiu->clk" is erroneously not unprepared and
disabled. Fix it.
Fixes: ace55c411b11 ("spi: npcm-fiu: add NPCM FIU controller driver")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: <stable@vger.kernel.org> # v5.4+
Cc: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/9ae62f4e1cfe542bec57ac2743e6fca9f9548f55.1607286887.git.lukas@wunner.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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If the calls to of_match_device(), of_alias_get_id(),
devm_ioremap_resource(), devm_regmap_init_mmio() or devm_clk_get()
fail on probe of the NPCM FIU SPI driver, the spi_controller struct is
erroneously not freed.
Fix by switching over to the new devm_spi_alloc_master() helper.
Fixes: ace55c411b11 ("spi: npcm-fiu: add NPCM FIU controller driver")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: <stable@vger.kernel.org> # v5.4+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation
Cc: <stable@vger.kernel.org> # v5.4+
Cc: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/a420c23a363a3bc9aa684c6e790c32a8af106d17.1605512876.git.lukas@wunner.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200921131106.93228-1-miaoqinglang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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No need to redefine already existing definition.
So, replace custom by generic one.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200618170144.57433-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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drivers/spi/spi-npcm-fiu.c: In function npcm_fiu_read:
drivers/spi/spi-npcm-fiu.c:472:9: warning:
variable retlen set but not used [-Wunused-but-set-variable]
It is never used, so remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190905072436.23932-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is a spelling mistake in a dev_warning message. Fix it. Also
break line to clear up checkpatch warning.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190903122812.3986-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add Nuvoton NPCM BMC Flash Interface Unit(FIU) SPI master
controller driver using SPI-MEM interface.
The FIU supports single, dual or quad communication interface.
the FIU controller can operate in following modes:
- User Mode Access(UMA): provides flash access by using an
indirect address/data mechanism.
- direct rd/wr mode: maps the flash memory into the core
address space.
- SPI-X mode: used for an expansion bus to an ASIC or CPLD.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20190828142513.228556-3-tmaimon77@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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