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Signed-off-by: Xiaobo Xie <xiaobo.xie@nxp.com>
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commit c0368e4db4a3e8a3dce40f3f621c06e14c560d79 upstream.
There was an inversion in how the error path in bcm_qspi_probe() is done
which would make us trip over a KASAN use-after-free report. Turns out
that qspi->dev_ids does not get allocated until later in the probe
process. Fix this by introducing a new lable: qspi_resource_err which
takes care of cleaning up the SPI master instance.
Fixes: fa236a7ef240 ("spi: bcm-qspi: Add Broadcom MSPI driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch renames the SPINOR_OP_* macros of the 4-byte address
instruction set so the new names all share a common pattern: the 4-byte
address name is built from the 3-byte address name appending the "_4B"
suffix.
The patch also introduces new op codes to support other SPI protocols
such
as SPI 1-4-4 and SPI 1-2-2.
This is a transitional patch and will help a later patch of spi-nor.c
to automate the translation from the 3-byte address op codes into their
4-byte address version.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
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This spi driver uses the common spi-bcm-qspi driver and implements iProc
SoCs specific interrupt controller. The common driver now calls the SoC
handlers when present. Adding support for both muxed l1 and unmuxed interrupt
sources.
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: fa236a7ef240 ("spi: bcm-qspi: Add Broadcom MSPI driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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In case of error, the function kcalloc() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.
Fixes: fa236a7ef240 ("spi: bcm-qspi: Add Broadcom MSPI driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The two power management functions are define inside of an #ifdef
but referenced unconditionally, which is obviously broken when
CONFIG_PM_SLEEP is not set:
drivers/spi/spi-bcm-qspi.c:1300:13: error: 'bcm_qspi_suspend' undeclared here (not in a function)
drivers/spi/spi-bcm-qspi.c:1301:13: error: 'bcm_qspi_resume' undeclared here (not in a function)
This replaces the #ifdef with a __maybe_unused annotation that lets
the compiler figure out whether to drop the functions itself,
and uses SIMPLE_DEV_PM_OPS() to refer to the functions.
This will also fill the freeze/thaw/poweroff/restore callback
pointers in addition to suspend/resume, but as far as I can tell,
this is what we want.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: fa236a7ef240 ("spi: bcm-qspi: Add Broadcom MSPI driver")
Signed-off-by: Mark Brown <broonie@kernel.org>
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The header isn't actually needed here, but including it leads
to a build warning when CONFIG_MTD is disabled:
include/linux/mtd/cfi.h:76:2: #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. [-Werror=cpp]
Fixes: fa236a7ef240 (spi: bcm-qspi: Add Broadcom MSPI driver)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This change implements BSPI driver for Broadcom BRCMSTB, NS2,
NSP SoCs works in combination with the MSPI controller driver
and implements flash read acceleration and implements the
spi_flash_read() method. Both MSPI and BSPI controllers are
needed to access spi-nor flash.
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Master SPI driver for Broadcom settop, iProc SoCs. The driver
is used for devices that use SPI protocol on BRCMSTB, NSP, NS2
SoCs. SoC platform driver call exported porbe(), remove()
and suspend/resume pm_ops implemented in this common driver.
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Yendapally Reddy Dhananjaya Reddy
Signed-off-by: Mark Brown <broonie@kernel.org>
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