This patch fixes the calculation for determining whether to use FIFO or BLOCK
mode.
Signed-off-by: NAndy Gross <agross@codeaurora.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Reviewed-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

pm_runtime_get_sync() returns 1 if !CONFIG_PM_RUNTIME.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Current code uses struct spi_qup_device to store spi->mode and spi->chip_select
settings. We can get these settings in spi_qup_transfer_one and spi_qup_set_cs
without using struct spi_qup_device. Refactor the code a bit to remove
spi_qup_setup(), spi_qup_cleanup(), and struct spi_qup_device.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Tested-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

The module version is unlikely to be updated, use kernel version should be
enough.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Fix below build error when CONFIG_PM_RUNTIME=y:

C [M]  drivers/spi/spi-qup.o
drivers/spi/spi-qup.c: In function 'spi_qup_pm_suspend_runtime':
drivers/spi/spi-qup.c:712:12: error: 'QUP_CLOCK_AUTO_GATE' undeclared (first use in this function)
drivers/spi/spi-qup.c:712:12: note: each undeclared identifier is reported only once for each function it appears in
drivers/spi/spi-qup.c: In function 'spi_qup_pm_resume_runtime':
drivers/spi/spi-qup.c:725:13: error: 'QUP_CLOCK_AUTO_GATE' undeclared (first use in this function)
make[2]: *** [drivers/spi/spi-qup.o] Error 1
make[1]: *** [drivers/spi] Error 2
make: *** [drivers] Error 2
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Set master->max_speed_hz then spi core will handle checking transfer speed.
So we can remove the same checking in this driver.

Also remove checking spi->chip_select in spi_qup_setup(), the checking is done
by spi core.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

This driver uses devm_spi_register_master() so don't explicitly call
spi_master_put() in spi_qup_remove().
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Qualcomm Universal Peripheral (QUP) core is an AHB slave that
provides a common data path (an output FIFO and an input FIFO)
for serial peripheral interface (SPI) mini-core. SPI in master
mode supports up to 50MHz, up to four chip selects, programmable
data path from 4 bits to 32 bits and numerous protocol variants.

Cc: Alok Chauhan <alokc@codeaurora.org>
Cc: Gilad Avidov <gavidov@codeaurora.org>
Cc: Kiran Gunda <kgunda@codeaurora.org>
Cc: Sagar Dharia <sdharia@codeaurora.org>
Cc: dsneddon@codeaurora.org
Signed-off-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NMark Brown <broonie@linaro.org>