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2018-09-05spi: Do not print a message if spi_controller_{suspend,resume}() failsGeert Uytterhoeven5-30/+7
spi_controller_{suspend,resume}() already prints an error message on failure, so there is no need to repeat this in individual drivers. Note: spi_master_{suspend,resume}() is an alias for spi_controller_{suspend,resume}(). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Daniel Mack <daniel@zonque.org> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-04spi: spidev_test: Improve decoded text part of hex dumpGeert Uytterhoeven1-3/+3
- Print spaces as spaces, - Do not print characters > 126, as they will be shown as garbage in the modern UTF-8 era, - Use a normal period instead of its hexadecimal ASCII value, - Delimit the text part with pipe symbols on both sides (was left side only), without any spaces, to make it clear where the decoded text starts and ends, - Drop a useless comment. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-04spi: sh-msiof: Document R-Car E3 supportGeert Uytterhoeven1-0/+1
Document support for the MSIOF module in the Renesas R-Car E3 (r8a77990) SoC. No driver update is needed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-04spi: sh-msiof: Document R-Car D3 supportUlrich Hecht1-0/+1
Document support for the MSIOF module in the Renesas R-Car D3 (r8a77995) SoC. No driver update is needed. Signed-off-by: Ulrich Hecht <uli+renesas@fpond.eu> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-03spi: orion: cosmetics - alias long direct_access variablesKosta Zertsekel1-11/+11
This change increases the source code readability. Instead of using `spi->child[cs].direct_access.XXX` use `dir_acc->XXX`. Instead of using `orion_spi->child[cs].direct_access.vaddr` use `vaddr`. Signed-off-by: Kosta Zertsekel <zertsekel@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-31spi: dw-mmio: avoid hardcoded field maskAlexandre Belloni1-1/+2
Define a mask for the IF_SI_OWNER field. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-30spi: davinci: remove set but not used variable 'pdata'YueHaibing1-2/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/spi/spi-davinci.c: In function 'davinci_spi_chipselect': drivers/spi/spi-davinci.c:211:36: warning: variable 'pdata' set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-29spi: dw-mmio: add MSCC Jaguar2 supportAlexandre Belloni1-6/+22
Unfortunately, the Jaguar2 CPU_SYSTEM_CTRL register set has a different layout than the Ocelot one. Handle that while keeping most of the code common. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-29spi: Introduce one new field to set word delayBaolin Wang1-0/+3
For some SPI controllers, after each word size (specified by bits_per_word) transimission, the hardware need some delay to make sure the slave has enough time to receive the whole data. So introducing one new 'word_delay' field of struct spi_tansfer for slave devices to set this inter word delay time. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-28spi: sh-msiof: Add r8a774a1 supportFabrizio Castro1-1/+2
Document RZ/G2M (R8A774A1) SoC bindings. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-28spi: sprd: Add SPI driver for Spreadtrum SC9860Lanqing Liu3-0/+752
This patch adds the SPI controller driver for Spreadtrum SC9860 platform. Signed-off-by: Lanqing Liu <lanqing.liu@spreadtrum.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>