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2016-07-14spi: s3c64xx: document the clocks and the clock-name propertyAndi Shyti
These two properties were not documented but used in the spi dts. Add the related documentation. Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Andi Shyti <andi.shyti@samsung.com> Reviewed-by: Michael Turquette <mturquette@baylibre.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-14spi: s3c64xx: add exynos5433 spi compatibleAndi Shyti
The samsung,exynos5433-spi has some peculiarities that bring the need of creating a new compatible in the binding. One of those is the 3-clocks controller management where the spi is fed with three clocks: "spi", "busclkN" and "ioclk". By adding the exynos5433-spi, we deprecate the exynos7 compatible and discourage its use. Signed-off-by: Andi Shyti <andi.shyti@samsung.com> Reviewed-by: Michael Turquette <mturquette@baylibre.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-29spi: s3c64xx: consider the case when the CS line is not connectedAndi Shyti
When the CS line is not connected, it is not needed to enable or disable the chip selection functionality from the s3c64xx devices in order to perform a transfer. Set the CS controller logically always enabled already during initialization (by writing '0' in the S3C64XX_SPI_SLAVE_SEL register) and never disable it. Signed-off-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-26spi: s3c64xx: add support for exynos7 SPI controllerPadmavathi Venna
Exynos7 SPI controller supports only the auto Selection of CS toggle mode and Exynos7 SoC includes six SPI controllers. Add support for these changes in Exynos7 SPI controller driver. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-08-08Merge tag 'cleanup-for-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "This merge window brings a good size of cleanups on various platforms. Among the bigger ones: - Removal of Samsung s5pc100 and s5p64xx platforms. Both of these have lacked active support for quite a while, and after asking around nobody showed interest in keeping them around. If needed, they could be resurrected in the future but it's more likely that we would prefer reintroduction of them as DT and multiplatform-enabled platforms instead. - OMAP4 controller code register define diet. They defined a lot of registers that were never actually used, etc. - Move of some of the Tegra platform code (PMC, APBIO, fuse, powergate) to drivers/soc so it can be shared with 64-bit code. This also converts them over to traditional driver models where possible. - Removal of legacy gpio-samsung driver, since the last users have been removed (moved to pinctrl) Plus a bunch of smaller changes for various platforms that sort of dissapear in the diffstat for the above. clps711x cleanups, shmobile header file refactoring/moves for multiplatform friendliness, some misc cleanups, etc" * tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits) drivers: CCI: Correct use of ! and & video: clcd-versatile: Depend on ARM video: fix up versatile CLCD helper move MAINTAINERS: Add sdhci-st file to ARCH/STI architecture ARM: EXYNOS: Fix build breakge with PM_SLEEP=n MAINTAINERS: Remove Kirkwood ARM: tegra: Convert PMC to a driver soc/tegra: fuse: Set up in early initcall ARM: tegra: Always lock the CPU reset vector ARM: tegra: Setup CPU hotplug in a pure initcall soc/tegra: Implement runtime check for Tegra SoCs soc/tegra: fuse: fix dummy functions soc/tegra: fuse: move APB DMA into Tegra20 fuse driver soc/tegra: Add efuse and apbmisc bindings soc/tegra: Add efuse driver for Tegra ARM: tegra: move fuse exports to soc/tegra/fuse.h ARM: tegra: export apb dma readl/writel ARM: tegra: Use a function to get the chip ID ARM: tegra: Sort includes alphabetically ARM: tegra: Move includes to include/soc/tegra ...
2014-08-04Merge remote-tracking branches 'spi/fix/s3c64xx', 'spi/fix/samsung' and ↵Mark Brown
'spi/fix/xilinx' into spi-linus
2014-07-17spi: s3c64xx: Update binding documentationNaveen Krishna Chatradhi
Samsung SPI driver now uses the generic SPI "cs-gpios" binding so update the documentation accordingly. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> [javier.martinez@collabora.co.uk: split changes and improve commit message] Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-11spi: samsung: Update binding documentationSachin Kamat
Samsung SPI driver uses generic DMA bindings. Update the documentation accordingly. Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-08spi: s3c64xx: remove s5p64x0 related spi codesKukjin Kim
This patch removes s5p64x0 related spi because of no more support for s5p64x0 SoCs. Meanwhile, cleanup SPI DT bindings for s5p6440-spi, it should be s5p64x0-spi instead. Cc: Mark Brown <broonie@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-04-16spi/s3c64xx: let device core setup the default pin configurationThomas Abraham
With device core now able to setup the default pin configuration, the pin configuration code based on the deprecated Samsung specific gpio bindings is removed. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Grant Likely <grant.likely@linaro.org>
2012-07-17ARM: EXYNOS: mark the DMA channel binding for SPI as preliminaryArnd Bergmann
Bindings for DMA channels are still under discussion and will change once this has been resolved. Therefore we mark them the newly added ones as preliminary. Let's hope nobody starts relying on them... Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-13spi: s3c64xx: add device tree supportThomas Abraham
Add support for device based discovery. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>