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* Merge branch 'for-linus' of ↵Linus Torvalds2014-10-0829-34/+34
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull "trivial tree" updates from Jiri Kosina: "Usual pile from trivial tree everyone is so eagerly waiting for" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) Remove MN10300_PROC_MN2WS0038 mei: fix comments treewide: Fix typos in Kconfig kprobes: update jprobe_example.c for do_fork() change Documentation: change "&" to "and" in Documentation/applying-patches.txt Documentation: remove obsolete pcmcia-cs from Changes Documentation: update links in Changes Documentation: Docbook: Fix generated DocBook/kernel-api.xml score: Remove GENERIC_HAS_IOMAP gpio: fix 'CONFIG_GPIO_IRQCHIP' comments tty: doc: Fix grammar in serial/tty dma-debug: modify check_for_stack output treewide: fix errors in printk genirq: fix reference in devm_request_threaded_irq comment treewide: fix synchronize_rcu() in comments checkstack.pl: port to AArch64 doc: queue-sysfs: minor fixes init/do_mounts: better syntax description MIPS: fix comment spelling powerpc/simpleboot: fix comment ...
| * mei: fix commentsGeert Uytterhoeven2014-09-262-4/+4
| | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: "Winkler, Tomas" <tomas.winkler@intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * treewide: Fix typos in KconfigMasanari Iida2014-09-264-5/+5
| | | | | | | | | | | | | | | | This patch fix spelling typos found in Kconfig. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * treewide: fix errors in printkMasanari Iida2014-09-018-9/+9
| | | | | | | | | | | | | | | | | | This patch fix spelling typo in printk. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * paride/pcd: Fix grammarGeert Uytterhoeven2014-08-261-2/+2
| | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * cx23885: Spelling s/compuations/computations/Geert Uytterhoeven2014-08-261-1/+1
| | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Mauro Carvalho Chehab <m.chehab@samsung.com> Cc: linux-media@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * cx25840: fix commentGeert Uytterhoeven2014-08-261-1/+1
| | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Mauro Carvalho Chehab <m.chehab@samsung.com> Cc: linux-media@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * treewide: Fix typo in printkMasanari Iida2014-08-2612-12/+12
| | | | | | | | | | | | | | | | | | This patch fix spelling typo in printk within vairous part of the code. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | Merge branch 'for-linus' of ↵Linus Torvalds2014-10-082-1/+10
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/doc Pull documentation updates from Jiri Kosina: "Updates to kernel documentation. I took this over (hopefully temporarily) from Randy who was not willing to maintain it any longer. This pile mostly is a relay of queue that Randy already had in his tree" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/doc: Documentation: fix broken v4l-utils URL Documentation: update include path for mpssd Documentation: correct parameter error for dma_mapping_error MAINTAINERS: update location of linux-doc tree Documentation: remove networking/.gitignore tools: add more endian.h macros Make Documenation depend on headers_install Docs: this_cpu_ops: remove redundant add forms Documentation: disable vdso_test to avoid breakage with old glibc Documentation: update vDSO makefile to build portable examples Documentation: update .gitignore files Documentation: support glibc versions without htole macros v4l2-pci-skeleton: Only build if PCI is available Documentation: fix misc. warnings Documentation: make functions static to avoid prototype warnings Documentation: add makefiles for more targets Documentation: use subdir-y to avoid unnecessary built-in.o files
| * | Documentation: fix broken v4l-utils URLMichael Opdenacker2014-10-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | This replaces http://git.linuxtv.org/v4l-utils/ (broken link) by http://git.linuxtv.org/cgit.cgi/v4l-utils.git/ Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | v4l2-pci-skeleton: Only build if PCI is availableMark Brown2014-09-261-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently arm64 does not support PCI but it does support v4l2. Since the PCI skeleton driver is built unconditionally as a module with no dependency on PCI this causes build failures for arm64 allmodconfig. Fix this by defining a symbol VIDEO_PCI_SKELETON for the skeleton and conditionalising the build on that. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> [added VIDEO dependencies] Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Merge tag 'spi-v3.18' of ↵Linus Torvalds2014-10-0833-361/+1204
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "A quiet release for SPI, mainly driver updates and not too many of them: - Support for dummy transfers (for delays on startup) in drivers using transfer_one(). - Lots of enhancements to the Designware driver to support new Intel SoCs. - Support for newer Renesas chips. - DMA support for the i.MX driver. - One new driver for Broadcom BCM53xx chips" * tag 'spi-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (64 commits) spi: spi-mxs: fix a tiny typo in a comment spi: dw-mid: follow new DMAengine workflow spi: dw-mid: convert to use DMAengine wrappers spi: dw-mid: change magic numbers to the constants spi: orion: support armada extended baud rates spi: fsl: Sort include headers alphabetically spi: bcm53xx: Add missing module information spi: bcm53xx: Fix module dependency spi/rockchip: fix bug that cause the failure to read data in DMA mode spi: fsl-dspi: Remove probe info message spi: pl022: Add support for chip select extension spi: Fix possible ZERO_SIZE_PTR pointer dereferencing error. spi: dw: fix style of code in few places spi: dw: introduce support of loopback mode spi: dw-mid: terminate ongoing transfers at exit spi: dw-mid: respect 8 bit mode spi: clps711x: Migrate to the new clk subsystem spi: pl022: Add missing error check for devm_kzalloc spi: spi-imx: add DMA support spi: davinci: add support for adding delay between word's transmissions ...
| * \ \ Merge remote-tracking branch 'spi/topic/xilinx' into spi-nextMark Brown2014-10-031-1/+0
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| | * | | spi: xilinx: Remove .owner field for driverMichal Simek2014-08-171-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to init .owner field. Based on the patch from Peter Griffin <peter.griffin@linaro.org> "mmc: remove .owner field for drivers using module_platform_driver" This patch removes the superflous .owner field for drivers which use the module_platform_driver API, as this is overriden in platform_driver_register anyway." Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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| *-------. \ \ \ Merge remote-tracking branches 'spi/topic/pl022', 'spi/topic/pxa2xx', ↵Mark Brown2014-10-036-108/+193
| |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'spi/topic/rspi', 'spi/topic/sh-msiof' and 'spi/topic/sirf' into spi-next
| | | | | | * | | | spi: sirf: cleanup the indentation of marcosQipan Li2014-09-051-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | let "#define" statement keep same indentation. the old code layout is pretty ugly. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | | | * | | | spi: sirf: fix 'cmd_transfer' function typosQipan Li2014-09-051-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | unify 'cmd_transfer' like 'pio_transfer' and 'dma_transfer' as void function, and also change left_rx_word according to transfer result. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | | | * | | | spi: sirf: correct spi gpio and hardware chipselect behaviourQipan Li2014-09-041-53/+33
| | | | | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the old codes check the cs-gpios, if the gpio number is 0 like: <&gpio, 0, 0>, the driver will use the only hardware chipselect. this is wrong because of_spi_register_master() can read property cs-gpios from device node and set the spi master's cs number and gpio cs automatically based on whether the cs-gpios is valid. this patch fixes the beviour of CSR spi driver and move to a core level supported way. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | | * | | | spi: sh-msiof: Add support for new R-Car Gen2 SoCsGeert Uytterhoeven2014-08-281-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for MSIOF in: - r8a7792 (R-Car V2H) - r8a7793 (R-Car M2-N) - r8a7794 (R-Car E2) r8a7791 is now called "R-Car M2-W". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi: sh-msiof: Fix transmit-only DMA transfersGeert Uytterhoeven2014-08-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix tx/rx mixup, which broke transmit-only transfers. Introduced by commit 4240305f7cbdc7782aa8bc40cc702775d9ac0839 ("spi: sh-msiof: Fix leaking of unused DMA descriptors"). Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi: sh-msiof: Return early in sh_msiof_dma_once() where possibleGeert Uytterhoeven2014-08-171-9/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi: sh-msiof: Add DT support to DMA setupGeert Uytterhoeven2014-08-171-7/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi: sh-msiof: Configure DMA slave bus widthGeert Uytterhoeven2014-08-171-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new Renesas R-Car Gen2 DMA Controller driver (rcar-dmac) requires explicit configuration of the DMA slave bus width. Hardcode the DMA transfer size to 4 bytes, as MSIOF DMA is limited to 32-bit words. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | | | spi: rspi: Add support for new R-Car Gen2 SoCsGeert Uytterhoeven2014-08-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for QSPI in: - r8a7792 (R-Car V2H) - r8a7793 (R-Car M2-N) - r8a7794 (R-Car E2) r8a7791 is now called "R-Car M2-W". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | | | spi: rspi: Add DT support to DMA setupGeert Uytterhoeven2014-08-171-14/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | | | spi: rspi: Configure DMA slave bus width to 8 bitGeert Uytterhoeven2014-08-171-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new Renesas R-Car Gen2 DMA Controller driver (rcar-dmac) requires explicit configuration of the DMA slave bus width. Hardcode the DMA transfer size to 1 byte for both directions, as that's the only supported configuration (16-bit DMA support was removed in commit 9c5de2c1754c2bb3c69c4d7bf0d0edc0a61d8232 ("spi: rspi: Remove unused 16-bit DMA support")). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | | | spi: rspi: Use devm_kasprintf()Geert Uytterhoeven2014-08-171-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the devm_kasprintf() helper function instead of open coding error-prone buffer handling and string formatting. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | | | spi: rspi: Remove unneeded semicolonGeert Uytterhoeven2014-08-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduced by commit 426ef76dd8a394a0e04d096941cd9acb49539a3e ("spi: rspi: Add DT support"). Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * | | | | | spi/pxa2xx-pci: remove unnecessary assignmentAndy Shevchenko2014-08-191-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to unset driver data pointer at removal stage. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * | | | | | spi/pxa2xx-pci: Add common clock framework support in PCI glue layerChew, Chiau Ee2014-08-172-2/+21
| | | | |_|/ / / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SPI PXA2XX core layer has dependency on common clock framework to obtain information on host supported clock rate. Thus, we setup the clock device in the PCI glue layer to enable PCI mode host pass in the clock rate information. Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com> Acked-by: Kweh, Hock Leong <hock.leong.kweh@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | * | | | | | spi: pl022: Add support for chip select extensionAnders Berg2014-09-241-1/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for a extended PL022 which has an extra register for controlling up to five chip select signals. This controller is found on the AXM5516 SoC. Unfortunately the PrimeCell identification registers are identical to a standard ARM PL022. To work around this, the peripheral ID must be overridden in the device tree using the "arm,primecell-periphid" property with the value 0x000b6022. Signed-off-by: Anders Berg <anders.berg@avagotech.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
| | * | | | | | spi: pl022: Add missing error check for devm_kzallocKiran Padwal2014-09-181-0/+5
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently this driver is missing a check on the return value of devm_kzalloc, which would cause a NULL pointer dereference in a OOM situation. This patch adds a missing check. Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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| *-------. \ \ \ \ \ Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/imx', ↵Mark Brown2014-10-038-48/+442
| |\ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'spi/topic/mxs', 'spi/topic/omap-100k' and 'spi/topic/orion' into spi-next
| | | | | | * | | | | | spi: orion: support armada extended baud ratesGreg Ungerer2014-10-011-22/+94
| | | | | | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Armada SoC family implementation of this SPI hardware module has extended the configuration register to allow for a wider range of SPI clock rates. Specifically the Serial Baud Rate Pre-selection bits in the SPI Interface Configuration Register now also use bits 6 and 7 as well. Modify the baud rate calculation to handle these differences for the Armada case. Potentially a baud rate can be setup using a number of different pre-scalar and scalar combinations. This code tries all possible pre-scalar divisors (8 in total) to try and find the most accurate set. This change introduces (and documents) a new device tree compatible device name "armada-370-spi" to support this. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Reviewed-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | | * / / / / / spi: omap-100k: Remove unused definitionsNick Krause2014-08-171-4/+0
| | | | | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unused definition which cause the following warnings drivers/spi/spi-omap-100k.c:73:0: warning: "WRITE" redefined [enabled by default] include/linux/fs.h:193:0: note: this is the location of the previous definition drivers/spi/spi-omap-100k.c:74:0: warning: "READ" redefined [enabled by default] include/linux/fs.h:192:0: note: this is the location of the previous definition Signed-off-by: Nick Krause <xerofoiffy@gmail.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * / / / / / spi: spi-mxs: fix a tiny typo in a commentMichael Heimpold2014-10-031-1/+1
| | | | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Heimpold <mhei@heimpold.de> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | * / / / / / spi: spi-imx: add DMA supportRobin Gong2014-09-171-6/+280
| | | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable DMA support on i.mx6. The read speed can increase from 600KB/s to 1.2MB/s on i.mx6q. You can disable or enable dma function in dts. If not set "dma-names" in dts, spi will use PIO mode. This patch only validate on i.mx6, not i.mx5, but encourage ones to apply this patch on i.mx5 since they share the same IP. Note: Sometime, there is a weid data in rxfifo after one full tx/rx transfer finish by DMA on i.mx6dl, so we disable dma functhion on i.mx6dl. Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Robin Gong <b38343@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Mark Brown <broonie@kernel.org>
| | * | | | | | spi: fsl-dspi: Remove probe info messageAlexander Stein2014-09-251-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the probe info message which also has wrong output. No need to add KERN_INFO to pr_info. Output was: 6Freescale DSPI master initialized Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | * | | | | | Merge tag 'dt-endian' of ↵Mark Brown2014-08-271-93/+50
| | |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into spi-fsl-dspi regmap: Device tree endianness support This adds generic support for specifying endianess for register map in the DT.
| | * | | | | | | spi: fsl-dspi: Convert to use regmap framework's endianness method.Xiubo Li2014-08-181-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Acked-by: Chao Fu <b44548@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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| *-----. \ \ \ \ \ \ \ Merge remote-tracking branches 'spi/topic/davinci', 'spi/topic/doc', ↵Mark Brown2014-10-0311-142/+178
| |\ \ \ \ \ \ \ \ \ \ \ | | | | |_|_|_|/ / / / / | | | |/| | | | | | | | | | | | | | | | | | | | 'spi/topic/dw' and 'spi/topic/fsl' into spi-next
| | | | | * | | | | | | spi: fsl: Sort include headers alphabeticallyXiubo Li2014-09-295-36/+36
| | | | |/ / / / / / / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sort all the include headers alphabetically for the freescale spi drivers. If the inlcude headers sorted out of order, maybe the best logical choice is to append new ones after the exist ones, while this may create a lot of potential for duplicates and conflicts for each diffenent changes will add new headers in the same location. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | * | | | | | | spi: dw-mid: follow new DMAengine workflowAndy Shevchenko2014-10-021-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Though intel-mid-dma does not follow a new DMA workflow (*) let's prepare SPI DW driver for that. (*) The client is obliged to call dma_async_issue_pending() which starts the actual transfers. Old DMA drivers do not follow this, since requirement was introduced in the discussion of [1]. [1] http://www.spinics.net/lists/arm-kernel/msg125987.html Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | * | | | | | | spi: dw-mid: convert to use DMAengine wrappersAndy Shevchenko2014-10-021-12/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of direct dereference to dmaengine callbacks we are going to use DMAengine wrappers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | * | | | | | | spi: dw-mid: change magic numbers to the constantsAndy Shevchenko2014-10-022-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of using magic numbers in the code we create a bit map definition of the DMACR register and use it. There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | * | | | | | | spi: dw: fix style of code in few placesAndy Shevchenko2014-09-241-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make comments be surrounded by spaces and move part of code to one line where it suits 80 characters. There is no functional changes. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | * | | | | | | spi: dw: introduce support of loopback modeAndy Shevchenko2014-09-241-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For testing purposes it's good to have a loopback mode enabled. The patch adds necessary bits for that. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | * | | | | | | spi: dw-mid: terminate ongoing transfers at exitAndy Shevchenko2014-09-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do full clean up at exit, means terminate all ongoing DMA transfers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
| | | | * | | | | | | spi: dw-mid: respect 8 bit modeAndy Shevchenko2014-09-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of 8 bit mode and DMA usage we end up with every second byte written as 0. We have to respect bits_per_word settings what this patch actually does. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
| | | | * | | | | | | spi: dw: don't use mrst prefix anymoreAndy Shevchenko2014-09-131-17/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since driver is used on other platforms and debugfs stuff would be useful there as well let's substitute mrst_ by dw_ where it suits. Additionally let's use SPI master device name when print registers dump. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 14:21:09 +0100