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path: root/drivers/spi/Kconfig
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2014-12-08Merge remote-tracking branches 'spi/topic/mxs', 'spi/topic/pxa', ↵Mark Brown
'spi/topic/rockchip', 'spi/topic/samsung' and 'spi/topic/sirf' into spi-next
2014-12-08Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/fsl-espi', ↵Mark Brown
'spi/topic/gpio', 'spi/topic/img-spfi' and 'spi/topic/meson' into spi-next
2014-11-27spi: meson: Select REGMAP_MMIOBeniamino Galvani
The Meson SPIFC driver uses regmap mmio functions and so it must select REGMAP_MMIO to avoid the following build error: spi-meson-spifc.c: undefined reference to `devm_regmap_init_mmio_clk' Reported-by: Jim Davis <jim.epost@gmail.com> Signed-off-by: Beniamino Galvani <b.galvani@gmail.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>
2014-11-24spi: meson: Add support for Amlogic Meson SPIFCBeniamino Galvani
This is a driver for the Amlogic Meson SPIFC (SPI flash controller), which is one of the two SPI controllers available on the SoC. It doesn't support DMA and has a 64-byte unified transmit/receive buffer. The device is optimized for interfacing with SPI NOR memories and allows the execution of standard operations such as read, page program, sector erase, etc. in a simplified way, toggling a bit in a dedicated register. The driver doesn't use those predefined commands and relies only on custom transfers. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-17spi: Add driver for IMG SPFI controllerAndrew Bresticker
Add support for the Synchronous Peripheral Flash Interface (SPFI) master controller found on IMG SoCs. The SPFI controller supports 5 chip-select lines and single/dual/quad mode SPI transfers. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-03Merge remote-tracking branches 'spi/topic/pl022', 'spi/topic/pxa2xx', ↵Mark Brown
'spi/topic/rspi', 'spi/topic/sh-msiof' and 'spi/topic/sirf' into spi-next
2014-10-03Merge remote-tracking branches 'spi/topic/davinci', 'spi/topic/doc', ↵Mark Brown
'spi/topic/dw' and 'spi/topic/fsl' into spi-next
2014-10-03Merge remote-tracking branches 'spi/topic/bcm53xx', 'spi/topic/cadence', ↵Mark Brown
'spi/topic/checkpatch' and 'spi/topic/clps711x' into spi-next
2014-09-26spi: bcm53xx: Fix module dependencyAxel Lin
config SPI_BCM53XX needs to depend on BCMA_POSSIBLE and select BCMA. This fixes below build error: ERROR: "bcma_driver_unregister" [drivers/spi/spi-bcm53xx.ko] undefined! ERROR: "__bcma_driver_register" [drivers/spi/spi-bcm53xx.ko] undefined! Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-13spi: dw-mid: remove Moorestown supportAndy Shevchenko
The support of the Moorestown was removed [1] from kernel long time ago. This is just a follow up of that change. [1] http://www.spinics.net/lists/platform-driver-x86/msg02948.html Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-08-31spi/drivers: Restrict COMPILE_TEST by HAS_DMA where neededGeert Uytterhoeven
commit dd1053a93fdc11d4 ("spi/drivers: Enable build of drivers with COMPILE_TEST") allows compile-testing drivers on platforms they're not meant for. However, adding "|| COMPILE_TEST" bypasses all other implicit dependencies assumed by the platform dependencies before, like HAS_DMA. If NO_DMA=y: drivers/built-in.o: In function `atmel_spi_dma_unmap_xfer': drivers/spi/spi-atmel.c:915: undefined reference to `dma_unmap_single' drivers/spi/spi-atmel.c:918: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `atmel_spi_next_xfer_data': drivers/spi/spi-atmel.c:690: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `atmel_spi_dma_map_xfer': drivers/spi/spi-atmel.c:890: undefined reference to `dma_map_single' drivers/spi/spi-atmel.c:893: undefined reference to `dma_mapping_error' drivers/spi/spi-atmel.c:897: undefined reference to `dma_map_single' drivers/spi/spi-atmel.c:900: undefined reference to `dma_mapping_error' drivers/spi/spi-atmel.c:902: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `atmel_spi_probe': drivers/spi/spi-atmel.c:1540: undefined reference to `dma_alloc_coherent' drivers/spi/spi-atmel.c:1623: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `atmel_spi_remove': drivers/spi/spi-atmel.c:1665: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `ep93xx_spi_dma_finish': drivers/spi/spi-ep93xx.c:550: undefined reference to `dma_unmap_sg' drivers/built-in.o: In function `ep93xx_spi_dma_prepare': drivers/spi/spi-ep93xx.c:516: undefined reference to `dma_map_sg' drivers/spi/spi-ep93xx.c:522: undefined reference to `dma_unmap_sg' drivers/built-in.o: In function `omap2_mcspi_rx_dma': drivers/spi/spi-omap2-mcspi.c:475: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `omap2_mcspi_txrx_dma': drivers/spi/spi-omap2-mcspi.c:589: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `omap2_mcspi_transfer_one_message': drivers/spi/spi-omap2-mcspi.c:1202: undefined reference to `dma_map_single' drivers/spi/spi-omap2-mcspi.c:1204: undefined reference to `dma_mapping_error' drivers/spi/spi-omap2-mcspi.c:1211: undefined reference to `dma_map_single' drivers/spi/spi-omap2-mcspi.c:1213: undefined reference to `dma_mapping_error' drivers/spi/spi-omap2-mcspi.c:1217: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `tegra_spi_deinit_dma_param': drivers/spi/spi-tegra114.c:675: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `tegra_spi_copy_spi_rxbuf_to_client_rxbuf': drivers/spi/spi-tegra114.c:415: undefined reference to `dma_sync_single_for_cpu' drivers/spi/spi-tegra114.c:440: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_spi_copy_client_txbuf_to_spi_txbuf': drivers/spi/spi-tegra114.c:381: undefined reference to `dma_sync_single_for_cpu' drivers/spi/spi-tegra114.c:405: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_spi_start_dma_based_transfer': drivers/spi/spi-tegra114.c:543: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_slink_deinit_dma_param': drivers/spi/spi-tegra20-slink.c:705: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `tegra_slink_copy_spi_rxbuf_to_client_rxbuf': drivers/spi/spi-tegra20-slink.c:427: undefined reference to `dma_sync_single_for_cpu' drivers/spi/spi-tegra20-slink.c:452: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_slink_copy_client_txbuf_to_spi_txbuf': drivers/spi/spi-tegra20-slink.c:393: undefined reference to `dma_sync_single_for_cpu' drivers/spi/spi-tegra20-slink.c:417: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_slink_start_dma_based_transfer': drivers/spi/spi-tegra20-slink.c:561: undefined reference to `dma_sync_single_for_cpu' Add dependencies on HAS_DMA to fix this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-08-19spi: bcm53xx: driver for SPI controller on Broadcom bcma SoCRafał Miłecki
Broadcom 53xx ARM SoCs use bcma bus that contains various cores (AKA devices). If board has a serial flash, it's connected over SPI and the bcma bus includes a SPI controller. Example log from such a board: bus0: Found chip with id 53010, rev 0x00 and package 0x02 (...) bus0: Core 18 found: SPI flash controller (manuf 0x4BF, id 0x50A, rev 0x01, class 0x0) This patch adds a bcma driver for SPI core, it registers SPI master controller and "bcm53xxspiflash" SPI device. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-16spi/pxa2xx-pci: Add common clock framework support in PCI glue layerChew, Chiau Ee
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>
2014-08-04Merge remote-tracking branches 'spi/topic/sh', 'spi/topic/sh-msiof' and ↵Mark Brown
'spi/topic/topcliff-pch' into spi-next
2014-08-04Merge remote-tracking branches 'spi/topic/orion', 'spi/topic/pl022', ↵Mark Brown
'spi/topic/qup', 'spi/topic/rockchip' and 'spi/topic/rspi' into spi-next
2014-07-10spi: rspi: Relax DMA dependency and increase build coverageGeert Uytterhoeven
As of commit ab116a4df4942c78c189d9b0744dd940ab9e00b9 ("dmaengine: shdma: fix a build failure on platforms with no DMA support"), the DMA filter function shdma_chan_filter() is sufficiently abstracted to allow building without DMA support. Hence drop the SH_DMAE_BASE dependency on SUPERH. Also increase build coverage by allowing the driver to be enabled if COMPILE_TEST=y. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-10spi: sh-msiof: SPI_SH_MSIOF should depend on HAS_DMAGeert Uytterhoeven
If NO_DMA=y: drivers/built-in.o: In function `sh_msiof_release_dma': spi-sh-msiof.c:(.text+0x23cbfe): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `sh_msiof_request_dma': spi-sh-msiof.c:(.text+0x23cd5e): undefined reference to `dma_map_single' spi-sh-msiof.c:(.text+0x23cd70): undefined reference to `dma_mapping_error' spi-sh-msiof.c:(.text+0x23cdca): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `sh_msiof_dma_once': spi-sh-msiof.c:(.text+0x23d450): undefined reference to `dma_sync_single_for_cpu' spi-sh-msiof.c:(.text+0x23d5ea): undefined reference to `dma_sync_single_for_cpu' Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-05spi/rockchip: Add dependencies on relaxed I/O accessorsMark Brown
Without the dependencies for the accessors the driver can be enabled on architectures where it will fail to build. Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-04spi/rockchip: add driver for Rockchip RK3xxx SoCs integrated SPIaddy ke
In order to facilitate understanding, rockchip SPI controller IP design looks similar in its registers to designware. But IC implementation is different from designware, So we need a dedicated driver for Rockchip RK3XXX SoCs integrated SPI. The main differences: - dma request line: rockchip SPI controller have two DMA request line for tx and rx. - Register offset: RK3288 dw SPI_CTRLR0 0x0000 0x0000 SPI_CTRLR1 0x0004 0x0004 SPI_SSIENR 0x0008 0x0008 SPI_MWCR NONE 0x000c SPI_SER 0x000c 0x0010 SPI_BAUDR 0x0010 0x0014 SPI_TXFTLR 0x0014 0x0018 SPI_RXFTLR 0x0018 0x001c SPI_TXFLR 0x001c 0x0020 SPI_RXFLR 0x0020 0x0024 SPI_SR 0x0024 0x0028 SPI_IPR 0x0028 NONE SPI_IMR 0x002c 0x002c SPI_ISR 0x0030 0x0030 SPI_RISR 0x0034 0x0034 SPI_TXOICR NONE 0x0038 SPI_RXOICR NONE 0x003c SPI_RXUICR NONE 0x0040 SPI_MSTICR NONE 0x0044 SPI_ICR 0x0038 0x0048 SPI_DMACR 0x003c 0x004c SPI_DMATDLR 0x0040 0x0050 SPI_DMARDLR 0x0044 0x0054 SPI_TXDR 0x0400 NONE SPI_RXDR 0x0800 NONE SPI_IDR NONE 0x0058 SPI_VERSION NONE 0x005c SPI_DR NONE 0x0060 - register configuration: such as SPI_CTRLRO in rockchip SPI controller: cr0 = (CR0_BHT_8BIT << CR0_BHT_OFFSET) | (CR0_SSD_ONE << CR0_SSD_OFFSET); cr0 |= (rs->n_bytes << CR0_DFS_OFFSET); cr0 |= ((rs->mode & 0x3) << CR0_SCPH_OFFSET); cr0 |= (rs->tmode << CR0_XFM_OFFSET); cr0 |= (rs->type << CR0_FRF_OFFSET); For more information, see RK3288 chip manual. - Wait for idle: Must ensure that the FIFO data has been sent out before the next transfer. Signed-off-by: addy ke <addy.ke@rock-chips.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-02Merge remote-tracking branches 'spi/topic/adi', 'spi/topic/atmel' and ↵Mark Brown
'spi/topic/cadence' into spi-next
2014-05-16spi/topcliff-pch: Fix Kconfig dependenciesJean Delvare
The spi-topcliff-pch driver is for a companion chip to the Intel Atom E600 series processors. These are 32-bit x86 processors so the driver is only needed on X86_32. Add COMPILE_TEST as an alternative, so that the driver can still be build-tested elsewhere. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-15spi: cadence: Add dependency on ARMHarini Katakam
Add dependency on ARM in Kconfig. This is to fix the build error related to _relaxed IO. Remove dependency on SPI_MASTER because this is already defined under if SPI_MASTER in Kconfig. Signed-off-by: Harini Katakam <harinik@xilinx.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14spi: Add driver for Cadence SPI controllerHarini Katakam
Add driver for Cadence SPI controller. This is used in Xilinx Zynq. Signed-off-by: Harini Katakam <harinik@xilinx.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14spi: convert spi-bfin-v3.c to a multiplatform driverScott Jiang
Spi v3 controller is not only used on Blackfin. So rename it and use ioread/iowrite api to make it work on other platform. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-08spi: qup: Depend on ARCH_QCOMPaul Bolle
Commit 8fc1b0f87d9f ("ARM: qcom: Split Qualcomm support into legacy and multiplatform") removed Kconfig symbol ARCH_MSM_DT. But that commit left one (optional) dependency on ARCH_MSM_DT untouched. Three Kconfig symbols used to depend on ARCH_MSM_DT: ARCH_MSM8X60, ARCH_MSM8960, and ARCH_MSM8974. These three symbols now depend on ARCH_QCOM. So it appears this driver needs to depend on ARCH_QCOM too. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-30Merge remote-tracking branches 'spi/topic/xilinx' and 'spi/topic/xtfpga' ↵Mark Brown
into spi-next
2014-03-30Merge remote-tracking branches 'spi/topic/sunxi', 'spi/topic/tegra114', ↵Mark Brown
'spi/topic/ti-qspi', 'spi/topic/ti-ssp', 'spi/topic/topcliff-pch', 'spi/topic/txx9', 'spi/topic/xcomm' and 'spi/topic/xfer' into spi-next
2014-03-30Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/sc18is602', ↵Mark Brown
'spi/topic/sh-hspi', 'spi/topic/sh-msiof', 'spi/topic/sh-sci', 'spi/topic/sirf' and 'spi/topic/spidev' into spi-next
2014-03-30Merge remote-tracking branches 'spi/topic/omap-uwire', 'spi/topic/omap100k', ↵Mark Brown
'spi/topic/omap2', 'spi/topic/orion', 'spi/topic/pl022', 'spi/topic/qup', 'spi/topic/rspi' and 'spi/topic/s3c24xx' into spi-next
2014-03-30Merge remote-tracking branches 'spi/topic/imx', 'spi/topic/init', ↵Mark Brown
'spi/topic/mpc512x-psc', 'spi/topic/mpc52xx', 'spi/topic/mxs', 'spi/topic/nuc900', 'spi/topic/oc-tiny' and 'spi/topic/octeon' into spi-next
2014-03-30Merge remote-tracking branches 'spi/topic/drivers', 'spi/topic/dw', ↵Mark Brown
'spi/topic/efm32', 'spi/topic/ep93xx', 'spi/topic/fsl', 'spi/topic/fsl-dspi', 'spi/topic/fsl-espi' and 'spi/topic/gpio' into spi-next
2014-03-30Merge remote-tracking branches 'spi/topic/bus-num', 'spi/topic/cleanup', ↵Mark Brown
'spi/topic/clps711x', 'spi/topic/coldfire', 'spi/topic/completion' and 'spi/topic/davinci' into spi-next
2014-03-27spi: clps711x: Enable driver compilation with COMPILE_TESTAxel Lin
This helps increasing build testing coverage. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-21spi: xtensa-xtfpga: Enable driver compilation with COMPILE_TESTAxel Lin
This helps increasing build testing coverage. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-18spi: remove obsolete spi-ti-ssp driverArnd Bergmann
The tnetv107x platform is getting removed, so this driver will not be needed any more. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-13spi: add xtfpga SPI controller driverMax Filippov
This simple SPI master controller is built into xtfpga bitstreams. It always transfers 16 bit words in SPI mode 0, automatically asserting CS on transfer start and deasserting on end. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-27spi: sh-msiof: Use core message handling instead of spi-bitbangGeert Uytterhoeven
The only remaining feature of spi-bitbang used by this driver is the chipselect() callback, which just does conditional GPIO. This is handled fine by the SPI core's spi_set_cs(), hence switch the driver to use the core message handling through our own transfer_one() method. As the (optional) GPIO CS is no longer deasserted at spi_master.setup() time (through spi_bitbang_setup() and the spi_bitbang.chipselect() callback), we now have to take care of that ourselves. Remove the call to spi_master_put() in sh_msiof_spi_remove(), as our SPI master is now registered using devm_spi_register_master() (spi_bitbang_start() uses the non-managed version). Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-24spi: qup: Depend on ARM && COMPILE_TEST to avoid build errorAxel Lin
This driver uses writel_relaxed() which does not exist in x86, ppc, etc. Make it depend on ARM && COMPILE_TEST to avoid below build error: CC [M] drivers/spi/spi-qup.o drivers/spi/spi-qup.c: In function 'spi_qup_set_state': drivers/spi/spi-qup.c:180:3: error: implicit declaration of function 'writel_relaxed' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[2]: *** [drivers/spi/spi-qup.o] Error 1 make[1]: *** [drivers/spi] Error 2 make: *** [drivers] Error 2 Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-23spi: qup: Enable driver compilation with COMPILE_TESTAxel Lin
This helps increasing build testing coverage. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-23spi: sunxi: Add Allwinner A10 SPI controller driverMaxime Ripard
The older Allwinner SoCs (A10, A13, A10s and A20) all have the same SPI controller. Unfortunately, this SPI controller, even though quite similar, is significantly different from the recently supported A31 SPI controller (different registers offset, split/merged registers, etc.). Supporting both controllers in a single driver would be unreasonable, hence the addition of a new driver. Like its more recent counterpart, it supports DMA, but the driver only does PIO until we have a dmaengine driver for this platform. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-23spi/imx: Drop default setting for SPI_IMXFabio Estevam
SPI_IMX is selected by imx_v6_v7_defconfig/imx_v4_v5_defconfig and we don't need to have a default setting which depends on the IMX_HAVE_PLATFORM_SPI_IMX symbol. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-20spi: Add Qualcomm QUP SPI controller supportIvan T. Ivanov
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: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-16spi/fsl-dspi: Convert to use regmap and add big-endian supportChao Fu
Freescale DSPI module will have two endianess in different platform, but ARM is little endian. So when DSPI in big endian, core in little endian, readl and writel can not adjust R/W register in this condition. This patch will remove general readl/writel, and import regmap mechanism. Data endian will be transfered in regmap APIs. Documents: dspi add bool "big-endian" in dts node if DSPI module work in big endian. Signed-off-by: Chao Fu <b44548@freescale.com> Reviewed-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-10spi: omap2: use SUPERH, not SHPaul Bolle
Commit 0079aae0f1e6 ("spi: omap2: Add build dependencies for writel_relaxed()") added an optional Kconfig dependency on SH. That Kconfig symbol doesn't exist. Apparently SUPERH was intended. Use that. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-06spi/sunxi: Add missing dependency on RESET_CONTROLLERMark Brown
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-05spi: sunxi: Add Allwinner A31 SPI controller driverMaxime Ripard
The Allwinner A31 has a new SPI controller IP compared to the older Allwinner SoCs. It supports DMA, but the driver only does PIO for now, and DMA will be supported eventually. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-04spi: rspi: Document support for Renesas QSPI in KconfigGeert Uytterhoeven
As of commit 5ce0ba88650f2606244a761d92e2b725f4ab3583 ("spi: rcar: add Renesas QSPI support on RSPI") the rspi driver handles Renesas QSPI, too, but this was not reflected in the Kconfig help text. Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-03spi: dw-mmio: remove HAVE_CLK build dependecyBaruch Siach
Since 93abe8e4 (clk: add non CONFIG_HAVE_CLK routines) code using clk.h like this platform driver needs not depend on HAVE_CLK. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-25Merge tag 'spi-v3.14-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "A respun version of the merges for the pull request previously sent with a few additional fixes. The last two merges were fixed up by hand since the branches have moved on and currently have the prior merge in them. Quite a busy release for the SPI subsystem, mostly in cleanups big and small scattered through the stack rather than anything else: - New driver for the Broadcom BC63xx HSSPI controller - Fix duplicate device registration for ACPI - Conversion of s3c64xx to DMAEngine (this pulls in platform and DMA changes upon which the transiton depends) - Some small optimisations to reduce the amount of time we hold locks in the datapath, eliminate some redundant checks and the size of a spi_transfer - Lots of fixes, cleanups and general enhancements to drivers, especially the rspi and Atmel drivers" * tag 'spi-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (112 commits) spi: core: Fix transfer failure when master->transfer_one returns positive value spi: Correct set_cs() documentation spi: Clarify transfer_one() w.r.t. spi_finalize_current_transfer() spi: Spelling s/finised/finished/ spi: sc18is602: Convert to use bits_per_word_mask spi: Remove duplicate code to set default bits_per_word setting spi/pxa2xx: fix compilation warning when !CONFIG_PM_SLEEP spi: clps711x: Add MODULE_ALIAS to support module auto-loading spi: rspi: Add missing clk_disable() calls in error and cleanup paths spi: rspi: Spelling s/transmition/transmission/ spi: rspi: Add support for specifying CPHA/CPOL spi/pxa2xx: initialize DMA channels to -1 to prevent inadvertent match spi: rspi: Add more QSPI register documentation spi: rspi: Add more RSPI register documentation spi: rspi: Remove dependency on DMAE for SHMOBILE spi/s3c64xx: Correct indentation spi: sh: Use spi_sh_clear_bit() instead of open-coded spi: bitbang: Grammar s/make to make/to make/ spi: sh-hspi: Spelling s/recive/receive/ spi: core: Improve tx/rx_nbits check comments ...
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