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* Merge tag 'spi-v3.17' of ↵Linus Torvalds2014-08-0628-220/+1623
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "A quiet release, more bug fixes than anything else. A few things do stand out though: - updates to several drivers to move towards the standard GPIO chip select handling in the core. - DMA support for the SH MSIOF driver. - support for Rockchip SPI controllers (their first mainline submission)" * tag 'spi-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (64 commits) spi: davinci: use spi_device.cs_gpio to store gpio cs per spi device spi: davinci: add support to configure gpio cs through dt spi/pl022: Explicitly truncate large bitmask spi/atmel: Fix pointer to int conversion warnings on 64 bit builds spi: davinci: fix to support more than 2 chip selects spi: topcliff-pch: don't hardcode PCI slot to get DMA device spi: orion: fix incorrect handling of cell-index DT property spi: orion: Fix error return code in orion_spi_probe() spi/rockchip: fix error return code in rockchip_spi_probe() spi/rockchip: remove redundant dev_err call in rockchip_spi_probe() spi/rockchip: remove duplicated include from spi-rockchip.c ARM: dts: fix the chip select gpios definition in the SPI nodes spi: s3c64xx: Update binding documentation spi: s3c64xx: use the generic SPI "cs-gpios" property spi: s3c64xx: Revert "spi: s3c64xx: Added provision for dedicated cs pin" spi: atmel: Use dmaengine_prep_slave_sg() API spi: topcliff-pch: Update error messages for dmaengine_prep_slave_sg() API spi: sh-msiof: Use correct device for DMA mapping with IOMMU spi: sh-msiof: Handle dmaengine_prep_slave_single() failures gracefully spi: rspi: Handle dmaengine_prep_slave_sg() failures gracefully ...
| *---. Merge remote-tracking branches 'spi/topic/sh', 'spi/topic/sh-msiof' and ↵Mark Brown2014-08-044-65/+493
| |\ \ \ | | | | | | | | | | | | | | | 'spi/topic/topcliff-pch' into spi-next
| | | | * spi: topcliff-pch: don't hardcode PCI slot to get DMA deviceAndy Shevchenko2014-07-311-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DMA is a function 0 of the multifunction device where SPI host is attached. Thus, we may avoid to hardcode PCI slot number. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * spi: topcliff-pch: Update error messages for dmaengine_prep_slave_sg() APIGeert Uytterhoeven2014-07-171-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 16052827d98fbc13c31ebad560af4bd53e2b4dd5 ("dmaengine/dma_slave: introduce inline wrappers") changed the code to use the new API, but forgot to update the error messages. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> -- v2: - New Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * | spi: sh-msiof: Use correct device for DMA mapping with IOMMUGeert Uytterhoeven2014-07-171-10/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To function correctly in the presence of an IOMMU, the DMA buffers must be mapped using the DMA channel's device instead of the MSIOF platform device's device. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * | spi: sh-msiof: Handle dmaengine_prep_slave_single() failures gracefullyGeert Uytterhoeven2014-07-161-8/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As typically a shmobile SoC has less DMA channels than devices that can use DMA, we may want to prioritize access to the DMA channels in the future. This means that dmaengine_prep_slave_single() may start failing arbitrarily. Handle dmaengine_prep_slave_single() failures gracefully by falling back to PIO. This requires moving DMA-specific configuration of the MSIOF device after the call(s) to dmaengine_prep_slave_single(). 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: SPI_SH_MSIOF should depend on HAS_DMAGeert Uytterhoeven2014-07-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | * | Merge tag 'v3.16-rc3' into spi-sh-msiofMark Brown2014-07-084-36/+22
| | | |\ \ | | | | | | | | | | | | | | | | | | Linux 3.16-rc3
| | | * \ \ Merge remote-tracking branch 'spi/topic/cleanup' into spi-sh-msiofMark Brown2014-06-306-9/+3
| | | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/spi/spi-sh-msiof.c
| | | * | | | spi: sh-msiof: Add DMA supportGeert Uytterhoeven2014-06-301-7/+341
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add DMA support to the MSIOF driver using platform data. As MSIOF DMA is limited to 32-bit words (requiring byte/wordswapping for smaller wordsizes), and the group length is limited to 256 words, DMA is performed on two fixed pages, allocated and mapped at driver initialization time. Performance figures (in Mbps) on r8a7791/koelsch at different SPI clock frequencies for 1024-byte and 4096-byte transfers: 1024 bytes 4096 bytes - 3.25 MHz: PIO 2.1, DMA 2.6 | PIO 2.8, DMA 3.1 - 6.5 MHz: PIO 3.2, DMA 4.4 | PIO 5.0, DMA 5.9 - 13 MHz: PIO 4.2, DMA 6.6 | PIO 8.2, DMA 10.7 - 26 MHz: PIO 5.9, DMA 10.4 | PIO 12.4, DMA 18.4 Note that DMA is only faster than PIO for transfers that exceed the FIFO size (typically 64 words / 256 bytes). Also note that large transfers (larger than the group length for DMA, or larger than the FIFO size for PIO), should use cs-gpio (with the appropriate pinmux setup), as the hardware chipselect will be deasserted in between chunks. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * | | | spi: sh-msiof: Refactor sh_msiof_transfer_one()Geert Uytterhoeven2014-06-211-22/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Move buffer pointer and length setup to the top, - Make unsigned values unsigned, - Loop over words and increment pointers instead of recalculating them, which allows to kill bytes_done. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * | | | spi: sh-msiof: Improve transfer error handlingGeert Uytterhoeven2014-06-211-5/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add a timeout when waiting for the transfer complete interrupt, - If sh_msiof_spi_stop() fails, there's no need to clear IER, as the interrupt handler has already done that, - Propagate transfer failures in sh_msiof_transfer_one(). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * | | | spi: sh-msiof: Extract sh_msiof_spi_{start,stop}() helpersGeert Uytterhoeven2014-06-211-14/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on an old patch by Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * | | | spi: sh-msiof: Add more register documentationGeert Uytterhoeven2014-06-211-1/+53
| | | | |_|/ | | | |/| | | | | | | | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | * / | | spi/spi-sh: Use devm_ioremapHimangi Saraogi2014-07-071-9/+6
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces the use of devm_ioremap and removes the iounmaps in the probe and remove functions. Also, the labels are renamed to preserve ordering. Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Mark Brown <broonie@linaro.org>
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| *-------. \ \ \ Merge remote-tracking branches 'spi/topic/orion', 'spi/topic/pl022', ↵Mark Brown2014-08-047-44/+959
| |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'spi/topic/qup', 'spi/topic/rockchip' and 'spi/topic/rspi' into spi-next
| | | | | | * | | | spi: rspi: Handle dmaengine_prep_slave_sg() failures gracefullyGeert Uytterhoeven2014-07-161-8/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As typically a shmobile SoC has less DMA channels than devices that can use DMA, we may want to prioritize access to the DMA channels in the future. This means that dmaengine_prep_slave_sg() may start failing arbitrarily. Handle dmaengine_prep_slave_sg() failures gracefully by falling back to PIO. 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: rspi: Relax DMA dependency and increase build coverageGeert Uytterhoeven2014-07-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | * | | | spi: rspi: Pass spi_master pointer to rspi_release_dma()Geert Uytterhoeven2014-07-071-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rspi_release_dma() doesn't need access to any fields in the driver private data, except for the pointer to the SPI master object. Hence just pass the needed pointer. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | | * | | | spi: rspi: Remove unused variable in rspi_rz_transfer_one()Geert Uytterhoeven2014-07-071-1/+0
| | | | | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduced by commit 8b983e90ea1a3dd82070f96c062ad521a06b7cc0 ("spi: rspi: Extract rspi_common_transfer()"), which removed its users. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi/rockchip: fix error return code in rockchip_spi_probe()Wei Yongjun2014-07-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix to return -EINVAL from the error handling case instead of 0 when failed to get fifo length. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi/rockchip: remove redundant dev_err call in rockchip_spi_probe()Wei Yongjun2014-07-251-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi/rockchip: remove duplicated include from spi-rockchip.cWei Yongjun2014-07-251-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove duplicated include. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi/rockchip: add compatible strings for RK3188 and RK3288Addy Ke2014-07-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suggested-by: Mark Brown <broonie@kernel.org> Signed-off-by: Addy Ke <addy.ke@rockchip.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi/rockchip: master->mode_bits: remove SPI_CS_HIGH bitAddy Ke2014-07-111-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suggested-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: Addy Ke <addy.ke@rockchip.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi/rockchip: call wait_for_idle() for the transfer to completeAddy Ke2014-07-111-5/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suggested-by: Mark Brown <broonie@kernel.org> Signed-off-by: Addy Ke <addy.ke@rockchip.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi/rockchip: cleanup some coding issues and uncessary outputAddy Ke2014-07-111-18/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suggested-by: Mark Brown <broonie@kernel.org> Signed-off-by: Addy Ke <addy.ke@rockchip.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi/rockchip: Add dependencies on relaxed I/O accessorsMark Brown2014-07-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | * | | | spi/rockchip: add driver for Rockchip RK3xxx SoCs integrated SPIaddy ke2014-07-043-0/+834
| | | | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | * / / / spi: qup: Add support for v1.1.1Andy Gross2014-06-211-14/+22
| | | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for v1.1.1 of the SPI QUP controller. Signed-off-by: Andy Gross <agross@codeaurora.org> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * / / / spi/pl022: Explicitly truncate large bitmaskMark Brown2014-08-011-1/+1
| | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When building on 64 bit architectures the use of bitwise negation generates constants larger than 32 bits which won't fit in u32s used to represent 32 bit register values on the device. Explicitly cast to let the compiler know that the higher bits are not significant and can be discarded. Signed-off-by: Mark Brown <broonie@linaro.org>
| | * | | | spi: orion: Fix error return code in orion_spi_probe()Wei Yongjun2014-07-251-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix to return a negative error code from the error handling case of orion_spi_reset() instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mark Brown <broonie@linaro.org>
| | * | | | spi: spi-orion: add runtime PM supportRussell King2014-06-211-9/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add trivial runtime PM support. This will only be of benefit on SoCs where the clock to the SPI interface can be shut down. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Mark Brown <broonie@linaro.org>
| | * | | | spi: spi-orion: check return value from clk_prepare()/clk_enable()Russell King2014-06-211-2/+4
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clk_prepare()/clk_enable() can fail, and it's return value should be checked. Add the proper checking, and while we're here, convert to clk_prepare_enable(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Mark Brown <broonie@linaro.org>
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| *-----. \ \ \ Merge remote-tracking branches 'spi/topic/dw', 'spi/topic/efm32', ↵Mark Brown2014-08-044-10/+30
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | 'spi/topic/fsl' and 'spi/topic/omap-uwire' into spi-next
| | | | | * | | | spi: omap-uwire: Fix build errorSachin Kamat2014-06-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes the following build error introduced by commit b3f6a57506 ("spi: omap-uwire: use devm_ functions"): drivers/spi/spi-omap-uwire.c:465:2: error: implicit declaration of function ‘devm_ioremap’ Since we are including <linux/io.h>, <asm/io.h> is no longer needed. Remove it. Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi: omap-uwire: Ensure devm_ioremap() is prototypedMark Brown2014-06-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | | spi: omap-uwire: use devm_ functionsHimangi Saraogi2014-06-211-6/+2
| | | | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces the use of devm_clk_get and devm_ioremap instead of the unmanaged interfaces and removes the corresponding free function calls. Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * / / / spi/fsl: deal with a compile warningZhao Qiang2014-07-021-1/+1
| | | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ret is unused when CONFIG_FSL_SOC defined, so return ret instead of -ENOMEM when the kzalloc fails to avoid it. Signed-off-by: Zhao Qiang <B45475@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | * / / / spi: efm32: correct namespacing of location propertyUwe Kleine-König2014-07-111-1/+7
| | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Olof Johansson pointed out that usually the company name is picked as namespace prefix to specific properties. So expect "energymicro,location" but fall back to the previously introduced name "efm32,location". Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Mark Brown <broonie@linaro.org>
| | * / / / spi: dw-mmio: add devicetree supportSteffen Trumtrar2014-07-031-1/+18
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow probing the dw-mmio from devicetree. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Mark Brown <broonie@linaro.org>
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| *-----. \ \ \ Merge remote-tracking branches 'spi/topic/adi-v3', 'spi/topic/atmel', ↵Mark Brown2014-08-0410-47/+66
| |\ \ \ \ \ \ \ | | | | | |_|/ / | | | | |/| | | | | | | | | | | 'spi/topic/cleanup' and 'spi/topic/davinci' into spi-next
| | | | | * | | spi: davinci: use spi_device.cs_gpio to store gpio cs per spi deviceGrygorii Strashko2014-08-011-37/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rework Davinci SPI driver to store GPIO CS number in cs_gpio field of SPI device structure (spi_device) for both DT and non-DT cases. This will make Davinci SPI driver code simpler and allows to reuse more SPI core functionality. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | spi: davinci: add support to configure gpio cs through dtMurali Karicheri2014-08-011-8/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently driver supports only configuration of GPIO CS through platform data. This patch enhances the driver to configure GPIO CS through DT. Also update the DT binding documentation to reflect the availability of cs-gpios. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | | * | | spi: davinci: fix to support more than 2 chip selectsMurali Karicheri2014-07-311-3/+9
| | | | | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the driver defines SPI_MAX_CHIPSELECT as 2 and use per device array bytes_per_word based on this. This breaks if num_chipselect per device is greater than 2. This patch fix this and allocate memory for this array based on num_chipselect. It's preparation patch to enable GPIO CS feature for Davinci SPI. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | spi: sh-hspi: Make of_device_id array constJingoo Han2014-06-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | spi: fsl-spi: Make of_device_id array constJingoo Han2014-06-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | spi: cadence: Make of_device_id array constJingoo Han2014-06-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Harini Katakam <harinik@xilinx.com> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | spi: sh-msiof: Remove unnecessary platform_set_drvdata()Alexander Shiyan2014-06-061-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop call to platform_set_drvdata() as driver data is not used anywhere in the driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Mark Brown <broonie@linaro.org>
| | | | * | | spi: omap-100k: Remove unnecessary platform_set_drvdata()Alexander Shiyan2014-06-061-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop call to platform_set_drvdata() as driver data is not used anywhere in the driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Mark Brown <broonie@linaro.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 16:01:41 +0100