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path: root/drivers/spi
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2022-04-25spi: spi-tegra20-slink: using pm_runtime_resume_and_get instead of ↵Minghao Chi
pm_runtime_get_sync Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220418110141.2559019-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: cadence-quadspi: allow operations with cmd/addr buswidth >1Matthias Schiffer
With the removal of the incorrect logic of cqspi_set_protocol(), ops with cmd/addr buswidth >1 are now working correctly. Tested on a TI AM64x with a Macronix MX25U51245G QSPI flash using 1-4-4 operations. DTR operations are currently untested, so we leave them disabled for now (except for the previously allowed 8-8-8 ops). Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Link: https://lore.kernel.org/r/20220420155616.281730-2-matthias.schiffer@ew.tq-group.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: cadence-quadspi: drop cqspi_set_protocol()Matthias Schiffer
As suggested, this removes the whole cqspi_set_protocol() function, as it is not actually needed: - Checks for unsupported operations are already handled by supports_op(), removing the need to distinguish DTR and non-DTR modes in the buswidth setup - supports_op() ensures that the DTR flags match for all relevant parts of an operation, so op->cmd.dtr can be used instead of copying the flag to the cqspi_flash_pdata - The logic in cqspi_set_protocol() is moved to cqspi_calc_rdreg() and cqspi_write_setup() (with a helper macro CQSPI_OP_WIDTH()) The helper macro checks nbytes instead of buswidth for 0, for consistency with supports_op() etc. Suggested-by: Pratyush Yadav <p.yadav@ti.com> Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Link: https://lore.kernel.org/r/20220420155616.281730-1-matthias.schiffer@ew.tq-group.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: spi-tegra20-sflash: using pm_runtime_resume_and_get instead of ↵Minghao Chi
pm_runtime_get_sync Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220418110103.2558955-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: rockchip: fix missing error on unsupported SPI_CS_HIGHLuca Ceresoli
The hardware (except for the ROCKCHIP_SPI_VER2_TYPE2 version) does not support active-high native chip selects. However if such a CS is configured the core does not error as it normally should, because the 'ctlr->use_gpio_descriptors = true' line in rockchip_spi_probe() makes the core set SPI_CS_HIGH in ctlr->mode_bits. In such a case the spi-rockchip driver operates normally but produces an active-low chip select signal without notice. There is no provision in the current core code to handle this situation. Fix by adding a check in the ctlr->setup function (similarly to what spi-atmel.c does). This cannot be done reading the SPI_CS_HIGH but in ctlr->mode_bits because that bit gets always set by the core for master mode (see above). Fixes: eb1262e3cc8b ("spi: spi-rockchip: use num-cs property and ctlr->enable_gpiods") Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://lore.kernel.org/r/20220421213251.1077899-1-luca.ceresoli@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: spi-omap2-mcspi: using pm_runtime_resume_and_get instead of ↵Minghao Chi
pm_runtime_get_sync Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220414085433.2541670-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: mxs: using pm_runtime_resume_and_get instead of pm_runtime_get_syncMinghao Chi
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220420090420.2588868-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: spi-imx: using pm_runtime_resume_and_get instead of pm_runtime_get_syncMinghao Chi
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220414085343.2541608-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: spi-sprd: using pm_runtime_resume_and_get instead of pm_runtime_get_syncMinghao Chi
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220414085506.2541732-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: ingenic: Add support for new Ingenic SoCs.周琰杰 (Zhou Yanjie)
1.Since it would be dangerous to specify a newer SoC's compatible string as the fallback of an older SoC's compatible string, we add support for the "ingenic,jz4775-spi" compatible string in the driver. This will permit to support the JZ4775 by having: compatible = "ingenic,jz4775-spi"; Instead of doing: compatible = "ingenic,jz4775-spi", "ingenic,jz4780-spi"; 2.Add support for probing the spi-ingenic driver on the X1000 SoC from Ingenic. From the X1000 SoC onwards, the maximum frequency allowed by the SSI module of Ingenic SoCs has been changed from 54MHz to 50MHz. So "max_speed_hz" is introduced in "jz_soc_info" to set different maximum frequency values. 3.Add support for probing the spi-ingenic driver on the X2000 SoC from Ingenic. The X2000 SoC has only one native chip select line, so "max_native_cs" is introduced in "jz_soc_info" to set different maximum number of native chip select lines. 4.Because of the introduction of support for the X-series SoCs, the current driver is not only applicable to the JZ-series SoCs, so the description texts has been modified to avoid misunderstanding. Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/1650724725-93758-4-git-send-email-zhouyanjie@wanyeetech.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25spi: ingenic: Add support for use GPIO as chip select line.周琰杰 (Zhou Yanjie)
Add support for using GPIOs as chip select lines on Ingenic SoCs. Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/1650724725-93758-2-git-send-email-zhouyanjie@wanyeetech.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-22spi: Use helper for safer setting of driver_overrideKrzysztof Kozlowski
Use a helper to set driver_override to the reduce amount of duplicated code. Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220419113435.246203-8-krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-22spi: img-spfi: Fix pm_runtime_get_sync() error checkingZheng Yongjun
If the device is already in a runtime PM enabled state pm_runtime_get_sync() will return 1, so a test for negative value should be used to check for errors. Fixes: deba25800a12b ("spi: Add driver for IMG SPFI controller") Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Link: https://lore.kernel.org/r/20220422062641.10486-1-zhengyongjun3@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-21spi: spi-mem: check if data buffers are on stackPratyush Yadav
The buffers passed in the data phase must be DMA-able. Programmers often don't realise this requirement and pass in buffers that reside on the stack. This can be hard to spot when reviewing code. Reject ops if their data buffer is on the stack to avoid this. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Link: https://lore.kernel.org/r/20220420102022.3310970-1-p.yadav@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-21ARM: omap1: move perseus spi pinconf to board fileArnd Bergmann
The driver has always had a FIXME about this, and it seems like this trivial code move avoids a mach header inclusion, so just do it. With that out of the way, and the header file inclusions changed to global files, the driver can also be compile-tested on other platforms. Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-04-20spi: intel: Implement dirmap hooksMika Westerberg
Currently the driver goes over the supported opcodes list each time ->exec_op() is called and finds the suitable for the given operation. This consumes unnecessary amount of CPU cycles because the operation is always the same. For this reason populate dirmap hooks for the driver so that we cache the selected operation and then simply call it on each read/write. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Link: https://lore.kernel.org/r/20220420104350.19510-1-mika.westerberg@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-20MediaTek SPI controller cleanups and documentationMark Brown
Merge series from AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>: This series performs some cleanups to the spi-mt65xx driver, removing all gotos, simplifying the probe function and adding kerneldoc to the driver structures.
2022-04-19Merge tag 'spi-fix-v5.18-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A few more fixes for SPI, plus one new PCI ID for another Intel chipset. All device specific stuff" * tag 'spi-fix-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: atmel-quadspi: Fix the buswidth adjustment between spi-mem and controller spi: cadence-quadspi: fix incorrect supports_op() return value spi: intel: Add support for Raptor Lake-S SPI serial flash spi: spi-mtk-nor: initialize spi controller after resume
2022-04-19spi: mt65xx: Fix definitions indentationAngeloGioacchino Del Regno
Some definitions at the beginning of this file were wrongly indented: fix the indentation for all of these and, while at it, also move the MTK_SPI_IDLE and MTK_SPI_PAUSED down, as to implicitly group the hardware related definitions to the software (driver) related ones. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220407114428.167091-9-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: mt65xx: Add kerneldoc for driver structuresAngeloGioacchino Del Regno
One of the two structures was already partially documented, but not in kerneldoc format: enhance readability by adding the missing documentation bits and use kerneldoc. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220407114428.167091-8-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: mt65xx: Simplify probe function with dev_err_probe()AngeloGioacchino Del Regno
Switch to dev_err_probe() to remove all dev_err() -> return repeated patterns, simplifying and shortening the probe function. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220407114428.167091-7-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: mt65xx: Move pm_runtime_enable() call to remove all gotosAngeloGioacchino Del Regno
The last goto in the probe function can be removed by calling pm_runtime_enable() right before devm_spi_register_master(), as only some init checks were being performed after enabling pm. This is a cleanup and brings no functional changes. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220407114428.167091-6-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: mt65xx: Move clock parent setting to remove clock disable gotosAngeloGioacchino Del Regno
Reparenting sel_clk to parent_clk can be done before enabling any of spi_clk and spi_hclk. Move the call to clk_set_parent() for sel_clk earlier, and call disable_unprepare() upon spi_clk prepare_enable() failure to remove all clock disablement related gotos. This commit is in preparation of a later cleanup. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220407114428.167091-5-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: mt65xx: Add and use pointer to struct device in mtk_spi_probe()AngeloGioacchino Del Regno
In preparation for switching to dev_err_probe() in this function, add a pointer to struct device and replace all occurrences of '&pdev->dev' to using this 'dev' pointer. This is done for one-line fitting of the dev_err_probe() calls. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220407114428.167091-4-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: mt65xx: Switch to device_get_match_data()AngeloGioacchino Del Regno
Instead of performing yet another match check in the probe function, simply switch to device_get_match_data(). This is a cleanup and brings no functional change. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220407114428.167091-3-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: mt65xx: Simplify probe function with devm_spi_alloc_masterAngeloGioacchino Del Regno
Switch to the devm variant of spi_alloc_master() to save some gotos. This patch is a cleanup that brings no functional changes. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220407114428.167091-2-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: using pm_runtime_resume_and_get instead of pm_runtime_get_syncMinghao Chi
Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220418110226.2559081-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: spi-imx: add support for SPI_RX_CPHA_FLIPBaruch Siach
When SPI_RX_CPHA_FLIP is set, flip CPHA on Rx only transfers. This is useful to access devices that use inverted CPHA for MISO vs MOSI signals. Only support the mx51/mx53 variants for now. Tested on i.MX6ULL based system. Signed-off-by: Baruch Siach <baruch.siach@siklu.com> Link: https://lore.kernel.org/r/e11b4446afe9a46a282dd923d22c27d03fae15f8.1649702729.git.baruch@tkos.co.il Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: spidev: add SPI_RX_CPHA_FLIPBaruch Siach
Allow userspace to set SPI_RX_CPHA_FLIP mode bit using the SPI_IOC_WR_MODE32 ioctl. Signed-off-by: Baruch Siach <baruch.siach@siklu.com> Link: https://lore.kernel.org/r/6ae31ad24f8252418878b21a8759a04b78726dac.1649702729.git.baruch@tkos.co.il Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: intel: Fix typo in kernel-doc of intel_spi_probe()Mika Westerberg
Should be 'specific' not 'spefific'. Fix this. Reported-by: Hongli Li <hongli.li@intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Link: https://lore.kernel.org/r/20220411113158.2037-1-mika.westerberg@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: spi-ti-qspi: using pm_runtime_resume_and_get instead of pm_runtime_get_syncMinghao Chi
Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220408080931.2494356-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: spi-tegra114: using pm_runtime_resume_and_get instead of ↵Minghao Chi
pm_runtime_get_sync Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220412070951.2532157-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: spi-cadence-quadspi: using pm_runtime_resume_and_get instead of ↵Minghao Chi
pm_runtime_get_sync Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220413093656.2538504-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19spi: remove spin_lock_irq and variable in the irq procressLi-hao Kuo
remove spin_lock_irq spin_unlock_irq and variable in the irq funciton Signed-off-by: Li-hao Kuo <lhjeff911@gmail.com> Link: https://lore.kernel.org/r/f9991d6064d892d22ac7c2dfabe16309e9d03888.1650010304.git.lhjeff911@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-19dmaengine: imx: Move header to include/dma/Sascha Hauer
The i.MX DMA drivers are device tree only, nothing in include/linux/platform_data/dma-imx.h has platform_data in it, so move the file to include/linux/dma/imx-dma.h. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-By: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20220414162249.3934543-10-s.hauer@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-14spi: core: Initialize returned status in spi_setupPaul Kocialkowski
The previous commit that made bits-per-word validation conditional results in leaving no unconditional affectation of the status variable. Since the variable is returned at the end of the function, initialize it to avoid returning an undefined value. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Fixes: b3fe2e516741 ("spi: core: Only check bits_per_word validity when explicitly provided") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20220414084040.975520-1-paul.kocialkowski@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-13spi: Pull in Atmel fixMark Brown
Pull in Atmel fix series, only first patch of which is for Linus Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-13spi: atmel-quadspi: Remove duplicated DTR checksTudor Ambarus
Remove the DTR checks as they are already handled in spi_mem_default_supports_op(). This code removal was intentionally not done in the previous patch that introduced the use of the spi_mem_default_supports_op() core helper and fixed the buswidth adjustment between SPIMEM and the SPI controller, so that the fix can be easily backported to stable kernels. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Link: https://lore.kernel.org/r/20220406133604.455356-2-tudor.ambarus@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-13spi: atmel-quadspi: Fix the buswidth adjustment between spi-mem and controllerTudor Ambarus
Use the spi_mem_default_supports_op() core helper in order to take into account the buswidth specified by the user in device tree. Cc: <stable@vger.kernel.org> Fixes: 0e6aae08e9ae ("spi: Add QuadSPI driver for Atmel SAMA5D2") Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Link: https://lore.kernel.org/r/20220406133604.455356-1-tudor.ambarus@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-13spi: cadence-quadspi: fix incorrect supports_op() return valueMatthias Schiffer
Since the conversion to spi-mem, the driver advertised support for various operations that cqspi_set_protocol() was never expected to handle correctly - in particuar all non-DTR operations with command or address buswidth > 1. For DTR, all operations except for 8-8-8 would fail, as cqspi_set_protocol() returns -EINVAL. In non-DTR mode, this resulted in data corruption for SPI-NOR flashes that support such operations. As a minimal fix that can be backported to stable kernels, simply disallow the unsupported operations again to avoid this issue. Fixes: a314f6367787 ("mtd: spi-nor: Convert cadence-quadspi to use spi-mem framework") Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Link: https://lore.kernel.org/r/20220406132832.199777-1-matthias.schiffer@ew.tq-group.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-13spi: intel: Add support for Raptor Lake-S SPI serial flashMika Westerberg
Intel Raptor Lake-S has the same SPI serial flash controller as Alder Lake-P. Add Raptor Lake-S PCI ID to the driver list of supported devices. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Link: https://lore.kernel.org/r/20220411112116.53281-1-mika.westerberg@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-12spi: spi-mtk-nor: initialize spi controller after resumeAllen-KH Cheng
After system resumes, the registers of nor controller are initialized with default values. The nor controller will not function properly. To handle both issues above, we add mtk_nor_init() in mtk_nor_resume after pm_runtime_force_resume(). Fixes: 3bfd9103c7af ("spi: spi-mtk-nor: Add power management support") Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Link: https://lore.kernel.org/r/20220412115743.22641-1-allen-kh.cheng@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-12spi: spi-rspi: Remove setting {src,dst}_{addr,addr_width} based on DMA directionBiju Das
The direction field in the DMA config is deprecated. The rspi driver sets {src,dst}_{addr,addr_width} based on the DMA direction and it results in dmaengine_slave_config() failure as RZ DMAC driver validates {src,dst}_addr_width values independent of DMA direction. This patch fixes the issue by passing both {src,dst}_{addr,addr_width} values independent of DMA direction. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Suggested-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20220411173115.6619-1-biju.das.jz@bp.renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-12spi: core: Only check bits_per_word validity when explicitly providedPaul Kocialkowski
On SPI device probe, the core will call spi_setup in spi_add_device before the corresponding driver was probed. When this happens, the bits_per_word member of the device is not yet set by the driver, resulting in the default being set to 8 bits-per-word. However some controllers do not support 8 bits-per-word at all, which results in a failure when checking the bits-per-word validity. In order to support these devices, skip the bits-per-word validity check when it is not explicitly provided by drivers. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Link: https://lore.kernel.org/r/20220412122207.130181-1-paul.kocialkowski@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-12spi: spi-stm32-qspi: using pm_runtime_resume_and_get instead of ↵Minghao Chi
pm_runtime_get_sync Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> Link: https://lore.kernel.org/r/20220412070906.2532091-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-11spi: spi-ti-qspi: Fix return value handling of wait_for_completion_timeoutMiaoqian Lin
wait_for_completion_timeout() returns unsigned long not int. It returns 0 if timed out, and positive if completed. The check for <= 0 is ambiguous and should be == 0 here indicating timeout which is the only error case. Fixes: 5720ec0a6d26 ("spi: spi-ti-qspi: Add DMA support for QSPI mmap read") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220411111034.24447-1-linmq006@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-08Merge tag 'acpi-5.18-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These revert a problematic commit from the 5.17 development cycle and finalize the elimination of acpi_bus_get_device() that mostly took place during the recent merge window. Specifics: - Revert an ACPI processor driver change related to cache invalidation in acpi_idle_play_dead() that clearly was a mistake and introduced user-visible regressions (Akihiko Odaki). - Replace the last instance of acpi_bus_get_device() added during the recent merge window and drop the function to prevent more users of it from being added (Rafael Wysocki)" * tag 'acpi-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: bus: Eliminate acpi_bus_get_device() Revert "ACPI: processor: idle: Only flush cache on entering C3"
2022-04-06spi: spi-cadence: Fix kernel-doc format for resume/suspendMichal Simek
Kernel function name don't match with function name. Error log: drivers/spi/spi-cadence.c:661: warning: expecting prototype for cdns_spi_runtime_resume(). Prototype was for cnds_runtime_resume() instead drivers/spi/spi-cadence.c:690: warning: expecting prototype for cdns_spi_runtime_suspend(). Prototype was for cnds_runtime_suspend() instead Fixes: d36ccd9f7ea4 ("spi: cadence: Runtime pm adaptation") Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com> Link: https://lore.kernel.org/r/20220322150018.12736-1-amit.kumar-mahapatra@xilinx.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-06spi: bcm-qspi: fix MSPI only access with bcm_qspi_exec_mem_op()Kamal Dasu
This fixes case where MSPI controller is used to access spi-nor flash and BSPI block is not present. Fixes: 5f195ee7d830 ("spi: bcm-qspi: Implement the spi_mem interface") Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220328142442.7553-1-kdasu.kdev@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-06spi: cadence-quadspi: fix protocol setup for non-1-1-X operationsMatthias Schiffer
cqspi_set_protocol() only set the data width, but ignored the command and address width (except for 8-8-8 DTR ops), leading to corruption of all transfers using 1-X-X or X-X-X ops. Fix by setting the other two widths as well. While we're at it, simplify the code a bit by replacing the CQSPI_INST_TYPE_* constants with ilog2(). Tested on a TI AM64x with a Macronix MX25U51245G QSPI flash with 1-4-4 read and write operations. Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Link: https://lore.kernel.org/r/20220331110819.133392-1-matthias.schiffer@ew.tq-group.com Signed-off-by: Mark Brown <broonie@kernel.org>
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