aboutsummaryrefslogtreecommitdiff
path: root/drivers
AgeCommit message (Collapse)Author
2022-03-18spi: fsi: Implement a timeout for polling statusEddie James
The data transfer routines must poll the status register to determine when more data can be shifted in or out. If the hardware gets into a bad state, these polling loops may never exit. Prevent this by returning an error if a timeout is exceeded. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20220317211426.38940-1-eajames@linux.ibm.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-17spi: Fix erroneous sgs value with min_t()Biju Das
While computing sgs in spi_map_buf(), the data type used in min_t() for max_seg_size is 'unsigned int' where as that of ctlr->max_dma_len is 'size_t'. min_t(unsigned int,x,y) gives wrong results if one of x/y is 'size_t' Consider the below examples on a 64-bit machine (ie size_t is 64-bits, and unsigned int is 32-bit). case 1) min_t(unsigned int, 5, 0x100000001); case 2) min_t(size_t, 5, 0x100000001); Case 1 returns '1', where as case 2 returns '5'. As you can see the result from case 1 is wrong. This patch fixes the above issue by using the data type of the parameters that are used in min_t with maximum data length. Fixes: commit 1a4e53d2fc4f68aa ("spi: Fix invalid sgs value") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20220316175317.465-1-biju.das.jz@bp.renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-17spi: Get sgs size fix into branchMark Brown
Dependency for patch to be applied.
2022-03-16spi: tegra20: Use of_device_get_match_data()Minghao Chi
Use of_device_get_match_data() to simplify the 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/20220315023138.2118293-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-15fix typos in commentsMark Brown
Merge series from Julia Lawall <Julia.Lawall@inria.fr>: Various spelling mistakes in comments. Detected with the help of Coccinelle. --- drivers/base/devres.c | 4 ++-- drivers/clk/qcom/gcc-sm6125.c | 2 +- drivers/clk/ti/clkctrl.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 4 ++-- drivers/gpu/drm/amd/display/dc/bios/command_table.c | 6 +++--- drivers/gpu/drm/amd/pm/amdgpu_pm.c | 2 +- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 4 ++-- drivers/gpu/drm/sti/sti_gdp.c | 2 +- drivers/infiniband/hw/qib/qib_iba7220.c | 4 ++-- drivers/leds/leds-pca963x.c | 2 +- drivers/media/i2c/ov5695.c | 2 +- drivers/mfd/rohm-bd9576.c | 2 +- drivers/mtd/ubi/block.c | 2 +- drivers/net/can/usb/ucan.c | 4 ++-- drivers/net/ethernet/packetengines/yellowfin.c | 2 +- drivers/net/wireless/ath/ath6kl/htc_mbox.c | 2 +- drivers/net/wireless/cisco/airo.c | 2 +- drivers/net/wireless/mediatek/mt76/mt7915/init.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c | 6 +++--- drivers/platform/x86/uv_sysfs.c | 2 +- drivers/s390/crypto/pkey_api.c | 2 +- drivers/scsi/aic7xxx/aicasm/aicasm.c | 2 +- drivers/scsi/elx/libefc_sli/sli4.c | 2 +- drivers/scsi/lpfc/lpfc_mbox.c | 2 +- drivers/scsi/qla2xxx/qla_gs.c | 2 +- drivers/spi/spi-sun4i.c | 2 +- drivers/staging/rtl8723bs/core/rtw_mlme.c | 2 +- drivers/usb/gadget/udc/snps_udc_core.c | 2 +- fs/kernfs/file.c | 2 +- kernel/events/core.c | 2 +- 30 files changed, 39 insertions(+), 39 deletions(-)
2022-03-15spi: mediatek: add ipm design support for MT7986Leilk Liu
this patch add the support of ipm design. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220315032411.2826-4-leilk.liu@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-15spi: sun4i: fix typos in commentsJulia Lawall
Various spelling mistakes in comments. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Acked-by: Chen-Yu Tsai <wens@csie.org> Link: https://lore.kernel.org/r/20220314115354.144023-22-Julia.Lawall@inria.fr Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-15spi: mediatek: support tick_delay without enhance_timingLeilk Liu
this patch support tick_delay bit[31:30] without enhance_timing feature. Fixes: f84d866ab43f("spi: mediatek: add tick_delay support") Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220315032411.2826-2-leilk.liu@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-10spi: rockchip-sfc: fix platform_get_irq.cocci warningYihao Han
Remove dev_err() messages after platform_get_irq*() failures. platform_get_irq() already prints an error. Generated by: scripts/coccinelle/api/platform_get_irq.cocci Signed-off-by: Yihao Han <hanyihao@vivo.com> Link: https://lore.kernel.org/r/20220310094806.13734-1-hanyihao@vivo.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-08spi: Tesla FSD supportMark Brown
Merge series from Alim Akhtar: This series adds support for the SPI controller in the Tesla FSD SoC, also pulling in: git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git ib-mfd-spi-dt-v5.18 from the MFD tree which has dependencies for the DT bindings.
2022-03-08spi: s3c64xx: Add spi port configuration for Tesla FSD SoCAlim Akhtar
Add compatible and port configuration for spi controller for Tesla Full Self-Driving SoC. Cc: linux-fsd@tesla.com Signed-off-by: Aswani Reddy <aswani.reddy@samsung.com> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Andi Shyti <andi@etezian.org> Link: https://lore.kernel.org/r/20220308121640.27344-2-alim.akhtar@samsung.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-08Tegra QUAD SPI combined sequence modeMark Brown
Merge series from Krishna Yarlagadda <kyarlagadda@nvidia.com>: Add ACPI support for Tegra210 QUAD SPI driver Support new Tegra194 feature, combined sequence mode.
2022-03-08spi: topcliff-pch: Prevent usage of potentially stale DMA deviceAndy Shevchenko
DMA device is expected to be available while SPI transfer is ongoing. Prevent usage of potentially stale DMA device by keeping reference count till the end of the transfer. Fixes: 4d986ffa036a ("spi: add missing pci_dev_put() before return") Reported-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220307173740.80996-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-08spi: tegra210-quad: combined sequence modeKrishna Yarlagadda
Add combined sequence mode supported by Tegra QSPI controller. For commands which contain cmd, addr, data parts to it, controller can accept all 3 transfers at once and avoid interrupt for each transfer. This would improve read & write performance. Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com> Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20220307165519.38380-3-kyarlagadda@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-08spi: tegra210-quad: add acpi supportKrishna Yarlagadda
Add ACPI ID for Tegra QUAD SPI. Switch to common device property calls. Skip clock calls that are not updated in ACPI boot. Runtime PM support is not yet enabled with ACPI boot. Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com> Link: https://lore.kernel.org/r/20220307165519.38380-2-kyarlagadda@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-08spi: Fix invalid sgs valueBiju Das
max_seg_size is unsigned int and it can have a value up to 2^32 (for eg:-RZ_DMAC driver sets dma_set_max_seg_size as U32_MAX) When this value is used in min_t() as an integer type, it becomes -1 and the value of sgs becomes 0. Fix this issue by replacing the 'int' data type with 'unsigned int' in min_t(). Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20220307184843.9994-1-biju.das.jz@bp.renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-07spi: npcm-fiu: Fix typo ("npxm")Jonathan Neuschäfer
The platform is called NPCM, not NPXM. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Link: https://lore.kernel.org/r/20220306142312.109017-1-j.neuschaefer@gmx.net Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-07spi: qup: replace spin_lock_irqsave by spin_lock in hard IRQXingbang Liu
The code has been in a irq-disabled context since it is hard IRQ. There is no necessity to do it again. Signed-off-by: Xingbang Liu <liu.airalert@gmail.com> Link: https://lore.kernel.org/r/20220302071521.6638-1-liu.airalert@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-07spi: cadence: fix platform_get_irq.cocci warningYihao Han
Remove dev_err() messages after platform_get_irq*() failures. platform_get_irq() already prints an error. Generated by: scripts/coccinelle/api/platform_get_irq.cocci Signed-off-by: Yihao Han <hanyihao@vivo.com> Link: https://lore.kernel.org/r/20220303125054.3574-1-hanyihao@vivo.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-07spi: s3c64xx: Allow controller-data to be optionalKrzysztof Kozlowski
The Samsung SoC SPI driver requires to provide controller-data node for each of SPI peripheral device nodes. Make this controller-data node optional, so DTS could be simpler. Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Andi Shyti <andi@etezian.org> Reviwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220124082347.32747-5-krzysztof.kozlowski@canonical.com
2022-03-03spi: Use of_device_get_match_data()Minghao Chi (CGEL ZTE)
Use of_device_get_match_data() to simplify the code. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220303092131.2060044-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-02spi: spi-zynqmp-gqspi: Handle error for dma_set_maskJiasheng Jiang
As the potential failure of the dma_set_mask(), it should be better to check it and return error if fails. Fixes: 126bdb606fd2 ("spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Link: https://lore.kernel.org/r/20220302092051.121343-1-jiasheng@iscas.ac.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: use specific last_cs instead of last_cs_enableYun Zhou
Commit d40f0b6f2e21 instroduced last_cs_enable to avoid setting chipselect if it's not necessary, but it also introduces a bug. The chipselect may not be set correctly on multi-device SPI busses. The reason is that we can't judge the chipselect by bool last_cs_enable, since chipselect may be modified after other devices were accessed. So we should record the specific state of chipselect in case of confusion. Signed-off-by: Yun Zhou <yun.zhou@windriver.com> Link: https://lore.kernel.org/r/20220217141234.72737-1-yun.zhou@windriver.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Constify struct pxa_spi_info variablesAndy Shevchenko
Now when there are no dynamical changes required, we may constify struct pxa_spi_info variables. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-11-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Drop temporary storage use for a handful of membersAndy Shevchenko
Instead of using temporary storage, assign the values directly to the corresponding struct pxa2xx_spi_controller members. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-10-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Extract pxa2xx_spi_pci_clk_register()Andy Shevchenko
Extract pxa2xx_spi_pci_clk_register() from ->probe() in order to reuse it later on for getting rid of max_clk_rate temporary storage. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-9-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Drop unneeded checks in lpss_spi_setup()Andy Shevchenko
All of the LPSS devices are using DMA and set the parameters up, hence no need to test for that. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-8-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Replace enum with direct use of PCI IDsAndy Shevchenko
Instead of creating an abstraction on top of PCI IDs, just use them directly. The corresponding enum can be dropped. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-7-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Move max_clk_rate assignment to ->setup()Andy Shevchenko
Move max_clk_rate to the corresponding ->setup() function to unify with the rest. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-6-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Move dma_burst_size assignment to ->setup()Andy Shevchenko
Instead of using conditional, move dma_burst_size to the corresponding ->setup() function. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-5-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Move port_id assignment to ->setup()Andy Shevchenko
Instead of using conditional, move port_id to the corresponding ->setup() functions. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-4-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Drop redundant NULL check in ->probe()Andy Shevchenko
Since all platforms are using ->setup() function, drop unneeded check. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-3-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Refactor Quark X1000 to use ->setup()Andy Shevchenko
Refactor Quark X1000 handling code to use ->setup() instead of using the configuration data structure directly. It will allow to refactor further to avoid intermediate storage for the used configuration parameters. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Refactor CE4100 to use ->setup()Andy Shevchenko
Refactor CE4100 handling code to use ->setup() instead of spreading potentially confusing conditional. Besides that, it will allow to refactor further to avoid intermediate storage for the used configuration parameters. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-24Tegra QUAD SPI ACPI & device supportMark Brown
Merge series from Krishna Yarlagadda <kyarlagadda@nvidia.com>: Add ACPI support for Tegra210 QUAD SPI driver and a new compatilbe.
2022-02-24spi: tegra210-quad: add new chips to compatibleKrishna Yarlagadda
Add support for Tegra234 and soc data to select capabilities. Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com> Link: https://lore.kernel.org/r/20220222175611.58051-4-kyarlagadda@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-24spi: tegra210-quad: use device_reset methodKrishna Yarlagadda
Use device_reset api to replace duplicate code in driver to call reset_control_get api with reset handle. Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com> Link: https://lore.kernel.org/r/20220222175611.58051-2-kyarlagadda@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-24spi: pxa2xx-pci: Balance reference count for PCI DMA deviceAndy Shevchenko
The pci_get_slot() increases its reference count, the caller must decrement the reference count by calling pci_dev_put(). Fixes: 743485ea3bee ("spi: pxa2xx-pci: Do a specific setup in a separate function") Fixes: 25014521603f ("spi: pxa2xx-pci: Enable DMA for Intel Merrifield") Reported-by: Wang Qing <wangqing@vivo.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220223191637.31147-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-24spi: pxa2xx-pci: Do not dereference fwnode in struct deviceAndy Shevchenko
In order to make the underneath API easier to change in the future, prevent users from dereferencing fwnode from struct device. Instead, use the specific dev_fwnode() API for that. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220223191948.31325-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-23spi: add missing pci_dev_put() before returnWang Qing
pci_get_slot() increases its reference count, the caller must decrement the reference count by calling pci_dev_put() Signed-off-by: Wang Qing <wangqing@vivo.com> Link: https://lore.kernel.org/r/1644890407-65167-1-git-send-email-wangqing@vivo.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-22spi: gpio: Implement LSB First bitbang supportAndreas Färber
Add support for slave DT property spi-lsb-first, i.e., SPI_LSB_FIRST mode. Duplicate the inline helpers bitbang_txrx_be_cpha{0,1} as LE versions. Conditionally call them from all the spi-gpio txrx_word callbacks. Some alternatives to this implementation approach were discussed back then [0], but eventually it was considered reasonable. [0] https://lore.kernel.org/linux-arm-kernel/20191212033952.5967-8-afaerber@suse.de/ Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Tested-by: Christian Hewitt <christianshewitt@gmail.com> Link: https://lore.kernel.org/r/feac3377-4ad1-77d8-9a18-3588d80fb909@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-22spi: stm32: ignore Rx queue not empty in stm32f4 Tx only modeAhmad Fatoum
STM32F4_SPI_SR_RXNE and STM32F4_SPI_SR_OVR are distinct bits in the same status register. ~STM32F4_SPI_SR_OVR | STM32F4_SPI_SR_RXNE is thus equal to ~STM32F4_SPI_SR_OVR. The original intention was likely for transmission-only transfers to ignore interrupts both for when the Rx queue has bytes (RXNE) as well as when these bytes haven't been read in time (OVR). Fix the typo by adding the missing parenthesis. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.kernel.org/r/20220201115142.3999860-1-a.fatoum@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-21spi: Use of_device_get_match_data()Minghao Chi (CGEL ZTE)
Use of_device_get_match_data() to simplify the code. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220221020233.1925154-1-chi.minghao@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-18spi: use sysfs_emit() for printing statistics and add trailing newlineHeiner Kallweit
Use dedicated function sysfs_emit() that does some extra checking, e.g. to ensure that no more than PAGESIZE bytes are written. In addition add a trailing newline to the output, that makes it better readable from the console. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/56e1588d-d53b-73e9-fdc8-7fe30bf91f11@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-18spi: clean up some inconsistent indentingYang Li
Eliminate the follow smatch warning: drivers/spi/spi-sunplus-sp7021.c:379 sp7021_spi_slave_transfer_one() warn: inconsistent indenting Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/20220217010024.111904-1-yang.lee@linux.alibaba.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-17spi: New support and problem adjustment of SPI rockchipMark Brown
Merge series from Jon Lin <jon.lin@rock-chips.com>: A collection of fixes and support for new features in the Rockchip driver. base-commit: 80808768e41324d2e23de89972b5406c1020e6e4
2022-02-17spi: rockchip: clear interrupt status in error handlerJon Lin
The interrupt status bit of the previous error data transmition will affect the next operation and cause continuous SPI transmission failure. Signed-off-by: Jon Lin <jon.lin@rock-chips.com> Link: https://lore.kernel.org/r/20220216014028.8123-7-jon.lin@rock-chips.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-17spi: rockchip: Suspend and resume the bus during NOIRQ_SYSTEM_SLEEP_PM opsshengfei Xu
the wakeup interrupt handler which is guaranteed not to run while @resume noirq() is being executed. the patch can help to avoid the wakeup source try to access spi when the spi is in suspend mode. Signed-off-by: shengfei Xu <xsf@rock-chips.com> Signed-off-by: Jon Lin <jon.lin@rock-chips.com> Link: https://lore.kernel.org/r/20220216014028.8123-6-jon.lin@rock-chips.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-17spi: rockchip: Preset cs-high and clk polarity in setup progressJon Lin
After power up, the cs and clock is in default status, and the cs-high and clock polarity dts property configuration will take no effect until the calling of rockchip_spi_config in the first transmission. So preset them to make sure a correct voltage before the first transmission coming. Signed-off-by: Jon Lin <jon.lin@rock-chips.com> Link: https://lore.kernel.org/r/20220216014028.8123-5-jon.lin@rock-chips.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-17spi: rockchip: Stop spi slave dma receiver when cs inactiveJon Lin
The spi which's version is higher than ver 2 will automatically enable this feature. If the length of master transmission is uncertain, the RK spi slave is better to automatically stop after cs inactive instead of waiting for xfer_completion forever. Signed-off-by: Jon Lin <jon.lin@rock-chips.com> Link: https://lore.kernel.org/r/20220216014028.8123-4-jon.lin@rock-chips.com Signed-off-by: Mark Brown <broonie@kernel.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-14 06:33:03 +0000