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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-06-28 13:48:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-06-28 13:48:42 -0700 |
| commit | 84fccbba93103b22044617e419ba20e1403b4a65 (patch) | |
| tree | d2b2ca8757e8183e3c8692cdcdb6f82b379c2fa8 /drivers/spi/spi-fsl-lpspi.c | |
| parent | 362067b6d5ca5b59a849a8e1183fb51d616fcf19 (diff) | |
| parent | e884a133340a470070b2c59833c9ff87aa6517ba (diff) | |
Merge tag 'spi-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"One small core feature this time around but mostly driver improvements
and additions for SPI:
- Add support for controlling the idle state of MOSI, some systems
can support this and depending on the system integration may need
it to avoid glitching in some situations
- Support for polling mode in the S3C64xx driver and DMA on the
Qualcomm QSPI driver
- Support for several Allwinner SoCs, AMD Pensando Elba, Intel Mount
Evans, Renesas RZ/V2M, and ST STM32H7"
* tag 'spi-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (66 commits)
spi: dt-bindings: atmel,at91rm9200-spi: fix broken sam9x7 compatible
spi: dt-bindings: atmel,at91rm9200-spi: add sam9x7 compatible
spi: Add support for Renesas CSI
spi: dt-bindings: Add bindings for RZ/V2M CSI
spi: sun6i: Use the new helper to derive the xfer timeout value
spi: atmel: Prevent false timeouts on long transfers
spi: dt-bindings: stm32: do not disable spi-slave property for stm32f4-f7
spi: Create a helper to derive adaptive timeouts
spi: spi-geni-qcom: correctly handle -EPROBE_DEFER from dma_request_chan()
spi: stm32: disable spi-slave property for stm32f4-f7
spi: stm32: introduction of stm32h7 SPI device mode support
spi: stm32: use dmaengine_terminate_{a}sync instead of _all
spi: stm32: renaming of spi_master into spi_controller
spi: dw: Remove misleading comment for Mount Evans SoC
spi: dt-bindings: snps,dw-apb-ssi: Add compatible for Intel Mount Evans SoC
spi: dw: Add compatible for Intel Mount Evans SoC
spi: s3c64xx: Use dev_err_probe()
spi: s3c64xx: Use the managed spi master allocation function
spi: spl022: Probe defer is no error
spi: spi-imx: fix mixing of native and gpio chipselects for imx51/imx53/imx6 variants
...
Diffstat (limited to 'drivers/spi/spi-fsl-lpspi.c')
| -rw-r--r-- | drivers/spi/spi-fsl-lpspi.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index 4b70038ceb6b..fb68c72df171 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -303,6 +303,12 @@ static int fsl_lpspi_set_bitrate(struct fsl_lpspi_data *fsl_lpspi) perclk_rate = clk_get_rate(fsl_lpspi->clk_per); + if (!config.speed_hz) { + dev_err(fsl_lpspi->dev, + "error: the transmission speed provided is 0!\n"); + return -EINVAL; + } + if (config.speed_hz > perclk_rate / 2) { dev_err(fsl_lpspi->dev, "per-clk should be at least two times of transfer speed"); @@ -911,7 +917,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev) if (ret == -EPROBE_DEFER) goto out_pm_get; if (ret < 0) - dev_err(&pdev->dev, "dma setup error %d, use pio\n", ret); + dev_warn(&pdev->dev, "dma setup error %d, use pio\n", ret); else /* * disable LPSPI module IRQ when enable DMA mode successfully, |