The patch

spi: pxa2xx: Setup maximum supported DMA transfer length

has been applied to the spi tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From ef070b4e4aa25bb5f8632ad196644026c11903bf Mon Sep 17 00:00:00 2001

From: Andy Shevchenko andriy.shevchenko@linux.intel.com Date: Tue, 19 Feb 2019 23:21:28 +0300 Subject: [PATCH] spi: pxa2xx: Setup maximum supported DMA transfer length

When the commit b6ced294fb61

("spi: pxa2xx: Switch to SPI core DMA mapping functionality")

switches to SPI core provided DMA helpers, it missed to setup maximum supported DMA transfer length for the controller and thus users mistakenly try to send more data than supported with the following warning:

ili9341 spi-PRP0001:01: DMA disabled for transfer length 153600 greater than 65536

Setup maximum supported DMA transfer length in order to make users know the limit.

Fixes: b6ced294fb61 ("spi: pxa2xx: Switch to SPI core DMA mapping functionality") Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org Cc: stable@vger.kernel.org --- drivers/spi/spi-pxa2xx.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index d84b893a64d7..3e82eaad0f2d 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1696,6 +1696,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) platform_info->enable_dma = false; } else { master->can_dma = pxa2xx_spi_can_dma; + master->max_dma_len = MAX_DMA_LEN; } }