Unverified Commit d1000583 authored by Dmitry Baryshkov's avatar Dmitry Baryshkov Committed by Mark Brown
Browse files

spi: spi-geni-qcom: enable SPI_CONTROLLER_MUST_TX for GPI DMA mode 



The GPI DMA mode requires for TX DMA to be prepared. Force SPI core to
provide TX buffer even if the caller didn't provide one by setting the
SPI_CONTROLLER_MUST_TX flag.

Fixes: b59c1224 ("spi: spi-geni-qcom: Add support for GPI dma")
Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230629095847.3648597-1-dmitry.baryshkov@linaro.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent e884a133

drivers/spi/spi-geni-qcom.c

+6 −0
Original line number Diff line number Diff line
@@ -1100,6 +1100,12 @@ static int spi_geni_probe(struct platform_device *pdev) 
	if (mas->cur_xfer_mode == GENI_SE_FIFO)

		spi->set_cs = spi_geni_set_cs;



	/*

	 * TX is required per GSI spec, see setup_gsi_xfer().

	 */

	if (mas->cur_xfer_mode == GENI_GPI_DMA)

		spi->flags = SPI_CONTROLLER_MUST_TX;



	ret = request_irq(mas->irq, geni_spi_isr, 0, dev_name(dev), spi);

	if (ret)

		goto spi_geni_release_dma;