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Commit b541eef1 authored by Michal Suchanek's avatar Michal Suchanek Committed by Mark Brown
Browse files

spi: fsl-espi: expose maximum transfer size limit 



The fsl-espi hardware can trasfer at most 64K data so report teh
limitation.

Based on patch by Heiner Kallweit <hkallweit1@gmail.com>

CC: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarMichal Suchanek <hramrach@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 4acad4aa

drivers/spi/spi-fsl-espi.c

+6 −0
Original line number Diff line number Diff line
@@ -643,6 +643,11 @@ static int fsl_espi_runtime_resume(struct device *dev) 
}

#endif



static size_t fsl_espi_max_transfer_size(struct spi_device *spi)

{

	return SPCOM_TRANLEN_MAX;

}



static struct spi_master * fsl_espi_probe(struct device *dev,

		struct resource *mem, unsigned int irq)

{
@@ -670,6 +675,7 @@ static struct spi_master * fsl_espi_probe(struct device *dev, 
	master->cleanup = fsl_espi_cleanup;

	master->transfer_one_message = fsl_espi_do_one_msg;

	master->auto_runtime_pm = true;

	master->max_transfer_size = fsl_espi_max_transfer_size;



	mpc8xxx_spi = spi_master_get_devdata(master);