diff options
| author |   Michal Suchanek <hramrach@gmail.com> | 2015-12-02 10:38:21 +0000 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2016-01-05 16:33:54 +0000 |
| commit | b541eef125fa3ae0df84572459af4e7084cb6343 (patch) | |
| tree | b085c9d4299ec0cd7f16a8078ec7dbc27cc46086 /drivers/spi/spi-fsl-espi.c | |
| parent | spi: expose master transfer size limitation. (diff) | |
| download | linux-dev-b541eef125fa3ae0df84572459af4e7084cb6343.tar.xz linux-dev-b541eef125fa3ae0df84572459af4e7084cb6343.zip | |
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: Michal Suchanek <hramrach@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-fsl-espi.c')
| -rw-r--r-- | drivers/spi/spi-fsl-espi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c index c27124a5ec8e..7fd6a4c009d2 100644 --- a/drivers/spi/spi-fsl-espi.c +++ b/drivers/spi/spi-fsl-espi.c @@ -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); |