diff options
| author | Anton Bondarenko <anton.bondarenko.sama@gmail.com> | 2015-12-08 07:43:44 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-12-15 22:40:35 +0000 |
| commit | 4686d1c3d17a146192aa707a92edc2e122ada39e (patch) | |
| tree | 2c45e0f94d58b69d19aa1e04edd1f5d8b5e4823d /drivers/spi | |
| parent | f677f17cced0ca72a4331b64de119b35b19facb0 (diff) | |
| download | linux-4686d1c3d17a146192aa707a92edc2e122ada39e.tar.gz linux-4686d1c3d17a146192aa707a92edc2e122ada39e.tar.bz2 linux-4686d1c3d17a146192aa707a92edc2e122ada39e.zip | |
spi: imx: enable loopback only for ECSPI controller family
Limit SPI_LOOP mode to ECSPI controller (iMX.51, iMX53 and i.MX6) only since
there is no support in other families specific code for now.
Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-imx.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 3aa33c8c819f..17a90dcab328 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -1140,6 +1140,9 @@ static int spi_imx_probe(struct platform_device *pdev) spi_imx = spi_master_get_devdata(master); spi_imx->bitbang.master = master; + spi_imx->devtype_data = of_id ? of_id->data : + (struct spi_imx_devtype_data *)pdev->id_entry->driver_data; + for (i = 0; i < master->num_chipselect; i++) { int cs_gpio = of_get_named_gpio(np, "cs-gpios", i); if (!gpio_is_valid(cs_gpio) && mxc_platform_info) @@ -1164,14 +1167,12 @@ static int spi_imx_probe(struct platform_device *pdev) spi_imx->bitbang.master->cleanup = spi_imx_cleanup; spi_imx->bitbang.master->prepare_message = spi_imx_prepare_message; spi_imx->bitbang.master->unprepare_message = spi_imx_unprepare_message; - spi_imx->bitbang.master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | - SPI_LOOP; + spi_imx->bitbang.master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; + if (is_imx51_ecspi(spi_imx)) + spi_imx->bitbang.master->mode_bits |= SPI_LOOP; init_completion(&spi_imx->xfer_done); - spi_imx->devtype_data = of_id ? of_id->data : - (struct spi_imx_devtype_data *) pdev->id_entry->driver_data; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); spi_imx->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(spi_imx->base)) { |