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spi: imx: enable loopback only for ECSPI controller family

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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>
This commit is contained in:
Anton Bondarenko 2015-12-08 07:43:44 +01:00 committed by Mark Brown
parent f677f17cce
commit 4686d1c3d1
1 changed files with 6 additions and 5 deletions
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11
drivers/spi/spi-imx.c
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@ -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)) {