diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-14 03:23:01 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-14 03:23:01 (GMT) |
commit | 93c222c0e126c1c24ac454acf013f2c85e57bd8b (patch) | |
tree | 920c429de92857aaf74e64a0f4f9fbaec7032fcf /drivers/spi/spi-mt65xx.c | |
parent | f89c2b39ce676cb08b6ed8848cde76dcb21cc672 (diff) | |
parent | 9f9499ae8e6415cefc4fe0a96ad0e27864353c89 (diff) | |
download | linux-93c222c0e126c1c24ac454acf013f2c85e57bd8b.tar.xz |
Merge 4.4-rc5 into staging-next
We want those fixes in here for testing.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/spi/spi-mt65xx.c')
-rw-r--r-- | drivers/spi/spi-mt65xx.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index 563954a..7840067 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -410,7 +410,7 @@ static int mtk_spi_setup(struct spi_device *spi) if (!spi->controller_data) spi->controller_data = (void *)&mtk_default_chip_info; - if (mdata->dev_comp->need_pad_sel) + if (mdata->dev_comp->need_pad_sel && gpio_is_valid(spi->cs_gpio)) gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH)); return 0; @@ -632,13 +632,23 @@ static int mtk_spi_probe(struct platform_device *pdev) goto err_put_master; } - for (i = 0; i < master->num_chipselect; i++) { - ret = devm_gpio_request(&pdev->dev, master->cs_gpios[i], - dev_name(&pdev->dev)); - if (ret) { - dev_err(&pdev->dev, - "can't get CS GPIO %i\n", i); - goto err_put_master; + if (!master->cs_gpios && master->num_chipselect > 1) { + dev_err(&pdev->dev, + "cs_gpios not specified and num_chipselect > 1\n"); + ret = -EINVAL; + goto err_put_master; + } + + if (master->cs_gpios) { + for (i = 0; i < master->num_chipselect; i++) { + ret = devm_gpio_request(&pdev->dev, + master->cs_gpios[i], + dev_name(&pdev->dev)); + if (ret) { + dev_err(&pdev->dev, + "can't get CS GPIO %i\n", i); + goto err_put_master; + } } } } |