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alistair23-linux
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Merge branch 'fix/mediatek' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-mtk

hifive-unleashed-5.1
Mark Brown 2015-11-25 11:54:56 +00:00
parent 4c3dbd35d4 98c8dccf2b
commit 4d920471d7
1 changed files with 18 additions and 8 deletions
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26
drivers/spi/spi-mt65xx.c
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@ -407,7 +407,7 @@ 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;
@ -629,13 +629,23 @@ 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;
}
}
}
}