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spi-gpio: init CS before spi_bitbang_setup()
spi_bitbang_setup() deasserts the chip select line to initialise the device. The chip select GPIO line is obtained from spi_gpio->cs_gpios[] private data. Currently, devices that are not registered under devicetree environment will call into spi_bitbang_setup() with stale cs_gpios[]. This patch ensures spi_gpio->cs_gpios[] is always initialised prior to calling spi_bitbang_setup(). Reviewed-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Josef Ahmad <josef.ahmad@intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -265,9 +265,9 @@ static int spi_gpio_setup(struct spi_device *spi)
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}
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}
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if (!status) {
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status = spi_bitbang_setup(spi);
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/* in case it was initialized from static board data */
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spi_gpio->cs_gpios[spi->chip_select] = cs;
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status = spi_bitbang_setup(spi);
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}
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if (status) {
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