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spi: cadence: Add support for context loss

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Context could be lost across the suspend and resume.
Reinit the driver to tide over.

Signed-off-by: Shubhrajyoti Datta <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
This commit is contained in:
Shubhrajyoti Datta 2017-08-08 11:00:03 +02:00 • committed by Mark Brown
commit 802740890c
1 changed files with 2 additions and 0 deletions
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drivers/spi/spi-cadence.c
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@ -704,7 +704,9 @@ static int __maybe_unused cdns_spi_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct spi_master *master = platform_get_drvdata(pdev);
struct cdns_spi *xspi = spi_master_get_devdata(master);
cdns_spi_init_hw(xspi);
return spi_master_resume(master);
}