spi: cadence: Add support for context loss

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

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c
index 5e02f9b..5c9516a 100644 (file)
--- a/drivers/spi/spi-cadence.c
+++ b/drivers/spi/spi-cadence.c
@@ -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);
 }