[PATCH 19/26] spi: sun6i: fix controller deregistration

[Johan Hovold]

Make sure to deregister the controller before disabling underlying
resources like clocks during driver unbind.

Fixes: 3558fe900e8a ("spi: sunxi: Add Allwinner A31 SPI controller driver")
Cc: stable@xxxxxxxxxxxxxxx	# 3.15
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
 drivers/spi/spi-sun6i.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c
index 240e46f84f7b..5ac73d324d06 100644
--- a/drivers/spi/spi-sun6i.c
+++ b/drivers/spi/spi-sun6i.c
@@ -742,7 +742,7 @@ static int sun6i_spi_probe(struct platform_device *pdev)
 	pm_runtime_set_active(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 
-	ret = devm_spi_register_controller(&pdev->dev, host);
+	ret = spi_register_controller(host);
 	if (ret) {
 		dev_err(&pdev->dev, "cannot register SPI host\n");
 		goto err_pm_disable;
@@ -768,12 +768,18 @@ static void sun6i_spi_remove(struct platform_device *pdev)
 {
 	struct spi_controller *host = platform_get_drvdata(pdev);
 
+	spi_controller_get(host);
+
+	spi_unregister_controller(host);
+
 	pm_runtime_force_suspend(&pdev->dev);
 
 	if (host->dma_tx)
 		dma_release_channel(host->dma_tx);
 	if (host->dma_rx)
 		dma_release_channel(host->dma_rx);
+
+	spi_controller_put(host);
 }
 
 static const struct sun6i_spi_cfg sun6i_a31_spi_cfg = {
-- 
2.52.0