[PATCH 01/26] spi: mt65xx: fix controller deregistration

[Johan Hovold <johan@kernel.org>]

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

Fixes: a568231f4632 ("spi: mediatek: Add spi bus for Mediatek MT8173")
Cc: stable@vger.kernel.org	# 4.3: ace145802350
Cc: stable@vger.kernel.org	# 4.3
Cc: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/spi/spi-mt65xx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 0368a26bca9a..96f8555be983 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -1325,7 +1325,7 @@ static int mtk_spi_probe(struct platform_device *pdev)
 
 	pm_runtime_enable(dev);
 
-	ret = devm_spi_register_controller(dev, host);
+	ret = spi_register_controller(host);
 	if (ret) {
 		pm_runtime_disable(dev);
 		return dev_err_probe(dev, ret, "failed to register host\n");
@@ -1340,6 +1340,8 @@ static void mtk_spi_remove(struct platform_device *pdev)
 	struct mtk_spi *mdata = spi_controller_get_devdata(host);
 	int ret;
 
+	spi_unregister_controller(host);
+
 	cpu_latency_qos_remove_request(&mdata->qos_request);
 	if (mdata->use_spimem && !completion_done(&mdata->spimem_done))
 		complete(&mdata->spimem_done);
-- 
2.52.0