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[v4,9/9] misc: fastrpc: Add dma_mask to fastrpc_channel_ctx

Message ID 20220916154102.1768088-10-abel.vesa@linaro.org
State Accepted
Commit 9bde43a0e2f469961e18d0a3496a9a74379c22bf
Headers show
Series misc: fastrpc: Add audiopd support | expand

Commit Message

Abel Vesa Sept. 16, 2022, 3:41 p.m. UTC 
dma_set_mask_and_coherent only updates the mask to which the device
dma_mask pointer points to. Add a dma_mask to the channel ctx and set
the device dma_mask to point to that, otherwise the dma_set_mask will
return an error and the dma_set_coherent_mask will be skipped too.

Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
 drivers/misc/fastrpc.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index b45f1285317a..c39eae8b26c7 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -278,6 +278,7 @@  struct fastrpc_channel_ctx {
 	struct list_head invoke_interrupted_mmaps;
 	bool secure;
 	bool unsigned_support;
+	u64 dma_mask;
 };
 
 struct fastrpc_device {
@@ -2305,6 +2306,7 @@  static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
 	kref_init(&data->refcount);
 
 	dev_set_drvdata(&rpdev->dev, data);
+	rdev->dma_mask = &data->dma_mask;
 	dma_set_mask_and_coherent(rdev, DMA_BIT_MASK(32));
 	INIT_LIST_HEAD(&data->users);
 	INIT_LIST_HEAD(&data->invoke_interrupted_mmaps);