[PATCH RFC 04/12] firmware: zynqmp-fpga: pass physical device to DMA API

[Ahmad Fatoum]

The manager device is just a child of the physical device with no
DT node assigned. As such, it lacks all DMA settings that may be
set in the DT. Fix this by using the hardware device instead.

Cc: Michael Tretter <m.tretter at pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 drivers/firmware/zynqmp-fpga.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/zynqmp-fpga.c b/drivers/firmware/zynqmp-fpga.c
index f4e8456843e5..806bce6174ef 100644
--- a/drivers/firmware/zynqmp-fpga.c
+++ b/drivers/firmware/zynqmp-fpga.c
@@ -197,6 +197,7 @@ static void zynqmp_fpga_show_header(const struct device *dev,
 static int fpgamgr_program_finish(struct firmware_handler *fh)
 {
 	struct fpgamgr *mgr = container_of(fh, struct fpgamgr, fh);
+	struct device *hw_dev = mgr->dev.parent;
 	u32 *buf_aligned;
 	u32 buf_size;
 	u32 *body;
@@ -254,9 +255,9 @@ static int fpgamgr_program_finish(struct firmware_handler *fh)
 		memcpy((u32 *)buf_aligned, body, body_length);
 	buf_aligned[body_length / sizeof(*buf_aligned)] = body_length;
 
-	addr = dma_map_single(&mgr->dev, buf_aligned,
+	addr = dma_map_single(hw_dev, buf_aligned,
 			      body_length + sizeof(buf_size), DMA_TO_DEVICE);
-	if (dma_mapping_error(&mgr->dev, addr)) {
+	if (dma_mapping_error(hw_dev, addr)) {
 		status = -EFAULT;
 		goto err_free_dma;
 	}
@@ -267,7 +268,7 @@ static int fpgamgr_program_finish(struct firmware_handler *fh)
 		buf_size = addr + body_length;
 
 	status = mgr->eemi_ops->fpga_load((u64)addr, buf_size, flags);
-	dma_unmap_single(&mgr->dev, addr, body_length + sizeof(buf_size),
+	dma_unmap_single(hw_dev, addr, body_length + sizeof(buf_size),
 			 DMA_TO_DEVICE);
 	if (status < 0)
 		dev_err(&mgr->dev, "unable to load fpga\n");
-- 
2.30.2