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SubjectApplied "spi: img-spfi: Use dma_request_chan() instead dma_request_slave_channel()" to the spi tree
The patch

spi: img-spfi: Use dma_request_chan() instead dma_request_slave_channel()

has been applied to the spi tree at for-5.6

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

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From 6bfbf4d0aa0c5ebfd4442e1200b21565703e90ed Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <>
Date: Thu, 12 Dec 2019 15:55:45 +0200
Subject: [PATCH] spi: img-spfi: Use dma_request_chan() instead

dma_request_slave_channel() is a wrapper on top of dma_request_chan()
eating up the error code.

By using dma_request_chan() directly the driver can support deferred
probing against DMA.

Signed-off-by: Peter Ujfalusi <>
Signed-off-by: Mark Brown <>
drivers/spi/spi-img-spfi.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c
index f4a8f470aecc..8543f5ed1099 100644
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
@@ -666,8 +666,22 @@ static int img_spfi_probe(struct platform_device *pdev)
master->unprepare_message = img_spfi_unprepare;
master->handle_err = img_spfi_handle_err;

- spfi->tx_ch = dma_request_slave_channel(spfi->dev, "tx");
- spfi->rx_ch = dma_request_slave_channel(spfi->dev, "rx");
+ spfi->tx_ch = dma_request_chan(spfi->dev, "tx");
+ if (IS_ERR(spfi->tx_ch)) {
+ ret = PTR_ERR(spfi->tx_ch);
+ spfi->tx_ch = NULL;
+ if (ret == -EPROBE_DEFER)
+ goto disable_pm;
+ }
+ spfi->rx_ch = dma_request_chan(spfi->dev, "rx");
+ if (IS_ERR(spfi->rx_ch)) {
+ ret = PTR_ERR(spfi->rx_ch);
+ spfi->rx_ch = NULL;
+ if (ret == -EPROBE_DEFER)
+ goto disable_pm;
+ }
if (!spfi->tx_ch || !spfi->rx_ch) {
if (spfi->tx_ch)
 \ /
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