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spi: spi-geni-qcom: correctly handle -EPROBE_DEFER from dma_request_chan()
author
Neil Armstrong
<neil.armstrong@linaro.org>
Thu, 15 Jun 2023 12:51:45 +0000
(14:51 +0200)
committer
Mark Brown
<broonie@kernel.org>
Mon, 19 Jun 2023 11:59:48 +0000
(12:59 +0100)
Now spi_geni_grab_gpi_chan() errors are correctly reported, the
-EPROBE_DEFER error should be returned from probe in case the
GPI dma driver is built as module and/or not probed yet.
Fixes:
b59c122484ec
("spi: spi-geni-qcom: Add support for GPI dma")
Fixes:
6532582c353f
("spi: spi-geni-qcom: fix error handling in spi_geni_grab_gpi_chan()")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link:
https://lore.kernel.org/r/20230615-topic-sm8550-upstream-fix-spi-geni-qcom-probe-v2-1-670c3d9e8c9c@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi-geni-qcom.c
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diff --git
a/drivers/spi/spi-geni-qcom.c
b/drivers/spi/spi-geni-qcom.c
index
e423efc
..
08672a9
100644
(file)
--- a/
drivers/spi/spi-geni-qcom.c
+++ b/
drivers/spi/spi-geni-qcom.c
@@
-646,6
+646,8
@@
static int spi_geni_init(struct spi_geni_master *mas)
geni_se_select_mode(se, GENI_GPI_DMA);
dev_dbg(mas->dev, "Using GPI DMA mode for SPI\n");
break;
+ } else if (ret == -EPROBE_DEFER) {
+ goto out_pm;
}
/*
* in case of failure to get gpi dma channel, we can still do the