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Message-Id: <20221117184406.292416-1-nfrayer@baylibre.com>
Date: Thu, 17 Nov 2022 19:44:06 +0100
From: Nicolas Frayer <nfrayer@...libre.com>
To: peter.ujfalusi@...il.com, vkoul@...nel.org,
dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: khilman@...libre.com, glaroque@...libre.com, nfrayer@...libre.com
Subject: [PATCH v3] dmaengine: ti: k3-udma: Deferring probe when soc_device_match() returns NULL
When the k3 socinfo driver is built as a module, there is a possibility
that it will probe after the k3 udma driver and the later returns -ENODEV.
By deferring the k3 udma probe we allow the k3 socinfo to probe and
register the soc_device_attribute structure needed by the k3 udma driver.
Removed the dev_err() message as well as it's deferring and not failing.
Signed-off-by: Nicolas Frayer <nfrayer@...libre.com>
---
v1->v2:
Extracted this patch from the following series:
https://lore.kernel.org/all/20221108181144.433087-1-nfrayer@baylibre.com/
v2->v3:
Removed the dev_err() message
drivers/dma/ti/k3-udma.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index ce8b80bb34d7..ca1512eb9910 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -5271,10 +5271,10 @@ static int udma_probe(struct platform_device *pdev)
ud->match_data = match->data;
soc = soc_device_match(k3_soc_devices);
- if (!soc) {
- dev_err(dev, "No compatible SoC found\n");
- return -ENODEV;
- }
+
+ if (!soc)
+ return -EPROBE_DEFER;
+
ud->soc_data = soc->data;
ret = udma_get_mmrs(pdev, ud);
--
2.25.1
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