public inbox for linux-omap@vger.kernel.org
 help / color / mirror / Atom feed
From: Nicolas Frayer <nfrayer@baylibre.com>
To: nm@ti.com, ssantosh@kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, peter.ujfalusi@gmail.com,
	vkoul@kernel.org, dmaengine@vger.kernel.org,
	grygorii.strashko@ti.com, davem@davemloft.net,
	edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
	linux-omap@vger.kernel.org, netdev@vger.kernel.org
Cc: khilman@baylibre.com, glaroque@baylibre.com, nfrayer@baylibre.com
Subject: [PATCH v4 3/4] dmaengine: ti: k3-udma: Deferring probe when soc_device_match() returns NULL
Date: Tue,  8 Nov 2022 19:11:43 +0100	[thread overview]
Message-ID: <20221108181144.433087-4-nfrayer@baylibre.com> (raw)
In-Reply-To: <20221108181144.433087-1-nfrayer@baylibre.com>

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.

Signed-off-by: Nicolas Frayer <nfrayer@baylibre.com>
---
 drivers/dma/ti/k3-udma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 7b5081989b3d..a6bb5077900b 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -5285,7 +5285,7 @@ static int udma_probe(struct platform_device *pdev)
 	soc = soc_device_match(k3_soc_devices);
 	if (!soc) {
 		dev_err(dev, "No compatible SoC found\n");
-		return -ENODEV;
+		return -EPROBE_DEFER;
 	}
 	ud->soc_data = soc->data;
 
-- 
2.25.1


  parent reply	other threads:[~2022-11-08 18:12 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-08 18:11 [PATCH v4 0/4] soc: ti: Add module build support to the socinfo Nicolas Frayer
2022-11-08 18:11 ` [PATCH v4 1/4] soc: ti: Convert allocations to devm Nicolas Frayer
2022-11-08 18:11 ` [PATCH v4 2/4] soc: ti: Add module build support Nicolas Frayer
2022-11-08 18:18   ` Randy Dunlap
2022-11-24  9:04     ` Nicolas Frayer
2022-11-24  7:54   ` Péter Ujfalusi
2022-11-24  9:01     ` Nicolas Frayer
2022-11-08 18:11 ` Nicolas Frayer [this message]
2022-11-08 18:11 ` [PATCH v4 4/4] net: ethernet: ti: davinci_mdio: Deferring probe when soc_device_match() returns NULL Nicolas Frayer
2022-11-10 11:21   ` Paolo Abeni
2022-11-16 10:52     ` Nicolas Frayer
2022-11-23 15:59   ` Vignesh Raghavendra
2022-11-23 17:33     ` Kevin Hilman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20221108181144.433087-4-nfrayer@baylibre.com \
    --to=nfrayer@baylibre.com \
    --cc=davem@davemloft.net \
    --cc=dmaengine@vger.kernel.org \
    --cc=edumazet@google.com \
    --cc=glaroque@baylibre.com \
    --cc=grygorii.strashko@ti.com \
    --cc=khilman@baylibre.com \
    --cc=kuba@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-omap@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=nm@ti.com \
    --cc=pabeni@redhat.com \
    --cc=peter.ujfalusi@gmail.com \
    --cc=ssantosh@kernel.org \
    --cc=vkoul@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox