From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH master 1/2] dma: fix fixup warning for SoCs without /soc node
Date: Thu, 16 Jan 2025 15:11:47 +0100 [thread overview]
Message-ID: <20250116141148.301230-1-a.fatoum@pengutronix.de> (raw)
For SoCs without a /soc node, any DMA coherency fixups happen at the
device tree root. The root's full name is an empty string in barebox, so
this expectedly fails.
Handle this case specially.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
drivers/dma/of_fixups.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/of_fixups.c b/drivers/dma/of_fixups.c
index 084ab94cc71c..7377c508cfda 100644
--- a/drivers/dma/of_fixups.c
+++ b/drivers/dma/of_fixups.c
@@ -16,7 +16,8 @@ static int of_dma_coherent_fixup(struct device_node *root, void *data)
else
coherency = DEV_DMA_COHERENCE_DEFAULT;
- soc_kernel = of_find_node_by_path_from(root, soc_bb->full_name);
+ soc_kernel = of_find_node_by_path_from(root,
+ *soc_bb->full_name ? soc_bb->full_name : "/");
if (!soc_kernel)
return -ENOENT;
--
2.39.5
next reply other threads:[~2025-01-16 14:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-16 14:11 Ahmad Fatoum [this message]
2025-01-16 14:11 ` [PATCH master 2/2] kbuild: remove stale references to README Ahmad Fatoum
2025-01-21 8:22 ` [PATCH master 1/2] dma: fix fixup warning for SoCs without /soc node Sascha Hauer
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