github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-07 06:17:02 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

mfd: lm3533: Set DMA mask

Browse Source 
Missing coherent_dma_mask assigning triggers the following warning in
dmesg:

[    3.287872] platform lm3533-backlight.0: DMA mask not set

Since this warning might be elevated to an error in the future, set
coherent_dma_mask to zero because both the core and cells do not utilize
DMA.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Link: https://patch.msgid.link/20260731113632.158440-11-clamor95@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Svyatoslav Ryhel 2026-07-31 14:36:28 +03:00 committed by Lee Jones
parent 4a2300981a
commit 95a968ec7c
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/mfd/lm3533-core.c
View File

@ -479,6 +479,10 @@ static int lm3533_i2c_probe(struct i2c_client *i2c)
LM3533_BOOST_FREQ_MAX);
lm3533->boost_freq = lm3533->boost_freq / (500 * KILO) - 1;
/* LM3533 and child devices do not use DMA */
i2c->dev.coherent_dma_mask = 0;
i2c->dev.dma_mask = &i2c->dev.coherent_dma_mask;
return lm3533_device_init(lm3533);
}