Re: [PATCH v5 10/14] mfd: lm3533: Set DMA mask

Johan Hovold <[email protected]>
Newsgroups org.kernel.vger.linux-leds,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-fbdev,org.kernel.vger.linux-iio,org.kernel.vger.linux-kernel
Message-ID <[email protected]> 
On Wed, Jun 17, 2026 at 11:00:27AM +0300, Svyatoslav Ryhel wrote:
> 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.

IIUC this warning is introduced by the OF conversion and should
therefore be moved before it as a preparatory patch.

But you need to describe the problem in more detail here as this looks
fishy.

Johan
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