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

Johan Hovold <[email protected]> Fri, 3 Jul 2026 13:18:05 +0200
Newsgroups org.kernel.vger.linux-fbdev,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-iio,org.kernel.vger.linux-kernel,org.kernel.vger.linux-leds
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