linux-kernel - Re: [PATCH] misc: fastrpc: Use of_reserved_mem_region_to

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Message-ID: <nl6qf6btlkr73ozw6psh4hyt5ke4o6hlctbgzcjukmr4dojbes@rj3zqv32nn2e>
Date: Thu, 3 Jul 2025 22:45:30 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: "Rob Herring (Arm)" <robh@...nel.org>
Cc: Srinivas Kandagatla <srini@...nel.org>,
        Amol Maheshwari <amahesh@....qualcomm.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] misc: fastrpc: Use of_reserved_mem_region_to_resource()
 for "memory-region"

On Thu, Jul 03, 2025 at 01:34:54PM -0500, Rob Herring (Arm) wrote:
> Use the newly added of_reserved_mem_region_to_resource() function to
> handle "memory-region" properties.
> 
> The error handling is a bit different. "memory-region" is optional, so
> failed lookup is not an error. But then an error in
> of_reserved_mem_lookup() is treated as an error. However, that
> distinction is not really important. Either the region is available
> and usable or it is not. So now, it is just
> of_reserved_mem_region_to_resource() which is checked for an error.
> 
> Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
> ---
>  drivers/misc/fastrpc.c | 19 +++++++------------
>  1 file changed, 7 insertions(+), 12 deletions(-)

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>

> 

-- 
With best wishes
Dmitry