Re: [PATCH v2 3/4] soc: qcom: smem: Support reserved-memory description

[Rob Herring <robh@kernel.org>]

On Thu, Sep 30, 2021 at 11:21:10AM -0700, Bjorn Andersson wrote:
> Practically all modern Qualcomm platforms has a single reserved-memory
> region for SMEM. So rather than having to describe SMEM in the form of a
> node with a reference to a reserved-memory node, allow the SMEM device
> to be instantiated directly from the reserved-memory node.
> 
> The current means of falling back to dereferencing the "memory-region"
> is kept as a fallback, if it's determined that the SMEM node is a
> reserved-memory node.
> 
> The "qcom,smem" compatible is added to the reserved_mem_matches list, to
> allow the reserved-memory device to be probed.
> 
> In order to retain the readability of the code, the resolution of
> resources is split from the actual ioremapping.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
> 
> Changes since v1:
> - None
> 
>  drivers/of/platform.c   |  1 +

Acked-by: Rob Herring <robh@kernel.org>

>  drivers/soc/qcom/smem.c | 57 ++++++++++++++++++++++++++++-------------
>  2 files changed, 40 insertions(+), 18 deletions(-)