[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20200323125215.GO72691@vkoul-mobl>
Date: Mon, 23 Mar 2020 18:22:15 +0530
From: Vinod Koul <vkoul@...nel.org>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
tiwai@...e.de, broonie@...nel.org, gregkh@...uxfoundation.org,
jank@...ence.com, slawomir.blauciak@...el.com,
Bard liao <yung-chuan.liao@...ux.intel.com>,
Rander Wang <rander.wang@...ux.intel.com>,
Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
Hui Wang <hui.wang@...onical.com>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Sanyog Kale <sanyog.r.kale@...el.com>,
"open list:ARM/QUALCOMM SUPPORT" <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH 5/5] soundwire: qcom: add sdw_master_device support
On 20-03-20, 17:01, Srinivas Kandagatla wrote:
>
>
> On 20/03/2020 16:29, Pierre-Louis Bossart wrote:
> > Add new device as a child of the platform device, following the
> > following hierarchy:
> >
> > platform_device
> > sdw_master_device
> > sdw_slave0
>
> Why can't we just remove the platform device layer here and add
> sdw_master_device directly?
In the case platform_device is the OF device your controller gets probed
on.
My thinking on this is that drivers should not be directly creating
sdw_master_device but it should be done by core as this device is for
core to use and handle. Ideally I would love that sdw_master_device is
created/handled by core, preferably this be handled as part of
sdw_add_bus_master().
But Pierre is trying to solve the limitation of the devices given by
ACPI and trying to add sdw_master_driver to handle that. I am not
convinced that we should do that.
--
~Vinod
Powered by blists - more mailing lists