linux-kernel - Re: [PATCH 4/6] ASoC: codecs: wsa884x: parse port-mapping information

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAA8EJppRkyMHmmLWzQumpB25fFkAq8Mji=LsPUsWeoLOpsja3Q@mail.gmail.com>
Date: Thu, 27 Jun 2024 18:12:20 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, Banajit Goswami <bgoswami@...cinc.com>, 
	Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konrad.dybcio@...aro.org>, linux-arm-msm@...r.kernel.org, 
	Neil Armstrong <neil.armstrong@...aro.org>, alsa-devel@...a-project.org, 
	linux-sound@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/6] ASoC: codecs: wsa884x: parse port-mapping information

On Thu, 27 Jun 2024 at 17:16, Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 27/06/2024 15:38, Dmitry Baryshkov wrote:
> > On Thu, Jun 27, 2024 at 12:55:20PM GMT, Srinivas Kandagatla wrote:
> >> Add support to parse static master port map information from device tree.
> >> This is required for correct port mapping between soundwire device and
> >> master ports.
> >>
> >> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> >> ---
> >>  sound/soc/codecs/wsa884x.c | 8 ++++++++
> >>  1 file changed, 8 insertions(+)
> >>
> >> diff --git a/sound/soc/codecs/wsa884x.c b/sound/soc/codecs/wsa884x.c
> >> index a9767ef0e39d..72ff71bfb827 100644
> >> --- a/sound/soc/codecs/wsa884x.c
> >> +++ b/sound/soc/codecs/wsa884x.c
> >> @@ -1887,6 +1887,14 @@ static int wsa884x_probe(struct sdw_slave *pdev,
> >>      wsa884x->sconfig.direction = SDW_DATA_DIR_RX;
> >>      wsa884x->sconfig.type = SDW_STREAM_PDM;
> >>
> >> +    /**
> >> +     * Port map index starts with 0, however the data port for this codec
> >> +     * are from index 1
> >> +     */
> >> +    if (of_property_read_u32_array(dev->of_node, "qcom,port-mapping", &pdev->m_port_map[1],
> >> +                                    WSA884X_MAX_SWR_PORTS))
> >> +            dev_info(dev, "Static Port mapping not specified\n");
> >
> > Same comment. Either dev_warn (if it's something to warn about) or
> > dev_info.
> >
> > Or, as your commit message mentions that it is required, it should be an
> > error if the port mapping is not specified.
>
> That would be an ABI break.

Ok. So make it required just for new platforms. My point is that
dev_info here is pretty pointless.


-- 
With best wishes
Dmitry