linux-kernel - Re: [PATCH RFC 4/5] drm/msm/hdmi: deprecate non standard clock-names

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Message-ID: <55C8A497.9050600@linaro.org>
Date:	Mon, 10 Aug 2015 14:18:15 +0100
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Thierry Reding <thierry.reding@...il.com>
CC:	dri-devel@...ts.freedesktop.org, robdclark@...il.com,
	David Airlie <airlied@...ux.ie>, linux-kernel@...r.kernel.org,
	Rob Herring <robh+dt@...nel.org>, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH RFC 4/5] drm/msm/hdmi: deprecate non standard clock-names



On 10/08/15 13:49, Thierry Reding wrote:
> On Mon, Aug 10, 2015 at 12:59:49PM +0100, Srinivas Kandagatla wrote:
>> This patch updates the bindings to discourage the usage of non standard
>> clock names, this will help in projects focused on upstreaming.
>>
>> These deprecated properties are still supported but will be remove over
>> the time.
>>
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>> ---
>>   Documentation/devicetree/bindings/drm/msm/hdmi.txt | 16 ++++++++--------
>>   1 file changed, 8 insertions(+), 8 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/drm/msm/hdmi.txt b/Documentation/devicetree/bindings/drm/msm/hdmi.txt
>> index 6dc202e..6fbfdd8 100644
>> --- a/Documentation/devicetree/bindings/drm/msm/hdmi.txt
>> +++ b/Documentation/devicetree/bindings/drm/msm/hdmi.txt
>> @@ -12,16 +12,16 @@ Required properties:
>>   - clocks: device clocks
>>   - clock-names: Corresponding name for each entry in the clocks property.
>>    for "qcom,hdmi-tx-8960" compatible names should be
>> -	"core_clk"
>> -	"master_iface_clk"
>> -	"slave_iface_clk"
>> +	"core_clk" is deprecated, use "core" instead
>> +	"master_iface_clk" is deprecated, use "master_iface" instead
>> +	"slave_iface_clk" is deprecated, use "slave_iface" instead
>>
>>    for "qcom,hdmi-tx-8084" and "qcom,hdmi-tx-8074" compatible names should be
>> -	"extp_clk"
>> -	"alt_iface_clk"
>> -	"iface_clk"
>> -	"core_clk"
>> -	"mdp_core_clk"
>> +	"extp_clk" is deprecated, use "extp" instead
>> +	"alt_iface_clk" is deprecated, use "alt_iface" intstead
>> +	"iface_clk" is deprecated, use "iface" instead
>> +	"core_clk" is deprecated, use "core" instead
>> +	"mdp_core_clk" is deprecated, use "mdp_core" instead
>
> Shouldn't there be a driver counterpart of this to accept the new names?
Driver changes are in this same series "[PATCH RFC 5/5] drm/msm/hdmi: 
remove _clk suffix from clock names"(https://lkml.org/lkml/2015/8/10/453)

--srini
> Otherwise people could be switching the DTS to the new value, but the
> driver won't find the clocks it's looking for.
>
> Thierry
>
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