linux-kernel - Re: [PATCH v2 2/5] dt-bindings: clock: Add i.MX91 clock definition

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Date: Wed, 5 Jun 2024 10:24:38 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Pengfei Li <pengfei.li_1@....com>, Rob Herring <robh@...nel.org>
Cc: krzk+dt@...nel.org, conor+dt@...nel.org, abelvesa@...nel.org,
 mturquette@...libre.com, sboyd@...nel.org, shawnguo@...nel.org,
 s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
 ping.bai@....com, ye.li@....com, peng.fan@....com, aisheng.dong@....com,
 frank.li@....com, tharvey@...eworks.com, alexander.stein@...tq-group.com,
 gregor.herburger@...tq-group.com, hiago.franco@...adex.com,
 joao.goncalves@...adex.com, hvilleneuve@...onoff.com,
 Markus.Niebel@...tq-group.com, m.felsch@...gutronix.de,
 m.othacehe@...il.com, bhelgaas@...gle.com, leoyang.li@....com,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-clk@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 2/5] dt-bindings: clock: Add i.MX91 clock definition

On 06/06/2024 02:23, Pengfei Li wrote:
> On Tue, Jun 04, 2024 at 10:04:47AM -0500, Rob Herring wrote:
>> On Wed, May 29, 2024 at 07:26:31PM -0700, Pengfei Li wrote:
>>> i.MX91 is similar with i.MX93, only add few new clock compared to i.MX93.
>>> Add i.MX91 related clock definition.
>>>
>>> Signed-off-by: Pengfei Li <pengfei.li_1@....com>
>>> Reviewed-by: Frank Li <Frank.Li@....com>
>>> ---
>>>  include/dt-bindings/clock/imx93-clock.h | 7 ++++++-
>>>  1 file changed, 6 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/include/dt-bindings/clock/imx93-clock.h b/include/dt-bindings/clock/imx93-clock.h
>>> index 787c9e74dc96..ca0785f35a46 100644
>>> --- a/include/dt-bindings/clock/imx93-clock.h
>>> +++ b/include/dt-bindings/clock/imx93-clock.h
>>> @@ -204,6 +204,11 @@
>>>  #define IMX93_CLK_A55_SEL		199
>>>  #define IMX93_CLK_A55_CORE		200
>>>  #define IMX93_CLK_PDM_IPG		201
>>> -#define IMX93_CLK_END			202
>>> +#define IMX91_CLK_ENET1_QOS_TSN     202
>>> +#define IMX91_CLK_ENET_TIMER        203
>>> +#define IMX91_CLK_ENET2_REGULAR     204
>>> +#define IMX91_CLK_ENET2_REGULAR_GATE		205
>>> +#define IMX91_CLK_ENET1_QOS_TSN_GATE		206
>>> +#define IMX93_CLK_END			207
>>
>> Drop the END define. If it can change, it's not part of the ABI.
>>
>> Rob
>>
> 
> Hi Rob Herring,
> 
> The 'IMX93_CLK_END' macro definition is indeed not a certain clock, but it is
> used in the imx93 ccm driver to indicate the number of clocks. And this macro
> already existed before this patch, so it may not be able to be deleted.

May be. Trust me. Fix your driver first.


Best regards,
Krzysztof