linux-kernel - Re: [PATCH 2/2] mux: mmio: Extend mmio-mux driver to configure mux with mux-reg-masks-state

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Message-ID: <e70f685c-ec03-4e87-8e5b-963bd9ebb2f1@ti.com>
Date: Thu, 5 Jun 2025 12:11:54 +0530
From: Chintan Vankar <c-vankar@...com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
        Thorsten Blum
	<thorsten.blum@...ux.dev>, Andrew Davis <afd@...com>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Rob Herring
	<robh@...nel.org>, Peter Rosin <peda@...ntia.se>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <s-vadapalli@...com>, <vigneshr@...com>, <nm@...com>,
        <danishanwar@...com>
Subject: Re: [PATCH 2/2] mux: mmio: Extend mmio-mux driver to configure mux
 with mux-reg-masks-state

Hello Krzysztof,

On 05/06/25 12:06, Krzysztof Kozlowski wrote:
> On 05/06/2025 08:34, Chintan Vankar wrote:
>> MMIO mux driver is designed to parse "mux-reg-masks" and "idle-states"
>> property independently to configure mux. The current design is complex for
>> the devices with larger memory space, which requires synchronization
>> between the two properties.
>>
>> Extend mmio-mux driver to support a single property, "mux-reg-masks-state"
>> which configures mux registers without above constraint.
>>
>> Signed-off-by: Chintan Vankar <c-vankar@...com>
>> ---
>>   drivers/mux/mmio.c | 144 +++++++++++++++++++++++++++++++++++++--------
>>   1 file changed, 118 insertions(+), 26 deletions(-)
>>
>> diff --git a/drivers/mux/mmio.c b/drivers/mux/mmio.c
>> index 9993ce38a818..5ce9c16fd431 100644
>> --- a/drivers/mux/mmio.c
>> +++ b/drivers/mux/mmio.c
>> @@ -2,7 +2,7 @@
>>   /*
>>    * MMIO register bitfield-controlled multiplexer driver
>>    *
>> - * Copyright (C) 2017 Pengutronix, Philipp Zabel <kernel@...gutronix.de>
>> + * Copyright (C) 2017-2025 Pengutronix, Philipp Zabel <kernel@...gutronix.de>
> 
> Why are you updating someone's copyrights?
> 

Yes, I forgot to modify from the RFC series. I will keep it unmodified
in the next version.

Regards,
Chintan.

> 
> Best regards,
> Krzysztof