linux-kernel - Re: [v2,1/1] i2c: designware: Add SMBus Quick Command support

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Message-ID: <22275459-94ec-4336-af2f-5d3700935725@linux.intel.com>
Date: Mon, 14 Apr 2025 12:18:11 +0300
From: Jarkko Nikula <jarkko.nikula@...ux.intel.com>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>,
 ende.tan@...rfivetech.com, linux-i2c@...r.kernel.org,
 andriy.shevchenko@...ux.intel.com, mika.westerberg@...ux.intel.com,
 jsd@...ihalf.com, andi.shyti@...nel.org, linux-kernel@...r.kernel.org,
 leyfoon.tan@...rfivetech.com, endeneer@...il.com
Subject: Re: [v2,1/1] i2c: designware: Add SMBus Quick Command support

On 4/14/25 12:02 PM, Wolfram Sang wrote:
> 
>> +#define DW_IC_TAR_SMBUS_QUICK_CMD		BIT(16)
> 
> This bit does not exist on the instance in the Renesas RZ/N1D SoC. So,
> this patch needs some versioning which HW can do this and which can't.
> 
Yes, SMBUS features are only available starting from IP version 2.00a.