linux-kernel - Re: [PATCH] i2c: piix4: Register SPDs

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Date: Thu, 30 May 2024 16:10:52 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Thomas Weißschuh <linux@...ssschuh.net>,
 Andi Shyti <andi.shyti@...nel.org>, Jean Delvare <jdelvare@...e.com>
Cc: linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
 Wolfram Sang <wsa+renesas@...g-engineering.com>
Subject: Re: [PATCH] i2c: piix4: Register SPDs

On 5/30/24 14:49, Thomas Weißschuh wrote:
> The piix4 I2C bus can carry SPDs, register them if present.
> 
> Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
> ---
> For my test setup see [0].
> While the spd5118 driver in that form shouldn't be probed this way, the
> general principle holds true for the other SPD drivers.
> 
> Guenter offered to test it, too.
> 

Perfect. With this patch in place, I see:

[    6.679772] i2c i2c-0: Successfully instantiated SPD at 0x50
[    6.680341] i2c i2c-0: Successfully instantiated SPD at 0x51
[    6.680905] i2c i2c-0: Successfully instantiated SPD at 0x52
[    6.681466] i2c i2c-0: Successfully instantiated SPD at 0x53

on multiple AMD based systems with DDR4.

Tested-by: Guenter Roeck <linux@...ck-us.net>

Thanks!

Guenter