linux-kernel - Re: [PATCH v4 5/6] i2c: smbus: Support DDR5 SPD EEPROMs

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Message-ID: <c939b0c7-2c8c-4cf1-8d5c-9309ce0b371a@gmx.de>
Date: Fri, 7 Jun 2024 18:06:47 +0200
From: Armin Wolf <W_Armin@....de>
To: Guenter Roeck <linux@...ck-us.net>, linux-hwmon@...r.kernel.org
Cc: linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
 devicetree@...r.kernel.org, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Wolfram Sang <wsa+renesas@...g-engineering.com>,
 René Rebe <rene@...ctcode.de>,
 Thomas Weißschuh <linux@...ssschuh.net>,
 Stephen Horvath <s.horvath@...look.com.au>
Subject: Re: [PATCH v4 5/6] i2c: smbus: Support DDR5 SPD EEPROMs

Am 04.06.24 um 06:02 schrieb Guenter Roeck:

> Detect DDR5 memory and instantiate the SPD5118 driver automatically.

Hi,

the text "Only works for DDR, DDR2, DDR3 and DDR4 for now" should be updated too.
With this fixed:

Reviewed-by: Armin Wolf <W_Armin@....de>

>
> Suggested-by: Thomas Weißschuh <linux@...ssschuh.net>
> Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
> ---
> v5: New patch
>
>   drivers/i2c/i2c-smbus.c | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/drivers/i2c/i2c-smbus.c b/drivers/i2c/i2c-smbus.c
> index 97f338b123b1..8a0dab835761 100644
> --- a/drivers/i2c/i2c-smbus.c
> +++ b/drivers/i2c/i2c-smbus.c
> @@ -382,6 +382,10 @@ void i2c_register_spd(struct i2c_adapter *adap)
>   	case 0x1E:	/* LPDDR4 */
>   		name = "ee1004";
>   		break;
> +	case 0x22:	/* DDR5 */
> +	case 0x23:	/* LPDDR5 */
> +		name = "spd5118";
> +		break;
>   	default:
>   		dev_info(&adap->dev,
>   			 "Memory type 0x%02x not supported yet, not instantiating SPD\n",