linux-kernel - Re: [PATCH v1 1/2] platform/x86: oxpec: Fix turbo register for G1 AMD

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Message-ID: <710baf02-fc18-6752-b8bd-bbf1354227e8@linux.intel.com>
Date: Tue, 22 Jul 2025 16:22:04 +0300 (EEST)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Antheas Kapenekakis <lkml@...heas.dev>
cc: platform-driver-x86@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>, 
    Derek John Clark <derekjohn.clark@...il.com>, 
    Joaquín Ignacio Aramendía <samsagax@...il.com>, 
    Hans de Goede <hdegoede@...hat.com>, Eileen <eileen@...-netbook.com>
Subject: Re: [PATCH v1 1/2] platform/x86: oxpec: Fix turbo register for G1
 AMD

On Fri, 18 Jul 2025, Antheas Kapenekakis wrote:

> Turns out that the AMD variant of the G1 uses different turbo registers
> than the Intel variant. Differentiate them and apply the correct ones
> to the AMD variant.
> 
> Fixes: b369395c895b ("platform/x86: oxpec: Add support for the OneXPlayer G1")
> Signed-off-by: Antheas Kapenekakis <lkml@...heas.dev>
> ---
>  drivers/platform/x86/oxpec.c | 37 +++++++++++++++++++++++-------------
>  1 file changed, 24 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/platform/x86/oxpec.c b/drivers/platform/x86/oxpec.c
> index 06759036945d..9839e8cb82ce 100644
> --- a/drivers/platform/x86/oxpec.c
> +++ b/drivers/platform/x86/oxpec.c
> @@ -58,7 +58,8 @@ enum oxp_board {
>  	oxp_mini_amd_a07,
>  	oxp_mini_amd_pro,
>  	oxp_x1,
> -	oxp_g1,
> +	oxp_g1_i,
> +	oxp_g1_a,
>  };
>  
>  static enum oxp_board board;
> @@ -247,14 +248,14 @@ static const struct dmi_system_id dmi_table[] = {
>  			DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"),
>  			DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER G1 A"),
>  		},
> -		.driver_data = (void *)oxp_g1,
> +		.driver_data = (void *)oxp_g1_a,
>  	},
>  	{
>  		.matches = {
>  			DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"),
>  			DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER G1 i"),
>  		},
> -		.driver_data = (void *)oxp_g1,
> +		.driver_data = (void *)oxp_g1_i,
>  	},
>  	{
>  		.matches = {


> -	case oxp_g1:
> +	case oxp_g1_i:
>  		return read_from_ec(OXP_2_SENSOR_FAN_REG, 2, val);
> @@ -757,6 +765,7 @@ static int oxp_pwm_fan_speed(long *val)
> +	case oxp_g1_a:
>  		return read_from_ec(OXP_SENSOR_FAN_REG, 2, val);

> -	case oxp_g1:
> +	case oxp_g1_i:
>  		/* scale to range [0-184] */
>  		val = (val * 184) / 255;
>  		return write_to_ec(OXP_SENSOR_PWM_REG, val);
> @@ -796,6 +805,7 @@ static int oxp_pwm_input_write(long val)
> +	case oxp_g1_a:
>  		return write_to_ec(OXP_SENSOR_PWM_REG, val);
> @@ -816,7 +826,7 @@ static int oxp_pwm_input_read(long *val)
> -	case oxp_g1:
> +	case oxp_g1_i:
>  		ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val);
> @@ -842,6 +852,7 @@ static int oxp_pwm_input_read(long *val)
> +	case oxp_g1_a:
>  	default:
>  		ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val);

Do these FAN and PWM registers fall under what is described in the 
changelog as "turbo registers"? Or did you extend the scope of this patch 
and forgot to update the changelog?


-- 
 i.