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mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from IA0PR11MB7307.namprd11.prod.outlook.com (2603:10b6:208:437::10) by IA1PR11MB6265.namprd11.prod.outlook.com (2603:10b6:208:3e7::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9632.22; Tue, 24 Feb 2026 02:56:06 +0000 Received: from IA0PR11MB7307.namprd11.prod.outlook.com ([fe80::9d4a:f89:f548:dbc7]) by IA0PR11MB7307.namprd11.prod.outlook.com ([fe80::9d4a:f89:f548:dbc7%6]) with mapi id 15.20.9632.017; Tue, 24 Feb 2026 02:56:06 +0000 Message-ID: <168b4149-b5ee-4c18-bfe7-143b8bc0c2f9@intel.com> Date: Tue, 24 Feb 2026 08:25:55 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 4/8] drm/i915/backlight: Check luminance_set when disabling PWM via AUX VESA backlight To: Suraj Kandpal , , CC: References: <20260220050217.2453681-1-suraj.kandpal@intel.com> <20260220050217.2453681-5-suraj.kandpal@intel.com> Content-Language: en-US From: "Murthy, Arun R" In-Reply-To: <20260220050217.2453681-5-suraj.kandpal@intel.com> Content-Type: text/plain; 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We do this since it is also used to decide if > we are enabling PWM backlight funcs or not. > > Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/15671 > Signed-off-by: Suraj Kandpal > --- Reviewed-by: Arun R Murthy Thanks and Regards, Arun R Murthy ------------------- > drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c > index cb39696491a1..a921bb4ccacf 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c > +++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c > @@ -511,7 +511,8 @@ static void intel_dp_aux_vesa_disable_backlight(const struct drm_connector_state > > drm_edp_backlight_disable(&intel_dp->aux, &panel->backlight.edp.vesa.info); > > - if (!panel->backlight.edp.vesa.info.aux_enable) > + if (!(panel->backlight.edp.vesa.info.aux_enable || > + panel->backlight.edp.vesa.info.luminance_set)) > panel->backlight.pwm_funcs->disable(old_conn_state, > intel_backlight_invert_pwm_level(connector, 0)); > }