Re: [PATCH v3 1/3] pwm: make it possible to apply pwm changes in atomic context

From: Jani Nikula <jani.nikula@linux.intel.com>
To: "Sean Young" <sean@mess.org>,
	linux-media@vger.kernel.org, linux-pwm@vger.kernel.org,
	"Ivaylo Dimitrov" <ivo.g.dimitrov.75@gmail.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
	"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
	"Tvrtko Ursulin" <tvrtko.ursulin@linux.intel.com>,
	"David Airlie" <airlied@gmail.com>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Javier Martinez Canillas" <javierm@redhat.com>,
	"Jean Delvare" <jdelvare@suse.com>,
	"Guenter Roeck" <linux@roeck-us.net>,
	"Support Opensource" <support.opensource@diasemi.com>,
	"Dmitry Torokhov" <dmitry.torokhov@gmail.com>,
	"Pavel Machek" <pavel@ucw.cz>, "Lee Jones" <lee@kernel.org>,
	"Sean Young" <sean@mess.org>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Hans de Goede" <hdegoede@redhat.com>,
	"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
	"Mark Gross" <markgross@kernel.org>,
	"Liam Girdwood" <lgirdwood@gmail.com>,
	"Mark Brown" <broonie@kernel.org>,
	"Daniel Thompson" <daniel.thompson@linaro.org>,
	"Jingoo Han" <jingoohan1@gmail.com>,
	"Helge Deller" <deller@gmx.de>
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-hwmon@vger.kernel.org, linux-input@vger.kernel.org,
	linux-leds@vger.kernel.org, platform-driver-x86@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-fbdev@vger.kernel.org
Subject: Re: [PATCH v3 1/3] pwm: make it possible to apply pwm changes in atomic context
Date: Mon, 23 Oct 2023 13:47:44 +0300	[thread overview]
Message-ID: <87y1ftboof.fsf@intel.com> (raw)
In-Reply-To: <a7fcd19938d5422abc59c968ff7b3d5c275577ed.1697534024.git.sean@mess.org>

On Tue, 17 Oct 2023, Sean Young <sean@mess.org> wrote:
> diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c b/drivers/gpu/drm/i915/display/intel_backlight.c
> index 2e8f17c045222..cf516190cde8f 100644
> --- a/drivers/gpu/drm/i915/display/intel_backlight.c
> +++ b/drivers/gpu/drm/i915/display/intel_backlight.c
> @@ -274,7 +274,7 @@ static void ext_pwm_set_backlight(const struct drm_connector_state *conn_state,
>  	struct intel_panel *panel = &to_intel_connector(conn_state->connector)->panel;
>  
>  	pwm_set_relative_duty_cycle(&panel->backlight.pwm_state, level, 100);
> -	pwm_apply_state(panel->backlight.pwm, &panel->backlight.pwm_state);
> +	pwm_apply_cansleep(panel->backlight.pwm, &panel->backlight.pwm_state);
>  }
>  
>  static void
> @@ -427,7 +427,7 @@ static void ext_pwm_disable_backlight(const struct drm_connector_state *old_conn
>  	intel_backlight_set_pwm_level(old_conn_state, level);
>  
>  	panel->backlight.pwm_state.enabled = false;
> -	pwm_apply_state(panel->backlight.pwm, &panel->backlight.pwm_state);
> +	pwm_apply_cansleep(panel->backlight.pwm, &panel->backlight.pwm_state);
>  }
>  
>  void intel_backlight_disable(const struct drm_connector_state *old_conn_state)
> @@ -749,7 +749,7 @@ static void ext_pwm_enable_backlight(const struct intel_crtc_state *crtc_state,
>  
>  	pwm_set_relative_duty_cycle(&panel->backlight.pwm_state, level, 100);
>  	panel->backlight.pwm_state.enabled = true;
> -	pwm_apply_state(panel->backlight.pwm, &panel->backlight.pwm_state);
> +	pwm_apply_cansleep(panel->backlight.pwm, &panel->backlight.pwm_state);
>  }
>  
>  static void __intel_backlight_enable(const struct intel_crtc_state *crtc_state,

The i915 parts are

Acked-by: Jani Nikula <jani.nikula@intel.com>

for merging via whichever tree you find most convenient, and with
whatever naming you end up with.

-- 
Jani Nikula, Intel

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