From: Sam Ravnborg <sam@ravnborg.org>
To: dri-devel@lists.freedesktop.org,
Jingoo Han <jingoohan1@gmail.com>,
Lee Jones <lee.jones@linaro.org>,
Daniel Thompson <daniel.thompson@linaro.org>
Cc: "Daniel Vetter" <daniel.vetter@ffwll.ch>,
"Sam Ravnborg" <sam@ravnborg.org>,
"Alex Deucher" <alexander.deucher@amd.com>,
amd-gfx@lists.freedesktop.org,
"Andrzej Hajda" <a.hajda@samsung.com>,
"Christian König" <christian.koenig@amd.com>,
"Chris Wilson" <chris@chris-wilson.co.uk>,
"Ezequiel Garcia" <ezequiel@vanguardiasur.com.ar>,
"Hans de Goede" <hdegoede@redhat.com>,
"Hoegeun Kwon" <hoegeun.kwon@samsung.com>,
"Inki Dae" <inki.dae@samsung.com>,
"Jani Nikula" <jani.nikula@linux.intel.com>,
"Jernej Skrabec" <jernej.skrabec@siol.net>,
"Jonas Karlman" <jonas@kwiboo.se>,
"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
"Jyri Sarha" <jsarha@ti.com>,
"Kieran Bingham" <kieran.bingham+renesas@ideasonboard.com>,
"Konrad Dybcio" <konradybcio@gmail.com>,
"Laurent Pinchart" <laurent.pinchart@ideasonboard.com>,
"Linus Walleij" <linus.walleij@linaro.org>,
linux-renesas-soc@vger.kernel.org,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Manasi Navare" <manasi.d.navare@intel.com>,
"Neil Armstrong" <narmstrong@baylibre.com>,
"Patrik Jakobsson" <patrik.r.jakobsson@gmail.com>,
"Paweł Chmiel" <pawel.mikolaj.chmiel@gmail.com>,
"Philippe CORNU" <philippe.cornu@st.com>,
"Rob Clark" <robdclark@gmail.com>,
"Robert Chiras" <robert.chiras@nxp.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Sebastian Reichel" <sebastian.reichel@collabora.com>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Tomi Valkeinen" <tomi.valkeinen@ti.com>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
"Vinay Simha BN" <simhavcs@gmail.com>,
"Wambui Karuga" <wambui.karugax@gmail.com>,
"Zheng Bin" <zhengbin13@huawei.com>
Subject: [RFC PATCH v1 0/22] backlight: add init macros and accessors
Date: Sun, 2 Aug 2020 13:06:14 +0200 [thread overview]
Message-ID: <20200802110636.1018743-1-sam@ravnborg.org> (raw)
The backlight drivers uses several different patterns when registering
a backlight:
- Register backlight and assign properties later
- Define a local backlight_properties variable and use memset
- Define a const backlight_properties and assign relevant properties
On top of this there was differences in what members was assigned in
backlight_properties.
To align how backlight drivers are initialized introduce following helper macros:
- DECLARE_BACKLIGHT_INIT_FIRMWARE()
- DECLARE_BACKLIGHT_INIT_PLATFORM()
- DECLARE_BACKLIGHT_INIT_RAW()
The macros are introduced in patch 2.
The backlight drivers used direct access to backlight_properties.
Encapsulate these in get/set access operations resulting in following benefits:
- The drivers no longer need to be concerned about the confusing power states,
as there is now only a set_power_on() and set_power_off() operation.
- The access methods can be called with a NULL pointer so logic around the
access can be made simpler.
- The code is in most cases more readable with the access operations.
- When everyone uses the access methods refactroring in the backlight core is simpler.
The get/set operations are introduced in patch 3.
The first patch trims backlight_update_status() so it can be called with a NULL
backlight_device. Then the called do not need to add this check just to avoid
a NULL reference.
The fourth patch introduce the new macros and get/set operations for the
gpio backlight driver, as an example.
The remaining patches updates most backlight users in drivers/gpu/drm/*
With this patch set applied then:
- Almost all references to FB_BLANK* are gone from drm/*
- All panel drivers uses devm_ variant for registering backlight
- Almost all direct references to backlight properties are gone
The drm/* patches are used as examples how drivers can benefit from the
new macros and get/set operations.
Individual patches are only sent to the people listed in the patch + a few more.
Please check https://lore.kernel.org/dri-devel/ for the full series.
Feedback welcome!
Sam
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: Konrad Dybcio <konradybcio@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-renesas-soc@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Cc: Philippe CORNU <philippe.cornu@st.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Robert Chiras <robert.chiras@nxp.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Vinay Simha BN <simhavcs@gmail.com>
Cc: Wambui Karuga <wambui.karugax@gmail.com>
Cc: Zheng Bin <zhengbin13@huawei.com>
Sam Ravnborg (22):
backlight: Silently fail backlight_update_status() if no device
backlight: Add DECLARE_* macro for device registration
backlight: Add get/set operations for brightness/power properties
backlight: gpio: Use DECLARE_BACKLIGHT_INIT_RAW and get/setters
drm/gma500: Backlight support
drm/panel: asus-z00t-tm5p5-n35596: Backlight update
drm/panel: jdi-lt070me05000: Backlight update
drm/panel: novatek-nt35510: Backlight update
drm/panel: orisetech-otm8009a: Backlight update
drm/panel: raydium-rm67191: Backlight update
drm/panel: samsung-s6e63m0: Backlight update
drm/panel: samsung-s6e63j0x03: Backlight update
drm/panel: samsung-s6e3ha2: Backlight update
drm/panel: sony-acx424akp: Backlight update
drm/panel: sony-acx565akm: Backlight update
drm/bridge: parade-ps8622: Backlight update
drm/tilcdc: Backlight update
drm/radeon: Backlight update
drm/amdgpu/atom: Backlight update
drm/i915: Backlight update
drm/omap: display: Backlight update
drm/shmobile: Backlight update
drivers/gpu/drm/amd/amdgpu/atombios_encoders.c | 15 ++-
drivers/gpu/drm/bridge/parade-ps8622.c | 43 ++++----
drivers/gpu/drm/gma500/backlight.c | 35 ++----
drivers/gpu/drm/gma500/cdv_device.c | 29 +++--
drivers/gpu/drm/gma500/mdfld_device.c | 9 +-
drivers/gpu/drm/gma500/oaktrail_device.c | 10 +-
drivers/gpu/drm/gma500/opregion.c | 2 +-
drivers/gpu/drm/gma500/psb_device.c | 10 +-
drivers/gpu/drm/gma500/psb_drv.c | 8 +-
drivers/gpu/drm/i915/display/intel_panel.c | 88 +++++++--------
drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 35 ++----
.../gpu/drm/panel/panel-asus-z00t-tm5p5-n35596.c | 15 +--
drivers/gpu/drm/panel/panel-jdi-lt070me05000.c | 17 ++-
drivers/gpu/drm/panel/panel-novatek-nt35510.c | 9 +-
drivers/gpu/drm/panel/panel-orisetech-otm8009a.c | 14 +--
drivers/gpu/drm/panel/panel-raydium-rm67191.c | 11 +-
drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 68 ++++++------
drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c | 56 +++++-----
drivers/gpu/drm/panel/panel-samsung-s6e63m0.c | 25 ++---
drivers/gpu/drm/panel/panel-sony-acx424akp.c | 49 ++-------
drivers/gpu/drm/panel/panel-sony-acx565akm.c | 44 +++-----
drivers/gpu/drm/radeon/atombios_encoders.c | 23 ++--
drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 15 ++-
drivers/gpu/drm/shmobile/shmob_drm_backlight.c | 20 ++--
drivers/gpu/drm/tilcdc/tilcdc_panel.c | 11 +-
drivers/video/backlight/gpio_backlight.c | 17 ++-
include/linux/backlight.h | 120 +++++++++++++++++++++
27 files changed, 377 insertions(+), 421 deletions(-)
next reply other threads:[~2020-08-02 11:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-02 11:06 Sam Ravnborg [this message]
2020-08-02 11:06 ` [PATCH v1 22/22] drm/shmobile: Backlight update Sam Ravnborg
2020-08-04 16:51 ` [RFC PATCH v1 0/22] backlight: add init macros and accessors daniel
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