From: Thomas Zimmermann <tzimmermann@suse.de>
To: lee@kernel.org, daniel.thompson@linaro.org, jingoohan1@gmail.com,
deller@gmx.de, andy@kernel.org, robin@protonic.nl,
javierm@redhat.com
Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
linux-input@vger.kernel.org, linux-pwm@vger.kernel.org,
Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH v2 00/10] backlight: Replace struct fb_info in interfaces
Date: Wed, 21 Feb 2024 10:41:27 +0100 [thread overview]
Message-ID: <20240221094324.27436-1-tzimmermann@suse.de> (raw)
Backlight drivers implement struct backlight_ops.check_fb, which
uses struct fb_info in its interface. Replace the callback with one
that does not use fb_info.
In DRM, we have several drivers that implement backlight support. By
including <linux/backlight.h> these drivers depend on <linux/fb.h>.
At the same time, fbdev is deprecated for new drivers and likely to
be replaced on many systems.
This patchset is part of a larger effort to implement the backlight
code without depending on fbdev.
Patch 1 makes the backlight core match backlight and framebuffer
devices via struct fb_info.bl_dev. Patches 2 to 9 then go through
drivers and remove unnecessary implementations of check_fb. Finally,
patch 10 replaces the check_fb hook with controls_device, which
uses the framebuffer's Linux device instead of the framebuffer.
v2:
* fix hid-picolcd for CONFIG_FB_BACKLIGHT=n
* fixes to commit messages
Thomas Zimmermann (10):
backlight: Match backlight device against struct fb_info.bl_dev
auxdisplay/ht16k33: Remove struct backlight_ops.check_fb
hid/hid-picolcd: Fix initialization order
hid/hid-picolcd: Remove struct backlight_ops.check_fb
backlight/aat2870-backlight: Remove struct backlight.check_fb
backlight/pwm-backlight: Remove struct backlight_ops.check_fb
fbdev/sh_mobile_lcdc_fb: Remove struct backlight_ops.check_fb
fbdev/ssd1307fb: Init backlight before registering framebuffer
fbdev/ssd1307fb: Remove struct backlight_ops.check_fb
backlight: Add controls_device callback to struct backlight_ops
drivers/auxdisplay/ht16k33.c | 8 ------
drivers/hid/hid-picolcd_backlight.c | 7 ------
drivers/hid/hid-picolcd_core.c | 14 +++++------
drivers/hid/hid-picolcd_fb.c | 6 +++++
drivers/video/backlight/aat2870_bl.c | 7 ------
drivers/video/backlight/backlight.c | 9 +++++--
drivers/video/backlight/bd6107.c | 12 ++++-----
drivers/video/backlight/gpio_backlight.c | 12 ++++-----
drivers/video/backlight/lv5207lp.c | 12 ++++-----
drivers/video/backlight/pwm_bl.c | 12 ---------
drivers/video/fbdev/sh_mobile_lcdcfb.c | 7 ------
drivers/video/fbdev/ssd1307fb.c | 31 +++++++++---------------
include/linux/backlight.h | 16 ++++++------
include/linux/pwm_backlight.h | 1 -
14 files changed, 57 insertions(+), 97 deletions(-)
--
2.43.0
next reply other threads:[~2024-02-21 9:43 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-21 9:41 Thomas Zimmermann [this message]
2024-02-21 9:41 ` [PATCH v2 01/10] backlight: Match backlight device against struct fb_info.bl_dev Thomas Zimmermann
2024-02-21 14:34 ` Andy Shevchenko
2024-02-21 15:44 ` Thomas Zimmermann
2024-02-21 16:46 ` Andy Shevchenko
2024-02-23 10:53 ` Lee Jones
2024-02-21 9:41 ` [PATCH v2 02/10] auxdisplay/ht16k33: Remove struct backlight_ops.check_fb Thomas Zimmermann
2024-02-21 14:35 ` Andy Shevchenko
2024-02-21 9:41 ` [PATCH v2 03/10] hid/hid-picolcd: Fix initialization order Thomas Zimmermann
2024-02-21 9:41 ` [PATCH v2 04/10] hid/hid-picolcd: Remove struct backlight_ops.check_fb Thomas Zimmermann
2024-02-21 9:41 ` [PATCH v2 05/10] backlight/aat2870-backlight: Remove struct backlight.check_fb Thomas Zimmermann
2024-02-21 9:41 ` [PATCH v2 06/10] backlight/pwm-backlight: Remove struct backlight_ops.check_fb Thomas Zimmermann
2024-02-21 9:41 ` [PATCH v2 07/10] fbdev/sh_mobile_lcdc_fb: " Thomas Zimmermann
2024-02-21 9:41 ` [PATCH v2 08/10] fbdev/ssd1307fb: Init backlight before registering framebuffer Thomas Zimmermann
2024-02-21 9:41 ` [PATCH v2 09/10] fbdev/ssd1307fb: Remove struct backlight_ops.check_fb Thomas Zimmermann
2024-02-21 9:41 ` [PATCH v2 10/10] backlight: Add controls_device callback to struct backlight_ops Thomas Zimmermann
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