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bh=PK3idIyd9gCCDEazD/FLS4OkOLntCLd8x9crOExzJXc=; b=bSJE8x2A3SRTFrFpwM8rCuyl3RpLfNSzAK9mkUmJy7ZGP0DKewlTlVgDBGoADZrBhkTcwn dDgWWKeHMLD5ExAg== Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id E159713A0E; Mon, 12 Feb 2024 16:26:48 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id Fhp0NchGymXmXgAAn2gu4w (envelope-from ); Mon, 12 Feb 2024 16:26:48 +0000 From: Thomas Zimmermann To: lee@kernel.org, daniel.thompson@linaro.org, jingoohan1@gmail.com, deller@gmx.de, 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 Subject: [PATCH 00/10] backlight: Replace struct fb_info in interfaces Date: Mon, 12 Feb 2024 17:16:33 +0100 Message-ID: <20240212162645.5661-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Authentication-Results: smtp-out2.suse.de; none X-Spamd-Result: default: False [0.85 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com,gmx.de]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCPT_COUNT_SEVEN(0.00)[10]; MID_CONTAINS_FROM(1.00)[]; FREEMAIL_TO(0.00)[kernel.org,linaro.org,gmail.com,gmx.de,redhat.com]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-0.05)[59.41%] X-Spam-Level: X-Spam-Flag: NO X-Spam-Score: 0.85 Backlight drivers implement struct backlight_ops.check_fb, which uses struct fb_info in its interface. Replace the callback with one the does not use fb_info. In DRM, we have several drivers that implement backlight support. By including these drivers depend on . 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. 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 | 4 +++ 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, 55 insertions(+), 97 deletions(-)