summaryrefslogtreecommitdiffstats
path: root/drivers/auxdisplay
Commit message (Collapse)AuthorAgeFilesLines
* treewide: Switch/rename to timer_delete[_sync]()Thomas Gleixner2025-04-052-6/+6
| | | | | | | | | | timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
* auxdisplay: hd44780: Rename hd to hdc in hd44780_common_alloc()Andy Shevchenko2025-03-101-6/+6
| | | | | | | | | The hd44780_common_alloc() uses hd for local variable while the respective header uses hdc, rename to make it consistent and avoid potential confuse with the drivers that use both for different reasons. No functional changes intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: hd44780: Call charlcd_alloc() from hd44780_common_alloc()Andy Shevchenko2025-03-104-32/+21
| | | | | | | | | | HD44780 APIs all operate on struct charlcd objects. Moreover, the current users always call charlcd_alloc() and hd44780_common_alloc(). Make the latter call the former, so eliminate the additional allocation, to make it consistent with the rest of API and avoid duplication. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
* auxdisplay: panel: Make use of hd44780_common_free()Andy Shevchenko2025-03-101-2/+2
| | | | | | | Use the symmetrical API to free the common resources. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
* auxdisplay: hd44780: Make use of hd44780_common_free()Andy Shevchenko2025-03-101-3/+2
| | | | | | | Use the symmetrical API to free the common resources. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
* auxdisplay: hd44780: Introduce hd44780_common_free()Andy Shevchenko2025-03-102-0/+8
| | | | | | | | | Introduce hd44780_common_free() for symmetrical operation to hd44780_common_alloc(). It will allow to modify both in the future without touching the users. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
* auxdisplay: lcd2s: Allocate memory for custom data in charlcd_alloc()Andy Shevchenko2025-03-101-8/+4
| | | | | | | | Allocate memory for custom data in charlcd_alloc() instead of doing that explicitly in the driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
* auxdisplay: charlcd: Partially revert "Move hwidth and bwidth to struct ↵Andy Shevchenko2025-03-105-7/+9
| | | | | | | | | | | | hd44780_common" Commit 2545c1c948a6 ("auxdisplay: Move hwidth and bwidth to struct hd44780_common") makes charlcd_alloc() argument-less effectively dropping the single allocation for the struct charlcd_priv object along with the driver specific one. Restore that behaviour here. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
* auxdisplay: panel: Fix an API misuse in panel.cAndy Shevchenko2025-02-241-2/+2
| | | | | | | | | | Variable allocated by charlcd_alloc() should be released by charlcd_free(). The following patch changed kfree() to charlcd_free() to fix an API misuse. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Fixes: 718e05ed92ec ("auxdisplay: Introduce hd44780_common.[ch]") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: hd44780: Fix an API misuse in hd44780.cHaoxiang Li2025-02-241-2/+2
| | | | | | | | | | | | Variable allocated by charlcd_alloc() should be released by charlcd_free(). The following patch changed kfree() to charlcd_free() to fix an API misuse. Fixes: 718e05ed92ec ("auxdisplay: Introduce hd44780_common.[ch]") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: MAX6959 should select BITREVERSEGeert Uytterhoeven2025-02-201-0/+1
| | | | | | | | | | | | If CONFIG_BITREVERSE is not enabled: max6959.c:(.text+0x92): undefined reference to `byte_rev_table' Fixes: a9bcd02fa42217c7 ("auxdisplay: Add driver for MAX695x 7-segment LED controllers") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/202502161703.3Vr4M7qg-lkp@intel.com/ Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: seg-led-gpio: use gpiod_multi_set_value_cansleepDavid Lechner2025-02-121-2/+1
| | | | | | | | | | | Reduce verbosity by using gpiod_multi_set_value_cansleep() instead of gpiod_set_array_value_cansleep(). Acked-by: Andy Shevchenko <andy@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* Merge tag 'auxdisplay-v6.14-1' of ↵Linus Torvalds2025-01-241-5/+3
|\ | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay Pull auxdisplay updates from Andy Shevchenko: - A couple of cleanups to img-ascii-lcd driver * tag 'auxdisplay-v6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay: auxdisplay: img-ascii-lcd: Constify struct img_ascii_lcd_config auxdisplay: img-ascii-lcd: Remove an unused field in struct img_ascii_lcd_ctx
| * auxdisplay: img-ascii-lcd: Constify struct img_ascii_lcd_configChristophe JAILLET2024-12-101-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'struct img_ascii_lcd_config' is not modified in this driver. Constifying this structure moves some data to a read-only section, so increase overall security, especially when the structure holds some function pointers. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 6110 728 0 6838 1ab6 drivers/auxdisplay/img-ascii-lcd.o After: ===== text data bss dec hex filename 6198 632 0 6830 1aae drivers/auxdisplay/img-ascii-lcd.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| * auxdisplay: img-ascii-lcd: Remove an unused field in struct img_ascii_lcd_ctxChristophe JAILLET2024-12-101-2/+0
| | | | | | | | | | | | | | | | | | Remove 'cfg' from struct img_ascii_lcd_ctx. It is unused since commit 7e76aece6f03 ("auxdisplay: Extract character line display core support") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* | Merge tag 'drm-misc-fixes-2024-12-19' of ↵Dave Airlie2024-12-201-1/+1
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes drm-misc-fixes for v6.13-rc4: - udma-buf fixes related to sealing. - dma-buf build warning fix when debugfs is not enabled. - Assorted drm/panel fixes. - Correct error return in drm_dp_tunnel_mgr_create. - Fix even more divide by zero in drm_mode_vrefresh. - Fix FBDEV dependencies in Kconfig. - Documentation fix for drm_sched_fini. - IVPU NULL pointer, memory leak and WARN fix. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/d0763051-87b7-483e-89e0-a9f993383450@linux.intel.com
| * fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICEThomas Zimmermann2024-12-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not select BACKLIGHT_CLASS_DEVICE from FB_BACKLIGHT. The latter only controls backlight support within fbdev core code and data structures. Make fbdev drivers depend on BACKLIGHT_CLASS_DEVICE and let users select it explicitly. Fixes warnings about recursive dependencies, such as error: recursive dependency detected! symbol BACKLIGHT_CLASS_DEVICE is selected by FB_BACKLIGHT symbol FB_BACKLIGHT is selected by FB_SH_MOBILE_LCDC symbol FB_SH_MOBILE_LCDC depends on FB_DEVICE symbol FB_DEVICE depends on FB_CORE symbol FB_CORE is selected by DRM_GEM_DMA_HELPER symbol DRM_GEM_DMA_HELPER is selected by DRM_PANEL_ILITEK_ILI9341 symbol DRM_PANEL_ILITEK_ILI9341 depends on BACKLIGHT_CLASS_DEVICE BACKLIGHT_CLASS_DEVICE is user-selectable, so making drivers adapt to it is the correct approach in any case. For most drivers, backlight support is also configurable separately. v3: - Select BACKLIGHT_CLASS_DEVICE in PowerMac defconfigs (Christophe) - Fix PMAC_BACKLIGHT module dependency corner cases (Christophe) v2: - s/BACKLIGHT_DEVICE_CLASS/BACKLIGHT_CLASS_DEVICE (Helge) - Fix fbdev driver-dependency corner case (Arnd) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://patchwork.freedesktop.org/patch/msgid/20241216074450.8590-2-tzimmermann@suse.de
* | module: Convert symbol namespace to string literalPeter Zijlstra2024-12-025-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up the existing export namespace code along the same lines of commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo) to __section("foo")") and for the same reason, it is not desired for the namespace argument to be a macro expansion itself. Scripted using git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file; do awk -i inplace ' /^#define EXPORT_SYMBOL_NS/ { gsub(/__stringify\(ns\)/, "ns"); print; next; } /^#define MODULE_IMPORT_NS/ { gsub(/__stringify\(ns\)/, "ns"); print; next; } /MODULE_IMPORT_NS/ { $0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g"); } /EXPORT_SYMBOL_NS/ { if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) { if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ && $0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ && $0 !~ /^my/) { getline line; gsub(/[[:space:]]*\\$/, ""); gsub(/[[:space:]]/, "", line); $0 = $0 " " line; } $0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/, "\\1(\\2, \"\\3\")", "g"); } } { print }' $file; done Requested-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc Acked-by: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Get rid of 'remove_new' relic from platform driver structLinus Torvalds2024-12-014-4/+4
|/ | | | | | | | | | | | | | | | | | | | | | | | | The continual trickle of small conversion patches is grating on me, and is really not helping. Just get rid of the 'remove_new' member function, which is just an alias for the plain 'remove', and had a comment to that effect: /* * .remove_new() is a relic from a prototype conversion of .remove(). * New drivers are supposed to implement .remove(). Once all drivers are * converted to not use .remove_new any more, it will be dropped. */ This was just a tree-wide 'sed' script that replaced '.remove_new' with '.remove', with some care taken to turn a subsequent tab into two tabs to make things line up. I did do some minimal manual whitespace adjustment for places that used spaces to line things up. Then I just removed the old (sic) .remove_new member function, and this is the end result. No more unnecessary conversion noise. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'auxdisplay-v6.13-1' of ↵Linus Torvalds2024-11-203-18/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay Pull auxdisplay update from Andy Shevchenko: - Move Holtek 16k33 driver to use agnostic i2c_get_match_data() - Miscellaneuous cleanups * tag 'auxdisplay-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay: auxdisplay: Remove unused functions auxdisplay: ht16k33: Make use of i2c_get_match_data() auxdisplay: Drop explicit initialization of struct i2c_device_id::driver_data to 0
| * auxdisplay: Remove unused functionsDr. David Alan Gilbert2024-10-081-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | cfag12864b_getrate() and cfag12864b_isenabled() were both added in commit 70e840499aae ("[PATCH] drivers: add LCD support") but never used. Remove them. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| * auxdisplay: ht16k33: Make use of i2c_get_match_data()Andy Shevchenko2024-10-031-5/+5
| | | | | | | | | | | | | | | | Get matching data in one step by switching to use i2c_get_match_data(). As a positive side effect the I²C ID table is in sync of OF one. Reviewed-by: Robin van der Gracht <robin@protonic.nl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| * auxdisplay: Drop explicit initialization of struct ↵Uwe Kleine-König2024-09-302-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | i2c_device_id::driver_data to 0 These drivers don't use the driver_data member of struct i2c_device_id, so don't explicitly initialize this member. This prepares putting driver_data in an anonymous union which requires either no initialization or named designators. But it's also a nice cleanup on its own. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* | move asm/unaligned.h to linux/unaligned.hAl Viro2024-10-021-1/+1
|/ | | | | | | | | | | | | | | | | | | asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
* [tree-wide] finally take no_llseek outAl Viro2024-09-271-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | no_llseek had been defined to NULL two years ago, in commit 868941b14441 ("fs: remove no_llseek") To quote that commit, At -rc1 we'll need do a mechanical removal of no_llseek - git grep -l -w no_llseek | grep -v porting.rst | while read i; do sed -i '/\<no_llseek\>/d' $i done would do it. Unfortunately, that hadn't been done. Linus, could you do that now, so that we could finally put that thing to rest? All instances are of the form .llseek = no_llseek, so it's obviously safe. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'auxdisplay-for-v6.11-tag1' of ↵Linus Torvalds2024-07-267-4/+17
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull auxdisplay updates from Geert Uytterhoeven: - add support for configuring the boot message on line displays - miscellaneous fixes and improvements * tag 'auxdisplay-for-v6.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: auxdisplay: ht16k33: Drop reference after LED registration auxdisplay: Use sizeof(*pointer) instead of sizeof(type) auxdisplay: hd44780: add missing MODULE_DESCRIPTION() macro auxdisplay: linedisp: add missing MODULE_DESCRIPTION() macro auxdisplay: linedisp: Support configuring the boot message auxdisplay: charlcd: Provide a forward declaration
| * auxdisplay: ht16k33: Drop reference after LED registrationMarkus Elfring2024-06-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | The reference count is bumped by device_get_named_child_node() and never dropped. Since LED APIs do not require it to be bumped by the user, drop the reference after LED registration. [andy: rewritten the commit message and amended the change] Fixes: c223d9c636ed ("auxdisplay: ht16k33: Add LED support") Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| * auxdisplay: Use sizeof(*pointer) instead of sizeof(type)Erick Archer2024-06-042-2/+2
| | | | | | | | | | | | | | | | | | | | | | It is preferred to use sizeof(*pointer) instead of sizeof(type) due to the type of the variable can change and one needs not change the former (unlike the latter). This patch has no effect on runtime behavior. Signed-off-by: Erick Archer <erick.archer@outlook.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| * auxdisplay: hd44780: add missing MODULE_DESCRIPTION() macroJeff Johnson2024-06-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/auxdisplay/hd44780_common.o Add the missing invocation of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| * auxdisplay: linedisp: add missing MODULE_DESCRIPTION() macroJeff Johnson2024-06-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/auxdisplay/line-display.o Add the missing invocation of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| * auxdisplay: linedisp: Support configuring the boot messageChris Packham2024-06-042-2/+10
| | | | | | | | | | | | | | | | | | Like we do for charlcd, allow the configuration of the initial message on line-display devices. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| * auxdisplay: charlcd: Provide a forward declarationAndy Shevchenko2024-05-281-0/+2
| | | | | | | | | | | | | | | | While there is no compilation error, strictly speaking the compiler should know about used types beforehand. Provide a forward declaration for struct charlcd_ops before using it in struct charlcd. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* | parport: Remove parport_driver.devmodelDr. David Alan Gilbert2024-07-032-2/+0
|/ | | | | | | | | | | | | | 'devmodel' hasn't actually been used since: 'commit 3275158fa52a ("parport: remove use of devmodel")' and everyone now has it set to true and has been fixed up; remove the flag. (There are still comments all over about it) Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20240502154823.67235-4-linux@treblig.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'backlight-next-6.10' of ↵Linus Torvalds2024-05-221-14/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight updates from Lee Jones: "Fix-ups: - FB Backlight interaction overhaul - Remove superfluous code and simplify overall - Constify various structs and struct attributes Bug Fixes: - Repair LED flickering - Fix signedness bugs" * tag 'backlight-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (42 commits) backlight: sky81452-backlight: Remove unnecessary call to of_node_get() backlight: mp3309c: Fix LEDs flickering in PWM mode backlight: otm3225a: Drop driver owner assignment backlight: lp8788: Drop support for platform data backlight: lcd: Make lcd_class constant backlight: Make backlight_class constant backlight: mp3309c: Fix signedness bug in mp3309c_parse_fwnode() const_structs.checkpatch: add lcd_ops fbdev: omap: lcd_ams_delta: Constify lcd_ops fbdev: imx: Constify lcd_ops fbdev: clps711x: Constify lcd_ops HID: picoLCD: Constify lcd_ops backlight: tdo24m: Constify lcd_ops backlight: platform_lcd: Constify lcd_ops backlight: otm3225a: Constify lcd_ops backlight: ltv350qv: Constify lcd_ops backlight: lms501kf03: Constify lcd_ops backlight: lms283gf05: Constify lcd_ops backlight: l4f00242t03: Constify lcd_ops backlight: jornada720_lcd: Constify lcd_ops ...
| *-. Merge branches 'ib-backlight-auxdisplay-staging-omap-6.9', ↵Lee Jones2024-05-101-8/+0
| |\ \ | | | | | | | | | | | | 'ib-backlight-auxdisplay-hid-fb-6.9' and 'ib-backlight-hid-fbdev-lcd-scripts-6.10' into ibs-for-backlight-merged
| | * | auxdisplay: ht16k33: Remove struct backlight_ops.check_fbThomas Zimmermann2024-03-281-8/+0
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver sets struct fb_info.bl_dev to the correct backlight device. Thus rely on the backlight core code to match backlight and framebuffer devices, and remove the extra check_fb() function from struct backlight_ops. v3: * use 'check_fb()' in commit message (Andy) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Robin van der Gracht <robin@protonic.nl> Acked-by: Robin van der Gracht <robin@protonic.nl> Acked-by: Andy Shevchenko <andy@kernel.org> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20240305162425.23845-3-tzimmermann@suse.de Signed-off-by: Lee Jones <lee@kernel.org>
| * / auxdisplay: ht16k33: Replace use of fb_blank with backlight helperThomas Zimmermann2024-03-281-6/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the use of struct backlight_properties.fb_blank with a call to backlight_get_brightness(). The helper implements similar logic as the driver's function. It also accounts for BL_CORE_SUSPENDED for drivers that set BL_CORE_SUSPENDRESUME. Ht16k33 doesn't use this, so there's no change in behaviour here. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Robin van der Gracht <robin@protonic.nl> Cc: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Robin van der Gracht <robin@protonic.nl> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20240319093915.31778-2-tzimmermann@suse.de Signed-off-by: Lee Jones <lee@kernel.org>
* | auxdisplay: charlcd: Don't rebuild when CONFIG_PANEL_BOOT_MESSAGE=yAndy Shevchenko2024-04-111-0/+2
| | | | | | | | | | | | | | | | | | | | When CONFIG_PANEL_BOOT_MESSAGE=y the module still includes the generated header and gets rebuilt even if it doesn't use anything from that header. Include generated header conditionally to avoid unnecessary rebuilds. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* | auxdisplay: charlcd: Add missing MODULE_DESCRIPTION()Andy Shevchenko2024-04-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The modpost script is not happy WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/auxdisplay/charlcd.o because there is a missing module description. Add it to the module. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* | auxdisplay: seg-led-gpio: Convert to platform remove callback returning voidUwe Kleine-König2024-04-091-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* | auxdisplay: linedisp: Group display drivers togetherAndy Shevchenko2024-04-022-172/+184
|/ | | | | | | | | | | | | | | | For better usability group the display drivers together in Kconfig. With this we will have the following sections: - Character LCD - Samsung KS0108 LCD controller - Single character line display - Character LCD with non-conforming interface Keep Makefile entries sorted alphabetically. While at it, drop redundant 'default n' entries. Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: img-ascii-lcd: Convert to platform remove callback returning voidUwe Kleine-König2024-03-121-5/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: hd44780: Convert to platform remove callback returning voidUwe Kleine-König2024-03-121-3/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: cfag12864bfb: Convert to platform remove callback returning voidUwe Kleine-König2024-03-121-4/+2
| | | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: seg-led-gpio: Import linedisp namespaceChris Packham2024-03-111-0/+1
| | | | | | | | | | | The seg-led-gpio driver uses symbols from the linedisp namespace. Ensure these are imported. Fixes: 899383f9ecf5 ("auxdisplay: Add 7-segment LED display driver") Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Closes: https://lore.kernel.org/r/202403100401.IDre04gu-lkp@intel.com/ Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: Add 7-segment LED display driverChris Packham2024-03-083-0/+124
| | | | | | | | | | Add a driver for a 7-segment LED display. At the moment only one character is supported but it should be possible to expand this to support more characters and/or 14-segment displays in the future. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: Add driver for MAX695x 7-segment LED controllersAndy Shevchenko2024-02-263-0/+209
| | | | | | | | Add initial driver for the MAX6958 and MAX6959 7-segment LED controllers. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: ht16k33: Drop struct ht16k33_segAndy Shevchenko2024-02-261-15/+9
| | | | | | | | | The struct ht16k33_seg is repeating struct linedisp. Use the latter directly. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: ht16k33: Switch to use line display character mappingAndy Shevchenko2024-02-261-73/+30
| | | | | | | | | | Since line display library supports necessary bits to map the characters (if required), switch this driver to use that. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Robin van der Gracht <robin@protonic.nl> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* auxdisplay: ht16k33: Define a few helper macrosAndy Shevchenko2024-02-261-12/+16
| | | | | | | | | Define a few helper macros — wrappers on container_of() — for easier maintenance in the future. While at it, include missing container_of.h. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-24 08:41:25 +0000