kernel/linux.git/drivers/auxdisplay, branch v6.18.21

auxdisplay: arm-charlcd: fix release_mem_region() size

2026-02-26T22:58:56+00:00

[ Upstream commit b5c23a4d291d2ac1dfdd574a68a3a68c8da3069e ] It seems like, after the request_mem_region(), the corresponding release_mem_region() must take the same size. This was done in (now removed due to previous refactoring) charlcd_remove() but not in the error path in charlcd_probe(). Fixes: ce8962455e90 ("ARM: 6214/2: driver for the character LCD found in ARM refdesigns") Signed-off-by: Thomas Fourier Reviewed-by: Geert Uytterhoeven Signed-off-by: Andy Shevchenko Signed-off-by: Sasha Levin

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace. [ tglx: Redone against pre rc1 ] Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

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 Signed-off-by: Ingo Molnar

auxdisplay: hd44780: Rename hd to hdc in hd44780_common_alloc()

2025-03-10T16:03:02+00:00

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

auxdisplay: hd44780: Call charlcd_alloc() from hd44780_common_alloc()

2025-03-10T16:03:02+00:00

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 Reviewed-by: Geert Uytterhoeven

auxdisplay: panel: Make use of hd44780_common_free()

2025-03-10T16:03:02+00:00

Use the symmetrical API to free the common resources. Signed-off-by: Andy Shevchenko Reviewed-by: Geert Uytterhoeven

auxdisplay: hd44780: Make use of hd44780_common_free()

2025-03-10T16:03:02+00:00

Use the symmetrical API to free the common resources. Signed-off-by: Andy Shevchenko Reviewed-by: Geert Uytterhoeven

auxdisplay: hd44780: Introduce hd44780_common_free()

2025-03-10T16:03:02+00:00

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 Reviewed-by: Geert Uytterhoeven

auxdisplay: lcd2s: Allocate memory for custom data in charlcd_alloc()

2025-03-10T16:03:02+00:00

Allocate memory for custom data in charlcd_alloc() instead of doing that explicitly in the driver. Signed-off-by: Andy Shevchenko Reviewed-by: Geert Uytterhoeven

auxdisplay: charlcd: Partially revert "Move hwidth and bwidth to struct hd44780_common"

2025-03-10T16:02:31+00:00

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 Reviewed-by: Geert Uytterhoeven