linux/drivers/tty/serial/sh-sci.c, branch v6.17

serial: sh-sci: Convert to DEFINE_SIMPLE_DEV_PM_OPS()

2025-07-16T09:05:33Z

Convert the Renesas SuperH SCI(F) serial port driver from SIMPLE_DEV_PM_OPS() to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr(). This lets us drop the __maybe_unused annotations from its suspend and resume callbacks, and reduces kernel size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled. Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/a5628fe028362ae3f8729021a7864dd39f7869bf.1752086885.git.geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Add support for RZ/T2H SCI

2025-07-09T11:45:30Z

Define a new RSCI port type, and the RSCI 32 bits registers set. The RZ/T2H SCI has a a fifo, and a quite different set of registers from the original SH SCI ones. DMA is not supported yet. Signed-off-by: Thierry Bultel Signed-off-by: Lad Prabhakar Reviewed-by: Wolfram Sang Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20250630202323.279809-6-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Use private port ID

2025-07-09T11:45:30Z

New port types cannot be added in serial_core.h, which is shared with userspace. In order to support new port types, the coming new ones will have BIT(7) set in the id value, and in this case, uartport->type is set to PORT_GENERIC. This commit therefore changes all the places where the port type is read, by not relying on uartport->type but on the private value stored in struct sci_port. Signed-off-by: Thierry Bultel Signed-off-by: Lad Prabhakar Reviewed-by: Wolfram Sang Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20250630202323.279809-5-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Replace direct stop_rx/stop_tx calls with port ops in sci_shutdown()

2025-07-09T11:45:30Z

Replace direct calls to sci_stop_rx() and sci_stop_tx() with port ops callbacks in sci_shutdown(). This enables the RSCI driver, which reuses the SCI core but implements its own stop_rx and stop_tx logic, to reuse sci_shutdown() without duplicating code. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20250630202323.279809-4-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Add R-Car Gen5 support

2025-07-09T11:45:01Z

Add "rcar-gen5-scif" compatible string for R-Car Gen5 support. Signed-off-by: Nghia Nguyen Signed-off-by: Kuninori Morimoto Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/87cyahdgfu.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Greg Kroah-Hartman

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

2025-06-08T07:07:37Z

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

serial: sh-sci: Introduced sci_of_data

2025-04-11T14:56:32Z

The aim here is to provide an easier support to more different SCI controllers, like the RZ/T2H one. The existing .data field of_sci_match is changed to a structure containing all what that can be statically initialized, and avoid a call to 'sci_probe_regmap', in both 'sci_init_single', and 'early_console_setup'. 'sci_probe_regmap' is now assumed to be called in the only case where the device description is from a board file instead of a dts. In this way, there is no need to patch 'sci_probe_regmap' for adding new SCI type, and also, the specific sci_port_params for a new SCI type can be provided by an external file. Reviewed-by: Wolfram Sang Reviewed-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Signed-off-by: Thierry Bultel Link: https://lore.kernel.org/r/20250403212919.1137670-10-thierry.bultel.yh@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Introduced function pointers

2025-04-11T14:56:30Z

The aim here is to prepare support for new sci controllers like the T2H/RSCI whose registers are too much different for being handled in common code. This named serial controller also has 32 bits register, so some return types had to be changed. The needed generic functions are no longer static, with prototypes defined in sh-sci-common.h so that they can be used from specific implementation in a separate file, to keep this driver as little changed as possible. For doing so, a set of 'ops' is added to struct sci_port. Tested-by: Geert Uytterhoeven Reviewed-by: Geert Uytterhoeven Reviewed-by: Wolfram Sang Signed-off-by: Thierry Bultel Link: https://lore.kernel.org/r/20250403212919.1137670-9-thierry.bultel.yh@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Fix a comment about SCIFA

2025-04-11T14:56:22Z

The comment was correct when it was added, at that time RZ/T1 was the only SoC in the RZ/T line. Since then, further SoCs have been added with RZ/T names which do not use the same SCIFA register layout and so the comment is now misleading. So we update the comment to explicitly reference only RZ/T1 SoCs. Reviewed-by: Paul Barker Reviewed-by: Wolfram Sang Reviewed-by: Geert Uytterhoeven Signed-off-by: Thierry Bultel Link: https://lore.kernel.org/r/20250403212919.1137670-8-thierry.bultel.yh@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

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

2025-04-05T08:30:12Z

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