Pull timer updates from Thomas Gleixner: "Updates for the time(r) subsystem: Core: - Make the clocksource watchdog more robust by better validation checks of the measurement. Drivers: - New drivers for MStar and SSD20xd SOCs - The usual cleanups and improvements all over the place" * tag 'timers-core-2022-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: dt-bindings: timer: Add Mstar MSC313e timer devicetree bindings documentation clocksource/drivers/msc313e: Add support for ssd20xd-based platforms clocksource/drivers: Add MStar MSC313e timer support clocksource/drivers/pistachio: Fix -Wunused-but-set-variable warning clocksource/drivers/timer-imx-sysctr: Set cpumask to cpu_possible_mask clocksource/drivers/imx-sysctr: Mark two variable with __ro_after_init clocksource/drivers/renesas,ostm: Make RENESAS_OSTM symbol visible clocksource/drivers/renesas-ostm: Add RZ/G2L OSTM support dt-bindings: timer: renesas: ostm: Document Renesas RZ/G2L OSTM clocksource/drivers/exynos_mct: Fix silly typo resulting in checkpatch warning clocksource: Reduce the default clocksource_watchdog() retries to 2 clocksource: Avoid accidental unstable marking of clocksources dt-bindings: timer: tpm-timer: Add imx8ulp compatible string reset: Add of_reset_control_get_optional_exclusive() clocksource/drivers/exynos_mct: Refactor resources allocation dt-bindings: timer: remove rockchip,rk3066-timer compatible string from rockchip,rk-timer.yaml dt-bindings: timer: cadence_ttc: Add power-domains
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| @@ -454,6 +454,26 @@ static inline struct reset_control *of_reset_control_get_exclusive( · 453 unmodified lines | ||
| 454 | 454 | return __of_reset_control_get(node, id, 0, false, false, true); |
| 455 | 455 | } |
| 456 | 456 | |
| 457 | +/** | |
| 458 | + * of_reset_control_get_optional_exclusive - Lookup and obtain an optional exclusive | |
| 459 | + * reference to a reset controller. | |
| 460 | + * @node: device to be reset by the controller | |
| 461 | + * @id: reset line name | |
| 462 | + * | |
| 463 | + * Optional variant of of_reset_control_get_exclusive(). If the requested reset | |
| 464 | + * is not specified in the device tree, this function returns NULL instead of | |
| 465 | + * an error. | |
| 466 | + * | |
| 467 | + * Returns a struct reset_control or IS_ERR() condition containing errno. | |
| 468 | + * | |
| 469 | + * Use of id names is optional. | |
| 470 | + */ | |
| 471 | +static inline struct reset_control *of_reset_control_get_optional_exclusive( | |
| 472 | + struct device_node *node, const char *id) | |
| 473 | +{ | |
| 474 | + return __of_reset_control_get(node, id, 0, false, true, true); | |
| 475 | +} | |
| 476 | + | |
| 457 | 477 | /** |
| 458 | 478 | * of_reset_control_get_shared - Lookup and obtain a shared reference |
| 459 | 479 | * to a reset controller. |