user/sven/linux.git/drivers/devfreq/exynos-bus.c, branch v5.8

PM / devfreq: exynos-bus: Add error log when fail to get devfreq-event

2019-12-30T00:59:06Z

Adding an error log makes it easier to trace the function's error path. Because the error code may be rewritten on return, print error code here. Signed-off-by: Yangtao Li Signed-off-by: Chanwoo Choi

PM / devfreq: exynos-bus: Disable devfreq-event device when fails

2019-12-30T00:59:06Z

The exynos_bus_profile_init process may fail, but the devfreq event device remains enabled. Call devfreq_event_disable_edev on the error return path. Signed-off-by: Yangtao Li Signed-off-by: Chanwoo Choi

PM / devfreq: exynos-bus: Reduce goto statements and remove unused headers

2019-12-30T00:59:06Z

Improve code readability by changing the goto statements as well as eliminating a few more goto statements (related to return paths). Moreover, remove unused header file and adds a missing . Signed-off-by: Artur Świgoń [cw00.choi: Edit patch title and description] Signed-off-by: Chanwoo Choi

PM / devfreq: exynos-bus: Extract exynos_bus_profile_init_passive()

2019-12-30T00:59:05Z

This patch adds a new exynos_bus_profile_init_passive() extracted from exynos_bus_probe() for devfreq device using passive governor. Signed-off-by: Artur Świgoń [cw00.choi: Edit description to indicate that function is for devfreq device using passive governor] Signed-off-by: Chanwoo Choi

PM / devfreq: exynos-bus: Extract exynos_bus_profile_init()

2019-12-30T00:59:05Z

This patch adds a new exynos_bus_profile_init() extracted from exynos_bus_probe() for devfreq device using simple_ondemand governor like parent devfreq device. Signed-off-by: Artur Świgoń [cw00.choi: Edit description to indicate that new function is for parent devfreq device] Signed-off-by: Chanwoo Choi

PM / devfreq: exynos-bus: Convert to use dev_pm_opp_set_rate()

2019-08-25T03:46:48Z

Reuse opp core code for setting bus clock and voltage. As a side effect this allow usage of coupled regulators feature (required for boards using Exynos5422/5800 SoCs) because dev_pm_opp_set_rate() uses regulator_set_voltage_triplet() for setting regulator voltage while the old code used regulator_set_voltage_tol() with fixed tolerance. This patch also removes no longer needed parsing of DT property "exynos,voltage-tolerance" (no Exynos devfreq DT node uses it). After applying changes both functions exynos_bus_passive_target() and exynos_bus_target() have the same code, so remove exynos_bus_passive_target(). In exynos_bus_probe() replace it with exynos_bus_target. Signed-off-by: Kamil Konieczny Acked-by: Chanwoo Choi Signed-off-by: MyungJoo Ham

PM / devfreq: exynos-bus: Correct clock enable sequence

2019-08-25T03:46:07Z

Regulators should be enabled before clocks to avoid h/w hang. This require change in exynos_bus_probe() to move exynos_bus_parse_of() after exynos_bus_parent_parse_of() and change in error handling. Similar change is needed in exynos_bus_exit() where clock should be disabled before regulators. Signed-off-by: Kamil Konieczny Acked-by: Chanwoo Choi Signed-off-by: MyungJoo Ham

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55Z

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

PM / devfreq: exynos-bus: Suspend all devices on system shutdown

2019-04-16T00:29:18Z

Force all Exynos buses to safe operation points before doing the system reboot operation. There are board on which some aggressive power saving operation points are behind the capabilities of the bootloader to properly reset the hardware and boot the board. This way one can avoid board crash early after reboot. This fixes reboot issue on OdroidU3 board both with eMMC and SD boot. Reported-by: Markus Reichl Signed-off-by: Marek Szyprowski Acked-by: Chanwoo Choi Signed-off-by: MyungJoo Ham

PM / devfreq: Define the constant governor name

2017-10-26T08:08:40Z

Prior to that, the devfreq device uses the governor name when adding the itself. In order to prevent the mistake used the wrong governor name, this patch defines the governor name as a constant and then uses them instead of using the string directly. Signed-off-by: Chanwoo Choi Signed-off-by: MyungJoo Ham Cc: Kukjin Kim Cc: Krzysztof Kozlowski Cc: linux-samsung-soc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org