This patchset support devicetree and use common ppmu driver instead of
individual code of exynos4_bus.c to remove duplicate code. Also this patchset
get the resources for busfreq from dt data by using DT helper function.
- PPMU register address
- PPMU clock
- Regulator for INT/MIF block
This patchset use SET_SYSTEM_SLEEP_PM_OPS macro intead of legacy method.
To remove power-leakage in suspend state, before entering suspend state,
disable ppmu clocks.
Changes from v2:
- Add detailed description to Documentation/devicetree/bindings/exynos4_bus.txt
and change patch description of patch#8
- Change the sequence of patchset in patch #1 ~ #4
- Fix minor issue
Changes from v1:
- Add exynos4_bus.txt documentation for devicetree guide
- Fix probe failure if CONFIG_PM_OPP is disabled
- Fix typo and resource leak(regulator/clock/memory) when happening probe failure
- Add additionally comment for PPMU usage instead of previous PPC
- Split separate patch to remove ambiguous of patch
Chanwoo Choi (8):
devfreq: exynos4: Fix bug of resource leak and code clean on probe()
devfreq: exynos4: Support devicetree to get device id of Exynos4 SoC
devfreq: exynos4: Use common ppmu driver and get ppmu address from dt data
devfreq: exynos4: Add ppmu's clock control and code clean about regulator control
devfreq: exynos4: Use SET_SYSTEM_SLEEP_PM_OPS macro
devfreq: exynos4: Fix power-leakage of clock on suspend state
devfreq: exynos4: Add CONFIG_PM_OPP dependency to fix probe fail
Documentation: dt: devfreq: Add device tree binding of Exynos4
busfreq
.../devicetree/bindings/devfreq/exynos4_bus.txt | 50 +++
drivers/devfreq/Kconfig | 1 +
drivers/devfreq/exynos/Makefile | 2 +-
drivers/devfreq/exynos/exynos4_bus.c | 415 ++++++++++++++-------
4 files changed, 342 insertions(+), 126 deletions(-)
create mode 100644 Documentation/devicetree/bindings/devfreq/exynos4_bus.txt
--
1.8.0
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