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authorMarek Szyprowski <m.szyprowski@samsung.com>2018-03-06 17:33:11 +0300
committerKrzysztof Kozlowski <krzk@kernel.org>2018-04-17 18:25:42 +0300
commitb2b568c591ddbb20d597e256212579d70dbf3000 (patch)
treed19f40b6ad73e88fcb7ee7b1071fa9261152898d /Documentation/devicetree/bindings/power
parent60cc43fc888428bb2f18f08997432d426a243338 (diff)
downloadlinux-b2b568c591ddbb20d597e256212579d70dbf3000.tar.xz
soc: samsung: pm_domains: Deprecate support for clocks
Handling of special clock operations on power domain on/off sequences has been moved to respective Exynos clock controller drivers, so there is no need to keep the duplicated (and conflicting) code in Exynos power domain driver. Mark clock related properties in Exynos power domain bindings as deprecated. This change has no inpact on backwards-compatibility, as the new drivers properly work with old DTBs (deprecated properties are ignored). Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/power')
-rw-r--r--Documentation/devicetree/bindings/power/pd-samsung.txt20
1 files changed, 4 insertions, 16 deletions
diff --git a/Documentation/devicetree/bindings/power/pd-samsung.txt b/Documentation/devicetree/bindings/power/pd-samsung.txt
index 549f7dee9b9d..92ef355e8f64 100644
--- a/Documentation/devicetree/bindings/power/pd-samsung.txt
+++ b/Documentation/devicetree/bindings/power/pd-samsung.txt
@@ -15,23 +15,13 @@ Required Properties:
Optional Properties:
- label: Human readable string with domain name. Will be visible in userspace
to let user to distinguish between multiple domains in SoC.
-- clocks: List of clock handles. The parent clocks of the input clocks to the
- devices in this power domain are set to oscclk before power gating
- and restored back after powering on a domain. This is required for
- all domains which are powered on and off and not required for unused
- domains.
-- clock-names: The following clocks can be specified:
- - oscclk: Oscillator clock.
- - clkN: Input clocks to the devices in this power domain. These clocks
- will be reparented to oscclk before switching power domain off.
- Their original parent will be brought back after turning on
- the domain. Maximum of 4 clocks (N = 0 to 3) are supported.
- - asbN: Clocks required by asynchronous bridges (ASB) present in
- the power domain. These clock should be enabled during power
- domain on/off operations.
- power-domains: phandle pointing to the parent power domain, for more details
see Documentation/devicetree/bindings/power/power_domain.txt
+Deprecated Properties:
+- clocks
+- clock-names
+
Node of a device using power domains must have a power-domains property
defined with a phandle to respective power domain.
@@ -47,8 +37,6 @@ Example:
mfc_pd: power-domain@10044060 {
compatible = "samsung,exynos4210-pd";
reg = <0x10044060 0x20>;
- clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MOUT_USER_ACLK333>;
- clock-names = "oscclk", "clk0";
#power-domain-cells = <0>;
label = "MFC";
};