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| author |   Geert Uytterhoeven <geert+renesas@glider.be> | 2017-11-30 12:54:28 +0100 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-12-13 01:34:47 +0100 |
| commit | 001d50c9a14f1fab94b329161a1db9235b4e60da (patch) | |
| tree | cbbbbcc6fa3e7fbd53b7369f9abcf5888276d875 /drivers/base/power | |
| parent | Linux 4.15-rc3 (diff) | |
| download | linux-dev-001d50c9a14f1fab94b329161a1db9235b4e60da.tar.xz linux-dev-001d50c9a14f1fab94b329161a1db9235b4e60da.zip | |
PM / Domains: Remove obsolete "samsung,power-domain" check
Currently the generic PM Domain code code checks for the presence of
both (generic) "power-domains" and (Samsung Exynos legacy)
"samsung,power-domain" properties in all device tree nodes representing
devices.
There are two issues with this:
1. This imposes a small boot-time penalty on all platforms using DT,
2. Platform-specific checks do not really belong in core framework
code.
Remove the platform-specific check, as the last user of
"samsung,power-domain" was removed in commit 46dcf0ff0de35da8 ("ARM:
dts: exynos: Remove exynos4415.dtsi"). All other users were converted
before in commit 0da6587041363033 ("ARM: dts: convert to generic power
domain bindings for exynos DT").
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base/power')
| -rw-r--r-- | drivers/base/power/domain.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 0c80bea05bcb..f9dcc981b6b9 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2199,20 +2199,8 @@ int genpd_dev_pm_attach(struct device *dev) ret = of_parse_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells", 0, &pd_args); - if (ret < 0) { - if (ret != -ENOENT) - return ret; - - /* - * Try legacy Samsung-specific bindings - * (for backwards compatibility of DT ABI) - */ - pd_args.args_count = 0; - pd_args.np = of_parse_phandle(dev->of_node, - "samsung,power-domain", 0); - if (!pd_args.np) - return -ENOENT; - } + if (ret < 0) + return ret; mutex_lock(&gpd_list_lock); pd = genpd_get_from_provider(&pd_args); |