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authorGeert Uytterhoeven <geert+renesas@glider.be>2017-11-30 12:54:28 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-12-13 01:34:47 +0100
commit001d50c9a14f1fab94b329161a1db9235b4e60da (patch)
treecbbbbcc6fa3e7fbd53b7369f9abcf5888276d875 /drivers/base/power
parent50c4c4e268a2d7a3e58ebb698ac74da0de40ae36 (diff)
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.c16
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);