Hi Bartek,
On 05.03.2014 17:15, Bartlomiej Zolnierkiewicz wrote:
Hi Tomek,
On Monday, March 03, 2014 05:02:08 PM Tomasz Figa wrote:
This patch moves Exynos power domain code to use the new generic power
domain look-up framework introduced by previous patch, allowing the new
code to be compiled with CONFIG_ARCH_EXYNOS selected as well.
Signed-off-by: Tomasz Figa <tomasz.figa@xxxxxxxxx>
---
.../bindings/arm/exynos/power_domain.txt | 12 ++--
arch/arm/mach-exynos/pm_domains.c | 80 +---------------------
kernel/power/Kconfig | 2 +-
3 files changed, 7 insertions(+), 87 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
index 5216b41..60f26a8 100644
--- a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
+++ b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
@@ -8,6 +8,8 @@ Required Properties:
* samsung,exynos4210-pd - for exynos4210 type power domain.
- reg: physical base address of the controller and length of memory mapped
region.
+- #power-domain-cells: number of cells in power domain specifier;
+ must be 0.
Node of a device using power domains must have a samsung,power-domain property
defined with a phandle to respective power domain.
@@ -17,12 +19,8 @@ Example:
lcd0: power-domain-lcd0 {
compatible = "samsung,exynos4210-pd";
reg = <0x10023C00 0x10>;
+ #power-domain-cells = <0>;
};
-Example of the node using power domain:
-
- node {
- /* ... */
- samsung,power-domain = <&lcd0>;
- /* ... */
- };
+See Documentation/devicetree/bindings/power/power_domain.txt for description
+of consumer-side bindings.
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index 8fd2488..48ee6c9 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -75,78 +75,6 @@ static int exynos_pd_power_off(struct generic_pm_domain *domain)
return exynos_pd_power(domain, false);
}
-static void exynos_add_device_to_domain(struct exynos_pm_domain *pd,
- struct device *dev)
-{
- int ret;
-
- dev_dbg(dev, "adding to power domain %s\n", pd->pd.name);
-
- while (1) {
- ret = pm_genpd_add_device(&pd->pd, dev);
- if (ret != -EAGAIN)
- break;
- cond_resched();
- }
-
- pm_genpd_dev_need_restore(dev, true);
-}
-
-static void exynos_remove_device_from_domain(struct device *dev)
-{
- struct generic_pm_domain *genpd = dev_to_genpd(dev);
- int ret;
-
- dev_dbg(dev, "removing from power domain %s\n", genpd->name);
-
- while (1) {
- ret = pm_genpd_remove_device(genpd, dev);
- if (ret != -EAGAIN)
- break;
- cond_resched();
- }
-}
-
-static void exynos_read_domain_from_dt(struct device *dev)
-{
- struct platform_device *pd_pdev;
- struct exynos_pm_domain *pd;
- struct device_node *node;
-
- node = of_parse_phandle(dev->of_node, "samsung,power-domain", 0);
This removes "samsung,power-domain" phandle handling but I cannot find
in your patch series updates to existing EXYNOS dts files converting
them to use the new "power-domain" property. Am I missing something?
Patch 01/11 adds generic parsing code along with fallback to the legacy
"samsung,power-domain" property, if the generic one is not present, as
it was pretty straightforward to implement it there.
Best regards,
Tomasz
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