soc: samsung: pmu: Populate children syscon nodes

The syscon poweroff and restart nodes logically belong to the Power
Management Unit so populate possible children.

This also requires providing compatibles for Exynos5410 and Exynos7 so
the PMU device and its children will be instantiated for them as well.
Just like Exynos5433, these chipsets are not yet supported by the PMU
driver.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>

diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt b/Documentation/devicetree/bindings/arm/samsung/pmu.txt
index 779f5614bceeb336cdf16352f182ad57d7fbcab7..16685787d2bd0c877ffdcf65ce60888a9366ee07 100644 (file)
--- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt
+++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt
@@ -43,6 +43,12 @@ following properties:
 - interrupt-parent: a phandle indicating which interrupt controller
   this PMU signals interrupts to.
 
+
+Optional nodes:
+
+- nodes defining the restart and poweroff syscon children
+
+
 Example :
 pmu_system_controller: system-controller@10040000 {
        compatible = "samsung,exynos5250-pmu", "syscon";

diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c
index f56adbd9fb8be00fbbe0ae07d6590390ce9bdadc..d34ca201b8b7954fb87db20f818d18be92387248 100644 (file)
--- a/drivers/soc/samsung/exynos-pmu.c
+++ b/drivers/soc/samsung/exynos-pmu.c
@@ -84,11 +84,15 @@ static const struct of_device_id exynos_pmu_of_device_ids[] = {
        }, {
                .compatible = "samsung,exynos5250-pmu",
                .data = exynos_pmu_data_arm_ptr(exynos5250_pmu_data),
+       }, {
+               .compatible = "samsung,exynos5410-pmu",
        }, {
                .compatible = "samsung,exynos5420-pmu",
                .data = exynos_pmu_data_arm_ptr(exynos5420_pmu_data),
        }, {
                .compatible = "samsung,exynos5433-pmu",
+       }, {
+               .compatible = "samsung,exynos7-pmu",
        },
        { /*sentinel*/ },
 };
@@ -126,6 +130,9 @@ static int exynos_pmu_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, pmu_context);
 
+       if (devm_of_platform_populate(dev))
+               dev_err(dev, "Error populating children, reboot and poweroff might not work properly\n");
+
        dev_dbg(dev, "Exynos PMU Driver probe done\n");
        return 0;
 }