From 404d59c57b26681a370eee059f9b8ad0f34327be Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 12 Nov 2020 15:09:30 +0100 Subject: PM / devfreq: exynos-bus: Add registration of interconnect child device This patch adds registration of a child platform device for the exynos interconnect driver. It is assumed that the interconnect provider will only be needed when #interconnect-cells property is present in the bus DT node, hence the child device will be created only when such a property is present. Acked-by: Krzysztof Kozlowski Acked-by: Chanwoo Choi Signed-off-by: Sylwester Nawrocki Signed-off-by: Chanwoo Choi --- drivers/devfreq/exynos-bus.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/devfreq') diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index 1e684a448c9e..20447a401af4 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -24,6 +24,7 @@ struct exynos_bus { struct device *dev; + struct platform_device *icc_pdev; struct devfreq *devfreq; struct devfreq_event_dev **edev; @@ -156,6 +157,8 @@ static void exynos_bus_exit(struct device *dev) if (ret < 0) dev_warn(dev, "failed to disable the devfreq-event devices\n"); + platform_device_unregister(bus->icc_pdev); + dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); if (bus->opp_table) { @@ -168,6 +171,8 @@ static void exynos_bus_passive_exit(struct device *dev) { struct exynos_bus *bus = dev_get_drvdata(dev); + platform_device_unregister(bus->icc_pdev); + dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); } @@ -432,6 +437,18 @@ static int exynos_bus_probe(struct platform_device *pdev) if (ret < 0) goto err; + /* Create child platform device for the interconnect provider */ + if (of_get_property(dev->of_node, "#interconnect-cells", NULL)) { + bus->icc_pdev = platform_device_register_data( + dev, "exynos-generic-icc", + PLATFORM_DEVID_AUTO, NULL, 0); + + if (IS_ERR(bus->icc_pdev)) { + ret = PTR_ERR(bus->icc_pdev); + goto err; + } + } + max_state = bus->devfreq->profile->max_state; min_freq = (bus->devfreq->profile->freq_table[0] / 1000); max_freq = (bus->devfreq->profile->freq_table[max_state - 1] / 1000); -- cgit v1.2.3-59-g8ed1b