Commit 0458b882 authored Dec 07, 2020 by Marek Szyprowski Committed by Krzysztof Kozlowski Jan 03, 2021

soc: samsung: exynos-asv: don't defer early on not-supported SoCs



Check if the SoC is really supported before gathering the needed
resources. This fixes endless deferred probe on some SoCs other than
Exynos5422 (like Exynos5410).

Fixes: 5ea42859 ("soc: samsung: Add Exynos Adaptive Supply Voltage driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Link: https://lore.kernel.org/r/20201207190517.262051-2-krzk@kernel.org


Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

parent 5c8fe583

drivers/soc/samsung/exynos-asv.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -119,11 +119,6 @@ static int exynos_asv_probe(struct platform_device *pdev)
		u32 product_id = 0;
		int ret, i;

		cpu_dev = get_cpu_device(0);
		ret = dev_pm_opp_get_opp_count(cpu_dev);
		if (ret < 0)
		return -EPROBE_DEFER;

		asv = devm_kzalloc(&pdev->dev, sizeof(*asv), GFP_KERNEL);
		if (!asv)
		return -ENOMEM;
		@@ -144,6 +139,11 @@ static int exynos_asv_probe(struct platform_device *pdev)
		return -ENODEV;
		}

		cpu_dev = get_cpu_device(0);
		ret = dev_pm_opp_get_opp_count(cpu_dev);
		if (ret < 0)
		return -EPROBE_DEFER;

		ret = of_property_read_u32(pdev->dev.of_node, "samsung,asv-bin",
		&asv->of_bin);
		if (ret < 0)