From: Marek Szyprowski m.szyprowski@samsung.com
commit 0458b88267c637fb872b0359da9ff0b243081e9e upstream.
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: 5ea428595cc5 ("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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/soc/samsung/exynos-asv.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/soc/samsung/exynos-asv.c +++ b/drivers/soc/samsung/exynos-asv.c @@ -119,11 +119,6 @@ static int exynos_asv_probe(struct platf 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 platf 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)