From 45a81df06eeb320093b06132870e7ecd646db3f0 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Tue, 8 May 2018 19:55:30 +0300 Subject: [PATCH] memory: tegra: Register SMMU after MC driver became ready Memory Controller driver invokes SMMU driver registration and MC's registers mapping is shared with SMMU. This mapping goes away if MC driver probing fails after SMMU registration. Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding --- drivers/memory/tegra/mc.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index c81d01caf1a8..bb93cc53554e 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -672,15 +672,6 @@ static int tegra_mc_probe(struct platform_device *pdev) return err; } - if (IS_ENABLED(CONFIG_TEGRA_IOMMU_SMMU)) { - mc->smmu = tegra_smmu_probe(&pdev->dev, mc->soc->smmu, mc); - if (IS_ERR(mc->smmu)) { - dev_err(&pdev->dev, "failed to probe SMMU: %ld\n", - PTR_ERR(mc->smmu)); - return PTR_ERR(mc->smmu); - } - } - err = tegra_mc_reset_setup(mc); if (err < 0) { dev_err(&pdev->dev, "failed to register reset controller: %d\n", @@ -706,6 +697,15 @@ static int tegra_mc_probe(struct platform_device *pdev) return err; } + if (IS_ENABLED(CONFIG_TEGRA_IOMMU_SMMU)) { + mc->smmu = tegra_smmu_probe(&pdev->dev, mc->soc->smmu, mc); + if (IS_ERR(mc->smmu)) { + dev_err(&pdev->dev, "failed to probe SMMU: %ld\n", + PTR_ERR(mc->smmu)); + return PTR_ERR(mc->smmu); + } + } + return 0; }