From: Thierry Reding <tred...@nvidia.com> Registering as memory controller allows other drivers to obtain a reference to it. This is mostly useful as a way of ordering probe between devices depending on one another.
Signed-off-by: Thierry Reding <tred...@nvidia.com> --- drivers/memory/tegra/tegra186.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c index 5d53f11ca7b6..8c43702340e8 100644 --- a/drivers/memory/tegra/tegra186.c +++ b/drivers/memory/tegra/tegra186.c @@ -4,6 +4,7 @@ */ #include <linux/io.h> +#include <linux/memory-controller.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/of_device.h> @@ -32,6 +33,7 @@ struct tegra186_mc_soc { }; struct tegra186_mc { + struct memory_controller base; struct device *dev; void __iomem *regs; @@ -1532,13 +1534,18 @@ static int tegra186_mc_probe(struct platform_device *pdev) return -ENOMEM; mc->soc = of_device_get_match_data(&pdev->dev); + mc->dev = &pdev->dev; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); mc->regs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(mc->regs)) return PTR_ERR(mc->regs); - mc->dev = &pdev->dev; + mc->base.dev = &pdev->dev; + + err = memory_controller_register(&mc->base); + if (err < 0) + return err; err = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); if (err < 0) -- 2.24.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu