From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: [PATCH v4 4/5] memory: tegra186: Register as memory controller Date: Thu, 13 Feb 2020 17:39:58 +0100 Message-ID: <20200213163959.819733-5-thierry.reding@gmail.com> References: <20200213163959.819733-1-thierry.reding@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20200213163959.819733-1-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Arnd Bergmann , Will Deacon , Robin Murphy , Rob Herring Cc: Joerg Roedel , Olof Johansson , linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-tegra@vger.kernel.org From: Thierry Reding 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 --- 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 +#include #include #include #include @@ -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