Le 03/02/2024 à 17:52, Adam Ford a écrit :
From: Lucas Stach <l.stach-bicnvbalz9megne8c9+...@public.gmane.org>
This adds the driver for the Samsung HDMI PHY found on the
i.MX8MP SoC.
Signed-off-by: Lucas Stach <l.stach-bicnvbalz9megne8c9+...@public.gmane.org>
Signed-off-by: Adam Ford <aford173-re5jqeeqqe8avxtiumw...@public.gmane.org>
Tested-by: Alexander Stein
<alexander.stein-w3o+9buwjqazox4op4i...@public.gmane.org>
---
...
+static int fsl_samsung_hdmi_phy_probe(struct platform_device *pdev)
+{
+ struct fsl_samsung_hdmi_phy *phy;
+ int ret;
+
+ phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
+ if (!phy)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, phy);
+ phy->dev = &pdev->dev;
+
+ phy->regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(phy->regs))
+ return PTR_ERR(phy->regs);
+
+ phy->apbclk = devm_clk_get(phy->dev, "apb");
+ if (IS_ERR(phy->apbclk))
+ return dev_err_probe(phy->dev, PTR_ERR(phy->apbclk),
+ "failed to get apb clk\n");
+
+ phy->refclk = devm_clk_get(phy->dev, "ref");
+ if (IS_ERR(phy->refclk))
+ return dev_err_probe(phy->dev, PTR_ERR(phy->refclk),
+ "failed to get ref clk\n");
+
+ ret = clk_prepare_enable(phy->apbclk);
+ if (ret) {
+ dev_err(phy->dev, "failed to enable apbclk\n");
+ return ret;
+ }
+
+ pm_runtime_get_noresume(phy->dev);
+ pm_runtime_set_active(phy->dev);
+ pm_runtime_enable(phy->dev);
+
+ ret = phy_clk_register(phy);
+ if (ret) {
+ dev_err(&pdev->dev, "register clk failed\n");
+ goto register_clk_failed;
+ }
+
+ pm_runtime_put(phy->dev);
+
+ return 0;
+
+register_clk_failed:
+ clk_disable_unprepare(phy->apbclk);
+
+ return ret;
+}
+
+static int fsl_samsung_hdmi_phy_remove(struct platform_device *pdev)
+{
+ of_clk_del_provider(pdev->dev.of_node);
A clk_disable_unprepare(phy->apbclk) call seems to be missing here.
Or maybe devm_clk_get_enabled() should be used for 'apbclk'?
CJ
+
+ return 0;
+}
...
