static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); struct dw_hdmi_plat_data *plat_data; const struct of_device_id *match; struct drm_device *drm = data; struct drm_encoder *encoder; struct rockchip_hdmi *hdmi; int ret; if (!pdev->dev.of_node) return -ENODEV; hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL); if (!hdmi) return -ENOMEM; match = of_match_node(dw_hdmi_rockchip_dt_ids, pdev->dev.of_node); plat_data = devm_kmemdup(&pdev->dev, match->data, sizeof(*plat_data), GFP_KERNEL); if (!plat_data) return -ENOMEM; hdmi->dev = &pdev->dev; hdmi->chip_data = plat_data->phy_data; plat_data->phy_data = hdmi; encoder = &hdmi->encoder; encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node); /* * If we failed to find the CRTC(s) which this encoder is * supposed to be connected to, it's because the CRTC has * not been registered yet. Defer probing, and hope that * the required CRTC is added later. */ if (encoder->possible_crtcs == 0) return -EPROBE_DEFER; ret = rockchip_hdmi_parse_dt(hdmi); if (ret) { DRM_DEV_ERROR(hdmi->dev, "Unable to parse OF data\n"); return ret; } ret = clk_prepare_enable(hdmi->vpll_clk); if (ret) { DRM_DEV_ERROR(hdmi->dev, "Failed to enable HDMI vpll: %d\n", ret); return ret; } hdmi->phy = devm_phy_optional_get(dev, "hdmi"); if (IS_ERR(hdmi->phy)) { ret = PTR_ERR(hdmi->phy); if (ret != -EPROBE_DEFER) DRM_DEV_ERROR(hdmi->dev, "failed to get phy\n"); return ret; } drm_encoder_helper_add(encoder, &dw_hdmi_rockchip_encoder_helper_funcs); drm_encoder_init(drm, encoder, &dw_hdmi_rockchip_encoder_funcs, DRM_MODE_ENCODER_TMDS, NULL); platform_set_drvdata(pdev, hdmi); hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data); /* * If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(), * which would have called the encoder cleanup. Do it manually. */ if (IS_ERR(hdmi->hdmi)) { ret = PTR_ERR(hdmi->hdmi); drm_encoder_cleanup(encoder); clk_disable_unprepare(hdmi->vpll_clk); } return ret; }
static int ehci_orion_drv_probe(struct platform_device *pdev) { struct orion_ehci_data *pd = dev_get_platdata(&pdev->dev); const struct mbus_dram_target_info *dram; struct resource *res; struct usb_hcd *hcd; struct ehci_hcd *ehci; void __iomem *regs; int irq, err; enum orion_ehci_phy_ver phy_version; struct orion_ehci_hcd *priv; if (usb_disabled()) return -ENODEV; pr_debug("Initializing Orion-SoC USB Host Controller\n"); irq = platform_get_irq(pdev, 0); if (irq <= 0) { dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n", dev_name(&pdev->dev)); err = -ENODEV; goto err; } /* * Right now device-tree probed devices don't get dma_mask * set. Since shared usb code relies on it, set it here for * now. Once we have dma capability bindings this can go away. */ err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (err) goto err; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); regs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(regs)) { err = PTR_ERR(regs); goto err; } hcd = usb_create_hcd(&ehci_orion_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { err = -ENOMEM; goto err; } hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); hcd->regs = regs; ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs + 0x100; hcd->has_tt = 1; priv = hcd_to_orion_priv(hcd); /* * Not all platforms can gate the clock, so it is not an error if * the clock does not exists. */ priv->clk = devm_clk_get(&pdev->dev, NULL); if (!IS_ERR(priv->clk)) clk_prepare_enable(priv->clk); priv->phy = devm_phy_optional_get(&pdev->dev, "usb"); if (IS_ERR(priv->phy)) { err = PTR_ERR(priv->phy); goto err_phy_get; } else { err = phy_init(priv->phy); if (err) goto err_phy_init; err = phy_power_on(priv->phy); if (err) goto err_phy_power_on; } /* * (Re-)program MBUS remapping windows if we are asked to. */ dram = mv_mbus_dram_info(); if (dram) ehci_orion_conf_mbus_windows(hcd, dram); /* * setup Orion USB controller. */ if (pdev->dev.of_node) phy_version = EHCI_PHY_NA; else phy_version = pd->phy_version; switch (phy_version) { case EHCI_PHY_NA: /* dont change USB phy settings */ break; case EHCI_PHY_ORION: orion_usb_phy_v1_setup(hcd); break; case EHCI_PHY_DD: case EHCI_PHY_KW: default: dev_warn(&pdev->dev, "USB phy version isn't supported.\n"); } err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) goto err_add_hcd; device_wakeup_enable(hcd->self.controller); return 0; err_add_hcd: if (!IS_ERR(priv->phy)) phy_power_off(priv->phy); err_phy_power_on: if (!IS_ERR(priv->phy)) phy_exit(priv->phy); err_phy_init: err_phy_get: if (!IS_ERR(priv->clk)) clk_disable_unprepare(priv->clk); usb_put_hcd(hcd); err: dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), err); return err; }