int __must_check devm_clk_bulk_get_all(struct device *dev, struct clk_bulk_data **clks) { struct clk_bulk_devres *devres; int ret; devres = devres_alloc(devm_clk_bulk_release, sizeof(*devres), GFP_KERNEL); if (!devres) return -ENOMEM; ret = clk_bulk_get_all(dev, &devres->clks); if (ret > 0) { *clks = devres->clks; devres->num_clks = ret; devres_add(dev, devres); } else { devres_free(devres); } return ret; }
static int dwc3_of_simple_probe(struct platform_device *pdev) { struct dwc3_of_simple *simple; struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; int ret; bool shared_resets = false; simple = devm_kzalloc(dev, sizeof(*simple), GFP_KERNEL); if (!simple) return -ENOMEM; platform_set_drvdata(pdev, simple); simple->dev = dev; /* * Some controllers need to toggle the usb3-otg reset before trying to * initialize the PHY, otherwise the PHY times out. */ if (of_device_is_compatible(np, "rockchip,rk3399-dwc3")) simple->need_reset = true; if (of_device_is_compatible(np, "amlogic,meson-axg-dwc3") || of_device_is_compatible(np, "amlogic,meson-gxl-dwc3")) { shared_resets = true; simple->pulse_resets = true; } simple->resets = of_reset_control_array_get(np, shared_resets, true, true); if (IS_ERR(simple->resets)) { ret = PTR_ERR(simple->resets); dev_err(dev, "failed to get device resets, err=%d\n", ret); return ret; } if (simple->pulse_resets) { ret = reset_control_reset(simple->resets); if (ret) goto err_resetc_put; } else { ret = reset_control_deassert(simple->resets); if (ret) goto err_resetc_put; } ret = clk_bulk_get_all(simple->dev, &simple->clks); if (ret < 0) goto err_resetc_assert; simple->num_clocks = ret; ret = clk_bulk_prepare_enable(simple->num_clocks, simple->clks); if (ret) goto err_resetc_assert; ret = of_platform_populate(np, NULL, NULL, dev); if (ret) goto err_clk_put; pm_runtime_set_active(dev); pm_runtime_enable(dev); pm_runtime_get_sync(dev); return 0; err_clk_put: clk_bulk_disable_unprepare(simple->num_clocks, simple->clks); clk_bulk_put_all(simple->num_clocks, simple->clks); err_resetc_assert: if (!simple->pulse_resets) reset_control_assert(simple->resets); err_resetc_put: reset_control_put(simple->resets); return ret; }