C++ (Cpp) rockchip_dp_pre_init Examples

Example #1

File: analogix_dp-rockchip.c Project: AK101111/linux

static int rockchip_dp_init(struct rockchip_dp_device *dp)
{
	struct device *dev = dp->dev;
	struct device_node *np = dev->of_node;
	int ret;

	dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
	if (IS_ERR(dp->grf)) {
		dev_err(dev, "failed to get rockchip,grf property\n");
		return PTR_ERR(dp->grf);
	}

	dp->grfclk = devm_clk_get(dev, "grf");
	if (PTR_ERR(dp->grfclk) == -ENOENT) {
		dp->grfclk = NULL;
	} else if (PTR_ERR(dp->grfclk) == -EPROBE_DEFER) {
		return -EPROBE_DEFER;
	} else if (IS_ERR(dp->grfclk)) {
		dev_err(dev, "failed to get grf clock\n");
		return PTR_ERR(dp->grfclk);
	}

	dp->pclk = devm_clk_get(dev, "pclk");
	if (IS_ERR(dp->pclk)) {
		dev_err(dev, "failed to get pclk property\n");
		return PTR_ERR(dp->pclk);
	}

	dp->rst = devm_reset_control_get(dev, "dp");
	if (IS_ERR(dp->rst)) {
		dev_err(dev, "failed to get dp reset control\n");
		return PTR_ERR(dp->rst);
	}

	ret = clk_prepare_enable(dp->pclk);
	if (ret < 0) {
		dev_err(dp->dev, "failed to enable pclk %d\n", ret);
		return ret;
	}

	ret = rockchip_dp_pre_init(dp);
	if (ret < 0) {
		dev_err(dp->dev, "failed to pre init %d\n", ret);
		clk_disable_unprepare(dp->pclk);
		return ret;
	}

	return 0;
}

Example #2

File: analogix_dp-rockchip.c Project: 513855417/linux

static int rockchip_dp_poweron(struct analogix_dp_plat_data *plat_data)
{
	struct rockchip_dp_device *dp = to_dp(plat_data);
	int ret;

	ret = clk_prepare_enable(dp->pclk);
	if (ret < 0) {
		dev_err(dp->dev, "failed to enable pclk %d\n", ret);
		return ret;
	}

	ret = rockchip_dp_pre_init(dp);
	if (ret < 0) {
		dev_err(dp->dev, "failed to dp pre init %d\n", ret);
		return ret;
	}

	return 0;
}