diff mbox series

[7/7] drm/sun4i: dw-hdmi: check for phy device first

Message ID 20230924192604.3262187-8-jernej.skrabec@gmail.com
State New
Headers
Series drm/sun4i: dw-hdmi: Fix initialization & refactor |

Commit Message

Jernej Škrabec Sept. 24, 2023, 7:26 p.m. UTC 
  Let's check for phy device first. Since it uses much of the same clocks
and resets it also lowers amount of possible deferred probes.

While at it, don't report error for deferred phy probe.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c | 35 +++++++++++++--------------
 1 file changed, 17 insertions(+), 18 deletions(-)

Comments

Maxime Ripard Sept. 25, 2023, 7:50 a.m. UTC | #1 
On Sun, Sep 24, 2023 at 09:26:04PM +0200, Jernej Skrabec wrote:
> Let's check for phy device first. Since it uses much of the same clocks
> and resets it also lowers amount of possible deferred probes.

Much of the same clocks and resets than what? The HDMI controller?

If so, with the commit log modified

Acked-by: Maxime Ripard <mripard@kernel.org>

Maxime
diff mbox series

Patch

diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
index 41f815a1faec..c1becd964326 100644
--- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
+++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
@@ -173,11 +173,24 @@  static int sun8i_dw_hdmi_bind(struct device *dev, struct device *master,
 	struct device_node *phy_node;
 	struct drm_encoder *encoder;
 	struct sun8i_dw_hdmi *hdmi;
+	struct sun8i_hdmi_phy *phy;
 	int ret;
 
 	if (!pdev->dev.of_node)
 		return -ENODEV;
 
+	phy_node = of_parse_phandle(dev->of_node, "phys", 0);
+	if (!phy_node) {
+		dev_err(dev, "Can't find PHY phandle\n");
+		return -EINVAL;
+	}
+
+	phy = sun8i_hdmi_phy_get(phy_node);
+	of_node_put(phy_node);
+	if (IS_ERR(phy))
+		return dev_err_probe(dev, PTR_ERR(phy),
+				     "Couldn't get the HDMI PHY\n");
+
 	hdmi = drmm_kzalloc(drm, sizeof(*hdmi), GFP_KERNEL);
 	if (!hdmi)
 		return -ENOMEM;
@@ -185,6 +198,7 @@  static int sun8i_dw_hdmi_bind(struct device *dev, struct device *master,
 	plat_data = &hdmi->plat_data;
 	hdmi->dev = &pdev->dev;
 	encoder = &hdmi->encoder;
+	hdmi->phy = phy;
 
 	hdmi->quirks = of_device_get_match_data(dev);
 
@@ -232,22 +246,7 @@  static int sun8i_dw_hdmi_bind(struct device *dev, struct device *master,
 		goto err_assert_ctrl_reset;
 	}
 
-	phy_node = of_parse_phandle(dev->of_node, "phys", 0);
-	if (!phy_node) {
-		dev_err(dev, "Can't found PHY phandle\n");
-		ret = -EINVAL;
-		goto err_disable_clk_tmds;
-	}
-
-	hdmi->phy = sun8i_hdmi_phy_get(phy_node);
-	of_node_put(phy_node);
-	if (IS_ERR(hdmi->phy)) {
-		dev_err(dev, "Couldn't get the HDMI PHY\n");
-		ret = PTR_ERR(hdmi->phy);
-		goto err_disable_clk_tmds;
-	}
-
-	ret = sun8i_hdmi_phy_init(hdmi->phy);
+	ret = sun8i_hdmi_phy_init(phy);
 	if (ret)
 		goto err_disable_clk_tmds;
 
@@ -259,7 +258,7 @@  static int sun8i_dw_hdmi_bind(struct device *dev, struct device *master,
 	plat_data->mode_valid = hdmi->quirks->mode_valid;
 	plat_data->use_drm_infoframe = hdmi->quirks->use_drm_infoframe;
 	plat_data->output_port = 1;
-	sun8i_hdmi_phy_set_ops(hdmi->phy, plat_data);
+	sun8i_hdmi_phy_set_ops(phy, plat_data);
 
 	platform_set_drvdata(pdev, hdmi);
 
@@ -310,7 +309,7 @@  static int sun8i_dw_hdmi_bind(struct device *dev, struct device *master,
 	drm_bridge_remove(&hdmi->enc_bridge);
 	dw_hdmi_remove(hdmi->hdmi);
 err_deinit_phy:
-	sun8i_hdmi_phy_deinit(hdmi->phy);
+	sun8i_hdmi_phy_deinit(phy);
 err_disable_clk_tmds:
 	clk_disable_unprepare(hdmi->clk_tmds);
 err_assert_ctrl_reset: