[v6,10/14] phy: rockchip: samsung-hdptx: Provide config params validation support

Commit Message

Cristian Ciocaltea March 18, 2025, 12:35 p.m. UTC

Implement the phy_ops.validate() callback to allow checking the PHY
configuration parameters without actually applying them.

Reviewed-by: Dmitry Baryshkov <[e-mail]>
Signed-off-by: Cristian Ciocaltea <[e-mail]>
---
 drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Patch

diff --git a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c
index 62de40515338730a56a83972ad57a7e71c3ca5cb..80dd896861bcac6ef9dbde410327b893f8039627 100644
--- a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c
+++ b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c
@@ -1799,10 +1799,22 @@  static int rk_hdptx_phy_configure(struct phy *phy, union phy_configure_opts *opt
 	return 0;
 }
 
+static int rk_hdptx_phy_validate(struct phy *phy, enum phy_mode mode,
+				 int submode, union phy_configure_opts *opts)
+{
+	struct rk_hdptx_phy *hdptx = phy_get_drvdata(phy);
+
+	if (mode != PHY_MODE_DP)
+		return rk_hdptx_phy_verify_hdmi_config(hdptx, &opts->hdmi);
+
+	return rk_hdptx_phy_verify_dp_config(hdptx, &opts->dp);
+}
+
 static const struct phy_ops rk_hdptx_phy_ops = {
 	.power_on  = rk_hdptx_phy_power_on,
 	.power_off = rk_hdptx_phy_power_off,
 	.configure = rk_hdptx_phy_configure,
+	.validate  = rk_hdptx_phy_validate,
 	.owner	   = THIS_MODULE,
 };