phy: Add HDMI configuration options

Allow HDMI PHYs to be configured through the generic
functions through a custom structure added to the generic union.

The parameters added here are based on HDMI PHY
implementation practices.  The current set of parameters
should cover the potential users.

Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/d1cff6c03ec3732d2244022029245ab2d954d997.1734340233.git.Sandor.yu@nxp.com
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20250318-phy-sam-hdptx-bpc-v6-1-8cb1678e7663@collabora.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/include/linux/phy/phy-hdmi.h b/include/linux/phy/phy-hdmi.h
new file mode 100644 (file)
index 0000000..6a69692
--- /dev/null
+++ b/include/linux/phy/phy-hdmi.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2022,2024 NXP
+ */
+
+#ifndef __PHY_HDMI_H_
+#define __PHY_HDMI_H_
+
+/**
+ * struct phy_configure_opts_hdmi - HDMI configuration set
+ * @tmds_char_rate: HDMI TMDS Character Rate in Hertz.
+ *
+ * This structure is used to represent the configuration state of a HDMI phy.
+ */
+struct phy_configure_opts_hdmi {
+       unsigned long long tmds_char_rate;
+};
+
+#endif /* __PHY_HDMI_H_ */

diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index e63e6e70e860421539179c8178cbe742410cc546..437769e061b7030105c9ea4e9b0da9d32b6fa158 100644 (file)
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -17,6 +17,7 @@
 #include <linux/regulator/consumer.h>
 
 #include <linux/phy/phy-dp.h>
+#include <linux/phy/phy-hdmi.h>
 #include <linux/phy/phy-lvds.h>
 #include <linux/phy/phy-mipi-dphy.h>
 
@@ -42,7 +43,8 @@ enum phy_mode {
        PHY_MODE_MIPI_DPHY,
        PHY_MODE_SATA,
        PHY_MODE_LVDS,
-       PHY_MODE_DP
+       PHY_MODE_DP,
+       PHY_MODE_HDMI,
 };
 
 enum phy_media {
@@ -60,11 +62,14 @@ enum phy_media {
  *             the DisplayPort protocol.
  * @lvds:      Configuration set applicable for phys supporting
  *             the LVDS phy mode.
+ * @hdmi:      Configuration set applicable for phys supporting
+ *             the HDMI phy mode.
  */
 union phy_configure_opts {
        struct phy_configure_opts_mipi_dphy     mipi_dphy;
        struct phy_configure_opts_dp            dp;
        struct phy_configure_opts_lvds          lvds;
+       struct phy_configure_opts_hdmi          hdmi;
 };
 
 /**