[PATCH 1/4] phy: Add HDMI configuration options

From: Cristian Ciocaltea
Date: Fri Dec 06 2024 - 17:04:15 EST


From: Sandor Yu <Sandor.yu@xxxxxxx>

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@xxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Maxime Ripard <mripard@xxxxxxxxxx>
Link: https://lore.kernel.org/r/43757beec6cd418fc17252283de38009d531c7c7.1732627815.git.Sandor.yu@xxxxxxx
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
---
include/linux/phy/phy-hdmi.h | 19 +++++++++++++++++++
include/linux/phy/phy.h | 7 ++++++-
2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/include/linux/phy/phy-hdmi.h b/include/linux/phy/phy-hdmi.h
new file mode 100644
index 0000000000000000000000000000000000000000..6a696922bc7f29af63d88646701b2c0fcee5c885
--- /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 03cd5bae92d3f189d739c453fe4c160dd2a5063e..4ac486b101fe4023b8f2a84e907e65a0ff0a5ede 100644
--- 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;
};

/**

--
2.47.0