[v2,04/10] phy: Add HDMI configuration options

Commit Message

Sandor Yu Nov. 4, 2022, 6:44 a.m. UTC

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 <[e-mail]>
---
 include/linux/phy/phy-hdmi.h | 33 +++++++++++++++++++++++++++++++++
 include/linux/phy/phy.h      |  7 ++++++-
 2 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 include/linux/phy/phy-hdmi.h

Patch

diff --git a/include/linux/phy/phy-hdmi.h b/include/linux/phy/phy-hdmi.h
new file mode 100644
index 000000000000..73a32eb535b0
--- /dev/null
+++ b/include/linux/phy/phy-hdmi.h
@@ -0,0 +1,33 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2022 NXP
+ */
+
+#ifndef __PHY_HDMI_H_
+#define __PHY_HDMI_H_
+
+enum hdmi_phy_colorspace {
+	HDMI_PHY_COLORSPACE_RGB,
+	HDMI_PHY_COLORSPACE_YUV422,
+	HDMI_PHY_COLORSPACE_YUV444,
+	HDMI_PHY_COLORSPACE_YUV420,
+	HDMI_PHY_COLORSPACE_RESERVED4,
+	HDMI_PHY_COLORSPACE_RESERVED5,
+	HDMI_PHY_COLORSPACE_RESERVED6,
+};
+
+/**
+ * struct phy_configure_opts_hdmi - HDMI configuration set
+ * @pixel_clk_rate:	Pixel clock of video modes in KHz.
+ * @bpc: Maximum bits per color channel.
+ * @color_space: Colorspace in enum hdmi_phy_colorspace.
+ *
+ * This structure is used to represent the configuration state of a HDMI phy.
+ */
+struct phy_configure_opts_hdmi {
+	unsigned int pixel_clk_rate;
+	unsigned int bpc;
+	enum hdmi_phy_colorspace color_space;
+};
+
+#endif /* __PHY_HDMI_H_ */
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index b1413757fcc3..6f6873ea7270 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;
 };
 
 /**