linux-kernel - [PATCH v14 2/7] phy: Add HDMI configuration options

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Message-Id: <064ffb53f4ecf25f5d07f64d050ae0a4646ed9fc.1708395604.git.Sandor.yu@nxp.com>
Date: Tue, 20 Feb 2024 11:23:50 +0800
From: Sandor Yu <Sandor.yu@....com>
To: dmitry.baryshkov@...aro.org,
	andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	Laurent.pinchart@...asonboard.com,
	jonas@...boo.se,
	jernej.skrabec@...il.com,
	airlied@...il.com,
	daniel@...ll.ch,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	festevam@...il.com,
	vkoul@...nel.org,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-phy@...ts.infradead.org
Cc: kernel@...gutronix.de,
	linux-imx@....com,
	Sandor.yu@....com,
	oliver.brown@....com,
	alexander.stein@...tq-group.com,
	sam@...nborg.org
Subject: [PATCH v14 2/7] 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@....com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Acked-by: Vinod Koul <vkoul@...nel.org>
---
v9->v14:
 *No change.

 include/linux/phy/phy-hdmi.h | 24 ++++++++++++++++++++++++
 include/linux/phy/phy.h      |  7 ++++++-
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 include/linux/phy/phy-hdmi.h

diff --git a/include/linux/phy/phy-hdmi.h b/include/linux/phy/phy-hdmi.h
new file mode 100644
index 0000000000000..b7de88e9090f0
--- /dev/null
+++ b/include/linux/phy/phy-hdmi.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2022 NXP
+ */
+
+#ifndef __PHY_HDMI_H_
+#define __PHY_HDMI_H_
+
+#include <linux/hdmi.h>
+/**
+ * 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_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_colorspace color_space;
+};
+
+#endif /* __PHY_HDMI_H_ */
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index aa76609ba2580..0731b8b707f7c 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;
 };
 
 /**
-- 
2.34.1