From 9cbe0679b66b073490cb5df2024e9b7056973dff Mon Sep 17 00:00:00 2001
From: Sandy Huang <hjc@rock-chips.com>
Date: Thu, 2 Jul 2020 11:52:32 +0800
Subject: [PATCH] drm/rockchip: add rockchip_drm_sub_dev_list to record
 connector

use rockchip_drm_sub_dev_list to manage rockchip drm sub dev and record
connector, offer new method to find connector through the sub_dev_list.

Change-Id: If9508cf9ff51f6f9e1d13c42c60491f4aec4b9c1
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 57 +++++++++++++++++++++
 drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 10 ++++
 2 files changed, 67 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index f90acb26ba23..aeb0a895d951 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -38,6 +38,29 @@
 static bool is_support_iommu = true;
 static struct drm_driver rockchip_drm_driver;
 
+struct rockchip_drm_mode_set {
+	struct list_head head;
+	struct drm_framebuffer *fb;
+	struct drm_connector *connector;
+	struct drm_crtc *crtc;
+	struct drm_display_mode *mode;
+	int hdisplay;
+	int vdisplay;
+	int vrefresh;
+	int flags;
+	int picture_aspect_ratio;
+	int crtc_hsync_end;
+	int crtc_vsync_end;
+
+	int left_margin;
+	int right_margin;
+	int top_margin;
+	int bottom_margin;
+
+	bool mode_changed;
+	int ratio;
+};
+
 /**
  * rockchip_drm_of_find_possible_crtcs - find the possible CRTCs for an active
  * encoder port
@@ -75,6 +98,40 @@ uint32_t rockchip_drm_of_find_possible_crtcs(struct drm_device *dev,
 }
 EXPORT_SYMBOL(rockchip_drm_of_find_possible_crtcs);
 
+static DEFINE_MUTEX(rockchip_drm_sub_dev_lock);
+static LIST_HEAD(rockchip_drm_sub_dev_list);
+
+void rockchip_drm_register_sub_dev(struct rockchip_drm_sub_dev *sub_dev)
+{
+	mutex_lock(&rockchip_drm_sub_dev_lock);
+	list_add_tail(&sub_dev->list, &rockchip_drm_sub_dev_list);
+	mutex_unlock(&rockchip_drm_sub_dev_lock);
+}
+EXPORT_SYMBOL(rockchip_drm_register_sub_dev);
+
+void rockchip_drm_unregister_sub_dev(struct rockchip_drm_sub_dev *sub_dev)
+{
+	mutex_lock(&rockchip_drm_sub_dev_lock);
+	list_del(&sub_dev->list);
+	mutex_unlock(&rockchip_drm_sub_dev_lock);
+}
+EXPORT_SYMBOL(rockchip_drm_unregister_sub_dev);
+
+struct rockchip_drm_sub_dev *rockchip_drm_get_sub_dev(struct device_node *node)
+{
+	struct rockchip_drm_sub_dev *sub_dev = NULL;
+
+	mutex_lock(&rockchip_drm_sub_dev_lock);
+	list_for_each_entry(sub_dev, &rockchip_drm_sub_dev_list, list) {
+		if (sub_dev->of_node == node)
+			break;
+	}
+	mutex_unlock(&rockchip_drm_sub_dev_lock);
+
+	return sub_dev;
+}
+EXPORT_SYMBOL(rockchip_drm_get_sub_dev);
+
 int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
 				 const struct rockchip_crtc_funcs *crtc_funcs)
 {
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
index b58ced1a7c7f..cedce875976d 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
@@ -40,6 +40,12 @@ struct iommu_domain;
 #define VOP_OUTPUT_IF_HDMI0	BIT(11)
 #define VOP_OUTPUT_IF_HDMI1	BIT(12)
 
+struct rockchip_drm_sub_dev {
+	struct list_head list;
+	struct drm_connector *connector;
+	struct device_node *of_node;
+};
+
 struct rockchip_sdr2hdr_state {
 	int sdr2hdr_func;
 
@@ -181,6 +187,10 @@ int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
 				 const struct rockchip_crtc_funcs *crtc_funcs);
 void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc);
 
+void rockchip_drm_register_sub_dev(struct rockchip_drm_sub_dev *sub_dev);
+void rockchip_drm_unregister_sub_dev(struct rockchip_drm_sub_dev *sub_dev);
+struct rockchip_drm_sub_dev *rockchip_drm_get_sub_dev(struct device_node *node);
+
 int rockchip_drm_endpoint_is_subdriver(struct device_node *ep);
 uint32_t rockchip_drm_of_find_possible_crtcs(struct drm_device *dev,
 					     struct device_node *port);