[PATCH 05/17] drm/i915: Add file ops for Displayport configuration in debugfs

[Todd Previte <tprevite@gmail.com>]

This patch was also part of "[PATCH 05/10] drm/i915: Add debugfs interface
for Displayport debug and compliance testing". Adds file operations structures
for Displayport configuration in debugfs for compliance testing. Also adds
the declarations for the open() and write() functions listed in the file ops
structure.

Signed-off-by: Todd Previte <tprevite@gmail.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 65b4f5e..feae100 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3694,6 +3694,28 @@ static const struct file_operations i915_display_crc_ctl_fops = {
 	.write = display_crc_ctl_write
 };
 
+static int displayport_config_ctl_open(struct inode *inode,
+				       struct file *file)
+{
+	return 0;
+}
+
+static ssize_t displayport_config_ctl_write(struct file *file,
+					    const char __user *ubuf,
+					    size_t len, loff_t *offp)
+{
+	return 0;
+}
+
+static const struct file_operations i915_displayport_config_ctl_fops = {
+	.owner = THIS_MODULE,
+	.open = displayport_config_ctl_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.write = displayport_config_ctl_write
+};
+
 static void wm_latency_show(struct seq_file *m, const uint16_t wm[8])
 {
 	struct drm_device *dev = m->private;
@@ -4446,6 +4468,7 @@ static const struct i915_debugfs_files {
 	{"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
 	{"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
 	{"i915_fbc_false_color", &i915_fbc_fc_fops},
+	{"i915_displayport_config_ctl", &i915_displayport_config_ctl_fops}
 };
 
 void intel_display_crc_init(struct drm_device *dev)
-- 
1.9.1

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