[PATCH v4 5/5] drm/i915/display: Introduce DEFINE_SHOW_STORE_ATTRIBUTE for debugfs

[Luo Jiaxing <luojiaxing@xxxxxxxxxx>]

Seq introduce a new helper macro DEFINE_SHOW_STORE_ATTRIBUTE for
Read-Write file, so we apply it at drm/i915/display to reduce some
duplicated code.

Signed-off-by: Luo Jiaxing <luojiaxing@xxxxxxxxxx>
---
 .../gpu/drm/i915/display/intel_display_debugfs.c   | 55 ++--------------------
 1 file changed, 4 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 0bf31f9..8bf839f 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -1329,21 +1329,7 @@ static int i915_displayport_test_active_show(struct seq_file *m, void *data)
 	return 0;
 }
 
-static int i915_displayport_test_active_open(struct inode *inode,
-					     struct file *file)
-{
-	return single_open(file, i915_displayport_test_active_show,
-			   inode->i_private);
-}
-
-static const struct file_operations i915_displayport_test_active_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_displayport_test_active_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.write = i915_displayport_test_active_write
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(i915_displayport_test_active);
 
 static int i915_displayport_test_data_show(struct seq_file *m, void *data)
 {
@@ -1733,19 +1719,7 @@ static ssize_t i915_hpd_storm_ctl_write(struct file *file,
 	return len;
 }
 
-static int i915_hpd_storm_ctl_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, i915_hpd_storm_ctl_show, inode->i_private);
-}
-
-static const struct file_operations i915_hpd_storm_ctl_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_hpd_storm_ctl_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.write = i915_hpd_storm_ctl_write
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(i915_hpd_storm_ctl);
 
 static int i915_hpd_short_storm_ctl_show(struct seq_file *m, void *data)
 {
@@ -1811,14 +1785,7 @@ static ssize_t i915_hpd_short_storm_ctl_write(struct file *file,
 	return len;
 }
 
-static const struct file_operations i915_hpd_short_storm_ctl_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_hpd_short_storm_ctl_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.write = i915_hpd_short_storm_ctl_write,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(i915_hpd_short_storm_ctl);
 
 static int i915_drrs_ctl_set(void *data, u64 val)
 {
@@ -2181,21 +2148,7 @@ static ssize_t i915_dsc_fec_support_write(struct file *file,
 	return len;
 }
 
-static int i915_dsc_fec_support_open(struct inode *inode,
-				     struct file *file)
-{
-	return single_open(file, i915_dsc_fec_support_show,
-			   inode->i_private);
-}
-
-static const struct file_operations i915_dsc_fec_support_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_dsc_fec_support_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.write = i915_dsc_fec_support_write
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(i915_dsc_fec_support);
 
 /**
  * intel_connector_debugfs_add - add i915 specific connector debugfs files
-- 
2.7.4