[PATCH v2 5/5] drm/i915/display: Introduce DEFINE_SHOW_STORE_ATTRIBUTE for debugfs

[Luo Jiaxing]

Seq instroduce a new helper marco DEFINE_SHOW_STORE_ATTRIBUTE for
Read-Write file, So we apply it at drm/i915/display to reduce some
duplicate code.

Signed-off-by: Luo Jiaxing <luojiax...@huawei.com>
---
 .../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