drm/i915/display: use drm->debugfs_root for creating debugfs files

Since commit 0b30d57acafc ("drm/debugfs: rework debugfs directory
creation v5") we should be using drm->debugfs_root instead of
minor->debugfs_root for creating debugfs files.

As a rule of thumb, use a local variable when there are two or more
uses, otherwise just have the single reference inline.

Drop drm/drm_file.h include where possible.

Reviewed-by: Luca Coelho <[e-mail]>
Link: https://lore.kernel.org/r/e82[e-mail]
Signed-off-by: Jani Nikula <[e-mail]>

drivers/gpu/drm/i915/display/intel_bios.c

···
 
 void intel_bios_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
-
-	debugfs_create_file("i915_vbt", 0444, minor->debugfs_root,
+	debugfs_create_file("i915_vbt", 0444, display->drm->debugfs_root,
 			    display, &intel_bios_vbt_fops);
 }

drivers/gpu/drm/i915/display/intel_cdclk.c

···
 
 void intel_cdclk_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
-
-	debugfs_create_file("i915_cdclk_info", 0444, minor->debugfs_root,
+	debugfs_create_file("i915_cdclk_info", 0444, display->drm->debugfs_root,
 			    display, &i915_cdclk_info_fops);
 }
 

drivers/gpu/drm/i915/display/intel_display_debugfs.c

···
 
 void intel_display_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
+	struct dentry *debugfs_root = display->drm->debugfs_root;
 
-	debugfs_create_file("i915_fifo_underrun_reset", 0644, minor->debugfs_root,
+	debugfs_create_file("i915_fifo_underrun_reset", 0644, debugfs_root,
 			    display, &i915_fifo_underrun_reset_ops);
 
 	drm_debugfs_create_files(intel_display_debugfs_list,
 				 ARRAY_SIZE(intel_display_debugfs_list),
-				 minor->debugfs_root, minor);
+				 debugfs_root, display->drm->primary);
 
 	intel_bios_debugfs_register(display);
 	intel_cdclk_debugfs_register(display);

drivers/gpu/drm/i915/display/intel_display_debugfs_params.c

···
 #include <linux/kernel.h>
 
 #include <drm/drm_drv.h>
-#include <drm/drm_file.h>
 
 #include "intel_display_core.h"
 #include "intel_display_debugfs_params.h"
···
 /* add a subdirectory with files for each intel display param */
 void intel_display_debugfs_params(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
+	struct dentry *debugfs_root = display->drm->debugfs_root;
 	struct dentry *dir;
 	char dirname[16];
 
 	snprintf(dirname, sizeof(dirname), "%s_params", display->drm->driver->name);
-	dir = debugfs_lookup(dirname, minor->debugfs_root);
+	dir = debugfs_lookup(dirname, debugfs_root);
 	if (!dir)
-		dir = debugfs_create_dir(dirname, minor->debugfs_root);
+		dir = debugfs_create_dir(dirname, debugfs_root);
 	if (IS_ERR(dir))
 		return;
 

drivers/gpu/drm/i915/display/intel_dmc.c

···
 
 void intel_dmc_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
-
-	debugfs_create_file("i915_dmc_info", 0444, minor->debugfs_root,
+	debugfs_create_file("i915_dmc_info", 0444, display->drm->debugfs_root,
 			    display, &intel_dmc_debugfs_status_fops);
 }
 

drivers/gpu/drm/i915/display/intel_dp_test.c

···
 #include <drm/display/drm_dp.h>
 #include <drm/display/drm_dp_helper.h>
 #include <drm/drm_edid.h>
-#include <drm/drm_file.h>
 #include <drm/drm_print.h>
 #include <drm/drm_probe_helper.h>
 
···
 
 void intel_dp_test_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(intel_display_debugfs_files); i++) {
 		debugfs_create_file(intel_display_debugfs_files[i].name,
 				    0644,
-				    minor->debugfs_root,
+				    display->drm->debugfs_root,
 				    display,
 				    intel_display_debugfs_files[i].fops);
 	}

drivers/gpu/drm/i915/display/intel_fbc.c

···
 /* FIXME: remove this once igt is on board with per-crtc stuff */
 void intel_fbc_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
 	struct intel_fbc *fbc;
 
 	fbc = display->fbc[INTEL_FBC_A];
 	if (fbc)
-		intel_fbc_debugfs_add(fbc, minor->debugfs_root);
+		intel_fbc_debugfs_add(fbc, display->drm->debugfs_root);
 }

drivers/gpu/drm/i915/display/intel_hotplug.c

···
 
 void intel_hpd_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
+	struct dentry *debugfs_root = display->drm->debugfs_root;
 
-	debugfs_create_file("i915_hpd_storm_ctl", 0644, minor->debugfs_root,
+	debugfs_create_file("i915_hpd_storm_ctl", 0644, debugfs_root,
 			    display, &i915_hpd_storm_ctl_fops);
-	debugfs_create_file("i915_hpd_short_storm_ctl", 0644, minor->debugfs_root,
+	debugfs_create_file("i915_hpd_short_storm_ctl", 0644, debugfs_root,
 			    display, &i915_hpd_short_storm_ctl_fops);
-	debugfs_create_bool("i915_ignore_long_hpd", 0644, minor->debugfs_root,
+	debugfs_create_bool("i915_ignore_long_hpd", 0644, debugfs_root,
 			    &display->hotplug.ignore_long_hpd);
 }

drivers/gpu/drm/i915/display/intel_opregion.c

···
 
 void intel_opregion_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
-
-	debugfs_create_file("i915_opregion", 0444, minor->debugfs_root,
+	debugfs_create_file("i915_opregion", 0444, display->drm->debugfs_root,
 			    display, &intel_opregion_fops);
 }

drivers/gpu/drm/i915/display/intel_psr.c

···
 
 void intel_psr_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
+	struct dentry *debugfs_root = display->drm->debugfs_root;
 
-	debugfs_create_file("i915_edp_psr_debug", 0644, minor->debugfs_root,
+	debugfs_create_file("i915_edp_psr_debug", 0644, debugfs_root,
 			    display, &i915_edp_psr_debug_fops);
 
-	debugfs_create_file("i915_edp_psr_status", 0444, minor->debugfs_root,
+	debugfs_create_file("i915_edp_psr_status", 0444, debugfs_root,
 			    display, &i915_edp_psr_status_fops);
 }
 

drivers/gpu/drm/i915/display/intel_wm.c

···
 
 #include <linux/debugfs.h>
 
-#include <drm/drm_file.h>
 #include <drm/drm_print.h>
 
 #include "i9xx_wm.h"
···
 
 void intel_wm_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
+	struct dentry *debugfs_root = display->drm->debugfs_root;
 
-	debugfs_create_file("i915_pri_wm_latency", 0644, minor->debugfs_root,
+	debugfs_create_file("i915_pri_wm_latency", 0644, debugfs_root,
 			    display, &i915_pri_wm_latency_fops);
 
-	debugfs_create_file("i915_spr_wm_latency", 0644, minor->debugfs_root,
+	debugfs_create_file("i915_spr_wm_latency", 0644, debugfs_root,
 			    display, &i915_spr_wm_latency_fops);
 
-	debugfs_create_file("i915_cur_wm_latency", 0644, minor->debugfs_root,
+	debugfs_create_file("i915_cur_wm_latency", 0644, debugfs_root,
 			    display, &i915_cur_wm_latency_fops);
 
 	skl_watermark_debugfs_register(display);

drivers/gpu/drm/i915/display/skl_watermark.c

···
 #include <linux/debugfs.h>
 
 #include <drm/drm_blend.h>
-#include <drm/drm_file.h>
 #include <drm/drm_print.h>
 
 #include "soc/intel_dram.h"
···
 
 void skl_watermark_debugfs_register(struct intel_display *display)
 {
-	struct drm_minor *minor = display->drm->primary;
+	struct dentry *debugfs_root = display->drm->debugfs_root;
 
 	if (HAS_IPC(display))
-		debugfs_create_file("i915_ipc_status", 0644, minor->debugfs_root,
+		debugfs_create_file("i915_ipc_status", 0644, debugfs_root,
 				    display, &skl_watermark_ipc_status_fops);
 
 	if (HAS_SAGV(display))
-		debugfs_create_file("i915_sagv_status", 0444, minor->debugfs_root,
+		debugfs_create_file("i915_sagv_status", 0444, debugfs_root,
 				    display, &intel_sagv_status_fops);
 }