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From: "Mario Limonciello (AMD)" <superm1@kernel.org>
To: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org,
	"Mario Limonciello (AMD)" <superm1@kernel.org>
Subject: [PATCH v5 07/11] drm/amd/display: Move backlight tracing out of the dc lock
Date: Sun, 31 May 2026 06:49:04 -0500	[thread overview]
Message-ID: <20260531114908.1693426-8-superm1@kernel.org> (raw)
In-Reply-To: <20260531114908.1693426-1-superm1@kernel.org>

The backlight tracing doesn't need to be done with DC lock held as
it's using information that is fed into the function.

Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 430b7d3d8930..f6610902eee4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5371,13 +5371,6 @@ static void amdgpu_dm_backlight_set_level(struct amdgpu_display_manager *dm,
 	if (caps->brightness_mask)
 		brightness |= caps->brightness_mask;
 
-	/* Change brightness based on AUX property */
-	mutex_lock(&dm->dc_lock);
-	if (dm->dc->caps.ips_support && dm->dc->ctx->dmub_srv->idle_allowed) {
-		dc_allow_idle_optimizations(dm->dc, false);
-		reallow_idle = true;
-	}
-
 	if (trace_amdgpu_dm_brightness_enabled()) {
 		trace_amdgpu_dm_brightness(__builtin_return_address(0),
 					   user_brightness,
@@ -5386,6 +5379,13 @@ static void amdgpu_dm_backlight_set_level(struct amdgpu_display_manager *dm,
 					   power_supply_is_system_supplied() > 0);
 	}
 
+	/* Change brightness based on AUX property */
+	mutex_lock(&dm->dc_lock);
+	if (dm->dc->caps.ips_support && dm->dc->ctx->dmub_srv->idle_allowed) {
+		dc_allow_idle_optimizations(dm->dc, false);
+		reallow_idle = true;
+	}
+
 	if (caps->aux_support) {
 		rc = dc_link_set_backlight_level_nits(link, true, brightness,
 						      AUX_BL_DEFAULT_TRANSITION_TIME_MS);
-- 
2.54.0


  parent reply	other threads:[~2026-05-31 11:49 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-31 11:48 [PATCH v5 00/11] Add support for a DRM backlight capability Mario Limonciello (AMD)
2026-05-31 11:48 ` [PATCH v5 01/11] Revert "backlight: Remove notifier" Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:48 ` [PATCH v5 02/11] backlight: add kernel-internal backlight API Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:49 ` [PATCH v5 03/11] drm: link connectors to backlight devices Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:49 ` [PATCH v5 04/11] DRM: Add support for client indicating support for luminance Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:49 ` [PATCH v5 05/11] drm/amd/display: Pass up errors reading actual brightness Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:49 ` [PATCH v5 06/11] drm/amd/display: Allow backlight registration to fail Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:49 ` Mario Limonciello (AMD) [this message]
2026-06-04  4:54   ` Claude review: drm/amd/display: Move backlight tracing out of the dc lock Claude Code Review Bot
2026-05-31 11:49 ` [PATCH v5 08/11] drm/amd/display: use drm backlight Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:49 ` [PATCH v5 09/11] drm/amd/display: Drop brightness caching in amdgpu_dm Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:49 ` [PATCH v5 10/11] drm/bridge: auto-link panel backlight in bridge connector Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-05-31 11:49 ` [PATCH v5 11/11] drm/i915/display: use drm backlight Mario Limonciello (AMD)
2026-06-04  4:54   ` Claude review: " Claude Code Review Bot
2026-06-04  4:54 ` Claude review: Add support for a DRM backlight capability Claude Code Review Bot

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