From: James Flowers <bold.zone2373@fastmail.com>
To: harry.wentland@amd.com, sunpeng.li@amd.com, siqueira@igalia.com,
alexander.deucher@amd.com, christian.koenig@amd.com,
airlied@gmail.com, simona@ffwll.ch, aurabindo.pillai@amd.com,
alex.hung@amd.com, skhan@linuxfoundation.org
Cc: James Flowers <bold.zone2373@fastmail.com>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel-mentees@lists.linux.dev,
linux-kernel@vger.kernel.org
Subject: [PATCH] drm/amd/display: replace use of msleep(<20) with usleep_range for better accuracy
Date: Wed, 26 Mar 2025 00:00:10 -0700 [thread overview]
Message-ID: <20250326070054.68355-1-bold.zone2373@fastmail.com> (raw)
msleep < 20ms will often sleep for ~20ms (according to Documentation/timers/timers-howto.rst).
Signed-off-by: James Flowers <bold.zone2373@fastmail.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 2cd35392e2da..2d225735602b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -682,7 +682,7 @@ static bool execute_synaptics_rc_command(struct drm_dp_aux *aux,
if (rc_cmd == cmd)
// active is 0
break;
- msleep(10);
+ usleep_range(10000, 10200);
}
// read rc result
--
2.49.0
next reply other threads:[~2025-03-26 7:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-26 7:00 James Flowers [this message]
2025-03-28 22:46 ` [PATCH] drm/amd/display: replace use of msleep(<20) with usleep_range for better accuracy Shuah Khan
2025-03-29 6:54 ` James
2025-03-31 12:34 ` Christian König
2025-03-31 18:20 ` Harry Wentland
2025-04-01 4:23 ` James
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