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Fri, 20 Feb 2026 19:44:22 -0800 (PST) Received: from ryzen ([2601:644:8000:56f5::8bd]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-826dd8ba11bsm714951b3a.50.2026.02.20.19.44.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Feb 2026 19:44:21 -0800 (PST) From: Rosen Penev To: stable@vger.kernel.org Cc: Kenneth Feng , Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , Xinhui Pan , David Airlie , Simona Vetter , amd-gfx@lists.freedesktop.org (open list:AMD POWERPLAY AND SWSMU), dri-devel@lists.freedesktop.org (open list:DRM DRIVERS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 1/2] Revert "drm/amd/pm: Disable MCLK switching on SI at high pixel clocks" Date: Fri, 20 Feb 2026 19:44:01 -0800 Message-ID: <20260221034402.69537-2-rosenp@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260221034402.69537-1-rosenp@gmail.com> References: <20260221034402.69537-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This reverts commit d033e8cf4e8f6395102cdbc3cb00dc7cb9542f53. Cc: Timur Kristóf Cc: Alex Deucher Signed-off-by: Rosen Penev --- drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c b/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c index 29cecfab0704..05eaa06dfa34 100644 --- a/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c +++ b/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c @@ -3486,11 +3486,6 @@ static void si_apply_state_adjust_rules(struct amdgpu_device *adev, * for these GPUs to calculate bandwidth requirements. */ if (high_pixelclock_count) { - /* Work around flickering lines at the bottom edge - * of the screen when using a single 4K 60Hz monitor. - */ - disable_mclk_switching = true; - /* On Oland, we observe some flickering when two 4K 60Hz * displays are connected, possibly because voltage is too low. * Raise the voltage by requiring a higher SCLK. -- 2.53.0