From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 548A413D896; Tue, 23 Jul 2024 18:40:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721760030; cv=none; b=uyrsjC0RxTJ6Hluf1hhtVGLnzvyJtsEwmCCVJbPi37dEqfx07akmRJRvWYsWkvTsEStGL+e/ZHRClCjV99tpBWdZA0dMg5AGSOCe932ZspRD5wzz/xe+EUHnCEGbKeJ5ricnfZ9Ym9W1fKowXq9QY9/pmIwcUF62RtpzKsUhJWA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721760030; c=relaxed/simple; bh=JfiT0Sg8s71c7gNZR4MUQiRAk0duQRq0P329BR0Wgus=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZkuKhqFtsAXSID4NRZ54HBIX7KXdP6zudIMueGkOZAwz70gS09r7FfaWUx9tO6wWRbVcRcjlzMWoN33RJAY/V5hznwfE8ULhM1KgnRjvUm+PfgKdxG4iBInUl99ojcRRq0Ohcbd7MgdJbORK57nvCKAuqpXnlADy+pCfYajgsuE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Ueoq/cuh; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Ueoq/cuh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4974C4AF0A; Tue, 23 Jul 2024 18:40:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1721760030; bh=JfiT0Sg8s71c7gNZR4MUQiRAk0duQRq0P329BR0Wgus=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ueoq/cuhDWOx5ZHrw2EUefg+xoS6cuWecM3NKd8rzPkT35WHrQhI5LyPfwzPuihdY 4veDDOLg1C8LPMlKkENOBhJvQBCZSnpv/fP42uFwXGpXWZpmIbTj3caAF+Qvn0498G lF16a4FLYdAmriDsVU3aY7CYkdRniLeyJdepl7o4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nicholas Kazlauskas , Zaeem Mohamed , Daniel Miess , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 6.9 080/163] drm/amd/display: Change dram_clock_latency to 34us for dcn351 Date: Tue, 23 Jul 2024 20:23:29 +0200 Message-ID: <20240723180146.560987665@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240723180143.461739294@linuxfoundation.org> References: <20240723180143.461739294@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Daniel Miess [ Upstream commit c60e20f13c27662de36cd5538d6299760780db52 ] [Why] Intermittent underflow observed when using 4k144 display on dcn351 [How] Update dram_clock_change_latency_us from 11.72us to 34us Reviewed-by: Nicholas Kazlauskas Acked-by: Zaeem Mohamed Signed-off-by: Daniel Miess Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c index b3ffab77cf889..40ca38dd1b23e 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c @@ -215,7 +215,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_51_soc = { .urgent_latency_pixel_data_only_us = 4.0, .urgent_latency_pixel_mixed_with_vm_data_us = 4.0, .urgent_latency_vm_data_only_us = 4.0, - .dram_clock_change_latency_us = 11.72, + .dram_clock_change_latency_us = 34, .urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096, .urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096, .urgent_out_of_order_return_per_channel_vm_only_bytes = 4096, -- 2.43.0