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[2001:14ba:a0c3:3a00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54c1e672306sm1515306e87.237.2025.04.08.06.54.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Apr 2025 06:54:26 -0700 (PDT) From: Dmitry Baryshkov Subject: [PATCH v2 0/3] drm/display: hdmi: provide common code to get Audio Clock Recovery params Date: Tue, 08 Apr 2025 16:54:24 +0300 Message-Id: <20250408-drm-hdmi-acr-v2-0-dee7298ab1af@oss.qualcomm.com> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAJAq9WcC/1XMQQrCMBCF4auUWTuSxIrWlfeQLpJO0gzYRiZSl JK7GwsuXP4P3rdC9sI+w6VZQfzCmdNcw+waGKKdR49MtcEoc1QHdUaSCSNNjHYQPFnSQZHShgL Uy0N84NfG3frakfMzyXvTF/1df1D3Dy0aFTrXDaY1oaXWXe88W0n7JCP0pZQPf5TImakAAAA= X-Change-ID: 20250308-drm-hdmi-acr-7ad1f0d012df To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Canal?= , Raspberry Pi Kernel Maintenance , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Dmitry Baryshkov Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1669; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=xsWGBJl8SLI8+M9O3/9jyj/1Cn/0TZ1NdGVYYXEzM7c=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBn9SqRPfqX7xAPkR8Vmyj6YhBnUQjd1EtJetVwi N7z9QsIuYqJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZ/UqkQAKCRCLPIo+Aiko 1SFxCACvwWCoVqXlqEYSfKXGeSI4vuwcBPWduErCQ3Tqww1D+5gMAePZdnisD6o+fedPih0W5vB WJDC6SvpNy1BeJhmSY2r3zfQLgwM7TOIBk+HwCogQnvPPdiUFUV1q46m5kclh9okJCy0whNcLZ2 yTjxf4I4HbvG+sswym0zIRQUlBerGMC7MZNR1SrJObRDj9ibzBEyWR8OBaOFM7zLhDxWGPhLmEf L0XLQHcQqea72NUCNY8okKvAHO67rguEN6mWZySsVWxcpMU5cODcXkk8AtQLeH+yJsqmHea80eT YbDWDISq2PVsfG/QUhCHeTiXfTucDtCHqDzOYjqe3mq9SWcZ X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-GUID: OTDyO_ygUhf9gRYSh1QditTIPB7QFRaU X-Proofpoint-ORIG-GUID: OTDyO_ygUhf9gRYSh1QditTIPB7QFRaU X-Authority-Analysis: v=2.4 cv=I/9lRMgg c=1 sm=1 tr=0 ts=67f52a94 cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=XR8D0OoHHMoA:10 a=VwQbUJbxAAAA:8 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=mWnm1Bu5f2UsoqAo_2UA:9 a=QEXdDO2ut3YA:10 a=OIgjcC2v60KrkQgK7BGD:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-08_06,2025-04-08_03,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxscore=0 phishscore=0 suspectscore=0 mlxlogscore=999 lowpriorityscore=0 spamscore=0 clxscore=1015 malwarescore=0 adultscore=0 priorityscore=1501 impostorscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504080098 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" HDMI standards define a recommended set of values to be used for Audio Clock Regeneration. Nevertheless, each HDMI driver dealing with audio implements its own way to determine those values. Implement a common helper and use it for MSM HDMI (tested), VC4 and DW-HDMI (compile-tested only) drivers. Note, this helper simply implements the database for these values (HDMI Section 7.2). The question of selecting supported formats and rates should be handled by sound/soc/codecs/hdmi-codec.c (pretty much like it is handled by sound/pci/hda/patch_hdmi.c). Signed-off-by: Dmitry Baryshkov --- Changes in v2: - Added missing EXPORT_SYMBOL(drm_hdmi_acr_get_n_cts) (LKP) - Extended documentation to explicitly mention L-PCM (Maxime) - Dropped VC4 and rockchip patchets as I'm not able to test them. - Link to v1: https://lore.kernel.org/r/20250309-drm-hdmi-acr-v1-0-bb9c242f4d4b@linaro.org --- Dmitry Baryshkov (3): drm/display: hdmi: provide central data authority for ACR params drm/msm/hdmi: move msm_hdmi_audio_update() out of msm_hdmi_set_timings() drm/msm/hdmi: use new helper for ACR tables drivers/gpu/drm/display/drm_hdmi_helper.c | 168 ++++++++++++++++++++++++++++++ drivers/gpu/drm/msm/hdmi/hdmi_audio.c | 107 ++----------------- drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 8 +- include/drm/display/drm_hdmi_helper.h | 6 ++ 4 files changed, 186 insertions(+), 103 deletions(-) --- base-commit: 2bdde620f7f2bff2ff1cb7dc166859eaa0c78a7c change-id: 20250308-drm-hdmi-acr-7ad1f0d012df Best regards,