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[129.46.232.65]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8b02ac7d4e6sm251899256d6.20.2026.04.26.23.35.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 26 Apr 2026 23:35:30 -0700 (PDT) From: Yongxing Mou Date: Mon, 27 Apr 2026 14:35:19 +0800 Subject: [PATCH v5 1/5] phy: qcom: edp: Unify generic DP/eDP swing and pre-emphasis tables Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260427-edp_phy-v5-1-3bb876824475@oss.qualcomm.com> References: <20260427-edp_phy-v5-0-3bb876824475@oss.qualcomm.com> In-Reply-To: <20260427-edp_phy-v5-0-3bb876824475@oss.qualcomm.com> To: Vinod Koul , Neil Armstrong , Stephen Boyd , Bjorn Andersson Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Yongxing Mou , stable@vger.kernel.org, Konrad Dybcio , Dmitry Baryshkov X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1777271722; l=3980; i=yongxing.mou@oss.qualcomm.com; s=20250910; h=from:subject:message-id; bh=Fg3wV9TgWVv5u8ucAiklna4tkeUeVZmRlfG6VfBXnx0=; b=4aMB9c2y017pyM3zsrCgCqjBhc1orRHRVrwWiqxA37pUc948TsHRbjMOqG1C7yMsCh4o26TzM MfCtVKXCKkTAUpWwguOnqtLoJGVZFLncfP+Tvml+g+cT2B9gwiB6hGA X-Developer-Key: i=yongxing.mou@oss.qualcomm.com; a=ed25519; pk=rAy5J1eP+V7OXqH5FJ7ngMCtUrnHhut30ZTldOj52UM= X-Proofpoint-GUID: 2Eqen3QZb-QAWCc521SiNVwPyBGdXHKz X-Authority-Analysis: v=2.4 cv=cbriaHDM c=1 sm=1 tr=0 ts=69ef03b4 cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=C3Dk8TwHQYyIj7nOf9RCJw==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=_hJh01-1qFuxGScrDK8A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 X-Proofpoint-ORIG-GUID: 2Eqen3QZb-QAWCc521SiNVwPyBGdXHKz X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDI3MDA2OCBTYWx0ZWRfXwhdo6PjXWAnA R/SPMJRxNJ66N5gHdfWHE16zQuTVi3RuwoBIjR38BcF2EKQm3GCq5POdChkiHUe5QkV924KNvwS g+h6PI+grfnBlAbwdGES7xnX/xiyHtgX31gXx0k7WjKMRhBB3Zt2VlCqEL/T2xNjjQ8RNIUKbkC gpAgR4umRMbDLqggR6w4eDP1oUI48pewINNqqAwQVQTdw0S28UPxe1iXYw3VH+eEaCuHARa6oPe 81i9smkIpWG/+IUEvybIq4IrA6+wRm7+kfxpU0k7Z2LknqJrjP9hKgCCVAyHBu99gNX1zH3vzNu uxxB7MsOWmiK73hPF0/9+K8K3FLmLL1Qc8WLTayc5+Ig0iuDPIFcocZIAiyyoeEg/inYo9mWOTI dZneU1tt2ZfSJSSRIYkHrqI29MAmKiO4M0MQyN/m6Ql1nd+UKvLLPdKhJNRsaU8dKifuXvveOGz bk0HRW/yYIOxmT3M+0w== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-27_01,2026-04-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 priorityscore=1501 spamscore=0 malwarescore=0 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604270068 The current eDP and DP swing/pre-emphasis tables do not match the HPG requirements for the supported platforms, correct the table accordingly. The generic tables which can be shared as follows: DP modeļ¼š -sa8775p/sc7280/sc8280xp/x1e80100 -glymur -sc8180x eDP mode(low vdiff): -glymur/sa8775p/sc8280xp/x1e80100 -sc7280 -sc8180x The proper tables for SC8180X and SC7280 will be added in a later patch, since they need separate table. Cc: stable@vger.kernel.org Fixes: f199223cb490 ("phy: qcom: Introduce new eDP PHY driver") Reviewed-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov Signed-off-by: Yongxing Mou --- drivers/phy/qualcomm/phy-qcom-edp.c | 41 +++++++++---------------------------- 1 file changed, 10 insertions(+), 31 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c index 7372de05a0b8..2af3fd63832f 100644 --- a/drivers/phy/qualcomm/phy-qcom-edp.c +++ b/drivers/phy/qualcomm/phy-qcom-edp.c @@ -116,17 +116,17 @@ struct qcom_edp { }; static const u8 dp_swing_hbr_rbr[4][4] = { - { 0x08, 0x0f, 0x16, 0x1f }, + { 0x07, 0x0f, 0x16, 0x1f }, { 0x11, 0x1e, 0x1f, 0xff }, { 0x16, 0x1f, 0xff, 0xff }, { 0x1f, 0xff, 0xff, 0xff } }; static const u8 dp_pre_emp_hbr_rbr[4][4] = { - { 0x00, 0x0d, 0x14, 0x1a }, + { 0x00, 0x0e, 0x15, 0x1a }, { 0x00, 0x0e, 0x15, 0xff }, { 0x00, 0x0e, 0xff, 0xff }, - { 0x03, 0xff, 0xff, 0xff } + { 0x04, 0xff, 0xff, 0xff } }; static const u8 dp_swing_hbr2_hbr3[4][4] = { @@ -158,7 +158,7 @@ static const u8 edp_swing_hbr_rbr[4][4] = { }; static const u8 edp_pre_emp_hbr_rbr[4][4] = { - { 0x05, 0x12, 0x17, 0x1d }, + { 0x05, 0x11, 0x17, 0x1d }, { 0x05, 0x11, 0x18, 0xff }, { 0x06, 0x11, 0xff, 0xff }, { 0x00, 0xff, 0xff, 0xff } @@ -172,10 +172,10 @@ static const u8 edp_swing_hbr2_hbr3[4][4] = { }; static const u8 edp_pre_emp_hbr2_hbr3[4][4] = { - { 0x08, 0x11, 0x17, 0x1b }, - { 0x00, 0x0c, 0x13, 0xff }, - { 0x05, 0x10, 0xff, 0xff }, - { 0x00, 0xff, 0xff, 0xff } + { 0x0c, 0x15, 0x19, 0x1e }, + { 0x0b, 0x15, 0x19, 0xff }, + { 0x0e, 0x14, 0xff, 0xff }, + { 0x0d, 0xff, 0xff, 0xff } }; static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = { @@ -193,27 +193,6 @@ static const u8 edp_phy_vco_div_cfg_v4[4] = { 0x01, 0x01, 0x02, 0x00, }; -static const u8 edp_pre_emp_hbr_rbr_v5[4][4] = { - { 0x05, 0x11, 0x17, 0x1d }, - { 0x05, 0x11, 0x18, 0xff }, - { 0x06, 0x11, 0xff, 0xff }, - { 0x00, 0xff, 0xff, 0xff } -}; - -static const u8 edp_pre_emp_hbr2_hbr3_v5[4][4] = { - { 0x0c, 0x15, 0x19, 0x1e }, - { 0x0b, 0x15, 0x19, 0xff }, - { 0x0e, 0x14, 0xff, 0xff }, - { 0x0d, 0xff, 0xff, 0xff } -}; - -static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg_v5 = { - .swing_hbr_rbr = &edp_swing_hbr_rbr, - .swing_hbr3_hbr2 = &edp_swing_hbr2_hbr3, - .pre_emphasis_hbr_rbr = &edp_pre_emp_hbr_rbr_v5, - .pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3_v5, -}; - static const u8 edp_phy_aux_cfg_v5[DP_AUX_CFG_SIZE] = { 0x00, 0x13, 0xa4, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03, 0x02, 0x02, 0x00, }; @@ -564,7 +543,7 @@ static const struct qcom_edp_phy_cfg sa8775p_dp_phy_cfg = { .is_edp = false, .aux_cfg = edp_phy_aux_cfg_v5, .vco_div_cfg = edp_phy_vco_div_cfg_v4, - .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg_v5, + .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg, .ver_ops = &qcom_edp_phy_ops_v4, }; @@ -945,7 +924,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v8 = { static struct qcom_edp_phy_cfg glymur_phy_cfg = { .aux_cfg = edp_phy_aux_cfg_v8, .vco_div_cfg = edp_phy_vco_div_cfg_v8, - .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg_v5, + .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg, .ver_ops = &qcom_edp_phy_ops_v8, }; -- 2.43.0