On lemans chipset, edp reference clock is being voted by ufs mem phy
(ufs_mem_phy: phy@1d87000). But after commit 77d2fa54a945
("scsi: ufs: qcom : Refactor phy_power_on/off calls") edp reference
clock is getting turned off, leading to below phy poweron failure on
lemans edp phy.[ 19.830220] phy phy-aec2a00.phy.10: phy poweron failed --> -110 [ 19.842112] mdss_0_disp_cc_mdss_dptx0_link_clk status stuck at 'off' [ 19.842131] WARNING: CPU: 2 PID: 371 at drivers/clk/qcom/clk-branch.c:87 clk_branch_toggle+0x174/0x18c [ 19.984356] Hardware name: Qualcomm QCS9100 Ride (DT) [ 19.989548] pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 19.996697] pc : clk_branch_toggle+0x174/0x18c [ 20.001267] lr : clk_branch_toggle+0x174/0x18c [ 20.005833] sp : ffff8000863ebbc0 [ 20.009251] x29: ffff8000863ebbd0 x28: 0000000000000000 x27: 0000000000000000 [ 20.016579] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000001 [ 20.023915] x23: ffff0000c53de980 x22: 0000000000000001 x21: ffffb4b57fd8d710 [ 20.031245] x20: ffffb4b5bb238b88 x19: 0000000000000000 x18: ffffffffffff7198 [ 20.038584] x17: 0000000000000014 x16: ffffb4b5bb1e2330 x15: 0000000000000048 [ 20.045926] x14: 0000000000000000 x13: ffffb4b5bd386a48 x12: 0000000000000dfb [ 20.053263] x11: 00000000000004a9 x10: ffffb4b5bd3e5a20 x9 : ffffb4b5bd386a48 [ 20.060600] x8 : 00000000ffffefff x7 : ffffb4b5bd3dea48 x6 : 00000000000004a9 [ 20.067934] x5 : ffff000eb7d38408 x4 : 40000000fffff4a9 x3 : ffff4b58fb2b7000 [ 20.075269] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000ec4fc3480 [ 20.082601] Call trace: [ 20.085127] clk_branch_toggle+0x174/0x18c (P) [ 20.089705] clk_branch2_enable+0x1c/0x28 [ 20.093829] clk_core_enable+0x6c/0xac [ 20.097687] clk_enable+0x2c/0x4c [ 20.101104] clk_bulk_enable+0x4c/0xd8 [ 20.104964] msm_dp_ctrl_enable_mainlink_clocks+0x184/0x24c [msm] [ 20.111294] msm_dp_ctrl_on_link+0xb0/0x400 [msm] [ 20.116178] msm_dp_display_process_hpd_high+0x110/0x190 [msm] [ 20.122209] msm_dp_hpd_plug_handle.isra.0+0xac/0x1c4 [msm] [ 20.127983] hpd_event_thread+0x320/0x5cc [msm] [ 20.132680] kthread+0x12c/0x204 [ 20.136011] ret_from_fork+0x10/0x20 [ 20.139699] ---[ end trace 0000000000000000 ]--- [ 20.144489] Failed to enable clk 'ctrl_link': -16 [ 20.149340] [drm:msm_dp_ctrl_enable_mainlink_clocks [msm]] *ERROR* Unable to start link clocks. ret=-16 This series adds support for voting the clock from lemans edp phy driver. --- This series is dependent on below series: https://lore.kernel.org/all/20251030-phy-qcom-edp-add-missing-refclk-v5-0-fce8c76f8...@linaro.org/ Change in v3: - Rebase to latest linux-next and latest version 5 of dependency. - Squash both DT binding patches together. [Dmitry, Rob] - Add dt-binding change in sorted order. [Dmitry] - Update commit message of bindings patch to give more detail of the problem. [Bjorn] - Update commit message of devicetree patch and add Fixes tag. [Dmitry] - Link to v1: https://lore.kernel.org/all/[email protected]/ Change in v2: - Rebase on top of dependent series. [Krzysztof] - Remove duplicate patches and make changes limited to lemans. - Link to v1: https://lore.kernel.org/all/[email protected]/ --- Ritesh Kumar (3): dt-bindings: phy: qcom-edp: Add missing clock for sa8775p dt-bindings: display/msm: qcom,sa8775p-mdss: update edp phy example arm64: dts: qcom: lemans: Add edp reference clock for edp phy .../bindings/display/msm/qcom,sa8775p-mdss.yaml | 6 ++++-- .../devicetree/bindings/phy/qcom,edp-phy.yaml | 1 + arch/arm64/boot/dts/qcom/lemans.dtsi | 12 ++++++++---- 3 files changed, 13 insertions(+), 6 deletions(-) -- 2.17.1
