• Vinod Koul's avatar
    clk: qcom: gcc-msm8996: Disable halt check on UFS tx clock · 5f75b78d
    Vinod Koul authored
    Commit 12d807cd ("clk: qcom: gcc-msm8996: Disable halt check on UFS
    clocks") marked BRANCH_HALT_SKIP for ufs rx clocks, but missed ufs tx
    clocks. The result of that is kernel warnings at reboot:
    
    [  105.624283] gcc_ufs_tx_symbol_0_clk status stuck at 'on'
    [  105.624311] WARNING: CPU: 1 PID: 1 at drivers/clk/qcom/clk-branch.c:100 clk_branch_toggle+0x190/0x1b0
    [  105.633235] Modules linked in:
    [  105.645118] CPU: 1 PID: 1 Comm: systemd-shutdow Tainted: G        W         4.18.0-rc2-00002-g2bfbe52a53a3 #11
    [  105.647988] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
    [  105.657966] pstate: 60000085 (nZCv daIf -PAN -UAO)
    [  105.664127] pc : clk_branch_toggle+0x190/0x1b0
    [  105.668900] lr : clk_branch_toggle+0x190/0x1b0
    [  105.673324] sp : ffff00000805bb40
    [  105.677751] x29: ffff00000805bb40 x28: 0000000000000000
    [  105.681140] x27: ffff8000d947cc60 x26: 0000000000000001
    [  105.686520] x25: ffff000008f71900 x24: 0000000000000000
    [  105.691816] x23: ffff00000925e338 x22: ffff00000855f8e0
    [  105.697114] x21: 0000000000000000 x20: 0000000000000000
    [  105.702407] x19: ffff0000091c9000 x18: ffffffffffffffff
    [  105.707702] x17: 0000ffffac148c58 x16: ffff000008b82928
    [  105.712998] x15: ffff0000091c96c8 x14: ffff0000893817c7
    [  105.718293] x13: ffff0000093817d5 x12: ffff0000091c9940
    [  105.723587] x11: ffff0000085e3e70 x10: ffff00000805b780
    [  105.728884] x9 : ffff00000805bb40 x8 : 7320737574617473
    [  105.734179] x7 : 206b6c635f305f6c x6 : 00000000000001e5
    [  105.739472] x5 : 0000000000000000 x4 : 0000000000000000
    [  105.744769] x3 : ffffffffffffffff x2 : ffff0000091e2658
    [  105.750063] x1 : a7c4712dd5e09c00 x0 : 0000000000000000
    [  105.755360] Call trace:
    [  105.760652]  clk_branch_toggle+0x190/0x1b0
    [  105.762824]  clk_branch2_disable+0x18/0x20
    [  105.766994]  clk_core_disable+0x58/0xa8
    [  105.771069]  clk_core_disable_lock+0x20/0x38
    [  105.774803]  clk_disable+0x1c/0x28
    [  105.779320]  __ufshcd_setup_clocks+0x298/0x308
    [  105.782529]  ufshcd_suspend+0x160/0x308
    [  105.786953]  ufshcd_shutdown+0x38/0xa0
    [  105.790690]  ufshcd_pltfrm_shutdown+0x10/0x18
    [  105.794512]  platform_drv_shutdown+0x20/0x30
    [  105.798935]  device_shutdown+0x110/0x1e8
    [  105.803278]  kernel_restart_prepare+0x34/0x40
    [  105.807181]  kernel_restart+0x14/0x78
    [  105.811434]  sys_reboot+0x200/0x248
    [  105.815081]  el0_svc_naked+0x30/0x34
    [  105.818378] ---[ end trace 8d2322276b27879c ]---
    
    Mark gcc_ufs_tx_symbol_0_clk as BRANCH_HALT_SKIP as well.
    
    Fixes: 12d807cd ("clk: qcom: gcc-msm8996: Disable halt check on UFS clocks")
    Reviewed-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
    Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
    Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
    5f75b78d
gcc-msm8996.c 92 KB