linux-kernel - Re: [PATCH v3 0/6] MSM8998 basic USB support

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Date:   Wed, 13 Feb 2019 12:55:00 +0100
From:   Marc Gonzalez <marc.w.gonzalez@...e.fr>
To:     Jeffrey Hugo <jhugo@...eaurora.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        MSM <linux-arm-msm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/6] MSM8998 basic USB support

On 21/01/2019 22:31, Jeffrey Hugo wrote:

> This series provides basic USB support for MSM8998.  Currently missing is
> wiring up the Type-C detection logic so that the controller can correctly
> switch between host and peripheral modes.  Work to implement that is
> ongoing, and expected to appear soon in followup patches.  Also missing is
> Display Port (DP) support which apparently is different from sdm845 and
> needs additional investigation.

FTR and FWIW:

_regmap_update_bits: reg=88014 old=3 new=2
[    CLK_BASE + 88014] = 00000002
------------[ cut here ]------------
gcc_rx1_usb2_clkref_clk status stuck at 'on'
WARNING: CPU: 3 PID: 1 at drivers/clk/qcom/clk-branch.c:92 clk_branch_toggle+0x19c/0x1c0
Modules linked in:
CPU: 3 PID: 1 Comm: swapper/0 Tainted: G S      W         5.0.0-rc6 #13
Hardware name: Qualcomm Technologies, Inc. MSM8998 v1 MTP (DT)
pstate: 60000085 (nZCv daIf -PAN -UAO)
pc : clk_branch_toggle+0x19c/0x1c0
lr : clk_branch_toggle+0x19c/0x1c0
sp : ffffff801005bc60
x29: ffffff801005bc60 x28: ffffff8010627464 
x27: ffffff8010c7b000 x26: ffffff80105b06d4 
x25: ffffff801054b1b8 x24: 0000000000000000 
x23: ffffff8010c39c18 x22: ffffff80102bf2f0 
x21: 0000000000000000 x20: ffffff8010c08000 
x19: 0000000000000000 x18: ffffffffffffffff 
x17: 0000000000000000 x16: 0000000000000000 
x15: ffffff8010c08548 x14: ffffff8010c807f0 
x13: ffffff8010c80431 x12: ffffff8010c14000 
x11: ffffff801005bc60 x10: ffffff801005bc60 
x9 : 00000000ffffffc8 x8 : 7320737574617473 
x7 : 206b6c635f666572 x6 : ffffff8010c7fabc 
x5 : 0000000000000000 x4 : 0000000000000000 
x3 : 00000000ffffffff x2 : 00000040ecf69000 
x1 : 59b62fd98d8ce200 x0 : 0000000000000000 
Call trace:
 clk_branch_toggle+0x19c/0x1c0
 clk_branch2_disable+0x2c/0x40
 clk_disable_unused_subtree+0xe8/0x250
 clk_disable_unused_subtree+0x34/0x250
 clk_disable_unused_subtree+0x34/0x250
 clk_disable_unused+0x44/0x140
 do_one_initcall+0x68/0x250
 kernel_init_freeable+0x288/0x32c
 kernel_init+0x18/0x110
 ret_from_fork+0x10/0x1c
---[ end trace d1565111e6d9749a ]---