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SubjectRe: [PATCH v2] clk: qcom: smd: Add support for MSM8998 rpm clocks
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On 06/12/2018 23:11, Jeffrey Hugo wrote:

> Add rpm smd clocks, PMIC and bus clocks which are required on MSM8998
> for clients to vote on.
>
> Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
> ---
> v2
> -fix compatible ordering nits per Stephen
>
> .../devicetree/bindings/clock/qcom,rpmcc.txt | 1 +
> drivers/clk/qcom/clk-smd-rpm.c | 62 ++++++++++++++++++++++
> include/dt-bindings/clock/qcom,rpmcc.h | 6 +++
> 3 files changed, 69 insertions(+)

Hmmm, my board seems to dislike this patch... it locks up for a while,
then reboots.

[ 6.957289] ufshcd-qcom 1da4000.ufshc: ufshcd_query_flag: Sending flag query for idn 1 failed, err = -11
[ 6.961233] ufshcd-qcom 1da4000.ufshc: ufshcd_query_flag_retry: failed with error -11, retries 2
[ 6.970782] ufshcd-qcom 1da4000.ufshc: ufshcd_query_flag_retry: query attribute, opcode 6, idn 1, failed with error -11 after 3 retires
[ 6.979576] ufshcd-qcom 1da4000.ufshc: ufshcd_complete_dev_init setting fDeviceInit flag failed with error -11
[ 23.432798] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 23.432884] rcu: 7-...0: (1 GPs behind) idle=6a2/1/0x4000000000000000 softirq=92/93 fqs=2626
[ 23.437927] rcu: (detected by 0, t=5252 jiffies, g=-819, q=112)
[ 23.446425] Task dump for CPU 7:
[ 23.452567] swapper/0 R running task 0 1 0 0x0000002a
[ 23.455806] Call trace:
[ 23.462872] __switch_to+0x94/0xe0
[ 23.465009] _regmap_write+0x58/0xb0
[ 23.468452] _regmap_update_bits+0xf0/0x110
[ 23.472186] regmap_update_bits_base+0x60/0x90
[ 23.476110] clk_disable_regmap+0x34/0x40
[ 23.480614] clk_branch_toggle+0x108/0x1b0
[ 23.484681] clk_branch2_disable+0x18/0x20
[ 23.488692] clk_disable_unused_subtree+0xc4/0xe0
[ 23.492761] clk_disable_unused+0x3c/0x130
[ 23.497535] do_one_initcall+0x5c/0x180
[ 23.501557] kernel_init_freeable+0x198/0x244
[ 23.505276] kernel_init+0x10/0x110
[ 23.509768] ret_from_fork+0x10/0x20

/*** REBOOT ***/
Format: Log Type - Time(microsec) - Message - Optional Info
Log Type: B - Since Boot(Power On Reset), D - Delta, S - Statistic

I need to check the ufs_reset pin and phy init seq before I can investigate
this issue, but I wanted to send a report ASAP.

Regards.

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