linux-kernel - Re: [PATCH 00/13] soundwire: intel: add power management support

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Message-ID: <d8f8f64f-34db-9c9a-c821-83dda3b2db9a@linux.intel.com>
Date:   Mon, 17 Aug 2020 09:46:22 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Vinod Koul <vkoul@...nel.org>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>
Cc:     alsa-devel@...a-project.org, tiwai@...e.de,
        gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        ranjani.sridharan@...ux.intel.com, hui.wang@...onical.com,
        broonie@...nel.org, srinivas.kandagatla@...aro.org,
        jank@...ence.com, mengdong.lin@...el.com,
        slawomir.blauciak@...el.com, sanyog.r.kale@...el.com,
        rander.wang@...ux.intel.com, bard.liao@...el.com
Subject: Re: [PATCH 00/13] soundwire: intel: add power management support

On 8/17/20 7:08 AM, Vinod Koul wrote:
> On 22-07-20, 04:37, Bard Liao wrote:
>> This series adds power management support for Intel soundwire links.
> 
> I had applied except 3 & 9 (few skipped in middle due to conflict while
> applying), BUT I get a build failure on patch 2 onwards :(
> 
> drivers/soundwire/intel_init.c: In function ‘sdw_intel_cleanup’:
> drivers/soundwire/intel_init.c:72:4: error: implicit declaration of function ‘pm_runtime_disable’ [-Werror=implicit-function-declaration]
>     72 |    pm_runtime_disable(&link->pdev->dev);
> 
> I suspect due to missing header? I was on x64 build with allmodconfig
> 
> So only patch 1 is applied and pushed now

I just tried on these series applied on top of soundwire/next

commit 9b3b4b3f2f2af863d2f6dd65afd295a5a673afa2 (soundwire/next)

     soundwire: intel: Add basic power management support

And I don't see any issue?

If you want to double-check merge issues, I pushed the code here: 
https://github.com/plbossart/sound/tree/sdw/pm_runtime_soundwire_next

I am really not sure what conflicts you are referring to, git am worked 
fine for me, only skipped the first patch that's already applied.

$git am ~/Downloads/alsa/122/\[PATCH\ *
Applying: soundwire: intel: Add basic power management support
error: patch failed: drivers/soundwire/intel.c:463
error: drivers/soundwire/intel.c: patch does not apply
Patch failed at 0001 soundwire: intel: Add basic power management support
hint: Use 'git am --show-current-patch' to see the failed patch
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".
$ git am --skip
Applying: soundwire: intel: add pm_runtime support
Applying: soundwire: intel: reset pm_runtime status during system resume
Applying: soundwire: intel: fix race condition on system resume
Applying: soundwire: intel: call helper to reset Slave states on resume
Applying: soundwire: intel: reinitialize IP+DSP in .prepare(), but only 
when resuming
Applying: soundwire: intel: pm_runtime idle scheduling
Applying: soundwire: intel: add CLK_STOP_TEARDOWN for pm_runtime suspend
Applying: soundwire: intel: add CLK_STOP_BUS_RESET support
Applying: soundwire: intel: add CLK_STOP_NOT_ALLOWED support
Applying: soundwire: intel_init: handle power rail dependencies for 
clock stop mode
Applying: soundwire: intel: support clock_stop mode without quirks
Applying: soundwire: intel: refine runtime pm for 
SDW_INTEL_CLK_STOP_BUS_RESET

I tried the compilation twice, once with our default SOF config and once 
with allmodconfig.

make drivers/soundwire/ W=1
   GEN     Makefile
   YACC    scripts/genksyms/parse.tab.[ch]
/data/pbossart/ktest/broonie-next/scripts/genksyms/parse.y: warning: 9 
shift/reduce conflicts [-Wconflicts-sr]
/data/pbossart/ktest/broonie-next/scripts/genksyms/parse.y: warning: 5 
reduce/reduce conflicts [-Wconflicts-rr]
   HOSTCC  scripts/genksyms/parse.tab.o
   HOSTCC  scripts/genksyms/lex.lex.o
   HOSTLD  scripts/genksyms/genksyms
   CC      scripts/mod/empty.o
   MKELF   scripts/mod/elfconfig.h
   HOSTCC  scripts/mod/modpost.o
   CC      scripts/mod/devicetable-offsets.s
   HOSTCC  scripts/mod/file2alias.o
   HOSTCC  scripts/mod/sumversion.o
   HOSTLD  scripts/mod/modpost
   CC      kernel/bounds.s
   CC      arch/x86/kernel/asm-offsets.s
   CALL    /data/pbossart/ktest/broonie-next/scripts/checksyscalls.sh
   CALL    /data/pbossart/ktest/broonie-next/scripts/atomic/check-atomics.sh
   DESCEND  objtool
   CC [M]  drivers/soundwire/bus_type.o
   CC [M]  drivers/soundwire/bus.o
   CC [M]  drivers/soundwire/master.o
   CC [M]  drivers/soundwire/slave.o
   CC [M]  drivers/soundwire/mipi_disco.o
   CC [M]  drivers/soundwire/stream.o
   CC [M]  drivers/soundwire/sysfs_slave.o
   CC [M]  drivers/soundwire/sysfs_slave_dpn.o
   CC [M]  drivers/soundwire/debugfs.o
   LD [M]  drivers/soundwire/soundwire-bus.o
   CC [M]  drivers/soundwire/cadence_master.o
   LD [M]  drivers/soundwire/soundwire-cadence.o
   CC [M]  drivers/soundwire/intel.o
   CC [M]  drivers/soundwire/intel_init.o
   LD [M]  drivers/soundwire/soundwire-intel.o
   CC [M]  drivers/soundwire/qcom.o
   LD [M]  drivers/soundwire/soundwire-qcom.o