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From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Vinod Koul <vkoul@kernel.org>
Cc: alsa-devel@alsa-project.org, tiwai@suse.de,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	broonie@kernel.org, srinivas.kandagatla@linaro.org,
	jank@cadence.com, slawomir.blauciak@intel.com,
	Sanyog Kale <sanyog.r.kale@intel.com>
Subject: Re: [alsa-devel] [PATCH 1/6] soundwire: fix startup sequence for Intel/Cadence
Date: Mon, 16 Sep 2019 13:14:12 -0500	[thread overview]
Message-ID: <4734e29e-859d-745b-5cc6-ce70ca6e6c99@linux.intel.com> (raw)
In-Reply-To: <dc16e4d8-1d95-542c-869e-bdefc37d059b@linux.intel.com>


>>> @@ -1043,8 +1043,6 @@ static int intel_probe(struct platform_device 
>>> *pdev)
>>>       if (ret)
>>>           goto err_init;
>>> -    ret = sdw_cdns_enable_interrupt(&sdw->cdns);
>>> -
>>>       /* Read the PDI config and initialize cadence PDI */
>>>       intel_pdi_init(sdw, &config);
>>>       ret = sdw_cdns_pdi_init(&sdw->cdns, config);
>>> @@ -1062,6 +1060,18 @@ static int intel_probe(struct platform_device 
>>> *pdev)
>>>           goto err_init;
>>>       }
>>> +    ret = sdw_cdns_enable_interrupt(&sdw->cdns);
>>> +    if (ret < 0) {
>>> +        dev_err(sdw->cdns.dev, "cannot enable interrupts\n");
>>> +        goto err_init;
>>> +    }
>>> +
>>> +    ret = sdw_cdns_exit_reset(&sdw->cdns);
>>> +    if (ret < 0) {
>>> +        dev_err(sdw->cdns.dev, "unable to exit bus reset sequence\n");
>>> +        goto err_init;
>>
>> Don't you want to disable interrupts at least... before you return
>> error? err_init does bus cleanup and not controller one
> 
> yes good point, let me look at this.

The existing code has no interrupt disable sequence.

I will add this improved error handling in a follow-up patch, after the 
capability to disable interrupts is added.

WARNING: multiple messages have this Message-ID (diff)
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Vinod Koul <vkoul@kernel.org>
Cc: alsa-devel@alsa-project.org, tiwai@suse.de,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	broonie@kernel.org, srinivas.kandagatla@linaro.org,
	jank@cadence.com, slawomir.blauciak@intel.com,
	Sanyog Kale <sanyog.r.kale@intel.com>
Subject: Re: [alsa-devel] [PATCH 1/6] soundwire: fix startup sequence for Intel/Cadence
Date: Mon, 16 Sep 2019 13:14:12 -0500	[thread overview]
Message-ID: <4734e29e-859d-745b-5cc6-ce70ca6e6c99@linux.intel.com> (raw)
In-Reply-To: <dc16e4d8-1d95-542c-869e-bdefc37d059b@linux.intel.com>


>>> @@ -1043,8 +1043,6 @@ static int intel_probe(struct platform_device 
>>> *pdev)
>>>       if (ret)
>>>           goto err_init;
>>> -    ret = sdw_cdns_enable_interrupt(&sdw->cdns);
>>> -
>>>       /* Read the PDI config and initialize cadence PDI */
>>>       intel_pdi_init(sdw, &config);
>>>       ret = sdw_cdns_pdi_init(&sdw->cdns, config);
>>> @@ -1062,6 +1060,18 @@ static int intel_probe(struct platform_device 
>>> *pdev)
>>>           goto err_init;
>>>       }
>>> +    ret = sdw_cdns_enable_interrupt(&sdw->cdns);
>>> +    if (ret < 0) {
>>> +        dev_err(sdw->cdns.dev, "cannot enable interrupts\n");
>>> +        goto err_init;
>>> +    }
>>> +
>>> +    ret = sdw_cdns_exit_reset(&sdw->cdns);
>>> +    if (ret < 0) {
>>> +        dev_err(sdw->cdns.dev, "unable to exit bus reset sequence\n");
>>> +        goto err_init;
>>
>> Don't you want to disable interrupts at least... before you return
>> error? err_init does bus cleanup and not controller one
> 
> yes good point, let me look at this.

The existing code has no interrupt disable sequence.

I will add this improved error handling in a follow-up patch, after the 
capability to disable interrupts is added.
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  reply	other threads:[~2019-09-16 18:14 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-13 21:32 [PATCH 0/6] soundwire: inits and PM additions for 5.4 Pierre-Louis Bossart
2019-08-13 21:32 ` [PATCH 1/6] soundwire: fix startup sequence for Intel/Cadence Pierre-Louis Bossart
2019-09-04  7:11   ` Vinod Koul
2019-09-04  7:11     ` [alsa-devel] " Vinod Koul
2019-09-04 13:16     ` Pierre-Louis Bossart
2019-09-04 13:16       ` Pierre-Louis Bossart
2019-09-16 18:14       ` Pierre-Louis Bossart [this message]
2019-09-16 18:14         ` Pierre-Louis Bossart
2019-08-13 21:32 ` [PATCH 2/6] soundwire: cadence_master: add hw_reset capability in debugfs Pierre-Louis Bossart
2019-09-04  7:13   ` Vinod Koul
2019-09-04  7:13     ` [alsa-devel] " Vinod Koul
2019-09-04 13:18     ` Pierre-Louis Bossart
2019-09-04 13:18       ` Pierre-Louis Bossart
2019-09-04 16:49       ` Vinod Koul
2019-09-04 16:49         ` Vinod Koul
2019-09-04 17:43         ` Pierre-Louis Bossart
2019-09-04 17:43           ` Pierre-Louis Bossart
2019-08-13 21:32 ` [PATCH 3/6] soundwire: intel: add helper for initialization Pierre-Louis Bossart
2019-08-13 21:32 ` [PATCH 4/6] soundwire: intel: Add basic power management support Pierre-Louis Bossart
2019-08-13 21:32 ` [PATCH 5/6] soundwire: cadence_master: make clock stop exit configurable on init Pierre-Louis Bossart
2019-08-13 21:32 ` [PATCH 6/6] soundwire: intel: add pm_runtime support Pierre-Louis Bossart
2019-08-21 19:23 ` [alsa-devel] [PATCH 0/6] soundwire: inits and PM additions for 5.4 Pierre-Louis Bossart

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