Re: [PATCH 09/11] soundwire: intel: add dynamic debug trace for clock-stop invalid configs

From: Pierre-Louis Bossart
Date: Wed Aug 26 2020 - 10:40:36 EST




On 8/26/20 4:48 AM, Vinod Koul wrote:
On 18-08-20, 10:41, Bard Liao wrote:
From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>

Detect cases where the clock is assumed to be stopped but the IP is
not in the relevant state, and add a dynamic debug trace.

you meant a debug print..and it looks like error print below (also in title).

I don't understand the comment. Is the 'trace' confusing and are you asking to e.g. change the commit message to 'add dynamic debug log'?



Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
drivers/soundwire/intel.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 7c63581270fd..b82d02af3c4f 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -1964,6 +1964,11 @@ static int intel_resume_runtime(struct device *dev)
}
}
} else if (!clock_stop_quirks) {
+
+ clock_stop0 = sdw_cdns_is_clock_stop(&sdw->cdns);
+ if (!clock_stop0)
+ dev_err(dev, "%s invalid configuration, clock was not stopped", __func__);
+
ret = intel_init(sdw);
if (ret) {
dev_err(dev, "%s failed: %d", __func__, ret);
--
2.17.1