From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org,
vkoul@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com,
srinivas.kandagatla@linaro.org, slawomir.blauciak@intel.com,
Bard liao <yung-chuan.liao@linux.intel.com>,
Rander Wang <rander.wang@linux.intel.com>,
Ranjani Sridharan <ranjani.sridharan@linux.intel.com>,
Hui Wang <hui.wang@canonical.com>,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Sanyog Kale <sanyog.r.kale@intel.com>
Subject: [PATCH 04/16] soundwire: cadence: handle error cases with CONFIG_UPDATE
Date: Wed, 11 Mar 2020 13:41:16 -0500 [thread overview]
Message-ID: <20200311184128.4212-5-pierre-louis.bossart@linux.intel.com> (raw)
In-Reply-To: <20200311184128.4212-1-pierre-louis.bossart@linux.intel.com>
config_update() may time out or cannot be use in ClockStopMode
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
drivers/soundwire/cadence_master.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index 71cba2585151..4089c271305a 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -239,6 +239,11 @@ static int cdns_config_update(struct sdw_cdns *cdns)
{
int ret;
+ if (sdw_cdns_is_clock_stop(cdns)) {
+ dev_err(cdns->dev, "Cannot program MCP_CONFIG_UPDATE in ClockStopMode\n");
+ return -EINVAL;
+ }
+
ret = cdns_clear_bit(cdns, CDNS_MCP_CONFIG_UPDATE,
CDNS_MCP_CONFIG_UPDATE_BIT);
if (ret < 0)
--
2.20.1
next prev parent reply other threads:[~2020-03-11 18:41 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-11 18:41 [PATCH 00/16] SoundWire: cadence: add clock stop and fix programming sequences Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 01/16] soundwire: cadence: s/update_config/config_update Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 02/16] soundwire: cadence: simplifiy cdns_init() Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 03/16] soundwire: cadence: add interface to check clock status Pierre-Louis Bossart
2020-03-13 12:06 ` Vinod Koul
2020-03-13 16:31 ` Pierre-Louis Bossart
2020-03-14 9:50 ` Vinod Koul
2020-03-11 18:41 ` Pierre-Louis Bossart [this message]
2020-03-13 12:08 ` [PATCH 04/16] soundwire: cadence: handle error cases with CONFIG_UPDATE Vinod Koul
2020-03-13 17:09 ` Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 05/16] soundwire: cadence: add clock_stop/restart routines Pierre-Louis Bossart
2020-03-13 12:21 ` Vinod Koul
2020-03-13 17:07 ` Pierre-Louis Bossart
2020-03-14 9:52 ` Vinod Koul
2020-03-11 18:41 ` [PATCH 06/16] soundwire: cadence: fix a io timeout issue in S3 test Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 07/16] soundwire: cadence: mask Slave interrupt before stopping clock Pierre-Louis Bossart
2020-03-13 12:24 ` Vinod Koul
2020-03-13 16:33 ` Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 08/16] soundwire: cadence: merge routines to clear/set bits Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 09/16] soundwire: cadence: move clock/SSP related inits to dedicated function Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 10/16] soundwire: cadence: make SSP interval programmable Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 11/16] soundwire: cadence: reorder MCP_CONFIG settings Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 12/16] soundwire: cadence: enable NORMAL operation in cdns_init() Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 13/16] soundwire: cadence: remove PREQ_DELAY assignment Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 14/16] soundwire: cadence: remove automatic command retries Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 15/16] soundwire: cadence: commit changes in the exit_reset() sequence Pierre-Louis Bossart
2020-03-11 18:41 ` [PATCH 16/16] soundwire: cadence: multi-link support Pierre-Louis Bossart
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