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[v2,11/17] soundwire: cadence: reorder MCP_CONFIG settings

Message ID 20200317163329.25501-12-pierre-louis.bossart@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series SoundWire: cadence: add clock stop and fix programming sequences | expand

Commit Message

Pierre-Louis Bossart March 17, 2020, 4:33 p.m. UTC 
Follow hardware programming flows and add placeholder comment for
multi-master mode.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 drivers/soundwire/cadence_master.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index 773341568d7e..9afce1f32076 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -1097,20 +1097,22 @@  int sdw_cdns_init(struct sdw_cdns *cdns)
 	/* Configure mcp config */
 	val = cdns_readl(cdns, CDNS_MCP_CONFIG);
 
-	/* Set Max cmd retry to 15 */
-	val |= CDNS_MCP_CONFIG_MCMD_RETRY;
+	/* Set cmd mode for Tx and Rx cmds */
+	val &= ~CDNS_MCP_CONFIG_CMD;
 
-	/* Set frame delay between PREQ and ping frame to 15 frames */
-	val |= 0xF << SDW_REG_SHIFT(CDNS_MCP_CONFIG_MPREQ_DELAY);
+	/* Disable sniffer mode */
+	val &= ~CDNS_MCP_CONFIG_SNIFFER;
 
 	/* Disable auto bus release */
 	val &= ~CDNS_MCP_CONFIG_BUS_REL;
 
-	/* Disable sniffer mode */
-	val &= ~CDNS_MCP_CONFIG_SNIFFER;
+	/* Multi-master support to be added here */
 
-	/* Set cmd mode for Tx and Rx cmds */
-	val &= ~CDNS_MCP_CONFIG_CMD;
+	/* Set frame delay between PREQ and ping frame to 15 frames */
+	val |= 0xF << SDW_REG_SHIFT(CDNS_MCP_CONFIG_MPREQ_DELAY);
+
+	/* Set Max cmd retry to 15 */
+	val |= CDNS_MCP_CONFIG_MCMD_RETRY;
 
 	cdns_writel(cdns, CDNS_MCP_CONFIG, val);