From b62e76cf3958ae23b5c844738990c5cf8efce8e4 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Tue, 17 Mar 2020 11:33:23 -0500 Subject: soundwire: cadence: reorder MCP_CONFIG settings Follow hardware programming flows and add placeholder comment for multi-master mode. Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20200317163329.25501-12-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul --- drivers/soundwire/cadence_master.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers/soundwire') 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); -- cgit v1.2.3