diff options
| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2019-08-06 03:55:21 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-08-21 12:06:18 +0300 |
| commit | 04592dced55a3c55eb29bd49f4fcd3e1b2ce96d6 (patch) | |
| tree | 12e7be1048ffdb2af963f590d59a7db835f7b8d3 /drivers/soundwire | |
| parent | 50302fc7b936c1b00e39d4a4f118fb43d3f5ef2c (diff) | |
| download | linux-04592dced55a3c55eb29bd49f4fcd3e1b2ce96d6.tar.xz | |
soundwire: cadence_master: add kernel parameter to override interrupt mask
The code has a set of defaults which may not be relevant in all cases,
add kernel parameter as a helper - mostly for early board bring-up.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190806005522.22642-17-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
| -rw-r--r-- | drivers/soundwire/cadence_master.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c index 92d1387c6d2b..65f27fcd4f14 100644 --- a/drivers/soundwire/cadence_master.c +++ b/drivers/soundwire/cadence_master.c @@ -19,6 +19,10 @@ #include "bus.h" #include "cadence_master.h" +static int interrupt_mask; +module_param_named(cnds_mcp_int_mask, interrupt_mask, int, 0444); +MODULE_PARM_DESC(cdns_mcp_int_mask, "Cadence MCP IntMask"); + #define CDNS_MCP_CONFIG 0x0 #define CDNS_MCP_CONFIG_MCMD_RETRY GENMASK(27, 24) @@ -668,6 +672,9 @@ static int _cdns_enable_interrupt(struct sdw_cdns *cdns) */ mask |= CDNS_MCP_INT_IRQ; + if (interrupt_mask) /* parameter override */ + mask = interrupt_mask; + cdns_writel(cdns, CDNS_MCP_INTMASK, mask); return 0; |