soundwire: cadence_master: add kernel parameter to override interrupt mask (04592dce) · Commits · 戴 / test

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>

drivers/soundwire/cadence_master.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -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;

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