Commit de763fa8 authored Sep 01, 2020 by Pierre-Louis Bossart Committed by Vinod Koul Sep 03, 2020

soundwire: intel: pass link_mask information to each master

While the hardware exposes independent bits to power-up each master,
the recommended sequence is to power all links or none. Idle links can
still use the clock stop mode while the master is powered.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200901150556.19432-10-yung-chuan.liao@linux.intel.com

Signed-off-by: Vinod Koul <vkoul@kernel.org>

parent f748f34e

drivers/soundwire/intel.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@
		* @shim_lock: mutex to handle access to shared SHIM registers
		* @shim_mask: global pointer to check SHIM register initialization
		* @clock_stop_quirks: mask defining requested behavior on pm_suspend
		* @link_mask: global mask needed for power-up/down sequences
		* @cdns: Cadence master descriptor
		* @list: used to walk-through all masters exposed by the same controller
		*/
		@@ -33,6 +34,7 @@ struct sdw_intel_link_res {
		struct mutex shim_lock; / protect shared registers */
		u32 *shim_mask;
		u32 clock_stop_quirks;
		u32 link_mask;
		struct sdw_cdns *cdns;
		struct list_head list;
		};

drivers/soundwire/intel_init.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -255,6 +255,7 @@ static struct sdw_intel_ctx
		link->clock_stop_quirks = res->clock_stop_quirks;
		link->shim_lock = &ctx->shim_lock;
		link->shim_mask = &ctx->shim_mask;
		link->link_mask = link_mask;

		memset(&pdevinfo, 0, sizeof(pdevinfo));