Commit 5b3f661b authored by Pierre-Louis Bossart's avatar Pierre-Louis Bossart Committed by Vinod Koul
Browse files

soundwire: intel_ace2x: set the clock source 



Insert clock setup after power-up and before setting up the SYNCPRD,
per hardware recommendations.

Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: default avatarRander Wang <rander.wang@intel.com>
Signed-off-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20240326092030.1062802-8-yung-chuan.liao@linux.intel.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent a206d2e3

drivers/soundwire/intel_ace2x.c

+16 −0
Original line number Diff line number Diff line
@@ -33,6 +33,20 @@ static void intel_shim_vs_init(struct sdw_intel *sdw) 
	usleep_range(10, 15);

}



static void intel_shim_vs_set_clock_source(struct sdw_intel *sdw, u32 source)

{

	void __iomem *shim_vs = sdw->link_res->shim_vs;

	u32 val;



	val = intel_readl(shim_vs, SDW_SHIM2_INTEL_VS_LVSCTL);



	u32p_replace_bits(&val, source, SDW_SHIM2_INTEL_VS_LVSCTL_MLCS);



	intel_writel(shim_vs, SDW_SHIM2_INTEL_VS_LVSCTL, val);



	dev_dbg(sdw->cdns.dev, "clock source %d LVSCTL %#x\n", source, val);

}



static int intel_shim_check_wake(struct sdw_intel *sdw)

{

	void __iomem *shim_vs;
@@ -100,6 +114,8 @@ static int intel_link_power_up(struct sdw_intel *sdw) 
		goto out;

	}



	intel_shim_vs_set_clock_source(sdw, clock_source);



	if (!*shim_mask) {

		/* we first need to program the SyncPRD/CPU registers */

		dev_dbg(sdw->cdns.dev, "first link up, programming SYNCPRD\n");