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soundwire: intel_ace2x: set the clock source

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

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard 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: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2024-03-26 09:20:30 +00:00 committed by Vinod Koul
parent a206d2e340
commit 5b3f661b24
1 changed files with 16 additions and 0 deletions
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16
drivers/soundwire/intel_ace2x.c
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@ -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");