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soc/intel/cannonlake: Allow Audio DSP OSC qualification for low power idle

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With Audio DSP OSC qualification disabled from S0ix criteria.
S0ix is achieved before the DSP is suspended. When driver tries
to suspend DSP its already turned off.

BUG=b:139481313

Change-Id: I20b793b95483af03ce4ae068ac07864a9e90d39b
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37604
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Aamir Bohra
2019-12-09 16:05:52 +05:30
committed by Patrick Georgi
parent d8663e0fc6
commit 4d9d3f164d
3 changed files with 16 additions and 1 deletions
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9
src/soc/intel/cannonlake/finalize.c
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@ -91,11 +91,18 @@ static void pch_finalize(void)
write8(pmcbase + PCH_PWRM_ACPI_TMR_CTL, reg8);
}
/* Disable XTAL shutdown qualification for low power idle. */
if (config->s0ix_enable) {
/* Disable XTAL shutdown qualification for low power idle. */
reg32 = read32(pmcbase + CPPMVRIC);
reg32 |= XTALSDQDIS;
write32(pmcbase + CPPMVRIC, reg32);
if (config->cppmvric2_adsposcdis) {
/* Enable Audio DSP OSC qualification for S0ix */
reg32 = read32(pmcbase + CPPMVRIC2);
reg32 &= ~ADSPOSCDIS;
write32(pmcbase + CPPMVRIC2, reg32);
}
}
pch_handle_sideband(config);