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authorJie Yang <yang.jie@intel.com>2014-07-14 13:11:12 +0400
committerMark Brown <broonie@linaro.org>2014-07-14 22:12:09 +0400
commit85e63007bbef7abc7145c807ed59d01738e09d39 (patch)
treed2ce8df4604a5b0e61f9a9bb35894ebc6401be0e /sound
parent548793232fd29cfa1553bb45247aa5963632405c (diff)
downloadlinux-85e63007bbef7abc7145c807ed59d01738e09d39.tar.xz
ASoC: Intel: Start with all memory banks disabled
All required banks are enabled during boot procedure. Signed-off-by: Jie Yang <yang.jie@intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/intel/sst-haswell-dsp.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sound/soc/intel/sst-haswell-dsp.c b/sound/soc/intel/sst-haswell-dsp.c
index 40bb0205d5c0..977e29779d11 100644
--- a/sound/soc/intel/sst-haswell-dsp.c
+++ b/sound/soc/intel/sst-haswell-dsp.c
@@ -505,8 +505,9 @@ static int hsw_init(struct sst_dsp *sst, struct sst_pdata *pdata)
}
}
- /* set default power gating mask */
- writel(0x0, sst->addr.pci_cfg + SST_VDRTCTL0);
+ /* set default power gating control, enable power gating control for all blocks. that is,
+ can't be accessed, please enable each block before accessing. */
+ writel(0xffffffff, sst->addr.pci_cfg + SST_VDRTCTL0);
return 0;
}