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authorMarcin Rajwa <marcin.rajwa@linux.intel.com>2020-05-15 16:59:53 +0300
committerMark Brown <broonie@kernel.org>2020-05-18 13:24:55 +0100
commit9f369f7e4660d05b5318aa413db199a70dfb2c4f (patch)
treec7e6b8eb35f26140aaa3aa7624e918dc875d4e19 /sound/soc/sof/topology.c
parent3541aef1b83fa3a13e9c4ecc0919156ff2ec9c22 (diff)
downloadlinux-9f369f7e4660d05b5318aa413db199a70dfb2c4f.tar.bz2
ASoC: SOF: inform DSP that driver is going to be removed
This patch invokes the DSP power down notifier to inform DSP that driver is going to be removed. The module removal entails DSP power down, disabling of IRQs and more. Therefore it is highly recommended to inform the DSP about this upcoming event. Due to hardware limitations on some Intel platforms it is necessary to power gate all LPSRAM banks that were enabled prior to controller reset. Otherwise, an attempt to write LPSRAM control registers may have no effect. Signed-off-by: Marcin Rajwa <marcin.rajwa@linux.intel.com> Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://lore.kernel.org/r/20200515135958.17511-4-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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