We need at least 3 clocks in order to power up and access
DSP core registers found on i.MX8QM, i.MX8QXP and i.MX8MP
platforms.
Add code to request these clocks and enable them at probe. Next
patches will add PM support which will only activate clocks when
DSP is used.
DSP clocks are already documented in
Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
We choose to add:
* imx8_parse_clocks
* imx8_enable_clocks
* imx8_disable_clocks
wrappers because in the future DSP will need to take care about the
clocks of other related Audio IPs (e.g SAI, ESAI).
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20211119094319.81674-2-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds debug support for imx platforms. This is important in
order to gather information about the state of the DSP in case of an
oops and the reason for the oops.
This is done by checking if a message with a panic code has been placed
in the debug box, in the imx8_dsp_handle_request function from sof/imx.
If positive, the function imx8_dump, added in common, will be called.
The first step is to gather information about the registers, filename,
line number and stack by calling the imx8_get_registers, added in common.
Then the information will be printed to the console by calling the
get_status function.
Signed-off-by: Iulian Olaru <iulianolaru249@yahoo.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200917105633.2579047-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Daniel Baluta