Hi Angelo,
On Thu, 2022-12-22 at 12:09 +0100, AngeloGioacchino Del Regno wrote:
> Il 22/12/22 08:21, Tinghan Shen ha scritto:
> > Add support of SOF on MediaTek MT8188 SoC.
> > MT8188 ADSP integrates with a single core Cadence HiFi-5 DSP.
> > The IPC communication between AP and DSP is based on shared DRAM and
> > mailbox interrupt.
> >
> > The change in the mt8186.h is compatible on both mt8186 and
> > mt8188. The register controls booting the DSP core with the
> > default address or the user specified address. Both mt8186
> > and mt8188 should boot with the user specified boot in the driver.
> > The usage of the register is the same on both SoC, but the
> > control bit is different on mt8186 and mt8188, which is bit 1 on mt8186
> > and bit 0 on mt8188. Configure the redundant bit has noside effect
> > on both SoCs.
> >
> > Signed-off-by: Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
> > Reviewed-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
> > Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
> > Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
> > ---
> > sound/soc/sof/mediatek/mt8186/mt8186.c | 17 +++++++++++++++++
> > sound/soc/sof/mediatek/mt8186/mt8186.h | 3 ++-
> > 2 files changed, 19 insertions(+), 1 deletion(-)
> >
> > diff --git a/sound/soc/sof/mediatek/mt8186/mt8186.c b/sound/soc/sof/mediatek/mt8186/mt8186.c
> > index 79da25725987..af0dfc2fc4cc 100644
> > --- a/sound/soc/sof/mediatek/mt8186/mt8186.c
> > +++ b/sound/soc/sof/mediatek/mt8186/mt8186.c
> > @@ -625,8 +625,25 @@ static const struct sof_dev_desc sof_of_mt8186_desc = {
> > .ops = &sof_mt8186_ops,
> > };
> >
> > +static const struct sof_dev_desc sof_of_mt8188_desc = {
> > + .ipc_supported_mask = BIT(SOF_IPC),
> > + .ipc_default = SOF_IPC,
> > + .default_fw_path = {
> > + [SOF_IPC] = "mediatek/sof",
> > + },
> > + .default_tplg_path = {
> > + [SOF_IPC] = "mediatek/sof-tplg",
> > + },
> > + .default_fw_filename = {
> > + [SOF_IPC] = "sof-mt8188.ri",
> > + },
> > + .nocodec_tplg_filename = "sof-mt8188-nocodec.tplg",
> > + .ops = &sof_mt8186_ops,
> > +};
> > +
> > static const struct of_device_id sof_of_mt8186_ids[] = {
> > { .compatible = "mediatek,mt8186-dsp", .data = &sof_of_mt8186_desc},
> > + { .compatible = "mediatek,mt8188-dsp", .data = &sof_of_mt8188_desc},
> > { }
> > };
> > MODULE_DEVICE_TABLE(of, sof_of_mt8186_ids);
> > diff --git a/sound/soc/sof/mediatek/mt8186/mt8186.h b/sound/soc/sof/mediatek/mt8186/mt8186.h
> > index 98b2965e5ba6..886d687449e3 100644
> > --- a/sound/soc/sof/mediatek/mt8186/mt8186.h
> > +++ b/sound/soc/sof/mediatek/mt8186/mt8186.h
> > @@ -52,7 +52,8 @@ struct snd_sof_dev;
> > #define ADSP_PRID 0x0
> > #define ADSP_ALTVEC_C0 0x04
> > #define ADSP_ALTVECSEL 0x0C
> > -#define ADSP_ALTVECSEL_C0 BIT(1)
> > +/* BIT(1) for mt8186. BIT(0) for mt8188 */
>
> We can be clearer here:
>
> #define MT8188_ADSP_ALTVECSEL_C0 BIT(0)
> #define MT8186_ADSP_ALTVECSEL_C0 BIT(1)
>
> /*
> * On MT8188, BIT(1) is not evaluated and on MT8186 BIT(0) is not evaluated:
> * We can simplify the driver by safely setting both bits regardless of the SoC.
> */
> #define ADSP_ALTVECSEL_C0 (MT8188_ADSP_ALTVECSEL_C0 |
> MT8186_ADSP_ALTVECSEL_C0)
>
> ...so that we don't have to check the commit history to understand what's going
> on here, and it becomes clear that ALTVECSEL is not both bits, but one of them.
>
> Cheers,
> Angelo
>
Ok, I'll udpate in the next version.
Thank you.
--
Best regards,
TingHan
