ASOC: SOF: mediatek: Add ipc support for mt8195 by kuanhsuncheng · Pull Request #3258 · thesofproject/linux

kuanhsuncheng · 2021-11-04T02:07:11Z

This patch adds IPC support for mt8195 using mbox.

On mt8195 resource, there are two mboxes are used to handle
ipc request and reply.
We create a mtk-adsp-ipc client device to request mbox
controllers.

Signed-off-by: Allen-KH Cheng Allen-KH.Cheng@mediatek.com

Note: there are three patches delivered upstream
https://lore.kernel.org/linux-arm-kernel/20211028132655.8136-1-allen-kh.cheng@mediatek.com/t/

plbossart

I don't fully follow what you are trying to do with a platform device here...

plbossart · 2021-11-04T19:21:13Z


+	priv->ipc_dev = platform_device_register_data(&pdev->dev, "mtk-adsp-ipc",
+ PLATFORM_DEVID_NONE,
+ pdev, sizeof(*pdev));


where is the platform_device_unregister() done?

Sorry, I miss this part, will fix this. thanks.

plbossart · 2021-11-04T19:22:31Z

+ goto err_adsp_sram_power_off;
+	}
+
+	adsp_ipc_set_data(priv->dsp_ipc, priv);


i am not sure I get what you are trying to do here, but the drvdata is typically private stuff handled in the scope of a device. Here you are using it at the parent level. is this intentional and by-design?

YES, this is intentional and by-design. private data is used in mtk adsp IPC IRQ callback func.

imx design uses a separate driver for IPC communication using the mailbox framework (see drivers/mailbox/imx-mailbox.c and drivers/firmware/imx/imx-dsp.c).
We create a child platform device that will be handled by imx-dsp.c mailbox driver. with ipc_set_data call we pass some information from parent to the child.
I'm not sure if MTK has the mailbox driver though because I havent seen one.
Later edit: Oh, now I have seen the link for the mailbox driver in @kuanhsuncheng comment.
@kuanhsuncheng Please Cc me for this kind of patches or at least sound open firmware mailing list. sound-open-firmware@alsa-project.org

yes,
There are three patches are waiting for reviewer reply.
mailbox controller driver
https://patchwork.kernel.org/project/linux-mediatek/patch/20211028132756.8251-1-allen-kh.cheng@mediatek.com/
adsp ipc protocol driver (mailbox client interface)
https://patchwork.kernel.org/project/linux-mediatek/patch/20211028132822.8306-1-allen-kh.cheng@mediatek.com/
This PR should wait upstream finished.

@kuanhsuncheng please mark this PR as draft so that it doesnt get accidentally merged. https://github.blog/changelog/2020-04-08-convert-pull-request-to-draft/

I resend patches again.
(https://lore.kernel.org/linux-arm-kernel/20211117131222.30541-4-allen-kh.cheng@mediatek.com/T/)
Also cc sound-open-firmware@alsa-project.org
Thanks.

kuanhsuncheng

I update the platform_device_unregister part.

For this patch, I refer to imx design.

Note:
Wait upstream done. this patch should not cause compile error
https://lore.kernel.org/linux-arm-kernel/20211028132655.8136-1-allen-kh.cheng@mediatek.com/t/

kuanhsuncheng · 2021-11-05T02:12:50Z


+	priv->ipc_dev = platform_device_register_data(&pdev->dev, "mtk-adsp-ipc",
+ PLATFORM_DEVID_NONE,
+ pdev, sizeof(*pdev));


Sorry, I miss this part, will fix this. thanks.

kuanhsuncheng · 2021-11-05T02:20:46Z

+ goto err_adsp_sram_power_off;
+	}
+
+	adsp_ipc_set_data(priv->dsp_ipc, priv);


YES, this is intentional and by-design. private data is used in mtk adsp IPC IRQ callback func.

cujomalainey · 2021-11-17T19:10:44Z

Did the patch stall getting sent upstream?

kuanhsuncheng · 2021-11-18T01:13:29Z

Did the patch stall getting sent upstream?

I resend the related patches again.

(https://lore.kernel.org/linux-arm-kernel/20211117131222.30541-4-allen-kh.cheng@mediatek.com/T/)

I think this PR should wait upstream finished.

lyakh

feel free to discard my comment after you've addressed it if I'm still on vacation at the time

kuanhsuncheng · 2021-12-10T11:58:40Z

Hi sirs,

The below is the upstream list for other related patches.

https://patchwork.kernel.org/project/linux-mediatek/list/?series=593601

I had upstreamed for a while.

Could someone help me review those patches ?

I would appreciate your help. Many thanks.

plbossart · 2021-12-10T14:57:45Z

Could someone help me review those patches ?

@kuanhsuncheng it's a bit confusing since this PR is still a 'draft'. It's not clear if reviewers should spent time on this if you don't update the status?

kuanhsuncheng · 2021-12-13T01:20:08Z

Could someone help me review those patches ?
@kuanhsuncheng it's a bit confusing since this PR is still a 'draft'. It's not clear if reviewers should spent time on this if you don't update the status?

Hi @plbossart ,

This PR is still a draft because I am waiting the below patch list upstream done.

https://patchwork.kernel.org/project/linux-mediatek/list/?series=593601

I wonder maybe there is a way can speed up.

kuanhsuncheng · 2022-01-06T08:34:23Z

@lgirdwood , @dbaluta @plbossart

Hi sirs,

I wonder is that ok I take a another PR for below series.

https://patchwork.kernel.org/project/linux-mediatek/list/?series=605114
https://patchwork.kernel.org/project/linux-mediatek/list/?series=605115

and merge this current PR to sof-dev ?

There are other patches for MT8195 needed to merge also.

However, they have a ipc API dependency and cannot directly merge.

I think maintainer may not have time to rely me. (Upstream series=589151)

please kindly give me advice, thanks.

This patch adds IPC support for mt8195 using mbox. On mt8195 resource, there are two mboxes are used to handle ipc request and reply. We create a mtk-adsp-ipc client device to request mbox controllers. Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>

plbossart · 2022-05-03T22:12:02Z

@kuanhsuncheng is this PR still relevant or can it be closed?

kuanhsuncheng · 2022-05-18T01:55:36Z

Hi sirs,

We can close this PR.

Mark has applied to https://urldefense.com/v3/__https:/git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git__;!!CTRNKA9wMg0ARbw!wU0fgArK_q_tKNK7UqFxsnd2931eAre0YciHrlAxzzQaER8C2tTATfYaiNuALVi85laWXg$ for-next

[2/3] ASoC: SOF: mediatek: Add ipc support for mt8195
commit: aea9350

Thanks,

This patch adds IPC support for mt8195 using mbox. On mt8195 resource, there are two mboxes are used to handle ipc request and reply. We create a mtk-adsp-ipc client device to request mbox controllers. Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com> (cherry picked from commit e2a85136b16761f18c181c0483f3d81fe97d7acf https://github.com/kuanhsuncheng/linux.git 8195_dev) PR: thesofproject/linux#3258 BUG=b:189238342 TEST=emerge-cherry sys-kernel/chromeos-kernel-5_10 Signed-off-by: Allen-kh Cheng <allen-kh.cheng@mediatek.corp-partner.google.com> Change-Id: Ie51ff4272eb65940583d1383eea30a036dff50a9 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/3271540 Reviewed-by: Li-Yu Yu <aaronyu@google.com> Commit-Queue: Li-Yu Yu <aaronyu@google.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/3592206 Reviewed-by: YC Hung <yc.hung@mediatek.corp-partner.google.com> Tested-by: Justin Yeh <justin.yeh@mediatek.corp-partner.google.com>

kuanhsuncheng requested review from bardliao, dbaluta, kv2019i, lgirdwood, plbossart and ranj063 as code owners November 4, 2021 02:07

kuanhsuncheng force-pushed the 8195_dev branch from 435f068 to 331a22dCompare November 4, 2021 02:11

kuanhsuncheng requested a review from yaochunhung November 4, 2021 02:12

plbossart reviewed Nov 4, 2021
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kuanhsuncheng force-pushed the 8195_dev branch from 331a22d to e2a8513Compare November 5, 2021 02:07

kuanhsuncheng commented Nov 5, 2021
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kuanhsuncheng marked this pull request as draft November 5, 2021 08:06

lyakh requested changes Nov 26, 2021
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Comment threadsound/soc/sof/mediatek/mt8195/mt8195.c Outdated

kuanhsuncheng force-pushed the 8195_dev branch from e2a8513 to 551beedCompare December 10, 2021 11:52

kuanhsuncheng force-pushed the 8195_dev branch from 551beed to b90d3fcCompare December 16, 2021 05:20

yaochunhung mentioned this pull request Jan 11, 2022
ASoC: SOF: ipc: introduce cont_update_posn in sof_ipc_stream_params s… #3353
Merged

kuanhsuncheng force-pushed the 8195_dev branch from b90d3fc to 774869bCompare January 13, 2022 12:50

kuanhsuncheng closed this May 18, 2022

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