From: "CK Hu (胡俊光)" <ck.hu@mediatek.com>
To: "Yongqiang Niu (牛永强)" <yongqiang.niu@mediatek.com>,
"chunkuang.hu@kernel.org" <chunkuang.hu@kernel.org>
Cc: "jassisinghbrar@gmail.com" <jassisinghbrar@gmail.com>,
"matthias.bgg@gmail.com" <matthias.bgg@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-mediatek@lists.infradead.org"
<linux-mediatek@lists.infradead.org>,
Project_Global_Chrome_Upstream_Group
<Project_Global_Chrome_Upstream_Group@mediatek.com>,
"hsinyi@chromium.org" <hsinyi@chromium.org>
Subject: Re: [PATCH v8, 3/4] mailbox: mtk-cmdq: add gce ddr enable support flow
Date: Mon, 3 Oct 2022 05:04:39 +0000 [thread overview]
Message-ID: <31b60ef83260b7f3d0761462c127d3fb34d4f8ac.camel@mediatek.com> (raw)
In-Reply-To: <20220930160638.7588-4-yongqiang.niu@mediatek.com>
Hi, Yongqiang:
On Sat, 2022-10-01 at 00:06 +0800, Yongqiang Niu wrote:
> add gce ddr enable control flow when gce suspend/resume
>
> Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> ---
> drivers/mailbox/mtk-cmdq-mailbox.c | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)
>
> diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c
> b/drivers/mailbox/mtk-cmdq-mailbox.c
> index 04eb44d89119..2db82ff838ed 100644
> --- a/drivers/mailbox/mtk-cmdq-mailbox.c
> +++ b/drivers/mailbox/mtk-cmdq-mailbox.c
> @@ -94,6 +94,18 @@ struct gce_plat {
> u32 gce_num;
> };
>
> +static void cmdq_sw_ddr_enable(struct cmdq *cmdq, bool enable)
> +{
> + WARN_ON(clk_bulk_enable(cmdq->gce_num, cmdq->clocks));
> +
> + if (enable)
> + writel(GCE_DDR_EN | GCE_CTRL_BY_SW, cmdq->base +
> GCE_GCTL_VALUE);
> + else
> + writel(GCE_CTRL_BY_SW, cmdq->base + GCE_GCTL_VALUE);
> +
> + clk_bulk_disable(cmdq->gce_num, cmdq->clocks);
> +}
> +
> u8 cmdq_get_shift_pa(struct mbox_chan *chan)
> {
> struct cmdq *cmdq = container_of(chan->mbox, struct cmdq,
> mbox);
> @@ -319,6 +331,9 @@ static int cmdq_suspend(struct device *dev)
> if (task_running)
> dev_warn(dev, "exist running task(s) in suspend\n");
>
> + if (cmdq->sw_ddr_en)
> + cmdq_sw_ddr_enable(cmdq, false);
Why do you disable sw ddr function when suspend? Would the problem
happen when you disable sw ddr function.
Regards,
CK
> +
> clk_bulk_unprepare(cmdq->gce_num, cmdq->clocks);
>
> return 0;
> @@ -330,6 +345,10 @@ static int cmdq_resume(struct device *dev)
>
> WARN_ON(clk_bulk_prepare(cmdq->gce_num, cmdq->clocks));
> cmdq->suspended = false;
> +
> + if (cmdq->sw_ddr_en)
> + cmdq_sw_ddr_enable(cmdq, true);
> +
> return 0;
> }
>
> @@ -337,6 +356,9 @@ static int cmdq_remove(struct platform_device
> *pdev)
> {
> struct cmdq *cmdq = platform_get_drvdata(pdev);
>
> + if (cmdq->sw_ddr_en)
> + cmdq_sw_ddr_enable(cmdq, false);
> +
> clk_bulk_unprepare(cmdq->gce_num, cmdq->clocks);
> return 0;
> }
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-10-03 5:47 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-30 16:06 [PATCH v8, 0/4] mailbox: mtk-cmdq: add MT8186 support Yongqiang Niu
2022-09-30 16:06 ` [PATCH v8, 1/4] mailbox: mtk-cmdq: add gce software ddr enable private data Yongqiang Niu
2022-10-03 4:00 ` CK Hu (胡俊光)
2022-10-04 9:35 ` yongqiang.niu
2022-10-04 10:08 ` CK Hu (胡俊光)
2022-09-30 16:06 ` [PATCH v8, 2/4] mailbox: mtk-cmdq: instead magic number with GCE_CTRL_BY_SW Yongqiang Niu
2022-10-03 3:56 ` CK Hu (胡俊光)
2022-10-03 14:49 ` AngeloGioacchino Del Regno
2022-10-04 9:20 ` yongqiang.niu
2022-09-30 16:06 ` [PATCH v8, 3/4] mailbox: mtk-cmdq: add gce ddr enable support flow Yongqiang Niu
2022-10-03 5:04 ` CK Hu (胡俊光) [this message]
2022-10-04 9:30 ` yongqiang.niu
2022-10-04 9:40 ` CK Hu (胡俊光)
2022-10-03 14:54 ` AngeloGioacchino Del Regno
2022-10-04 9:39 ` yongqiang.niu
2022-10-04 9:55 ` AngeloGioacchino Del Regno
2022-09-30 16:06 ` [PATCH v8, 4/4] mailbox: mtk-cmdq: add MT8186 support Yongqiang Niu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=31b60ef83260b7f3d0761462c127d3fb34d4f8ac.camel@mediatek.com \
--to=ck.hu@mediatek.com \
--cc=Project_Global_Chrome_Upstream_Group@mediatek.com \
--cc=chunkuang.hu@kernel.org \
--cc=hsinyi@chromium.org \
--cc=jassisinghbrar@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=matthias.bgg@gmail.com \
--cc=yongqiang.niu@mediatek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).