From: CK Hu <ck.hu@mediatek.com>
To: Bibby Hsieh <bibby.hsieh@mediatek.com>
Cc: devicetree@vger.kernel.org,
Nicolas Boichat <drinkcat@chromium.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
srv_heupstream@mediatek.com,
Daoyuan Huang <daoyuan.huang@mediatek.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Jassi Brar <jassisinghbrar@gmail.com>,
linux-kernel@vger.kernel.org, Daniel Kurtz <djkurtz@chromium.org>,
Dennis-YC Hsieh <dennis-yc.hsieh@mediatek.com>,
YT Shen <yt.shen@mediatek.com>, Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org,
Houlong Wei <houlong.wei@mediatek.com>,
Sascha Hauer <kernel@pengutronix.de>,
Matthias Brugger <matthias.bgg@gmail.com>,
Jiaguang Zhang <jiaguang.zhang@mediatek.com>,
linux-arm-kernel@lists.infradead.org, ginny.chen@mediatek.com
Subject: Re: [PATCH v12 11/12] soc: mediatek: cmdq: add cmdq_dev_get_client_reg function
Date: Mon, 19 Aug 2019 11:13:20 +0800 [thread overview]
Message-ID: <1566184400.6182.0.camel@mtksdaap41> (raw)
In-Reply-To: <20190819025359.11381-12-bibby.hsieh@mediatek.com>
Hi, Bibby:
On Mon, 2019-08-19 at 10:53 +0800, Bibby Hsieh wrote:
> GCE cannot know the register base address, this function
> can help cmdq client to get the cmdq_client_reg structure.
Reviewed-by: CK Hu <ck.hu@mediatek.com>
>
> Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
> ---
> drivers/soc/mediatek/mtk-cmdq-helper.c | 29 ++++++++++++++++++++++++++
> include/linux/soc/mediatek/mtk-cmdq.h | 21 +++++++++++++++++++
> 2 files changed, 50 insertions(+)
>
> diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> index 340a92a254e5..1bed07362b7a 100644
> --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> @@ -27,6 +27,35 @@ struct cmdq_instruction {
> u8 op;
> };
>
> +int cmdq_dev_get_client_reg(struct device *dev,
> + struct cmdq_client_reg *client_reg, int idx)
> +{
> + struct of_phandle_args spec;
> + int err;
> +
> + if (!client_reg)
> + return -ENOENT;
> +
> + err = of_parse_phandle_with_fixed_args(dev->of_node,
> + "mediatek,gce-client-reg",
> + 3, idx, &spec);
> + if (err < 0) {
> + dev_err(dev,
> + "error %d can't parse gce-client-reg property (%d)",
> + err, idx);
> +
> + return err;
> + }
> +
> + client_reg->subsys = (u8)spec.args[0];
> + client_reg->offset = (u16)spec.args[1];
> + client_reg->size = (u16)spec.args[2];
> + of_node_put(spec.np);
> +
> + return 0;
> +}
> +EXPORT_SYMBOL(cmdq_dev_get_client_reg);
> +
> static void cmdq_client_timeout(struct timer_list *t)
> {
> struct cmdq_client *client = from_timer(client, t, timer);
> diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
> index a345870a6d10..6215d4fc4ba3 100644
> --- a/include/linux/soc/mediatek/mtk-cmdq.h
> +++ b/include/linux/soc/mediatek/mtk-cmdq.h
> @@ -15,6 +15,12 @@
>
> struct cmdq_pkt;
>
> +struct cmdq_client_reg {
> + u8 subsys;
> + u16 offset;
> + u16 size;
> +};
> +
> struct cmdq_client {
> spinlock_t lock;
> u32 pkt_cnt;
> @@ -24,6 +30,21 @@ struct cmdq_client {
> u32 timeout_ms; /* in unit of microsecond */
> };
>
> +/**
> + * cmdq_dev_get_client_reg() - parse cmdq client reg from the device
> + * node of CMDQ client
> + * @dev: device of CMDQ mailbox clienti
> + * @client_reg: CMDQ client reg pointer
> + * @idx: the index of desired reg
> + *
> + * Return: 0 for success; else the error code is returned
> + *
> + * Help CMDQ client pasing the cmdq client reg
> + * from the device node of CMDQ client.
> + */
> +int cmdq_dev_get_client_reg(struct device *dev,
> + struct cmdq_client_reg *client_reg, int idx);
> +
> /**
> * cmdq_mbox_create() - create CMDQ mailbox client and channel
> * @dev: device of CMDQ mailbox client
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next prev parent reply other threads:[~2019-08-19 3:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-19 2:53 [PATCH v12 00/12] support gce on mt8183 platform Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 01/12] dt-binding: gce: remove thread-num property Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 02/12] dt-binding: gce: add gce header file for mt8183 Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 03/12] dt-binding: gce: add binding for gce client reg property Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 04/12] mailbox: mediatek: cmdq: move the CMDQ_IRQ_MASK into cmdq driver data Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 05/12] mailbox: mediatek: cmdq: support mt8183 gce function Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 06/12] soc: mediatek: cmdq: clear the event in cmdq initial flow Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 07/12] soc: mediatek: cmdq: reorder the parameter Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 08/12] soc: mediatek: cmdq: change the type of input parameter Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 09/12] soc: mediatek: cmdq: define the instruction struct Bibby Hsieh
2019-08-19 17:00 ` houlong wei
2019-08-19 2:53 ` [PATCH v12 10/12] soc: mediatek: cmdq: add polling function Bibby Hsieh
2019-08-19 2:53 ` [PATCH v12 11/12] soc: mediatek: cmdq: add cmdq_dev_get_client_reg function Bibby Hsieh
2019-08-19 3:13 ` CK Hu [this message]
2019-08-19 17:24 ` houlong wei
2019-08-19 2:53 ` [PATCH v12 12/12] arm64: dts: add gce node for mt8183 Bibby Hsieh
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