From: houlong wei <houlong.wei@mediatek.com>
To: Bibby Hsieh <bibby.hsieh@mediatek.com>
Cc: "Jassi Brar" <jassisinghbrar@gmail.com>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
"Rob Herring" <robh+dt@kernel.org>,
"CK Hu (胡俊光)" <ck.hu@mediatek.com>,
"Daniel Kurtz" <djkurtz@chromium.org>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"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>,
srv_heupstream <srv_heupstream@mediatek.com>,
"Sascha Hauer" <kernel@pengutronix.de>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"Nicolas Boichat" <drinkcat@chromium.org>,
"YT Shen (沈岳霆)" <Yt.Shen@mediatek.com>,
"Daoyuan Huang (黃道原)" <Daoyuan.Huang@mediatek.com>,
"Jiaguang Zhang (张加广)" <Jiaguang.Zhang@mediatek.com>,
"Dennis-YC Hsieh (謝宇哲)" <Dennis-YC.Hsieh@mediatek.com>,
"Ginny Chen (陳治傑)" <ginny.chen@mediatek.com>,
houlong.wei@mediatek.com
Subject: Re: [RESEND, PATCH v13 11/12] soc: mediatek: cmdq: add cmdq_dev_get_client_reg function
Date: Tue, 20 Aug 2019 17:47:13 +0800 [thread overview]
Message-ID: <1566294433.24117.19.camel@mhfsdcap03> (raw)
In-Reply-To: <20190820084932.22282-12-bibby.hsieh@mediatek.com>
On Tue, 2019-08-20 at 16:49 +0800, Bibby Hsieh wrote:
> GCE cannot know the register base address, this function
> can help cmdq client to get the cmdq_client_reg structure.
>
> Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
> Reviewed-by: CK Hu <ck.hu@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 c53f8476c68d..80f75a1075b4 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..02ddd60b212f 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 client
> + * @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 parsing 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
Reviewed-by: Houlong Wei <houlong.wei@mediatek.com>
next prev parent reply other threads:[~2019-08-20 9:47 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-20 8:49 [RESEND, PATCH v13 00/12] support gce on mt8183 platform Bibby Hsieh
2019-08-20 8:49 ` [RESEND, PATCH v13 01/12] dt-binding: gce: remove thread-num property Bibby Hsieh
2019-08-20 8:49 ` [RESEND, PATCH v13 02/12] dt-binding: gce: add gce header file for mt8183 Bibby Hsieh
2019-08-20 8:49 ` [RESEND, PATCH v13 03/12] dt-binding: gce: add binding for gce client reg property Bibby Hsieh
2019-08-20 8:49 ` [RESEND, PATCH v13 04/12] mailbox: mediatek: cmdq: move the CMDQ_IRQ_MASK into cmdq driver data Bibby Hsieh
2019-08-23 11:32 ` Matthias Brugger
2019-08-20 8:49 ` [RESEND, PATCH v13 05/12] mailbox: mediatek: cmdq: support mt8183 gce function Bibby Hsieh
2019-08-20 8:49 ` [RESEND, PATCH v13 06/12] soc: mediatek: cmdq: clear the event in cmdq initial flow Bibby Hsieh
2019-08-23 11:36 ` Matthias Brugger
2019-08-23 11:43 ` Matthias Brugger
2019-08-20 8:49 ` [RESEND, PATCH v13 07/12] soc: mediatek: cmdq: reorder the parameter Bibby Hsieh
2019-08-23 12:05 ` Matthias Brugger
2019-08-20 8:49 ` [RESEND, PATCH v13 08/12] soc: mediatek: cmdq: change the type of input parameter Bibby Hsieh
2019-08-23 12:09 ` Matthias Brugger
2019-08-20 8:49 ` [RESEND, PATCH v13 09/12] soc: mediatek: cmdq: define the instruction struct Bibby Hsieh
2019-08-20 9:39 ` houlong wei
2019-08-23 13:50 ` Matthias Brugger
2019-08-27 4:12 ` Bibby Hsieh
2019-08-27 10:04 ` Matthias Brugger
2019-08-20 8:49 ` [RESEND, PATCH v13 10/12] soc: mediatek: cmdq: add polling function Bibby Hsieh
2019-08-20 9:50 ` houlong wei
2019-08-23 14:05 ` Matthias Brugger
2019-08-27 4:07 ` Bibby Hsieh
2019-08-20 8:49 ` [RESEND, PATCH v13 11/12] soc: mediatek: cmdq: add cmdq_dev_get_client_reg function Bibby Hsieh
2019-08-20 9:40 ` houlong wei
2019-08-20 9:47 ` houlong wei [this message]
2019-08-23 14:21 ` Matthias Brugger
2019-08-27 3:59 ` Bibby Hsieh
2019-08-27 10:13 ` Matthias Brugger
2019-08-28 8:32 ` Bibby Hsieh
2019-08-20 8:49 ` [RESEND, PATCH v13 12/12] arm64: dts: add gce node for mt8183 Bibby Hsieh
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