From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Yu Chen <chenyu56@huawei.com>
Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, suzhuangluan@hisilicon.com,
kongfei@hisilicon.com,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Lucas Tsai <lucas_tsai@richtek.com>,
shufan_lee <shufan_lee@richtek.com>,
John Stultz <john.stultz@linaro.org>,
Binghui Wang <wangbinghui@hisilicon.com>
Subject: Re: [PATCH 08/10] usb: typec: Add support for usb role switch in rt1711h driver
Date: Mon, 29 Oct 2018 13:58:13 +0200 [thread overview]
Message-ID: <20181029115813.GA14534@kuha.fi.intel.com> (raw)
In-Reply-To: <20181027095820.40056-9-chenyu56@huawei.com>
On Sat, Oct 27, 2018 at 05:58:18PM +0800, Yu Chen wrote:
> This patch add struct device_connection to rt1711h driver to support
> find "usb-role-switch" in tcpm_register_port.
>
> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Lucas Tsai <lucas_tsai@richtek.com>
> Cc: shufan_lee <shufan_lee@richtek.com>
> Cc: John Stultz <john.stultz@linaro.org>
> Cc: Binghui Wang <wangbinghui@hisilicon.com>
> Signed-off-by: Yu Chen <chenyu56@huawei.com>
> ---
> drivers/usb/typec/tcpm/tcpci_rt1711h.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> index 017389021b96..5f8b952612fe 100644
> --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> @@ -39,6 +39,7 @@ struct rt1711h_chip {
> struct tcpci_data data;
> struct tcpci *tcpci;
> struct device *dev;
> + struct device_connection dev_conn;
> };
>
> static int rt1711h_read16(struct rt1711h_chip *chip, unsigned int reg, u16 *val)
> @@ -237,6 +238,7 @@ static int rt1711h_probe(struct i2c_client *client,
> {
> int ret;
> struct rt1711h_chip *chip;
> + const char *dev_conn_end;
>
> ret = rt1711h_check_revision(client);
> if (ret < 0) {
> @@ -254,6 +256,7 @@ static int rt1711h_probe(struct i2c_client *client,
> return PTR_ERR(chip->data.regmap);
>
> chip->dev = &client->dev;
> + dev_set_name(chip->dev, "rt1711h");
> i2c_set_clientdata(client, chip);
>
> ret = rt1711h_sw_reset(chip);
> @@ -264,6 +267,15 @@ static int rt1711h_probe(struct i2c_client *client,
> if (ret < 0)
> return ret;
>
> + ret = device_property_read_string(chip->dev, "dev-conn-end",
> + &dev_conn_end);
> + if (!ret) {
> + chip->dev_conn.endpoint[0] = "rt1711h";
> + chip->dev_conn.endpoint[1] = dev_conn_end;
> + chip->dev_conn.id = "usb-role-switch";
> + device_connection_add(&chip->dev_conn);
> + }
That is wrong. You should not read name of a device from a property.
Regardless of that, I don't think this patch is needed at all. You
need to describe this kind connection with OF device graph
(Documentation/devicetree/bindings/graph.txt).
I've prepared a proposal how we should be able handle graphs in the
device connection API:
https://lkml.org/lkml/2018/10/24/613
thanks,
--
heikki
next prev parent reply other threads:[~2018-10-29 11:58 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-27 9:58 [PATCH 00/10] Add support for usb on Hikey960 Yu Chen
2018-10-27 9:58 ` [PATCH 01/10] dt-bindings: usb: add support for dwc3 controller on HiSilicon SoCs Yu Chen
[not found] ` <20181112160241.GA14074@bogus>
2018-11-17 2:29 ` Chen Yu
2018-12-03 16:01 ` Rob Herring
2018-12-04 1:03 ` Chen Yu
2018-12-14 8:05 ` Chen Yu
2018-10-27 9:58 ` [PATCH 02/10] dt-bindings: phy: Add support for HiSilicon's hi3660 USB PHY Yu Chen
2018-10-27 9:58 ` [PATCH 03/10] dt-bindings: misc: Add bindings for HiSilicon usb hub and data role switch functionality on HiKey960 Yu Chen
2018-10-27 18:06 ` Sergei Shtylyov
2018-10-29 12:25 ` Chen Yu
2018-10-27 9:58 ` [PATCH 04/10] usb: dwc3: dwc3-hisi: Add code for dwc3 of Hisilicon Soc Platform Yu Chen
2018-10-27 9:58 ` [PATCH 05/10] usb: dwc3: Add two quirks for Hisilicon Kirin " Yu Chen
2018-10-27 9:58 ` [PATCH 06/10] phy: Add usb phy support for hi3660 Soc of Hisilicon Yu Chen
2018-11-12 9:09 ` Kishon Vijay Abraham I
2018-10-27 9:58 ` [PATCH 07/10] hikey960: Support usb functionality of Hikey960 Yu Chen
2018-10-29 14:30 ` Heikki Krogerus
2018-10-30 2:50 ` Chen Yu
2018-10-30 10:16 ` Heikki Krogerus
2018-10-27 9:58 ` [PATCH 08/10] usb: typec: Add support for usb role switch in rt1711h driver Yu Chen
2018-10-29 11:58 ` Heikki Krogerus [this message]
2018-10-29 12:22 ` Chen Yu
2018-10-27 9:58 ` [PATCH 09/10] usb: gadget: Add configfs attribuite for controling match_existing_only Yu Chen
2018-10-27 9:58 ` [PATCH 10/10] dts: hi3660: Add support for usb on Hikey960 Yu Chen
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=20181029115813.GA14534@kuha.fi.intel.com \
--to=heikki.krogerus@linux.intel.com \
--cc=chenyu56@huawei.com \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=john.stultz@linaro.org \
--cc=kongfei@hisilicon.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=lucas_tsai@richtek.com \
--cc=shufan_lee@richtek.com \
--cc=suzhuangluan@hisilicon.com \
--cc=wangbinghui@hisilicon.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).