From: JC Kuo <jckuo@nvidia.com>
To: Nagarjuna Kristam <nkristam@nvidia.com>, <balbi@kernel.org>,
<gregkh@linuxfoundation.org>, <thierry.reding@gmail.com>,
<jonathanh@nvidia.com>, <mark.rutland@arm.com>,
<robh+dt@kernel.org>, <kishon@ti.com>
Cc: <devicetree@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [Patch V2 05/18] phy: tegra: xusb: Add support to get companion USB 3 port
Date: Thu, 26 Dec 2019 15:03:42 +0800 [thread overview]
Message-ID: <e37a083d-e5de-1b7c-f175-ec4234f60441@nvidia.com> (raw)
In-Reply-To: <1576660591-10383-6-git-send-email-nkristam@nvidia.com>
On 12/18/19 5:16 PM, Nagarjuna Kristam wrote:
> Tegra XUSB host, device mode driver requires the USB 3 companion port
> number for corresponding USB 2 port. Add API to retrieve the same.
>
> Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
> ---
> V2:
> - Added -ENODEV as return instead of -1, to sync other errors.
> ---
> drivers/phy/tegra/xusb.c | 21 +++++++++++++++++++++
> include/linux/phy/tegra/xusb.h | 2 ++
> 2 files changed, 23 insertions(+)
>
> diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c
> index 5bde8f1..e75cd71 100644
> --- a/drivers/phy/tegra/xusb.c
> +++ b/drivers/phy/tegra/xusb.c
> @@ -1256,6 +1256,27 @@ int tegra_phy_xusb_utmi_port_reset(struct phy *phy)
> }
> EXPORT_SYMBOL_GPL(tegra_phy_xusb_utmi_port_reset);
>
> +int tegra_xusb_padctl_get_usb3_companion(struct tegra_xusb_padctl *padctl,
> + unsigned int port)
> +{
> + struct tegra_xusb_usb2_port *usb2 = tegra_xusb_find_usb2_port(padctl,
> + port);
> + struct tegra_xusb_usb3_port *usb3;
> + int i;
> +
> + if (!usb2)
> + return -EINVAL;
> +
> + for (i = 0; i < padctl->soc->ports.usb3.count; i++) {
> + usb3 = tegra_xusb_find_usb3_port(padctl, i);
> + if (usb3 && usb3->port == usb2->base.index)
> + return usb3->base.index;
> + }
> +
> + return -ENODEV;
> +}
> +EXPORT_SYMBOL_GPL(tegra_xusb_padctl_get_usb3_companion);
> +
> MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
> MODULE_DESCRIPTION("Tegra XUSB Pad Controller driver");
> MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/phy/tegra/xusb.h b/include/linux/phy/tegra/xusb.h
> index 1235865..71d9569 100644
> --- a/include/linux/phy/tegra/xusb.h
> +++ b/include/linux/phy/tegra/xusb.h
> @@ -21,4 +21,6 @@ int tegra_xusb_padctl_usb3_set_lfps_detect(struct tegra_xusb_padctl *padctl,
> int tegra_xusb_padctl_set_vbus_override(struct tegra_xusb_padctl *padctl,
> bool val);
> int tegra_phy_xusb_utmi_port_reset(struct phy *phy);
> +int tegra_xusb_padctl_get_usb3_companion(struct tegra_xusb_padctl *padctl,
> + unsigned int port);
> #endif /* PHY_TEGRA_XUSB_H */
>
Reviewed-by: JC Kuo <jckuo@nvidia.com>
next prev parent reply other threads:[~2019-12-26 7:03 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-18 9:16 [Patch V2 00/18] Tegra XUSB OTG support Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 01/18] dt-bindings: phy: tegra-xusb: Add usb-role-switch Nagarjuna Kristam
2019-12-19 13:05 ` Thierry Reding
2019-12-20 8:08 ` JC Kuo
2020-01-10 11:16 ` Thierry Reding
2020-01-13 4:37 ` Nagarjuna Kristam
2020-01-13 15:06 ` Thierry Reding
2019-12-18 9:16 ` [Patch V2 02/18] dt-bindings: usb: Add NVIDIA Tegra XUSB device mode controller binding Nagarjuna Kristam
2019-12-18 23:24 ` Rob Herring
2019-12-19 13:10 ` Thierry Reding
2019-12-18 9:16 ` [Patch V2 03/18] phy: tegra: xusb: Add usb-role-switch support Nagarjuna Kristam
2019-12-19 13:26 ` Thierry Reding
2019-12-27 6:39 ` Nagarjuna Kristam
2019-12-29 9:36 ` Thierry Reding
2019-12-30 5:17 ` Nagarjuna Kristam
2019-12-26 6:42 ` JC Kuo
2019-12-27 6:18 ` Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 04/18] phy: tegra: xusb: Add usb-phy support Nagarjuna Kristam
2019-12-19 13:37 ` Thierry Reding
2019-12-27 7:06 ` Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 05/18] phy: tegra: xusb: Add support to get companion USB 3 port Nagarjuna Kristam
2019-12-26 7:03 ` JC Kuo [this message]
2019-12-18 9:16 ` [Patch V2 06/18] phy: tegra: xusb: Add set_mode support for USB 2 phy on Tegra210 Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 07/18] phy: tegra: xusb: Add set_mode support for utmi phy on Tegra186 Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 08/18] usb: xhci-tegra: Add OTG support Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 09/18] usb: gadget: tegra-xudc: Remove usb-role-switch support Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 10/18] usb: gadget: tegra-xudc: Add usb-phy support Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 11/18] usb: gadget: tegra-xudc: use phy_set_mode to set/unset device mode Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 12/18] usb: gadget: tegra-xudc: support multiple device modes Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 13/18] arm64: tegra: update OTG port entries for jetson-tx1 Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 14/18] arm64: tegra: update OTG port entries for jetson-tx2 Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 15/18] arm64: tegra: Add xudc node for Tegra210 Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 16/18] arm64: tegra: Enable xudc on Jetson TX1 Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 17/18] arm64: tegra: Add xudc node for Tegra186 Nagarjuna Kristam
2019-12-18 9:16 ` [Patch V2 18/18] arm64: tegra: Enable xudc node on Jetson TX2 Nagarjuna Kristam
2019-12-19 13:13 ` [Patch V2 00/18] Tegra XUSB OTG support Thierry Reding
2019-12-20 7:35 ` JC Kuo
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