From: swarren@wwwdotorg•org (Stephen Warren)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v3 6/9] usb: xhci: Add NVIDIA Tegra xHCI host-controller driver
Date: Wed, 03 Sep 2014 10:17:27 -0600 [thread overview]
Message-ID: <54073F17.2050507@wwwdotorg.org> (raw)
In-Reply-To: <1409693701-16520-7-git-send-email-abrestic@chromium.org>
On 09/02/2014 03:34 PM, Andrew Bresticker wrote:
> Add support for the on-chip xHCI host controller present on Tegra SoCs.
>
> The driver is currently very basic: it loads the controller with its
> firmware, starts the controller, and is able to service messages sent
> by the controller's firmware. The hardware also supports device mode
> as well as powergating of the SuperSpeed and host-controller logic
> when not in use, but support for these is not yet implemented.
> diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
> +static bool is_host_mbox_message(u32 cmd)
> +{
> + switch (cmd) {
> + case MBOX_CMD_INC_SSPI_CLOCK:
> + case MBOX_CMD_DEC_SSPI_CLOCK:
> + case MBOX_CMD_INC_FALC_CLOCK:
> + case MBOX_CMD_DEC_FALC_CLOCK:
> + return true;
> + case MBOX_CMD_SET_BW:
> + /*
> + * TODO: Request bandwidth once EMC scaling is supported.
> + * Ignore for now since ACK/NAK is not required for SET_BW
> + * messages.
> + */
I think that TODO belongs inside tegra_xhci_mbox_work() where the
message would actually be handled, if implemented.
next prev parent reply other threads:[~2014-09-03 16:17 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-02 21:34 [PATCH v3 0/9] Tegra xHCI support Andrew Bresticker
2014-09-02 21:34 ` [PATCH v3 1/9] of: Add NVIDIA Tegra XUSB mailbox binding Andrew Bresticker
2014-09-03 16:19 ` Stephen Warren
2014-09-02 21:34 ` [PATCH v3 2/9] mailbox: Add NVIDIA Tegra XUSB mailbox driver Andrew Bresticker
2014-09-02 21:34 ` [PATCH v3 3/9] of: Update Tegra XUSB pad controller binding for USB Andrew Bresticker
2014-09-02 21:34 ` [PATCH v3 4/9] pinctrl: tegra-xusb: Add USB PHY support Andrew Bresticker
2014-09-02 21:34 ` [PATCH v3 5/9] of: Add NVIDIA Tegra xHCI controller binding Andrew Bresticker
2014-09-02 21:34 ` [PATCH v3 6/9] usb: xhci: Add NVIDIA Tegra xHCI host-controller driver Andrew Bresticker
2014-09-03 16:17 ` Stephen Warren [this message]
2014-09-02 21:34 ` [PATCH v3 7/9] ARM: tegra: Add Tegra124 XUSB mailbox and xHCI controller Andrew Bresticker
2014-09-02 21:35 ` [PATCH v3 8/9] ARM: tegra: jetson-tk1: Add xHCI support Andrew Bresticker
2014-09-02 21:35 ` [PATCH v3 9/9] ARM: tegra: venice2: " Andrew Bresticker
2014-09-08 15:34 ` [PATCH v3 0/9] Tegra " Tomeu Vizoso
2014-09-08 16:22 ` Andrew Bresticker
2014-09-09 8:21 ` Tomeu Vizoso
2014-09-09 17:09 ` Andrew Bresticker
2014-09-10 10:24 ` Tomeu Vizoso
2014-09-12 16:37 ` Andrew Bresticker
2014-09-15 7:00 ` Tomeu Vizoso
2014-09-15 17:06 ` Andrew Bresticker
2014-09-15 18:09 ` Stephen Warren
2014-09-15 19:30 ` Andrew Bresticker
2014-09-16 15:26 ` Stephen Warren
2014-09-16 16:57 ` Andrew Bresticker
2014-09-16 22:40 ` Stephen Warren
2014-09-16 22:51 ` Andrew Bresticker
2014-09-16 23:03 ` Stephen Warren
2014-09-17 13:45 ` Mikko Perttunen
2014-09-16 22:46 ` Andrew Bresticker
2014-09-16 23:15 ` Stephen Warren
2014-09-16 23:51 ` Andrew Bresticker
2014-09-17 15:41 ` Stephen Warren
2014-09-17 17:46 ` Andrew Bresticker
2014-09-16 10:43 ` Tomeu Vizoso
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