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    Subject[PATCH v3 4/4] usb: aspeed-vhub: support test mode feature
    Date
    Support aspeed usb vhub set feature to test mode.

    Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
    ---
    drivers/usb/gadget/udc/aspeed-vhub/dev.c | 19 +++++++++++++++----
    drivers/usb/gadget/udc/aspeed-vhub/hub.c | 23 +++++++++++++++++------
    2 files changed, 32 insertions(+), 10 deletions(-)

    diff --git a/drivers/usb/gadget/udc/aspeed-vhub/dev.c b/drivers/usb/gadget/udc/aspeed-vhub/dev.c
    index d918e8b2af3c..b0dfca43fbdc 100644
    --- a/drivers/usb/gadget/udc/aspeed-vhub/dev.c
    +++ b/drivers/usb/gadget/udc/aspeed-vhub/dev.c
    @@ -110,15 +110,26 @@ static int ast_vhub_dev_feature(struct ast_vhub_dev *d,
    u16 wIndex, u16 wValue,
    bool is_set)
    {
    + u32 val;
    +
    DDBG(d, "%s_FEATURE(dev val=%02x)\n",
    is_set ? "SET" : "CLEAR", wValue);

    - if (wValue != USB_DEVICE_REMOTE_WAKEUP)
    - return std_req_driver;
    + if (wValue == USB_DEVICE_REMOTE_WAKEUP) {
    + d->wakeup_en = is_set;
    + return std_req_complete;
    + }

    - d->wakeup_en = is_set;
    + if (wValue == USB_DEVICE_TEST_MODE) {
    + val = readl(d->vhub->regs + AST_VHUB_CTRL);
    + val &= ~GENMASK(10, 8);
    + val |= VHUB_CTRL_SET_TEST_MODE((wIndex >> 8) & 0x7);
    + writel(val, d->vhub->regs + AST_VHUB_CTRL);

    - return std_req_complete;
    + return std_req_complete;
    + }
    +
    + return std_req_driver;
    }

    static int ast_vhub_ep_feature(struct ast_vhub_dev *d,
    diff --git a/drivers/usb/gadget/udc/aspeed-vhub/hub.c b/drivers/usb/gadget/udc/aspeed-vhub/hub.c
    index 93f27a745760..65cd4e46f031 100644
    --- a/drivers/usb/gadget/udc/aspeed-vhub/hub.c
    +++ b/drivers/usb/gadget/udc/aspeed-vhub/hub.c
    @@ -212,17 +212,28 @@ static int ast_vhub_hub_dev_feature(struct ast_vhub_ep *ep,
    u16 wIndex, u16 wValue,
    bool is_set)
    {
    + u32 val;
    +
    EPDBG(ep, "%s_FEATURE(dev val=%02x)\n",
    is_set ? "SET" : "CLEAR", wValue);

    - if (wValue != USB_DEVICE_REMOTE_WAKEUP)
    - return std_req_stall;
    + if (wValue == USB_DEVICE_REMOTE_WAKEUP) {
    + ep->vhub->wakeup_en = is_set;
    + EPDBG(ep, "Hub remote wakeup %s\n",
    + is_set ? "enabled" : "disabled");
    + return std_req_complete;
    + }

    - ep->vhub->wakeup_en = is_set;
    - EPDBG(ep, "Hub remote wakeup %s\n",
    - is_set ? "enabled" : "disabled");
    + if (wValue == USB_DEVICE_TEST_MODE) {
    + val = readl(ep->vhub->regs + AST_VHUB_CTRL);
    + val &= ~GENMASK(10, 8);
    + val |= VHUB_CTRL_SET_TEST_MODE((wIndex >> 8) & 0x7);
    + writel(val, ep->vhub->regs + AST_VHUB_CTRL);

    - return std_req_complete;
    + return std_req_complete;
    + }
    +
    + return std_req_stall;
    }

    static int ast_vhub_hub_ep_feature(struct ast_vhub_ep *ep,
    --
    2.25.1
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