From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bin Meng Date: Fri, 16 Jun 2017 06:31:33 -0700 Subject: [U-Boot] [PATCH 04/20] usb: xhci: Add input slot context in xhci_set_configuration() In-Reply-To: <1497619909-29454-1-git-send-email-bmeng.cn@gmail.com> References: <1497619909-29454-1-git-send-email-bmeng.cn@gmail.com> Message-ID: <1497619909-29454-5-git-send-email-bmeng.cn@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de A valid input slot context for a 'configure endpoint' command requires the 'Context Entries' field to be initialized to the index of the last valid endpoint context that is defined by the target configuration. We set up the 'Context Entries' field, but we forget to include the input slot context in the input control context 'Add Context flags' bitmap. So xHC will simply ignore input slot context and continue using its own which contains old information of the device. Signed-off-by: Bin Meng --- drivers/usb/host/xhci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 3201177..c949000 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -332,8 +332,8 @@ static int xhci_set_configuration(struct usb_device *udev) ifdesc = &udev->config.if_desc[0]; ctrl_ctx = xhci_get_input_control_ctx(in_ctx); - /* Zero the input context control */ - ctrl_ctx->add_flags = 0; + /* Initialize the input context control */ + ctrl_ctx->add_flags = cpu_to_le32(SLOT_FLAG); ctrl_ctx->drop_flags = 0; /* EP_FLAG gives values 1 & 4 for EP1OUT and EP2IN */ -- 2.9.2