This is a note to let you know that I've just added the patch titled
usb: gadget: bdc: 64-bit pointer capability check
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: usb-gadget-bdc-64-bit-pointer-capability-check.patch and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From c8e4e5bdb62a5ac6f860ebcaaf7b467b62f453f1 Mon Sep 17 00:00:00 2001
From: Srinath Mannam srinath.mannam@broadcom.com Date: Thu, 15 Jun 2017 14:39:22 +0530 Subject: usb: gadget: bdc: 64-bit pointer capability check
From: Srinath Mannam srinath.mannam@broadcom.com
commit c8e4e5bdb62a5ac6f860ebcaaf7b467b62f453f1 upstream.
Corrected the register to check the 64-bit pointer capability state. 64-bit pointer implementation capability was checking in wrong register, which causes the BDC enumeration failure in 64-bit memory address.
Fixes: efed421a94e6 ("usb: gadget: Add UDC driver for Broadcom USB3.0 device controller IP BDC")
Reviewed-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: Srinath Mannam srinath.mannam@broadcom.com Signed-off-by: Felipe Balbi felipe.balbi@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/gadget/udc/bdc/bdc_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/gadget/udc/bdc/bdc_core.c +++ b/drivers/usb/gadget/udc/bdc/bdc_core.c @@ -475,7 +475,7 @@ static int bdc_probe(struct platform_dev bdc->dev = dev; dev_dbg(bdc->dev, "bdc->regs: %p irq=%d\n", bdc->regs, bdc->irq);
- temp = bdc_readl(bdc->regs, BDC_BDCSC); + temp = bdc_readl(bdc->regs, BDC_BDCCAP1); if ((temp & BDC_P64) && !dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))) { dev_dbg(bdc->dev, "Using 64-bit address\n");
Patches currently in stable-queue which might be from srinath.mannam@broadcom.com are
queue-4.4/usb-gadget-bdc-64-bit-pointer-capability-check.patch