diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0337-dwc_otg-Declare-DMA-capability-with-HCD_DMA-flag.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0337-dwc_otg-Declare-DMA-capability-with-HCD_DMA-flag.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0337-dwc_otg-Declare-DMA-capability-with-HCD_DMA-flag.patch b/target/linux/bcm27xx/patches-5.4/950-0337-dwc_otg-Declare-DMA-capability-with-HCD_DMA-flag.patch new file mode 100644 index 0000000000..afd72da286 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0337-dwc_otg-Declare-DMA-capability-with-HCD_DMA-flag.patch @@ -0,0 +1,27 @@ +From 941d43e29b1fa7352eb006b5ec37d6990ed3b877 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Fri, 15 Nov 2019 08:48:08 +0000 +Subject: [PATCH] dwc_otg: Declare DMA capability with HCD_DMA flag + +Following [1], USB controllers have to declare DMA capabilities in +order for them to be used by adding the HCD_DMA flag to their hc_driver +struct. + +[1] 7b81cb6bddd2 ("usb: add a HCD_DMA flag instead of guestimating DMA capabilities") + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c ++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c +@@ -119,7 +119,7 @@ static struct hc_driver dwc_otg_hc_drive + + .irq = dwc_otg_hcd_irq, + +- .flags = HCD_MEMORY | HCD_USB2, ++ .flags = HCD_MEMORY | HCD_DMA | HCD_USB2, + + //.reset = + .start = hcd_start, |