2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
From c237ff4a1325ac94169ed1f5f9022f1358b79ac9 Mon Sep 17 00:00:00 2001
|
|
From: P33M <P33M@github.com>
|
|
Date: Fri, 18 Mar 2016 17:38:37 +0000
|
|
Subject: [PATCH] dwc_otg: Don't free qh align buffers in atomic context
|
|
|
|
---
|
|
drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 9 +++++++--
|
|
1 file changed, 7 insertions(+), 2 deletions(-)
|
|
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
|
|
@@ -56,6 +56,9 @@ void dwc_otg_hcd_qh_free(dwc_otg_hcd_t *
|
|
{
|
|
dwc_otg_qtd_t *qtd, *qtd_tmp;
|
|
dwc_irqflags_t flags;
|
|
+ uint32_t buf_size = 0;
|
|
+ uint8_t *align_buf_virt = NULL;
|
|
+ dwc_dma_t align_buf_dma;
|
|
|
|
/* Free each QTD in the QTD list */
|
|
DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags);
|
|
@@ -67,17 +70,19 @@ void dwc_otg_hcd_qh_free(dwc_otg_hcd_t *
|
|
if (hcd->core_if->dma_desc_enable) {
|
|
dwc_otg_hcd_qh_free_ddma(hcd, qh);
|
|
} else if (qh->dw_align_buf) {
|
|
- uint32_t buf_size;
|
|
if (qh->ep_type == UE_ISOCHRONOUS) {
|
|
buf_size = 4096;
|
|
} else {
|
|
buf_size = hcd->core_if->core_params->max_transfer_size;
|
|
}
|
|
- DWC_DMA_FREE(buf_size, qh->dw_align_buf, qh->dw_align_buf_dma);
|
|
+ align_buf_virt = qh->dw_align_buf;
|
|
+ align_buf_dma = qh->dw_align_buf_dma;
|
|
}
|
|
|
|
DWC_FREE(qh);
|
|
DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
|
|
+ if (align_buf_virt)
|
|
+ DWC_DMA_FREE(buf_size, align_buf_virt, align_buf_dma);
|
|
return;
|
|
}
|
|
|