mirror of
https://github.com/Ysurac/openmptcprouter.git
synced 2025-02-15 04:42:02 +00:00
39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
From 2718a4d208663cc700091e4425fbe65ec6a5d675 Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
Date: Thu, 27 Aug 2020 16:30:26 +0100
|
|
Subject: [PATCH 291/634] media: bcm2835-unicam: Drop WARN on uing direct cache
|
|
alias
|
|
|
|
Pi 0&1 pass all ARM accesses through the VPU L2 cache, therefore
|
|
the dma-ranges property sets the cache alias bits to other
|
|
than the direct alias, hence this WARN was firing.
|
|
|
|
It was overprotective coding, so assume that everything is OK
|
|
with the dma-ranges, and remove the WARN.
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
---
|
|
drivers/media/platform/bcm2835/bcm2835-unicam.c | 7 -------
|
|
1 file changed, 7 deletions(-)
|
|
|
|
diff --git a/drivers/media/platform/bcm2835/bcm2835-unicam.c b/drivers/media/platform/bcm2835/bcm2835-unicam.c
|
|
index 295db7564614..35ddb97f7f75 100644
|
|
--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
|
|
+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
|
|
@@ -709,13 +709,6 @@ static void unicam_wr_dma_addr(struct unicam_device *dev, dma_addr_t dmaaddr,
|
|
{
|
|
dma_addr_t endaddr = dmaaddr + buffer_size;
|
|
|
|
- /*
|
|
- * dmaaddr and endaddr should be a 32-bit address with the top two bits
|
|
- * set to 0x3 to signify uncached access through the Videocore memory
|
|
- * controller.
|
|
- */
|
|
- WARN_ON((dmaaddr >> 30) != 0x3 || (endaddr >> 30) != 0x3);
|
|
-
|
|
if (pad_id == IMAGE_PAD) {
|
|
reg_write(dev, UNICAM_IBSA0, dmaaddr);
|
|
reg_write(dev, UNICAM_IBEA0, endaddr);
|
|
--
|
|
2.33.1
|
|
|