mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 07:22:33 +00:00
8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
33 lines
1013 B
Diff
33 lines
1013 B
Diff
From 137865877ea138ef9c593ce74cbd4ddc2560e057 Mon Sep 17 00:00:00 2001
|
|
From: Matthias Reichl <hias@horus.com>
|
|
Date: Sun, 11 Oct 2020 00:48:55 +0200
|
|
Subject: [PATCH] bcm2835-dma: only reserve channel 0 if legacy dma
|
|
driver is enabled
|
|
|
|
If CONFIG_DMA_BCM2708 isn't enabled there's no need to mask out
|
|
one of the already scarce DMA channels.
|
|
|
|
Signed-off-by: Matthias Reichl <hias@horus.com>
|
|
---
|
|
drivers/dma/bcm2835-dma.c | 2 ++
|
|
1 file changed, 2 insertions(+)
|
|
|
|
--- a/drivers/dma/bcm2835-dma.c
|
|
+++ b/drivers/dma/bcm2835-dma.c
|
|
@@ -1283,6 +1283,7 @@ static int bcm2835_dma_probe(struct plat
|
|
goto err_no_dma;
|
|
}
|
|
|
|
+#ifdef CONFIG_DMA_BCM2708
|
|
/* One channel is reserved for the legacy API */
|
|
if (chans_available & BCM2835_DMA_BULK_MASK) {
|
|
rc = bcm_dmaman_probe(pdev, base,
|
|
@@ -1293,6 +1294,7 @@ static int bcm2835_dma_probe(struct plat
|
|
|
|
chans_available &= ~BCM2835_DMA_BULK_MASK;
|
|
}
|
|
+#endif
|
|
|
|
/* And possibly one for the 40-bit DMA memcpy API */
|
|
if (chans_available & od->cfg_data->chan_40bit_mask &
|