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openwrt/target/linux/bcm27xx/patches-6.6/950-1145-fixup-dmaengine-dw-axi-dmac-Fixes-for-RP1.patch
Álvaro Fernández Rojas e74ead2249 bcm27xx: update to latest RPi patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.36..rpi-6.6.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-07-05 10:05:58 +02:00

90 lines
2.7 KiB
Diff

From 769634f344626ed73bcda14c91b567067974d7b2 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Sat, 29 Jun 2024 09:30:23 +0100
Subject: [PATCH 1145/1145] fixup! dmaengine: dw-axi-dmac: Fixes for RP1
nr_hw_descs is the upstream version of what count_hw_descs, so make
(more) use of it instead.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 14 +++++++-------
drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 -
2 files changed, 7 insertions(+), 8 deletions(-)
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -305,7 +305,7 @@ static struct axi_dma_lli *axi_desc_get(
static void axi_desc_put(struct axi_dma_desc *desc)
{
struct axi_dma_chan *chan = desc->chan;
- u32 count = desc->hw_desc_count;
+ int count = desc->nr_hw_descs;
struct axi_dma_hw_desc *hw_desc;
int descs_put;
@@ -849,7 +849,7 @@ dw_axi_dma_chan_prep_cyclic(struct dma_c
src_addr += segment_len;
}
- desc->hw_desc_count = total_segments;
+ desc->nr_hw_descs = total_segments;
llp = desc->hw_desc[0].llp;
@@ -933,7 +933,7 @@ dw_axi_dma_chan_prep_slave_sg(struct dma
} while (len >= segment_len);
}
- desc->hw_desc_count = loop;
+ desc->nr_hw_descs = loop;
/* Set end-of-link to the last link descriptor of list */
set_desc_last(&desc->hw_desc[num_sgs - 1]);
@@ -1042,7 +1042,7 @@ dma_chan_prep_dma_memcpy(struct dma_chan
num++;
}
- desc->hw_desc_count = num;
+ desc->nr_hw_descs = num;
/* Set end-of-link to the last link descriptor of list */
set_desc_last(&desc->hw_desc[num - 1]);
@@ -1092,7 +1092,7 @@ static void axi_chan_dump_lli(struct axi
static void axi_chan_list_dump_lli(struct axi_dma_chan *chan,
struct axi_dma_desc *desc_head)
{
- u32 count = desc_head->hw_desc_count;
+ int count = desc_head->nr_hw_descs;
int i;
for (i = 0; i < count; i++)
@@ -1139,7 +1139,7 @@ static void axi_chan_block_xfer_complete
struct axi_dma_desc *desc;
struct virt_dma_desc *vd;
unsigned long flags;
- u32 count;
+ int count;
u64 llp;
int i;
@@ -1161,7 +1161,7 @@ static void axi_chan_block_xfer_complete
if (chan->cyclic) {
desc = vd_to_axi_desc(vd);
if (desc) {
- count = desc->hw_desc_count;
+ count = desc->nr_hw_descs;
llp = lo_hi_readq(chan->chan_regs + CH_LLP);
for (i = 0; i < count; i++) {
hw_desc = &desc->hw_desc[i];
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
@@ -101,7 +101,6 @@ struct axi_dma_desc {
struct virt_dma_desc vd;
struct axi_dma_chan *chan;
- u32 hw_desc_count;
u32 completed_blocks;
u32 length;
u32 period_len;