From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/dma/sa11x0-dma.c | 36 +++++++++++++-----------------------
1 files changed, 13 insertions(+), 23 deletions(-)
diff --git a/kernel/drivers/dma/sa11x0-dma.c b/kernel/drivers/dma/sa11x0-dma.c
index b31d07c..1e918e2 100644
--- a/kernel/drivers/dma/sa11x0-dma.c
+++ b/kernel/drivers/dma/sa11x0-dma.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* SA11x0 DMAengine support
*
* Copyright (C) 2012 Russell King
* Derived in part from arch/arm/mach-sa1100/dma.c,
* Copyright (C) 2000, 2001 by Nicolas Pitre
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/sched.h>
#include <linux/device.h>
@@ -17,7 +14,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/sa11x0-dma.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
@@ -82,7 +78,7 @@
bool cyclic;
unsigned sglen;
- struct sa11x0_dma_sg sg[0];
+ struct sa11x0_dma_sg sg[];
};
struct sa11x0_dma_phy;
@@ -327,9 +323,9 @@
}
}
-static void sa11x0_dma_tasklet(unsigned long arg)
+static void sa11x0_dma_tasklet(struct tasklet_struct *t)
{
- struct sa11x0_dma_dev *d = (struct sa11x0_dma_dev *)arg;
+ struct sa11x0_dma_dev *d = from_tasklet(d, t, task);
struct sa11x0_dma_phy *p;
struct sa11x0_dma_chan *c;
unsigned pch, pch_alloc = 0;
@@ -706,7 +702,6 @@
struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan);
struct sa11x0_dma_dev *d = to_sa11x0_dma(chan->device);
struct sa11x0_dma_phy *p;
- LIST_HEAD(head);
unsigned long flags;
dev_dbg(d->slave.dev, "vchan %p: pause\n", &c->vc);
@@ -733,7 +728,6 @@
struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan);
struct sa11x0_dma_dev *d = to_sa11x0_dma(chan->device);
struct sa11x0_dma_phy *p;
- LIST_HEAD(head);
unsigned long flags;
dev_dbg(d->slave.dev, "vchan %p: resume\n", &c->vc);
@@ -829,6 +823,14 @@
{ "sa11x0-ssp", "tx", "Ser4SSPTr" },
{ "sa11x0-ssp", "rx", "Ser4SSPRc" },
};
+
+static bool sa11x0_dma_filter_fn(struct dma_chan *chan, void *param)
+{
+ struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan);
+ const char *p = param;
+
+ return !strcmp(c->name, p);
+}
static int sa11x0_dma_init_dmadev(struct dma_device *dmadev,
struct device *dev)
@@ -926,7 +928,7 @@
goto err_ioremap;
}
- tasklet_init(&d->task, sa11x0_dma_tasklet, (unsigned long)d);
+ tasklet_setup(&d->task, sa11x0_dma_tasklet);
for (i = 0; i < NR_PHY_CHAN; i++) {
struct sa11x0_dma_phy *p = &d->phy[i];
@@ -1086,18 +1088,6 @@
.probe = sa11x0_dma_probe,
.remove = sa11x0_dma_remove,
};
-
-bool sa11x0_dma_filter_fn(struct dma_chan *chan, void *param)
-{
- if (chan->device->dev->driver == &sa11x0_dma_driver.driver) {
- struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan);
- const char *p = param;
-
- return !strcmp(c->name, p);
- }
- return false;
-}
-EXPORT_SYMBOL(sa11x0_dma_filter_fn);
static int __init sa11x0_dma_init(void)
{
--
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