From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp
---
kernel/drivers/dma/txx9dmac.c | 22 +++++++---------------
1 files changed, 7 insertions(+), 15 deletions(-)
diff --git a/kernel/drivers/dma/txx9dmac.c b/kernel/drivers/dma/txx9dmac.c
index eb45af7..5b6b375 100644
--- a/kernel/drivers/dma/txx9dmac.c
+++ b/kernel/drivers/dma/txx9dmac.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for the TXx9 SoC DMA Controller
*
* Copyright (C) 2009 Atsushi Nemoto
- *
- * 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/dma-mapping.h>
#include <linux/init.h>
@@ -327,7 +324,6 @@
channel_writel(dc, SAIR, 0);
channel_writel(dc, DAIR, 0);
channel_writel(dc, CCR, 0);
- mmiowb();
}
/* Called with dc->lock held and bh disabled */
@@ -605,13 +601,13 @@
}
}
-static void txx9dmac_chan_tasklet(unsigned long data)
+static void txx9dmac_chan_tasklet(struct tasklet_struct *t)
{
int irq;
u32 csr;
struct txx9dmac_chan *dc;
- dc = (struct txx9dmac_chan *)data;
+ dc = from_tasklet(dc, t, tasklet);
csr = channel_readl(dc, CSR);
dev_vdbg(chan2dev(&dc->chan), "tasklet: status=%x\n", csr);
@@ -642,13 +638,13 @@
return IRQ_HANDLED;
}
-static void txx9dmac_tasklet(unsigned long data)
+static void txx9dmac_tasklet(struct tasklet_struct *t)
{
int irq;
u32 csr;
struct txx9dmac_chan *dc;
- struct txx9dmac_dev *ddev = (struct txx9dmac_dev *)data;
+ struct txx9dmac_dev *ddev = from_tasklet(ddev, t, tasklet);
u32 mcr;
int i;
@@ -954,7 +950,6 @@
dma_sync_single_for_device(chan2parent(&dc->chan),
prev->txd.phys, ddev->descsize,
DMA_TO_DEVICE);
- mmiowb();
if (!(channel_readl(dc, CSR) & TXX9_DMA_CSR_CHNEN) &&
channel_read_CHAR(dc) == prev->txd.phys)
/* Restart chain DMA */
@@ -1080,7 +1075,6 @@
static void txx9dmac_off(struct txx9dmac_dev *ddev)
{
dma_writel(ddev, MCR, 0);
- mmiowb();
}
static int __init txx9dmac_chan_probe(struct platform_device *pdev)
@@ -1119,8 +1113,7 @@
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
- tasklet_init(&dc->tasklet, txx9dmac_chan_tasklet,
- (unsigned long)dc);
+ tasklet_setup(&dc->tasklet, txx9dmac_chan_tasklet);
dc->irq = irq;
err = devm_request_irq(&pdev->dev, dc->irq,
txx9dmac_chan_interrupt, 0, dev_name(&pdev->dev), dc);
@@ -1206,8 +1199,7 @@
ddev->irq = platform_get_irq(pdev, 0);
if (ddev->irq >= 0) {
- tasklet_init(&ddev->tasklet, txx9dmac_tasklet,
- (unsigned long)ddev);
+ tasklet_setup(&ddev->tasklet, txx9dmac_tasklet);
err = devm_request_irq(&pdev->dev, ddev->irq,
txx9dmac_interrupt, 0, dev_name(&pdev->dev), ddev);
if (err)
--
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