From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/drivers/usb/musb/ux500_dma.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/drivers/usb/musb/ux500_dma.c b/kernel/drivers/usb/musb/ux500_dma.c
index d19bb3e..d5cf5e8 100644
--- a/kernel/drivers/usb/musb/ux500_dma.c
+++ b/kernel/drivers/usb/musb/ux500_dma.c
@@ -310,9 +310,9 @@
 			dma_channel->max_len = SZ_16M;
 
 			ux500_channel->dma_chan =
-				dma_request_slave_channel(dev, chan_names[ch_num]);
+				dma_request_chan(dev, chan_names[ch_num]);
 
-			if (!ux500_channel->dma_chan)
+			if (IS_ERR(ux500_channel->dma_chan))
 				ux500_channel->dma_chan =
 					dma_request_channel(mask,
 							    data ?

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