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https://git.yoctoproject.org/meta-ti
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Koen Kooi
536748db58
The complete patchset will get rebased to the tip of the PSP tree soon, but the conflicts take a lot of time to resolve. Signed-off-by: Koen Kooi <koen@dominion.thruhere.net> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
42 lines
1.3 KiB
Diff
42 lines
1.3 KiB
Diff
From 2e3ec89c3e6cf54d83479d7437696343463c90e5 Mon Sep 17 00:00:00 2001
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From: Ajay Kumar Gupta <ajay.gupta@ti.com>
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Date: Thu, 24 May 2012 16:03:02 +0530
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Subject: [PATCH 16/18] usb: musb: cppi41: tx dma completion fixes
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Use spinlock_irqsave/restore only during txdma completion giveback.
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Signed-off-by: Ravi B <ravibabu@ti.com>
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---
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drivers/usb/musb/cppi41_dma.c | 5 +++--
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1 files changed, 3 insertions(+), 2 deletions(-)
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diff --git a/drivers/usb/musb/cppi41_dma.c b/drivers/usb/musb/cppi41_dma.c
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index 4367e4f..ea83f9a 100644
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--- a/drivers/usb/musb/cppi41_dma.c
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+++ b/drivers/usb/musb/cppi41_dma.c
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@@ -1354,7 +1354,6 @@ void txdma_completion_work(struct work_struct *data)
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u16 csr;
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tx_ch = &cppi->tx_cppi_ch[index];
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- spin_lock_irqsave(&musb->lock, flags);
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if (tx_ch->tx_complete) {
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/* Sometimes a EP can unregister from a DMA
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* channel while the data is still in the FIFO.
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@@ -1384,10 +1383,12 @@ void txdma_completion_work(struct work_struct *data)
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tx_ch->channel.status =
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MUSB_DMA_STATUS_FREE;
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tx_ch->tx_complete = 0;
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+ spin_lock_irqsave(&musb->lock, flags);
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musb_dma_completion(musb, index+1, 1);
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+ spin_unlock_irqrestore(&musb->lock,
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+ flags);
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}
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}
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- spin_unlock_irqrestore(&musb->lock, flags);
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if (!resched)
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cond_resched();
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--
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1.7.7.6
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