xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drivers: net: davinci_cpdma: acknowledge interrupt properly

Browse Source 
CPDMA interrupts are not properly acknowledged which leads to interrupt
storm, only cpdma interrupt 0 is acknowledged in Davinci CPDMA driver.
Changed cpdma_ctlr_eoi api to acknowledge 1 and 2 interrupts which are
used for rx and tx respectively.

Reported-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mugunthan V N
2013-02-17 22:19:20 +00:00
committed by David S. Miller
parent 4153577a8d
commit 510a1e7249
3 changed files with 25 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/ti/davinci_cpdma.c
View File

@@ -493,9 +493,9 @@ int cpdma_ctlr_int_ctrl(struct cpdma_ctlr *ctlr, bool enable)
return 0;
}
void cpdma_ctlr_eoi(struct cpdma_ctlr *ctlr)
void cpdma_ctlr_eoi(struct cpdma_ctlr *ctlr, u32 value)
{
dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, 0);
dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, value);
}
struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num,