fpga: dfl: fix bug in port reset handshake
[ Upstream commit 8614afd689df59d9ce019439389be20bd788a897 ]
When putting the port in reset, driver must wait for the soft reset
acknowledgment bit instead of the soft reset bit.
Fixes: 47c1b19c16
(fpga: dfl: afu: add port ops support)
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
060a740baf
commit
deae6e3a42
1 changed files with 2 additions and 1 deletions
|
@ -79,7 +79,8 @@ static int port_disable(struct platform_device *pdev)
|
|||
* on this port and minimum soft reset pulse width has elapsed.
|
||||
* Driver polls port_soft_reset_ack to determine if reset done by HW.
|
||||
*/
|
||||
if (readq_poll_timeout(base + PORT_HDR_CTRL, v, v & PORT_CTRL_SFTRST,
|
||||
if (readq_poll_timeout(base + PORT_HDR_CTRL, v,
|
||||
v & PORT_CTRL_SFTRST_ACK,
|
||||
RST_POLL_INVL, RST_POLL_TIMEOUT)) {
|
||||
dev_err(&pdev->dev, "timeout, fail to reset device\n");
|
||||
return -ETIMEDOUT;
|
||||
|
|
Loading…
Reference in a new issue