On 07.09.2017 10:33, Geert Uytterhoeven wrote:
Hi Dirk,
On Wed, Sep 6, 2017 at 9:05 AM, Dirk Behme <dirk.behme@xxxxxxxxxxxx> wrote:
From: Ryo Kataoka <ryo.kataoka.wt@xxxxxxxxxxx>
When reception DMA completes before transmission DMA, next transmission
DMA may not be able to start. This patch adds wait_for_completion_timeout()
to both of reception DMA and transmission DMA.
If the driver waits only for the Rx DMA completion, the Tx DMA completion
thread of DMA Engine may be still processing.
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@xxxxxxxxxxx>
[reword commit message]
Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@xxxxxxxxxxx>
[adjust context]
Signed-off-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
Is this still needed after "[PATCH 5/8] spi: sh-msiof: Wait for Tx
FIFO empty after DMA"?
Do you have a proposal for nice test cases you like to see covered?
Best regards
Dirk
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