| Message ID | 20201117131337.35307-1-wsa+renesas@sang-engineering.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mmc: tmio: Fix command error processing | expand |
Hi Wolfram, Thanks for your work. On 2020-11-17 14:13:37 +0100, Wolfram Sang wrote: > From: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com> > > If some errors are detected at the same time as the access end > interrupt, the access end interrupt was not cleared. Especially with > DMA, because then the access end interrupt was never enabled and, thus, > never cleared. Clear the interrupt register always when a command error > occurs. > > Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com> > [saito: rebase to v5.4] > Signed-off-by: Takeshi Saito <takeshi.saito.xv@renesas.com> > [wsa: rebase and extension of the commit message] > Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> > --- > > Because the test case is hard to reproduce (lots of radio noise and > temperature changes), I trust the BSP team here. But the reasoning makes > a lot of sense to me. I verified that there are no regressions with the > test cases I usually do. The patch is based on mmc/next as of today, > i.e. with all previous series included. I agree the reasoning make sens and the patch looks good, Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> > > drivers/mmc/host/tmio_mmc_core.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c > index cb4149fd12e0..7f4a28125010 100644 > --- a/drivers/mmc/host/tmio_mmc_core.c > +++ b/drivers/mmc/host/tmio_mmc_core.c > @@ -796,8 +796,10 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host) > > spin_unlock_irqrestore(&host->lock, flags); > > - if (mrq->cmd->error || (mrq->data && mrq->data->error)) > + if (mrq->cmd->error || (mrq->data && mrq->data->error)) { > + tmio_mmc_ack_mmc_irqs(host, TMIO_MASK_IRQ); /* Clear all */ > tmio_mmc_abort_dma(host); > + } > > /* Error means retune, but executed command was still successful */ > if (host->check_retune && host->check_retune(host)) > -- > 2.28.0 >
On Tue, 17 Nov 2020 at 14:15, Wolfram Sang <wsa+renesas@sang-engineering.com> wrote: > > From: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com> > > If some errors are detected at the same time as the access end > interrupt, the access end interrupt was not cleared. Especially with > DMA, because then the access end interrupt was never enabled and, thus, > never cleared. Clear the interrupt register always when a command error > occurs. > > Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com> > [saito: rebase to v5.4] > Signed-off-by: Takeshi Saito <takeshi.saito.xv@renesas.com> > [wsa: rebase and extension of the commit message] > Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Applied for next, thanks! Kind regards Uffe > --- > > Because the test case is hard to reproduce (lots of radio noise and > temperature changes), I trust the BSP team here. But the reasoning makes > a lot of sense to me. I verified that there are no regressions with the > test cases I usually do. The patch is based on mmc/next as of today, > i.e. with all previous series included. > > drivers/mmc/host/tmio_mmc_core.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c > index cb4149fd12e0..7f4a28125010 100644 > --- a/drivers/mmc/host/tmio_mmc_core.c > +++ b/drivers/mmc/host/tmio_mmc_core.c > @@ -796,8 +796,10 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host) > > spin_unlock_irqrestore(&host->lock, flags); > > - if (mrq->cmd->error || (mrq->data && mrq->data->error)) > + if (mrq->cmd->error || (mrq->data && mrq->data->error)) { > + tmio_mmc_ack_mmc_irqs(host, TMIO_MASK_IRQ); /* Clear all */ > tmio_mmc_abort_dma(host); > + } > > /* Error means retune, but executed command was still successful */ > if (host->check_retune && host->check_retune(host)) > -- > 2.28.0 >
diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c index cb4149fd12e0..7f4a28125010 100644 --- a/drivers/mmc/host/tmio_mmc_core.c +++ b/drivers/mmc/host/tmio_mmc_core.c @@ -796,8 +796,10 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host) spin_unlock_irqrestore(&host->lock, flags); - if (mrq->cmd->error || (mrq->data && mrq->data->error)) + if (mrq->cmd->error || (mrq->data && mrq->data->error)) { + tmio_mmc_ack_mmc_irqs(host, TMIO_MASK_IRQ); /* Clear all */ tmio_mmc_abort_dma(host); + } /* Error means retune, but executed command was still successful */ if (host->check_retune && host->check_retune(host))