| Message ID | 87eh6jz3fi.wl%kuninori.morimoto.gx@renesas.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Morimoto-san, Thank you for the patch. On Thursday 14 November 2013 02:24:37 Kuninori Morimoto wrote: > From: Shinobu Uehara <shinobu.uehara.xc@renesas.com> > > After a card is ejected during card access, > the re-inserted card does not identified. > It can be identified by clearing error IRQ status. > > Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com> > Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com> > Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> > --- > drivers/mmc/host/tmio_mmc_pio.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/mmc/host/tmio_mmc_pio.c > b/drivers/mmc/host/tmio_mmc_pio.c index 05ae15c..99f6d29 100644 > --- a/drivers/mmc/host/tmio_mmc_pio.c > +++ b/drivers/mmc/host/tmio_mmc_pio.c > @@ -565,6 +565,9 @@ static void tmio_mmc_card_irq_status(struct > tmio_mmc_host *host, > > pr_debug_status(*status); > pr_debug_status(*ireg); > + > + /* Clear the status except the interrupt status */ > + sd_ctrl_write32(host, CTL_STATUS, TMIO_MASK_IRQ); You should write *status, not TMIO_MASK_IRQ, or you could loose an interrupt if it gets triggered between the status read and status write. > } > > static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index 05ae15c..99f6d29 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -565,6 +565,9 @@ static void tmio_mmc_card_irq_status(struct tmio_mmc_host *host, pr_debug_status(*status); pr_debug_status(*ireg); + + /* Clear the status except the interrupt status */ + sd_ctrl_write32(host, CTL_STATUS, TMIO_MASK_IRQ); } static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,