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mmc: tmio: Fix command error processing 

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>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20201117131337.35307-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Masaharu Hayakawa 2020-11-17 14:13:37 +01:00 committed by Ulf Hansson
parent 854a22997a
commit 40e49564e1
1 changed files with 3 additions and 1 deletions
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4
drivers/mmc/host/tmio_mmc_core.c
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@ -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))