diff mbox series

[v2,11/12] mmc: mmci: Drop end IRQ from Ux500 busydetect

Message ID 20230405-pl180-busydetect-fix-v2-11-eeb10323b546@linaro.org
State New
Headers show
Series Fix busydetect on Ux500 PL180/MMCI | expand

Commit Message

Linus Walleij April 8, 2023, 10 p.m. UTC
The Ux500 has these state transition edges:

IDLE -> WAITING_FOR_IRQS -> START_IRQ -> DONE

The first IRQ move us from WAITING_FOR_IRQS to START_IRQ
and the second IRQ moves us from START_IRQ to DONE.

This didn't come out until after all refactoring.

For STM32 we keep the END_IRQ state around, because that
is indeed what we are waiting for in that case.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v1->v2:
- No changes
---
 drivers/mmc/host/mmci.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 180a7b719347..17233702e7fb 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -758,7 +758,7 @@  static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)
 		if (status & host->variant->busy_detect_flag) {
 			host->busy_status |= status & (MCI_CMDSENT | MCI_CMDRESPEND);
 			writel(host->variant->busy_detect_mask, base + MMCICLEAR);
-			host->busy_state = MMCI_BUSY_END_IRQ;
+			ux500_busy_clear_mask_done(host);
 		} else {
 			dev_dbg(mmc_dev(host->mmc),
 				"lost busy status when waiting for busy end IRQ\n");
@@ -766,20 +766,6 @@  static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)
 		}
 		break;
 
-	/*
-	 * If there is a command in-progress that has been successfully
-	 * sent and the busy bit isn't set, it means we have received
-	 * the busy end IRQ. Clear and mask the IRQ, then continue to
-	 * process the command.
-	 */
-	case MMCI_BUSY_END_IRQ:
-		if (status & host->variant->busy_detect_flag) {
-			/* We should just get two IRQs for busy detect */
-			dev_err(mmc_dev(host->mmc), "spurious busy detect IRQ\n");
-		}
-		ux500_busy_clear_mask_done(host);
-		break;
-
 	case MMCI_BUSY_DONE:
 		break;