mmc: mmci: Stash status while waiting for busy

Linus Walleij · Ulf Hansson · commit 8a6a9e79720a · 2023-06-19T13:14:26.000+02:00
Some interesting flags can arrive while we are waiting for the first busy detect IRQ so OR then onto the stashed flags so they are not missed. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-3-69a7164f2a61@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
@@ -713,6 +713,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)
 	 */
 	if (host->busy_status &&
 	    (status & host->variant->busy_detect_flag)) {
+		host->busy_status |= status & (MCI_CMDSENT | MCI_CMDRESPEND);
 		writel(host->variant->busy_detect_mask, base + MMCICLEAR);
 		return false;
 	}

Original file line number	Diff line number	Diff line change
`@@ -713,6 +713,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)`
`713`	`713`	`*/`
`714`	`714`	`if (host->busy_status &&`
`715`	`715`	`(status & host->variant->busy_detect_flag)) {`
	`716`	`+ host->busy_status \|= status & (MCI_CMDSENT \| MCI_CMDRESPEND);`
`716`	`717`	`writel(host->variant->busy_detect_mask, base + MMCICLEAR);`
`717`	`718`	`return false;`
`718`	`719`	`}`