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mmc: mmci: Use state machine state as exit condition

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Return true if and only if we reached the state
MMCI_BUSY_DONE in the ux500 ->busy_complete() callback.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-7-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Linus Walleij 2023-06-16 22:42:25 +02:00 committed by Ulf Hansson
parent 7892497f1f
commit e85fecc386
1 changed files with 10 additions and 8 deletions
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18
drivers/mmc/host/mmci.c
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@ -683,7 +683,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)
~host->variant->busy_detect_mask, base + MMCIMASK0);
host->busy_state = MMCI_BUSY_DONE;
host->busy_status = 0;
return true;
goto out_ret_state;
}
/*
@ -713,7 +713,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)
host->variant->busy_detect_mask,
base + MMCIMASK0);
host->busy_state = MMCI_BUSY_WAITING_FOR_START_IRQ;
return false;
goto out_ret_state;
}
retries--;
}
@ -722,8 +722,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)
writel(readl(base + MMCIMASK0) &
~host->variant->busy_detect_mask, base + MMCIMASK0);
host->busy_state = MMCI_BUSY_DONE;
host->busy_status = 0;
return true;
goto out_ret_state;
}
/*
@ -742,7 +741,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)
host->busy_status |= status & (MCI_CMDSENT | MCI_CMDRESPEND);
writel(host->variant->busy_detect_mask, base + MMCICLEAR);
host->busy_state = MMCI_BUSY_WAITING_FOR_END_IRQ;
return false;
goto out_ret_state;
} else {
dev_dbg(mmc_dev(host->mmc),
"lost busy status when waiting for busy start IRQ\n");
@ -751,7 +750,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk)
~host->variant->busy_detect_mask, base + MMCIMASK0);
host->busy_state = MMCI_BUSY_DONE;
host->busy_status = 0;
return true;
goto out_ret_state;
}
}
@ -759,15 +758,18 @@ 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);
host->busy_state = MMCI_BUSY_DONE;
return true;
goto out_ret_state;
} else {
dev_dbg(mmc_dev(host->mmc),
"busy status still asserted when handling busy end IRQ - will keep waiting\n");
return false;
goto out_ret_state;
}
}
return true;
out_ret_state:
return (host->busy_state == MMCI_BUSY_DONE);
}
/*