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mmc: core: Reset HPI enabled state during re-init and in case of errors

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During a re-initialization of the eMMC card, we may fail to re-enable HPI.
In these cases, that isn't properly reflected in the card->ext_csd.hpi_en
bit, as it keeps being set. This may cause following attempts to use HPI,
even if's not enabled. Let's fix this!

Fixes: eb0d8f135b ("mmc: core: support HPI send command")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ulf Hansson 2018-12-10 17:52:36 +01:00
parent 0b47979068
commit a0741ba40a
1 changed files with 3 additions and 1 deletions
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4
drivers/mmc/core/mmc.c
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@ -1782,10 +1782,12 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
if (err) { if (err) {
pr_warn("%s: Enabling HPI failed\n", pr_warn("%s: Enabling HPI failed\n",
mmc_hostname(card->host)); mmc_hostname(card->host));
card->ext_csd.hpi_en = 0;
err = 0; err = 0;
} else } else {
card->ext_csd.hpi_en = 1; card->ext_csd.hpi_en = 1;
} }
}
/* /*
* If cache size is higher than 0, this indicates * If cache size is higher than 0, this indicates