At several places in mmc_sdio_init_card function the cached mask in
host->ocr were being updated. To simplify code, we make use of an
local ocr parameter instead.
Signed-off-by: Ulf Hansson <ulf.hans...@linaro.org>
---
drivers/mmc/core/sdio.c | 26 ++++++++++----------------
1 file changed, 10 insertions(+), 16 deletions(-)
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 26b1316..9587d9f 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -593,23 +593,27 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32
ocr,
struct mmc_card *card;
int err;
int retries = 10;
+ u32 rocr = 0;
BUG_ON(!host);
WARN_ON(!host->claimed);
+ /* to query card if 1.8V signalling is supported */
+ if (mmc_host_uhs(host))
+ ocr |= R4_18V_PRESENT;
+
try_again:
if (!retries) {
pr_warning("%s: Skipping voltage switch\n",
mmc_hostname(host));
ocr &= ~R4_18V_PRESENT;
- host->ocr &= ~R4_18V_PRESENT;
}
/*
* Inform the card of the voltage
*/
if (!powered_resume) {
- err = mmc_send_io_op_cond(host, host->ocr, &ocr);
+ err = mmc_send_io_op_cond(host, ocr, &rocr);
if (err)
goto err;
}
@@ -632,8 +636,8 @@ try_again:
goto err;
}
- if ((ocr & R4_MEMORY_PRESENT) &&
- mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid, NULL) == 0) {
+ if ((rocr & R4_MEMORY_PRESENT) &&
+ mmc_sd_get_cid(host, ocr & rocr, card->raw_cid, NULL) == 0) {
card->type = MMC_TYPE_SD_COMBO;
if (oldcard && (oldcard->type != MMC_TYPE_SD_COMBO ||
@@ -663,9 +667,9 @@ try_again:
* systems that claim 1.8v signalling in fact do not support
* it.
*/
- if (!powered_resume && (ocr & R4_18V_PRESENT) && mmc_host_uhs(host)) {
+ if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) {
err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
- host->ocr);
+ ocr);
if (err == -EAGAIN) {
sdio_reset(host);
mmc_go_idle(host);
@@ -675,12 +679,10 @@ try_again:
goto try_again;
} else if (err) {
ocr &= ~R4_18V_PRESENT;
- host->ocr &= ~R4_18V_PRESENT;
}
err = 0;
} else {
ocr &= ~R4_18V_PRESENT;
- host->ocr &= ~R4_18V_PRESENT;
}
/*
@@ -1084,10 +1086,6 @@ static int mmc_sdio_power_restore(struct mmc_host *host)
goto out;
}
- if (mmc_host_uhs(host))
- /* to query card if 1.8V signalling is supported */
- host->ocr |= R4_18V_PRESENT;
-
ret = mmc_sdio_init_card(host, host->ocr, host->card,
mmc_card_keep_power(host));
if (!ret && host->sdio_irqs)
@@ -1170,10 +1168,6 @@ int mmc_attach_sdio(struct mmc_host *host)
/*
* Detect and init the card.
*/
- if (mmc_host_uhs(host))
- /* to query card if 1.8V signalling is supported */
- host->ocr |= R4_18V_PRESENT;
-
err = mmc_sdio_init_card(host, host->ocr, NULL, 0);
if (err)
goto err;
--
1.7.9.5
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