diff options
author | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-04-06 11:51:14 +0200 |
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committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-04-06 11:51:14 +0200 |
commit | 3b5766214a67f24913d4e046fc30eed7ec0ddc35 (patch) | |
tree | 65388dec2a13f78ede772136281607ae6c8ca9b7 /drivers/mmc/core/sd.c | |
parent | 70526554173aa46c8b13a59992b6fbc555fd4ee0 (diff) | |
parent | 78be8d8ebeafc24368e897c7fc78c301c1caf3c8 (diff) |
Merge remote-tracking branch 'jstultz/linaro-android-3.3' into stable-android-ux500-3.3-1
Conflicts:
arch/arm/common/Makefile
drivers/gpu/Makefile
drivers/misc/Kconfig
drivers/misc/Makefile
drivers/mmc/card/block.c
drivers/mmc/core/core.c
drivers/video/Kconfig
include/net/bluetooth/hci.h
include/net/bluetooth/hci_core.h
include/net/bluetooth/sco.h
kernel/printk.c
net/bluetooth/hci_conn.c
net/bluetooth/hci_event.c
net/bluetooth/l2cap_core.c
net/bluetooth/mgmt.c
net/bluetooth/sco.c
Diffstat (limited to 'drivers/mmc/core/sd.c')
-rw-r--r-- | drivers/mmc/core/sd.c | 86 |
1 files changed, 83 insertions, 3 deletions
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index c272c6868ec..7c76a455b1e 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -806,6 +806,9 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card, bool reinit) { int err; +#ifdef CONFIG_MMC_PARANOID_SD_INIT + int retries; +#endif if (!reinit) { /* @@ -832,7 +835,26 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card, /* * Fetch switch information from card. */ +#ifdef CONFIG_MMC_PARANOID_SD_INIT + for (retries = 1; retries <= 3; retries++) { + err = mmc_read_switch(card); + if (!err) { + if (retries > 1) { + printk(KERN_WARNING + "%s: recovered\n", + mmc_hostname(host)); + } + break; + } else { + printk(KERN_WARNING + "%s: read switch failed (attempt %d)\n", + mmc_hostname(host), retries); + } + } +#else err = mmc_read_switch(card); +#endif + if (err) return err; } @@ -1046,18 +1068,36 @@ static int mmc_sd_alive(struct mmc_host *host) */ static void mmc_sd_detect(struct mmc_host *host) { - int err; + int err = 0; +#ifdef CONFIG_MMC_PARANOID_SD_INIT + int retries = 5; +#endif BUG_ON(!host); BUG_ON(!host->card); - + mmc_claim_host(host); /* * Just check if our card has been removed. */ +#ifdef CONFIG_MMC_PARANOID_SD_INIT + while(retries) { + err = mmc_send_status(host->card, NULL); + if (err) { + retries--; + udelay(5); + continue; + } + break; + } + if (!retries) { + printk(KERN_ERR "%s(%s): Unable to re-detect card (%d)\n", + __func__, mmc_hostname(host), err); + } +#else err = _mmc_detect_card_removed(host); - +#endif mmc_release_host(host); if (err) { @@ -1096,12 +1136,31 @@ static int mmc_sd_suspend(struct mmc_host *host) static int mmc_sd_resume(struct mmc_host *host) { int err; +#ifdef CONFIG_MMC_PARANOID_SD_INIT + int retries; +#endif BUG_ON(!host); BUG_ON(!host->card); mmc_claim_host(host); +#ifdef CONFIG_MMC_PARANOID_SD_INIT + retries = 5; + while (retries) { + err = mmc_sd_init_card(host, host->ocr, host->card); + + if (err) { + printk(KERN_ERR "%s: Re-init card rc = %d (retries = %d)\n", + mmc_hostname(host), err, retries); + mdelay(5); + retries--; + continue; + } + break; + } +#else err = mmc_sd_init_card(host, host->ocr, host->card); +#endif mmc_release_host(host); return err; @@ -1155,6 +1214,9 @@ int mmc_attach_sd(struct mmc_host *host) { int err; u32 ocr; +#ifdef CONFIG_MMC_PARANOID_SD_INIT + int retries; +#endif BUG_ON(!host); WARN_ON(!host->claimed); @@ -1217,9 +1279,27 @@ int mmc_attach_sd(struct mmc_host *host) /* * Detect and init the card. */ +#ifdef CONFIG_MMC_PARANOID_SD_INIT + retries = 5; + while (retries) { + err = mmc_sd_init_card(host, host->ocr, NULL); + if (err) { + retries--; + continue; + } + break; + } + + if (!retries) { + printk(KERN_ERR "%s: mmc_sd_init_card() failure (err = %d)\n", + mmc_hostname(host), err); + goto err; + } +#else err = mmc_sd_init_card(host, host->ocr, NULL); if (err) goto err; +#endif mmc_release_host(host); err = mmc_add_card(host->card); |