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authorAdrian Hunter <adrian.hunter@intel.com>2017-11-29 15:41:09 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2017-12-11 12:44:36 +0100
commitc89b4851c67fb7354862850ae181de883269487d (patch)
treeb04cac6efc10ef53071d8fa2130df699c58ddeaf /drivers/mmc/core
parent88a516461ee07a994c0e7016faf85f3466de1d09 (diff)
mmc: block: Make card_busy_detect() accumulate all response error bits
Make card_busy_detect() accumulate all response error bits. Later patches will make use of this. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/mmc/core')
-rw-r--r--drivers/mmc/core/block.c39
1 files changed, 29 insertions, 10 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 6d2c42c1c33a..30fc012353ae 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -923,7 +923,8 @@ static int mmc_sd_num_wr_blocks(struct mmc_card *card, u32 *written_blocks)
}
static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
- bool hw_busy_detect, struct request *req, bool *gen_err)
+ bool hw_busy_detect, struct request *req,
+ u32 *resp_errs)
{
unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
int err = 0;
@@ -937,11 +938,9 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
return err;
}
- if (status & R1_ERROR) {
- pr_err("%s: %s: error sending status cmd, status %#x\n",
- req->rq_disk->disk_name, __func__, status);
- *gen_err = true;
- }
+ /* Accumulate any response error bits seen */
+ if (resp_errs)
+ *resp_errs |= status;
/* We may rely on the host hw to handle busy detection.*/
if ((card->host->caps & MMC_CAP_WAIT_WHILE_BUSY) &&
@@ -970,6 +969,24 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
return err;
}
+static int card_busy_detect_err(struct mmc_card *card, unsigned int timeout_ms,
+ bool hw_busy_detect, struct request *req,
+ bool *gen_err)
+{
+ u32 resp_errs = 0;
+ int err;
+
+ err = card_busy_detect(card, timeout_ms, hw_busy_detect, req,
+ &resp_errs);
+ if (resp_errs & R1_ERROR) {
+ pr_err("%s: %s: error sending status cmd, status %#x\n",
+ req->rq_disk->disk_name, __func__, resp_errs);
+ *gen_err = true;
+ }
+
+ return err;
+}
+
static int send_stop(struct mmc_card *card, unsigned int timeout_ms,
struct request *req, bool *gen_err, u32 *stop_status)
{
@@ -1012,7 +1029,8 @@ static int send_stop(struct mmc_card *card, unsigned int timeout_ms,
*gen_err = true;
}
- return card_busy_detect(card, timeout_ms, use_r1b_resp, req, gen_err);
+ return card_busy_detect_err(card, timeout_ms, use_r1b_resp, req,
+ gen_err);
}
#define ERR_NOMEDIUM 3
@@ -1553,8 +1571,8 @@ static enum mmc_blk_status __mmc_blk_err_check(struct mmc_card *card,
gen_err = true;
}
- err = card_busy_detect(card, MMC_BLK_TIMEOUT_MS, false, req,
- &gen_err);
+ err = card_busy_detect_err(card, MMC_BLK_TIMEOUT_MS, false, req,
+ &gen_err);
if (err)
return MMC_BLK_CMD_ERR;
}
@@ -2148,7 +2166,8 @@ static int mmc_blk_card_busy(struct mmc_card *card, struct request *req)
if (mmc_host_is_spi(card->host) || rq_data_dir(req) == READ)
return 0;
- err = card_busy_detect(card, MMC_BLK_TIMEOUT_MS, false, req, &gen_err);
+ err = card_busy_detect_err(card, MMC_BLK_TIMEOUT_MS, false, req,
+ &gen_err);
/* Copy the general error bit so it will be seen later on */
if (gen_err) {

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