diff options
| author | Jaehoon Chung <jh80.chung@samsung.com> | 2012-03-12 03:57:27 +0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-03-27 20:20:12 +0400 |
| commit | 2378975bd5ed583da555c7e5dee121663b7d5f46 (patch) | |
| tree | a559ad5e1319701473139280a0dded127c8a8a37 /drivers/mmc/core/mmc_ops.c | |
| parent | ee698f503442741ca394d55c77b61c9080537686 (diff) | |
| download | linux-2378975bd5ed583da555c7e5dee121663b7d5f46.tar.xz | |
mmc: core: warn when card doesn't support HPI
Someone could use send_hpi_cmd() on a card that doesn't advertise support
for HPI. Then maybe didn't work fine. Because card->ext_csd.hpi_cmd
didn't set. So if card didn't support hpi, return the warning message.
And CMD12's flags is MMC_RSP_R1B.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/core/mmc_ops.c')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 4d41fa984c93..69370f494e05 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -553,18 +553,22 @@ int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status) { struct mmc_command cmd = {0}; unsigned int opcode; - unsigned int flags; int err; + if (!card->ext_csd.hpi) { + pr_warning("%s: Card didn't support HPI command\n", + mmc_hostname(card->host)); + return -EINVAL; + } + opcode = card->ext_csd.hpi_cmd; if (opcode == MMC_STOP_TRANSMISSION) - flags = MMC_RSP_R1 | MMC_CMD_AC; + cmd.flags = MMC_RSP_R1B | MMC_CMD_AC; else if (opcode == MMC_SEND_STATUS) - flags = MMC_RSP_R1 | MMC_CMD_AC; + cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; cmd.opcode = opcode; cmd.arg = card->rca << 16 | 1; - cmd.flags = flags; cmd.cmd_timeout_ms = card->ext_csd.out_of_int_time; err = mmc_wait_for_cmd(card->host, &cmd, 0); |