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author | Pierre Ossman <drzeus@drzeus.cx> | 2007-07-11 20:22:11 +0200 |
---|---|---|
committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-07-26 01:53:39 +0200 |
commit | 67a61c484735de9bf4f099830ecb4ef2eca95c38 (patch) | |
tree | cd6f56cfb6ea66ba20d7538aa9e2c8d3e9280b8c /drivers/mmc | |
parent | 70f10482c668301c483acded13bf68780ad352b9 (diff) | |
download | kernel_samsung_smdk4412-67a61c484735de9bf4f099830ecb4ef2eca95c38.zip kernel_samsung_smdk4412-67a61c484735de9bf4f099830ecb4ef2eca95c38.tar.gz kernel_samsung_smdk4412-67a61c484735de9bf4f099830ecb4ef2eca95c38.tar.bz2 |
mmc: update kerneldoc
Make sure the kerneldoc comments are up to date and relevant.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc')
-rw-r--r-- | drivers/mmc/core/core.c | 31 | ||||
-rw-r--r-- | drivers/mmc/core/host.c | 7 | ||||
-rw-r--r-- | drivers/mmc/core/sd_ops.c | 2 |
3 files changed, 26 insertions, 14 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index b5d8a6d..e08aa35 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -140,7 +140,16 @@ static void mmc_wait_done(struct mmc_request *mrq) complete(mrq->done_data); } -int mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq) +/** + * mmc_wait_for_req - start a request and wait for completion + * @host: MMC host to start command + * @mrq: MMC request to start + * + * Start a new MMC custom command request for a host, and wait + * for the command to complete. Does not attempt to parse the + * response. + */ +void mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq) { DECLARE_COMPLETION_ONSTACK(complete); @@ -150,8 +159,6 @@ int mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq) mmc_start_request(host, mrq); wait_for_completion(&complete); - - return 0; } EXPORT_SYMBOL(mmc_wait_for_req); @@ -192,6 +199,9 @@ EXPORT_SYMBOL(mmc_wait_for_cmd); * @data: data phase for command * @card: the MMC card associated with the data transfer * @write: flag to differentiate reads from writes + * + * Computes the data timeout parameters according to the + * correct algorithm given the card type. */ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card, int write) @@ -240,15 +250,10 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card, EXPORT_SYMBOL(mmc_set_data_timeout); /** - * __mmc_claim_host - exclusively claim a host + * mmc_claim_host - exclusively claim a host * @host: mmc host to claim - * @card: mmc card to claim host for - * - * Claim a host for a set of operations. If a valid card - * is passed and this wasn't the last card selected, select - * the card before returning. * - * Note: you should use mmc_card_claim_host or mmc_claim_host. + * Claim a host for a set of operations. */ void mmc_claim_host(struct mmc_host *host) { @@ -498,8 +503,10 @@ void __mmc_release_bus(struct mmc_host *host) * @host: host which changed state. * @delay: optional delay to wait before detection (jiffies) * - * All we know is that card(s) have been inserted or removed - * from the socket(s). We don't know which socket or cards. + * MMC drivers should call this when they detect a card has been + * inserted or removed. The MMC layer will confirm that any + * present card is still functional, and initialize any newly + * inserted. */ void mmc_detect_change(struct mmc_host *host, unsigned long delay) { diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 1433d95..6a7e298 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -93,6 +93,10 @@ EXPORT_SYMBOL(mmc_alloc_host); /** * mmc_add_host - initialise host hardware * @host: mmc host + * + * Register the host with the driver model. The host must be + * prepared to start servicing requests before this function + * completes. */ int mmc_add_host(struct mmc_host *host) { @@ -126,7 +130,8 @@ EXPORT_SYMBOL(mmc_add_host); * @host: mmc host * * Unregister and remove all cards associated with this host, - * and power down the MMC bus. + * and power down the MMC bus. No new requests will be issued + * after this function has returned. */ void mmc_remove_host(struct mmc_host *host) { diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c index 848b5f5..ee9a1b9 100644 --- a/drivers/mmc/core/sd_ops.c +++ b/drivers/mmc/core/sd_ops.c @@ -25,7 +25,7 @@ * mmc_wait_for_app_cmd - start an application command and wait for completion * @host: MMC host to start command - * @rca: RCA to send MMC_APP_CMD to + * @card: Card to send MMC_APP_CMD to * @cmd: MMC command to start * @retries: maximum number of retries * |