joel16/android_kernel_sony_msm8994_rework
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tifm_sd: remove wait for power off on remove

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This wait was needed because of the mmc layer failure to wait for completion
of all outstanding commands before host removal. It should be fixed now in
the mmc layer.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Alex Dubov 2007-04-12 16:59:22 +10:00 committed by Pierre Ossman
parent b039d4a187
commit 592d372ae8
1 changed files with 11 additions and 16 deletions
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27
drivers/mmc/tifm_sd.c
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@ -80,7 +80,6 @@ typedef enum {
enum {
FIFO_RDY = 0x0001, /* hardware dependent value */
EJECT = 0x0004,
EJECT_DONE = 0x0008,
CARD_BUSY = 0x0010,
OPENDRAIN = 0x0040, /* hardware dependent value */
CARD_EVENT = 0x0100, /* hardware dependent value */
@ -99,7 +98,6 @@ struct tifm_sd {
struct tasklet_struct finish_tasklet;
struct timer_list timer;
struct mmc_request *req;
wait_queue_head_t notify;
size_t written_blocks;
size_t buffer_size;
@ -738,12 +736,6 @@ static void tifm_sd_ios(struct mmc_host *mmc, struct mmc_ios *ios)
/* chip_select : maybe later */
//vdd
//power is set before probe / after remove
//I believe, power_off when already marked for eject is sufficient to
// allow removal.
if ((host->flags & EJECT) && ios->power_mode == MMC_POWER_OFF) {
host->flags |= EJECT_DONE;
wake_up_all(&host->notify);
}
spin_unlock_irqrestore(&sock->lock, flags);
}
@ -854,7 +846,6 @@ static int tifm_sd_probe(struct tifm_dev *sock)
host->dev = sock;
host->timeout_jiffies = msecs_to_jiffies(1000);
init_waitqueue_head(&host->notify);
tasklet_init(&host->finish_tasklet,
no_dma ? tifm_sd_end_cmd_nodma : tifm_sd_end_cmd,
(unsigned long)host);
@ -896,28 +887,32 @@ static void tifm_sd_remove(struct tifm_dev *sock)
struct tifm_sd *host = mmc_priv(mmc);
unsigned long flags;
del_timer_sync(&host->timer);
writel(0, sock->addr + SOCK_MMCSD_INT_ENABLE);
mmiowb();
spin_lock_irqsave(&sock->lock, flags);
host->flags |= EJECT;
writel(0, sock->addr + SOCK_MMCSD_INT_ENABLE);
mmiowb();
spin_unlock_irqrestore(&sock->lock, flags);
tasklet_kill(&host->finish_tasklet);
spin_lock_irqsave(&sock->lock, flags);
if (host->req) {
writel(TIFM_FIFO_INT_SETALL,
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR);
writel(0, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET);
host->req->cmd->error = MMC_ERR_TIMEOUT;
if (host->req->stop)
host->req->stop->error = MMC_ERR_TIMEOUT;
tasklet_schedule(&host->finish_tasklet);
}
spin_unlock_irqrestore(&sock->lock, flags);
wait_event_timeout(host->notify, host->flags & EJECT_DONE,
host->timeout_jiffies);
tasklet_kill(&host->finish_tasklet);
mmc_remove_host(mmc);
dev_dbg(&sock->dev, "after remove\n");
/* The meaning of the bit majority in this constant is unknown. */
writel(0xfff8 & readl(sock->addr + SOCK_CONTROL),
sock->addr + SOCK_CONTROL);
tifm_set_drvdata(sock, NULL);
mmc_free_host(mmc);
}