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mmc: only stop edmac if slot state really changed

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This commit follow up with 27dc823e, avoid unnecessary emdac operation
in routine card of bh.

Signed-off-by: lintao <lintao@rock-chips.com>
This commit is contained in:
lintao
2014-10-27 13:53:16 +08:00
parent 84a54e9455
commit 627a759e99
1 changed files with 4 additions and 5 deletions
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9
drivers/mmc/host/rk_sdmmc.c
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@@ -2965,11 +2965,6 @@ static void dw_mci_work_routine_card(struct work_struct *work)
present = dw_mci_get_cd(mmc);
/* Stop edma when rountine card triggered */
if(cpu_is_rk3036() || cpu_is_rk312x())
if(host->dma_ops && host->dma_ops->stop)
host->dma_ops->stop(host);
/* Card insert, switch data line to uart function, and vice verse.
* ONLY audi chip need switched by software, using udbg tag in dts!
*/
@@ -2992,6 +2987,10 @@ static void dw_mci_work_routine_card(struct work_struct *work)
present ? "inserted" : "removed.", mmc_hostname(mmc));
dw_mci_ctrl_all_reset(host);
/* Stop edma when rountine card triggered */
if(cpu_is_rk3036() || cpu_is_rk312x())
if(host->dma_ops && host->dma_ops->stop)
host->dma_ops->stop(host);
rk_send_wakeup_key();//wake up system
spin_lock_bh(&host->lock);