mmc: dw-mmc: control the power-enable register

PATCH In review Jaehoon Chung 4 participants 5 messages Mar 26, 2013 – Apr 5, 2013

Subsystems (2)

MMC, SD and SDIO Synopsys DesignWare MMC/SD/SDIO driver

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Jaehoon Chung

author maintainer

2013-03-26 12:36 UTC #0 lore raw

PATCH 1/1 mmc: dw-mmc: control the power-enable register

When card is power-on/off, need to control the power-enable register.

Signed-off-by Jaehoon Chung <[email protected]>

Signed-off-by Kyungmin Park <[email protected]>

---
 drivers/mmc/host/dw_mmc.c |    6 ++++++
 1 file changed, 6 insertions(+)

drivers/mmc/host/dw_mmc.c +6 -0

index a443820..a32aab5 100644
@@ -821,11 +821,17 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		/* Power up slot */
 		if (slot->host->pdata->setpower)
 			slot->host->pdata->setpower(slot->id, mmc->ocr_avail);
+		regs = mci_readl(slot->host, PWREN);
+		regs |= (1 << slot->id);
+		mci_writel(slot->host, PWREN, regs);
 		break;
 	case MMC_POWER_OFF:
 		/* Power down slot */
 		if (slot->host->pdata->setpower)
 			slot->host->pdata->setpower(slot->id, 0);
+		regs = mci_readl(slot->host, PWREN);
+		regs &= ~(1 << slot->id);
+		mci_writel(slot->host, PWREN, regs);
 		break;
 	default:
 		break;

Signature · 1 line

1.7.9.5

James Hogan

Reviewed-by on v1 1/1

2013-03-27 14:48 UTC #1 lore raw

Quoted 4 lines · Jaehoon Chung

When card is power-on/off, need to control the power-enable register.
Signed-off-by Jaehoon Chung <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>

Reviewed-by James Hogan <[email protected]>

Cheers
James

Seungwon Jeon

Acked-by

2013-04-04 05:47 UTC #2 lore raw

Quoted 7 lines · James Hogan

Quoted 4 lines · Jaehoon Chung
When card is power-on/off, need to control the power-enable register.
Signed-off-by Jaehoon Chung <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>
Reviewed-by James Hogan <[email protected]>

Acked-by Seungwon Jeon <[email protected]>

Thanks,
Seungwon Jeon

Chris Ball

2013-04-04 14:09 UTC #3 lore raw

Hi,

Quoted 9 lines · Seungwon Jeon

Quoted 7 lines · James Hogan
Quoted 4 lines · Jaehoon Chung
When card is power-on/off, need to control the power-enable register.
Signed-off-by Jaehoon Chung <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>
Reviewed-by James Hogan <[email protected]>
Acked-by Seungwon Jeon <[email protected]>

Thanks, pushed to mmc-next for 3.10 after changing "dw-mmc" to "dw_mmc" in the commit subject line.

- Chris.

Signature · 2 lines

Chris Ball   <[email protected]>   <http://printf.net/>
One Laptop Per Child

Jaehoon Chung

author maintainer

2013-04-05 03:27 UTC #4 lore raw

Thanks Chris..

I will send the patch as "dw_mmc" in future.

Best Regards,
Jaehoon Chung

Quoted 18 lines · Chris Ball

Hi,
Quoted 9 lines · Seungwon Jeon
Quoted 7 lines · James Hogan
Quoted 4 lines · Jaehoon Chung
When card is power-on/off, need to control the power-enable register.
Signed-off-by Jaehoon Chung <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>
Reviewed-by James Hogan <[email protected]>
Acked-by Seungwon Jeon <[email protected]>
Thanks, pushed to mmc-next for 3.10 after changing "dw-mmc" to "dw_mmc" in the commit subject line.
- Chris.