* [PATCH 2/2] dw_mmc: Enable low-power mode for the card clock.
@ 2011-02-10 10:40 Will Newton
2011-02-10 19:44 ` Chris Ball
0 siblings, 1 reply; 3+ messages in thread
From: Will Newton @ 2011-02-10 10:40 UTC (permalink / raw)
To: linux-mmc, Chris Ball
Setting this bit in the clock enable register will stop the clock
when the card is in the IDLE state.
Signed-off-by: Will Newton <will.newton@imgtec.com>
---
drivers/mmc/host/dw_mmc.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0b0bedd..4cf560d 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -562,7 +562,8 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
/* enable clock */
- mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE);
+ mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE |
+ SDMMC_CLKEN_LOW_PWR);
/* inform CIU */
mci_send_cmd(slot,
--
1.7.3.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 2/2] dw_mmc: Enable low-power mode for the card clock.
2011-02-10 10:40 [PATCH 2/2] dw_mmc: Enable low-power mode for the card clock Will Newton
@ 2011-02-10 19:44 ` Chris Ball
0 siblings, 0 replies; 3+ messages in thread
From: Chris Ball @ 2011-02-10 19:44 UTC (permalink / raw)
To: Will Newton; +Cc: linux-mmc
Hi,
On Thu, Feb 10, 2011 at 10:40:57AM +0000, Will Newton wrote:
> Setting this bit in the clock enable register will stop the clock
> when the card is in the IDLE state.
>
> Signed-off-by: Will Newton <will.newton@imgtec.com>
> ---
> drivers/mmc/host/dw_mmc.c | 3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index 0b0bedd..4cf560d 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -562,7 +562,8 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
> SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
>
> /* enable clock */
> - mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE);
> + mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE |
> + SDMMC_CLKEN_LOW_PWR);
>
> /* inform CIU */
> mci_send_cmd(slot,
Pushed to mmc-next for .39, thanks.
--
Chris Ball <cjb@laptop.org> <http://printf.net/>
One Laptop Per Child
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH 2/2] dw_mmc: Enable low-power mode for the card clock.
@ 2011-02-04 11:17 Will Newton
0 siblings, 0 replies; 3+ messages in thread
From: Will Newton @ 2011-02-04 11:17 UTC (permalink / raw)
To: linux-mmc
[-- Attachment #1: Type: text/plain, Size: 746 bytes --]
Setting this bit in the clock enable register will stop the clock
when the card is in the IDLE state.
Signed-off-by: Will Newton <will.newton@imgtec.com>
---
drivers/mmc/host/dw_mmc.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0b0bedd..4cf560d 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -562,7 +562,8 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
/* enable clock */
- mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE);
+ mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE |
+ SDMMC_CLKEN_LOW_PWR);
/* inform CIU */
mci_send_cmd(slot,
--
1.7.3.4
[-- Attachment #2: 0002-dw_mmc-Enable-low-power-mode-for-the-card-clock.patch --]
[-- Type: text/x-patch, Size: 972 bytes --]
From af54e39992a23a5b6b6c853fede652b1df3be37f Mon Sep 17 00:00:00 2001
From: Will Newton <will.newton@imgtec.com>
Date: Thu, 3 Feb 2011 12:18:44 +0000
Subject: [PATCH 2/2] dw_mmc: Enable low-power mode for the card clock.
Setting this bit in the clock enable register will stop the clock
when the card is in the IDLE state.
Signed-off-by: Will Newton <will.newton@imgtec.com>
---
drivers/mmc/host/dw_mmc.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0b0bedd..4cf560d 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -562,7 +562,8 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
/* enable clock */
- mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE);
+ mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE |
+ SDMMC_CLKEN_LOW_PWR);
/* inform CIU */
mci_send_cmd(slot,
--
1.7.3.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-02-10 19:44 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-02-10 10:40 [PATCH 2/2] dw_mmc: Enable low-power mode for the card clock Will Newton
2011-02-10 19:44 ` Chris Ball
-- strict thread matches above, loose matches on Subject: below --
2011-02-04 11:17 Will Newton
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox