From: Huang Changming-R66093 <r66093@freescale.com>
To: Huang Changming-R66093 <r66093@freescale.com>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>
Cc: Chris Ball <cjb@laptop.org>
Subject: RE: [PATCH 1/4 v3] MMC/core: Add f_min to mmc_power_on()
Date: Fri, 13 Jan 2012 02:24:46 +0000 [thread overview]
Message-ID: <8A2FC72B45BB5A4C9F801431E06AE48F116692B2@039-SN1MPN1-005.039d.mgd.msft.net> (raw)
In-Reply-To: <1323399230-29118-1-git-send-email-r66093@freescale.com>
Hi, Chris,
Could you have any comment about this patch?
Can it go into 3.3 or 3.4?
> -----Original Message-----
> From: Huang Changming-R66093
> Sent: Friday, December 09, 2011 10:54 AM
> To: linux-mmc@vger.kernel.org
> Cc: Huang Changming-R66093; Chris Ball
> Subject: [PATCH 1/4 v3] MMC/core: Add f_min to mmc_power_on()
>
> From: Jerry Huang <Chang-Ming.Huang@freescale.com>
>
> When f_init is zero, the SDHC can't work correctly. So f_min will replace
> f_init, when f_init is zero.
>
> Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
> CC: Chris Ball <cjb@laptop.org>
> ---
> changes for v2:
> - add the CC
> changes for v3:
> - enalbe the controller clock in platform, instead of core
>
> drivers/mmc/core/core.c | 5 ++++-
> 1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
> index a08e6b1..2d40c04 100644
> --- a/drivers/mmc/core/core.c
> +++ b/drivers/mmc/core/core.c
> @@ -1253,7 +1253,10 @@ static void mmc_power_up(struct mmc_host *host)
> */
> mmc_delay(10);
>
> - host->ios.clock = host->f_init;
> + if (host->f_init)
> + host->ios.clock = host->f_init;
> + else
> + host->ios.clock = host->f_min;
>
> host->ios.power_mode = MMC_POWER_ON;
> mmc_set_ios(host);
> --
> 1.7.5.4
next prev parent reply other threads:[~2012-01-13 2:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-09 2:53 [PATCH 1/4 v3] MMC/core: Add f_min to mmc_power_on() r66093
2011-12-09 2:53 ` [PATCH 2/4 v3] MMC/SD: Add callback function to detect card r66093
2011-12-09 2:53 ` [PATCH 3/4 v4] SDHCI: add sdhci_get_cd callback to detect the card r66093
2011-12-09 2:53 ` [PATCH 4/4 v3] ESDHC: add callback esdhc_of_get_cd to detect card r66093
2012-01-13 2:25 ` Huang Changming-R66093
2012-01-13 2:24 ` Huang Changming-R66093 [this message]
2012-01-13 3:26 ` [PATCH 1/4 v3] MMC/core: Add f_min to mmc_power_on() Aaron Lu
2012-01-13 3:39 ` Huang Changming-R66093
2012-01-13 6:32 ` Aaron Lu
2012-01-13 6:48 ` Huang Changming-R66093
2012-10-30 8:12 r66093
2012-10-30 23:08 ` Ulf Hansson
2012-10-31 2:23 ` Huang Changming-R66093
2012-10-31 4:21 ` Jaehoon Chung
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