From: Chris Ball <cjb@laptop.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
spear-devel@list.st.com,
Vipul Kumar Samar <vipulkumar.samar@st.com>
Subject: Re: [PATCH 1/2] mmc: sdhci-spear: Initialize sdhci clk to 50 MHz
Date: Mon, 26 Nov 2012 10:09:01 -0500 [thread overview]
Message-ID: <87obik9zaq.fsf@octavius.laptop.org> (raw)
In-Reply-To: <fd576f198e6f3dc4031bb905247ed9c0a0b66a20.1352387305.git.viresh.kumar@linaro.org> (Viresh Kumar's message of "Thu, 8 Nov 2012 20:39:09 +0530")
Hi,
On Thu, Nov 08 2012, Viresh Kumar wrote:
> From: Vipul Kumar Samar <vipulkumar.samar@st.com>
>
> SPEAr sdhci driver expects the clock to be set to 50 MHz for proper functioning.
> This patch sets clk to 50 MHz in probe.
>
> Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
> ---
> drivers/mmc/host/sdhci-spear.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
> index 6be89c0..fea8bf9 100644
> --- a/drivers/mmc/host/sdhci-spear.c
> +++ b/drivers/mmc/host/sdhci-spear.c
> @@ -146,6 +146,11 @@ static int __devinit sdhci_probe(struct platform_device *pdev)
> goto put_clk;
> }
>
> + ret = clk_set_rate(sdhci->clk, 50000000);
> + if (ret)
> + dev_dbg(&pdev->dev, "Error setting desired clk, clk=%lu\n",
> + clk_get_rate(sdhci->clk));
> +
> if (np) {
> sdhci->data = sdhci_probe_config_dt(pdev);
> if (IS_ERR(sdhci->data)) {
Can I change this to a dev_err()? No-one's going to see a dev_dbg().
Thanks,
- Chris.
--
Chris Ball <cjb@laptop.org> <http://printf.net/>
One Laptop Per Child
next prev parent reply other threads:[~2012-11-26 15:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-08 15:09 [PATCH 1/2] mmc: sdhci-spear: Initialize sdhci clk to 50 MHz Viresh Kumar
2012-11-08 15:09 ` [PATCH 2/2] mmc: sdhci-spear: Don't call clk_{un}prepare() in suspend resume Viresh Kumar
2012-11-26 15:45 ` Chris Ball
2012-11-20 6:41 ` [PATCH 1/2] mmc: sdhci-spear: Initialize sdhci clk to 50 MHz Viresh Kumar
2012-11-26 15:04 ` Viresh Kumar
2012-11-26 15:09 ` Chris Ball [this message]
2012-11-26 15:10 ` Viresh Kumar
2012-11-26 15:44 ` Chris Ball
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