Hi,
On Thu, Jul 05 2012, Sebastian Hesselbarth wrote:
> As mach-dove is moving towards common clock framework prepare
> the sdhci driver to grab it's clock.
>
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxxxxxxx>
> Cc: Chris Ball <cjb@xxxxxxxxxx>
> Cc: Anton Vorontsov <cbouatmailru@xxxxxxxxx>
> Cc: Shawn Guo <shawn.guo@xxxxxxxxxx>
> Cc: Viresh Kumar <viresh.kumar@xxxxxx>
> Cc: Manuel Lauss <manuel.lauss@xxxxxxxxxxxxxx>
> Cc: linux-mmc@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> ---
> drivers/mmc/host/sdhci-dove.c | 48 ++++++++++++++++++++++++++++++++++++++++-
> 1 file changed, 47 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
> index 9c85368..a6e53a1 100644
> --- a/drivers/mmc/host/sdhci-dove.c
> +++ b/drivers/mmc/host/sdhci-dove.c
> @@ -20,11 +20,17 @@
> */
>
> #include <linux/io.h>
> +#include <linux/clk.h>
> +#include <linux/err.h>
> #include <linux/module.h>
> #include <linux/mmc/host.h>
>
> #include "sdhci-pltfm.h"
>
> +struct sdhci_dove_priv {
> + struct clk *clk;
> +};
> +
> static u16 sdhci_dove_readw(struct sdhci_host *host, int reg)
> {
> u16 ret;
> @@ -72,11 +78,51 @@ static struct sdhci_pltfm_data sdhci_dove_pdata = {
>
> static int __devinit sdhci_dove_probe(struct platform_device *pdev)
> {
> - return sdhci_pltfm_register(pdev, &sdhci_dove_pdata);
> + struct sdhci_host *host;
> + struct sdhci_pltfm_host *pltfm_host;
> + struct sdhci_dove_priv *priv;
> + int ret;
> +
> + ret = sdhci_pltfm_register(pdev, &sdhci_dove_pdata);
> + if (ret)
> + goto sdhci_dove_register_fail;
> +
> + priv = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_dove_priv),
> + GFP_KERNEL);
> + if (!priv) {
> + dev_err(&pdev->dev, "unable to allocate private data");
> + ret = -ENOMEM;
> + goto sdhci_dove_allocate_fail;
> + }
> +
> + host = platform_get_drvdata(pdev);
> + pltfm_host = sdhci_priv(host);
> + pltfm_host->priv = priv;
> +
> + priv->clk = clk_get(&pdev->dev, NULL);
> + if (!IS_ERR(priv->clk))
> + clk_prepare_enable(priv->clk);
> + return 0;
> +
> +sdhci_dove_allocate_fail:
> + sdhci_pltfm_unregister(pdev);
> +sdhci_dove_register_fail:
> + return ret;
> }
>
> static int __devexit sdhci_dove_remove(struct platform_device *pdev)
> {
> + struct sdhci_host *host = platform_get_drvdata(pdev);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + struct sdhci_dove_priv *priv = pltfm_host->priv;
> +
> + if (priv->clk) {
> + if (!IS_ERR(priv->clk)) {
> + clk_disable_unprepare(priv->clk);
> + clk_put(priv->clk);
> + }
> + devm_kfree(&pdev->dev, priv->clk);
> + }
> return sdhci_pltfm_unregister(pdev);
> }
Thanks, pushed to mmc-next for 3.6.
- Chris.
--
Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/>
One Laptop Per Child
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