On Mon, Oct 07, 2013 at 02:32:24PM -0300, Fabio Estevam wrote:
> According to Documentation/devicetree/bindings/mmc/mmc.txt:
>
> "Card detection:
> If no property below is supplied, host native card detect is used.
> Only one of the properties in this section should be supplied:
> - broken-cd: There is no card detection available; polling must be used.
> - cd-gpios: Specify GPIOs for card detection, see gpio binding
> - non-removable: non-removable slot (like eMMC); assume always present. "
>
> So remove the custom fsl,cd-controller and fsl,wp-controller properties, as the
> mmc core can take care of it.
>
> Tested on mx51babbage, mx53qsb boards and mx6qsabresd boards.
>
> Cc: Chris Ball <cjb@xxxxxxxxxx>
> Cc: <linux-mmc@xxxxxxxxxxxxxxx>
> Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 6 ------
> drivers/mmc/host/sdhci-esdhc-imx.c | 6 ------
> 2 files changed, 12 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
> index 1dd6225..5da8ab0 100644
> --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
> +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
> @@ -9,18 +9,12 @@ by mmc.txt and the properties used by the sdhci-esdhc-imx driver.
> Required properties:
> - compatible : Should be "fsl,<chip>-esdhc"
>
> -Optional properties:
> -- fsl,cd-controller : Indicate to use controller internal card detection
> -- fsl,wp-controller : Indicate to use controller internal write protection
> -
> Examples:
>
> esdhc@70004000 {
> compatible = "fsl,imx51-esdhc";
> reg = <0x70004000 0x4000>;
> interrupts = <1>;
> - fsl,cd-controller;
> - fsl,wp-controller;
> };
>
> esdhc@70008000 {
> diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
> index b9899e9..07662d1 100644
> --- a/drivers/mmc/host/sdhci-esdhc-imx.c
> +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
> @@ -796,12 +796,6 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
> if (of_get_property(np, "non-removable", NULL))
> boarddata->cd_type = ESDHC_CD_PERMANENT;
>
> - if (of_get_property(np, "fsl,cd-controller", NULL))
> - boarddata->cd_type = ESDHC_CD_CONTROLLER;
Without this removed, flag SDHCI_QUIRK_BROKEN_CARD_DETECTION will be
kept for the host controller. Consequently, MMC_CAP_NEEDS_POLL is set,
and we will use polling for card-detection.
Shawn
> -
> - if (of_get_property(np, "fsl,wp-controller", NULL))
> - boarddata->wp_type = ESDHC_WP_CONTROLLER;
> -
> boarddata->cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
> if (gpio_is_valid(boarddata->cd_gpio))
> boarddata->cd_type = ESDHC_CD_GPIO;
> --
> 1.8.1.2
>
>
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