On Fri, Jul 15, 2011 at 05:12:06PM +0530, Thomas Abraham wrote:
> Add of_match_table to enable sdhci-s3c driver to be probed when a compatible
> sdhci device node is found in device tree.
>
> CC: linux-mmc@xxxxxxxxxxxxxxx
> Signed-off-by: Thomas Abraham <thomas.abraham@xxxxxxxxxx>
> ---
> .../devicetree/bindings/mmc/samsung-s3c-sdhci.txt | 10 ++++++++++
> drivers/mmc/host/sdhci-s3c.c | 11 +++++++++++
> 2 files changed, 21 insertions(+), 0 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/mmc/samsung-s3c-sdhci.txt
>
> diff --git a/Documentation/devicetree/bindings/mmc/samsung-s3c-sdhci.txt b/Documentation/devicetree/bindings/mmc/samsung-s3c-sdhci.txt
> new file mode 100644
> index 0000000..c2298f8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/samsung-s3c-sdhci.txt
> @@ -0,0 +1,10 @@
> +* Samsung's SDHCI controller
> +
> +The Samsung's SDHCI controller is used for interfacing with SD/MMC cards.
> +
> +Required properties:
> +- compatible : should be "samsung,s3c-sdhci"
> +- reg : base physical address of the controller and length of memory mapped
> + region.
> +- interrupts : interrupt number to the cpu.
> +
> diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
> index 69e3ee3..5ccbee0 100644
> --- a/drivers/mmc/host/sdhci-s3c.c
> +++ b/drivers/mmc/host/sdhci-s3c.c
> @@ -629,6 +629,16 @@ static int sdhci_s3c_resume(struct platform_device *dev)
> #define sdhci_s3c_resume NULL
> #endif
>
> +#ifdef CONFIG_OF
> +static const struct of_device_id s3c_sdhci_match[] = {
> + { .compatible = "samsung,s3c-sdhci" },
Be specific. samsung,exynos4210-sdhci. Newer chips can claim
compatibility with the older one.
Otherwise,
Acked-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, s3c_sdhci_match);
> +#else
> +#define s3c_sdhci_match NULL
> +#endif
> +
> static struct platform_driver sdhci_s3c_driver = {
> .probe = sdhci_s3c_probe,
> .remove = __devexit_p(sdhci_s3c_remove),
> @@ -637,6 +647,7 @@ static struct platform_driver sdhci_s3c_driver = {
> .driver = {
> .owner = THIS_MODULE,
> .name = "s3c-sdhci",
> + .of_match_table = s3c_sdhci_match,
> },
> };
>
> --
> 1.7.1
>
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