Re: [PATCH 4/5] mmc: sdhci: consolidate sdhci-of-esdhc andsdhci-esdhc-imx
From: Grant Likely
Date: Thu Mar 31 2011 - 11:53:20 EST
On Fri, Mar 25, 2011 at 04:48:50PM +0800, Shawn Guo wrote:
> This patch is to consolidate SDHCI driver for Freescale eSDHC
> controller found on both MPCxxx and i.MX platforms. It turns
> sdhci-of-esdhc.c and sdhci-esdhc-imx.c into one sdhci-esdhc.c,
> which gets the same pair of .probe and .remove serving two cases.
>
> Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
> ---
> drivers/mmc/host/Kconfig | 38 ++--
> drivers/mmc/host/Makefile | 3 +-
> drivers/mmc/host/sdhci-esdhc-imx.c | 210 ------------------
> drivers/mmc/host/sdhci-esdhc.c | 413 ++++++++++++++++++++++++++++++++++++
> drivers/mmc/host/sdhci-of-esdhc.c | 162 --------------
This patch would be easier to review if it was split into two patches;
first rename sdhci-esdhc-imx.c to sdhci-esdhc.c without any changes to
the .c code, and then a second patch to merge the ppc bits into the
imx version.
> +#if defined(CONFIG_OF)
> +#include <linux/of_device.h>
> +static const struct of_device_id sdhci_esdhc_dt_ids[] = {
> +#ifdef CONFIG_MMC_SDHCI_ESDHC_IMX
> + { .compatible = "fsl,imx-esdhc", .data = &sdhci_esdhc_imx_pdata },
> +#endif
> +#ifdef CONFIG_MMC_SDHCI_ESDHC_MPC
> + { .compatible = "fsl,mpc8379-esdhc", .data = &sdhci_esdhc_mpc_pdata },
> + { .compatible = "fsl,mpc8536-esdhc", .data = &sdhci_esdhc_mpc_pdata },
> + { .compatible = "fsl,esdhc", .data = &sdhci_esdhc_mpc_pdata },
> +#endif
> + { }
> +};
> +MODULE_DEVICE_TABLE(platform, sdhci_esdhc_dt_ids);
> +
> +static const struct of_device_id *
> +sdhci_esdhc_get_of_device_id(struct platform_device *pdev)
> +{
> + return of_match_device(sdhci_esdhc_dt_ids, &pdev->dev);
You can add an empty implementation of of_match_device() to
linux/of_device.h. That would eliminate the need for this function.
g.
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