[PATCH 1/6] mmc: sdhci-pltfm: Add structure for host-specific data
From: Wolfram Sang <hidden>
Date: 2010-09-29 20:07:59
Also in:
linux-mmc
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, secure digital host controller interface (sdhci) driver, the rest · Maintainers:
Ulf Hansson, Adrian Hunter, Linus Torvalds
We need to carry some information per host, e.g. the clock. Add a structure for it and initialize it in the generic part. Also do not use the parent of the platform_device (if it is available), this breaks the clock-matching on ARM. Signed-off-by: Wolfram Sang <redacted> Cc: Richard R?jfors <redacted> --- Changes since last version: * added types.h * removed usage of pdev->dev.parent to ensure clk-matching Please speak up if this has a use case I failed to see! drivers/mmc/host/sdhci-pltfm.c | 8 ++++---- drivers/mmc/host/sdhci-pltfm.h | 7 +++++++ 2 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index e045e3c..095ca9d 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c@@ -55,6 +55,7 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev) struct sdhci_pltfm_data *pdata = pdev->dev.platform_data; const struct platform_device_id *platid = platform_get_device_id(pdev); struct sdhci_host *host; + struct sdhci_pltfm_host *pltfm_host; struct resource *iomem; int ret;
@@ -71,16 +72,15 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Invalid iomem size. You may " "experience problems.\n"); - if (pdev->dev.parent) - host = sdhci_alloc_host(pdev->dev.parent, 0); - else - host = sdhci_alloc_host(&pdev->dev, 0); + host = sdhci_alloc_host(&pdev->dev, sizeof(*pltfm_host)); if (IS_ERR(host)) { ret = PTR_ERR(host); goto err; } + pltfm_host = sdhci_priv(host); + host->hw_name = "platform"; if (pdata && pdata->ops) host->ops = pdata->ops;
diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index 900f329..93a0319 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h@@ -11,8 +11,15 @@ #ifndef _DRIVERS_MMC_SDHCI_PLTFM_H #define _DRIVERS_MMC_SDHCI_PLTFM_H +#include <linux/clk.h> +#include <linux/types.h> #include <linux/sdhci-pltfm.h> +struct sdhci_pltfm_host { + struct clk *clk; + u32 scratchpad; /* to handle quirks across io-accessor calls */ +}; + extern struct sdhci_pltfm_data sdhci_cns3xxx_pdata; #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */
--
1.7.1