sdhci-pltfm: implement platform data passing

This includes platform ops, quirks and (de)initialization callbacks.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Richard Röjfors <richard.rojfors@pelagicore.com>
Cc: David Vrabel <david.vrabel@csr.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 20 insertions, 4 deletions

diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 297f40ae6ad5..217b911a2635 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -29,6 +29,7 @@
 #include <linux/mmc/host.h>
 
 #include <linux/io.h>
+#include <linux/sdhci-pltfm.h>
 
 #include "sdhci.h"
 
@@ -49,12 +50,11 @@ static struct sdhci_ops sdhci_pltfm_ops = {
 
 static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
 {
+        struct sdhci_pltfm_data *pdata = pdev->dev.platform_data;
         struct sdhci_host *host;
         struct resource *iomem;
         int ret;
 
-        BUG_ON(pdev == NULL);
-
         iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!iomem) {
                 ret = -ENOMEM;
@@ -76,7 +76,12 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
         }
 
         host->hw_name = "platform";
-        host->ops = &sdhci_pltfm_ops;
+        if (pdata && pdata->ops)
+                host->ops = pdata->ops;
+        else
+                host->ops = &sdhci_pltfm_ops;
+        if (pdata)
+                host->quirks = pdata->quirks;
         host->irq = platform_get_irq(pdev, 0);
 
         if (!request_mem_region(iomem->start, resource_size(iomem),
@@ -93,6 +98,12 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
                 goto err_remap;
         }
 
+        if (pdata && pdata->init) {
+                ret = pdata->init(host);
+                if (ret)
+                        goto err_plat_init;
+        }
+
         ret = sdhci_add_host(host);
         if (ret)
                 goto err_add_host;
@@ -102,6 +113,9 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
         return 0;
 
 err_add_host:
+        if (pdata && pdata->exit)
+                pdata->exit(host);
+err_plat_init:
         iounmap(host->ioaddr);
 err_remap:
         release_mem_region(iomem->start, resource_size(iomem));
@@ -114,6 +128,7 @@ err:
 
 static int __devexit sdhci_pltfm_remove(struct platform_device *pdev)
 {
+        struct sdhci_pltfm_data *pdata = pdev->dev.platform_data;
         struct sdhci_host *host = platform_get_drvdata(pdev);
         struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         int dead;
@@ -125,6 +140,8 @@ static int __devexit sdhci_pltfm_remove(struct platform_device *pdev)
                 dead = 1;
 
         sdhci_remove_host(host, dead);
+        if (pdata && pdata->exit)
+                pdata->exit(host);
         iounmap(host->ioaddr);
         release_mem_region(iomem->start, resource_size(iomem));
         sdhci_free_host(host);
@@ -165,4 +182,3 @@ MODULE_DESCRIPTION("Secure Digital Host Controller Interface platform driver");
 MODULE_AUTHOR("Mocean Laboratories <info@mocean-labs.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:sdhci");
-