mmc: dw_mmc: prepare functions in dw_mmc-pltfm for reuse
Platform implementations of dw-mshc controller may choose to extend the
features of the standard dw-mshc controller such as adding additional
clocking options or modifying the bus interface. Support for such
implementation specific extensions can be incorporated into dw_mmc-pltfm,
but including multiple such platform specific implementations would
convolute the existing dw_mmc-pltfm code.
Instead, it would be better to create implementation specific platform
drivers to support implementation specific features. Such platforms
drivers can reuse the existing infrastructure in dw_mmc-pltfm for
resource identification and controller registration and provide support
for implementation specific features. So, allow the infrastructure in
dw_mmc-pltfm to be reused by other implementation specific platform
drivers.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index 7205905..e17da91 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -23,7 +23,7 @@
#include "dw_mmc.h"
-static int __devinit dw_mci_pltfm_probe(struct platform_device *pdev)
+int dw_mci_pltfm_register(struct platform_device *pdev)
{
struct dw_mci *host;
struct resource *regs;
@@ -52,6 +52,12 @@
ret = dw_mci_probe(host);
return ret;
}
+EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
+
+static int __devinit dw_mci_pltfm_probe(struct platform_device *pdev)
+{
+ return dw_mci_pltfm_register(pdev);
+}
static int __devexit dw_mci_pltfm_remove(struct platform_device *pdev)
{
@@ -61,6 +67,7 @@
dw_mci_remove(host);
return 0;
}
+EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
#ifdef CONFIG_PM_SLEEP
/*
@@ -94,7 +101,8 @@
#define dw_mci_pltfm_resume NULL
#endif /* CONFIG_PM_SLEEP */
-static SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume);
+SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume);
+EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
static const struct of_device_id dw_mci_pltfm_match[] = {
{ .compatible = "snps,dw-mshc", },
