mmc: dw_mmc: add support for implementation specific callbacks
The core dw-mshc controller driver can let platform specific
implementations of the dw-mshc controller to control the hardware
as required by such implementations. This is acheived by invoking
implementation specific (optional) callbacks. Define the list of
callbacks supported the add invocation points for the same.
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 e17da91..c960ca7 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -23,7 +23,8 @@
#include "dw_mmc.h"
-int dw_mci_pltfm_register(struct platform_device *pdev)
+int dw_mci_pltfm_register(struct platform_device *pdev,
+ struct dw_mci_drv_data *drv_data)
{
struct dw_mci *host;
struct resource *regs;
@@ -41,6 +42,7 @@
if (host->irq < 0)
return host->irq;
+ host->drv_data = drv_data;
host->dev = &pdev->dev;
host->irq_flags = 0;
host->pdata = pdev->dev.platform_data;
@@ -48,6 +50,12 @@
if (!host->regs)
return -ENOMEM;
+ if (host->drv_data->init) {
+ ret = host->drv_data->init(host);
+ if (ret)
+ return ret;
+ }
+
platform_set_drvdata(pdev, host);
ret = dw_mci_probe(host);
return ret;
@@ -56,7 +64,7 @@
static int __devinit dw_mci_pltfm_probe(struct platform_device *pdev)
{
- return dw_mci_pltfm_register(pdev);
+ return dw_mci_pltfm_register(pdev, NULL);
}
static int __devexit dw_mci_pltfm_remove(struct platform_device *pdev)
