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mmc: dw_mmc: add support for implementation specific callbacks

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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>
This commit is contained in:
Thomas Abraham
2012-09-17 18:16:42 +00:00
committed by Chris Ball
parent 17403f235e
commit 800d78bfcc
5 changed files with 86 additions and 4 deletions
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4
include/linux/mmc/dw_mmc.h
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@@ -78,6 +78,8 @@ struct mmc_data;
* @data_offset: Set the offset of DATA register according to VERID.
* @dev: Device associated with the MMC controller.
* @pdata: Platform data associated with the MMC controller.
* @drv_data: Driver specific data for identified variant of the controller
* @priv: Implementation defined private data.
* @biu_clk: Pointer to bus interface unit clock instance.
* @ciu_clk: Pointer to card interface unit clock instance.
* @slot: Slots sharing this MMC controller.
@@ -160,6 +162,8 @@ struct dw_mci {
u16 data_offset;
struct device *dev;
struct dw_mci_board *pdata;
struct dw_mci_drv_data *drv_data;
void *priv;
struct clk *biu_clk;
struct clk *ciu_clk;
struct dw_mci_slot *slot[MAX_MCI_SLOTS];