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mmc: Add structure comments for dwmmc 

It took a little while to figure this out, so this patch adds documentation
to help the next person who needs to do this.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-06-23 15:38:52 -06:00
parent dc3dedfeb1
commit 6dc714102b
1 changed files with 17 additions and 1 deletions
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18
include/dwmmc.h
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@ -129,8 +129,24 @@
/* quirks */ /* quirks */
#define DWMCI_QUIRK_DISABLE_SMU (1 << 0) #define DWMCI_QUIRK_DISABLE_SMU (1 << 0)
/**
* struct dwmci_host - Information about a designware MMC host
*
* @name: Device name
* @ioaddr: Base I/O address of controller
* @quirks: Quick flags - see DWMCI_QUIRK_...
* @caps: Capabilities - see MMC_MODE_...
* @bus_hz: Bus speed in Hz, if @get_mmc_clk() is NULL
* @div: Arbitrary clock divider value for use by controller
* @dev_index: Arbitrary device index for use by controller
* @dev_id: Arbitrary device ID for use by controller
* @buswidth: Bus width in bits (8 or 4)
* @fifoth_val: Value for FIFOTH register (or 0 to leave unset)
* @mmc: Pointer to generic MMC structure for this device
* @priv: Private pointer for use by controller
*/
struct dwmci_host { struct dwmci_host {
char *name; const char *name;
void *ioaddr; void *ioaddr;
unsigned int quirks; unsigned int quirks;
unsigned int caps; unsigned int caps;