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usb: musb: pass configuration specifics via pdata

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Use platform_data to pass musb configuration-specific
details to musb driver.

This patch will prevent that other platforms selecting
HAVE_CLK and enabling musb won't break tree building.

The other parts of it will come when linux-omap merge
up more omap2/3 board-files.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Felipe Balbi 2008-08-08 12:40:54 +03:00 • committed by Greg Kroah-Hartman
parent f362a47560
commit ca6d1b1333
5 changed files with 51 additions and 208 deletions
Download patch file Download diff file Expand all files Collapse all files

38
include/linux/usb/musb.h
View file

@ -19,6 +19,36 @@ enum musb_mode {
struct clk;
struct musb_hdrc_eps_bits {
const char name[16];
u8 bits;
};
struct musb_hdrc_config {
/* MUSB configuration-specific details */
unsigned multipoint:1; /* multipoint device */
unsigned dyn_fifo:1; /* supports dynamic fifo sizing */
unsigned soft_con:1; /* soft connect required */
unsigned utm_16:1; /* utm data witdh is 16 bits */
unsigned big_endian:1; /* true if CPU uses big-endian */
unsigned mult_bulk_tx:1; /* Tx ep required for multbulk pkts */
unsigned mult_bulk_rx:1; /* Rx ep required for multbulk pkts */
unsigned high_iso_tx:1; /* Tx ep required for HB iso */
unsigned high_iso_rx:1; /* Rx ep required for HD iso */
unsigned dma:1; /* supports DMA */
unsigned vendor_req:1; /* vendor registers required */
u8 num_eps; /* number of endpoints _with_ ep0 */
u8 dma_channels; /* number of dma channels */
u8 dyn_fifo_size; /* dynamic size in bytes */
u8 vendor_ctrl; /* vendor control reg width */
u8 vendor_stat; /* vendor status reg witdh */
u8 dma_req_chan; /* bitmask for required dma channels */
u8 ram_bits; /* ram address size */
struct musb_hdrc_eps_bits *eps_bits;
};
struct musb_hdrc_platform_data {
/* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
u8 mode;
@ -38,16 +68,14 @@ struct musb_hdrc_platform_data {
/* (HOST or OTG) msec/2 after VBUS on till power good */
u8 potpgt;
/* TBD: chip defaults should probably go someplace else,
* e.g. number of tx/rx endpoints, etc
*/
unsigned multipoint:1;
/* Power the device on or off */
int (*set_power)(int state);
/* Turn device clock on or off */
int (*set_clock)(struct clk *clock, int is_on);
/* MUSB configuration-specific details */
struct musb_hdrc_config *config;
};