usb: musb: pass configuration specifics via pdata

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>

1 files changed, 33 insertions, 5 deletions

diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index d325a0d..630962c 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -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;
 };