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8e0285ab95
The TUSB6010 (MUSB) device is picking up some GPIO lines
hardcoded by number and passing on to the TUSB6010 device
when registering it.
Instead of nasty workarounds, provide a GPIO descriptor
table and then make the TUSB6010 MUSB glue driver pick up
the GPIO lines directly, convert it to an IRQ and pass down
to the MUSB driver. OMAP2 is the only system using the
TUSB6010.
Stash the GPIO descriptors in the glue layer and use
then to power up and down the TUSB6010 on-demand, instead
of using boardfile callbacks.
Since the OMAP2 boards are the only boards using the
.set_power() and .board_set_power() callbacks, we can
just delete them as the power is now handled directly
in the TUSB6010 glue code.
Cc: Bin Liu <b-liu@ti.com>
Cc: linux-usb@vger.kernel.org
Fixes: 92bf78b33b ("gpio: omap: use dynamic allocation of base")
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
135 lines
3.2 KiB
C
135 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* This is used to for host and peripheral modes of the driver for
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* Inventra (Multidrop) Highspeed Dual-Role Controllers: (M)HDRC.
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*
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* Board initialization should put one of these into dev->platform_data,
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* probably on some platform_device named "musb-hdrc". It encapsulates
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* key configuration differences between boards.
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*/
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#ifndef __LINUX_USB_MUSB_H
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#define __LINUX_USB_MUSB_H
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/* The USB role is defined by the connector used on the board, so long as
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* standards are being followed. (Developer boards sometimes won't.)
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*/
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enum musb_mode {
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MUSB_UNDEFINED = 0,
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MUSB_HOST, /* A or Mini-A connector */
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MUSB_PERIPHERAL, /* B or Mini-B connector */
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MUSB_OTG /* Mini-AB connector */
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};
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struct clk;
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enum musb_fifo_style {
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FIFO_RXTX,
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FIFO_TX,
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FIFO_RX
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} __attribute__ ((packed));
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enum musb_buf_mode {
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BUF_SINGLE,
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BUF_DOUBLE
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} __attribute__ ((packed));
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struct musb_fifo_cfg {
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u8 hw_ep_num;
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enum musb_fifo_style style;
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enum musb_buf_mode mode;
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u16 maxpacket;
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};
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#define MUSB_EP_FIFO(ep, st, m, pkt) \
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{ \
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.hw_ep_num = ep, \
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.style = st, \
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.mode = m, \
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.maxpacket = pkt, \
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}
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#define MUSB_EP_FIFO_SINGLE(ep, st, pkt) \
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MUSB_EP_FIFO(ep, st, BUF_SINGLE, pkt)
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#define MUSB_EP_FIFO_DOUBLE(ep, st, pkt) \
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MUSB_EP_FIFO(ep, st, BUF_DOUBLE, pkt)
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struct musb_hdrc_eps_bits {
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const char name[16];
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u8 bits;
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};
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struct musb_hdrc_config {
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struct musb_fifo_cfg *fifo_cfg; /* board fifo configuration */
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unsigned fifo_cfg_size; /* size of the fifo configuration */
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/* MUSB configuration-specific details */
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unsigned multipoint:1; /* multipoint device */
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unsigned dyn_fifo:1 __deprecated; /* supports dynamic fifo sizing */
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/* need to explicitly de-assert the port reset after resume? */
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unsigned host_port_deassert_reset_at_resume:1;
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u8 num_eps; /* number of endpoints _with_ ep0 */
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u8 ram_bits; /* ram address size */
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u32 maximum_speed;
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};
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struct musb_hdrc_platform_data {
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/* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
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u8 mode;
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/* for clk_get() */
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const char *clock;
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/* (HOST or OTG) switch VBUS on/off */
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int (*set_vbus)(struct device *dev, int is_on);
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/* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
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u8 power;
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/* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
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u8 min_power;
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/* (HOST or OTG) msec/2 after VBUS on till power good */
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u8 potpgt;
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/* (HOST or OTG) program PHY for external Vbus */
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unsigned extvbus:1;
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/* MUSB configuration-specific details */
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const struct musb_hdrc_config *config;
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/* Architecture specific board data */
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void *board_data;
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/* Platform specific struct musb_ops pointer */
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const void *platform_ops;
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};
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enum musb_vbus_id_status {
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MUSB_UNKNOWN = 0,
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MUSB_ID_GROUND,
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MUSB_ID_FLOAT,
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MUSB_VBUS_VALID,
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MUSB_VBUS_OFF,
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};
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#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
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int musb_mailbox(enum musb_vbus_id_status status);
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#else
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static inline int musb_mailbox(enum musb_vbus_id_status status)
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{
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return 0;
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}
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#endif
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/* TUSB 6010 support */
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#define TUSB6010_OSCCLK_60 16667 /* psec/clk @ 60.0 MHz */
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#define TUSB6010_REFCLK_24 41667 /* psec/clk @ 24.0 MHz XI */
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#define TUSB6010_REFCLK_19 52083 /* psec/clk @ 19.2 MHz CLKIN */
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#endif /* __LINUX_USB_MUSB_H */
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