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| author | Paul Walmsley <paul@pwsan.com> | 2012-04-13 06:34:27 -0600 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2012-04-13 06:34:27 -0600 |
| commit | d3645d39ad0ed9f09535065676ea0ba114f93cdf (patch) | |
| tree | 53c7c5e09f27f8780cbfbc5d1d941691ea30a21b | |
| parent | 6f3c1af26543e11fe7549be162698111ed773cb7 (diff) | |
| download | linux-3.10-d3645d39ad0ed9f09535065676ea0ba114f93cdf.tar.gz linux-3.10-d3645d39ad0ed9f09535065676ea0ba114f93cdf.tar.bz2 linux-3.10-d3645d39ad0ed9f09535065676ea0ba114f93cdf.zip | |
ARM: OMAP1: OHCI: use platform_data fn ptr to enable OCPI bus
The OMAP1 OHCI driver needs to enable the OCPI IP block before it can
work. Previously, the driver was simply calling a symbol defined in
the OMAP platform code, but this is incorrect: drivers should be fully
decoupled from platform and architecture code.
So instead, modify the driver to call through a platform_data function
pointer instead. We skip any DT aspect, since OMAP1 is not scheduled
to be converted to DT in the near future.
This resolves the following sparse warning:
It also gets rid of a cpu_is_omap16xx() call in a driver.
In the long term, it probably makes sense to move the OCPI bus code to
somewhere under drivers/. This should avoid the whole platform_data/DT
issue with this function.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
| -rw-r--r-- | arch/arm/mach-omap1/usb.c | 3 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/board.h | 2 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-omap.c | 5 |
3 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/mach-omap1/usb.c b/arch/arm/mach-omap1/usb.c index 19de03b074e..e61afd92276 100644 --- a/arch/arm/mach-omap1/usb.c +++ b/arch/arm/mach-omap1/usb.c @@ -29,6 +29,8 @@ #include <plat/mux.h> #include <plat/usb.h> +#include "common.h" + /* These routines should handle the standard chip-specific modes * for usb0/1/2 ports, covering basic mux and transceiver setup. * @@ -138,6 +140,7 @@ static inline void ohci_device_init(struct omap_usb_config *pdata) if (cpu_is_omap7xx()) ohci_resources[1].start = INT_7XX_USB_HHC_1; pdata->ohci_device = &ohci_device; + pdata->ocpi_enable = &ocpi_enable; } #else diff --git a/arch/arm/plat-omap/include/plat/board.h b/arch/arm/plat-omap/include/plat/board.h index d5eb4c87db9..4814c5b6530 100644 --- a/arch/arm/plat-omap/include/plat/board.h +++ b/arch/arm/plat-omap/include/plat/board.h @@ -91,6 +91,8 @@ struct omap_usb_config { u32 (*usb0_init)(unsigned nwires, unsigned is_device); u32 (*usb1_init)(unsigned nwires); u32 (*usb2_init)(unsigned nwires, unsigned alt_pingroup); + + int (*ocpi_enable)(void); }; struct omap_lcd_config { diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 96451e41ee8..71229cb97e3 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -205,8 +205,9 @@ static int ohci_omap_init(struct usb_hcd *hcd) need_transceiver = need_transceiver || machine_is_omap_h2() || machine_is_omap_h3(); - if (cpu_is_omap16xx()) - ocpi_enable(); + /* XXX OMAP16xx only */ + if (config->ocpi_enable) + config->ocpi_enable(); #ifdef CONFIG_USB_OTG if (need_transceiver) { |