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authorTony Lindgren <tony@atomide.com>2008-09-04 16:25:14 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-10-17 14:41:00 -0700
commitf1c9e151b18ade3be5b1865d288a490bff4339e6 (patch)
tree50f08adce13f6d3bd687fc3369e5882ee8a8159e /drivers/usb/gadget
parent9b466c3b8208f395cb3492e32b254a81c5b31780 (diff)
USB: omap_udc: sync with OMAP tree
Sync up USB parts of the omap_udc support in mainline with the OMAP tree. This patch addresses some OMAP2 differences ... there's another, with respect to the double-buffering issue with PIO-IN in omap_ep_setup() (which is now out of sync with the comments), but it's not clear right now how to address that. From: Tony Lindgren <tony@atomide.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/Kconfig2
-rw-r--r--drivers/usb/gadget/omap_udc.c7
2 files changed, 8 insertions, 1 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 1a72715bce8a..dd4cd5a51370 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -190,7 +190,7 @@ config USB_LH7A40X
config USB_GADGET_OMAP
boolean "OMAP USB Device Controller"
depends on ARCH_OMAP
- select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3
+ select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG
help
Many Texas Instruments OMAP processors have flexible full
speed USB device controllers, with support for up to 30
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index bb54cca4c543..34e9e393f929 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -2313,6 +2313,13 @@ static int proc_otg_show(struct seq_file *s)
tmp = omap_readl(OTG_REV);
if (cpu_is_omap24xx()) {
+ /*
+ * REVISIT: Not clear how this works on OMAP2. trans
+ * is ANDed to produce bits 7 and 8, which might make
+ * sense for USB_TRANSCEIVER_CTRL on OMAP1,
+ * but with CONTROL_DEVCONF, these bits have something to
+ * do with the frame adjustment counter and McBSP2.
+ */
ctrl_name = "control_devconf";
trans = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
} else {