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USB: isp1760: allow platform devices to customize devflags

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Platform device support was merged earlier, but support for boards to
customize the devflags aspect of the controller was not.  We want this on
Blackfin systems to control the bus width, but might as well expose all of
the fields while we're at it.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Michael Hennerich
2009-07-15 23:22:54 -04:00
committed by Greg Kroah-Hartman
parent 331ac6b288
commit 9da69c604d
4 changed files with 44 additions and 1 deletions
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4
drivers/usb/host/isp1760-hcd.c
View File

@@ -386,6 +386,10 @@ static int isp1760_hc_setup(struct usb_hcd *hcd)
hwmode |= HW_DACK_POL_HIGH;
if (priv->devflags & ISP1760_FLAG_DREQ_POL_HIGH)
hwmode |= HW_DREQ_POL_HIGH;
if (priv->devflags & ISP1760_FLAG_INTR_POL_HIGH)
hwmode |= HW_INTR_HIGH_ACT;
if (priv->devflags & ISP1760_FLAG_INTR_EDGE_TRIG)
hwmode |= HW_INTR_EDGE_TRIG;
/*
* We have to set this first in case we're in 16-bit mode.

2
drivers/usb/host/isp1760-hcd.h
View File

@@ -142,6 +142,8 @@ typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh,
#define ISP1760_FLAG_DACK_POL_HIGH 0x00000010 /* DACK active high */
#define ISP1760_FLAG_DREQ_POL_HIGH 0x00000020 /* DREQ active high */
#define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */
#define ISP1760_FLAG_INTR_POL_HIGH 0x00000080 /* Interrupt polarity active high */
#define ISP1760_FLAG_INTR_EDGE_TRIG 0x00000100 /* Interrupt edge triggered */
/* chip memory management */
struct memory_chunk {

21
drivers/usb/host/isp1760-if.c
View File

@@ -3,6 +3,7 @@
* Currently there is support for
* - OpenFirmware
* - PCI
* - PDEV (generic platform device centralized driver model)
*
* (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
*
@@ -11,6 +12,7 @@
#include <linux/usb.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/usb/isp1760.h>
#include "../core/hcd.h"
#include "isp1760-hcd.h"
@@ -308,6 +310,8 @@ static int __devinit isp1760_plat_probe(struct platform_device *pdev)
struct resource *mem_res;
struct resource *irq_res;
resource_size_t mem_size;
struct isp1760_platform_data *priv = pdev->dev.platform_data;
unsigned int devflags = 0;
unsigned long irqflags = IRQF_SHARED | IRQF_DISABLED;
mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -330,8 +334,23 @@ static int __devinit isp1760_plat_probe(struct platform_device *pdev)
}
irqflags |= irq_res->flags & IRQF_TRIGGER_MASK;
if (priv) {
if (priv->is_isp1761)
devflags |= ISP1760_FLAG_ISP1761;
if (priv->bus_width_16)
devflags |= ISP1760_FLAG_BUS_WIDTH_16;
if (priv->port1_otg)
devflags |= ISP1760_FLAG_OTG_EN;
if (priv->analog_oc)
devflags |= ISP1760_FLAG_ANALOG_OC;
if (priv->dack_polarity_high)
devflags |= ISP1760_FLAG_DACK_POL_HIGH;
if (priv->dreq_polarity_high)
devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
}
hcd = isp1760_register(mem_res->start, mem_size, irq_res->start,
irqflags, &pdev->dev, dev_name(&pdev->dev), 0);
irqflags, &pdev->dev, dev_name(&pdev->dev), devflags);
if (IS_ERR(hcd)) {
pr_warning("isp1760: Failed to register the HCD device\n");
ret = -ENODEV;