[PATCH 19/48] ARM: pxa: lubbock: pass udc irqs as resource

Arnd Bergmann
2022-04-19T16:46:10Z

From: Arnd Bergmann <arnd@arndb.de>

Lubbock is the only machine that has three IRQs for the UDC.
These are currently hardcoded in the driver based on a
machine header file.

Change this to use platform device resources as we use for
the generic IRQ anyway.

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/arm/mach-pxa/lubbock.c | 12 +++++-
.../arm/mach-pxa/{include/mach => }/lubbock.h | 2 -
drivers/usb/gadget/udc/pxa25x_udc.c | 37 ++++++++++---------
drivers/usb/gadget/udc/pxa25x_udc.h | 7 +---
4 files changed, 32 insertions(+), 26 deletions(-)
rename arch/arm/mach-pxa/{include/mach => }/lubbock.h (97%)

diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index 46aef93c0615..201f89f49642 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -46,7 +46,7 @@

#include "pxa25x.h"
#include <linux/platform_data/asoc-pxa.h>
-#include <mach/lubbock.h>
+#include "lubbock.h"
#include "udc.h"
#include <linux/platform_data/irda-pxaficp.h>
#include <linux/platform_data/video-pxafb.h>
@@ -131,6 +131,13 @@ static struct pxa2xx_udc_mach_info udc_info __initdata = {
// no D+ pullup; lubbock can't connect/disconnect in software
};

+static struct resource lubbock_udc_resources[] = {
+ DEFINE_RES_MEM(0x40600000, 0x10000),
+ DEFINE_RES_IRQ(IRQ_USB),
+ DEFINE_RES_IRQ(LUBBOCK_USB_IRQ),
+ DEFINE_RES_IRQ(LUBBOCK_USB_DISC_IRQ),
+};
+
/* GPIOs for SA1111 PCMCIA */
static struct gpiod_lookup_table sa1111_pcmcia_gpio_table = {
.dev_id = "1800",
@@ -496,6 +503,9 @@ static void __init lubbock_init(void)
lubbock_init_pcmcia();

clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
+ /* lubbock has two extra IRQs */
+ pxa25x_device_udc.resource = lubbock_udc_resources;
+ pxa25x_device_udc.num_resources = ARRAY_SIZE(lubbock_udc_resources);
pxa_set_udc_info(&udc_info);
pxa_set_fb_info(NULL, &sharp_lm8v31);
pxa_set_mci_info(&lubbock_mci_platform_data);
diff --git a/arch/arm/mach-pxa/include/mach/lubbock.h b/arch/arm/mach-pxa/lubbock.h
similarity index 97%
rename from arch/arm/mach-pxa/include/mach/lubbock.h
rename to arch/arm/mach-pxa/lubbock.h
index a3af4a2f9446..8e3ff7d57121 100644
--- a/arch/arm/mach-pxa/include/mach/lubbock.h
+++ b/arch/arm/mach-pxa/lubbock.h
@@ -1,7 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
- * arch/arm/mach-pxa/include/mach/lubbock.h
- *
* Author: Nicolas Pitre
* Created: Jun 15, 2001
* Copyright: MontaVista Software Inc.
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index 6c414c99d01c..c593fc383481 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -44,10 +44,6 @@
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>

-#ifdef CONFIG_ARCH_LUBBOCK
-#include <mach/lubbock.h>
-#endif
-
#define UDCCR 0x0000 /* UDC Control Register */
#define UDC_RES1 0x0004 /* UDC Undocumented - Reserved1 */
#define UDC_RES2 0x0008 /* UDC Undocumented - Reserved2 */
@@ -1578,18 +1574,15 @@ lubbock_vbus_irq(int irq, void *_dev)
int vbus;

dev->stats.irqs++;
- switch (irq) {
- case LUBBOCK_USB_IRQ:
+ if (irq == dev->usb_irq) {
vbus = 1;
- disable_irq(LUBBOCK_USB_IRQ);
- enable_irq(LUBBOCK_USB_DISC_IRQ);
- break;
- case LUBBOCK_USB_DISC_IRQ:
+ disable_irq(dev->usb_irq);
+ enable_irq(dev->usb_disc_irq);
+ } else if (irq == dev->usb_disc_irq) {
vbus = 0;
- disable_irq(LUBBOCK_USB_DISC_IRQ);
- enable_irq(LUBBOCK_USB_IRQ);
- break;
- default:
+ disable_irq(dev->usb_disc_irq);
+ enable_irq(dev->usb_irq);
+ } else {
return IRQ_NONE;
}

@@ -2422,20 +2415,28 @@ static int pxa25x_udc_probe(struct platform_device *pdev)

#ifdef CONFIG_ARCH_LUBBOCK
if (machine_is_lubbock()) {
- retval = devm_request_irq(&pdev->dev, LUBBOCK_USB_DISC_IRQ,
+ dev->usb_irq = platform_get_irq(pdev, 1);
+ if (dev->usb_irq < 0)
+ return dev->usb_irq;
+
+ dev->usb_disc_irq = platform_get_irq(pdev, 2);
+ if (dev->usb_disc_irq < 0)
+ return dev->usb_disc_irq;
+
+ retval = devm_request_irq(&pdev->dev, dev->usb_disc_irq,
lubbock_vbus_irq, 0, driver_name,
dev);
if (retval != 0) {
pr_err("%s: can't get irq %i, err %d\n",
- driver_name, LUBBOCK_USB_DISC_IRQ, retval);
+ driver_name, dev->usb_disc_irq, retval);
goto err;
}
- retval = devm_request_irq(&pdev->dev, LUBBOCK_USB_IRQ,
+ retval = devm_request_irq(&pdev->dev, dev->usb_irq,
lubbock_vbus_irq, 0, driver_name,
dev);
if (retval != 0) {
pr_err("%s: can't get irq %i, err %d\n",
- driver_name, LUBBOCK_USB_IRQ, retval);
+ driver_name, dev->usb_irq, retval);
goto err;
}
} else
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.h b/drivers/usb/gadget/udc/pxa25x_udc.h
index aa4b68fd9fc0..6ab6047edc83 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.h
+++ b/drivers/usb/gadget/udc/pxa25x_udc.h
@@ -117,16 +117,13 @@ struct pxa25x_udc {
u64 dma_mask;
struct pxa25x_ep ep [PXA_UDC_NUM_ENDPOINTS];
void __iomem *regs;
+ int usb_irq;
+ int usb_disc_irq;
};
#define to_pxa25x(g) (container_of((g), struct pxa25x_udc, gadget))

/*-------------------------------------------------------------------------*/

-#ifdef CONFIG_ARCH_LUBBOCK
-#include <mach/lubbock.h>
-/* lubbock can also report usb connect/disconnect irqs */
-#endif
-
static struct pxa25x_udc *the_controller;

/*-------------------------------------------------------------------------*/
--
2.29.2