mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 06:33:41 +00:00
158 lines
5.1 KiB
Diff
158 lines
5.1 KiB
Diff
From efb54d0f0445f3d279a7eae7395b566c96d080de Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Tue, 7 May 2019 17:23:41 +0100
|
|
Subject: [PATCH 498/806] usb: dwc_otg: Clean up interrupt claiming code
|
|
|
|
The FIQ/IRQ interrupt number identification code is scattered through
|
|
the dwc_otg driver. Rationalise it, simplifying the code and solving
|
|
an existing issue.
|
|
|
|
See: https://github.com/raspberrypi/linux/issues/2612
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
|
---
|
|
drivers/usb/host/dwc_otg/dwc_otg_driver.c | 18 +++++++++-----
|
|
drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 10 +++-----
|
|
drivers/usb/host/dwc_otg/dwc_otg_os_dep.h | 6 +++++
|
|
drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c | 26 +++-----------------
|
|
4 files changed, 25 insertions(+), 35 deletions(-)
|
|
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_driver.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.c
|
|
@@ -624,11 +624,7 @@ static int dwc_otg_driver_remove(
|
|
* Free the IRQ
|
|
*/
|
|
if (otg_dev->common_irq_installed) {
|
|
-#ifdef PLATFORM_INTERFACE
|
|
- free_irq(platform_get_irq(_dev, 0), otg_dev);
|
|
-#else
|
|
- free_irq(_dev->irq, otg_dev);
|
|
-#endif
|
|
+ free_irq(otg_dev->os_dep.irq_num, otg_dev);
|
|
} else {
|
|
DWC_DEBUGPL(DBG_ANY, "%s: There is no installed irq!\n", __func__);
|
|
return REM_RETVAL(-ENXIO);
|
|
@@ -905,7 +901,9 @@ static int dwc_otg_driver_probe(
|
|
*/
|
|
|
|
#if defined(PLATFORM_INTERFACE)
|
|
- devirq = platform_get_irq(_dev, fiq_enable ? 0 : 1);
|
|
+ devirq = platform_get_irq_byname(_dev, fiq_enable ? "soft" : "usb");
|
|
+ if (devirq < 0)
|
|
+ devirq = platform_get_irq(_dev, fiq_enable ? 0 : 1);
|
|
#else
|
|
devirq = _dev->irq;
|
|
#endif
|
|
@@ -922,6 +920,14 @@ static int dwc_otg_driver_probe(
|
|
} else {
|
|
dwc_otg_device->common_irq_installed = 1;
|
|
}
|
|
+ dwc_otg_device->os_dep.irq_num = devirq;
|
|
+ dwc_otg_device->os_dep.fiq_num = -EINVAL;
|
|
+ if (fiq_enable) {
|
|
+ int devfiq = platform_get_irq_byname(_dev, "usb");
|
|
+ if (devfiq < 0)
|
|
+ devfiq = platform_get_irq(_dev, 1);
|
|
+ dwc_otg_device->os_dep.fiq_num = devfiq;
|
|
+ }
|
|
|
|
#ifndef IRQF_TRIGGER_LOW
|
|
#if defined(LM_INTERFACE) || defined(PLATFORM_INTERFACE)
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
|
|
@@ -492,7 +492,7 @@ static void hcd_init_fiq(void *cookie)
|
|
#endif
|
|
// Enable FIQ interrupt from USB peripheral
|
|
#ifdef CONFIG_ARM64
|
|
- irq = platform_get_irq(otg_dev->os_dep.platformdev, 1);
|
|
+ irq = otg_dev->os_dep.fiq_num;
|
|
|
|
if (irq < 0) {
|
|
DWC_ERROR("Can't get SIM-FIQ irq");
|
|
@@ -509,7 +509,7 @@ static void hcd_init_fiq(void *cookie)
|
|
simfiq_irq = irq;
|
|
#else
|
|
#ifdef CONFIG_GENERIC_IRQ_MULTI_HANDLER
|
|
- irq = platform_get_irq(otg_dev->os_dep.platformdev, 1);
|
|
+ irq = otg_dev->os_dep.fiq_num;
|
|
#else
|
|
irq = INTERRUPT_VC_USB;
|
|
#endif
|
|
@@ -626,11 +626,7 @@ int hcd_init(dwc_bus_dev_t *_dev)
|
|
* allocates the DMA buffer pool, registers the USB bus, requests the
|
|
* IRQ line, and calls hcd_start method.
|
|
*/
|
|
-#ifdef PLATFORM_INTERFACE
|
|
- retval = usb_add_hcd(hcd, platform_get_irq(_dev, fiq_enable ? 0 : 1), IRQF_SHARED);
|
|
-#else
|
|
- retval = usb_add_hcd(hcd, _dev->irq, IRQF_SHARED);
|
|
-#endif
|
|
+ retval = usb_add_hcd(hcd, otg_dev->os_dep.irq_num, IRQF_SHARED);
|
|
if (retval < 0) {
|
|
goto error2;
|
|
}
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
|
|
@@ -102,6 +102,12 @@ typedef struct os_dependent {
|
|
/** Base address for MPHI peripheral */
|
|
void *mphi_base;
|
|
|
|
+ /** IRQ number (<0 if not valid) */
|
|
+ int irq_num;
|
|
+
|
|
+ /** FIQ number (<0 if not valid) */
|
|
+ int fiq_num;
|
|
+
|
|
#ifdef LM_INTERFACE
|
|
struct lm_device *lmdev;
|
|
#elif defined(PCI_INTERFACE)
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c
|
|
@@ -1224,30 +1224,16 @@ int pcd_init(dwc_bus_dev_t *_dev)
|
|
/*
|
|
* Setup interupt handler
|
|
*/
|
|
-#ifdef PLATFORM_INTERFACE
|
|
DWC_DEBUGPL(DBG_ANY, "registering handler for irq%d\n",
|
|
- platform_get_irq(_dev, fiq_enable ? 0 : 1));
|
|
- retval = request_irq(platform_get_irq(_dev, fiq_enable ? 0 : 1), dwc_otg_pcd_irq,
|
|
+ otg_dev->os_dep.irq_num);
|
|
+ retval = request_irq(otg_dev->os_dep.irq_num, dwc_otg_pcd_irq,
|
|
IRQF_SHARED, gadget_wrapper->gadget.name,
|
|
otg_dev->pcd);
|
|
if (retval != 0) {
|
|
- DWC_ERROR("request of irq%d failed\n",
|
|
- platform_get_irq(_dev, fiq_enable ? 0 : 1));
|
|
+ DWC_ERROR("request of irq%d failed\n", otg_dev->os_dep.irq_num);
|
|
free_wrapper(gadget_wrapper);
|
|
return -EBUSY;
|
|
}
|
|
-#else
|
|
- DWC_DEBUGPL(DBG_ANY, "registering handler for irq%d\n",
|
|
- _dev->irq);
|
|
- retval = request_irq(_dev->irq, dwc_otg_pcd_irq,
|
|
- IRQF_SHARED | IRQF_DISABLED,
|
|
- gadget_wrapper->gadget.name, otg_dev->pcd);
|
|
- if (retval != 0) {
|
|
- DWC_ERROR("request of irq%d failed\n", _dev->irq);
|
|
- free_wrapper(gadget_wrapper);
|
|
- return -EBUSY;
|
|
- }
|
|
-#endif
|
|
|
|
dwc_otg_pcd_start(gadget_wrapper->pcd, &fops);
|
|
|
|
@@ -1267,11 +1253,7 @@ void pcd_remove(dwc_bus_dev_t *_dev)
|
|
/*
|
|
* Free the IRQ
|
|
*/
|
|
-#ifdef PLATFORM_INTERFACE
|
|
- free_irq(platform_get_irq(_dev, 0), pcd);
|
|
-#else
|
|
- free_irq(_dev->irq, pcd);
|
|
-#endif
|
|
+ free_irq(otg_dev->os_dep.irq_num, pcd);
|
|
dwc_otg_pcd_remove(otg_dev->pcd);
|
|
free_wrapper(gadget_wrapper);
|
|
otg_dev->pcd = 0;
|