openwrtv4/target/linux/bcm53xx/patches-3.18/060-bcma-make-it-possible-to-specify-a-IRQ-num-in-bcma_c.patch
Hauke Mehrtens adbb5ad195 bcm53xx: bcma: get IRQs also from device tree
Add patches for getting the IRQ number for a device of the bcma bus
that were send for upstream inclusion.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 43148
2014-11-01 15:57:30 +00:00

162 lines
5.3 KiB
Diff

From f3bbc921543ad8098617a5a6a8054fab11878a25 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Wed, 1 Oct 2014 00:30:37 +0200
Subject: [PATCH 1/3] bcma: make it possible to specify a IRQ num in
bcma_core_irq()
This moves bcma_core_irq() to main.c and add a extra parameter with a
number so that we can return different irq number for devices with more
than one.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/bcma/driver_chipcommon.c | 2 +-
drivers/bcma/driver_gpio.c | 4 ++--
drivers/bcma/driver_mips.c | 11 ++---------
drivers/bcma/driver_pci_host.c | 4 ++--
drivers/bcma/main.c | 22 ++++++++++++++++++++++
include/linux/bcma/bcma.h | 2 ++
include/linux/bcma/bcma_driver_mips.h | 4 ++--
7 files changed, 33 insertions(+), 16 deletions(-)
--- a/drivers/bcma/driver_chipcommon.c
+++ b/drivers/bcma/driver_chipcommon.c
@@ -339,7 +339,7 @@ void bcma_chipco_serial_init(struct bcma
return;
}
- irq = bcma_core_irq(cc->core);
+ irq = bcma_core_irq(cc->core, 0);
/* Determine the registers of the UARTs */
cc->nr_serial_ports = (cc->capabilities & BCMA_CC_CAP_NRUART);
--- a/drivers/bcma/driver_gpio.c
+++ b/drivers/bcma/driver_gpio.c
@@ -152,7 +152,7 @@ static int bcma_gpio_irq_domain_init(str
handle_simple_irq);
}
- hwirq = bcma_core_irq(cc->core);
+ hwirq = bcma_core_irq(cc->core, 0);
err = request_irq(hwirq, bcma_gpio_irq_handler, IRQF_SHARED, "gpio",
cc);
if (err)
@@ -183,7 +183,7 @@ static void bcma_gpio_irq_domain_exit(st
return;
bcma_cc_mask32(cc, BCMA_CC_IRQMASK, ~BCMA_CC_IRQ_GPIO);
- free_irq(bcma_core_irq(cc->core), cc);
+ free_irq(bcma_core_irq(cc->core, 0), cc);
for (gpio = 0; gpio < chip->ngpio; gpio++) {
int irq = irq_find_mapping(cc->irq_domain, gpio);
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -115,7 +115,7 @@ static u32 bcma_core_mips_irqflag(struct
* If disabled, 5 is returned.
* If not supported, 6 is returned.
*/
-static unsigned int bcma_core_mips_irq(struct bcma_device *dev)
+unsigned int bcma_core_mips_irq(struct bcma_device *dev)
{
struct bcma_device *mdev = dev->bus->drv_mips.core;
u32 irqflag;
@@ -133,13 +133,6 @@ static unsigned int bcma_core_mips_irq(s
return 5;
}
-unsigned int bcma_core_irq(struct bcma_device *dev)
-{
- unsigned int mips_irq = bcma_core_mips_irq(dev);
- return mips_irq <= 4 ? mips_irq + 2 : 0;
-}
-EXPORT_SYMBOL(bcma_core_irq);
-
static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq)
{
unsigned int oldirq = bcma_core_mips_irq(dev);
@@ -423,7 +416,7 @@ void bcma_core_mips_init(struct bcma_drv
break;
default:
list_for_each_entry(core, &bus->cores, list) {
- core->irq = bcma_core_irq(core);
+ core->irq = bcma_core_irq(core, 0);
}
bcma_err(bus,
"Unknown device (0x%x) found, can not configure IRQs\n",
--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
@@ -593,7 +593,7 @@ int bcma_core_pci_plat_dev_init(struct p
pr_info("PCI: Fixing up device %s\n", pci_name(dev));
/* Fix up interrupt lines */
- dev->irq = bcma_core_irq(pc_host->pdev->core);
+ dev->irq = bcma_core_irq(pc_host->pdev->core, 0);
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
readrq = pcie_get_readrq(dev);
@@ -617,6 +617,6 @@ int bcma_core_pci_pcibios_map_irq(const
pc_host = container_of(dev->bus->ops, struct bcma_drv_pci_host,
pci_ops);
- return bcma_core_irq(pc_host->pdev->core);
+ return bcma_core_irq(pc_host->pdev->core, 0);
}
EXPORT_SYMBOL(bcma_core_pci_pcibios_map_irq);
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -169,6 +169,28 @@ static void bcma_of_fill_device(struct p
}
#endif /* CONFIG_OF */
+unsigned int bcma_core_irq(struct bcma_device *core, int num)
+{
+ struct bcma_bus *bus = core->bus;
+ unsigned int mips_irq;
+
+ switch (bus->hosttype) {
+ case BCMA_HOSTTYPE_PCI:
+ return bus->host_pci->irq;
+ case BCMA_HOSTTYPE_SOC:
+ if (bus->drv_mips.core && num == 0) {
+ mips_irq = bcma_core_mips_irq(core);
+ return mips_irq <= 4 ? mips_irq + 2 : 0;
+ }
+ break;
+ case BCMA_HOSTTYPE_SDIO:
+ return 0;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(bcma_core_irq);
+
void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core)
{
core->dev.release = bcma_release_core_dev;
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -447,4 +447,6 @@ extern u32 bcma_chipco_pll_read(struct b
#define BCMA_DMA_TRANSLATION_DMA64_CMT 0x80000000 /* Client Mode Translation for 64-bit DMA */
extern u32 bcma_core_dma_translation(struct bcma_device *core);
+extern unsigned int bcma_core_irq(struct bcma_device *core, int num);
+
#endif /* LINUX_BCMA_H_ */
--- a/include/linux/bcma/bcma_driver_mips.h
+++ b/include/linux/bcma/bcma_driver_mips.h
@@ -43,12 +43,12 @@ struct bcma_drv_mips {
extern void bcma_core_mips_init(struct bcma_drv_mips *mcore);
extern void bcma_core_mips_early_init(struct bcma_drv_mips *mcore);
-extern unsigned int bcma_core_irq(struct bcma_device *core);
+extern unsigned int bcma_core_mips_irq(struct bcma_device *dev);
#else
static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { }
static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) { }
-static inline unsigned int bcma_core_irq(struct bcma_device *core)
+static inline unsigned int bcma_core_mips_irq(struct bcma_device *dev)
{
return 0;
}