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path: root/drivers/dma/ipu/ipu_irq.c
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Diffstat (limited to 'drivers/dma/ipu/ipu_irq.c')
-rw-r--r--drivers/dma/ipu/ipu_irq.c66
1 files changed, 34 insertions, 32 deletions
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index ab8a4eff072..2e284a4438b 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -14,8 +14,8 @@
#include <linux/clk.h>
#include <linux/irq.h>
#include <linux/io.h>
-
-#include <mach/ipu.h>
+#include <linux/module.h>
+#include <linux/dma/ipu-dma.h>
#include "ipu_intern.h"
@@ -44,7 +44,6 @@ static void ipu_write_reg(struct ipu *ipu, u32 value, unsigned long reg)
struct ipu_irq_bank {
unsigned int control;
unsigned int status;
- spinlock_t lock;
struct ipu *ipu;
};
@@ -81,7 +80,7 @@ static struct ipu_irq_map irq_map[CONFIG_MX3_IPU_IRQS];
/* Protects allocations from the above array of maps */
static DEFINE_MUTEX(map_lock);
/* Protects register accesses and individual mappings */
-static DEFINE_SPINLOCK(bank_lock);
+static DEFINE_RAW_SPINLOCK(bank_lock);
static struct ipu_irq_map *src2map(unsigned int src)
{
@@ -101,11 +100,11 @@ static void ipu_irq_unmask(struct irq_data *d)
uint32_t reg;
unsigned long lock_flags;
- spin_lock_irqsave(&bank_lock, lock_flags);
+ raw_spin_lock_irqsave(&bank_lock, lock_flags);
bank = map->bank;
if (!bank) {
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);
return;
}
@@ -114,7 +113,7 @@ static void ipu_irq_unmask(struct irq_data *d)
reg |= (1UL << (map->source & 31));
ipu_write_reg(bank->ipu, reg, bank->control);
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
}
static void ipu_irq_mask(struct irq_data *d)
@@ -124,11 +123,11 @@ static void ipu_irq_mask(struct irq_data *d)
uint32_t reg;
unsigned long lock_flags;
- spin_lock_irqsave(&bank_lock, lock_flags);
+ raw_spin_lock_irqsave(&bank_lock, lock_flags);
bank = map->bank;
if (!bank) {
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);
return;
}
@@ -137,7 +136,7 @@ static void ipu_irq_mask(struct irq_data *d)
reg &= ~(1UL << (map->source & 31));
ipu_write_reg(bank->ipu, reg, bank->control);
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
}
static void ipu_irq_ack(struct irq_data *d)
@@ -146,17 +145,17 @@ static void ipu_irq_ack(struct irq_data *d)
struct ipu_irq_bank *bank;
unsigned long lock_flags;
- spin_lock_irqsave(&bank_lock, lock_flags);
+ raw_spin_lock_irqsave(&bank_lock, lock_flags);
bank = map->bank;
if (!bank) {
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);
return;
}
ipu_write_reg(bank->ipu, 1UL << (map->source & 31), bank->status);
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
}
/**
@@ -172,11 +171,11 @@ bool ipu_irq_status(unsigned int irq)
unsigned long lock_flags;
bool ret;
- spin_lock_irqsave(&bank_lock, lock_flags);
+ raw_spin_lock_irqsave(&bank_lock, lock_flags);
bank = map->bank;
ret = bank && ipu_read_reg(bank->ipu, bank->status) &
(1UL << (map->source & 31));
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
return ret;
}
@@ -213,10 +212,10 @@ int ipu_irq_map(unsigned int source)
if (irq_map[i].source < 0) {
unsigned long lock_flags;
- spin_lock_irqsave(&bank_lock, lock_flags);
+ raw_spin_lock_irqsave(&bank_lock, lock_flags);
irq_map[i].source = source;
irq_map[i].bank = irq_bank + source / 32;
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
ret = irq_map[i].irq;
pr_debug("IPU: mapped source %u to IRQ %u\n",
@@ -252,10 +251,10 @@ int ipu_irq_unmap(unsigned int source)
pr_debug("IPU: unmapped source %u from IRQ %u\n",
source, irq_map[i].irq);
- spin_lock_irqsave(&bank_lock, lock_flags);
+ raw_spin_lock_irqsave(&bank_lock, lock_flags);
irq_map[i].source = -EINVAL;
irq_map[i].bank = NULL;
- spin_unlock_irqrestore(&bank_lock, lock_flags);
+ raw_spin_unlock_irqrestore(&bank_lock, lock_flags);
ret = 0;
break;
@@ -276,7 +275,7 @@ static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
for (i = IPU_IRQ_NR_FN_BANKS; i < IPU_IRQ_NR_BANKS; i++) {
struct ipu_irq_bank *bank = irq_bank + i;
- spin_lock(&bank_lock);
+ raw_spin_lock(&bank_lock);
status = ipu_read_reg(ipu, bank->status);
/*
* Don't think we have to clear all interrupts here, they will
@@ -284,18 +283,18 @@ static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
* might want to clear unhandled interrupts after the loop...
*/
status &= ipu_read_reg(ipu, bank->control);
- spin_unlock(&bank_lock);
+ raw_spin_unlock(&bank_lock);
while ((line = ffs(status))) {
struct ipu_irq_map *map;
line--;
status &= ~(1UL << line);
- spin_lock(&bank_lock);
+ raw_spin_lock(&bank_lock);
map = src2map(32 * i + line);
if (map)
irq = map->irq;
- spin_unlock(&bank_lock);
+ raw_spin_unlock(&bank_lock);
if (!map) {
pr_err("IPU: Interrupt on unmapped source %u bank %d\n",
@@ -317,22 +316,22 @@ static void ipu_irq_fn(unsigned int irq, struct irq_desc *desc)
for (i = 0; i < IPU_IRQ_NR_FN_BANKS; i++) {
struct ipu_irq_bank *bank = irq_bank + i;
- spin_lock(&bank_lock);
+ raw_spin_lock(&bank_lock);
status = ipu_read_reg(ipu, bank->status);
/* Not clearing all interrupts, see above */
status &= ipu_read_reg(ipu, bank->control);
- spin_unlock(&bank_lock);
+ raw_spin_unlock(&bank_lock);
while ((line = ffs(status))) {
struct ipu_irq_map *map;
line--;
status &= ~(1UL << line);
- spin_lock(&bank_lock);
+ raw_spin_lock(&bank_lock);
map = src2map(32 * i + line);
if (map)
irq = map->irq;
- spin_unlock(&bank_lock);
+ raw_spin_unlock(&bank_lock);
if (!map) {
pr_err("IPU: Interrupt on unmapped source %u bank %d\n",
@@ -354,10 +353,12 @@ static struct irq_chip ipu_irq_chip = {
/* Install the IRQ handler */
int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
{
- struct ipu_platform_data *pdata = dev->dev.platform_data;
- unsigned int irq, irq_base, i;
+ unsigned int irq, i;
+ int irq_base = irq_alloc_descs(-1, 0, CONFIG_MX3_IPU_IRQS,
+ numa_node_id());
- irq_base = pdata->irq_base;
+ if (irq_base < 0)
+ return irq_base;
for (i = 0; i < IPU_IRQ_NR_BANKS; i++)
irq_bank[i].ipu = ipu;
@@ -387,15 +388,16 @@ int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
irq_set_handler_data(ipu->irq_err, ipu);
irq_set_chained_handler(ipu->irq_err, ipu_irq_err);
+ ipu->irq_base = irq_base;
+
return 0;
}
void ipu_irq_detach_irq(struct ipu *ipu, struct platform_device *dev)
{
- struct ipu_platform_data *pdata = dev->dev.platform_data;
unsigned int irq, irq_base;
- irq_base = pdata->irq_base;
+ irq_base = ipu->irq_base;
irq_set_chained_handler(ipu->irq_fn, NULL);
irq_set_handler_data(ipu->irq_fn, NULL);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-12 07:07:00 +0000