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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/arm/mach-footbridge
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/arm/mach-footbridge')
-rw-r--r--kernel/arch/arm/mach-footbridge/common.c2
-rw-r--r--kernel/arch/arm/mach-footbridge/dc21285-timer.c48
-rw-r--r--kernel/arch/arm/mach-footbridge/dma.c2
-rw-r--r--kernel/arch/arm/mach-footbridge/isa-irq.c13
4 files changed, 31 insertions, 34 deletions
diff --git a/kernel/arch/arm/mach-footbridge/common.c b/kernel/arch/arm/mach-footbridge/common.c
index 9e8220e38..0f0c9e040 100644
--- a/kernel/arch/arm/mach-footbridge/common.c
+++ b/kernel/arch/arm/mach-footbridge/common.c
@@ -106,7 +106,7 @@ static void __init __fb_init_irq(void)
for (irq = _DC21285_IRQ(0); irq < _DC21285_IRQ(20); irq++) {
irq_set_chip_and_handler(irq, &fb_chip, handle_level_irq);
- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+ irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
}
}
diff --git a/kernel/arch/arm/mach-footbridge/dc21285-timer.c b/kernel/arch/arm/mach-footbridge/dc21285-timer.c
index bf7aa7d29..810edc78c 100644
--- a/kernel/arch/arm/mach-footbridge/dc21285-timer.c
+++ b/kernel/arch/arm/mach-footbridge/dc21285-timer.c
@@ -57,34 +57,32 @@ static int ckevt_dc21285_set_next_event(unsigned long delta,
return 0;
}
-static void ckevt_dc21285_set_mode(enum clock_event_mode mode,
- struct clock_event_device *c)
+static int ckevt_dc21285_shutdown(struct clock_event_device *c)
{
- switch (mode) {
- case CLOCK_EVT_MODE_RESUME:
- case CLOCK_EVT_MODE_PERIODIC:
- *CSR_TIMER1_CLR = 0;
- *CSR_TIMER1_LOAD = (mem_fclk_21285 + 8 * HZ) / (16 * HZ);
- *CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_AUTORELOAD |
- TIMER_CNTL_DIV16;
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_SHUTDOWN:
- *CSR_TIMER1_CNTL = 0;
- break;
- }
+ *CSR_TIMER1_CNTL = 0;
+ return 0;
+}
+
+static int ckevt_dc21285_set_periodic(struct clock_event_device *c)
+{
+ *CSR_TIMER1_CLR = 0;
+ *CSR_TIMER1_LOAD = (mem_fclk_21285 + 8 * HZ) / (16 * HZ);
+ *CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_AUTORELOAD |
+ TIMER_CNTL_DIV16;
+ return 0;
}
static struct clock_event_device ckevt_dc21285 = {
- .name = "dc21285_timer1",
- .features = CLOCK_EVT_FEAT_PERIODIC |
- CLOCK_EVT_FEAT_ONESHOT,
- .rating = 200,
- .irq = IRQ_TIMER1,
- .set_next_event = ckevt_dc21285_set_next_event,
- .set_mode = ckevt_dc21285_set_mode,
+ .name = "dc21285_timer1",
+ .features = CLOCK_EVT_FEAT_PERIODIC |
+ CLOCK_EVT_FEAT_ONESHOT,
+ .rating = 200,
+ .irq = IRQ_TIMER1,
+ .set_next_event = ckevt_dc21285_set_next_event,
+ .set_state_shutdown = ckevt_dc21285_shutdown,
+ .set_state_periodic = ckevt_dc21285_set_periodic,
+ .set_state_oneshot = ckevt_dc21285_shutdown,
+ .tick_resume = ckevt_dc21285_set_periodic,
};
static irqreturn_t timer1_interrupt(int irq, void *dev_id)
@@ -94,7 +92,7 @@ static irqreturn_t timer1_interrupt(int irq, void *dev_id)
*CSR_TIMER1_CLR = 0;
/* Stop the timer if in one-shot mode */
- if (ce->mode == CLOCK_EVT_MODE_ONESHOT)
+ if (clockevent_state_oneshot(ce))
*CSR_TIMER1_CNTL = 0;
ce->event_handler(ce);
diff --git a/kernel/arch/arm/mach-footbridge/dma.c b/kernel/arch/arm/mach-footbridge/dma.c
index e2e0df8bc..22536b85a 100644
--- a/kernel/arch/arm/mach-footbridge/dma.c
+++ b/kernel/arch/arm/mach-footbridge/dma.c
@@ -13,9 +13,9 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spinlock.h>
+#include <linux/scatterlist.h>
#include <asm/dma.h>
-#include <asm/scatterlist.h>
#include <asm/mach/dma.h>
#include <asm/hardware/dec21285.h>
diff --git a/kernel/arch/arm/mach-footbridge/isa-irq.c b/kernel/arch/arm/mach-footbridge/isa-irq.c
index c3a0abbc9..c01fca11b 100644
--- a/kernel/arch/arm/mach-footbridge/isa-irq.c
+++ b/kernel/arch/arm/mach-footbridge/isa-irq.c
@@ -87,13 +87,12 @@ static struct irq_chip isa_hi_chip = {
.irq_unmask = isa_unmask_pic_hi_irq,
};
-static void
-isa_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void isa_irq_handler(struct irq_desc *desc)
{
unsigned int isa_irq = *(unsigned char *)PCIIACK_BASE;
if (isa_irq < _ISA_IRQ(0) || isa_irq >= _ISA_IRQ(16)) {
- do_bad_IRQ(isa_irq, desc);
+ do_bad_IRQ(desc);
return;
}
@@ -153,13 +152,13 @@ void __init isa_init_irq(unsigned int host_irq)
for (irq = _ISA_IRQ(0); irq < _ISA_IRQ(8); irq++) {
irq_set_chip_and_handler(irq, &isa_lo_chip,
handle_level_irq);
- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+ irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
}
for (irq = _ISA_IRQ(8); irq < _ISA_IRQ(16); irq++) {
irq_set_chip_and_handler(irq, &isa_hi_chip,
handle_level_irq);
- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+ irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
}
request_resource(&ioport_resource, &pic1_resource);
@@ -175,8 +174,8 @@ void __init isa_init_irq(unsigned int host_irq)
* resistor on this line.
*/
if (machine_is_netwinder())
- set_irq_flags(_ISA_IRQ(11), IRQF_VALID |
- IRQF_PROBE | IRQF_NOAUTOEN);
+ irq_modify_status(_ISA_IRQ(11),
+ IRQ_NOREQUEST | IRQ_NOPROBE, IRQ_NOAUTOEN);
}
}