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openwrt/target/linux/ramips/patches-5.10/311-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch
Ilya Lipnitskiy 10267e1729 ramips: 5.10: port and refresh patches, ralink drv
Enable testing kernel.

Fix compile errors by using new kernel APIs.

Fix fuzz by manually editing patches to ensure the code goes in the
right place.

For 721-NET-no-auto-carrier-off-support.patch, revert upstream commit
a307593a6 to keep the OpenWrt ralink driver operational.

Add mt7621-pci-phy patch to select REGMAP_MMIO as discussed in PR #3693
and #3952.

Run automatic quilt refresh on the rest.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-06 11:24:12 +01:00

101 lines
2.5 KiB
Diff

From ce3d4a4111a5f7e6b4e74bceae5faa6ce388e8ec Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 14 Jul 2013 23:08:11 +0200
Subject: [PATCH 05/53] MIPS: use set_mode() to enable/disable the cevt-r4k
irq
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/ralink/Kconfig | 5 +++++
1 file changed, 5 insertions(+)
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -1,12 +1,17 @@
# SPDX-License-Identifier: GPL-2.0
if RALINK
+config CEVT_SYSTICK_QUIRK
+ bool
+ default n
+
config CLKEVT_RT3352
bool
depends on SOC_RT305X || SOC_MT7620
default y
select TIMER_OF
select CLKSRC_MMIO
+ select CEVT_SYSTICK_QUIRK
config RALINK_ILL_ACC
bool
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -16,6 +16,31 @@
#include <asm/time.h>
#include <asm/cevt-r4k.h>
+#ifdef CONFIG_CEVT_SYSTICK_QUIRK
+static int mips_state_oneshot(struct clock_event_device *evt)
+{
+ unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED;
+ if (!cp0_timer_irq_installed) {
+ cp0_timer_irq_installed = 1;
+ if (request_irq(evt->irq, c0_compare_interrupt, flags, "timer",
+ c0_compare_interrupt))
+ pr_err("Failed to request irq %d (timer)\n", evt->irq);
+ }
+
+ return 0;
+}
+
+static int mips_state_shutdown(struct clock_event_device *evt)
+{
+ if (cp0_timer_irq_installed) {
+ cp0_timer_irq_installed = 0;
+ free_irq(evt->irq, NULL);
+ }
+
+ return 0;
+}
+#endif
+
static int mips_next_event(unsigned long delta,
struct clock_event_device *evt)
{
@@ -296,7 +321,9 @@ core_initcall(r4k_register_cpufreq_notif
int r4k_clockevent_init(void)
{
+#ifndef CONFIG_CEVT_SYSTICK_QUIRK
unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED;
+#endif
unsigned int cpu = smp_processor_id();
struct clock_event_device *cd;
unsigned int irq, min_delta;
@@ -326,11 +353,16 @@ int r4k_clockevent_init(void)
cd->rating = 300;
cd->irq = irq;
cd->cpumask = cpumask_of(cpu);
+#ifdef CONFIG_CEVT_SYSTICK_QUIRK
+ cd->set_state_shutdown = mips_state_shutdown;
+ cd->set_state_oneshot = mips_state_oneshot;
+#endif
cd->set_next_event = mips_next_event;
cd->event_handler = mips_event_handler;
clockevents_config_and_register(cd, mips_hpt_frequency, min_delta, 0x7fffffff);
+#ifndef CONFIG_CEVT_SYSTICK_QUIRK
if (cp0_timer_irq_installed)
return 0;
@@ -339,6 +371,7 @@ int r4k_clockevent_init(void)
if (request_irq(irq, c0_compare_interrupt, flags, "timer",
c0_compare_interrupt))
pr_err("Failed to request irq %d (timer)\n", irq);
+#endif
return 0;
}