brcm2708: organize kernel patches

[openwrt/staging/dedeckeh.git] / target / linux / brcm2708 / patches-4.19 / 950-0132-irqchip-irq-bcm2835-Calc.-FIQ_START-at-boot-time.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0132-irqchip-irq-bcm2835-Calc.-FIQ_START-at-boot-time.patch b/target/linux/brcm2708/patches-4.19/950-0132-irqchip-irq-bcm2835-Calc.-FIQ_START-at-boot-time.patch
deleted file mode 100644 (file)
index 16145fe..0000000
--- a/target/linux/brcm2708/patches-4.19/950-0132-irqchip-irq-bcm2835-Calc.-FIQ_START-at-boot-time.patch
+++ /dev/null
@@ -1,66 +0,0 @@
-From 3166f055a568c4fe127b70b81a878ab59070a6f5 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Thu, 14 Jun 2018 11:21:04 +0100
-Subject: [PATCH 132/806] irqchip: irq-bcm2835: Calc. FIQ_START at boot-time
-
-ad83c7cb2f37 ("irqchip/irq-bcm2836: Add support for DT interrupt polarity")
-changed the way that the BCM2836/7 local interrupts are mapped; instead
-of being pre-mapped they are now mapped on-demand. A side effect of this
-change is that the call to irq_of_parse_and_map from armctrl_of_init
-creates a new mapping, forming a gap between the IRQs and the FIQs. This
- gap breaks the FIQ<->IRQ mapping which up to now has been done by assuming:
-
-1) that the value of FIQ_START is the same as the number of normal IRQs
-that will be mapped (still true), and
-
-2) that this value is also the offset between an IRQ and its equivalent
-FIQ (which is no longer the case).
-
-Remove both assumptions by measuring the interval between the last IRQ
-and the last FIQ, passing it as the parameter to init_FIQ().
-
-Fixes: https://github.com/raspberrypi/linux/issues/2432
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- drivers/irqchip/irq-bcm2835.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
---- a/drivers/irqchip/irq-bcm2835.c
-+++ b/drivers/irqchip/irq-bcm2835.c
-@@ -82,8 +82,6 @@
- #define NR_BANKS              3
- #define IRQS_PER_BANK         32
- #define NUMBER_IRQS           MAKE_HWIRQ(NR_BANKS, 0)
--#undef FIQ_START
--#define FIQ_START             (NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0))
- 
- static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
- static const int reg_enable[] __initconst = { 0x18, 0x10, 0x14 };
-@@ -211,7 +209,7 @@ static int __init armctrl_of_init(struct
-                                 bool is_2836)
- {
-       void __iomem *base;
--      int irq, b, i;
-+      int irq = 0, last_irq, b, i;
- 
-       base = of_iomap(node, 0);
-       if (!base)
-@@ -237,6 +235,8 @@ static int __init armctrl_of_init(struct
-               }
-       }
- 
-+      last_irq = irq;
-+
-       if (is_2836) {
-               int parent_irq = irq_of_parse_and_map(node, 0);
- 
-@@ -267,7 +267,7 @@ static int __init armctrl_of_init(struct
-               }
-       }
- #ifndef CONFIG_ARM64
--      init_FIQ(FIQ_START);
-+      init_FIQ(irq - last_irq);
- #endif
- 
-       return 0;