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Revert "ARM: dts: bcm2711: Add the BSC interrupt controller" 

As Dave reported:

This seems to have unintended side effects.  GIC interrupt 117 is shared
between the standard I2C controllers (i2c-bcm2835) and the l2-intc block
handling the HDMI I2C interrupts.

There is not a great way to share an interrupt between an interrupt
controller using the chained IRQ handler which is an interrupt flow and
another driver like i2c-bcm2835 which uses an interrupt handler
(although it specifies IRQF_SHARED).

Simply revert this change for now which will mean that HDMI I2C will be
polled, like it was before.

Reported-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Florian Fainelli 2021-02-12 11:07:31 -08:00
parent a0610b409f
commit 443f0bb8e2
1 changed files with 0 additions and 12 deletions
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12
arch/arm/boot/dts/bcm2711.dtsi
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@ -308,14 +308,6 @@
#reset-cells = <1>;
};
bsc_intr: interrupt-controller@7ef00040 {
compatible = "brcm,bcm2711-l2-intc", "brcm,l2-intc";
reg = <0x7ef00040 0x30>;
interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <1>;
};
aon_intr: interrupt-controller@7ef00100 {
compatible = "brcm,bcm2711-l2-intc", "brcm,l2-intc";
reg = <0x7ef00100 0x30>;
@ -362,8 +354,6 @@
reg = <0x7ef04500 0x100>, <0x7ef00b00 0x300>;
reg-names = "bsc", "auto-i2c";
clock-frequency = <97500>;
interrupt-parent = <&bsc_intr>;
interrupts = <0>;
status = "disabled";
};
@ -405,8 +395,6 @@
reg = <0x7ef09500 0x100>, <0x7ef05b00 0x300>;
reg-names = "bsc", "auto-i2c";
clock-frequency = <97500>;
interrupt-parent = <&bsc_intr>;
interrupts = <1>;
status = "disabled";
};
};