From: Saravana Kannan <saravanak@google.com>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-tegra <linux-tegra@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Jon Hunter <jonathanh@nvidia.com>, Marc Zyngier <maz@kernel.org>,
Kevin Hilman <khilman@baylibre.com>,
Android Kernel Team <kernel-team@android.com>,
Rob Herring <robh@kernel.org>,
Thierry Reding <treding@nvidia.com>
Subject: Re: [PATCH v2 2/2] of: property: Add fw_devlink support for interrupts
Date: Thu, 4 Feb 2021 13:31:13 -0800 [thread overview]
Message-ID: <CAGETcx_KDA55Ti=5CHw48BP1L2Xo64=AFFe+17g27n=P-KUrow@mail.gmail.com> (raw)
In-Reply-To: <9692dfc9-4c63-71c9-b52b-d0feba466695@samsung.com>
On Thu, Feb 4, 2021 at 3:52 AM Marek Szyprowski
<m.szyprowski@samsung.com> wrote:
>
> Hi Saravana,
>
> On 21.01.2021 23:57, Saravana Kannan wrote:
> > This allows fw_devlink to create device links between consumers of an
> > interrupt and the supplier of the interrupt.
> >
> > Cc: Marc Zyngier <maz@kernel.org>
> > Cc: Kevin Hilman <khilman@baylibre.com>
> > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > Reviewed-by: Rob Herring <robh@kernel.org>
> > Reviewed-by: Thierry Reding <treding@nvidia.com>
> > Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> > Signed-off-by: Saravana Kannan <saravanak@google.com>
>
> This patch landed some time ago in linux-next as commit 4104ca776ba3
> ("of: property: Add fw_devlink support for interrupts"). It breaks MMC
> host controller operation on ARM Juno R1 board (the mmci@50000 device
> defined in arch/arm64/boot/dts/arm/juno-motherboard.dtsi). I didn't
I grepped around and it looks like the final board file is this or
whatever includes it?
arch/arm64/boot/dts/arm/juno-base.dtsi
This patch just finds the interrupt-parent and then tries to use that
as a supplier if "interrupts" property is listed. But the only
interrupt parent I can see is:
gic: interrupt-controller@2c010000 {
compatible = "arm,gic-400", "arm,cortex-a15-gic";
And the driver uses IRQCHIP_DECLARE() and hence should be pretty much
a NOP since those suppliers are never devices and are ignored.
$ git grep "arm,gic-400" -- drivers/
drivers/irqchip/irq-gic.c:IRQCHIP_DECLARE(gic_400, "arm,gic-400", gic_of_init);
This doesn't make any sense. Am I looking at the right files? Am I
missing something?
-Saravana
next prev parent reply other threads:[~2021-02-04 21:33 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-21 22:57 [PATCH v2 0/2] of: property: Add fw_devlink support for more props Saravana Kannan
2021-01-21 22:57 ` [PATCH v2 1/2] of: property: Add fw_devlink support for "gpio" and "gpios" binding Saravana Kannan
2021-01-22 12:58 ` Linus Walleij
2021-01-21 22:57 ` [PATCH v2 2/2] of: property: Add fw_devlink support for interrupts Saravana Kannan
[not found] ` <CGME20210204115252eucas1p2d145686f7a5dc7e7a04dddd0b0f2286c@eucas1p2.samsung.com>
2021-02-04 11:52 ` Marek Szyprowski
2021-02-04 21:31 ` Saravana Kannan [this message]
2021-02-05 7:38 ` Marek Szyprowski
2021-02-05 8:06 ` Geert Uytterhoeven
2021-02-05 10:05 ` Saravana Kannan
2021-02-05 10:20 ` Geert Uytterhoeven
2021-02-05 17:19 ` Saravana Kannan
2021-02-05 17:51 ` Geert Uytterhoeven
2021-02-05 17:55 ` Saravana Kannan
2021-02-06 4:32 ` Saravana Kannan
2021-02-08 8:14 ` Marek Szyprowski
2021-02-08 23:57 ` Saravana Kannan
2021-02-13 18:54 ` Guenter Roeck
2021-02-14 21:12 ` Saravana Kannan
2021-02-15 3:06 ` Guenter Roeck
2021-02-15 3:58 ` Guenter Roeck
2021-02-15 8:29 ` Saravana Kannan
2021-02-15 9:08 ` Marc Zyngier
2021-02-15 22:23 ` Saravana Kannan
2021-01-26 8:22 ` [PATCH v2 0/2] of: property: Add fw_devlink support for more props Greg Kroah-Hartman
[not found] ` <20210131163823.c4zb47pl4tukcl7c@viti.kaiser.cx>
2021-01-31 21:05 ` Saravana Kannan
2021-02-01 10:52 ` Martin Kaiser
2021-02-01 20:04 ` Saravana Kannan
[not found] <20210121191637.1067630-1-saravanak@google.com>
2021-01-21 19:16 ` [PATCH v2 2/2] of: property: Add fw_devlink support for interrupts Saravana Kannan
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