From: Lee Jones <lee.jones@linaro.org>
To: Brian Masney <masneyb@onstation.org>
Cc: linus.walleij@linaro.org, sboyd@kernel.org,
bjorn.andersson@linaro.org, andy.gross@linaro.org,
marc.zyngier@arm.com, tglx@linutronix.de, shawnguo@kernel.org,
dianders@chromium.org, linux-gpio@vger.kernel.org,
nicolas.dechesne@linaro.org, niklas.cassel@linaro.org,
david.brown@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com,
thierry.reding@gmail.com, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH v2 05/11] mfd: pm8xxx: disassociate old virq if hwirq mapping already exists
Date: Tue, 12 Feb 2019 08:39:16 +0000 [thread overview]
Message-ID: <20190212083916.GV20638@dell> (raw)
In-Reply-To: <20190208021631.30252-6-masneyb@onstation.org>
On Thu, 07 Feb 2019, Brian Masney wrote:
> Check to see if the hwirq is already associated with another virq on
> this IRQ domain. If so, then disassociate it before associating the
> hwirq with the new virq.
>
> This is a temporary hack that is needed in order to not break git
> bisect for existing boards. The next patch in this series converts
> ssbi-gpio to be a hierarchical IRQ chip, then there are several patches
> to update all of the device tree files, and finally this patch will be
> reverted within the same patch series.
>
> IRQs for ssbi-gpio are all initially setup without an IRQ hierarchy
> this driver is probed due to the interrupts property in device tree.
> Once ssbi-gpio is converted to be a hierarchical IRQ chip in the next
> patch, existing users of gpio[d]_to_irq() will call pmic_gpio_to_irq(),
> and that will use the new IRQ chip code in ssbi-gpio that sets up the
> IRQ in an IRQ hierarchy. The hwirq is now associated with two Linux
> virqs and interrupts will not work as expected. This patch corrects
> that issue.
>
> This change was tested on an APQ8060 DragonBoard.
>
> Signed-off-by: Brian Masney <masneyb@onstation.org>
> Tested-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> Changes since v1:
> - None
>
> drivers/mfd/qcom-pm8xxx.c | 6 ++++++
> 1 file changed, 6 insertions(+)
For Linus:
Acked-by: Lee Jones <lee.jones@linaro.org>
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
next prev parent reply other threads:[~2019-02-12 8:39 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-08 2:16 [PATCH v2 00/11] qcom: ssbi-gpio: add support for hierarchical IRQ chip Brian Masney
2019-02-08 2:16 ` [PATCH v2 01/11] pinctrl: qcom: ssbi-gpio: hardcode IRQ counts Brian Masney
2019-02-08 2:16 ` [PATCH v2 02/11] genirq: introduce irq_domain_translate_twocell Brian Masney
2019-02-08 13:25 ` Marc Zyngier
2019-02-08 2:16 ` [PATCH v2 03/11] genirq: introduce irq_chip_mask_ack_parent() Brian Masney
2019-02-08 2:16 ` [PATCH v2 04/11] mfd: pm8xxx: convert to v2 irq interfaces to support hierarchical IRQ chips Brian Masney
2019-02-12 8:38 ` Lee Jones
2019-02-08 2:16 ` [PATCH v2 05/11] mfd: pm8xxx: disassociate old virq if hwirq mapping already exists Brian Masney
2019-02-12 8:39 ` Lee Jones [this message]
2019-02-15 5:51 ` Stephen Boyd
2019-02-15 13:47 ` Brian Masney
2019-02-15 21:28 ` Stephen Boyd
2019-02-16 0:23 ` Brian Masney
2019-02-21 18:47 ` Stephen Boyd
2019-02-22 8:57 ` Marc Zyngier
2019-02-22 9:07 ` Linus Walleij
2019-02-08 2:16 ` [PATCH v2 06/11] qcom: ssbi-gpio: add support for hierarchical IRQ chip Brian Masney
2019-02-08 2:16 ` [PATCH v2 07/11] arm: dts: qcom: apq8064: add interrupt controller properties Brian Masney
2019-02-08 2:16 ` [PATCH v2 08/11] arm: dts: qcom: msm8660: " Brian Masney
2019-02-08 2:16 ` [PATCH v2 09/11] arm: dts: qcom: mdm9615: " Brian Masney
2019-02-08 2:16 ` [PATCH v2 10/11] ARM: dts: qcom-apq8060: Fix up interrupt parents Brian Masney
2019-02-08 2:16 ` [PATCH v2 11/11] mfd: pm8xxx: revert "disassociate old virq if hwirq mapping already exists" Brian Masney
2019-02-12 8:20 ` Lee Jones
2019-02-11 13:33 ` [PATCH v2 00/11] qcom: ssbi-gpio: add support for hierarchical IRQ chip Linus Walleij
2019-02-13 8:38 ` Linus Walleij
2019-02-21 11:59 ` Linus Walleij
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