linux-kernel - Re: [PATCH v4 07/11] PCI: rockchip: Fix legacy IRQ generation for RK3399 PCIe endpoint core

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Message-ID: <f111bba2-9dbe-a912-7ced-de141d365964@kernel.org>
Date:   Tue, 18 Apr 2023 08:57:16 +0900
From:   Damien Le Moal <dlemoal@...nel.org>
To:     Rick Wertenbroek <rick.wertenbroek@...il.com>,
        alberto.dassatti@...g-vd.ch
Cc:     xxm@...k-chips.com, stable@...r.kernel.org,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Corentin Labbe <clabbe@...libre.com>,
        Caleb Connolly <kc@...tmarketos.org>,
        Johan Jonker <jbx6244@...il.com>,
        Brian Norris <briannorris@...omium.org>,
        Judy Hsiao <judyhsiao@...omium.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Arnaud Ferraris <arnaud.ferraris@...labora.com>,
        Hugh Cole-Baker <sigmaris@...il.com>,
        linux-pci@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 07/11] PCI: rockchip: Fix legacy IRQ generation for
 RK3399 PCIe endpoint core

On 4/17/23 18:26, Rick Wertenbroek wrote:
> Fix legacy IRQ generation for RK3399 PCIe endpoint core according to
> the technical reference manual (TRM). Assert and deassert legacy
> interrupt (INTx) through the legacy interrupt control register
> ("PCIE_CLIENT_LEGACY_INT_CTRL") instead of manually generating a PCIe
> message. The generation of the legacy interrupt was tested and validated
> with the PCIe endpoint test driver.
> 
> Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
> Cc: stable@...r.kernel.org
> Signed-off-by: Rick Wertenbroek <rick.wertenbroek@...il.com>
> Tested-by: Damien Le Moal <dlemoal@...nel.org>

Reviewed-by: Damien Le Moal <dlemoal@...nel.org>