From: Andrew Lunn <andrew@lunn.ch>
To: "Shenwei Wang (OSS)" <shenwei.wang@oss.nxp.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>,
Linus Walleij <linusw@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>,
Jonathan Corbet <corbet@lwn.net>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Frank Li <frank.li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Shuah Khan <skhan@linuxfoundation.org>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Shenwei Wang <shenwei.wang@nxp.com>, Peng Fan <peng.fan@nxp.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-remoteproc@vger.kernel.org"
<linux-remoteproc@vger.kernel.org>,
"imx@lists.linux.dev" <imx@lists.linux.dev>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
dl-linux-imx <linux-imx@nxp.com>,
Arnaud POULIQUEN <arnaud.pouliquen@foss.st.com>,
"b-padhi@ti.com" <b-padhi@ti.com>
Subject: Re: [PATCH v14 1/5] docs: driver-api: gpio: rpmsg gpio driver over rpmsg bus
Date: Tue, 14 Jul 2026 22:13:18 +0200 [thread overview]
Message-ID: <680d0633-cdec-4545-9114-79bfd6eaac41@lunn.ch> (raw)
In-Reply-To: <PAXPR04MB91852808D2C7491AEF98CF1589F92@PAXPR04MB9185.eurprd04.prod.outlook.com>
> > 1) You did not include messages that mask and unmask interrupts at the driver
> > side.
>
> Interrupt masking and unmasking are handled entirely on the local processor.
>
> When an interrupt occurs, the remote system masks the interrupt and then sends a notification
> to Linux. After Linux processes the notification, it sends a SET_IRQ_TYPE message back to the
> remote system, which then unmasks the interrupt.
Masking and unmasking an interrupt are orthogonal to the interrupt
type.
When the interrupt fires, the interrupt core calls the irq_mask()
operation on the interrupt. That should mask the interrupt. Once the
handler has finished, the interrupt core, will call irq_unmask() to
unmask the interrupt.
Edge, level, high, low, raising, falling has nothing to do with
masking. Please don't mix concepts which Linux keeps separate.
Andrew
next prev parent reply other threads:[~2026-07-14 20:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-25 15:54 [PATCH v14 0/5] Enable Remote GPIO over RPMSG on i.MX Platform Shenwei Wang
2026-06-25 15:54 ` [PATCH v14 1/5] docs: driver-api: gpio: rpmsg gpio driver over rpmsg bus Shenwei Wang
2026-07-13 17:16 ` Mathieu Poirier
2026-07-14 14:29 ` Shenwei Wang (OSS)
2026-07-14 16:35 ` Mathieu Poirier
2026-07-14 18:43 ` Shenwei Wang (OSS)
2026-07-14 20:13 ` Andrew Lunn [this message]
2026-07-14 20:27 ` Shenwei Wang (OSS)
2026-07-14 19:04 ` Shenwei Wang (OSS)
2026-07-14 20:22 ` Andrew Lunn
2026-07-14 21:10 ` Shenwei Wang (OSS)
2026-06-25 15:54 ` [PATCH v14 2/5] dt-bindings: remoteproc: imx_rproc: Add "rpmsg" subnode support Shenwei Wang
2026-06-25 15:54 ` [PATCH v14 3/5] rpmsg: core: match rpmsg device IDs by prefix Shenwei Wang
2026-06-25 15:54 ` [PATCH v14 4/5] gpio: rpmsg: add generic rpmsg GPIO driver Shenwei Wang
2026-06-25 20:32 ` Andrew Davis
2026-06-29 18:26 ` Shenwei Wang (OSS)
2026-06-29 19:22 ` Andrew Davis
2026-06-25 22:17 ` Julian Braha
2026-06-25 15:54 ` [PATCH v14 5/5] arm64: dts: imx8ulp: Add rpmsg node under imx_rproc Shenwei Wang
2026-07-06 15:40 ` [PATCH v14 0/5] Enable Remote GPIO over RPMSG on i.MX Platform Shenwei Wang (OSS)
2026-07-06 15:57 ` Mathieu Poirier
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