Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 30A9460F80
From:   Lina Iyer <ilina@codeaurora.org>
To:     swboyd@chromium.org, maz@kernel.org, linus.walleij@linaro.org,
        bjorn.andersson@linaro.org
Cc:     evgreen@chromium.org, linux-kernel@vger.kernel.org,
        linux-arm-msm@vger.kernel.org, mkshah@codeaurora.org,
        linux-gpio@vger.kernel.org, agross@kernel.org,
        dianders@chromium.org, Lina Iyer <ilina@codeaurora.org>
Subject: [PATCH v2 01/12] irqdomain: add bus token DOMAIN_BUS_WAKEUP
Date:   Fri, 15 Nov 2019 15:11:44 -0700
Message-Id: <1573855915-9841-2-git-send-email-ilina@codeaurora.org>
In-Reply-To: <1573855915-9841-1-git-send-email-ilina@codeaurora.org>
References: <1573855915-9841-1-git-send-email-ilina@codeaurora.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

A single controller can handle normal interrupts and wake-up interrupts
independently, with a different numbering space. It is thus crucial to
allow the driver for such a controller discriminate between the two.

A simple way to do so is to tag the wake-up irqdomain with a "bus token"
that indicates the wake-up domain. This slightly abuses the notion of
bus, but also radically simplifies the design of such a driver. Between
two evils, we choose the least damaging.

Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 include/linux/irqdomain.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 583e7ab..3c340db 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -83,6 +83,7 @@ enum irq_domain_bus_token {
 	DOMAIN_BUS_IPI,
 	DOMAIN_BUS_FSL_MC_MSI,
 	DOMAIN_BUS_TI_SCI_INTA_MSI,
+	DOMAIN_BUS_WAKEUP,
 };
 
 /**
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project