From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
Peng Fan <peng.fan@nxp.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>,
f.fainelli@gmail.com, linux-imx@nxp.com
Subject: [PATCH 3/4] firmware: arm_scmi: Check shmem property for channel availablity
Date: Fri, 27 Mar 2020 16:36:53 +0000 [thread overview]
Message-ID: <20200327163654.13389-4-sudeep.holla@arm.com> (raw)
In-Reply-To: <20200327163654.13389-1-sudeep.holla@arm.com>
Instead of declaring the channel availabilty unconditionally, let us
check for the presence of "shmem" property and return the channel
availablity accordingly.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
drivers/firmware/arm_scmi/smc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/firmware/arm_scmi/smc.c b/drivers/firmware/arm_scmi/smc.c
index dd4b54c29679..5929c668dc1d 100644
--- a/drivers/firmware/arm_scmi/smc.c
+++ b/drivers/firmware/arm_scmi/smc.c
@@ -33,6 +33,11 @@ struct scmi_smc {
static bool smc_chan_available(struct device *dev, int idx)
{
+ struct device_node *np = of_parse_phandle(dev->of_node, "shmem", 0);
+ if (!np)
+ return false;
+
+ of_node_put(np);
return true;
}
--
2.17.1
next prev parent reply other threads:[~2020-03-27 16:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-27 16:36 [PATCH 0/4] firmware: arm_scmi: Extend SMC/HVC to support multiple channels Sudeep Holla
2020-03-27 16:36 ` [PATCH 1/4] firmware: arm_scmi: Make mutex channel specific Sudeep Holla
2020-04-01 1:12 ` Peng Fan
2020-04-01 9:12 ` Sudeep Holla
2020-04-01 9:14 ` Peng Fan
2020-04-01 9:28 ` Sudeep Holla
2020-04-01 9:14 ` Peng Fan
2020-03-27 16:36 ` [PATCH 2/4] firmware: arm_scmi: Drop empty stub for smc_mark_txdone Sudeep Holla
2020-04-01 1:15 ` Peng Fan
2020-03-27 16:36 ` Sudeep Holla [this message]
2020-04-01 1:15 ` [PATCH 3/4] firmware: arm_scmi: Check shmem property for channel availablity Peng Fan
2020-04-01 9:05 ` Sudeep Holla
2020-03-27 16:36 ` [PATCH 4/4] firmware: arm_scmi: Drop checking for shmem property in parent node Sudeep Holla
2020-04-01 1:19 ` Peng Fan
2020-03-31 13:53 ` [PATCH 0/4] firmware: arm_scmi: Extend SMC/HVC to support multiple channels Peng Fan
2020-03-31 14:21 ` Sudeep Holla
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