From 8aa6e12bbf9dd6cf1ebf2aad7b09389863a4c2c6 Mon Sep 17 00:00:00 2001 From: Sudeep Holla Date: Fri, 27 Mar 2020 16:36:53 +0000 Subject: firmware: arm_scmi: Check shmem property for channel availablity Instead of declaring the channel availabilty unconditionally, let us check for the presence of "shmem" property and return the channel availablity accordingly. Link: https://lore.kernel.org/r/20200327163654.13389-4-sudeep.holla@arm.com Tested-by: Peng Fan Reviewed-by: Peng Fan Signed-off-by: Sudeep Holla --- drivers/firmware/arm_scmi/smc.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/firmware/arm_scmi') 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; } -- cgit v1.2.3