diff options
| author | Sudeep Holla <sudeep.holla@arm.com> | 2020-03-27 16:36:53 +0000 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2020-04-14 09:31:48 +0100 |
| commit | 8aa6e12bbf9dd6cf1ebf2aad7b09389863a4c2c6 (patch) | |
| tree | f54aad5840c40139d46872e611b99cd6ac4315c1 /drivers/firmware/arm_scmi/smc.c | |
| parent | b9d15ee21cd8cf088ac574649ae7ac2fefaa440a (diff) | |
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 <peng.fan@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/firmware/arm_scmi/smc.c')
| -rw-r--r-- | drivers/firmware/arm_scmi/smc.c | 5 |
1 files changed, 5 insertions, 0 deletions
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; } |