From: Sudeep Holla Date: Thu, 8 Oct 2020 19:14:51 +0000 (+0100) Subject: mailbox: arm_mhu: Match only if compatible is "arm,mhu" X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ab99e237a48298c458d49b8d8bd850e1aa58e457;p=linux.git mailbox: arm_mhu: Match only if compatible is "arm,mhu" Since we will be soon adding a separate driver based on this ARM MHU driver to support doorbell mode, let us add explicit check to match the default compatible for this driver. This is needed as the probe and match reuses the AMBA device ids currently and don't have any explicit compatible check. Signed-off-by: Sudeep Holla Signed-off-by: Jassi Brar --- diff --git a/drivers/mailbox/arm_mhu.c b/drivers/mailbox/arm_mhu.c index 9da236552bd77..b7fbf276eb62b 100644 --- a/drivers/mailbox/arm_mhu.c +++ b/drivers/mailbox/arm_mhu.c @@ -113,6 +113,9 @@ static int mhu_probe(struct amba_device *adev, const struct amba_id *id) struct device *dev = &adev->dev; int mhu_reg[MHU_CHANS] = {MHU_LP_OFFSET, MHU_HP_OFFSET, MHU_SEC_OFFSET}; + if (!of_device_is_compatible(dev->of_node, "arm,mhu")) + return -ENODEV; + /* Allocate memory for device */ mhu = devm_kzalloc(dev, sizeof(*mhu), GFP_KERNEL); if (!mhu)