[PATCH v4 2/3] pinctrl: scmi: add blocklist

[Peng Fan (OSS)]

From: Peng Fan <peng.fan at nxp.com>

i.MX95 will have its own pinctrl scmi driver, so need block
pinctrl-scmi driver for i.MX95, otherwise there will be two pinctrl
devices for a single scmi protocol at 19.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 drivers/pinctrl/pinctrl-scmi.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-scmi.c b/drivers/pinctrl/pinctrl-scmi.c
index 036bc1e3fc6c..331ca20ac68b 100644
--- a/drivers/pinctrl/pinctrl-scmi.c
+++ b/drivers/pinctrl/pinctrl-scmi.c
@@ -11,6 +11,7 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
+#include <linux/of.h>
 #include <linux/scmi_protocol.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -504,6 +505,11 @@ static int pinctrl_scmi_get_pins(struct scmi_pinctrl *pmx,
 	return 0;
 }
 
+static const struct of_device_id scmi_pinctrl_blocklist[] = {
+	{ .compatible = "fsl,imx95", },
+	{ }
+};
+
 static int scmi_pinctrl_probe(struct scmi_device *sdev)
 {
 	int ret;
@@ -511,10 +517,14 @@ static int scmi_pinctrl_probe(struct scmi_device *sdev)
 	struct scmi_pinctrl *pmx;
 	const struct scmi_handle *handle;
 	struct scmi_protocol_handle *ph;
+	struct device_node *np __free(device_node) = of_find_node_by_path("/");
 
 	if (!sdev->handle)
 		return -EINVAL;
 
+	if (of_match_node(scmi_pinctrl_blocklist, np))
+		return -ENODEV;
+
 	handle = sdev->handle;
 
 	pinctrl_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_PINCTRL, &ph);

-- 
2.37.1