[PATCH 01/23] imx: imx8ulp: Fix MU device probe failure

Ye Li
2023-01-31T08:44:22Z

Since latest DTS has added multiple MU nodes, using compatible
string to find the device node is not proper. It finds the first
node with the compatible string matched even the node is disabled.

Signed-off-by: Ye Li <ye.li@nxp.com>
---
arch/arm/mach-imx/imx8ulp/soc.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c
index 5d95fb8..3498cf9 100644
--- a/arch/arm/mach-imx/imx8ulp/soc.c
+++ b/arch/arm/mach-imx/imx8ulp/soc.c
@@ -673,11 +673,9 @@ int arch_cpu_init(void)
static int imx8ulp_check_mu(void *ctx, struct event *event)
{
struct udevice *devp;
- int node, ret;
-
- node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "fsl,imx8ulp-mu");
+ int ret;

- ret = uclass_get_device_by_of_offset(UCLASS_MISC, node, &devp);
+ ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(imx8ulp_mu), &devp);
if (ret) {
printf("could not get S400 mu %d\n", ret);
return ret;
--
2.7.4