Thread (27 messages) 27 messages, 9 authors, 2026-02-23

Re: [PATCH 4/8] soc: fsl: guts: don't access of_root directly

From: LEROY Christophe <hidden>
Date: 2026-01-19 11:05:46
Also in: imx, linux-arm-kernel, linux-devicetree, linux-renesas-soc, linux-sunxi, lkml


Le 19/01/2026 à 11:40, Bartosz Golaszewski a écrit :
Don't access of_root directly as it reduces the build test coverage for
this driver with COMPILE_TEST=y and OF=n. Use existing helper functions
to retrieve the relevant information.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <redacted>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Acked-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
quoted hunk ↗ jump to hunk
---
  drivers/soc/fsl/guts.c | 12 +++---------
  1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
index 6bf3e6a980ffc67c21ed7b62b5b638e37f27454e..88ba32a40f6a27f8ffd13624e940aa0edf48586f 100644
--- a/drivers/soc/fsl/guts.c
+++ b/drivers/soc/fsl/guts.c
@@ -186,7 +186,6 @@ static int __init fsl_guts_init(void)
  	const struct fsl_soc_data *soc_data;
  	const struct of_device_id *match;
  	struct ccsr_guts __iomem *regs;
-	const char *machine = NULL;
  	struct device_node *np;
  	bool little_endian;
  	u64 soc_uid = 0;
@@ -217,13 +216,9 @@ static int __init fsl_guts_init(void)
  	if (!soc_dev_attr)
  		return -ENOMEM;
  
-	if (of_property_read_string(of_root, "model", &machine))
-		of_property_read_string_index(of_root, "compatible", 0, &machine);
-	if (machine) {
-		soc_dev_attr->machine = kstrdup(machine, GFP_KERNEL);
-		if (!soc_dev_attr->machine)
-			goto err_nomem;
-	}
+	ret = soc_device_get_machine(soc_dev_attr);
+	if (ret)
+		of_machine_get_compatible(&soc_dev_attr->machine);
  
  	soc_die = fsl_soc_die_match(svr, fsl_soc_die);
  	if (soc_die) {
@@ -267,7 +262,6 @@ static int __init fsl_guts_init(void)
  err_nomem:
  	ret = -ENOMEM;
  err:
-	kfree(soc_dev_attr->machine);
  	kfree(soc_dev_attr->family);
  	kfree(soc_dev_attr->soc_id);
  	kfree(soc_dev_attr->revision);
  
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