Merge tag 'imx-soc-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/arm

i.MX SoC changes for 6.4:

- A couple of changes from Oleksij Rempel which make it possible
  to configure Ethernet refclock from device tree.
- Use common DT helpers to test DT property presence and read boolean
  properties.

* tag 'imx-soc-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: Use of_property_read_bool() for boolean properties
  ARM: mxs: Use of_property_present() for testing DT property presence
  ARM: mach-imx: imx6ul: remove not optional ethernet refclock overwrite
  ARM: imx6q: skip ethernet refclock reconfiguration if enet_clk_ref is present

Link: https://lore.kernel.org/r/20230408101928.280271-2-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

3 files changed, 10 insertions, 22 deletions

diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c
index ebc4339b8be4..5909088d5482 100644
--- a/arch/arm/mach-imx/gpc.c
+++ b/arch/arm/mach-imx/gpc.c
@@ -275,7 +275,7 @@ void __init imx_gpc_check_dt(void)
 	if (WARN_ON(!np))
 		return;
 
-	if (WARN_ON(!of_find_property(np, "interrupt-controller", NULL))) {
+	if (WARN_ON(!of_property_read_bool(np, "interrupt-controller"))) {
 		pr_warn("Outdated DT detected, suspend/resume will NOT work\n");
 
 		/* map GPC, so that at least CPUidle and WARs keep working */
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index c9d7c29d95e1..7f6200925752 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -79,7 +79,7 @@ static void __init imx6q_enet_phy_init(void)
 static void __init imx6q_1588_init(void)
 {
 	struct device_node *np;
-	struct clk *ptp_clk;
+	struct clk *ptp_clk, *fec_enet_ref;
 	struct clk *enet_ref;
 	struct regmap *gpr;
 	u32 clksel;
@@ -90,6 +90,14 @@ static void __init imx6q_1588_init(void)
 		return;
 	}
 
+	/*
+	 * If enet_clk_ref configured, we assume DT did it properly and .
+	 * clk-imx6q.c will do needed configuration.
+	 */
+	fec_enet_ref = of_clk_get_by_name(np, "enet_clk_ref");
+	if (!IS_ERR(fec_enet_ref))
+		goto put_node;
+
 	ptp_clk = of_clk_get(np, 2);
 	if (IS_ERR(ptp_clk)) {
 		pr_warn("%s: failed to get ptp clock\n", __func__);
diff --git a/arch/arm/mach-imx/mach-imx6ul.c b/arch/arm/mach-imx/mach-imx6ul.c
index dbf8d19cef11..7a0299de1db6 100644
--- a/arch/arm/mach-imx/mach-imx6ul.c
+++ b/arch/arm/mach-imx/mach-imx6ul.c
@@ -4,8 +4,6 @@
  */
 #include <linux/irqchip.h>
 #include <linux/mfd/syscon.h>
-#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
-#include <linux/micrel_phy.h>
 #include <linux/of_platform.h>
 #include <linux/phy.h>
 #include <linux/regmap.h>
@@ -16,30 +14,12 @@
 #include "cpuidle.h"
 #include "hardware.h"
 
-static void __init imx6ul_enet_clk_init(void)
-{
-	struct regmap *gpr;
-
-	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr");
-	if (!IS_ERR(gpr))
-		regmap_update_bits(gpr, IOMUXC_GPR1, IMX6UL_GPR1_ENET_CLK_DIR,
-				   IMX6UL_GPR1_ENET_CLK_OUTPUT);
-	else
-		pr_err("failed to find fsl,imx6ul-iomux-gpr regmap\n");
-}
-
-static inline void imx6ul_enet_init(void)
-{
-	imx6ul_enet_clk_init();
-}
-
 static void __init imx6ul_init_machine(void)
 {
 	imx_print_silicon_rev(cpu_is_imx6ull() ? "i.MX6ULL" : "i.MX6UL",
 		imx_get_soc_revision());
 
 	of_platform_default_populate(NULL, NULL, NULL);
-	imx6ul_enet_init();
 	imx_anatop_init();
 	imx6ul_pm_init();
 }