[PATCH v1 3/4] mach-snapdragon: fixup power-domains

Aswin Murugan aswin.murugan at oss.qualcomm.com
Thu Jun 26 13:24:40 CEST 2025


Earlier, all of the RPMH power domain properties were initially
removed from the device tree due to the absence of driver support.
Since support for SA8775P_MMCX and SA8775P_MMCX_AO has now been
added in the RPMH Power Domain Driver for the SA8775P platform,
remove only SA8775P_CX entries.

Signed-off-by: Aswin Murugan <aswin.murugan at oss.qualcomm.com>
---
 arch/arm/mach-snapdragon/Kconfig    | 7 +++++++
 arch/arm/mach-snapdragon/of_fixup.c | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/arch/arm/mach-snapdragon/Kconfig b/arch/arm/mach-snapdragon/Kconfig
index 976c0e35fce..28e564889bc 100644
--- a/arch/arm/mach-snapdragon/Kconfig
+++ b/arch/arm/mach-snapdragon/Kconfig
@@ -1,5 +1,12 @@
 if ARCH_SNAPDRAGON
 
+config OF_LIVE_SA8775P
+	bool "Enable OF LIVE SA8775P"
+	select OF_LIVE
+	help
+	  Say Y here to enable support for OF LIVE fixups
+	  on the Snapdragon SA8775 SoC.
+
 config SYS_SOC
 	default "snapdragon"
 
diff --git a/arch/arm/mach-snapdragon/of_fixup.c b/arch/arm/mach-snapdragon/of_fixup.c
index b398c6b7b9f..456261eeae2 100644
--- a/arch/arm/mach-snapdragon/of_fixup.c
+++ b/arch/arm/mach-snapdragon/of_fixup.c
@@ -19,6 +19,7 @@
 #define pr_fmt(fmt) "of_fixup: " fmt
 
 #include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/power/qcom-rpmpd.h>
 #include <dm/of_access.h>
 #include <dm/of.h>
 #include <event.h>
@@ -155,6 +156,11 @@ static void fixup_power_domains(struct device_node *root)
 
 		val = prop->value;
 		if (val[0] == cpu_to_fdt32(pd->phandle))
+			/* Check if the rpmh power domain is SA8775P_CX and remove it */
+			if (IS_ENABLED(CONFIG_OF_LIVE_SA8775P) &&
+			    (val[1] != cpu_to_fdt32(SA8775P_CX))
+					continue;
+
 			of_remove_property(np, prop);
 	}
 }
-- 
2.34.1



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