From dcfc31f82d19990131d28f38077aea350290fa25 Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Sat, 29 Aug 2015 21:08:13 -0700
Subject: [PATCH] PSP2: Increase clock rate, if possible

---
 src/platform/psp2/CMakeLists.txt | 2 +-
 src/platform/psp2/psp2-context.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/platform/psp2/CMakeLists.txt b/src/platform/psp2/CMakeLists.txt
index a4cb16122..b94b54384 100644
--- a/src/platform/psp2/CMakeLists.txt
+++ b/src/platform/psp2/CMakeLists.txt
@@ -2,7 +2,7 @@ file(GLOB PLATFORM_SRC ${CMAKE_SOURCE_DIR}/src/platform/psp2/*.c)
 
 execute_process(COMMAND ${OBJCOPY} -I binary -O elf32-littlearm -B arm font.png ${CMAKE_BINARY_DIR}/font.o WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/res)
 
-set(PLATFORM_LIBRARY -lvita2d -lSceCtrl_stub -lSceRtc_stub -lSceGxm_stub -lSceDisplay_stub -lSceAudio_stub -lSceMotion_stub -lpng -lz -l${M_LIBRARY})
+set(PLATFORM_LIBRARY -lvita2d -lSceCtrl_stub -lSceRtc_stub -lSceGxm_stub -lSceDisplay_stub -lSceAudio_stub -lSceMotion_stub -lScePower_stub -lpng -lz -l${M_LIBRARY})
 
 add_executable(${BINARY_NAME}.elf ${PLATFORM_SRC} ${GUI_SRC} ${CMAKE_BINARY_DIR}/font.o)
 target_link_libraries(${BINARY_NAME}.elf ${BINARY_NAME} ${PLATFORM_LIBRARY})
diff --git a/src/platform/psp2/psp2-context.c b/src/platform/psp2/psp2-context.c
index ab1b844b7..a8d82be40 100644
--- a/src/platform/psp2/psp2-context.c
+++ b/src/platform/psp2/psp2-context.c
@@ -24,6 +24,7 @@
 #include <psp2/gxm.h>
 #include <psp2/kernel/sysmem.h>
 #include <psp2/motion.h>
+#include <psp2/power.h>
 
 #include <vita2d.h>
 
@@ -103,6 +104,7 @@ static int32_t _readGyroZ(struct GBARotationSource* source) {
 }
 
 void GBAPSP2Setup() {
+	scePowerSetArmClockFrequency(80);
 	GBAContextInit(&context, 0);
 	struct GBAOptions opts = {
 		.useBios = true,
@@ -143,6 +145,7 @@ void GBAPSP2Setup() {
 }
 
 bool GBAPSP2LoadROM(const char* path) {
+	scePowerSetArmClockFrequency(444);
 	if (!GBAContextLoadROM(&context, path, true)) {
 		printf("%s failed to load!", path);
 		return false;
@@ -238,6 +241,7 @@ void GBAPSP2UnloadROM(void) {
 	}
 
 	GBAContextStop(&context);
+	scePowerSetArmClockFrequency(80);
 }
 
 void GBAPSP2Teardown(void) {