msm8996: Overclocking with cmdline option

flar2 · Mar 7, 2018 · cb67550 · cb67550
1 parent 5acc638
commit cb67550
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Showing 2 changed files with 58 additions and 8 deletions.
diff --git a/arch/arm/boot/dts/qcom/msm8996-v3.dtsi b/arch/arm/boot/dts/qcom/msm8996-v3.dtsi
@@ -482,7 +482,8 @@
 			< 1324800000 13 >,
 			< 1401600000 14 >,
 			< 1478400000 15 >,
-			< 1593600000 16 >;
+			< 1593600000 16 >,
+			< 1728000000 16 >;
 		qcom,pwrcl-speedbin1-v0 =
 			<          0  0 >,
 			<  307200000  1 >,
@@ -541,7 +542,8 @@
 			< 1920000000 22 >,
 			< 1996800000 23 >,
 			< 2073600000 24 >,
-			< 2150400000 25 >;
+			< 2150400000 25 >,
+			< 2265600000 25 >;
 		qcom,perfcl-speedbin1-v0 =
 			<          0  0 >,
 			<  307200000  1 >,
@@ -663,7 +665,8 @@
 		< 1324800 >,
 		< 1401600 >,
 		< 1478400 >,
-		< 1593600 >;
+		< 1593600 >,
+		< 1728000 >;
 	qcom,cpufreq-table-2 =
 		<  307200 >,
 		<  403200 >,
@@ -689,7 +692,8 @@
 		< 1920000 >,
 		< 1996800 >,
 		< 2073600 >,
-		< 2150400 >;
+		< 2150400 >,
+		< 2265600 >;
 };
 
 &m4m_cache {
@@ -733,7 +737,8 @@
 			< 1324800  1056000 >,
 			< 1401600  1132800 >,
 			< 1478400  1190400 >,
-			< 1593600  1382400 >;
+			< 1593600  1382400 >,
+			< 1728000  1382400 >;
 		cpu-to-dev-map-2 =
 			<  480000  307200 >,
 			<  556800  307200 >,
@@ -757,15 +762,17 @@
 			< 1920000 1459200 >,
 			< 1996800 1593600 >,
 			< 2073600 1593600 >,
-			< 2150400 1593600 >;
+			< 2150400 1593600 >,
+			< 2265600 1593600 >;
 	};
 
 	mincpubw-cpufreq {
 		cpu-to-dev-map-0 =
-			< 1593600 1525 >;
+			< 1728000 1525 >;
 		cpu-to-dev-map-2 =
 			< 2073600 1525 >,
-			< 2150400 5195 >;
+			< 2150400 5195 >,
+			< 2265600 5195 >;
 	};
 };
 

diff --git a/drivers/cpufreq/qcom-cpufreq.c b/drivers/cpufreq/qcom-cpufreq.c
@@ -35,6 +35,42 @@
 
 static DEFINE_MUTEX(l2bw_lock);
 
+
+static unsigned long arg_cpu_max_c1 = 1593600;
+
+static int __init cpufreq_read_cpu_max_c1(char *cpu_max_c1)
+{
+	unsigned long ui_khz;
+	int ret;
+
+	ret = kstrtoul(cpu_max_c1, 0, &ui_khz);
+	if (ret)
+		return -EINVAL;
+
+	arg_cpu_max_c1 = ui_khz;
+	printk("cpu_max_c1=%lu\n", arg_cpu_max_c1);
+	return ret;
+}
+__setup("cpu_max_c1=", cpufreq_read_cpu_max_c1);
+
+static unsigned long arg_cpu_max_c2 = 2150400;
+
+static int __init cpufreq_read_cpu_max_c2(char *cpu_max_c2)
+{
+	unsigned long ui_khz;
+	int ret;
+
+	ret = kstrtoul(cpu_max_c2, 0, &ui_khz);
+	if (ret)
+		return -EINVAL;
+
+	arg_cpu_max_c2 = ui_khz;
+	printk("cpu_max_c2=%lu\n", arg_cpu_max_c2);
+	return ret;
+}
+__setup("cpu_max_c2=", cpufreq_read_cpu_max_c2);
+
+
 static struct clk *cpu_clk[NR_CPUS];
 static struct clk *l2_clk;
 static DEFINE_PER_CPU(struct cpufreq_frequency_table *, freq_table);
@@ -400,6 +436,13 @@ static struct cpufreq_frequency_table *cpufreq_parse_dt(struct device *dev,
 		if (i > 0 && f <= ftbl[i-1].frequency)
 			break;
 
+		//Custom max freq
+		if ((cpu < 2 && f > arg_cpu_max_c1) ||
+				(cpu >= 2 && f > arg_cpu_max_c2)) {
+			nf = i;
+			break;
+		}
+
 		ftbl[i].driver_data = i;
 		ftbl[i].frequency = f;
 	}