[PATCH 2/2] cpufreq: mediatek-hw: add support for mt8188

jia-wei.chang jia-wei.chang at mediatek.com
Fri Aug 5 02:12:11 PDT 2022


From: Jia-Wei Chang <jia-wei.chang at mediatek.com>

MT8188 mediatek-cpufreq-hw uses different register layout so it requires
a new compatible and platform data.

Signed-off-by: Jia-Wei Chang <jia-wei.chang at mediatek.com>
---
 drivers/cpufreq/mediatek-cpufreq-hw.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/cpufreq/mediatek-cpufreq-hw.c b/drivers/cpufreq/mediatek-cpufreq-hw.c
index f0e0a35c7f21..83ba87545ee7 100644
--- a/drivers/cpufreq/mediatek-cpufreq-hw.c
+++ b/drivers/cpufreq/mediatek-cpufreq-hw.c
@@ -50,6 +50,15 @@ static const u16 cpufreq_mtk_offsets[REG_ARRAY_SIZE] = {
 	[REG_FREQ_LATENCY]	= 0x110,
 };
 
+static const u16 cpufreq_mt8188_offsets[REG_ARRAY_SIZE] = {
+	[REG_FREQ_LUT_TABLE]	= 0x0,
+	[REG_FREQ_ENABLE]	= 0x84,
+	[REG_FREQ_PERF_STATE]	= 0x88,
+	[REG_FREQ_HW_STATE]	= 0x8c,
+	[REG_EM_POWER_TBL]	= 0x90,
+	[REG_FREQ_LATENCY]	= 0x114,
+};
+
 static int __maybe_unused
 mtk_cpufreq_get_cpu_power(struct device *cpu_dev, unsigned long *uW,
 			  unsigned long *KHz)
@@ -318,6 +327,7 @@ static int mtk_cpufreq_hw_driver_remove(struct platform_device *pdev)
 
 static const struct of_device_id mtk_cpufreq_hw_match[] = {
 	{ .compatible = "mediatek,cpufreq-hw", .data = &cpufreq_mtk_offsets },
+	{ .compatible = "mediatek,mt8188-cpufreq-hw", .data = &cpufreq_mt8188_offsets },
 	{}
 };
 
-- 
2.18.0




More information about the Linux-mediatek mailing list