linux-kernel - [PATCH v2 5/5] cpufreq: qcom-hw: Add cpufreq support for SM8250 SoC

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Date:   Tue, 15 Sep 2020 12:54:23 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     rjw@...ysocki.net, viresh.kumar@...aro.org, robh+dt@...nel.org,
        agross@...nel.org, bjorn.andersson@...aro.org
Cc:     amitk@...nel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, dmitry.baryshkov@...aro.org,
        tdas@...eaurora.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH v2 5/5] cpufreq: qcom-hw: Add cpufreq support for SM8250 SoC

SM8250 SoC uses EPSS block for carrying out the cpufreq duties. Hence, add
support for it in the driver with relevant dev data.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Reviewed-by: Amit Kucheria <amitk@...nel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 drivers/cpufreq/qcom-cpufreq-hw.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c
index e3c46984a037..c485be839172 100644
--- a/drivers/cpufreq/qcom-cpufreq-hw.c
+++ b/drivers/cpufreq/qcom-cpufreq-hw.c
@@ -256,8 +256,17 @@ static const struct qcom_cpufreq_soc_data qcom_soc_data = {
 	.lut_row_size = 32,
 };
 
+static const struct qcom_cpufreq_soc_data epss_soc_data = {
+	.reg_enable = 0x0,
+	.reg_freq_lut = 0x100,
+	.reg_volt_lut = 0x200,
+	.reg_perf_state = 0x320,
+	.lut_row_size = 4,
+};
+
 static const struct of_device_id qcom_cpufreq_hw_match[] = {
 	{ .compatible = "qcom,cpufreq-hw", .data = &qcom_soc_data },
+	{ .compatible = "qcom,cpufreq-epss", .data = &epss_soc_data },
 	{}
 };
 MODULE_DEVICE_TABLE(of, qcom_cpufreq_hw_match);
-- 
2.17.1