[RFC PATCH 4/9] cpufreq: qcom: support qcs404 on nvmem driver

[Niklas Cassel]

From: Jorge Ramirez-Ortiz <jorge.ramirez-or...@linaro.org>

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-or...@linaro.org>
Co-developed-by: Niklas Cassel <niklas.cas...@linaro.org>
Signed-off-by: Niklas Cassel <niklas.cas...@linaro.org>
---
 drivers/cpufreq/qcom-cpufreq-nvmem.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c 
b/drivers/cpufreq/qcom-cpufreq-nvmem.c
index 366c65a7132a..7fdc38218390 100644
--- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
+++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
@@ -24,6 +24,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/pm_domain.h>
 #include <linux/pm_opp.h>
 #include <linux/slab.h>
 #include <linux/soc/qcom/smem.h>
@@ -79,6 +80,13 @@ static enum _msm8996_version qcom_cpufreq_get_msm_id(void)
        return version;
 }
 
+static int qcom_cpufreq_qcs404_name_version(struct device *cpu_dev,
+                                           struct nvmem_cell *speedbin_nvmem,
+                                           struct qcom_cpufreq_drv *drv)
+{
+       return 0;
+}
+
 static int qcom_cpufreq_kryo_name_version(struct device *cpu_dev,
                                          struct nvmem_cell *speedbin_nvmem,
                                          struct qcom_cpufreq_drv *drv)
@@ -191,6 +199,14 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
                        dev_err(cpu_dev, "Failed to set supported hardware\n");
                        goto free_opp;
                }
+
+               ret = dev_pm_domain_attach(cpu_dev, false);
+               if (ret) {
+                       if (ret == -EPROBE_DEFER)
+                               goto free_opp;
+                       dev_err(cpu_dev, "Could not attach to pm_domain: %d\n",
+                               ret);
+               }
        }
 
        cpufreq_dt_pdev = platform_device_register_simple("cpufreq-dt", -1,
@@ -247,6 +263,8 @@ static const struct of_device_id qcom_cpufreq_match_list[] 
__initconst = {
          .data = qcom_cpufreq_kryo_name_version },
        { .compatible = "qcom,msm8996",
          .data = qcom_cpufreq_kryo_name_version },
+       { .compatible = "qcom,qcs404",
+         .data = qcom_cpufreq_qcs404_name_version },
        {},
 };
 
-- 
2.20.1