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cpufreq: rockchip: Implement get_soc_info() for rk3399 SoCs

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Change-Id: I73519f717e79a1cc4e713e31ba8ee6c78567353f
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
This commit is contained in:
Finley Xiao
2018-12-12 16:24:21 +08:00
committed by Tao Huang
parent f3d13938d8
commit cd0ae453a5
1 changed files with 33 additions and 0 deletions
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33
drivers/cpufreq/rockchip-cpufreq.c
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@@ -136,6 +136,35 @@ out:
return ret;
}
static int rk3399_get_soc_info(struct device *dev, struct device_node *np,
int *bin, int *process)
{
int ret = 0, value = -EINVAL;
if (!bin)
goto out;
if (of_property_match_string(np, "nvmem-cell-names",
"specification_serial_number") >= 0) {
ret = rockchip_get_efuse_value(np,
"specification_serial_number",
&value);
if (ret) {
dev_err(dev,
"Failed to get specification_serial_number\n");
goto out;
}
if (value == 0xb)
*bin = 0;
else
*bin = 1;
}
if (*bin >= 0)
dev_info(dev, "bin=%d\n", *bin);
out:
return ret;
}
static const struct of_device_id rockchip_cpufreq_of_match[] = {
{
.compatible = "rockchip,px30",
@@ -153,6 +182,10 @@ static const struct of_device_id rockchip_cpufreq_of_match[] = {
.compatible = "rockchip,rk3326",
.data = (void *)&px30_get_soc_info,
},
{
.compatible = "rockchip,rk3399",
.data = (void *)&rk3399_get_soc_info,
},
{},
};