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soc: rockchip_system_monitor: Add support to parse scmi clk and read margin

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Ensure that the device registers system monitor successfully when use
scmi clk or read margin, so that the volt_adjust_mutex is available.

Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Change-Id: Ieecaa763f0c423658259a05d9f843c7860673e44
This commit is contained in:
Finley Xiao
2022-01-04 14:44:18 +08:00
committed by Tao Huang
parent 88ff21e756
commit b3e993c5f9
1 changed files with 22 additions and 0 deletions
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22
drivers/soc/rockchip/rockchip_system_monitor.c
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@@ -5,6 +5,7 @@
*/
#include <dt-bindings/soc/rockchip-system-status.h>
#include <linux/clk-provider.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/devfreq.h>
@@ -666,6 +667,25 @@ static int monitor_device_parse_early_min_volt(struct device_node *np,
&info->early_min_volt);
}
static int monitor_device_parse_read_margin(struct device_node *np,
struct monitor_dev_info *info)
{
if (of_property_read_bool(np, "volt-mem-read-margin"))
return 0;
return -EINVAL;
}
static int monitor_device_parse_scmi_clk(struct device_node *np,
struct monitor_dev_info *info)
{
struct clk *clk;
clk = clk_get(info->dev, NULL);
if (strstr(__clk_get_name(clk), "scmi"))
return 0;
return -EINVAL;
}
static int monitor_device_parse_dt(struct device *dev,
struct monitor_dev_info *info)
{
@@ -681,6 +701,8 @@ static int monitor_device_parse_dt(struct device *dev,
ret = monitor_device_parse_wide_temp_config(np, info);
ret &= monitor_device_parse_status_config(np, info);
ret &= monitor_device_parse_early_min_volt(np, info);
ret &= monitor_device_parse_read_margin(np, info);
ret &= monitor_device_parse_scmi_clk(np, info);
of_node_put(np);