diff options
| author | Finley Xiao <finley.xiao@rock-chips.com> | 2018-03-07 19:51:12 +0800 |
|---|---|---|
| committer | Tao Huang <huangtao@rock-chips.com> | 2018-07-19 09:14:52 +0800 |
| commit | 0658b847023f2b01f32f2bd2017f033e04b67918 (patch) | |
| tree | 65a49e53b17934071650055593c2bc8c9144538a /drivers/soc | |
| parent | d20c5570788e8d370faa5092ae34a14d3a9333a0 (diff) | |
soc: rockchip: pvtm: Add support to show temperature
Change-Id: Ibdf09a5a043e7f1a6d203513a6f22172e9e24c09
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/rockchip/rockchip_pvtm.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/soc/rockchip/rockchip_pvtm.c b/drivers/soc/rockchip/rockchip_pvtm.c index 2442baf885f5..cb24b96cf501 100644 --- a/drivers/soc/rockchip/rockchip_pvtm.c +++ b/drivers/soc/rockchip/rockchip_pvtm.c @@ -28,6 +28,7 @@ #include <linux/reset.h> #include <linux/slab.h> #include <linux/soc/rockchip/pvtm.h> +#include <linux/thermal.h> #define PX30_PVTM_CORE 0 #define PX30_PVTM_PMU 1 @@ -93,6 +94,7 @@ struct rockchip_pvtm { struct clk *clk; struct reset_control *rst; const struct rockchip_pvtm_channel *channel; + struct thermal_zone_device *tz; u32 (*get_value)(struct rockchip_pvtm *pvtm, unsigned int sub_ch, unsigned int time_us); void (*set_ring_sel)(struct rockchip_pvtm *pvtm, unsigned int sub_ch); @@ -108,13 +110,21 @@ static int pvtm_value_show(struct seq_file *s, void *data) { struct rockchip_pvtm *pvtm = (struct rockchip_pvtm *)s->private; u32 value; - int i; + int i, ret, cur_temp; if (!pvtm) { pr_err("pvtm struct NULL\n"); return -EINVAL; } + if (pvtm->tz && pvtm->tz->ops && pvtm->tz->ops->get_temp) { + ret = pvtm->tz->ops->get_temp(pvtm->tz, &cur_temp); + if (ret) + dev_err(pvtm->dev, "debug failed to get temp\n"); + else + seq_printf(s, "temp: %d ", cur_temp); + } + seq_puts(s, "pvtm: "); for (i = 0; i < pvtm->channel->num_sub; i++) { value = pvtm->get_value(pvtm, i, 1000); seq_printf(s, "%d ", value); @@ -477,10 +487,13 @@ MODULE_DEVICE_TABLE(of, rockchip_pvtm_match); static int rockchip_pvtm_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct device_node *np = pdev->dev.of_node; const struct of_device_id *match; const struct rockchip_pvtm_info *info; struct rockchip_pvtm *pvtm; struct regmap *grf; + struct thermal_zone_device *pvtm_tz = NULL; + const char *tz_name; int i; match = of_match_device(dev->driver->of_match_table, dev); @@ -503,6 +516,14 @@ static int rockchip_pvtm_probe(struct platform_device *pdev) if (!pvtm) return -ENOMEM; + if (!of_property_read_string(np, "thermal-zone", &tz_name)) { + pvtm_tz = thermal_zone_get_zone_by_name(tz_name); + if (IS_ERR(pvtm_tz)) { + dev_err(dev, "debug failed to get pvtm_tz\n"); + pvtm_tz = NULL; + } + } + for (i = 0; i < info->num_channels; i++) { pvtm[i].dev = &pdev->dev; pvtm[i].grf = grf; @@ -510,6 +531,7 @@ static int rockchip_pvtm_probe(struct platform_device *pdev) pvtm[i].sta = info->sta; pvtm[i].get_value = info->get_value; pvtm[i].channel = &info->channels[i]; + pvtm[i].tz = pvtm_tz; if (info->set_ring_sel) pvtm[i].set_ring_sel = info->set_ring_sel; |