[PATCH v3 2/6] thermal/drivers/sun8i: add gpadc clock

iuncuim
2025-10-25T04:32:26Z

Some processors (e.g. Allwinner A523) require GPADC clocking activation for
temperature sensors to work. So let's add support for enabling it.

Signed-off-by: Mikhail Kalashnikov <iuncuim@gmail.com>
---
drivers/thermal/sun8i_thermal.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c
index 226747906..c02c398b0 100644
--- a/drivers/thermal/sun8i_thermal.c
+++ b/drivers/thermal/sun8i_thermal.c
@@ -66,6 +66,7 @@ struct tsensor {
};

struct ths_thermal_chip {
+ bool has_gpadc_clk;
bool has_mod_clk;
bool has_bus_clk_reset;
bool needs_sram;
@@ -89,6 +90,7 @@ struct ths_device {
struct regmap_field *sram_regmap_field;
struct reset_control *reset;
struct clk *bus_clk;
+ struct clk *gpadc_clk;
struct clk *mod_clk;
struct tsensor sensor[MAX_SENSOR_NUM];
};
@@ -417,6 +419,12 @@ static int sun8i_ths_resource_init(struct ths_device *tmdev)
if (ret)
return ret;

+ if (tmdev->chip->has_gpadc_clk) {
+ tmdev->gpadc_clk = devm_clk_get_enabled(&pdev->dev, "gpadc");
+ if (IS_ERR(tmdev->gpadc_clk))
+ return PTR_ERR(tmdev->gpadc_clk);
+ }
+
if (tmdev->chip->needs_sram) {
struct regmap *regmap;

--
2.51.0