1. Patchew
  2. linux
  3. [PATCH v2 0/3] thermal: rockchip: shut up GRF warning
  4. View patch

[PATCH v2 2/3] thermal: rockchip: shut up GRF warning

Sebastian Reichel posted 3 patches 1 month, 2 weeks ago
[PATCH v2 2/3] thermal: rockchip: shut up GRF warning
Posted by Sebastian Reichel 1 month, 2 weeks ago 
Most of the recent Rockchip devices do not have a GRF associated
with the tsadc IP. Let's avoid printing a warning on those devices.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/thermal/rockchip_thermal.c | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index 7b18a705dfade6fa7318b28c2b57544a4446c1cc..c49ddf70f86e7beaf0190b1b3e93f5e6b2f72b2c 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -74,6 +74,7 @@ struct chip_tsadc_table {
  * @tshut_temp: the hardware-controlled shutdown temperature value, with no trim
  * @tshut_mode: the hardware-controlled shutdown mode (0:CRU 1:GPIO)
  * @tshut_polarity: the hardware-controlled active polarity (0:LOW 1:HIGH)
+ * @grf_required: true, if a GRF is required for proper functionality
  * @initialize: SoC special initialize tsadc controller method
  * @irq_ack: clear the interrupt
  * @control: enable/disable method for the tsadc controller
@@ -97,6 +98,9 @@ struct rockchip_tsadc_chip {
 	enum tshut_mode tshut_mode;
 	enum tshut_polarity tshut_polarity;
 
+	/* GRF availability */
+	bool grf_required;
+
 	/* Chip-wide methods */
 	void (*initialize)(struct regmap *grf,
 			   void __iomem *reg, enum tshut_polarity p);
@@ -1098,6 +1102,7 @@ static const struct rockchip_tsadc_chip px30_tsadc_data = {
 	/* cpu, gpu */
 	.chn_offset = 0,
 	.chn_num = 2, /* 2 channels for tsadc */
+	.grf_required = true,
 	.tshut_mode = TSHUT_MODE_CRU, /* default TSHUT via CRU */
 	.tshut_temp = 95000,
 	.initialize = rk_tsadcv4_initialize,
@@ -1119,6 +1124,7 @@ static const struct rockchip_tsadc_chip rv1108_tsadc_data = {
 	/* cpu */
 	.chn_offset = 0,
 	.chn_num = 1, /* one channel for tsadc */
+	.grf_required = false,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1141,6 +1147,7 @@ static const struct rockchip_tsadc_chip rk3228_tsadc_data = {
 	/* cpu */
 	.chn_offset = 0,
 	.chn_num = 1, /* one channel for tsadc */
+	.grf_required = false,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1163,6 +1170,7 @@ static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
 	/* cpu, gpu */
 	.chn_offset = 1,
 	.chn_num = 2, /* two channels for tsadc */
+	.grf_required = false,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1185,6 +1193,7 @@ static const struct rockchip_tsadc_chip rk3328_tsadc_data = {
 	/* cpu */
 	.chn_offset = 0,
 	.chn_num = 1, /* one channels for tsadc */
+	.grf_required = false,
 	.tshut_mode = TSHUT_MODE_CRU, /* default TSHUT via CRU */
 	.tshut_temp = 95000,
 	.initialize = rk_tsadcv2_initialize,
@@ -1206,6 +1215,7 @@ static const struct rockchip_tsadc_chip rk3366_tsadc_data = {
 	/* cpu, gpu */
 	.chn_offset = 0,
 	.chn_num = 2, /* two channels for tsadc */
+	.grf_required = true,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1228,6 +1238,7 @@ static const struct rockchip_tsadc_chip rk3368_tsadc_data = {
 	/* cpu, gpu */
 	.chn_offset = 0,
 	.chn_num = 2, /* two channels for tsadc */
+	.grf_required = false,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1250,6 +1261,7 @@ static const struct rockchip_tsadc_chip rk3399_tsadc_data = {
 	/* cpu, gpu */
 	.chn_offset = 0,
 	.chn_num = 2, /* two channels for tsadc */
+	.grf_required = true,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1272,6 +1284,7 @@ static const struct rockchip_tsadc_chip rk3568_tsadc_data = {
 	/* cpu, gpu */
 	.chn_offset = 0,
 	.chn_num = 2, /* two channels for tsadc */
+	.grf_required = true,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1294,6 +1307,7 @@ static const struct rockchip_tsadc_chip rk3576_tsadc_data = {
 	/* top, big_core, little_core, ddr, npu, gpu */
 	.chn_offset = 0,
 	.chn_num = 6, /* six channels for tsadc */
+	.grf_required = false,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1318,6 +1332,7 @@ static const struct rockchip_tsadc_chip rk3588_tsadc_data = {
 	/* top, big_core0, big_core1, little_core, center, gpu, npu */
 	.chn_offset = 0,
 	.chn_num = 7, /* seven channels for tsadc */
+	.grf_required = false,
 	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
 	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
 	.tshut_temp = 95000,
@@ -1594,12 +1609,10 @@ static int rockchip_configure_from_dt(struct device *dev,
 		return -EINVAL;
 	}
 
-	/* The tsadc wont to handle the error in here since some SoCs didn't
-	 * need this property.
-	 */
 	thermal->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
-	if (IS_ERR(thermal->grf))
-		dev_warn(dev, "Missing rockchip,grf property\n");
+	if (IS_ERR(thermal->grf) && thermal->chip->grf_required)
+		return dev_err_probe(dev, PTR_ERR(thermal->grf),
+				     "Missing rockchip,grf property\n");
 
 	rockchip_get_trim_configuration(dev, np, thermal);
 

-- 
2.50.1
Re: [PATCH v2 2/3] thermal: rockchip: shut up GRF warning
Posted by Dragan Simic 1 month, 1 week ago 
Hello Sebastian,

On 2025-08-20 19:40, Sebastian Reichel wrote:
> Most of the recent Rockchip devices do not have a GRF associated
> with the tsadc IP. Let's avoid printing a warning on those devices.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>  drivers/thermal/rockchip_thermal.c | 23 ++++++++++++++++++-----
>  1 file changed, 18 insertions(+), 5 deletions(-)

Thanks for the patch!  It's looking good to me, and it's virtually
identical to my rather old patch that I implemented a while ago, but
never submitted to the mailing list(s).

Please feel free to include

Reviewed-by: Dragan Simic <dsimic@manjaro.org>

> diff --git a/drivers/thermal/rockchip_thermal.c
> b/drivers/thermal/rockchip_thermal.c
> index
> 7b18a705dfade6fa7318b28c2b57544a4446c1cc..c49ddf70f86e7beaf0190b1b3e93f5e6b2f72b2c
> 100644
> --- a/drivers/thermal/rockchip_thermal.c
> +++ b/drivers/thermal/rockchip_thermal.c
> @@ -74,6 +74,7 @@ struct chip_tsadc_table {
>   * @tshut_temp: the hardware-controlled shutdown temperature value,
> with no trim
>   * @tshut_mode: the hardware-controlled shutdown mode (0:CRU 1:GPIO)
>   * @tshut_polarity: the hardware-controlled active polarity (0:LOW 
> 1:HIGH)
> + * @grf_required: true, if a GRF is required for proper functionality
>   * @initialize: SoC special initialize tsadc controller method
>   * @irq_ack: clear the interrupt
>   * @control: enable/disable method for the tsadc controller
> @@ -97,6 +98,9 @@ struct rockchip_tsadc_chip {
>  	enum tshut_mode tshut_mode;
>  	enum tshut_polarity tshut_polarity;
> 
> +	/* GRF availability */
> +	bool grf_required;
> +
>  	/* Chip-wide methods */
>  	void (*initialize)(struct regmap *grf,
>  			   void __iomem *reg, enum tshut_polarity p);
> @@ -1098,6 +1102,7 @@ static const struct rockchip_tsadc_chip
> px30_tsadc_data = {
>  	/* cpu, gpu */
>  	.chn_offset = 0,
>  	.chn_num = 2, /* 2 channels for tsadc */
> +	.grf_required = true,
>  	.tshut_mode = TSHUT_MODE_CRU, /* default TSHUT via CRU */
>  	.tshut_temp = 95000,
>  	.initialize = rk_tsadcv4_initialize,
> @@ -1119,6 +1124,7 @@ static const struct rockchip_tsadc_chip
> rv1108_tsadc_data = {
>  	/* cpu */
>  	.chn_offset = 0,
>  	.chn_num = 1, /* one channel for tsadc */
> +	.grf_required = false,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1141,6 +1147,7 @@ static const struct rockchip_tsadc_chip
> rk3228_tsadc_data = {
>  	/* cpu */
>  	.chn_offset = 0,
>  	.chn_num = 1, /* one channel for tsadc */
> +	.grf_required = false,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1163,6 +1170,7 @@ static const struct rockchip_tsadc_chip
> rk3288_tsadc_data = {
>  	/* cpu, gpu */
>  	.chn_offset = 1,
>  	.chn_num = 2, /* two channels for tsadc */
> +	.grf_required = false,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1185,6 +1193,7 @@ static const struct rockchip_tsadc_chip
> rk3328_tsadc_data = {
>  	/* cpu */
>  	.chn_offset = 0,
>  	.chn_num = 1, /* one channels for tsadc */
> +	.grf_required = false,
>  	.tshut_mode = TSHUT_MODE_CRU, /* default TSHUT via CRU */
>  	.tshut_temp = 95000,
>  	.initialize = rk_tsadcv2_initialize,
> @@ -1206,6 +1215,7 @@ static const struct rockchip_tsadc_chip
> rk3366_tsadc_data = {
>  	/* cpu, gpu */
>  	.chn_offset = 0,
>  	.chn_num = 2, /* two channels for tsadc */
> +	.grf_required = true,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1228,6 +1238,7 @@ static const struct rockchip_tsadc_chip
> rk3368_tsadc_data = {
>  	/* cpu, gpu */
>  	.chn_offset = 0,
>  	.chn_num = 2, /* two channels for tsadc */
> +	.grf_required = false,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1250,6 +1261,7 @@ static const struct rockchip_tsadc_chip
> rk3399_tsadc_data = {
>  	/* cpu, gpu */
>  	.chn_offset = 0,
>  	.chn_num = 2, /* two channels for tsadc */
> +	.grf_required = true,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1272,6 +1284,7 @@ static const struct rockchip_tsadc_chip
> rk3568_tsadc_data = {
>  	/* cpu, gpu */
>  	.chn_offset = 0,
>  	.chn_num = 2, /* two channels for tsadc */
> +	.grf_required = true,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1294,6 +1307,7 @@ static const struct rockchip_tsadc_chip
> rk3576_tsadc_data = {
>  	/* top, big_core, little_core, ddr, npu, gpu */
>  	.chn_offset = 0,
>  	.chn_num = 6, /* six channels for tsadc */
> +	.grf_required = false,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1318,6 +1332,7 @@ static const struct rockchip_tsadc_chip
> rk3588_tsadc_data = {
>  	/* top, big_core0, big_core1, little_core, center, gpu, npu */
>  	.chn_offset = 0,
>  	.chn_num = 7, /* seven channels for tsadc */
> +	.grf_required = false,
>  	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
>  	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
>  	.tshut_temp = 95000,
> @@ -1594,12 +1609,10 @@ static int rockchip_configure_from_dt(struct
> device *dev,
>  		return -EINVAL;
>  	}
> 
> -	/* The tsadc wont to handle the error in here since some SoCs didn't
> -	 * need this property.
> -	 */
>  	thermal->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
> -	if (IS_ERR(thermal->grf))
> -		dev_warn(dev, "Missing rockchip,grf property\n");
> +	if (IS_ERR(thermal->grf) && thermal->chip->grf_required)
> +		return dev_err_probe(dev, PTR_ERR(thermal->grf),
> +				     "Missing rockchip,grf property\n");
> 
>  	rockchip_get_trim_configuration(dev, np, thermal);
Re: [PATCH v2 2/3] thermal: rockchip: shut up GRF warning
Posted by Diederik de Haas 1 month, 1 week ago 
On Wed Aug 20, 2025 at 7:40 PM CEST, Sebastian Reichel wrote:
> Most of the recent Rockchip devices do not have a GRF associated
> with the tsadc IP. Let's avoid printing a warning on those devices.

Retested with v2 of this patch (set) and there were still no regressions
on Rock64 (rk3328), RockPro64 (rk3399) and Quartz64-B (rk3566).
I skipped testing my NanoPi R5S (rk3568) this time.

And on Rock 5B (rk3588) I (still) no longer see this warning:

  rockchip-thermal fec00000.tsadc: Missing rockchip,grf property

So also with v2:

Tested-by: Diederik de Haas <didi.debian@cknow.org>

Cheers,
  Diederik

> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>  drivers/thermal/rockchip_thermal.c | 23 ++++++++++++++++++-----
>  1 file changed, 18 insertions(+), 5 deletions(-)

Patchew 2.1-devel-b67e4c2

© 2016 - 2025 Red Hat, Inc.