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* [PATCH v1 03/17] thermal: Remove debug or error messages in get_temp() ops
       [not found] <20230219143657.241542-1-daniel.lezcano@linaro.org>
@ 2023-02-19 14:36 ` Daniel Lezcano
  2023-02-20  8:58   ` Miquel Raynal
  2023-02-19 14:36 ` [PATCH v1 04/17] thermal/hwmon: Do not set no_hwmon before calling thermal_add_hwmon_sysfs() Daniel Lezcano
  1 sibling, 1 reply; 4+ messages in thread
From: Daniel Lezcano @ 2023-02-19 14:36 UTC (permalink / raw)
  To: rafael, daniel.lezcano
  Cc: linux-pm, linux-kernel, Miquel Raynal, Amit Kucheria, Zhang Rui,
	Markus Mayer, Broadcom internal kernel review list,
	Florian Fainelli, Shawn Guo, Sascha Hauer,
	Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
	Heiko Stuebner, moderated list:BROADCOM BCM7XXX ARM ARCHITECTURE,
	open list:ARM/Rockchip SoC support

Some get_temp() ops implementation are showing an error or a debug
message if the reading of the sensor fails.

The debug message is already displayed from the call site of this
ops. So we can remove it.

On the other side, the error should not be displayed because in
production that can raise tons of messages.

Finally, some drivers are showing a debug message with the
temperature, this is also accessible through the trace from the core
code in the temperature_update() function.

Another benefit is the dev_* messages are accessing the thermal zone
device field from the structure, so we encapsulate even more the code
by preventing these accesses.

Remove those messages.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/thermal/armada_thermal.c           | 10 ++--------
 drivers/thermal/broadcom/brcmstb_thermal.c |  4 +---
 drivers/thermal/dove_thermal.c             |  5 +----
 drivers/thermal/hisi_thermal.c             |  3 ---
 drivers/thermal/imx_sc_thermal.c           |  5 +----
 drivers/thermal/imx_thermal.c              |  4 +---
 drivers/thermal/kirkwood_thermal.c         |  5 +----
 drivers/thermal/max77620_thermal.c         |  4 +---
 drivers/thermal/rockchip_thermal.c         |  3 ---
 drivers/thermal/st/st_thermal.c            |  2 --
 drivers/thermal/thermal-generic-adc.c      |  5 ++---
 11 files changed, 10 insertions(+), 40 deletions(-)

diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index 82d3e15d51f6..9bbebde09dc4 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -360,11 +360,8 @@ static int armada_select_channel(struct armada_thermal_priv *priv, int channel)
 	 * we must absolutely wait for the sensor validity bit to ensure we read
 	 * actual data.
 	 */
-	if (armada_wait_sensor_validity(priv)) {
-		dev_err(priv->dev,
-			"Temperature sensor reading not valid\n");
+	if (armada_wait_sensor_validity(priv))
 		return -EIO;
-	}
 
 	return 0;
 }
@@ -402,11 +399,8 @@ static int armada_get_temp_legacy(struct thermal_zone_device *thermal,
 	int ret;
 
 	/* Valid check */
-	if (!armada_is_valid(priv)) {
-		dev_err(priv->dev,
-			"Temperature sensor reading not valid\n");
+	if (!armada_is_valid(priv))
 		return -EIO;
-	}
 
 	/* Do the actual reading */
 	ret = armada_read_sensor(priv, temp);
diff --git a/drivers/thermal/broadcom/brcmstb_thermal.c b/drivers/thermal/broadcom/brcmstb_thermal.c
index 668cdc16b108..ae1981506da0 100644
--- a/drivers/thermal/broadcom/brcmstb_thermal.c
+++ b/drivers/thermal/broadcom/brcmstb_thermal.c
@@ -158,10 +158,8 @@ static int brcmstb_get_temp(struct thermal_zone_device *tz, int *temp)
 
 	val = __raw_readl(priv->tmon_base + AVS_TMON_STATUS);
 
-	if (!(val & AVS_TMON_STATUS_valid_msk)) {
-		dev_err(priv->dev, "reading not valid\n");
+	if (!(val & AVS_TMON_STATUS_valid_msk))
 		return -EIO;
-	}
 
 	val = (val & AVS_TMON_STATUS_data_msk) >> AVS_TMON_STATUS_data_shift;
 
diff --git a/drivers/thermal/dove_thermal.c b/drivers/thermal/dove_thermal.c
index ed7d1173d9fd..9cd54740713f 100644
--- a/drivers/thermal/dove_thermal.c
+++ b/drivers/thermal/dove_thermal.c
@@ -91,11 +91,8 @@ static int dove_get_temp(struct thermal_zone_device *thermal,
 
 	/* Valid check */
 	reg = readl_relaxed(priv->control + PMU_TEMP_DIOD_CTRL1_REG);
-	if ((reg & PMU_TDC1_TEMP_VALID_MASK) == 0x0) {
-		dev_err(&thermal->device,
-			"Temperature sensor reading not valid\n");
+	if ((reg & PMU_TDC1_TEMP_VALID_MASK) == 0x0)
 		return -EIO;
-	}
 
 	/*
 	 * Calculate temperature. According to Marvell internal
diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 043751e6a31d..1e13fe80a9f3 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -436,9 +436,6 @@ static int hisi_thermal_get_temp(struct thermal_zone_device *tz, int *temp)
 
 	*temp = data->ops->get_temp(sensor);
 
-	dev_dbg(&data->pdev->dev, "tzd=%p, id=%d, temp=%d, thres=%d\n",
-		sensor->tzd, sensor->id, *temp, sensor->thres_temp);
-
 	return 0;
 }
 
diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c
index ca10d6a68f0f..26102d1c6bde 100644
--- a/drivers/thermal/imx_sc_thermal.c
+++ b/drivers/thermal/imx_sc_thermal.c
@@ -58,11 +58,8 @@ static int imx_sc_thermal_get_temp(struct thermal_zone_device *tz, int *temp)
 	hdr->size = 2;
 
 	ret = imx_scu_call_rpc(thermal_ipc_handle, &msg, true);
-	if (ret) {
-		dev_err(&sensor->tzd->device, "read temp sensor %d failed, ret %d\n",
-			sensor->resource_id, ret);
+	if (ret)
 		return ret;
-	}
 
 	*temp = msg.data.resp.celsius * 1000 + msg.data.resp.tenths * 100;
 
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index c3c14cd26aee..f621b778b0f0 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -265,10 +265,8 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
 
 	regmap_read(map, soc_data->temp_data, &val);
 
-	if ((val & soc_data->temp_valid_mask) == 0) {
-		dev_dbg(&tz->device, "temp measurement never finished\n");
+	if ((val & soc_data->temp_valid_mask) == 0)
 		return -EAGAIN;
-	}
 
 	n_meas = (val & soc_data->temp_value_mask)
 		>> soc_data->temp_value_shift;
diff --git a/drivers/thermal/kirkwood_thermal.c b/drivers/thermal/kirkwood_thermal.c
index 8e39c875ba58..f8c098a262fa 100644
--- a/drivers/thermal/kirkwood_thermal.c
+++ b/drivers/thermal/kirkwood_thermal.c
@@ -33,11 +33,8 @@ static int kirkwood_get_temp(struct thermal_zone_device *thermal,
 
 	/* Valid check */
 	if (!((reg >> KIRKWOOD_THERMAL_VALID_OFFSET) &
-	    KIRKWOOD_THERMAL_VALID_MASK)) {
-		dev_err(&thermal->device,
-			"Temperature sensor reading not valid\n");
+	    KIRKWOOD_THERMAL_VALID_MASK))
 		return -EIO;
-	}
 
 	/*
 	 * Calculate temperature. According to Marvell internal
diff --git a/drivers/thermal/max77620_thermal.c b/drivers/thermal/max77620_thermal.c
index 05b6e9a2a283..1dad8cb00735 100644
--- a/drivers/thermal/max77620_thermal.c
+++ b/drivers/thermal/max77620_thermal.c
@@ -51,10 +51,8 @@ static int max77620_thermal_read_temp(struct thermal_zone_device *tz, int *temp)
 	int ret;
 
 	ret = regmap_read(mtherm->rmap, MAX77620_REG_STATLBT, &val);
-	if (ret < 0) {
-		dev_err(mtherm->dev, "Failed to read STATLBT: %d\n", ret);
+	if (ret < 0)
 		return ret;
-	}
 
 	if (val & MAX77620_IRQ_TJALRM2_MASK)
 		*temp = MAX77620_TJALARM2_TEMP;
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index dafbdbb7c0c0..bd593ec712ee 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -1233,9 +1233,6 @@ static int rockchip_thermal_get_temp(struct thermal_zone_device *tz, int *out_te
 
 	retval = tsadc->get_temp(&tsadc->table,
 				 sensor->id, thermal->regs, out_temp);
-	dev_dbg(&thermal->pdev->dev, "sensor %d - temp: %d, retval: %d\n",
-		sensor->id, *out_temp, retval);
-
 	return retval;
 }
 
diff --git a/drivers/thermal/st/st_thermal.c b/drivers/thermal/st/st_thermal.c
index 1009f08e64e3..4d39626a4345 100644
--- a/drivers/thermal/st/st_thermal.c
+++ b/drivers/thermal/st/st_thermal.c
@@ -127,8 +127,6 @@ static int st_thermal_get_temp(struct thermal_zone_device *th, int *temperature)
 	temp += sensor->cdata->temp_adjust_val;
 	temp = mcelsius(temp);
 
-	dev_dbg(dev, "temperature: %d\n", temp);
-
 	*temperature = temp;
 
 	return 0;
diff --git a/drivers/thermal/thermal-generic-adc.c b/drivers/thermal/thermal-generic-adc.c
index 8e2ff0df7e64..7f3eda31d0fa 100644
--- a/drivers/thermal/thermal-generic-adc.c
+++ b/drivers/thermal/thermal-generic-adc.c
@@ -59,10 +59,9 @@ static int gadc_thermal_get_temp(struct thermal_zone_device *tz, int *temp)
 	int ret;
 
 	ret = iio_read_channel_processed(gti->channel, &val);
-	if (ret < 0) {
-		dev_err(gti->dev, "IIO channel read failed %d\n", ret);
+	if (ret < 0)
 		return ret;
-	}
+
 	*temp = gadc_thermal_adc_to_temp(gti, val);
 
 	return 0;
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 4+ messages in thread
* [PATCH v1 04/17] thermal/hwmon: Do not set no_hwmon before calling thermal_add_hwmon_sysfs()
       [not found] <20230219143657.241542-1-daniel.lezcano@linaro.org>
  2023-02-19 14:36 ` [PATCH v1 03/17] thermal: Remove debug or error messages in get_temp() ops Daniel Lezcano
@ 2023-02-19 14:36 ` Daniel Lezcano
  2023-02-19 15:08   ` Niklas Söderlund
  1 sibling, 1 reply; 4+ messages in thread
From: Daniel Lezcano @ 2023-02-19 14:36 UTC (permalink / raw)
  To: rafael, daniel.lezcano
  Cc: linux-pm, linux-kernel, Amit Kucheria, Zhang Rui,
	Florian Fainelli, Broadcom internal kernel review list, Ray Jui,
	Scott Branden, Niklas Söderlund, Heiko Stuebner,
	Stefan Wahren, Kunihiko Hayashi, Miquel Raynal, Neil Armstrong,
	ye xingchen,
	moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE,
	moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE,
	open list:RENESAS R-CAR THERMAL DRIVERS,
	open list:ARM/Rockchip SoC support

The thermal->tzp->no_hwmon parameter is only used when calling
thermal_zone_device_register().

Setting it to 'false' before calling thermal_add_hwmon_sysfs() has no
effect.

Remove the call and again prevent the drivers to access the thermal
internals.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/thermal/broadcom/bcm2711_thermal.c | 1 -
 drivers/thermal/broadcom/bcm2835_thermal.c | 1 -
 drivers/thermal/rcar_gen3_thermal.c        | 1 -
 drivers/thermal/rcar_thermal.c             | 5 -----
 drivers/thermal/rockchip_thermal.c         | 1 -
 drivers/thermal/rzg2l_thermal.c            | 1 -
 6 files changed, 10 deletions(-)

diff --git a/drivers/thermal/broadcom/bcm2711_thermal.c b/drivers/thermal/broadcom/bcm2711_thermal.c
index 18b1a4d9ecc7..0a499435431c 100644
--- a/drivers/thermal/broadcom/bcm2711_thermal.c
+++ b/drivers/thermal/broadcom/bcm2711_thermal.c
@@ -98,7 +98,6 @@ static int bcm2711_thermal_probe(struct platform_device *pdev)
 
 	priv->thermal = thermal;
 
-	thermal->tzp->no_hwmon = false;
 	return thermal_add_hwmon_sysfs(thermal);
 }
 
diff --git a/drivers/thermal/broadcom/bcm2835_thermal.c b/drivers/thermal/broadcom/bcm2835_thermal.c
index de2f573863da..8ed7a80122a0 100644
--- a/drivers/thermal/broadcom/bcm2835_thermal.c
+++ b/drivers/thermal/broadcom/bcm2835_thermal.c
@@ -267,7 +267,6 @@ static int bcm2835_thermal_probe(struct platform_device *pdev)
 	 * Thermal_zone doesn't enable hwmon as default,
 	 * enable it here
 	 */
-	tz->tzp->no_hwmon = false;
 	err = thermal_add_hwmon_sysfs(tz);
 	if (err)
 		goto err_tz;
diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index 8ad713cb4bf7..4ea9d4bd8e6f 100644
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -527,7 +527,6 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
 		}
 		tsc->zone = zone;
 
-		tsc->zone->tzp->no_hwmon = false;
 		ret = thermal_add_hwmon_sysfs(tsc->zone);
 		if (ret)
 			goto error_unregister;
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 538ed6731589..919f0e32d3c5 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -509,11 +509,6 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 		}
 
 		if (chip->use_of_thermal) {
-			/*
-			 * thermal_zone doesn't enable hwmon as default,
-			 * but, enable it here to keep compatible
-			 */
-			priv->zone->tzp->no_hwmon = false;
 			ret = thermal_add_hwmon_sysfs(priv->zone);
 			if (ret)
 				goto error_unregister;
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index bd593ec712ee..3211b70c85b9 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -1451,7 +1451,6 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
 
 	for (i = 0; i < thermal->chip->chn_num; i++) {
 		rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
-		thermal->sensors[i].tzd->tzp->no_hwmon = false;
 		error = thermal_add_hwmon_sysfs(thermal->sensors[i].tzd);
 		if (error)
 			dev_warn(&pdev->dev,
diff --git a/drivers/thermal/rzg2l_thermal.c b/drivers/thermal/rzg2l_thermal.c
index d3ba2a74e42d..a2f21c941cfe 100644
--- a/drivers/thermal/rzg2l_thermal.c
+++ b/drivers/thermal/rzg2l_thermal.c
@@ -216,7 +216,6 @@ static int rzg2l_thermal_probe(struct platform_device *pdev)
 	}
 
 	priv->zone = zone;
-	priv->zone->tzp->no_hwmon = false;
 	ret = thermal_add_hwmon_sysfs(priv->zone);
 	if (ret)
 		goto err;
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 4+ messages in thread
* Re: [PATCH v1 04/17] thermal/hwmon: Do not set no_hwmon before calling thermal_add_hwmon_sysfs()
  2023-02-19 14:36 ` [PATCH v1 04/17] thermal/hwmon: Do not set no_hwmon before calling thermal_add_hwmon_sysfs() Daniel Lezcano
@ 2023-02-19 15:08   ` Niklas Söderlund
  0 siblings, 0 replies; 4+ messages in thread
From: Niklas Söderlund @ 2023-02-19 15:08 UTC (permalink / raw)
  To: Daniel Lezcano
  Cc: rafael, linux-pm, linux-kernel, Amit Kucheria, Zhang Rui,
	Florian Fainelli, Broadcom internal kernel review list, Ray Jui,
	Scott Branden, Heiko Stuebner, Stefan Wahren, Kunihiko Hayashi,
	Miquel Raynal, Neil Armstrong, ye xingchen,
	moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE,
	moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE,
	open list:RENESAS R-CAR THERMAL DRIVERS,
	open list:ARM/Rockchip SoC support

Hi Daniel,

Thanks for your work.

On 2023-02-19 15:36:44 +0100, Daniel Lezcano wrote:
> The thermal->tzp->no_hwmon parameter is only used when calling
> thermal_zone_device_register().
> 
> Setting it to 'false' before calling thermal_add_hwmon_sysfs() has no
> effect.
> 
> Remove the call and again prevent the drivers to access the thermal
> internals.
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> ---
>  drivers/thermal/broadcom/bcm2711_thermal.c | 1 -
>  drivers/thermal/broadcom/bcm2835_thermal.c | 1 -
>  drivers/thermal/rcar_gen3_thermal.c        | 1 -
>  drivers/thermal/rcar_thermal.c             | 5 -----

For R-Car,

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

>  drivers/thermal/rockchip_thermal.c         | 1 -
>  drivers/thermal/rzg2l_thermal.c            | 1 -
>  6 files changed, 10 deletions(-)
> 
> diff --git a/drivers/thermal/broadcom/bcm2711_thermal.c b/drivers/thermal/broadcom/bcm2711_thermal.c
> index 18b1a4d9ecc7..0a499435431c 100644
> --- a/drivers/thermal/broadcom/bcm2711_thermal.c
> +++ b/drivers/thermal/broadcom/bcm2711_thermal.c
> @@ -98,7 +98,6 @@ static int bcm2711_thermal_probe(struct platform_device *pdev)
>  
>  	priv->thermal = thermal;
>  
> -	thermal->tzp->no_hwmon = false;
>  	return thermal_add_hwmon_sysfs(thermal);
>  }
>  
> diff --git a/drivers/thermal/broadcom/bcm2835_thermal.c b/drivers/thermal/broadcom/bcm2835_thermal.c
> index de2f573863da..8ed7a80122a0 100644
> --- a/drivers/thermal/broadcom/bcm2835_thermal.c
> +++ b/drivers/thermal/broadcom/bcm2835_thermal.c
> @@ -267,7 +267,6 @@ static int bcm2835_thermal_probe(struct platform_device *pdev)
>  	 * Thermal_zone doesn't enable hwmon as default,
>  	 * enable it here
>  	 */
> -	tz->tzp->no_hwmon = false;
>  	err = thermal_add_hwmon_sysfs(tz);
>  	if (err)
>  		goto err_tz;
> diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
> index 8ad713cb4bf7..4ea9d4bd8e6f 100644
> --- a/drivers/thermal/rcar_gen3_thermal.c
> +++ b/drivers/thermal/rcar_gen3_thermal.c
> @@ -527,7 +527,6 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
>  		}
>  		tsc->zone = zone;
>  
> -		tsc->zone->tzp->no_hwmon = false;
>  		ret = thermal_add_hwmon_sysfs(tsc->zone);
>  		if (ret)
>  			goto error_unregister;
> diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
> index 538ed6731589..919f0e32d3c5 100644
> --- a/drivers/thermal/rcar_thermal.c
> +++ b/drivers/thermal/rcar_thermal.c
> @@ -509,11 +509,6 @@ static int rcar_thermal_probe(struct platform_device *pdev)
>  		}
>  
>  		if (chip->use_of_thermal) {
> -			/*
> -			 * thermal_zone doesn't enable hwmon as default,
> -			 * but, enable it here to keep compatible
> -			 */
> -			priv->zone->tzp->no_hwmon = false;
>  			ret = thermal_add_hwmon_sysfs(priv->zone);
>  			if (ret)
>  				goto error_unregister;
> diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
> index bd593ec712ee..3211b70c85b9 100644
> --- a/drivers/thermal/rockchip_thermal.c
> +++ b/drivers/thermal/rockchip_thermal.c
> @@ -1451,7 +1451,6 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
>  
>  	for (i = 0; i < thermal->chip->chn_num; i++) {
>  		rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
> -		thermal->sensors[i].tzd->tzp->no_hwmon = false;
>  		error = thermal_add_hwmon_sysfs(thermal->sensors[i].tzd);
>  		if (error)
>  			dev_warn(&pdev->dev,
> diff --git a/drivers/thermal/rzg2l_thermal.c b/drivers/thermal/rzg2l_thermal.c
> index d3ba2a74e42d..a2f21c941cfe 100644
> --- a/drivers/thermal/rzg2l_thermal.c
> +++ b/drivers/thermal/rzg2l_thermal.c
> @@ -216,7 +216,6 @@ static int rzg2l_thermal_probe(struct platform_device *pdev)
>  	}
>  
>  	priv->zone = zone;
> -	priv->zone->tzp->no_hwmon = false;
>  	ret = thermal_add_hwmon_sysfs(priv->zone);
>  	if (ret)
>  		goto err;
> -- 
> 2.34.1
> 

-- 
Kind Regards,
Niklas Söderlund

_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: [PATCH v1 03/17] thermal: Remove debug or error messages in get_temp() ops
  2023-02-19 14:36 ` [PATCH v1 03/17] thermal: Remove debug or error messages in get_temp() ops Daniel Lezcano
@ 2023-02-20  8:58   ` Miquel Raynal
  0 siblings, 0 replies; 4+ messages in thread
From: Miquel Raynal @ 2023-02-20  8:58 UTC (permalink / raw)
  To: Daniel Lezcano
  Cc: rafael, linux-pm, linux-kernel, Amit Kucheria, Zhang Rui,
	Markus Mayer, Broadcom internal kernel review list,
	Florian Fainelli, Shawn Guo, Sascha Hauer,
	Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
	Heiko Stuebner, moderated list:BROADCOM BCM7XXX ARM ARCHITECTURE,
	open list:ARM/Rockchip SoC support

Hi Daniel,

daniel.lezcano@linaro.org wrote on Sun, 19 Feb 2023 15:36:43 +0100:

> Some get_temp() ops implementation are showing an error or a debug
> message if the reading of the sensor fails.
> 
> The debug message is already displayed from the call site of this
> ops. So we can remove it.
> 
> On the other side, the error should not be displayed because in
> production that can raise tons of messages.
> 
> Finally, some drivers are showing a debug message with the
> temperature, this is also accessible through the trace from the core
> code in the temperature_update() function.
> 
> Another benefit is the dev_* messages are accessing the thermal zone
> device field from the structure, so we encapsulate even more the code
> by preventing these accesses.
> 
> Remove those messages.
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> ---
>  drivers/thermal/armada_thermal.c           | 10 ++--------

For Armada:

Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>

Thanks,
Miquèl

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^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-02-20  8:59 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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     [not found] <20230219143657.241542-1-daniel.lezcano@linaro.org>
2023-02-19 14:36 ` [PATCH v1 03/17] thermal: Remove debug or error messages in get_temp() ops Daniel Lezcano
2023-02-20  8:58   ` Miquel Raynal
2023-02-19 14:36 ` [PATCH v1 04/17] thermal/hwmon: Do not set no_hwmon before calling thermal_add_hwmon_sysfs() Daniel Lezcano
2023-02-19 15:08   ` Niklas Söderlund

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