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Date: Mon, 29 Jun 2020 18:17:51 +0530
From: Amit Kucheria <amit.kucheria@...durent.com>
To: Andrzej Pietrasiewicz <andrzej.p@...labora.com>
Cc: Linux PM list <linux-pm@...r.kernel.org>,
linux-acpi@...r.kernel.org, netdev@...r.kernel.org,
linux-wireless@...r.kernel.org,
platform-driver-x86@...r.kernel.org,
lakml <linux-arm-kernel@...ts.infradead.org>,
linux-renesas-soc@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
"Rafael J . Wysocki" <rjw@...ysocki.net>,
Len Brown <lenb@...nel.org>,
Vishal Kulkarni <vishal@...lsio.com>,
"David S . Miller" <davem@...emloft.net>,
Jiri Pirko <jiri@...lanox.com>,
Ido Schimmel <idosch@...lanox.com>,
Johannes Berg <johannes.berg@...el.com>,
Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
Luca Coelho <luciano.coelho@...el.com>,
Intel Linux Wireless <linuxwifi@...el.com>,
Kalle Valo <kvalo@...eaurora.org>,
Peter Kaestle <peter@...e.net>,
Darren Hart <dvhart@...radead.org>,
Andy Shevchenko <andy@...radead.org>,
Sebastian Reichel <sre@...nel.org>,
Miquel Raynal <miquel.raynal@...tlin.com>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Support Opensource <support.opensource@...semi.com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Niklas Söderlund <niklas.soderlund@...natech.se>,
Heiko Stuebner <heiko@...ech.de>,
Orson Zhai <orsonzhai@...il.com>,
Baolin Wang <baolin.wang7@...il.com>,
Chunyan Zhang <zhang.lyra@...il.com>,
Zhang Rui <rui.zhang@...el.com>,
Allison Randal <allison@...utok.net>,
Enrico Weigelt <info@...ux.net>,
Gayatri Kammela <gayatri.kammela@...el.com>,
Thomas Gleixner <tglx@...utronix.de>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
kernel@...labora.com
Subject: Re: [PATCH v7 10/11] thermal: Simplify or eliminate unnecessary
set_mode() methods
On Mon, Jun 29, 2020 at 6:00 PM Andrzej Pietrasiewicz
<andrzej.p@...labora.com> wrote:
>
> Setting polling_delay is now done at thermal_core level (by not polling
> DISABLED devices), so no need to repeat this code.
>
> int340x: Checking for an impossible enum value is unnecessary.
> acpi/thermal: It only prints debug messages.
>
> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@...labora.com>
> [for acerhdf]
> Acked-by: Peter Kaestle <peter@...e.net>
> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@...aro.org>
> ---
> drivers/acpi/thermal.c | 26 ----------------
> .../ethernet/mellanox/mlxsw/core_thermal.c | 30 -------------------
> drivers/platform/x86/acerhdf.c | 3 --
> drivers/thermal/imx_thermal.c | 6 ----
> .../intel/int340x_thermal/int3400_thermal.c | 4 ---
> drivers/thermal/thermal_of.c | 18 -----------
> 6 files changed, 87 deletions(-)
>
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 52b6cda1bcc3..29a2b73fe035 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -525,31 +525,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
> return 0;
> }
>
> -static int thermal_set_mode(struct thermal_zone_device *thermal,
> - enum thermal_device_mode mode)
> -{
> - struct acpi_thermal *tz = thermal->devdata;
> -
> - if (!tz)
> - return -EINVAL;
> -
> - if (mode != THERMAL_DEVICE_DISABLED &&
> - mode != THERMAL_DEVICE_ENABLED)
> - return -EINVAL;
> - /*
> - * enable/disable thermal management from ACPI thermal driver
> - */
> - if (mode == THERMAL_DEVICE_DISABLED)
> - pr_warn("thermal zone will be disabled\n");
> -
> - ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> - "%s kernel ACPI thermal control\n",
> - mode == THERMAL_DEVICE_ENABLED ?
> - "Enable" : "Disable"));
> -
> - return 0;
> -}
> -
> static int thermal_get_trip_type(struct thermal_zone_device *thermal,
> int trip, enum thermal_trip_type *type)
> {
> @@ -836,7 +811,6 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
> .bind = acpi_thermal_bind_cooling_device,
> .unbind = acpi_thermal_unbind_cooling_device,
> .get_temp = thermal_get_temp,
> - .set_mode = thermal_set_mode,
> .get_trip_type = thermal_get_trip_type,
> .get_trip_temp = thermal_get_trip_temp,
> .get_crit_temp = thermal_get_crit_temp,
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> index 4fb73d0fd167..8fa286ccdd6b 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
> @@ -275,19 +275,6 @@ static int mlxsw_thermal_unbind(struct thermal_zone_device *tzdev,
> return 0;
> }
>
> -static int mlxsw_thermal_set_mode(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode mode)
> -{
> - struct mlxsw_thermal *thermal = tzdev->devdata;
> -
> - if (mode == THERMAL_DEVICE_ENABLED)
> - tzdev->polling_delay = thermal->polling_delay;
> - else
> - tzdev->polling_delay = 0;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_get_temp(struct thermal_zone_device *tzdev,
> int *p_temp)
> {
> @@ -387,7 +374,6 @@ static int mlxsw_thermal_trend_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_ops = {
> .bind = mlxsw_thermal_bind,
> .unbind = mlxsw_thermal_unbind,
> - .set_mode = mlxsw_thermal_set_mode,
> .get_temp = mlxsw_thermal_get_temp,
> .get_trip_type = mlxsw_thermal_get_trip_type,
> .get_trip_temp = mlxsw_thermal_get_trip_temp,
> @@ -445,20 +431,6 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
> return err;
> }
>
> -static int mlxsw_thermal_module_mode_set(struct thermal_zone_device *tzdev,
> - enum thermal_device_mode mode)
> -{
> - struct mlxsw_thermal_module *tz = tzdev->devdata;
> - struct mlxsw_thermal *thermal = tz->parent;
> -
> - if (mode == THERMAL_DEVICE_ENABLED)
> - tzdev->polling_delay = thermal->polling_delay;
> - else
> - tzdev->polling_delay = 0;
> -
> - return 0;
> -}
> -
> static int mlxsw_thermal_module_temp_get(struct thermal_zone_device *tzdev,
> int *p_temp)
> {
> @@ -574,7 +546,6 @@ static int mlxsw_thermal_module_trend_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_module_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> .get_trip_temp = mlxsw_thermal_module_trip_temp_get,
> @@ -612,7 +583,6 @@ static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
> static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
> .bind = mlxsw_thermal_module_bind,
> .unbind = mlxsw_thermal_module_unbind,
> - .set_mode = mlxsw_thermal_module_mode_set,
> .get_temp = mlxsw_thermal_gearbox_temp_get,
> .get_trip_type = mlxsw_thermal_module_trip_type_get,
> .get_trip_temp = mlxsw_thermal_module_trip_temp_get,
> diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
> index 8fe0ecb6a626..76323855c80c 100644
> --- a/drivers/platform/x86/acerhdf.c
> +++ b/drivers/platform/x86/acerhdf.c
> @@ -397,8 +397,6 @@ static inline void acerhdf_revert_to_bios_mode(void)
> {
> acerhdf_change_fanstate(ACERHDF_FAN_AUTO);
> kernelmode = 0;
> - if (thz_dev)
> - thz_dev->polling_delay = 0;
>
> pr_notice("kernel mode fan control OFF\n");
> }
> @@ -406,7 +404,6 @@ static inline void acerhdf_enable_kernelmode(void)
> {
> kernelmode = 1;
>
> - thz_dev->polling_delay = interval*1000;
> pr_notice("kernel mode fan control ON\n");
> }
>
> diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
> index 53abb1be1cba..a02398118d88 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -338,9 +338,6 @@ static int imx_set_mode(struct thermal_zone_device *tz,
> const struct thermal_soc_data *soc_data = data->socdata;
>
> if (mode == THERMAL_DEVICE_ENABLED) {
> - tz->polling_delay = IMX_POLLING_DELAY;
> - tz->passive_delay = IMX_PASSIVE_DELAY;
> -
> regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
> soc_data->power_down_mask);
> regmap_write(map, soc_data->sensor_ctrl + REG_SET,
> @@ -356,9 +353,6 @@ static int imx_set_mode(struct thermal_zone_device *tz,
> regmap_write(map, soc_data->sensor_ctrl + REG_SET,
> soc_data->power_down_mask);
>
> - tz->polling_delay = 0;
> - tz->passive_delay = 0;
> -
> if (data->irq_enabled) {
> disable_irq(data->irq);
> data->irq_enabled = false;
> diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> index 3c0397a29b8c..ce49d3b100d5 100644
> --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
> @@ -386,10 +386,6 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
> if (!priv)
> return -EINVAL;
>
> - if (mode != THERMAL_DEVICE_ENABLED &&
> - mode != THERMAL_DEVICE_DISABLED)
> - return -EINVAL;
> -
> if (mode != thermal->mode)
> result = int3400_thermal_run_osc(priv->adev->handle,
> priv->current_uuid_index,
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index 43a516a35d64..69ef12f852b7 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -267,22 +267,6 @@ static int of_thermal_unbind(struct thermal_zone_device *thermal,
> return 0;
> }
>
> -static int of_thermal_set_mode(struct thermal_zone_device *tz,
> - enum thermal_device_mode mode)
> -{
> - struct __thermal_zone *data = tz->devdata;
> -
> - if (mode == THERMAL_DEVICE_ENABLED) {
> - tz->polling_delay = data->polling_delay;
> - tz->passive_delay = data->passive_delay;
> - } else {
> - tz->polling_delay = 0;
> - tz->passive_delay = 0;
> - }
> -
> - return 0;
> -}
> -
> static int of_thermal_get_trip_type(struct thermal_zone_device *tz, int trip,
> enum thermal_trip_type *type)
> {
> @@ -374,8 +358,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
> }
>
> static struct thermal_zone_device_ops of_thermal_ops = {
> - .set_mode = of_thermal_set_mode,
> -
> .get_trip_type = of_thermal_get_trip_type,
> .get_trip_temp = of_thermal_get_trip_temp,
> .set_trip_temp = of_thermal_set_trip_temp,
> --
> 2.17.1
>
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