* [PATCHv2] thermal: add omap3 support
@ 2015-01-18 20:28 ` Pavel Machek
0 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-01-18 20:28 UTC (permalink / raw)
To: edubezval, rui.zhang, linux-kernel, linux-pm, linux-omap
Cc: pali.rohar, sre, sre, linux-arm-kernel, linux-omap, tony, khilman,
aaro.koskinen, ivo.g.dimitrov.75
Add support for omap3430 sensor. Tested on Nokia N900.
Fix help text to be closer to english.
Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
already.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
diff --git a/drivers/thermal/ti-soc-thermal/Kconfig b/drivers/thermal/ti-soc-thermal/Kconfig
index bd4c7be..65c478e 100644
--- a/drivers/thermal/ti-soc-thermal/Kconfig
+++ b/drivers/thermal/ti-soc-thermal/Kconfig
@@ -21,13 +21,28 @@ config TI_THERMAL
This includes trip points definitions, extrapolation rules and
CPU cooling device bindings.
+config OMAP3_THERMAL
+ bool "Texas Instruments OMAP3 thermal support"
+ depends on TI_SOC_THERMAL
+ depends on ARCH_OMAP3
+ help
+ If you say yes here you get thermal support for the Texas Instruments
+ OMAP3 SoC family. The current chips supported are:
+ - OMAP3430
+
+ OMAP3 chips normally don't need thermal management, and sensors in
+ this generation are not very accurate, nor they are very close to
+ the important hotspots.
+
+ Say 'N' here.
+
config OMAP4_THERMAL
bool "Texas Instruments OMAP4 thermal support"
depends on TI_SOC_THERMAL
depends on ARCH_OMAP4
help
If you say yes here you get thermal support for the Texas Instruments
- OMAP4 SoC family. The current chip supported are:
+ OMAP4 SoC family. The current chips supported are:
- OMAP4430
- OMAP4460
- OMAP4470
@@ -41,7 +56,7 @@ config OMAP5_THERMAL
depends on SOC_OMAP5
help
If you say yes here you get thermal support for the Texas Instruments
- OMAP5 SoC family. The current chip supported are:
+ OMAP5 SoC family. The current chips supported are:
- OMAP5430
This includes alert interrupts generation and also the TSHUT
@@ -53,7 +68,7 @@ config DRA752_THERMAL
depends on SOC_DRA7XX
help
If you say yes here you get thermal support for the Texas Instruments
- DRA752 SoC family. The current chip supported are:
+ DRA752 SoC family. The current chips supported are:
- DRA752
This includes alert interrupts generation and also the TSHUT
diff --git a/drivers/thermal/ti-soc-thermal/Makefile b/drivers/thermal/ti-soc-thermal/Makefile
index 1226b24..0f89bdf 100644
--- a/drivers/thermal/ti-soc-thermal/Makefile
+++ b/drivers/thermal/ti-soc-thermal/Makefile
@@ -2,5 +2,6 @@ obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal.o
ti-soc-thermal-y := ti-bandgap.o
ti-soc-thermal-$(CONFIG_TI_THERMAL) += ti-thermal-common.o
ti-soc-thermal-$(CONFIG_DRA752_THERMAL) += dra752-thermal-data.o
+ti-soc-thermal-$(CONFIG_OMAP3_THERMAL) += omap3-thermal-data.o
ti-soc-thermal-$(CONFIG_OMAP4_THERMAL) += omap4-thermal-data.o
ti-soc-thermal-$(CONFIG_OMAP5_THERMAL) += omap5-thermal-data.o
diff --git a/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
new file mode 100644
index 0000000..5cee2a35
--- /dev/null
+++ b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
@@ -0,0 +1,103 @@
+/*
+ * OMAP3 thermal driver.
+ *
+ * Copyright (C) 2011-2012 Texas Instruments Inc.
+ * Copyright (C) 2014 Pavel Machek <pavel@ucw.cz>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Note
+ * http://www.ti.com/lit/er/sprz278f/sprz278f.pdf "Advisory
+ * 3.1.1.186 MMC OCP Clock Not Gated When Thermal Sensor Is Used"
+ *
+ * Also TI says:
+ * Just be careful when you try to make thermal policy like decisions
+ * based on this sensor. Placement of the sensor w.r.t the actual logic
+ * generating heat has to be a factor as well. If you are just looking
+ * for an approximation temperature (thermometerish kind), you might be
+ * ok with this. I am not sure we'd find any TI data around this.. just a
+ * heads up.
+ */
+
+#include "ti-thermal.h"
+#include "ti-bandgap.h"
+
+/*
+ * OMAP34XX has one instance of thermal sensor for MPU
+ * need to describe the individual bit fields
+ */
+static struct temp_sensor_registers
+omap34xx_mpu_temp_sensor_registers = {
+ .temp_sensor_ctrl = 0,
+ .bgap_soc_mask = BIT(8),
+ .bgap_eocz_mask = BIT(7),
+ .bgap_dtemp_mask = 0x7f,
+
+ .bgap_mode_ctrl = 0,
+ .mode_ctrl_mask = BIT(9),
+};
+
+/* Thresholds and limits for OMAP34XX MPU temperature sensor */
+static struct temp_sensor_data omap34xx_mpu_temp_sensor_data = {
+ .min_freq = 32768,
+ .max_freq = 32768,
+ .max_temp = -99000,
+ .min_temp = 99000,
+ .hyst_val = 5000,
+};
+
+/*
+ * Temperature values in milli degree celsius
+ */
+static const int
+omap34xx_adc_to_temp[128] = {
+ -40000, -40000, -40000, -40000, -40000, -39000, -38000, -36000,
+ -34000, -32000, -31000, -29000, -28000, -26000, -25000, -24000,
+ -22000, -21000, -19000, -18000, -17000, -15000, -14000, -12000,
+ -11000, -9000, -8000, -7000, -5000, -4000, -2000, -1000, 0000,
+ 1000, 3000, 4000, 5000, 7000, 8000, 10000, 11000, 13000, 14000,
+ 15000, 17000, 18000, 20000, 21000, 22000, 24000, 25000, 27000,
+ 28000, 30000, 31000, 32000, 34000, 35000, 37000, 38000, 39000,
+ 41000, 42000, 44000, 45000, 47000, 48000, 49000, 51000, 52000,
+ 53000, 55000, 56000, 58000, 59000, 60000, 62000, 63000, 65000,
+ 66000, 67000, 69000, 70000, 72000, 73000, 74000, 76000, 77000,
+ 79000, 80000, 81000, 83000, 84000, 85000, 87000, 88000, 89000,
+ 91000, 92000, 94000, 95000, 96000, 98000, 99000, 100000,
+ 102000, 103000, 105000, 106000, 107000, 109000, 110000, 111000,
+ 113000, 114000, 116000, 117000, 118000, 120000, 121000, 122000,
+ 124000, 124000, 125000, 125000, 125000, 125000, 125000
+};
+
+/* OMAP34XX data */
+const struct ti_bandgap_data omap34xx_data = {
+ .features = TI_BANDGAP_FEATURE_CLK_CTRL /* | TI_BANDGAP_FEATURE_MODE_CONFIG */,
+ .fclock_name = "ts_fck",
+ .div_ck_name = "ts_fck",
+ .conv_table = omap34xx_adc_to_temp,
+ .adc_start_val = 0,
+ .adc_end_val = 127,
+ .expose_sensor = ti_thermal_expose_sensor,
+ .remove_sensor = ti_thermal_remove_sensor,
+
+ .sensors = {
+ {
+ .registers = &omap34xx_mpu_temp_sensor_registers,
+ .ts_data = &omap34xx_mpu_temp_sensor_data,
+ .domain = "cpu",
+ .slope = 0,
+ .constant = 20000,
+ .slope_pcb = 0,
+ .constant_pcb = 20000,
+ .register_cooling = NULL,
+ .unregister_cooling = NULL,
+ },
+ },
+ .sensor_count = 1,
+};
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 634b6ce..2fde78c 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -1509,6 +1510,12 @@ static SIMPLE_DEV_PM_OPS(ti_bandgap_dev_pm_ops, ti_bandgap_suspend,
#endif
static const struct of_device_id of_ti_bandgap_match[] = {
+#ifdef CONFIG_OMAP3_THERMAL
+ {
+ .compatible = "ti,omap34xx-bandgap",
+ .data = (void *)&omap34xx_data,
+ },
+#endif
#ifdef CONFIG_OMAP4_THERMAL
{
.compatible = "ti,omap4430-bandgap",
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
index b3adf72..9ba9a6b 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
@@ -331,6 +331,7 @@ struct ti_temp_sensor {
#define TI_BANDGAP_FEATURE_FREEZE_BIT BIT(7)
#define TI_BANDGAP_FEATURE_COUNTER_DELAY BIT(8)
#define TI_BANDGAP_FEATURE_HISTORY_BUFFER BIT(9)
+#define TI_BANDGAP_FEATURE_UNRELIABLE BIT(10)
#define TI_BANDGAP_HAS(b, f) \
((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
@@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
-#ifdef CONFIG_OMAP4_THERMAL
+extern const struct ti_bandgap_data omap34xx_data;
extern const struct ti_bandgap_data omap4430_data;
extern const struct ti_bandgap_data omap4460_data;
extern const struct ti_bandgap_data omap4470_data;
-#else
-#define omap4430_data NULL
-#define omap4460_data NULL
-#define omap4470_data NULL
-#endif
-
-#ifdef CONFIG_OMAP5_THERMAL
extern const struct ti_bandgap_data omap5430_data;
-#else
-#define omap5430_data NULL
-#endif
-
-#ifdef CONFIG_DRA752_THERMAL
extern const struct ti_bandgap_data dra752_data;
-#else
-#define dra752_data NULL
-#endif
#endif
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply related [flat|nested] 29+ messages in thread* [PATCHv2] thermal: add omap3 support
@ 2015-01-18 20:28 ` Pavel Machek
0 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-01-18 20:28 UTC (permalink / raw)
To: linux-arm-kernel
Add support for omap3430 sensor. Tested on Nokia N900.
Fix help text to be closer to english.
Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
already.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
diff --git a/drivers/thermal/ti-soc-thermal/Kconfig b/drivers/thermal/ti-soc-thermal/Kconfig
index bd4c7be..65c478e 100644
--- a/drivers/thermal/ti-soc-thermal/Kconfig
+++ b/drivers/thermal/ti-soc-thermal/Kconfig
@@ -21,13 +21,28 @@ config TI_THERMAL
This includes trip points definitions, extrapolation rules and
CPU cooling device bindings.
+config OMAP3_THERMAL
+ bool "Texas Instruments OMAP3 thermal support"
+ depends on TI_SOC_THERMAL
+ depends on ARCH_OMAP3
+ help
+ If you say yes here you get thermal support for the Texas Instruments
+ OMAP3 SoC family. The current chips supported are:
+ - OMAP3430
+
+ OMAP3 chips normally don't need thermal management, and sensors in
+ this generation are not very accurate, nor they are very close to
+ the important hotspots.
+
+ Say 'N' here.
+
config OMAP4_THERMAL
bool "Texas Instruments OMAP4 thermal support"
depends on TI_SOC_THERMAL
depends on ARCH_OMAP4
help
If you say yes here you get thermal support for the Texas Instruments
- OMAP4 SoC family. The current chip supported are:
+ OMAP4 SoC family. The current chips supported are:
- OMAP4430
- OMAP4460
- OMAP4470
@@ -41,7 +56,7 @@ config OMAP5_THERMAL
depends on SOC_OMAP5
help
If you say yes here you get thermal support for the Texas Instruments
- OMAP5 SoC family. The current chip supported are:
+ OMAP5 SoC family. The current chips supported are:
- OMAP5430
This includes alert interrupts generation and also the TSHUT
@@ -53,7 +68,7 @@ config DRA752_THERMAL
depends on SOC_DRA7XX
help
If you say yes here you get thermal support for the Texas Instruments
- DRA752 SoC family. The current chip supported are:
+ DRA752 SoC family. The current chips supported are:
- DRA752
This includes alert interrupts generation and also the TSHUT
diff --git a/drivers/thermal/ti-soc-thermal/Makefile b/drivers/thermal/ti-soc-thermal/Makefile
index 1226b24..0f89bdf 100644
--- a/drivers/thermal/ti-soc-thermal/Makefile
+++ b/drivers/thermal/ti-soc-thermal/Makefile
@@ -2,5 +2,6 @@ obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal.o
ti-soc-thermal-y := ti-bandgap.o
ti-soc-thermal-$(CONFIG_TI_THERMAL) += ti-thermal-common.o
ti-soc-thermal-$(CONFIG_DRA752_THERMAL) += dra752-thermal-data.o
+ti-soc-thermal-$(CONFIG_OMAP3_THERMAL) += omap3-thermal-data.o
ti-soc-thermal-$(CONFIG_OMAP4_THERMAL) += omap4-thermal-data.o
ti-soc-thermal-$(CONFIG_OMAP5_THERMAL) += omap5-thermal-data.o
diff --git a/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
new file mode 100644
index 0000000..5cee2a35
--- /dev/null
+++ b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
@@ -0,0 +1,103 @@
+/*
+ * OMAP3 thermal driver.
+ *
+ * Copyright (C) 2011-2012 Texas Instruments Inc.
+ * Copyright (C) 2014 Pavel Machek <pavel@ucw.cz>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Note
+ * http://www.ti.com/lit/er/sprz278f/sprz278f.pdf "Advisory
+ * 3.1.1.186 MMC OCP Clock Not Gated When Thermal Sensor Is Used"
+ *
+ * Also TI says:
+ * Just be careful when you try to make thermal policy like decisions
+ * based on this sensor. Placement of the sensor w.r.t the actual logic
+ * generating heat has to be a factor as well. If you are just looking
+ * for an approximation temperature (thermometerish kind), you might be
+ * ok with this. I am not sure we'd find any TI data around this.. just a
+ * heads up.
+ */
+
+#include "ti-thermal.h"
+#include "ti-bandgap.h"
+
+/*
+ * OMAP34XX has one instance of thermal sensor for MPU
+ * need to describe the individual bit fields
+ */
+static struct temp_sensor_registers
+omap34xx_mpu_temp_sensor_registers = {
+ .temp_sensor_ctrl = 0,
+ .bgap_soc_mask = BIT(8),
+ .bgap_eocz_mask = BIT(7),
+ .bgap_dtemp_mask = 0x7f,
+
+ .bgap_mode_ctrl = 0,
+ .mode_ctrl_mask = BIT(9),
+};
+
+/* Thresholds and limits for OMAP34XX MPU temperature sensor */
+static struct temp_sensor_data omap34xx_mpu_temp_sensor_data = {
+ .min_freq = 32768,
+ .max_freq = 32768,
+ .max_temp = -99000,
+ .min_temp = 99000,
+ .hyst_val = 5000,
+};
+
+/*
+ * Temperature values in milli degree celsius
+ */
+static const int
+omap34xx_adc_to_temp[128] = {
+ -40000, -40000, -40000, -40000, -40000, -39000, -38000, -36000,
+ -34000, -32000, -31000, -29000, -28000, -26000, -25000, -24000,
+ -22000, -21000, -19000, -18000, -17000, -15000, -14000, -12000,
+ -11000, -9000, -8000, -7000, -5000, -4000, -2000, -1000, 0000,
+ 1000, 3000, 4000, 5000, 7000, 8000, 10000, 11000, 13000, 14000,
+ 15000, 17000, 18000, 20000, 21000, 22000, 24000, 25000, 27000,
+ 28000, 30000, 31000, 32000, 34000, 35000, 37000, 38000, 39000,
+ 41000, 42000, 44000, 45000, 47000, 48000, 49000, 51000, 52000,
+ 53000, 55000, 56000, 58000, 59000, 60000, 62000, 63000, 65000,
+ 66000, 67000, 69000, 70000, 72000, 73000, 74000, 76000, 77000,
+ 79000, 80000, 81000, 83000, 84000, 85000, 87000, 88000, 89000,
+ 91000, 92000, 94000, 95000, 96000, 98000, 99000, 100000,
+ 102000, 103000, 105000, 106000, 107000, 109000, 110000, 111000,
+ 113000, 114000, 116000, 117000, 118000, 120000, 121000, 122000,
+ 124000, 124000, 125000, 125000, 125000, 125000, 125000
+};
+
+/* OMAP34XX data */
+const struct ti_bandgap_data omap34xx_data = {
+ .features = TI_BANDGAP_FEATURE_CLK_CTRL /* | TI_BANDGAP_FEATURE_MODE_CONFIG */,
+ .fclock_name = "ts_fck",
+ .div_ck_name = "ts_fck",
+ .conv_table = omap34xx_adc_to_temp,
+ .adc_start_val = 0,
+ .adc_end_val = 127,
+ .expose_sensor = ti_thermal_expose_sensor,
+ .remove_sensor = ti_thermal_remove_sensor,
+
+ .sensors = {
+ {
+ .registers = &omap34xx_mpu_temp_sensor_registers,
+ .ts_data = &omap34xx_mpu_temp_sensor_data,
+ .domain = "cpu",
+ .slope = 0,
+ .constant = 20000,
+ .slope_pcb = 0,
+ .constant_pcb = 20000,
+ .register_cooling = NULL,
+ .unregister_cooling = NULL,
+ },
+ },
+ .sensor_count = 1,
+};
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 634b6ce..2fde78c 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -1509,6 +1510,12 @@ static SIMPLE_DEV_PM_OPS(ti_bandgap_dev_pm_ops, ti_bandgap_suspend,
#endif
static const struct of_device_id of_ti_bandgap_match[] = {
+#ifdef CONFIG_OMAP3_THERMAL
+ {
+ .compatible = "ti,omap34xx-bandgap",
+ .data = (void *)&omap34xx_data,
+ },
+#endif
#ifdef CONFIG_OMAP4_THERMAL
{
.compatible = "ti,omap4430-bandgap",
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
index b3adf72..9ba9a6b 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
@@ -331,6 +331,7 @@ struct ti_temp_sensor {
#define TI_BANDGAP_FEATURE_FREEZE_BIT BIT(7)
#define TI_BANDGAP_FEATURE_COUNTER_DELAY BIT(8)
#define TI_BANDGAP_FEATURE_HISTORY_BUFFER BIT(9)
+#define TI_BANDGAP_FEATURE_UNRELIABLE BIT(10)
#define TI_BANDGAP_HAS(b, f) \
((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
@@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
-#ifdef CONFIG_OMAP4_THERMAL
+extern const struct ti_bandgap_data omap34xx_data;
extern const struct ti_bandgap_data omap4430_data;
extern const struct ti_bandgap_data omap4460_data;
extern const struct ti_bandgap_data omap4470_data;
-#else
-#define omap4430_data NULL
-#define omap4460_data NULL
-#define omap4470_data NULL
-#endif
-
-#ifdef CONFIG_OMAP5_THERMAL
extern const struct ti_bandgap_data omap5430_data;
-#else
-#define omap5430_data NULL
-#endif
-
-#ifdef CONFIG_DRA752_THERMAL
extern const struct ti_bandgap_data dra752_data;
-#else
-#define dra752_data NULL
-#endif
#endif
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply related [flat|nested] 29+ messages in thread* Re: [PATCHv2] thermal: add omap3 support
2015-01-18 20:28 ` Pavel Machek
@ 2015-03-13 5:03 ` Eduardo Valentin
-1 siblings, 0 replies; 29+ messages in thread
From: Eduardo Valentin @ 2015-03-13 5:03 UTC (permalink / raw)
To: Pavel Machek
Cc: rui.zhang, linux-kernel, linux-pm, linux-omap, pali.rohar, sre,
sre, linux-arm-kernel, tony, khilman, aaro.koskinen,
ivo.g.dimitrov.75
[-- Attachment #1: Type: text/plain, Size: 9582 bytes --]
On Sun, Jan 18, 2015 at 09:28:24PM +0100, Pavel Machek wrote:
>
> Add support for omap3430 sensor. Tested on Nokia N900.
>
> Fix help text to be closer to english.
>
> Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
> already.
>
> Signed-off-by: Pavel Machek <pavel@ucw.cz>
>
> diff --git a/drivers/thermal/ti-soc-thermal/Kconfig b/drivers/thermal/ti-soc-thermal/Kconfig
> index bd4c7be..65c478e 100644
> --- a/drivers/thermal/ti-soc-thermal/Kconfig
> +++ b/drivers/thermal/ti-soc-thermal/Kconfig
> @@ -21,13 +21,28 @@ config TI_THERMAL
> This includes trip points definitions, extrapolation rules and
> CPU cooling device bindings.
>
> +config OMAP3_THERMAL
> + bool "Texas Instruments OMAP3 thermal support"
> + depends on TI_SOC_THERMAL
> + depends on ARCH_OMAP3
> + help
> + If you say yes here you get thermal support for the Texas Instruments
> + OMAP3 SoC family. The current chips supported are:
> + - OMAP3430
> +
> + OMAP3 chips normally don't need thermal management, and sensors in
> + this generation are not very accurate, nor they are very close to
> + the important hotspots.
> +
> + Say 'N' here.
> +
> config OMAP4_THERMAL
> bool "Texas Instruments OMAP4 thermal support"
> depends on TI_SOC_THERMAL
> depends on ARCH_OMAP4
> help
> If you say yes here you get thermal support for the Texas Instruments
> - OMAP4 SoC family. The current chip supported are:
> + OMAP4 SoC family. The current chips supported are:
> - OMAP4430
> - OMAP4460
> - OMAP4470
> @@ -41,7 +56,7 @@ config OMAP5_THERMAL
> depends on SOC_OMAP5
> help
> If you say yes here you get thermal support for the Texas Instruments
> - OMAP5 SoC family. The current chip supported are:
> + OMAP5 SoC family. The current chips supported are:
> - OMAP5430
>
> This includes alert interrupts generation and also the TSHUT
> @@ -53,7 +68,7 @@ config DRA752_THERMAL
> depends on SOC_DRA7XX
> help
> If you say yes here you get thermal support for the Texas Instruments
> - DRA752 SoC family. The current chip supported are:
> + DRA752 SoC family. The current chips supported are:
> - DRA752
>
> This includes alert interrupts generation and also the TSHUT
> diff --git a/drivers/thermal/ti-soc-thermal/Makefile b/drivers/thermal/ti-soc-thermal/Makefile
> index 1226b24..0f89bdf 100644
> --- a/drivers/thermal/ti-soc-thermal/Makefile
> +++ b/drivers/thermal/ti-soc-thermal/Makefile
> @@ -2,5 +2,6 @@ obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal.o
> ti-soc-thermal-y := ti-bandgap.o
> ti-soc-thermal-$(CONFIG_TI_THERMAL) += ti-thermal-common.o
> ti-soc-thermal-$(CONFIG_DRA752_THERMAL) += dra752-thermal-data.o
> +ti-soc-thermal-$(CONFIG_OMAP3_THERMAL) += omap3-thermal-data.o
> ti-soc-thermal-$(CONFIG_OMAP4_THERMAL) += omap4-thermal-data.o
> ti-soc-thermal-$(CONFIG_OMAP5_THERMAL) += omap5-thermal-data.o
> diff --git a/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
> new file mode 100644
> index 0000000..5cee2a35
> --- /dev/null
> +++ b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
> @@ -0,0 +1,103 @@
> +/*
> + * OMAP3 thermal driver.
> + *
> + * Copyright (C) 2011-2012 Texas Instruments Inc.
> + * Copyright (C) 2014 Pavel Machek <pavel@ucw.cz>
> + *
> + * This software is licensed under the terms of the GNU General Public
> + * License version 2, as published by the Free Software Foundation, and
> + * may be copied, distributed, and modified under those terms.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * Note
> + * http://www.ti.com/lit/er/sprz278f/sprz278f.pdf "Advisory
> + * 3.1.1.186 MMC OCP Clock Not Gated When Thermal Sensor Is Used"
> + *
> + * Also TI says:
> + * Just be careful when you try to make thermal policy like decisions
> + * based on this sensor. Placement of the sensor w.r.t the actual logic
> + * generating heat has to be a factor as well. If you are just looking
> + * for an approximation temperature (thermometerish kind), you might be
> + * ok with this. I am not sure we'd find any TI data around this.. just a
> + * heads up.
> + */
> +
> +#include "ti-thermal.h"
> +#include "ti-bandgap.h"
> +
> +/*
> + * OMAP34XX has one instance of thermal sensor for MPU
> + * need to describe the individual bit fields
> + */
> +static struct temp_sensor_registers
> +omap34xx_mpu_temp_sensor_registers = {
> + .temp_sensor_ctrl = 0,
> + .bgap_soc_mask = BIT(8),
> + .bgap_eocz_mask = BIT(7),
> + .bgap_dtemp_mask = 0x7f,
> +
> + .bgap_mode_ctrl = 0,
> + .mode_ctrl_mask = BIT(9),
> +};
> +
> +/* Thresholds and limits for OMAP34XX MPU temperature sensor */
> +static struct temp_sensor_data omap34xx_mpu_temp_sensor_data = {
> + .min_freq = 32768,
> + .max_freq = 32768,
> + .max_temp = -99000,
> + .min_temp = 99000,
> + .hyst_val = 5000,
> +};
> +
> +/*
> + * Temperature values in milli degree celsius
> + */
> +static const int
> +omap34xx_adc_to_temp[128] = {
> + -40000, -40000, -40000, -40000, -40000, -39000, -38000, -36000,
> + -34000, -32000, -31000, -29000, -28000, -26000, -25000, -24000,
> + -22000, -21000, -19000, -18000, -17000, -15000, -14000, -12000,
> + -11000, -9000, -8000, -7000, -5000, -4000, -2000, -1000, 0000,
> + 1000, 3000, 4000, 5000, 7000, 8000, 10000, 11000, 13000, 14000,
> + 15000, 17000, 18000, 20000, 21000, 22000, 24000, 25000, 27000,
> + 28000, 30000, 31000, 32000, 34000, 35000, 37000, 38000, 39000,
> + 41000, 42000, 44000, 45000, 47000, 48000, 49000, 51000, 52000,
> + 53000, 55000, 56000, 58000, 59000, 60000, 62000, 63000, 65000,
> + 66000, 67000, 69000, 70000, 72000, 73000, 74000, 76000, 77000,
> + 79000, 80000, 81000, 83000, 84000, 85000, 87000, 88000, 89000,
> + 91000, 92000, 94000, 95000, 96000, 98000, 99000, 100000,
> + 102000, 103000, 105000, 106000, 107000, 109000, 110000, 111000,
> + 113000, 114000, 116000, 117000, 118000, 120000, 121000, 122000,
> + 124000, 124000, 125000, 125000, 125000, 125000, 125000
> +};
> +
> +/* OMAP34XX data */
> +const struct ti_bandgap_data omap34xx_data = {
> + .features = TI_BANDGAP_FEATURE_CLK_CTRL /* | TI_BANDGAP_FEATURE_MODE_CONFIG */,
> + .fclock_name = "ts_fck",
> + .div_ck_name = "ts_fck",
> + .conv_table = omap34xx_adc_to_temp,
> + .adc_start_val = 0,
> + .adc_end_val = 127,
> + .expose_sensor = ti_thermal_expose_sensor,
> + .remove_sensor = ti_thermal_remove_sensor,
> +
> + .sensors = {
> + {
> + .registers = &omap34xx_mpu_temp_sensor_registers,
> + .ts_data = &omap34xx_mpu_temp_sensor_data,
> + .domain = "cpu",
> + .slope = 0,
> + .constant = 20000,
> + .slope_pcb = 0,
> + .constant_pcb = 20000,
> + .register_cooling = NULL,
> + .unregister_cooling = NULL,
> + },
> + },
> + .sensor_count = 1,
> +};
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> index 634b6ce..2fde78c 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> @@ -1509,6 +1510,12 @@ static SIMPLE_DEV_PM_OPS(ti_bandgap_dev_pm_ops, ti_bandgap_suspend,
> #endif
>
> static const struct of_device_id of_ti_bandgap_match[] = {
> +#ifdef CONFIG_OMAP3_THERMAL
> + {
> + .compatible = "ti,omap34xx-bandgap",
> + .data = (void *)&omap34xx_data,
> + },
> +#endif
> #ifdef CONFIG_OMAP4_THERMAL
> {
> .compatible = "ti,omap4430-bandgap",
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> index b3adf72..9ba9a6b 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> @@ -331,6 +331,7 @@ struct ti_temp_sensor {
> #define TI_BANDGAP_FEATURE_FREEZE_BIT BIT(7)
> #define TI_BANDGAP_FEATURE_COUNTER_DELAY BIT(8)
> #define TI_BANDGAP_FEATURE_HISTORY_BUFFER BIT(9)
> +#define TI_BANDGAP_FEATURE_UNRELIABLE BIT(10)
> #define TI_BANDGAP_HAS(b, f) \
> ((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
>
> @@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
> void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
> int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
>
> -#ifdef CONFIG_OMAP4_THERMAL
> +extern const struct ti_bandgap_data omap34xx_data;
> extern const struct ti_bandgap_data omap4430_data;
> extern const struct ti_bandgap_data omap4460_data;
> extern const struct ti_bandgap_data omap4470_data;
> -#else
> -#define omap4430_data NULL
> -#define omap4460_data NULL
> -#define omap4470_data NULL
> -#endif
> -
> -#ifdef CONFIG_OMAP5_THERMAL
> extern const struct ti_bandgap_data omap5430_data;
> -#else
> -#define omap5430_data NULL
> -#endif
> -
> -#ifdef CONFIG_DRA752_THERMAL
> extern const struct ti_bandgap_data dra752_data;
> -#else
> -#define dra752_data NULL
> -#endif
Pavel,
Why do we need to remove the existing symbols for other chips in this file to get OMAP3 support in?
BR,
> #endif
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 29+ messages in thread* [PATCHv2] thermal: add omap3 support
@ 2015-03-13 5:03 ` Eduardo Valentin
0 siblings, 0 replies; 29+ messages in thread
From: Eduardo Valentin @ 2015-03-13 5:03 UTC (permalink / raw)
To: linux-arm-kernel
On Sun, Jan 18, 2015 at 09:28:24PM +0100, Pavel Machek wrote:
>
> Add support for omap3430 sensor. Tested on Nokia N900.
>
> Fix help text to be closer to english.
>
> Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
> already.
>
> Signed-off-by: Pavel Machek <pavel@ucw.cz>
>
> diff --git a/drivers/thermal/ti-soc-thermal/Kconfig b/drivers/thermal/ti-soc-thermal/Kconfig
> index bd4c7be..65c478e 100644
> --- a/drivers/thermal/ti-soc-thermal/Kconfig
> +++ b/drivers/thermal/ti-soc-thermal/Kconfig
> @@ -21,13 +21,28 @@ config TI_THERMAL
> This includes trip points definitions, extrapolation rules and
> CPU cooling device bindings.
>
> +config OMAP3_THERMAL
> + bool "Texas Instruments OMAP3 thermal support"
> + depends on TI_SOC_THERMAL
> + depends on ARCH_OMAP3
> + help
> + If you say yes here you get thermal support for the Texas Instruments
> + OMAP3 SoC family. The current chips supported are:
> + - OMAP3430
> +
> + OMAP3 chips normally don't need thermal management, and sensors in
> + this generation are not very accurate, nor they are very close to
> + the important hotspots.
> +
> + Say 'N' here.
> +
> config OMAP4_THERMAL
> bool "Texas Instruments OMAP4 thermal support"
> depends on TI_SOC_THERMAL
> depends on ARCH_OMAP4
> help
> If you say yes here you get thermal support for the Texas Instruments
> - OMAP4 SoC family. The current chip supported are:
> + OMAP4 SoC family. The current chips supported are:
> - OMAP4430
> - OMAP4460
> - OMAP4470
> @@ -41,7 +56,7 @@ config OMAP5_THERMAL
> depends on SOC_OMAP5
> help
> If you say yes here you get thermal support for the Texas Instruments
> - OMAP5 SoC family. The current chip supported are:
> + OMAP5 SoC family. The current chips supported are:
> - OMAP5430
>
> This includes alert interrupts generation and also the TSHUT
> @@ -53,7 +68,7 @@ config DRA752_THERMAL
> depends on SOC_DRA7XX
> help
> If you say yes here you get thermal support for the Texas Instruments
> - DRA752 SoC family. The current chip supported are:
> + DRA752 SoC family. The current chips supported are:
> - DRA752
>
> This includes alert interrupts generation and also the TSHUT
> diff --git a/drivers/thermal/ti-soc-thermal/Makefile b/drivers/thermal/ti-soc-thermal/Makefile
> index 1226b24..0f89bdf 100644
> --- a/drivers/thermal/ti-soc-thermal/Makefile
> +++ b/drivers/thermal/ti-soc-thermal/Makefile
> @@ -2,5 +2,6 @@ obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal.o
> ti-soc-thermal-y := ti-bandgap.o
> ti-soc-thermal-$(CONFIG_TI_THERMAL) += ti-thermal-common.o
> ti-soc-thermal-$(CONFIG_DRA752_THERMAL) += dra752-thermal-data.o
> +ti-soc-thermal-$(CONFIG_OMAP3_THERMAL) += omap3-thermal-data.o
> ti-soc-thermal-$(CONFIG_OMAP4_THERMAL) += omap4-thermal-data.o
> ti-soc-thermal-$(CONFIG_OMAP5_THERMAL) += omap5-thermal-data.o
> diff --git a/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
> new file mode 100644
> index 0000000..5cee2a35
> --- /dev/null
> +++ b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
> @@ -0,0 +1,103 @@
> +/*
> + * OMAP3 thermal driver.
> + *
> + * Copyright (C) 2011-2012 Texas Instruments Inc.
> + * Copyright (C) 2014 Pavel Machek <pavel@ucw.cz>
> + *
> + * This software is licensed under the terms of the GNU General Public
> + * License version 2, as published by the Free Software Foundation, and
> + * may be copied, distributed, and modified under those terms.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * Note
> + * http://www.ti.com/lit/er/sprz278f/sprz278f.pdf "Advisory
> + * 3.1.1.186 MMC OCP Clock Not Gated When Thermal Sensor Is Used"
> + *
> + * Also TI says:
> + * Just be careful when you try to make thermal policy like decisions
> + * based on this sensor. Placement of the sensor w.r.t the actual logic
> + * generating heat has to be a factor as well. If you are just looking
> + * for an approximation temperature (thermometerish kind), you might be
> + * ok with this. I am not sure we'd find any TI data around this.. just a
> + * heads up.
> + */
> +
> +#include "ti-thermal.h"
> +#include "ti-bandgap.h"
> +
> +/*
> + * OMAP34XX has one instance of thermal sensor for MPU
> + * need to describe the individual bit fields
> + */
> +static struct temp_sensor_registers
> +omap34xx_mpu_temp_sensor_registers = {
> + .temp_sensor_ctrl = 0,
> + .bgap_soc_mask = BIT(8),
> + .bgap_eocz_mask = BIT(7),
> + .bgap_dtemp_mask = 0x7f,
> +
> + .bgap_mode_ctrl = 0,
> + .mode_ctrl_mask = BIT(9),
> +};
> +
> +/* Thresholds and limits for OMAP34XX MPU temperature sensor */
> +static struct temp_sensor_data omap34xx_mpu_temp_sensor_data = {
> + .min_freq = 32768,
> + .max_freq = 32768,
> + .max_temp = -99000,
> + .min_temp = 99000,
> + .hyst_val = 5000,
> +};
> +
> +/*
> + * Temperature values in milli degree celsius
> + */
> +static const int
> +omap34xx_adc_to_temp[128] = {
> + -40000, -40000, -40000, -40000, -40000, -39000, -38000, -36000,
> + -34000, -32000, -31000, -29000, -28000, -26000, -25000, -24000,
> + -22000, -21000, -19000, -18000, -17000, -15000, -14000, -12000,
> + -11000, -9000, -8000, -7000, -5000, -4000, -2000, -1000, 0000,
> + 1000, 3000, 4000, 5000, 7000, 8000, 10000, 11000, 13000, 14000,
> + 15000, 17000, 18000, 20000, 21000, 22000, 24000, 25000, 27000,
> + 28000, 30000, 31000, 32000, 34000, 35000, 37000, 38000, 39000,
> + 41000, 42000, 44000, 45000, 47000, 48000, 49000, 51000, 52000,
> + 53000, 55000, 56000, 58000, 59000, 60000, 62000, 63000, 65000,
> + 66000, 67000, 69000, 70000, 72000, 73000, 74000, 76000, 77000,
> + 79000, 80000, 81000, 83000, 84000, 85000, 87000, 88000, 89000,
> + 91000, 92000, 94000, 95000, 96000, 98000, 99000, 100000,
> + 102000, 103000, 105000, 106000, 107000, 109000, 110000, 111000,
> + 113000, 114000, 116000, 117000, 118000, 120000, 121000, 122000,
> + 124000, 124000, 125000, 125000, 125000, 125000, 125000
> +};
> +
> +/* OMAP34XX data */
> +const struct ti_bandgap_data omap34xx_data = {
> + .features = TI_BANDGAP_FEATURE_CLK_CTRL /* | TI_BANDGAP_FEATURE_MODE_CONFIG */,
> + .fclock_name = "ts_fck",
> + .div_ck_name = "ts_fck",
> + .conv_table = omap34xx_adc_to_temp,
> + .adc_start_val = 0,
> + .adc_end_val = 127,
> + .expose_sensor = ti_thermal_expose_sensor,
> + .remove_sensor = ti_thermal_remove_sensor,
> +
> + .sensors = {
> + {
> + .registers = &omap34xx_mpu_temp_sensor_registers,
> + .ts_data = &omap34xx_mpu_temp_sensor_data,
> + .domain = "cpu",
> + .slope = 0,
> + .constant = 20000,
> + .slope_pcb = 0,
> + .constant_pcb = 20000,
> + .register_cooling = NULL,
> + .unregister_cooling = NULL,
> + },
> + },
> + .sensor_count = 1,
> +};
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> index 634b6ce..2fde78c 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> @@ -1509,6 +1510,12 @@ static SIMPLE_DEV_PM_OPS(ti_bandgap_dev_pm_ops, ti_bandgap_suspend,
> #endif
>
> static const struct of_device_id of_ti_bandgap_match[] = {
> +#ifdef CONFIG_OMAP3_THERMAL
> + {
> + .compatible = "ti,omap34xx-bandgap",
> + .data = (void *)&omap34xx_data,
> + },
> +#endif
> #ifdef CONFIG_OMAP4_THERMAL
> {
> .compatible = "ti,omap4430-bandgap",
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> index b3adf72..9ba9a6b 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> @@ -331,6 +331,7 @@ struct ti_temp_sensor {
> #define TI_BANDGAP_FEATURE_FREEZE_BIT BIT(7)
> #define TI_BANDGAP_FEATURE_COUNTER_DELAY BIT(8)
> #define TI_BANDGAP_FEATURE_HISTORY_BUFFER BIT(9)
> +#define TI_BANDGAP_FEATURE_UNRELIABLE BIT(10)
> #define TI_BANDGAP_HAS(b, f) \
> ((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
>
> @@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
> void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
> int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
>
> -#ifdef CONFIG_OMAP4_THERMAL
> +extern const struct ti_bandgap_data omap34xx_data;
> extern const struct ti_bandgap_data omap4430_data;
> extern const struct ti_bandgap_data omap4460_data;
> extern const struct ti_bandgap_data omap4470_data;
> -#else
> -#define omap4430_data NULL
> -#define omap4460_data NULL
> -#define omap4470_data NULL
> -#endif
> -
> -#ifdef CONFIG_OMAP5_THERMAL
> extern const struct ti_bandgap_data omap5430_data;
> -#else
> -#define omap5430_data NULL
> -#endif
> -
> -#ifdef CONFIG_DRA752_THERMAL
> extern const struct ti_bandgap_data dra752_data;
> -#else
> -#define dra752_data NULL
> -#endif
Pavel,
Why do we need to remove the existing symbols for other chips in this file to get OMAP3 support in?
BR,
> #endif
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 473 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20150313/618efddf/attachment.sig>
^ permalink raw reply [flat|nested] 29+ messages in thread* Re: [PATCHv2] thermal: add omap3 support
2015-03-13 5:03 ` Eduardo Valentin
@ 2015-03-13 19:40 ` Pavel Machek
-1 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-13 19:40 UTC (permalink / raw)
To: Eduardo Valentin
Cc: rui.zhang, linux-kernel, linux-pm, linux-omap, pali.rohar, sre,
sre, linux-arm-kernel, tony, khilman, aaro.koskinen,
ivo.g.dimitrov.75
Hi!
> > @@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
> > void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
> > int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
> >
> > -#ifdef CONFIG_OMAP4_THERMAL
> > +extern const struct ti_bandgap_data omap34xx_data;
> > extern const struct ti_bandgap_data omap4430_data;
> > extern const struct ti_bandgap_data omap4460_data;
> > extern const struct ti_bandgap_data omap4470_data;
> > -#else
> > -#define omap4430_data NULL
> > -#define omap4460_data NULL
> > -#define omap4470_data NULL
> > -#endif
> > -
> > -#ifdef CONFIG_OMAP5_THERMAL
> > extern const struct ti_bandgap_data omap5430_data;
> > -#else
> > -#define omap5430_data NULL
> > -#endif
> > -
> > -#ifdef CONFIG_DRA752_THERMAL
> > extern const struct ti_bandgap_data dra752_data;
> > -#else
> > -#define dra752_data NULL
> > -#endif
>
> Pavel,
>
> Why do we need to remove the existing symbols for other chips in this file to get OMAP3 support in?
>
No, I don't need to remove this, and you can safely drop this hunk.
OTOH those ifdefs are unneccessary and eye-sore: extern symbol
declarations do not really hurt, and .c files already contain enough
#ifdefs for other reasons that the symbols will not be needed when it
is not configured.
Try it, it should work ok.
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* [PATCHv2] thermal: add omap3 support
@ 2015-03-13 19:40 ` Pavel Machek
0 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-13 19:40 UTC (permalink / raw)
To: linux-arm-kernel
Hi!
> > @@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
> > void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
> > int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
> >
> > -#ifdef CONFIG_OMAP4_THERMAL
> > +extern const struct ti_bandgap_data omap34xx_data;
> > extern const struct ti_bandgap_data omap4430_data;
> > extern const struct ti_bandgap_data omap4460_data;
> > extern const struct ti_bandgap_data omap4470_data;
> > -#else
> > -#define omap4430_data NULL
> > -#define omap4460_data NULL
> > -#define omap4470_data NULL
> > -#endif
> > -
> > -#ifdef CONFIG_OMAP5_THERMAL
> > extern const struct ti_bandgap_data omap5430_data;
> > -#else
> > -#define omap5430_data NULL
> > -#endif
> > -
> > -#ifdef CONFIG_DRA752_THERMAL
> > extern const struct ti_bandgap_data dra752_data;
> > -#else
> > -#define dra752_data NULL
> > -#endif
>
> Pavel,
>
> Why do we need to remove the existing symbols for other chips in this file to get OMAP3 support in?
>
No, I don't need to remove this, and you can safely drop this hunk.
OTOH those ifdefs are unneccessary and eye-sore: extern symbol
declarations do not really hurt, and .c files already contain enough
#ifdefs for other reasons that the symbols will not be needed when it
is not configured.
Try it, it should work ok.
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* Re: [PATCHv2] thermal: add omap3 support
2015-01-18 20:28 ` Pavel Machek
@ 2015-03-13 12:09 ` Pavel Machek
-1 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-13 12:09 UTC (permalink / raw)
To: edubezval, rui.zhang, linux-kernel, linux-pm, linux-omap
Cc: pali.rohar, sre, sre, linux-arm-kernel, tony, khilman,
aaro.koskinen, ivo.g.dimitrov.75
Hi!
I checked 4.0-rc3 and linux-next as of today, and can not see omap3
thermal support. Can you apply the patches?
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* [PATCHv2] thermal: add omap3 support
@ 2015-03-13 12:09 ` Pavel Machek
0 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-13 12:09 UTC (permalink / raw)
To: linux-arm-kernel
Hi!
I checked 4.0-rc3 and linux-next as of today, and can not see omap3
thermal support. Can you apply the patches?
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* Re: [PATCHv2] thermal: add omap3 support
2015-03-13 12:09 ` Pavel Machek
@ 2015-03-13 16:53 ` Eduardo Valentin
-1 siblings, 0 replies; 29+ messages in thread
From: Eduardo Valentin @ 2015-03-13 16:53 UTC (permalink / raw)
To: Pavel Machek
Cc: rui.zhang, linux-kernel, linux-pm, linux-omap, pali.rohar, sre,
sre, linux-arm-kernel, tony, khilman, aaro.koskinen,
ivo.g.dimitrov.75
[-- Attachment #1: Type: text/plain, Size: 554 bytes --]
Hey Pavel,
On Fri, Mar 13, 2015 at 01:09:35PM +0100, Pavel Machek wrote:
> Hi!
>
> I checked 4.0-rc3 and linux-next as of today, and can not see omap3
> thermal support. Can you apply the patches?
Yeah, it should be possible. Apologize, it really fell into the cracks.
There is a comment on it though. Please check my concern in you v2.
BR,
Eduardo
>
> Thanks,
> Pavel
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 29+ messages in thread
* [PATCHv2] thermal: add omap3 support
@ 2015-03-13 16:53 ` Eduardo Valentin
0 siblings, 0 replies; 29+ messages in thread
From: Eduardo Valentin @ 2015-03-13 16:53 UTC (permalink / raw)
To: linux-arm-kernel
Hey Pavel,
On Fri, Mar 13, 2015 at 01:09:35PM +0100, Pavel Machek wrote:
> Hi!
>
> I checked 4.0-rc3 and linux-next as of today, and can not see omap3
> thermal support. Can you apply the patches?
Yeah, it should be possible. Apologize, it really fell into the cracks.
There is a comment on it though. Please check my concern in you v2.
BR,
Eduardo
>
> Thanks,
> Pavel
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 473 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20150313/f586443f/attachment.sig>
^ permalink raw reply [flat|nested] 29+ messages in thread
* Re: [PATCHv2] thermal: add omap3 support
2015-03-13 16:53 ` Eduardo Valentin
@ 2015-03-14 18:02 ` Pavel Machek
-1 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-14 18:02 UTC (permalink / raw)
To: Eduardo Valentin
Cc: rui.zhang, linux-kernel, linux-pm, linux-omap, pali.rohar, sre,
sre, linux-arm-kernel, tony, khilman, aaro.koskinen,
ivo.g.dimitrov.75
On Fri 2015-03-13 12:53:45, Eduardo Valentin wrote:
>
> Hey Pavel,
>
> On Fri, Mar 13, 2015 at 01:09:35PM +0100, Pavel Machek wrote:
> > Hi!
> >
> > I checked 4.0-rc3 and linux-next as of today, and can not see omap3
> > thermal support. Can you apply the patches?
>
> Yeah, it should be possible. Apologize, it really fell into the cracks.
>
> There is a comment on it though. Please check my concern in you v2.
And there's explanation for that concern :-). Let me know what you
need.
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* [PATCHv2] thermal: add omap3 support
@ 2015-03-14 18:02 ` Pavel Machek
0 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-14 18:02 UTC (permalink / raw)
To: linux-arm-kernel
On Fri 2015-03-13 12:53:45, Eduardo Valentin wrote:
>
> Hey Pavel,
>
> On Fri, Mar 13, 2015 at 01:09:35PM +0100, Pavel Machek wrote:
> > Hi!
> >
> > I checked 4.0-rc3 and linux-next as of today, and can not see omap3
> > thermal support. Can you apply the patches?
>
> Yeah, it should be possible. Apologize, it really fell into the cracks.
>
> There is a comment on it though. Please check my concern in you v2.
And there's explanation for that concern :-). Let me know what you
need.
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* Re: [PATCHv2] thermal: add omap3 support
2015-03-14 18:02 ` Pavel Machek
@ 2015-03-23 11:25 ` Pavel Machek
-1 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-23 11:25 UTC (permalink / raw)
To: Eduardo Valentin
Cc: rui.zhang, linux-kernel, linux-pm, linux-omap, pali.rohar, sre,
sre, linux-arm-kernel, tony, khilman, aaro.koskinen,
ivo.g.dimitrov.75
On Sat 2015-03-14 19:02:40, Pavel Machek wrote:
> On Fri 2015-03-13 12:53:45, Eduardo Valentin wrote:
> >
> > Hey Pavel,
> >
> > On Fri, Mar 13, 2015 at 01:09:35PM +0100, Pavel Machek wrote:
> > > Hi!
> > >
> > > I checked 4.0-rc3 and linux-next as of today, and can not see omap3
> > > thermal support. Can you apply the patches?
> >
> > Yeah, it should be possible. Apologize, it really fell into the cracks.
> >
> > There is a comment on it though. Please check my concern in you v2.
>
> And there's explanation for that concern :-). Let me know what you
> need.
...ping? It would be good to get this into 4.1.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* [PATCHv2] thermal: add omap3 support
@ 2015-03-23 11:25 ` Pavel Machek
0 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-23 11:25 UTC (permalink / raw)
To: linux-arm-kernel
On Sat 2015-03-14 19:02:40, Pavel Machek wrote:
> On Fri 2015-03-13 12:53:45, Eduardo Valentin wrote:
> >
> > Hey Pavel,
> >
> > On Fri, Mar 13, 2015 at 01:09:35PM +0100, Pavel Machek wrote:
> > > Hi!
> > >
> > > I checked 4.0-rc3 and linux-next as of today, and can not see omap3
> > > thermal support. Can you apply the patches?
> >
> > Yeah, it should be possible. Apologize, it really fell into the cracks.
> >
> > There is a comment on it though. Please check my concern in you v2.
>
> And there's explanation for that concern :-). Let me know what you
> need.
...ping? It would be good to get this into 4.1.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* Re: [PATCHv2] thermal: add omap3 support
2015-01-18 20:28 ` Pavel Machek
@ 2015-03-23 14:31 ` Eduardo Valentin
-1 siblings, 0 replies; 29+ messages in thread
From: Eduardo Valentin @ 2015-03-23 14:31 UTC (permalink / raw)
To: Pavel Machek
Cc: rui.zhang, linux-kernel, linux-pm, linux-omap, pali.rohar, sre,
sre, linux-arm-kernel, tony, khilman, aaro.koskinen,
ivo.g.dimitrov.75
[-- Attachment #1: Type: text/plain, Size: 10090 bytes --]
On Sun, Jan 18, 2015 at 09:28:24PM +0100, Pavel Machek wrote:
>
> Add support for omap3430 sensor. Tested on Nokia N900.
>
> Fix help text to be closer to english.
>
> Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
> already.
>
> Signed-off-by: Pavel Machek <pavel@ucw.cz>
You need to update the driver device tree binding documentation. Please
include an example of its usage there.
Also, a separate patch with the required DT changes is always welcome.
>
> diff --git a/drivers/thermal/ti-soc-thermal/Kconfig b/drivers/thermal/ti-soc-thermal/Kconfig
> index bd4c7be..65c478e 100644
> --- a/drivers/thermal/ti-soc-thermal/Kconfig
> +++ b/drivers/thermal/ti-soc-thermal/Kconfig
> @@ -21,13 +21,28 @@ config TI_THERMAL
> This includes trip points definitions, extrapolation rules and
> CPU cooling device bindings.
>
> +config OMAP3_THERMAL
> + bool "Texas Instruments OMAP3 thermal support"
> + depends on TI_SOC_THERMAL
> + depends on ARCH_OMAP3
> + help
> + If you say yes here you get thermal support for the Texas Instruments
> + OMAP3 SoC family. The current chips supported are:
> + - OMAP3430
> +
> + OMAP3 chips normally don't need thermal management, and sensors in
> + this generation are not very accurate, nor they are very close to
> + the important hotspots.
> +
> + Say 'N' here.
> +
> config OMAP4_THERMAL
> bool "Texas Instruments OMAP4 thermal support"
> depends on TI_SOC_THERMAL
> depends on ARCH_OMAP4
> help
> If you say yes here you get thermal support for the Texas Instruments
> - OMAP4 SoC family. The current chip supported are:
> + OMAP4 SoC family. The current chips supported are:
> - OMAP4430
> - OMAP4460
> - OMAP4470
> @@ -41,7 +56,7 @@ config OMAP5_THERMAL
> depends on SOC_OMAP5
> help
> If you say yes here you get thermal support for the Texas Instruments
> - OMAP5 SoC family. The current chip supported are:
> + OMAP5 SoC family. The current chips supported are:
> - OMAP5430
>
> This includes alert interrupts generation and also the TSHUT
> @@ -53,7 +68,7 @@ config DRA752_THERMAL
> depends on SOC_DRA7XX
> help
> If you say yes here you get thermal support for the Texas Instruments
> - DRA752 SoC family. The current chip supported are:
> + DRA752 SoC family. The current chips supported are:
minor: I would prefer you fix this in a separate patch.
> - DRA752
>
> This includes alert interrupts generation and also the TSHUT
> diff --git a/drivers/thermal/ti-soc-thermal/Makefile b/drivers/thermal/ti-soc-thermal/Makefile
> index 1226b24..0f89bdf 100644
> --- a/drivers/thermal/ti-soc-thermal/Makefile
> +++ b/drivers/thermal/ti-soc-thermal/Makefile
> @@ -2,5 +2,6 @@ obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal.o
> ti-soc-thermal-y := ti-bandgap.o
> ti-soc-thermal-$(CONFIG_TI_THERMAL) += ti-thermal-common.o
> ti-soc-thermal-$(CONFIG_DRA752_THERMAL) += dra752-thermal-data.o
> +ti-soc-thermal-$(CONFIG_OMAP3_THERMAL) += omap3-thermal-data.o
> ti-soc-thermal-$(CONFIG_OMAP4_THERMAL) += omap4-thermal-data.o
> ti-soc-thermal-$(CONFIG_OMAP5_THERMAL) += omap5-thermal-data.o
> diff --git a/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
> new file mode 100644
> index 0000000..5cee2a35
> --- /dev/null
> +++ b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
> @@ -0,0 +1,103 @@
> +/*
> + * OMAP3 thermal driver.
> + *
> + * Copyright (C) 2011-2012 Texas Instruments Inc.
> + * Copyright (C) 2014 Pavel Machek <pavel@ucw.cz>
> + *
> + * This software is licensed under the terms of the GNU General Public
> + * License version 2, as published by the Free Software Foundation, and
> + * may be copied, distributed, and modified under those terms.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * Note
> + * http://www.ti.com/lit/er/sprz278f/sprz278f.pdf "Advisory
> + * 3.1.1.186 MMC OCP Clock Not Gated When Thermal Sensor Is Used"
> + *
> + * Also TI says:
> + * Just be careful when you try to make thermal policy like decisions
> + * based on this sensor. Placement of the sensor w.r.t the actual logic
> + * generating heat has to be a factor as well. If you are just looking
> + * for an approximation temperature (thermometerish kind), you might be
> + * ok with this. I am not sure we'd find any TI data around this.. just a
> + * heads up.
> + */
> +
> +#include "ti-thermal.h"
> +#include "ti-bandgap.h"
> +
> +/*
> + * OMAP34XX has one instance of thermal sensor for MPU
> + * need to describe the individual bit fields
> + */
> +static struct temp_sensor_registers
> +omap34xx_mpu_temp_sensor_registers = {
> + .temp_sensor_ctrl = 0,
> + .bgap_soc_mask = BIT(8),
> + .bgap_eocz_mask = BIT(7),
> + .bgap_dtemp_mask = 0x7f,
> +
> + .bgap_mode_ctrl = 0,
> + .mode_ctrl_mask = BIT(9),
> +};
> +
> +/* Thresholds and limits for OMAP34XX MPU temperature sensor */
> +static struct temp_sensor_data omap34xx_mpu_temp_sensor_data = {
> + .min_freq = 32768,
> + .max_freq = 32768,
> + .max_temp = -99000,
> + .min_temp = 99000,
> + .hyst_val = 5000,
> +};
> +
> +/*
> + * Temperature values in milli degree celsius
> + */
> +static const int
> +omap34xx_adc_to_temp[128] = {
> + -40000, -40000, -40000, -40000, -40000, -39000, -38000, -36000,
> + -34000, -32000, -31000, -29000, -28000, -26000, -25000, -24000,
> + -22000, -21000, -19000, -18000, -17000, -15000, -14000, -12000,
> + -11000, -9000, -8000, -7000, -5000, -4000, -2000, -1000, 0000,
> + 1000, 3000, 4000, 5000, 7000, 8000, 10000, 11000, 13000, 14000,
> + 15000, 17000, 18000, 20000, 21000, 22000, 24000, 25000, 27000,
> + 28000, 30000, 31000, 32000, 34000, 35000, 37000, 38000, 39000,
> + 41000, 42000, 44000, 45000, 47000, 48000, 49000, 51000, 52000,
> + 53000, 55000, 56000, 58000, 59000, 60000, 62000, 63000, 65000,
> + 66000, 67000, 69000, 70000, 72000, 73000, 74000, 76000, 77000,
> + 79000, 80000, 81000, 83000, 84000, 85000, 87000, 88000, 89000,
> + 91000, 92000, 94000, 95000, 96000, 98000, 99000, 100000,
> + 102000, 103000, 105000, 106000, 107000, 109000, 110000, 111000,
> + 113000, 114000, 116000, 117000, 118000, 120000, 121000, 122000,
> + 124000, 124000, 125000, 125000, 125000, 125000, 125000
> +};
> +
> +/* OMAP34XX data */
> +const struct ti_bandgap_data omap34xx_data = {
> + .features = TI_BANDGAP_FEATURE_CLK_CTRL /* | TI_BANDGAP_FEATURE_MODE_CONFIG */,
Shouldn't this be unreliable?
> + .fclock_name = "ts_fck",
> + .div_ck_name = "ts_fck",
> + .conv_table = omap34xx_adc_to_temp,
> + .adc_start_val = 0,
> + .adc_end_val = 127,
> + .expose_sensor = ti_thermal_expose_sensor,
> + .remove_sensor = ti_thermal_remove_sensor,
> +
> + .sensors = {
> + {
> + .registers = &omap34xx_mpu_temp_sensor_registers,
> + .ts_data = &omap34xx_mpu_temp_sensor_data,
> + .domain = "cpu",
> + .slope = 0,
> + .constant = 20000,
> + .slope_pcb = 0,
> + .constant_pcb = 20000,
> + .register_cooling = NULL,
> + .unregister_cooling = NULL,
> + },
> + },
> + .sensor_count = 1,
> +};
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
You did not use the bit you created to warn the user about the chip.
> index 634b6ce..2fde78c 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> @@ -1509,6 +1510,12 @@ static SIMPLE_DEV_PM_OPS(ti_bandgap_dev_pm_ops, ti_bandgap_suspend,
> #endif
>
> static const struct of_device_id of_ti_bandgap_match[] = {
> +#ifdef CONFIG_OMAP3_THERMAL
> + {
> + .compatible = "ti,omap34xx-bandgap",
> + .data = (void *)&omap34xx_data,
> + },
> +#endif
> #ifdef CONFIG_OMAP4_THERMAL
> {
> .compatible = "ti,omap4430-bandgap",
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> index b3adf72..9ba9a6b 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> @@ -331,6 +331,7 @@ struct ti_temp_sensor {
> #define TI_BANDGAP_FEATURE_FREEZE_BIT BIT(7)
> #define TI_BANDGAP_FEATURE_COUNTER_DELAY BIT(8)
> #define TI_BANDGAP_FEATURE_HISTORY_BUFFER BIT(9)
> +#define TI_BANDGAP_FEATURE_UNRELIABLE BIT(10)
This needs to go somewhere else too in your patch.
> #define TI_BANDGAP_HAS(b, f) \
> ((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
>
> @@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
> void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
> int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
>
> -#ifdef CONFIG_OMAP4_THERMAL
> +extern const struct ti_bandgap_data omap34xx_data;
Please, keep one change per patch. If you think it is good to remove the
ifdefs here, send a separate patch. Keep in mind that, if you are
removing the ifdefs, I would prefer you remove from the .c file.
> extern const struct ti_bandgap_data omap4430_data;
> extern const struct ti_bandgap_data omap4460_data;
> extern const struct ti_bandgap_data omap4470_data;
> -#else
> -#define omap4430_data NULL
> -#define omap4460_data NULL
> -#define omap4470_data NULL
> -#endif
> -
> -#ifdef CONFIG_OMAP5_THERMAL
> extern const struct ti_bandgap_data omap5430_data;
> -#else
> -#define omap5430_data NULL
> -#endif
> -
> -#ifdef CONFIG_DRA752_THERMAL
> extern const struct ti_bandgap_data dra752_data;
> -#else
> -#define dra752_data NULL
> -#endif
> #endif
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 29+ messages in thread* [PATCHv2] thermal: add omap3 support
@ 2015-03-23 14:31 ` Eduardo Valentin
0 siblings, 0 replies; 29+ messages in thread
From: Eduardo Valentin @ 2015-03-23 14:31 UTC (permalink / raw)
To: linux-arm-kernel
On Sun, Jan 18, 2015 at 09:28:24PM +0100, Pavel Machek wrote:
>
> Add support for omap3430 sensor. Tested on Nokia N900.
>
> Fix help text to be closer to english.
>
> Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
> already.
>
> Signed-off-by: Pavel Machek <pavel@ucw.cz>
You need to update the driver device tree binding documentation. Please
include an example of its usage there.
Also, a separate patch with the required DT changes is always welcome.
>
> diff --git a/drivers/thermal/ti-soc-thermal/Kconfig b/drivers/thermal/ti-soc-thermal/Kconfig
> index bd4c7be..65c478e 100644
> --- a/drivers/thermal/ti-soc-thermal/Kconfig
> +++ b/drivers/thermal/ti-soc-thermal/Kconfig
> @@ -21,13 +21,28 @@ config TI_THERMAL
> This includes trip points definitions, extrapolation rules and
> CPU cooling device bindings.
>
> +config OMAP3_THERMAL
> + bool "Texas Instruments OMAP3 thermal support"
> + depends on TI_SOC_THERMAL
> + depends on ARCH_OMAP3
> + help
> + If you say yes here you get thermal support for the Texas Instruments
> + OMAP3 SoC family. The current chips supported are:
> + - OMAP3430
> +
> + OMAP3 chips normally don't need thermal management, and sensors in
> + this generation are not very accurate, nor they are very close to
> + the important hotspots.
> +
> + Say 'N' here.
> +
> config OMAP4_THERMAL
> bool "Texas Instruments OMAP4 thermal support"
> depends on TI_SOC_THERMAL
> depends on ARCH_OMAP4
> help
> If you say yes here you get thermal support for the Texas Instruments
> - OMAP4 SoC family. The current chip supported are:
> + OMAP4 SoC family. The current chips supported are:
> - OMAP4430
> - OMAP4460
> - OMAP4470
> @@ -41,7 +56,7 @@ config OMAP5_THERMAL
> depends on SOC_OMAP5
> help
> If you say yes here you get thermal support for the Texas Instruments
> - OMAP5 SoC family. The current chip supported are:
> + OMAP5 SoC family. The current chips supported are:
> - OMAP5430
>
> This includes alert interrupts generation and also the TSHUT
> @@ -53,7 +68,7 @@ config DRA752_THERMAL
> depends on SOC_DRA7XX
> help
> If you say yes here you get thermal support for the Texas Instruments
> - DRA752 SoC family. The current chip supported are:
> + DRA752 SoC family. The current chips supported are:
minor: I would prefer you fix this in a separate patch.
> - DRA752
>
> This includes alert interrupts generation and also the TSHUT
> diff --git a/drivers/thermal/ti-soc-thermal/Makefile b/drivers/thermal/ti-soc-thermal/Makefile
> index 1226b24..0f89bdf 100644
> --- a/drivers/thermal/ti-soc-thermal/Makefile
> +++ b/drivers/thermal/ti-soc-thermal/Makefile
> @@ -2,5 +2,6 @@ obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal.o
> ti-soc-thermal-y := ti-bandgap.o
> ti-soc-thermal-$(CONFIG_TI_THERMAL) += ti-thermal-common.o
> ti-soc-thermal-$(CONFIG_DRA752_THERMAL) += dra752-thermal-data.o
> +ti-soc-thermal-$(CONFIG_OMAP3_THERMAL) += omap3-thermal-data.o
> ti-soc-thermal-$(CONFIG_OMAP4_THERMAL) += omap4-thermal-data.o
> ti-soc-thermal-$(CONFIG_OMAP5_THERMAL) += omap5-thermal-data.o
> diff --git a/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
> new file mode 100644
> index 0000000..5cee2a35
> --- /dev/null
> +++ b/drivers/thermal/ti-soc-thermal/omap3-thermal-data.c
> @@ -0,0 +1,103 @@
> +/*
> + * OMAP3 thermal driver.
> + *
> + * Copyright (C) 2011-2012 Texas Instruments Inc.
> + * Copyright (C) 2014 Pavel Machek <pavel@ucw.cz>
> + *
> + * This software is licensed under the terms of the GNU General Public
> + * License version 2, as published by the Free Software Foundation, and
> + * may be copied, distributed, and modified under those terms.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * Note
> + * http://www.ti.com/lit/er/sprz278f/sprz278f.pdf "Advisory
> + * 3.1.1.186 MMC OCP Clock Not Gated When Thermal Sensor Is Used"
> + *
> + * Also TI says:
> + * Just be careful when you try to make thermal policy like decisions
> + * based on this sensor. Placement of the sensor w.r.t the actual logic
> + * generating heat has to be a factor as well. If you are just looking
> + * for an approximation temperature (thermometerish kind), you might be
> + * ok with this. I am not sure we'd find any TI data around this.. just a
> + * heads up.
> + */
> +
> +#include "ti-thermal.h"
> +#include "ti-bandgap.h"
> +
> +/*
> + * OMAP34XX has one instance of thermal sensor for MPU
> + * need to describe the individual bit fields
> + */
> +static struct temp_sensor_registers
> +omap34xx_mpu_temp_sensor_registers = {
> + .temp_sensor_ctrl = 0,
> + .bgap_soc_mask = BIT(8),
> + .bgap_eocz_mask = BIT(7),
> + .bgap_dtemp_mask = 0x7f,
> +
> + .bgap_mode_ctrl = 0,
> + .mode_ctrl_mask = BIT(9),
> +};
> +
> +/* Thresholds and limits for OMAP34XX MPU temperature sensor */
> +static struct temp_sensor_data omap34xx_mpu_temp_sensor_data = {
> + .min_freq = 32768,
> + .max_freq = 32768,
> + .max_temp = -99000,
> + .min_temp = 99000,
> + .hyst_val = 5000,
> +};
> +
> +/*
> + * Temperature values in milli degree celsius
> + */
> +static const int
> +omap34xx_adc_to_temp[128] = {
> + -40000, -40000, -40000, -40000, -40000, -39000, -38000, -36000,
> + -34000, -32000, -31000, -29000, -28000, -26000, -25000, -24000,
> + -22000, -21000, -19000, -18000, -17000, -15000, -14000, -12000,
> + -11000, -9000, -8000, -7000, -5000, -4000, -2000, -1000, 0000,
> + 1000, 3000, 4000, 5000, 7000, 8000, 10000, 11000, 13000, 14000,
> + 15000, 17000, 18000, 20000, 21000, 22000, 24000, 25000, 27000,
> + 28000, 30000, 31000, 32000, 34000, 35000, 37000, 38000, 39000,
> + 41000, 42000, 44000, 45000, 47000, 48000, 49000, 51000, 52000,
> + 53000, 55000, 56000, 58000, 59000, 60000, 62000, 63000, 65000,
> + 66000, 67000, 69000, 70000, 72000, 73000, 74000, 76000, 77000,
> + 79000, 80000, 81000, 83000, 84000, 85000, 87000, 88000, 89000,
> + 91000, 92000, 94000, 95000, 96000, 98000, 99000, 100000,
> + 102000, 103000, 105000, 106000, 107000, 109000, 110000, 111000,
> + 113000, 114000, 116000, 117000, 118000, 120000, 121000, 122000,
> + 124000, 124000, 125000, 125000, 125000, 125000, 125000
> +};
> +
> +/* OMAP34XX data */
> +const struct ti_bandgap_data omap34xx_data = {
> + .features = TI_BANDGAP_FEATURE_CLK_CTRL /* | TI_BANDGAP_FEATURE_MODE_CONFIG */,
Shouldn't this be unreliable?
> + .fclock_name = "ts_fck",
> + .div_ck_name = "ts_fck",
> + .conv_table = omap34xx_adc_to_temp,
> + .adc_start_val = 0,
> + .adc_end_val = 127,
> + .expose_sensor = ti_thermal_expose_sensor,
> + .remove_sensor = ti_thermal_remove_sensor,
> +
> + .sensors = {
> + {
> + .registers = &omap34xx_mpu_temp_sensor_registers,
> + .ts_data = &omap34xx_mpu_temp_sensor_data,
> + .domain = "cpu",
> + .slope = 0,
> + .constant = 20000,
> + .slope_pcb = 0,
> + .constant_pcb = 20000,
> + .register_cooling = NULL,
> + .unregister_cooling = NULL,
> + },
> + },
> + .sensor_count = 1,
> +};
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
You did not use the bit you created to warn the user about the chip.
> index 634b6ce..2fde78c 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> @@ -1509,6 +1510,12 @@ static SIMPLE_DEV_PM_OPS(ti_bandgap_dev_pm_ops, ti_bandgap_suspend,
> #endif
>
> static const struct of_device_id of_ti_bandgap_match[] = {
> +#ifdef CONFIG_OMAP3_THERMAL
> + {
> + .compatible = "ti,omap34xx-bandgap",
> + .data = (void *)&omap34xx_data,
> + },
> +#endif
> #ifdef CONFIG_OMAP4_THERMAL
> {
> .compatible = "ti,omap4430-bandgap",
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> index b3adf72..9ba9a6b 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
> @@ -331,6 +331,7 @@ struct ti_temp_sensor {
> #define TI_BANDGAP_FEATURE_FREEZE_BIT BIT(7)
> #define TI_BANDGAP_FEATURE_COUNTER_DELAY BIT(8)
> #define TI_BANDGAP_FEATURE_HISTORY_BUFFER BIT(9)
> +#define TI_BANDGAP_FEATURE_UNRELIABLE BIT(10)
This needs to go somewhere else too in your patch.
> #define TI_BANDGAP_HAS(b, f) \
> ((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
>
> @@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
> void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
> int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
>
> -#ifdef CONFIG_OMAP4_THERMAL
> +extern const struct ti_bandgap_data omap34xx_data;
Please, keep one change per patch. If you think it is good to remove the
ifdefs here, send a separate patch. Keep in mind that, if you are
removing the ifdefs, I would prefer you remove from the .c file.
> extern const struct ti_bandgap_data omap4430_data;
> extern const struct ti_bandgap_data omap4460_data;
> extern const struct ti_bandgap_data omap4470_data;
> -#else
> -#define omap4430_data NULL
> -#define omap4460_data NULL
> -#define omap4470_data NULL
> -#endif
> -
> -#ifdef CONFIG_OMAP5_THERMAL
> extern const struct ti_bandgap_data omap5430_data;
> -#else
> -#define omap5430_data NULL
> -#endif
> -
> -#ifdef CONFIG_DRA752_THERMAL
> extern const struct ti_bandgap_data dra752_data;
> -#else
> -#define dra752_data NULL
> -#endif
> #endif
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 473 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20150323/cf65afd7/attachment.sig>
^ permalink raw reply [flat|nested] 29+ messages in thread* Re: [PATCHv2] thermal: add omap3 support
2015-03-23 14:31 ` Eduardo Valentin
@ 2015-03-23 15:58 ` Pavel Machek
-1 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-23 15:58 UTC (permalink / raw)
To: Eduardo Valentin
Cc: rui.zhang, linux-kernel, linux-pm, linux-omap, pali.rohar, sre,
sre, linux-arm-kernel, tony, khilman, aaro.koskinen,
ivo.g.dimitrov.75
On Mon 2015-03-23 10:31:51, Eduardo Valentin wrote:
> On Sun, Jan 18, 2015 at 09:28:24PM +0100, Pavel Machek wrote:
> >
> > Add support for omap3430 sensor. Tested on Nokia N900.
> >
> > Fix help text to be closer to english.
> >
> > Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
> > already.
> >
> > Signed-off-by: Pavel Machek <pavel@ucw.cz>
>
> You need to update the driver device tree binding documentation. Please
> include an example of its usage there.
>
> Also, a separate patch with the required DT changes is always
> welcome.
I can do it, but can you merge:
Date: Sun, 18 Jan 2015 21:24:47 +0100
From: Pavel Machek <pavel@ucw.cz>
Subject: [PATCHv2] ti-soc-thermal: request temperature periodically if
hw can't do that itself
Date: Sun, 18 Jan 2015 21:20:51 +0100
From: Pavel Machek <pavel@ucw.cz>
Subject: [PATCHv2] ti-soc-thermal: implement eocz bit to make driver
useful on omap3
Date: Sun, 18 Jan 2015 21:17:10 +0100
From: Pavel Machek <pavel@ucw.cz>
Subject: [PATCHv2] cleanup ti-soc-thermal
First? They are nicely split, as you requested, and I already have too
many patches in flight.
Thanks for the comments, I'll fix them in my local tree.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* [PATCHv2] thermal: add omap3 support
@ 2015-03-23 15:58 ` Pavel Machek
0 siblings, 0 replies; 29+ messages in thread
From: Pavel Machek @ 2015-03-23 15:58 UTC (permalink / raw)
To: linux-arm-kernel
On Mon 2015-03-23 10:31:51, Eduardo Valentin wrote:
> On Sun, Jan 18, 2015 at 09:28:24PM +0100, Pavel Machek wrote:
> >
> > Add support for omap3430 sensor. Tested on Nokia N900.
> >
> > Fix help text to be closer to english.
> >
> > Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
> > already.
> >
> > Signed-off-by: Pavel Machek <pavel@ucw.cz>
>
> You need to update the driver device tree binding documentation. Please
> include an example of its usage there.
>
> Also, a separate patch with the required DT changes is always
> welcome.
I can do it, but can you merge:
Date: Sun, 18 Jan 2015 21:24:47 +0100
From: Pavel Machek <pavel@ucw.cz>
Subject: [PATCHv2] ti-soc-thermal: request temperature periodically if
hw can't do that itself
Date: Sun, 18 Jan 2015 21:20:51 +0100
From: Pavel Machek <pavel@ucw.cz>
Subject: [PATCHv2] ti-soc-thermal: implement eocz bit to make driver
useful on omap3
Date: Sun, 18 Jan 2015 21:17:10 +0100
From: Pavel Machek <pavel@ucw.cz>
Subject: [PATCHv2] cleanup ti-soc-thermal
First? They are nicely split, as you requested, and I already have too
many patches in flight.
Thanks for the comments, I'll fix them in my local tree.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 29+ messages in thread
* Re: [PATCHv2] thermal: add omap3 support
2015-03-23 15:58 ` Pavel Machek
@ 2015-03-23 17:55 ` Eduardo Valentin
-1 siblings, 0 replies; 29+ messages in thread
From: Eduardo Valentin @ 2015-03-23 17:55 UTC (permalink / raw)
To: Pavel Machek
Cc: rui.zhang, linux-kernel, linux-pm, linux-omap, pali.rohar, sre,
sre, linux-arm-kernel, tony, khilman, aaro.koskinen,
ivo.g.dimitrov.75
[-- Attachment #1: Type: text/plain, Size: 1733 bytes --]
On Mon, Mar 23, 2015 at 04:58:30PM +0100, Pavel Machek wrote:
> On Mon 2015-03-23 10:31:51, Eduardo Valentin wrote:
> > On Sun, Jan 18, 2015 at 09:28:24PM +0100, Pavel Machek wrote:
> > >
> > > Add support for omap3430 sensor. Tested on Nokia N900.
> > >
> > > Fix help text to be closer to english.
> > >
> > > Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
> > > already.
> > >
> > > Signed-off-by: Pavel Machek <pavel@ucw.cz>
> >
> > You need to update the driver device tree binding documentation. Please
> > include an example of its usage there.
> >
> > Also, a separate patch with the required DT changes is always
> > welcome.
>
> I can do it, but can you merge:
>
> Date: Sun, 18 Jan 2015 21:24:47 +0100
> From: Pavel Machek <pavel@ucw.cz>
> Subject: [PATCHv2] ti-soc-thermal: request temperature periodically if
> hw can't do that itself
>
>
> Date: Sun, 18 Jan 2015 21:20:51 +0100
> From: Pavel Machek <pavel@ucw.cz>
> Subject: [PATCHv2] ti-soc-thermal: implement eocz bit to make driver
> useful on omap3
>
> Date: Sun, 18 Jan 2015 21:17:10 +0100
> From: Pavel Machek <pavel@ucw.cz>
> Subject: [PATCHv2] cleanup ti-soc-thermal
>
> First? They are nicely split, as you requested, and I already have too
> many patches in flight.
>
> Thanks for the comments, I'll fix them in my local tree.
> Pavel
Somehow I really thought I already sent those above. I really apologize
for the inconvenience. It seams like they've fallen into the cracks.
I will check those and apply accordingly.
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 29+ messages in thread
* [PATCHv2] thermal: add omap3 support
@ 2015-03-23 17:55 ` Eduardo Valentin
0 siblings, 0 replies; 29+ messages in thread
From: Eduardo Valentin @ 2015-03-23 17:55 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Mar 23, 2015 at 04:58:30PM +0100, Pavel Machek wrote:
> On Mon 2015-03-23 10:31:51, Eduardo Valentin wrote:
> > On Sun, Jan 18, 2015 at 09:28:24PM +0100, Pavel Machek wrote:
> > >
> > > Add support for omap3430 sensor. Tested on Nokia N900.
> > >
> > > Fix help text to be closer to english.
> > >
> > > Ifdefs in ti-bandgap.h are not neccessary, as users have #ifdefs,
> > > already.
> > >
> > > Signed-off-by: Pavel Machek <pavel@ucw.cz>
> >
> > You need to update the driver device tree binding documentation. Please
> > include an example of its usage there.
> >
> > Also, a separate patch with the required DT changes is always
> > welcome.
>
> I can do it, but can you merge:
>
> Date: Sun, 18 Jan 2015 21:24:47 +0100
> From: Pavel Machek <pavel@ucw.cz>
> Subject: [PATCHv2] ti-soc-thermal: request temperature periodically if
> hw can't do that itself
>
>
> Date: Sun, 18 Jan 2015 21:20:51 +0100
> From: Pavel Machek <pavel@ucw.cz>
> Subject: [PATCHv2] ti-soc-thermal: implement eocz bit to make driver
> useful on omap3
>
> Date: Sun, 18 Jan 2015 21:17:10 +0100
> From: Pavel Machek <pavel@ucw.cz>
> Subject: [PATCHv2] cleanup ti-soc-thermal
>
> First? They are nicely split, as you requested, and I already have too
> many patches in flight.
>
> Thanks for the comments, I'll fix them in my local tree.
> Pavel
Somehow I really thought I already sent those above. I really apologize
for the inconvenience. It seams like they've fallen into the cracks.
I will check those and apply accordingly.
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 473 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20150323/78c3e107/attachment.sig>
^ permalink raw reply [flat|nested] 29+ messages in thread