This is a patch series for thermal driver for Sunplus SoC.
Sunplus SP7021 is an ARM Cortex A7 (4 cores) based SoC. It integrates
many peripherals (ex: UART, I2C, SPI, SDIO, eMMC, USB, SD card and
etc.) into a single chip. It is designed for industrial control.
Refer to:
https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview
https://tibbo.com/store/plus1.html
Li-hao Kuo (2):
thermal: Add thermal driver for Sunplus
dt-bindings: thermal: Add Sunplus schema
.../bindings/thermal/sunplus,sp7021-thermal.yaml | 43 +++++++
MAINTAINERS | 7 ++
drivers/thermal/Kconfig | 10 ++
drivers/thermal/Makefile | 1 +
drivers/thermal/sunplus_thermal.c | 130 +++++++++++++++++++++
5 files changed, 191 insertions(+)
create mode 100644 Documentation/devicetree/bindings/thermal/sunplus,sp7021-thermal.yaml
create mode 100644 drivers/thermal/sunplus_thermal.c
--
2.7.4
Add thermal driver for Sunplus.
Signed-off-by: Li-hao Kuo <[email protected]>
---
Changes in v11:
- Remove the remove function of the platform_driver
- Fix error reported-by: kernel test robot.
MAINTAINERS | 6 ++
drivers/thermal/Kconfig | 10 +++
drivers/thermal/Makefile | 1 +
drivers/thermal/sunplus_thermal.c | 130 ++++++++++++++++++++++++++++++++++++++
4 files changed, 147 insertions(+)
create mode 100644 drivers/thermal/sunplus_thermal.c
diff --git a/MAINTAINERS b/MAINTAINERS
index cf0f185..bf22c53 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19753,6 +19753,12 @@ S: Maintained
F: Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml
F: drivers/spi/spi-sunplus-sp7021.c
+SUNPLUS THERMAL DRIVER
+M: Li-hao Kuo <[email protected]>
+L: [email protected]
+S: Maintained
+F: drivers/thermal/sunplus_thermal.c
+
SUNPLUS UART DRIVER
M: Hammer Hsieh <[email protected]>
S: Maintained
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index e052dae..405b788 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -504,4 +504,14 @@ config KHADAS_MCU_FAN_THERMAL
If you say yes here you get support for the FAN controlled
by the Microcontroller found on the Khadas VIM boards.
+config SUNPLUS_THERMAL
+ tristate "Sunplus thermal drivers"
+ depends on SOC_SP7021 || COMPILE_TEST
+ help
+ This enable the Sunplus SP7021 thermal driver, which supports the primitive
+ temperature sensor embedded in Sunplus SP7021 SoC.
+
+ If you have a Sunplus SP7021 platform say Y here and enable this option
+ to have support for thermal management.
+
endif
diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index 2506c6c..4512193 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -61,3 +61,4 @@ obj-$(CONFIG_UNIPHIER_THERMAL) += uniphier_thermal.o
obj-$(CONFIG_AMLOGIC_THERMAL) += amlogic_thermal.o
obj-$(CONFIG_SPRD_THERMAL) += sprd_thermal.o
obj-$(CONFIG_KHADAS_MCU_FAN_THERMAL) += khadas_mcu_fan.o
+obj-$(CONFIG_SUNPLUS_THERMAL) += sunplus_thermal.o
\ No newline at end of file
diff --git a/drivers/thermal/sunplus_thermal.c b/drivers/thermal/sunplus_thermal.c
new file mode 100644
index 0000000..20ea7d9
--- /dev/null
+++ b/drivers/thermal/sunplus_thermal.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) Sunplus Inc.
+ * Author: Li-hao Kuo <[email protected]>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/thermal.h>
+
+#define ENABLE_THERMAL BIT(31)
+#define SP_THERMAL_MASK GENMASK(10, 0)
+
+#define TEMP_RATE 608
+#define TEMP_BASE 3500
+#define TEMP_OTP_BASE 1518
+
+#define SP_THERMAL_CTL0_REG 0x0000
+#define SP_THERMAL_STS0_REG 0x0030
+
+/* common data structures */
+struct sp_thermal_data {
+ struct thermal_zone_device *pcb_tz;
+ void __iomem *regs;
+ int *otp_temp0;
+};
+
+static int sunplus_get_otp_temp_coef(struct sp_thermal_data *sp_data, struct device *dev)
+{
+ struct nvmem_cell *cell;
+ ssize_t otp_l;
+
+ cell = nvmem_cell_get(dev, "calib");
+ if (IS_ERR(cell))
+ return PTR_ERR(cell);
+
+ sp_data->otp_temp0 = nvmem_cell_read(cell, &otp_l);
+ nvmem_cell_put(cell);
+
+ if (*sp_data->otp_temp0 == 0)
+ *sp_data->otp_temp0 = TEMP_OTP_BASE;
+
+ return 0;
+}
+
+/*
+ * There is a thermal sensor instance for Sunplus Soc
+ * T_CODE is the ADC of the thermal sensor
+ * T_CODE : 11 digits in total
+ * When remanufacturing, the 35 degree T_CODE will be read and stored in nvcell.
+ * otp_temp0 is the 35 degree T_CODE obtained from nvcell
+ * The function will get 35 degree T_CODE for thermal calibration.
+ * TEMP_RATE is the Sunplus thermal temperature slope.
+ */
+
+static int sp_thermal_get_sensor_temp(void *data, int *temp)
+{
+ struct sp_thermal_data *sp_data = data;
+ int t_code;
+
+ t_code = readl(sp_data->regs + SP_THERMAL_STS0_REG);
+ t_code = FIELD_GET(SP_THERMAL_MASK, t_code);
+ *temp = ((*sp_data->otp_temp0 - t_code) * 10000 / TEMP_RATE) + TEMP_BASE;
+ *temp *= 10;
+ return 0;
+}
+
+static const struct thermal_zone_of_device_ops sp_of_thermal_ops = {
+ .get_temp = sp_thermal_get_sensor_temp,
+};
+
+static int sunplus_thermal_probe(struct platform_device *pdev)
+{
+ struct sp_thermal_data *sp_data;
+ int ret;
+
+ sp_data = devm_kzalloc(&pdev->dev, sizeof(*sp_data), GFP_KERNEL);
+ if (!sp_data)
+ return -ENOMEM;
+
+ sp_data->regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(sp_data->regs)) {
+ dev_err(&pdev->dev, "resource get fail\n");
+ return PTR_ERR(sp_data->regs);
+ }
+
+ writel(ENABLE_THERMAL, sp_data->regs + SP_THERMAL_CTL0_REG);
+
+ platform_set_drvdata(pdev, sp_data);
+ ret = sunplus_get_otp_temp_coef(sp_data, &pdev->dev);
+ if (ret)
+ return ret;
+
+ sp_data->pcb_tz = devm_thermal_zone_of_sensor_register(&pdev->dev,
+ 0,
+ sp_data, &sp_of_thermal_ops);
+
+ if (IS_ERR(sp_data->pcb_tz)) {
+ ret = PTR_ERR(sp_data->pcb_tz);
+ dev_err(&pdev->dev, "failed to register tsensor: %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+static const struct of_device_id of_sunplus_thermal_ids[] = {
+ { .compatible = "sunplus,sp7021-thermal" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_sunplus_thermal_ids);
+
+static struct platform_driver sunplus_thermal_driver = {
+ .probe = sunplus_thermal_probe,
+ .driver = {
+ .name = "sunplus-thermal",
+ .of_match_table = of_sunplus_thermal_ids,
+ },
+};
+module_platform_driver(sunplus_thermal_driver);
+
+MODULE_AUTHOR("Li-hao Kuo <[email protected]>");
+MODULE_DESCRIPTION("Thermal driver for Sunplus SoC");
+MODULE_LICENSE("GPL");
--
2.7.4
Add bindings for Sunplus thermal driver
Signed-off-by: Li-hao Kuo <[email protected]>
---
Changes in v11:
- Remove the remove function of the platform_driver
- Fix error reported-by: kernel test robot.
.../bindings/thermal/sunplus,sp7021-thermal.yaml | 43 ++++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 44 insertions(+)
create mode 100644 Documentation/devicetree/bindings/thermal/sunplus,sp7021-thermal.yaml
diff --git a/Documentation/devicetree/bindings/thermal/sunplus,sp7021-thermal.yaml b/Documentation/devicetree/bindings/thermal/sunplus,sp7021-thermal.yaml
new file mode 100644
index 0000000..98b5674
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/sunplus,sp7021-thermal.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/sunplus,sp7021-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus Thermal controller
+
+maintainers:
+ - Li-hao Kuo <[email protected]>
+
+properties:
+ compatible:
+ enum:
+ - sunplus,sp7021-thermal
+
+ reg:
+ maxItems: 1
+
+ nvmem-cells:
+ maxItems: 1
+
+ nvmem-cell-names:
+ const: calib
+
+required:
+ - compatible
+ - reg
+ - nvmem-cells
+ - nvmem-cell-names
+
+additionalProperties: false
+
+examples:
+ - |
+ thermal@9c000280 {
+ compatible = "sunplus,sp7021-thermal";
+ reg = <0x9c000280 0xc>;
+ nvmem-cells = <&calib>;
+ nvmem-cell-names = "calib";
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index bf22c53..f41e625 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19757,6 +19757,7 @@ SUNPLUS THERMAL DRIVER
M: Li-hao Kuo <[email protected]>
L: [email protected]
S: Maintained
+F: Documentation/devicetree/bindings/thermal/sunplus,sp7021-thermal.yaml
F: drivers/thermal/sunplus_thermal.c
SUNPLUS UART DRIVER
--
2.7.4
Hi Li-hao,
I love your patch! Yet something to improve:
[auto build test ERROR on rafael-pm/thermal]
[also build test ERROR on krzk-dt/for-next linus/master v6.1-rc1 next-20221018]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Li-hao-Kuo/Add-thermal-control-driver-for-Sunplus-SoC/20221018-153345
base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git thermal
patch link: https://lore.kernel.org/r/076585e120b64832dcb81e39f3e59d719148816b.1665990345.git.lhjeff911%40gmail.com
patch subject: [PATCH v11 1/2] thermal: Add thermal driver for Sunplus
config: sh-allmodconfig
compiler: sh4-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/16210cee570585582144ab4a8ca2c219aef17189
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Li-hao-Kuo/Add-thermal-control-driver-for-Sunplus-SoC/20221018-153345
git checkout 16210cee570585582144ab4a8ca2c219aef17189
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/thermal/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
All error/warnings (new ones prefixed by >>):
>> drivers/thermal/sunplus_thermal.c:74:21: error: variable 'sp_of_thermal_ops' has initializer but incomplete type
74 | static const struct thermal_zone_of_device_ops sp_of_thermal_ops = {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/thermal/sunplus_thermal.c:75:10: error: 'const struct thermal_zone_of_device_ops' has no member named 'get_temp'
75 | .get_temp = sp_thermal_get_sensor_temp,
| ^~~~~~~~
>> drivers/thermal/sunplus_thermal.c:75:21: warning: excess elements in struct initializer
75 | .get_temp = sp_thermal_get_sensor_temp,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/thermal/sunplus_thermal.c:75:21: note: (near initialization for 'sp_of_thermal_ops')
drivers/thermal/sunplus_thermal.c: In function 'sunplus_thermal_probe':
>> drivers/thermal/sunplus_thermal.c:100:27: error: implicit declaration of function 'devm_thermal_zone_of_sensor_register'; did you mean 'devm_thermal_of_zone_register'? [-Werror=implicit-function-declaration]
100 | sp_data->pcb_tz = devm_thermal_zone_of_sensor_register(&pdev->dev,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| devm_thermal_of_zone_register
>> drivers/thermal/sunplus_thermal.c:100:25: warning: assignment to 'struct thermal_zone_device *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
100 | sp_data->pcb_tz = devm_thermal_zone_of_sensor_register(&pdev->dev,
| ^
drivers/thermal/sunplus_thermal.c: At top level:
>> drivers/thermal/sunplus_thermal.c:74:48: error: storage size of 'sp_of_thermal_ops' isn't known
74 | static const struct thermal_zone_of_device_ops sp_of_thermal_ops = {
| ^~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/sp_of_thermal_ops +74 drivers/thermal/sunplus_thermal.c
73
> 74 static const struct thermal_zone_of_device_ops sp_of_thermal_ops = {
> 75 .get_temp = sp_thermal_get_sensor_temp,
76 };
77
78 static int sunplus_thermal_probe(struct platform_device *pdev)
79 {
80 struct sp_thermal_data *sp_data;
81 int ret;
82
83 sp_data = devm_kzalloc(&pdev->dev, sizeof(*sp_data), GFP_KERNEL);
84 if (!sp_data)
85 return -ENOMEM;
86
87 sp_data->regs = devm_platform_ioremap_resource(pdev, 0);
88 if (IS_ERR(sp_data->regs)) {
89 dev_err(&pdev->dev, "resource get fail\n");
90 return PTR_ERR(sp_data->regs);
91 }
92
93 writel(ENABLE_THERMAL, sp_data->regs + SP_THERMAL_CTL0_REG);
94
95 platform_set_drvdata(pdev, sp_data);
96 ret = sunplus_get_otp_temp_coef(sp_data, &pdev->dev);
97 if (ret)
98 return ret;
99
> 100 sp_data->pcb_tz = devm_thermal_zone_of_sensor_register(&pdev->dev,
101 0,
102 sp_data, &sp_of_thermal_ops);
103
104 if (IS_ERR(sp_data->pcb_tz)) {
105 ret = PTR_ERR(sp_data->pcb_tz);
106 dev_err(&pdev->dev, "failed to register tsensor: %d\n", ret);
107 return ret;
108 }
109
110 return ret;
111 }
112
--
0-DAY CI Kernel Test Service
https://01.org/lkp
On Tue, 18 Oct 2022 15:32:52 +0800, Li-hao Kuo wrote:
> Add bindings for Sunplus thermal driver
>
> Signed-off-by: Li-hao Kuo <[email protected]>
> ---
> Changes in v11:
> - Remove the remove function of the platform_driver
> - Fix error reported-by: kernel test robot.
>
> .../bindings/thermal/sunplus,sp7021-thermal.yaml | 43 ++++++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 44 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/thermal/sunplus,sp7021-thermal.yaml
>
Reviewed-by: Rob Herring <[email protected]>
On 18/10/2022 09:32, Li-hao Kuo wrote:
> Add thermal driver for Sunplus.
>
> Signed-off-by: Li-hao Kuo <[email protected]>
> ---
> Changes in v11:
> - Remove the remove function of the platform_driver
> - Fix error reported-by: kernel test robot.
>
> MAINTAINERS | 6 ++
> drivers/thermal/Kconfig | 10 +++
> drivers/thermal/Makefile | 1 +
> drivers/thermal/sunplus_thermal.c | 130 ++++++++++++++++++++++++++++++++++++++
> 4 files changed, 147 insertions(+)
> create mode 100644 drivers/thermal/sunplus_thermal.c
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index cf0f185..bf22c53 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -19753,6 +19753,12 @@ S: Maintained
> F: Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml
> F: drivers/spi/spi-sunplus-sp7021.c
>
> +SUNPLUS THERMAL DRIVER
> +M: Li-hao Kuo <[email protected]>
> +L: [email protected]
> +S: Maintained
> +F: drivers/thermal/sunplus_thermal.c
> +
> SUNPLUS UART DRIVER
> M: Hammer Hsieh <[email protected]>
> S: Maintained
> diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
> index e052dae..405b788 100644
> --- a/drivers/thermal/Kconfig
> +++ b/drivers/thermal/Kconfig
> @@ -504,4 +504,14 @@ config KHADAS_MCU_FAN_THERMAL
> If you say yes here you get support for the FAN controlled
> by the Microcontroller found on the Khadas VIM boards.
>
> +config SUNPLUS_THERMAL
> + tristate "Sunplus thermal drivers"
> + depends on SOC_SP7021 || COMPILE_TEST
> + help
> + This enable the Sunplus SP7021 thermal driver, which supports the primitive
> + temperature sensor embedded in Sunplus SP7021 SoC.
> +
> + If you have a Sunplus SP7021 platform say Y here and enable this option
> + to have support for thermal management.
> +
> endif
> diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
> index 2506c6c..4512193 100644
> --- a/drivers/thermal/Makefile
> +++ b/drivers/thermal/Makefile
> @@ -61,3 +61,4 @@ obj-$(CONFIG_UNIPHIER_THERMAL) += uniphier_thermal.o
> obj-$(CONFIG_AMLOGIC_THERMAL) += amlogic_thermal.o
> obj-$(CONFIG_SPRD_THERMAL) += sprd_thermal.o
> obj-$(CONFIG_KHADAS_MCU_FAN_THERMAL) += khadas_mcu_fan.o
> +obj-$(CONFIG_SUNPLUS_THERMAL) += sunplus_thermal.o
> \ No newline at end of file
> diff --git a/drivers/thermal/sunplus_thermal.c b/drivers/thermal/sunplus_thermal.c
> new file mode 100644
> index 0000000..20ea7d9
> --- /dev/null
> +++ b/drivers/thermal/sunplus_thermal.c
> @@ -0,0 +1,130 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) Sunplus Inc.
> + * Author: Li-hao Kuo <[email protected]>
> + */
> +
> +#include <linux/bitfield.h>
> +#include <linux/clk.h>
> +#include <linux/delay.h>
> +#include <linux/io.h>
> +#include <linux/module.h>
> +#include <linux/nvmem-consumer.h>
> +#include <linux/platform_device.h>
> +#include <linux/reset.h>
> +#include <linux/thermal.h>
> +
> +#define ENABLE_THERMAL BIT(31)
> +#define SP_THERMAL_MASK GENMASK(10, 0)
> +
> +#define TEMP_RATE 608
> +#define TEMP_BASE 3500
> +#define TEMP_OTP_BASE 1518
> +
> +#define SP_THERMAL_CTL0_REG 0x0000
> +#define SP_THERMAL_STS0_REG 0x0030
> +
> +/* common data structures */
> +struct sp_thermal_data {
> + struct thermal_zone_device *pcb_tz;
> + void __iomem *regs;
> + int *otp_temp0;
> +};
> +
> +static int sunplus_get_otp_temp_coef(struct sp_thermal_data *sp_data, struct device *dev)
> +{
> + struct nvmem_cell *cell;
> + ssize_t otp_l;
> +
> + cell = nvmem_cell_get(dev, "calib");
> + if (IS_ERR(cell))
> + return PTR_ERR(cell);
> +
> + sp_data->otp_temp0 = nvmem_cell_read(cell, &otp_l);
> + nvmem_cell_put(cell);
> +
> + if (*sp_data->otp_temp0 == 0)
> + *sp_data->otp_temp0 = TEMP_OTP_BASE;
> +
> + return 0;
> +}
> +
> +/*
> + * There is a thermal sensor instance for Sunplus Soc
> + * T_CODE is the ADC of the thermal sensor
> + * T_CODE : 11 digits in total
> + * When remanufacturing, the 35 degree T_CODE will be read and stored in nvcell.
> + * otp_temp0 is the 35 degree T_CODE obtained from nvcell
> + * The function will get 35 degree T_CODE for thermal calibration.
> + * TEMP_RATE is the Sunplus thermal temperature slope.
> + */
> +
> +static int sp_thermal_get_sensor_temp(void *data, int *temp)
> +{
> + struct sp_thermal_data *sp_data = data;
> + int t_code;
> +
> + t_code = readl(sp_data->regs + SP_THERMAL_STS0_REG);
> + t_code = FIELD_GET(SP_THERMAL_MASK, t_code);
> + *temp = ((*sp_data->otp_temp0 - t_code) * 10000 / TEMP_RATE) + TEMP_BASE;
> + *temp *= 10;
> + return 0;
> +}
> +
> +static const struct thermal_zone_of_device_ops sp_of_thermal_ops = {
struct thermal_zone_device_ops ...
https://lore.kernel.org/r/[email protected]
--
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Thank you I will fix it in next next submission
> -----Original Message-----
> From: Daniel Lezcano <[email protected]>
> Sent: Sunday, October 23, 2022 12:36 AM
> To: Li-hao Kuo <[email protected]>; [email protected]; [email protected]; [email protected];
> [email protected]; [email protected]; [email protected]; [email protected];
> [email protected]
> Cc: Lh Kuo 郭力豪 <[email protected]>
> Subject: Re: [PATCH v11 1/2] thermal: Add thermal driver for Sunplus
>
> On 18/10/2022 09:32, Li-hao Kuo wrote:
> > Add thermal driver for Sunplus.
> >
> > Signed-off-by: Li-hao Kuo <[email protected]>
> > ---
> > Changes in v11:
> > - Remove the remove function of the platform_driver
> > - Fix error reported-by: kernel test robot.
> >
> > MAINTAINERS | 6 ++
> > drivers/thermal/Kconfig | 10 +++
> > drivers/thermal/Makefile | 1 +
> > drivers/thermal/sunplus_thermal.c | 130 ++++++++++++++++++++++++++++++++++++++
> > 4 files changed, 147 insertions(+)
> > create mode 100644 drivers/thermal/sunplus_thermal.c
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS index cf0f185..bf22c53 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -19753,6 +19753,12 @@ S: Maintained
> > F: Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml
> > F: drivers/spi/spi-sunplus-sp7021.c
> >
> > +SUNPLUS THERMAL DRIVER
> > +M: Li-hao Kuo <[email protected]>
> > +L: [email protected]
> > +S: Maintained
> > +F: drivers/thermal/sunplus_thermal.c
> > +
> > SUNPLUS UART DRIVER
> > M: Hammer Hsieh <[email protected]>
> > S: Maintained
> > diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index
> > e052dae..405b788 100644
> > --- a/drivers/thermal/Kconfig
> > +++ b/drivers/thermal/Kconfig
> > @@ -504,4 +504,14 @@ config KHADAS_MCU_FAN_THERMAL
> > If you say yes here you get support for the FAN controlled
> > by the Microcontroller found on the Khadas VIM boards.
> >
> > +config SUNPLUS_THERMAL
> > + tristate "Sunplus thermal drivers"
> > + depends on SOC_SP7021 || COMPILE_TEST
> > + help
> > + This enable the Sunplus SP7021 thermal driver, which supports the primitive
> > + temperature sensor embedded in Sunplus SP7021 SoC.
> > +
> > + If you have a Sunplus SP7021 platform say Y here and enable this option
> > + to have support for thermal management.
> > +
> > endif
> > diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index
> > 2506c6c..4512193 100644
> > --- a/drivers/thermal/Makefile
> > +++ b/drivers/thermal/Makefile
> > @@ -61,3 +61,4 @@ obj-$(CONFIG_UNIPHIER_THERMAL) += uniphier_thermal.o
> > obj-$(CONFIG_AMLOGIC_THERMAL) += amlogic_thermal.o
> > obj-$(CONFIG_SPRD_THERMAL) += sprd_thermal.o
> > obj-$(CONFIG_KHADAS_MCU_FAN_THERMAL) += khadas_mcu_fan.o
> > +obj-$(CONFIG_SUNPLUS_THERMAL) += sunplus_thermal.o
> > \ No newline at end of file
> > diff --git a/drivers/thermal/sunplus_thermal.c
> > b/drivers/thermal/sunplus_thermal.c
> > new file mode 100644
> > index 0000000..20ea7d9
> > --- /dev/null
> > +++ b/drivers/thermal/sunplus_thermal.c
> > @@ -0,0 +1,130 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Copyright (c) Sunplus Inc.
> > + * Author: Li-hao Kuo <[email protected]> */
> > +
> > +#include <linux/bitfield.h>
> > +#include <linux/clk.h>
> > +#include <linux/delay.h>
> > +#include <linux/io.h>
> > +#include <linux/module.h>
> > +#include <linux/nvmem-consumer.h>
> > +#include <linux/platform_device.h>
> > +#include <linux/reset.h>
> > +#include <linux/thermal.h>
> > +
> > +#define ENABLE_THERMAL BIT(31)
> > +#define SP_THERMAL_MASK GENMASK(10, 0)
> > +
> > +#define TEMP_RATE 608
> > +#define TEMP_BASE 3500
> > +#define TEMP_OTP_BASE 1518
> > +
> > +#define SP_THERMAL_CTL0_REG 0x0000
> > +#define SP_THERMAL_STS0_REG 0x0030
> > +
> > +/* common data structures */
> > +struct sp_thermal_data {
> > + struct thermal_zone_device *pcb_tz;
> > + void __iomem *regs;
> > + int *otp_temp0;
> > +};
> > +
> > +static int sunplus_get_otp_temp_coef(struct sp_thermal_data *sp_data,
> > +struct device *dev) {
> > + struct nvmem_cell *cell;
> > + ssize_t otp_l;
> > +
> > + cell = nvmem_cell_get(dev, "calib");
> > + if (IS_ERR(cell))
> > + return PTR_ERR(cell);
> > +
> > + sp_data->otp_temp0 = nvmem_cell_read(cell, &otp_l);
> > + nvmem_cell_put(cell);
> > +
> > + if (*sp_data->otp_temp0 == 0)
> > + *sp_data->otp_temp0 = TEMP_OTP_BASE;
> > +
> > + return 0;
> > +}
> > +
> > +/*
> > + * There is a thermal sensor instance for Sunplus Soc
> > + * T_CODE is the ADC of the thermal sensor
> > + * T_CODE : 11 digits in total
> > + * When remanufacturing, the 35 degree T_CODE will be read and stored in nvcell.
> > + * otp_temp0 is the 35 degree T_CODE obtained from nvcell
> > + * The function will get 35 degree T_CODE for thermal calibration.
> > + * TEMP_RATE is the Sunplus thermal temperature slope.
> > + */
> > +
> > +static int sp_thermal_get_sensor_temp(void *data, int *temp) {
> > + struct sp_thermal_data *sp_data = data;
> > + int t_code;
> > +
> > + t_code = readl(sp_data->regs + SP_THERMAL_STS0_REG);
> > + t_code = FIELD_GET(SP_THERMAL_MASK, t_code);
> > + *temp = ((*sp_data->otp_temp0 - t_code) * 10000 / TEMP_RATE) + TEMP_BASE;
> > + *temp *= 10;
> > + return 0;
> > +}
> > +
> > +static const struct thermal_zone_of_device_ops sp_of_thermal_ops = {
>
> struct thermal_zone_device_ops ...
>
>
> https://lore.kernel.org/r/[email protected]
>
>
>
>
>
> --
> <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
>
> Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg>
> Twitter | <http://www.linaro.org/linaro-blog/> Blog
On 17/11/2022 10:04, Li-hao Kuo wrote:
> Add bindings for Sunplus thermal driver
>
> Signed-off-by: Li-hao Kuo <[email protected]>
> ---
> Changes in v12:
> - no change.
> - Reviewed by Mr. Rob Herring <[email protected]>
>
This is a friendly reminder during the review process.
It looks like you received a tag and forgot to add it.
If you do not know the process, here is a short explanation:
Please add Acked-by/Reviewed-by/Tested-by tags when posting new
versions. However, there's no need to repost patches *only* to add the
tags. The upstream maintainer will do that for acks received on the
version they apply.
https://elixir.bootlin.com/linux/v5.17/source/Documentation/process/submitting-patches.rst#L540
If a tag was not added on purpose, please state why and what changed.
Best regards,
Krzysztof
Hi Li-hao,
I love your patch! Yet something to improve:
[auto build test ERROR on rafael-pm/thermal]
[also build test ERROR on krzk-dt/for-next linus/master v6.1-rc8 next-20221208]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Li-hao-Kuo/Add-thermal-control-driver-for-Sunplus-SoC/20221207-135102
base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git thermal
patch link: https://lore.kernel.org/r/076585e120b64832dcb81e39f3e59d719148816b.1665990345.git.lhjeff911%40gmail.com
patch subject: [PATCH v13 1/2] thermal: Add thermal driver for Sunplus
config: powerpc-allyesconfig
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6e4cea55f0d1104408b26ac574566a0e4de48036)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# https://github.com/intel-lab-lkp/linux/commit/0a55de700cd954776347017ffe2fbad2c7446ec9
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Li-hao-Kuo/Add-thermal-control-driver-for-Sunplus-SoC/20221207-135102
git checkout 0a55de700cd954776347017ffe2fbad2c7446ec9
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
All errors (new ones prefixed by >>):
>> drivers/thermal/sunplus_thermal.c:75:14: error: incompatible function pointer types initializing 'int (*)(struct thermal_zone_device *, int *)' with an expression of type 'int (void *, int *)' [-Wincompatible-function-pointer-types]
.get_temp = sp_thermal_get_sensor_temp,
^~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
vim +75 drivers/thermal/sunplus_thermal.c
73
74 static const struct thermal_zone_device_ops sp_of_thermal_ops = {
> 75 .get_temp = sp_thermal_get_sensor_temp,
76 };
77
--
0-DAY CI Kernel Test Service
https://01.org/lkp
On 15/12/2022 09:23, Li-hao Kuo wrote:
> Add bindings for Sunplus thermal driver
>
> Signed-off-by: Li-hao Kuo <[email protected]>
> ---
> Changes in v12:
> - no change.
>
> Changes in v13:
> - no change.
You got comment which you ignored. Stop sending the same while ignoring
feedback.
Best regards,
Krzysztof