* [PATCH V2 00/11] Add T210 support in Tegra soctherm @ 2016-01-15 10:24 ` Wei Ni 0 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni This patchset adds following functions for tegra_soctherm driver: 1. add T210 support. 2. export debugfs to show some registers. 3. add thermtrip funciton. 4. add suspend/resume function. The V1 serial is in http://www.gossamer-threads.com/lists/linux/kernel/2343518 Main changes from V1: 1. Use the new type to handl different Tegra chips in one driver, which suggested by Thierry. 2. Changes per Thieery's other comments. Wei Ni (11): thermal: tegra: move tegra thermal files into tegra directory thermal: tegra: combine sensor group-related data thermal: tegra: get rid of PDIV/HOTSPOT hack thermal: tegra: split tegra_soctherm driver thermal: tegra: add T210-specific SOC_THERM driver thermal: tegra: add a debugfs to show registers of: Add bindings of hw-trips for soctherm thermal: tegra: add thermtrip function thermal: tegra: add PM support arm64: tegra: add soctherm node for Tegra210 ARM: tegra: set hw trips for Tegra124 .../devicetree/bindings/thermal/tegra-soctherm.txt | 24 + arch/arm/boot/dts/tegra124.dtsi | 9 + arch/arm64/boot/dts/nvidia/tegra210.dtsi | 53 ++ drivers/thermal/Kconfig | 12 +- drivers/thermal/Makefile | 2 +- drivers/thermal/tegra/Kconfig | 13 + drivers/thermal/tegra/Makefile | 5 + drivers/thermal/tegra/soctherm-fuse.c | 155 ++++ drivers/thermal/tegra/soctherm.c | 782 +++++++++++++++++++++ drivers/thermal/tegra/soctherm.h | 125 ++++ drivers/thermal/tegra/tegra124-soctherm.c | 207 ++++++ drivers/thermal/tegra/tegra210-soctherm.c | 208 ++++++ drivers/thermal/tegra_soctherm.c | 476 ------------- include/dt-bindings/thermal/tegra124-soctherm.h | 1 + 14 files changed, 1585 insertions(+), 487 deletions(-) create mode 100644 drivers/thermal/tegra/Kconfig create mode 100644 drivers/thermal/tegra/Makefile create mode 100644 drivers/thermal/tegra/soctherm-fuse.c create mode 100644 drivers/thermal/tegra/soctherm.c create mode 100644 drivers/thermal/tegra/soctherm.h create mode 100644 drivers/thermal/tegra/tegra124-soctherm.c create mode 100644 drivers/thermal/tegra/tegra210-soctherm.c delete mode 100644 drivers/thermal/tegra_soctherm.c -- 1.9.1 ^ permalink raw reply [flat|nested] 14+ messages in thread
* [PATCH V2 00/11] Add T210 support in Tegra soctherm @ 2016-01-15 10:24 ` Wei Ni 0 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni This patchset adds following functions for tegra_soctherm driver: 1. add T210 support. 2. export debugfs to show some registers. 3. add thermtrip funciton. 4. add suspend/resume function. The V1 serial is in http://www.gossamer-threads.com/lists/linux/kernel/2343518 Main changes from V1: 1. Use the new type to handl different Tegra chips in one driver, which suggested by Thierry. 2. Changes per Thieery's other comments. Wei Ni (11): thermal: tegra: move tegra thermal files into tegra directory thermal: tegra: combine sensor group-related data thermal: tegra: get rid of PDIV/HOTSPOT hack thermal: tegra: split tegra_soctherm driver thermal: tegra: add T210-specific SOC_THERM driver thermal: tegra: add a debugfs to show registers of: Add bindings of hw-trips for soctherm thermal: tegra: add thermtrip function thermal: tegra: add PM support arm64: tegra: add soctherm node for Tegra210 ARM: tegra: set hw trips for Tegra124 .../devicetree/bindings/thermal/tegra-soctherm.txt | 24 + arch/arm/boot/dts/tegra124.dtsi | 9 + arch/arm64/boot/dts/nvidia/tegra210.dtsi | 53 ++ drivers/thermal/Kconfig | 12 +- drivers/thermal/Makefile | 2 +- drivers/thermal/tegra/Kconfig | 13 + drivers/thermal/tegra/Makefile | 5 + drivers/thermal/tegra/soctherm-fuse.c | 155 ++++ drivers/thermal/tegra/soctherm.c | 782 +++++++++++++++++++++ drivers/thermal/tegra/soctherm.h | 125 ++++ drivers/thermal/tegra/tegra124-soctherm.c | 207 ++++++ drivers/thermal/tegra/tegra210-soctherm.c | 208 ++++++ drivers/thermal/tegra_soctherm.c | 476 ------------- include/dt-bindings/thermal/tegra124-soctherm.h | 1 + 14 files changed, 1585 insertions(+), 487 deletions(-) create mode 100644 drivers/thermal/tegra/Kconfig create mode 100644 drivers/thermal/tegra/Makefile create mode 100644 drivers/thermal/tegra/soctherm-fuse.c create mode 100644 drivers/thermal/tegra/soctherm.c create mode 100644 drivers/thermal/tegra/soctherm.h create mode 100644 drivers/thermal/tegra/tegra124-soctherm.c create mode 100644 drivers/thermal/tegra/tegra210-soctherm.c delete mode 100644 drivers/thermal/tegra_soctherm.c -- 1.9.1 ^ permalink raw reply [flat|nested] 14+ messages in thread
* [PATCH V2 01/11] thermal: tegra: move tegra thermal files into tegra directory 2016-01-15 10:24 ` Wei Ni @ 2016-01-15 10:24 ` Wei Ni -1 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni Move Tegra soctherm driver to tegra directory, it's easy to maintain and add more new function support for Tegra platforms. This will also help to split soctherm driver into common parts and chip specific data related parts. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/Kconfig | 12 ++---------- drivers/thermal/Makefile | 2 +- drivers/thermal/tegra/Kconfig | 13 +++++++++++++ drivers/thermal/tegra/Makefile | 1 + .../thermal/{tegra_soctherm.c => tegra/tegra-soctherm.c} | 0 5 files changed, 17 insertions(+), 11 deletions(-) create mode 100644 drivers/thermal/tegra/Kconfig create mode 100644 drivers/thermal/tegra/Makefile rename drivers/thermal/{tegra_soctherm.c => tegra/tegra-soctherm.c} (100%) diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index c463c89b90ef..e0577b15cbff 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -254,16 +254,6 @@ config ARMADA_THERMAL Enable this option if you want to have support for thermal management controller present in Armada 370 and Armada XP SoC. -config TEGRA_SOCTHERM - tristate "Tegra SOCTHERM thermal management" - depends on ARCH_TEGRA - help - Enable this option for integrated thermal management support on NVIDIA - Tegra124 systems-on-chip. The driver supports four thermal zones - (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal - zones to manage temperatures. This option is also required for the - emergency thermal reset (thermtrip) feature to function. - config DB8500_CPUFREQ_COOLING tristate "DB8500 cpufreq cooling" depends on ARCH_U8500 @@ -380,6 +370,8 @@ depends on ARCH_STI && OF source "drivers/thermal/st/Kconfig" endmenu +source "drivers/thermal/tegra/Kconfig" + config QCOM_SPMI_TEMP_ALARM tristate "Qualcomm SPMI PMIC Temperature Alarm" depends on OF && (SPMI || COMPILE_TEST) && IIO diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index cfae6a654793..119e25cdcc66 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -46,5 +46,5 @@ obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal/ obj-$(CONFIG_INT340X_THERMAL) += int340x_thermal/ obj-$(CONFIG_INTEL_PCH_THERMAL) += intel_pch_thermal.o obj-$(CONFIG_ST_THERMAL) += st/ -obj-$(CONFIG_TEGRA_SOCTHERM) += tegra_soctherm.o +obj-$(CONFIG_TEGRA_SOCTHERM) += tegra/ obj-$(CONFIG_HISI_THERMAL) += hisi_thermal.o diff --git a/drivers/thermal/tegra/Kconfig b/drivers/thermal/tegra/Kconfig new file mode 100644 index 000000000000..0b719d8b629b --- /dev/null +++ b/drivers/thermal/tegra/Kconfig @@ -0,0 +1,13 @@ +menu "NVIDIA Tegra thermal drivers" + +config TEGRA_SOCTHERM + tristate "Tegra SOCTHERM thermal management" + depends on ARCH_TEGRA + help + Enable this option for integrated thermal management support on NVIDIA + Tegra124 systems-on-chip. The driver supports four thermal zones + (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal + zones to manage temperatures. This option is also required for the + emergency thermal reset (thermtrip) feature to function. + +endmenu diff --git a/drivers/thermal/tegra/Makefile b/drivers/thermal/tegra/Makefile new file mode 100644 index 000000000000..2085d5e86495 --- /dev/null +++ b/drivers/thermal/tegra/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_TEGRA_SOCTHERM) += tegra_soctherm.o diff --git a/drivers/thermal/tegra_soctherm.c b/drivers/thermal/tegra/tegra-soctherm.c similarity index 100% rename from drivers/thermal/tegra_soctherm.c rename to drivers/thermal/tegra/tegra-soctherm.c -- 1.9.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V2 01/11] thermal: tegra: move tegra thermal files into tegra directory @ 2016-01-15 10:24 ` Wei Ni 0 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni Move Tegra soctherm driver to tegra directory, it's easy to maintain and add more new function support for Tegra platforms. This will also help to split soctherm driver into common parts and chip specific data related parts. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/Kconfig | 12 ++---------- drivers/thermal/Makefile | 2 +- drivers/thermal/tegra/Kconfig | 13 +++++++++++++ drivers/thermal/tegra/Makefile | 1 + .../thermal/{tegra_soctherm.c => tegra/tegra-soctherm.c} | 0 5 files changed, 17 insertions(+), 11 deletions(-) create mode 100644 drivers/thermal/tegra/Kconfig create mode 100644 drivers/thermal/tegra/Makefile rename drivers/thermal/{tegra_soctherm.c => tegra/tegra-soctherm.c} (100%) diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index c463c89b90ef..e0577b15cbff 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -254,16 +254,6 @@ config ARMADA_THERMAL Enable this option if you want to have support for thermal management controller present in Armada 370 and Armada XP SoC. -config TEGRA_SOCTHERM - tristate "Tegra SOCTHERM thermal management" - depends on ARCH_TEGRA - help - Enable this option for integrated thermal management support on NVIDIA - Tegra124 systems-on-chip. The driver supports four thermal zones - (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal - zones to manage temperatures. This option is also required for the - emergency thermal reset (thermtrip) feature to function. - config DB8500_CPUFREQ_COOLING tristate "DB8500 cpufreq cooling" depends on ARCH_U8500 @@ -380,6 +370,8 @@ depends on ARCH_STI && OF source "drivers/thermal/st/Kconfig" endmenu +source "drivers/thermal/tegra/Kconfig" + config QCOM_SPMI_TEMP_ALARM tristate "Qualcomm SPMI PMIC Temperature Alarm" depends on OF && (SPMI || COMPILE_TEST) && IIO diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index cfae6a654793..119e25cdcc66 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -46,5 +46,5 @@ obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal/ obj-$(CONFIG_INT340X_THERMAL) += int340x_thermal/ obj-$(CONFIG_INTEL_PCH_THERMAL) += intel_pch_thermal.o obj-$(CONFIG_ST_THERMAL) += st/ -obj-$(CONFIG_TEGRA_SOCTHERM) += tegra_soctherm.o +obj-$(CONFIG_TEGRA_SOCTHERM) += tegra/ obj-$(CONFIG_HISI_THERMAL) += hisi_thermal.o diff --git a/drivers/thermal/tegra/Kconfig b/drivers/thermal/tegra/Kconfig new file mode 100644 index 000000000000..0b719d8b629b --- /dev/null +++ b/drivers/thermal/tegra/Kconfig @@ -0,0 +1,13 @@ +menu "NVIDIA Tegra thermal drivers" + +config TEGRA_SOCTHERM + tristate "Tegra SOCTHERM thermal management" + depends on ARCH_TEGRA + help + Enable this option for integrated thermal management support on NVIDIA + Tegra124 systems-on-chip. The driver supports four thermal zones + (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal + zones to manage temperatures. This option is also required for the + emergency thermal reset (thermtrip) feature to function. + +endmenu diff --git a/drivers/thermal/tegra/Makefile b/drivers/thermal/tegra/Makefile new file mode 100644 index 000000000000..2085d5e86495 --- /dev/null +++ b/drivers/thermal/tegra/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_TEGRA_SOCTHERM) += tegra_soctherm.o diff --git a/drivers/thermal/tegra_soctherm.c b/drivers/thermal/tegra/tegra-soctherm.c similarity index 100% rename from drivers/thermal/tegra_soctherm.c rename to drivers/thermal/tegra/tegra-soctherm.c -- 1.9.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
[parent not found: <1452853499-5115-2-git-send-email-wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>]
* Re: [PATCH V2 01/11] thermal: tegra: move tegra thermal files into tegra directory 2016-01-15 10:24 ` Wei Ni @ 2016-01-15 15:53 ` kbuild test robot -1 siblings, 0 replies; 14+ messages in thread From: kbuild test robot @ 2016-01-15 15:53 UTC (permalink / raw) Cc: kbuild-all-JC7UmRfGjtg, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, rui.zhang-ral2JQCrhuEAvxtiuMwx3w, MLongnecker-DDmLM1+adcrQT0dZR+AlfA, swarren-3lzwWm7+Weoh9ZMKESR00Q, mikko.perttunen-/1wQRMveznE, linux-tegra-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA, Wei Ni [-- Attachment #1: Type: text/plain, Size: 1247 bytes --] Hi Wei, [auto build test ERROR on tegra/for-next] [also build test ERROR on v4.4 next-20160115] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Wei-Ni/Add-T210-support-in-Tegra-soctherm/20160115-183136 base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux for-next config: arm-allmodconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm Note: the linux-review/Wei-Ni/Add-T210-support-in-Tegra-soctherm/20160115-183136 HEAD 7979051d7b390098c1f3ada1130b03a44cfe1268 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): >> make[4]: *** No rule to make target 'drivers/thermal/tegra/tegra_soctherm.c', needed by 'drivers/thermal/tegra/tegra_soctherm.o'. make[4]: Target '__build' not remade because of errors. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation [-- Attachment #2: .config.gz --] [-- Type: application/octet-stream, Size: 54599 bytes --] ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [PATCH V2 01/11] thermal: tegra: move tegra thermal files into tegra directory @ 2016-01-15 15:53 ` kbuild test robot 0 siblings, 0 replies; 14+ messages in thread From: kbuild test robot @ 2016-01-15 15:53 UTC (permalink / raw) To: Wei Ni Cc: kbuild-all, thierry.reding, rui.zhang, MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni [-- Attachment #1: Type: text/plain, Size: 1247 bytes --] Hi Wei, [auto build test ERROR on tegra/for-next] [also build test ERROR on v4.4 next-20160115] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Wei-Ni/Add-T210-support-in-Tegra-soctherm/20160115-183136 base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux for-next config: arm-allmodconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm Note: the linux-review/Wei-Ni/Add-T210-support-in-Tegra-soctherm/20160115-183136 HEAD 7979051d7b390098c1f3ada1130b03a44cfe1268 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): >> make[4]: *** No rule to make target 'drivers/thermal/tegra/tegra_soctherm.c', needed by 'drivers/thermal/tegra/tegra_soctherm.o'. make[4]: Target '__build' not remade because of errors. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation [-- Attachment #2: .config.gz --] [-- Type: application/octet-stream, Size: 54599 bytes --] ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [PATCH V2 01/11] thermal: tegra: move tegra thermal files into tegra directory 2016-01-15 10:24 ` Wei Ni @ 2016-01-15 19:33 ` kbuild test robot -1 siblings, 0 replies; 14+ messages in thread From: kbuild test robot @ 2016-01-15 19:33 UTC (permalink / raw) Cc: kbuild-all-JC7UmRfGjtg, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, rui.zhang-ral2JQCrhuEAvxtiuMwx3w, MLongnecker-DDmLM1+adcrQT0dZR+AlfA, swarren-3lzwWm7+Weoh9ZMKESR00Q, mikko.perttunen-/1wQRMveznE, linux-tegra-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA, Wei Ni [-- Attachment #1: Type: text/plain, Size: 1245 bytes --] Hi Wei, [auto build test ERROR on tegra/for-next] [also build test ERROR on v4.4 next-20160115] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Wei-Ni/Add-T210-support-in-Tegra-soctherm/20160115-183136 base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux for-next config: arm64-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm64 Note: the linux-review/Wei-Ni/Add-T210-support-in-Tegra-soctherm/20160115-183136 HEAD 7979051d7b390098c1f3ada1130b03a44cfe1268 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): >> make[4]: *** No rule to make target 'drivers/thermal/tegra/tegra_soctherm.o', needed by 'drivers/thermal/tegra/built-in.o'. make[4]: Target '__build' not remade because of errors. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation [-- Attachment #2: .config.gz --] [-- Type: application/octet-stream, Size: 46966 bytes --] ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [PATCH V2 01/11] thermal: tegra: move tegra thermal files into tegra directory @ 2016-01-15 19:33 ` kbuild test robot 0 siblings, 0 replies; 14+ messages in thread From: kbuild test robot @ 2016-01-15 19:33 UTC (permalink / raw) To: Wei Ni Cc: kbuild-all, thierry.reding, rui.zhang, MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni [-- Attachment #1: Type: text/plain, Size: 1245 bytes --] Hi Wei, [auto build test ERROR on tegra/for-next] [also build test ERROR on v4.4 next-20160115] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Wei-Ni/Add-T210-support-in-Tegra-soctherm/20160115-183136 base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux for-next config: arm64-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm64 Note: the linux-review/Wei-Ni/Add-T210-support-in-Tegra-soctherm/20160115-183136 HEAD 7979051d7b390098c1f3ada1130b03a44cfe1268 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): >> make[4]: *** No rule to make target 'drivers/thermal/tegra/tegra_soctherm.o', needed by 'drivers/thermal/tegra/built-in.o'. make[4]: Target '__build' not remade because of errors. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation [-- Attachment #2: .config.gz --] [-- Type: application/octet-stream, Size: 46966 bytes --] ^ permalink raw reply [flat|nested] 14+ messages in thread
[parent not found: <1452853499-5115-1-git-send-email-wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>]
* [PATCH V2 02/11] thermal: tegra: combine sensor group-related data 2016-01-15 10:24 ` Wei Ni @ 2016-01-15 10:24 ` Wei Ni -1 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding-Re5JQEeQqe8AvxtiuMwx3w, rui.zhang-ral2JQCrhuEAvxtiuMwx3w Cc: MLongnecker-DDmLM1+adcrQT0dZR+AlfA, swarren-3lzwWm7+Weoh9ZMKESR00Q, mikko.perttunen-/1wQRMveznE, linux-tegra-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA, Wei Ni Combine sensor group-related data structures into struct tegra_tsensor_group. This provides a single location for sensor group data storage. More sensor group data will be added in subsequent patches. Signed-off-by: Wei Ni <wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> --- drivers/thermal/tegra/tegra-soctherm.c | 147 +++++++++++++++++++----- include/dt-bindings/thermal/tegra124-soctherm.h | 1 + 2 files changed, 121 insertions(+), 27 deletions(-) diff --git a/drivers/thermal/tegra/tegra-soctherm.c b/drivers/thermal/tegra/tegra-soctherm.c index 74ea5765938b..6ef3a7dec1d8 100644 --- a/drivers/thermal/tegra/tegra-soctherm.c +++ b/drivers/thermal/tegra/tegra-soctherm.c @@ -28,6 +28,7 @@ #include <linux/thermal.h> #include <soc/tegra/fuse.h> +#include <dt-bindings/thermal/tegra124-soctherm.h> #define SENSOR_CONFIG0 0 #define SENSOR_CONFIG0_STOP BIT(0) @@ -48,12 +49,24 @@ #define SENSOR_PDIV 0x1c0 #define SENSOR_PDIV_T124 0x8888 +#define SENSOR_PDIV_CPU_MASK (0xf << 12) +#define SENSOR_PDIV_GPU_MASK (0xf << 8) +#define SENSOR_PDIV_MEM_MASK (0xf << 4) +#define SENSOR_PDIV_PLLX_MASK (0xf << 0) + #define SENSOR_HOTSPOT_OFF 0x1c4 #define SENSOR_HOTSPOT_OFF_T124 0x00060600 +#define SENSOR_HOTSPOT_CPU_MASK (0xff << 16) +#define SENSOR_HOTSPOT_GPU_MASK (0xff << 8) +#define SENSOR_HOTSPOT_MEM_MASK (0xff << 0) + #define SENSOR_TEMP1 0x1c8 +#define SENSOR_TEMP1_CPU_TEMP_MASK (0xffff << 16) +#define SENSOR_TEMP1_GPU_TEMP_MASK 0xffff #define SENSOR_TEMP2 0x1cc +#define SENSOR_TEMP2_MEM_TEMP_MASK (0xffff << 16) +#define SENSOR_TEMP2_PLLX_TEMP_MASK 0xffff -#define SENSOR_TEMP_MASK 0xffff #define READBACK_VALUE_MASK 0xff00 #define READBACK_VALUE_SHIFT 8 #define READBACK_ADD_HALF BIT(7) @@ -77,8 +90,36 @@ #define NOMINAL_CALIB_FT_T124 105 #define NOMINAL_CALIB_CP_T124 25 +/* get val from register(r) mask bits(m) */ +#define REG_GET_MASK(r, m) (((r) & (m)) >> (ffs(m) - 1)) +/* set val(v) to mask bits(m) of register(r) */ +#define REG_SET_MASK(r, m, v) (((r) & ~(m)) | \ + (((v) & (m >> (ffs(m) - 1))) << (ffs(m) - 1))) + +/** + * struct tegra_tsensor_group - SOC_THERM sensor group data + * @name: short name of the temperature sensor group + * @id: numeric ID of the temperature sensor group + * @sensor_temp_offset: offset of the SENSOR_TEMP* register + * @sensor_temp_mask: bit mask for this sensor group in SENSOR_TEMP* register + * @pdiv: the sensor count post-divider to use during runtime + * @pdiv_ate: the sensor count post-divider used during automated test + * @pdiv_mask: register bitfield mask for the PDIV field for this sensor + * @pllx_hotspot_diff: hotspot offset from the PLLX sensor, must be 0 for + PLLX sensor group + * @pllx_hotspot_mask: register bitfield mask for the HOTSPOT field + */ +struct tegra_tsensor_group { + const char *name; + u8 id; + u16 sensor_temp_offset; + u32 sensor_temp_mask; + u32 pdiv, pdiv_ate, pdiv_mask; + u32 pllx_hotspot_diff, pllx_hotspot_mask; +}; + struct tegra_tsensor_configuration { - u32 tall, tsample, tiddq_en, ten_count, pdiv, tsample_ate, pdiv_ate; + u32 tall, tiddq_en, ten_count, tsample, tsample_ate; }; struct tegra_tsensor { @@ -86,21 +127,74 @@ struct tegra_tsensor { u32 base, calib_fuse_offset; /* Correction values used to modify values read from calibration fuses */ s32 fuse_corr_alpha, fuse_corr_beta; + const struct tegra_tsensor_group *group; }; struct tegra_thermctl_zone { void __iomem *reg; - unsigned int shift; + u32 mask; }; static const struct tegra_tsensor_configuration t124_tsensor_config = { .tall = 16300, - .tsample = 120, .tiddq_en = 1, .ten_count = 1, - .pdiv = 8, + .tsample = 120, .tsample_ate = 480, - .pdiv_ate = 8 +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_cpu = { + .id = TEGRA124_SOCTHERM_SENSOR_CPU, + .name = "cpu", + .sensor_temp_offset = SENSOR_TEMP1, + .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_CPU_MASK, + .pllx_hotspot_diff = 10, + .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_gpu = { + .id = TEGRA124_SOCTHERM_SENSOR_GPU, + .name = "gpu", + .sensor_temp_offset = SENSOR_TEMP1, + .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_GPU_MASK, + .pllx_hotspot_diff = 5, + .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_pll = { + .id = TEGRA124_SOCTHERM_SENSOR_PLLX, + .name = "pll", + .sensor_temp_offset = SENSOR_TEMP2, + .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_PLLX_MASK, + .pllx_hotspot_diff = 0, + .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_mem = { + .id = TEGRA124_SOCTHERM_SENSOR_MEM, + .name = "mem", + .sensor_temp_offset = SENSOR_TEMP2, + .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_MEM_MASK, +}; + +static const struct tegra_tsensor_group * +tegra124_tsensor_groups[TEGRA124_SOCTHERM_SENSOR_NUM] = { + &tegra124_tsensor_group_cpu, + &tegra124_tsensor_group_gpu, + &tegra124_tsensor_group_pll, + &tegra124_tsensor_group_mem, }; static const struct tegra_tsensor t124_tsensors[] = { @@ -110,6 +204,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x098, .fuse_corr_alpha = 1135400, .fuse_corr_beta = -6266900, + .group = &tegra124_tsensor_group_cpu, }, { .config = &t124_tsensor_config, @@ -117,6 +212,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x084, .fuse_corr_alpha = 1122220, .fuse_corr_beta = -5700700, + .group = &tegra124_tsensor_group_cpu, }, { .config = &t124_tsensor_config, @@ -124,6 +220,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x088, .fuse_corr_alpha = 1127000, .fuse_corr_beta = -6768200, + .group = &tegra124_tsensor_group_cpu, }, { .config = &t124_tsensor_config, @@ -131,6 +228,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x12c, .fuse_corr_alpha = 1110900, .fuse_corr_beta = -6232000, + .group = &tegra124_tsensor_group_cpu, }, { .config = &t124_tsensor_config, @@ -138,6 +236,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x158, .fuse_corr_alpha = 1122300, .fuse_corr_beta = -5936400, + .group = &tegra124_tsensor_group_mem, }, { .config = &t124_tsensor_config, @@ -145,6 +244,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x15c, .fuse_corr_alpha = 1145700, .fuse_corr_beta = -7124600, + .group = &tegra124_tsensor_group_mem, }, { .config = &t124_tsensor_config, @@ -152,6 +252,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x154, .fuse_corr_alpha = 1120100, .fuse_corr_beta = -6000500, + .group = &tegra124_tsensor_group_gpu, }, { .config = &t124_tsensor_config, @@ -159,6 +260,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x160, .fuse_corr_alpha = 1106500, .fuse_corr_beta = -6729300, + .group = &tegra124_tsensor_group_pll, }, }; @@ -168,7 +270,7 @@ struct tegra_soctherm { struct clk *clock_soctherm; void __iomem *regs; - struct thermal_zone_device *thermctl_tzs[4]; + struct thermal_zone_device *thermctl_tzs[TEGRA124_SOCTHERM_SENSOR_NUM]; }; struct tsensor_shared_calibration { @@ -237,8 +339,8 @@ calculate_tsensor_calibration(const struct tegra_tsensor *sensor, delta_sens = actual_tsensor_ft - actual_tsensor_cp; delta_temp = shared->actual_temp_ft - shared->actual_temp_cp; - mult = sensor->config->pdiv * sensor->config->tsample_ate; - div = sensor->config->tsample * sensor->config->pdiv_ate; + mult = sensor->group->pdiv * sensor->config->tsample_ate; + div = sensor->config->tsample * sensor->group->pdiv_ate; therma = div64_s64_precise((s64) delta_temp * (1LL << 13) * mult, (s64) delta_sens * div); @@ -311,7 +413,8 @@ static int tegra_thermctl_get_temp(void *data, int *out_temp) struct tegra_thermctl_zone *zone = data; u32 val; - val = (readl(zone->reg) >> zone->shift) & SENSOR_TEMP_MASK; + val = readl(zone->reg); + val = REG_GET_MASK(val, zone->mask); *out_temp = translate_temp(val); return 0; @@ -327,18 +430,6 @@ static const struct of_device_id tegra_soctherm_of_match[] = { }; MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match); -struct thermctl_zone_desc { - unsigned int offset; - unsigned int shift; -}; - -static const struct thermctl_zone_desc t124_thermctl_temp_zones[] = { - { SENSOR_TEMP1, 16 }, - { SENSOR_TEMP2, 16 }, - { SENSOR_TEMP1, 0 }, - { SENSOR_TEMP2, 0 } -}; - static int tegra_soctherm_probe(struct platform_device *pdev) { struct tegra_soctherm *tegra; @@ -349,6 +440,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) int err; const struct tegra_tsensor *tsensors = t124_tsensors; + const struct tegra_tsensor_group **ttgs = tegra124_tsensor_groups; tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL); if (!tegra) @@ -408,7 +500,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) /* Initialize thermctl sensors */ - for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) { + for (i = 0; i < TEGRA124_SOCTHERM_SENSOR_NUM; ++i) { struct tegra_thermctl_zone *zone = devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL); if (!zone) { @@ -416,10 +508,11 @@ static int tegra_soctherm_probe(struct platform_device *pdev) goto unregister_tzs; } - zone->reg = tegra->regs + t124_thermctl_temp_zones[i].offset; - zone->shift = t124_thermctl_temp_zones[i].shift; + zone->reg = tegra->regs + ttgs[i]->sensor_temp_offset; + zone->mask = ttgs[i]->sensor_temp_mask; - tz = thermal_zone_of_sensor_register(&pdev->dev, i, zone, + tz = thermal_zone_of_sensor_register(&pdev->dev, + ttgs[i]->id, zone, &tegra_of_thermal_ops); if (IS_ERR(tz)) { err = PTR_ERR(tz); @@ -428,7 +521,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) goto unregister_tzs; } - tegra->thermctl_tzs[i] = tz; + tegra->thermctl_tzs[ttgs[i]->id] = tz; } return 0; diff --git a/include/dt-bindings/thermal/tegra124-soctherm.h b/include/dt-bindings/thermal/tegra124-soctherm.h index 85aaf66690f9..729ab9fc325e 100644 --- a/include/dt-bindings/thermal/tegra124-soctherm.h +++ b/include/dt-bindings/thermal/tegra124-soctherm.h @@ -9,5 +9,6 @@ #define TEGRA124_SOCTHERM_SENSOR_MEM 1 #define TEGRA124_SOCTHERM_SENSOR_GPU 2 #define TEGRA124_SOCTHERM_SENSOR_PLLX 3 +#define TEGRA124_SOCTHERM_SENSOR_NUM 4 #endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V2 02/11] thermal: tegra: combine sensor group-related data @ 2016-01-15 10:24 ` Wei Ni 0 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni Combine sensor group-related data structures into struct tegra_tsensor_group. This provides a single location for sensor group data storage. More sensor group data will be added in subsequent patches. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/tegra/tegra-soctherm.c | 147 +++++++++++++++++++----- include/dt-bindings/thermal/tegra124-soctherm.h | 1 + 2 files changed, 121 insertions(+), 27 deletions(-) diff --git a/drivers/thermal/tegra/tegra-soctherm.c b/drivers/thermal/tegra/tegra-soctherm.c index 74ea5765938b..6ef3a7dec1d8 100644 --- a/drivers/thermal/tegra/tegra-soctherm.c +++ b/drivers/thermal/tegra/tegra-soctherm.c @@ -28,6 +28,7 @@ #include <linux/thermal.h> #include <soc/tegra/fuse.h> +#include <dt-bindings/thermal/tegra124-soctherm.h> #define SENSOR_CONFIG0 0 #define SENSOR_CONFIG0_STOP BIT(0) @@ -48,12 +49,24 @@ #define SENSOR_PDIV 0x1c0 #define SENSOR_PDIV_T124 0x8888 +#define SENSOR_PDIV_CPU_MASK (0xf << 12) +#define SENSOR_PDIV_GPU_MASK (0xf << 8) +#define SENSOR_PDIV_MEM_MASK (0xf << 4) +#define SENSOR_PDIV_PLLX_MASK (0xf << 0) + #define SENSOR_HOTSPOT_OFF 0x1c4 #define SENSOR_HOTSPOT_OFF_T124 0x00060600 +#define SENSOR_HOTSPOT_CPU_MASK (0xff << 16) +#define SENSOR_HOTSPOT_GPU_MASK (0xff << 8) +#define SENSOR_HOTSPOT_MEM_MASK (0xff << 0) + #define SENSOR_TEMP1 0x1c8 +#define SENSOR_TEMP1_CPU_TEMP_MASK (0xffff << 16) +#define SENSOR_TEMP1_GPU_TEMP_MASK 0xffff #define SENSOR_TEMP2 0x1cc +#define SENSOR_TEMP2_MEM_TEMP_MASK (0xffff << 16) +#define SENSOR_TEMP2_PLLX_TEMP_MASK 0xffff -#define SENSOR_TEMP_MASK 0xffff #define READBACK_VALUE_MASK 0xff00 #define READBACK_VALUE_SHIFT 8 #define READBACK_ADD_HALF BIT(7) @@ -77,8 +90,36 @@ #define NOMINAL_CALIB_FT_T124 105 #define NOMINAL_CALIB_CP_T124 25 +/* get val from register(r) mask bits(m) */ +#define REG_GET_MASK(r, m) (((r) & (m)) >> (ffs(m) - 1)) +/* set val(v) to mask bits(m) of register(r) */ +#define REG_SET_MASK(r, m, v) (((r) & ~(m)) | \ + (((v) & (m >> (ffs(m) - 1))) << (ffs(m) - 1))) + +/** + * struct tegra_tsensor_group - SOC_THERM sensor group data + * @name: short name of the temperature sensor group + * @id: numeric ID of the temperature sensor group + * @sensor_temp_offset: offset of the SENSOR_TEMP* register + * @sensor_temp_mask: bit mask for this sensor group in SENSOR_TEMP* register + * @pdiv: the sensor count post-divider to use during runtime + * @pdiv_ate: the sensor count post-divider used during automated test + * @pdiv_mask: register bitfield mask for the PDIV field for this sensor + * @pllx_hotspot_diff: hotspot offset from the PLLX sensor, must be 0 for + PLLX sensor group + * @pllx_hotspot_mask: register bitfield mask for the HOTSPOT field + */ +struct tegra_tsensor_group { + const char *name; + u8 id; + u16 sensor_temp_offset; + u32 sensor_temp_mask; + u32 pdiv, pdiv_ate, pdiv_mask; + u32 pllx_hotspot_diff, pllx_hotspot_mask; +}; + struct tegra_tsensor_configuration { - u32 tall, tsample, tiddq_en, ten_count, pdiv, tsample_ate, pdiv_ate; + u32 tall, tiddq_en, ten_count, tsample, tsample_ate; }; struct tegra_tsensor { @@ -86,21 +127,74 @@ struct tegra_tsensor { u32 base, calib_fuse_offset; /* Correction values used to modify values read from calibration fuses */ s32 fuse_corr_alpha, fuse_corr_beta; + const struct tegra_tsensor_group *group; }; struct tegra_thermctl_zone { void __iomem *reg; - unsigned int shift; + u32 mask; }; static const struct tegra_tsensor_configuration t124_tsensor_config = { .tall = 16300, - .tsample = 120, .tiddq_en = 1, .ten_count = 1, - .pdiv = 8, + .tsample = 120, .tsample_ate = 480, - .pdiv_ate = 8 +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_cpu = { + .id = TEGRA124_SOCTHERM_SENSOR_CPU, + .name = "cpu", + .sensor_temp_offset = SENSOR_TEMP1, + .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_CPU_MASK, + .pllx_hotspot_diff = 10, + .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_gpu = { + .id = TEGRA124_SOCTHERM_SENSOR_GPU, + .name = "gpu", + .sensor_temp_offset = SENSOR_TEMP1, + .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_GPU_MASK, + .pllx_hotspot_diff = 5, + .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_pll = { + .id = TEGRA124_SOCTHERM_SENSOR_PLLX, + .name = "pll", + .sensor_temp_offset = SENSOR_TEMP2, + .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_PLLX_MASK, + .pllx_hotspot_diff = 0, + .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_mem = { + .id = TEGRA124_SOCTHERM_SENSOR_MEM, + .name = "mem", + .sensor_temp_offset = SENSOR_TEMP2, + .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_MEM_MASK, +}; + +static const struct tegra_tsensor_group * +tegra124_tsensor_groups[TEGRA124_SOCTHERM_SENSOR_NUM] = { + &tegra124_tsensor_group_cpu, + &tegra124_tsensor_group_gpu, + &tegra124_tsensor_group_pll, + &tegra124_tsensor_group_mem, }; static const struct tegra_tsensor t124_tsensors[] = { @@ -110,6 +204,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x098, .fuse_corr_alpha = 1135400, .fuse_corr_beta = -6266900, + .group = &tegra124_tsensor_group_cpu, }, { .config = &t124_tsensor_config, @@ -117,6 +212,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x084, .fuse_corr_alpha = 1122220, .fuse_corr_beta = -5700700, + .group = &tegra124_tsensor_group_cpu, }, { .config = &t124_tsensor_config, @@ -124,6 +220,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x088, .fuse_corr_alpha = 1127000, .fuse_corr_beta = -6768200, + .group = &tegra124_tsensor_group_cpu, }, { .config = &t124_tsensor_config, @@ -131,6 +228,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x12c, .fuse_corr_alpha = 1110900, .fuse_corr_beta = -6232000, + .group = &tegra124_tsensor_group_cpu, }, { .config = &t124_tsensor_config, @@ -138,6 +236,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x158, .fuse_corr_alpha = 1122300, .fuse_corr_beta = -5936400, + .group = &tegra124_tsensor_group_mem, }, { .config = &t124_tsensor_config, @@ -145,6 +244,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x15c, .fuse_corr_alpha = 1145700, .fuse_corr_beta = -7124600, + .group = &tegra124_tsensor_group_mem, }, { .config = &t124_tsensor_config, @@ -152,6 +252,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x154, .fuse_corr_alpha = 1120100, .fuse_corr_beta = -6000500, + .group = &tegra124_tsensor_group_gpu, }, { .config = &t124_tsensor_config, @@ -159,6 +260,7 @@ static const struct tegra_tsensor t124_tsensors[] = { .calib_fuse_offset = 0x160, .fuse_corr_alpha = 1106500, .fuse_corr_beta = -6729300, + .group = &tegra124_tsensor_group_pll, }, }; @@ -168,7 +270,7 @@ struct tegra_soctherm { struct clk *clock_soctherm; void __iomem *regs; - struct thermal_zone_device *thermctl_tzs[4]; + struct thermal_zone_device *thermctl_tzs[TEGRA124_SOCTHERM_SENSOR_NUM]; }; struct tsensor_shared_calibration { @@ -237,8 +339,8 @@ calculate_tsensor_calibration(const struct tegra_tsensor *sensor, delta_sens = actual_tsensor_ft - actual_tsensor_cp; delta_temp = shared->actual_temp_ft - shared->actual_temp_cp; - mult = sensor->config->pdiv * sensor->config->tsample_ate; - div = sensor->config->tsample * sensor->config->pdiv_ate; + mult = sensor->group->pdiv * sensor->config->tsample_ate; + div = sensor->config->tsample * sensor->group->pdiv_ate; therma = div64_s64_precise((s64) delta_temp * (1LL << 13) * mult, (s64) delta_sens * div); @@ -311,7 +413,8 @@ static int tegra_thermctl_get_temp(void *data, int *out_temp) struct tegra_thermctl_zone *zone = data; u32 val; - val = (readl(zone->reg) >> zone->shift) & SENSOR_TEMP_MASK; + val = readl(zone->reg); + val = REG_GET_MASK(val, zone->mask); *out_temp = translate_temp(val); return 0; @@ -327,18 +430,6 @@ static const struct of_device_id tegra_soctherm_of_match[] = { }; MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match); -struct thermctl_zone_desc { - unsigned int offset; - unsigned int shift; -}; - -static const struct thermctl_zone_desc t124_thermctl_temp_zones[] = { - { SENSOR_TEMP1, 16 }, - { SENSOR_TEMP2, 16 }, - { SENSOR_TEMP1, 0 }, - { SENSOR_TEMP2, 0 } -}; - static int tegra_soctherm_probe(struct platform_device *pdev) { struct tegra_soctherm *tegra; @@ -349,6 +440,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) int err; const struct tegra_tsensor *tsensors = t124_tsensors; + const struct tegra_tsensor_group **ttgs = tegra124_tsensor_groups; tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL); if (!tegra) @@ -408,7 +500,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) /* Initialize thermctl sensors */ - for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) { + for (i = 0; i < TEGRA124_SOCTHERM_SENSOR_NUM; ++i) { struct tegra_thermctl_zone *zone = devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL); if (!zone) { @@ -416,10 +508,11 @@ static int tegra_soctherm_probe(struct platform_device *pdev) goto unregister_tzs; } - zone->reg = tegra->regs + t124_thermctl_temp_zones[i].offset; - zone->shift = t124_thermctl_temp_zones[i].shift; + zone->reg = tegra->regs + ttgs[i]->sensor_temp_offset; + zone->mask = ttgs[i]->sensor_temp_mask; - tz = thermal_zone_of_sensor_register(&pdev->dev, i, zone, + tz = thermal_zone_of_sensor_register(&pdev->dev, + ttgs[i]->id, zone, &tegra_of_thermal_ops); if (IS_ERR(tz)) { err = PTR_ERR(tz); @@ -428,7 +521,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) goto unregister_tzs; } - tegra->thermctl_tzs[i] = tz; + tegra->thermctl_tzs[ttgs[i]->id] = tz; } return 0; diff --git a/include/dt-bindings/thermal/tegra124-soctherm.h b/include/dt-bindings/thermal/tegra124-soctherm.h index 85aaf66690f9..729ab9fc325e 100644 --- a/include/dt-bindings/thermal/tegra124-soctherm.h +++ b/include/dt-bindings/thermal/tegra124-soctherm.h @@ -9,5 +9,6 @@ #define TEGRA124_SOCTHERM_SENSOR_MEM 1 #define TEGRA124_SOCTHERM_SENSOR_GPU 2 #define TEGRA124_SOCTHERM_SENSOR_PLLX 3 +#define TEGRA124_SOCTHERM_SENSOR_NUM 4 #endif -- 1.9.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V2 03/11] thermal: tegra: get rid of PDIV/HOTSPOT hack 2016-01-15 10:24 ` Wei Ni @ 2016-01-15 10:24 ` Wei Ni -1 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni Get rid of T124-specific PDIV/HOTSPOT hack. tegra-soctherm.c contained a hack to set the SENSOR_PDIV and SENSOR_HOTSPOT_OFFSET registers - it just did two writes of T124-specific opaque values. Convert these into a form that can be substituted on a per-chip basis, and into structure fields that have at least some independent meaning. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/tegra/tegra-soctherm.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/thermal/tegra/tegra-soctherm.c b/drivers/thermal/tegra/tegra-soctherm.c index 6ef3a7dec1d8..6c3d508929d7 100644 --- a/drivers/thermal/tegra/tegra-soctherm.c +++ b/drivers/thermal/tegra/tegra-soctherm.c @@ -48,14 +48,12 @@ #define SENSOR_CONFIG2_THERMB_SHIFT 0 #define SENSOR_PDIV 0x1c0 -#define SENSOR_PDIV_T124 0x8888 #define SENSOR_PDIV_CPU_MASK (0xf << 12) #define SENSOR_PDIV_GPU_MASK (0xf << 8) #define SENSOR_PDIV_MEM_MASK (0xf << 4) #define SENSOR_PDIV_PLLX_MASK (0xf << 0) #define SENSOR_HOTSPOT_OFF 0x1c4 -#define SENSOR_HOTSPOT_OFF_T124 0x00060600 #define SENSOR_HOTSPOT_CPU_MASK (0xff << 16) #define SENSOR_HOTSPOT_GPU_MASK (0xff << 8) #define SENSOR_HOTSPOT_MEM_MASK (0xff << 0) @@ -438,6 +436,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) struct resource *res; unsigned int i; int err; + u32 pdiv, hotspot; const struct tegra_tsensor *tsensors = t124_tsensors; const struct tegra_tsensor_group **ttgs = tegra124_tsensor_groups; @@ -495,8 +494,20 @@ static int tegra_soctherm_probe(struct platform_device *pdev) goto disable_clocks; } - writel(SENSOR_PDIV_T124, tegra->regs + SENSOR_PDIV); - writel(SENSOR_HOTSPOT_OFF_T124, tegra->regs + SENSOR_HOTSPOT_OFF); + + /* program pdiv and hotspot offsets per THERM */ + pdiv = readl(tegra->regs + SENSOR_PDIV); + hotspot = readl(tegra->regs + SENSOR_HOTSPOT_OFF); + for (i = 0; i < TEGRA124_SOCTHERM_SENSOR_NUM; ++i) { + pdiv = REG_SET_MASK(pdiv, ttgs[i]->pdiv_mask, + ttgs[i]->pdiv); + if (ttgs[i]->id != TEGRA124_SOCTHERM_SENSOR_PLLX) + hotspot = REG_SET_MASK(hotspot, + ttgs[i]->pllx_hotspot_mask, + ttgs[i]->pllx_hotspot_diff); + } + writel(pdiv, tegra->regs + SENSOR_PDIV); + writel(hotspot, tegra->regs + SENSOR_HOTSPOT_OFF); /* Initialize thermctl sensors */ -- 1.9.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V2 03/11] thermal: tegra: get rid of PDIV/HOTSPOT hack @ 2016-01-15 10:24 ` Wei Ni 0 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni Get rid of T124-specific PDIV/HOTSPOT hack. tegra-soctherm.c contained a hack to set the SENSOR_PDIV and SENSOR_HOTSPOT_OFFSET registers - it just did two writes of T124-specific opaque values. Convert these into a form that can be substituted on a per-chip basis, and into structure fields that have at least some independent meaning. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/tegra/tegra-soctherm.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/thermal/tegra/tegra-soctherm.c b/drivers/thermal/tegra/tegra-soctherm.c index 6ef3a7dec1d8..6c3d508929d7 100644 --- a/drivers/thermal/tegra/tegra-soctherm.c +++ b/drivers/thermal/tegra/tegra-soctherm.c @@ -48,14 +48,12 @@ #define SENSOR_CONFIG2_THERMB_SHIFT 0 #define SENSOR_PDIV 0x1c0 -#define SENSOR_PDIV_T124 0x8888 #define SENSOR_PDIV_CPU_MASK (0xf << 12) #define SENSOR_PDIV_GPU_MASK (0xf << 8) #define SENSOR_PDIV_MEM_MASK (0xf << 4) #define SENSOR_PDIV_PLLX_MASK (0xf << 0) #define SENSOR_HOTSPOT_OFF 0x1c4 -#define SENSOR_HOTSPOT_OFF_T124 0x00060600 #define SENSOR_HOTSPOT_CPU_MASK (0xff << 16) #define SENSOR_HOTSPOT_GPU_MASK (0xff << 8) #define SENSOR_HOTSPOT_MEM_MASK (0xff << 0) @@ -438,6 +436,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) struct resource *res; unsigned int i; int err; + u32 pdiv, hotspot; const struct tegra_tsensor *tsensors = t124_tsensors; const struct tegra_tsensor_group **ttgs = tegra124_tsensor_groups; @@ -495,8 +494,20 @@ static int tegra_soctherm_probe(struct platform_device *pdev) goto disable_clocks; } - writel(SENSOR_PDIV_T124, tegra->regs + SENSOR_PDIV); - writel(SENSOR_HOTSPOT_OFF_T124, tegra->regs + SENSOR_HOTSPOT_OFF); + + /* program pdiv and hotspot offsets per THERM */ + pdiv = readl(tegra->regs + SENSOR_PDIV); + hotspot = readl(tegra->regs + SENSOR_HOTSPOT_OFF); + for (i = 0; i < TEGRA124_SOCTHERM_SENSOR_NUM; ++i) { + pdiv = REG_SET_MASK(pdiv, ttgs[i]->pdiv_mask, + ttgs[i]->pdiv); + if (ttgs[i]->id != TEGRA124_SOCTHERM_SENSOR_PLLX) + hotspot = REG_SET_MASK(hotspot, + ttgs[i]->pllx_hotspot_mask, + ttgs[i]->pllx_hotspot_diff); + } + writel(pdiv, tegra->regs + SENSOR_PDIV); + writel(hotspot, tegra->regs + SENSOR_HOTSPOT_OFF); /* Initialize thermctl sensors */ -- 1.9.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V2 04/11] thermal: tegra: split tegra_soctherm driver 2016-01-15 10:24 ` Wei Ni @ 2016-01-15 10:24 ` Wei Ni -1 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni Split most of the Tegra124 data and code into a Tegra124-specific file. Split most of the fuse-related code into a fuse-related source file. This is in preparation for adding a Tegra210-specific driver in a future patch. Beyond the maintainability improvements, this is intended to separate chip-specific ATE and characterization-related hacks into chip-specific files, in the hopes that they won't pollute code for other chips. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/tegra/Kconfig | 2 +- drivers/thermal/tegra/Makefile | 5 +- drivers/thermal/tegra/soctherm-fuse.c | 144 ++++++++ drivers/thermal/tegra/soctherm.c | 309 ++++++++++++++++ drivers/thermal/tegra/soctherm.h | 112 ++++++ drivers/thermal/tegra/tegra-soctherm.c | 580 ------------------------------ drivers/thermal/tegra/tegra124-soctherm.c | 180 ++++++++++ 7 files changed, 750 insertions(+), 582 deletions(-) create mode 100644 drivers/thermal/tegra/soctherm-fuse.c create mode 100644 drivers/thermal/tegra/soctherm.c create mode 100644 drivers/thermal/tegra/soctherm.h delete mode 100644 drivers/thermal/tegra/tegra-soctherm.c create mode 100644 drivers/thermal/tegra/tegra124-soctherm.c diff --git a/drivers/thermal/tegra/Kconfig b/drivers/thermal/tegra/Kconfig index 0b719d8b629b..fc8a6769b70d 100644 --- a/drivers/thermal/tegra/Kconfig +++ b/drivers/thermal/tegra/Kconfig @@ -5,7 +5,7 @@ config TEGRA_SOCTHERM depends on ARCH_TEGRA help Enable this option for integrated thermal management support on NVIDIA - Tegra124 systems-on-chip. The driver supports four thermal zones + Tegra systems-on-chip. The driver supports four thermal zones (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal zones to manage temperatures. This option is also required for the emergency thermal reset (thermtrip) feature to function. diff --git a/drivers/thermal/tegra/Makefile b/drivers/thermal/tegra/Makefile index 2085d5e86495..f0b40ec42e3b 100644 --- a/drivers/thermal/tegra/Makefile +++ b/drivers/thermal/tegra/Makefile @@ -1 +1,4 @@ -obj-$(CONFIG_TEGRA_SOCTHERM) += tegra_soctherm.o +obj-$(CONFIG_TEGRA_SOCTHERM) += tegra-soctherm.o + +tegra-soctherm-y := soctherm.o soctherm-fuse.o +tegra-soctherm-$(CONFIG_ARCH_TEGRA_124_SOC) += tegra124-soctherm.o diff --git a/drivers/thermal/tegra/soctherm-fuse.c b/drivers/thermal/tegra/soctherm-fuse.c new file mode 100644 index 000000000000..e34e1f76ecad --- /dev/null +++ b/drivers/thermal/tegra/soctherm-fuse.c @@ -0,0 +1,144 @@ +/* + * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved. + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <soc/tegra/fuse.h> + +#include "soctherm.h" + +#define NOMINAL_CALIB_FT 105 +#define NOMINAL_CALIB_CP 25 + +#define FUSE_TSENSOR_CALIB_CP_TS_BASE_MASK 0x1fff +#define FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK (0x1fff << 13) +#define FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT 13 + +#define FUSE_TSENSOR_COMMON 0x180 + +/* + * Tegra12x, etc: + * FUSE_TSENSOR_COMMON: + * 3 2 1 0 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |-----------| SHFT_FT | BASE_FT | BASE_CP | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * FUSE_SPARE_REALIGNMENT_REG: + * 3 2 1 0 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |---------------------------------------------------| SHIFT_CP | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +static s64 div64_s64_precise(s64 a, s64 b) +{ + s64 r, al; + + /* Scale up for increased precision division */ + al = a << 16; + + r = div64_s64(al * 2 + 1, 2 * b); + return r >> 16; +} + +int tegra_soctherm_calculate_shared_calibration( + const struct tegra_soctherm_fuse *tfuse, + struct tsensor_shared_calibration *r) +{ + u32 val; + s32 shifted_cp, shifted_ft; + int err; + + err = tegra_fuse_readl(FUSE_TSENSOR_COMMON, &val); + if (err) + return err; + + r->base_cp = (val & tfuse->fuse_base_cp_mask) + >> tfuse->fuse_base_cp_shift; + r->base_ft = (val & tfuse->fuse_base_ft_mask) + >> tfuse->fuse_base_ft_shift; + + shifted_ft = (val & tfuse->fuse_shift_ft_mask) + >> tfuse->fuse_shift_ft_shift; + shifted_ft = sign_extend32(shifted_ft, 4); + + if (tfuse->fuse_spare_realignment) { + err = tegra_fuse_readl(tfuse->fuse_spare_realignment, &val); + if (err) + return err; + } + + shifted_cp = sign_extend32(val, 5); + + r->actual_temp_cp = 2 * NOMINAL_CALIB_CP + shifted_cp; + r->actual_temp_ft = 2 * NOMINAL_CALIB_FT + shifted_ft; + + return 0; +} + +int tegra_soctherm_calculate_tsensor_calibration( + struct tegra_tsensor *sensor, + const struct tsensor_shared_calibration *shared) +{ + const struct tegra_tsensor_group *sensor_group; + u32 val, calib; + s32 actual_tsensor_ft, actual_tsensor_cp; + s32 delta_sens, delta_temp; + s32 mult, div; + s16 therma, thermb; + int err; + + sensor_group = sensor->group; + + err = tegra_fuse_readl(sensor->calib_fuse_offset, &val); + if (err) + return err; + + actual_tsensor_cp = (shared->base_cp * 64) + sign_extend32(val, 12); + val = (val & FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK) + >> FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT; + actual_tsensor_ft = (shared->base_ft * 32) + sign_extend32(val, 12); + + delta_sens = actual_tsensor_ft - actual_tsensor_cp; + delta_temp = shared->actual_temp_ft - shared->actual_temp_cp; + + mult = sensor_group->pdiv * sensor->config->tsample_ate; + div = sensor->config->tsample * sensor_group->pdiv_ate; + + therma = div64_s64_precise((s64)delta_temp * (1LL << 13) * mult, + (s64)delta_sens * div); + thermb = div64_s64_precise( + ((s64)actual_tsensor_ft * shared->actual_temp_cp) - + ((s64)actual_tsensor_cp * shared->actual_temp_ft), + (s64)delta_sens); + + therma = div64_s64_precise((s64)therma * sensor->fuse_corr_alpha, + (s64)1000000LL); + thermb = div64_s64_precise((s64)thermb * sensor->fuse_corr_alpha + + sensor->fuse_corr_beta, + (s64)1000000LL); + calib = ((u16)therma << SENSOR_CONFIG2_THERMA_SHIFT) | + ((u16)thermb << SENSOR_CONFIG2_THERMB_SHIFT); + + sensor->calib = calib; + + return 0; +} + +MODULE_AUTHOR("Wei Ni <wni@nvidia.com>"); +MODULE_DESCRIPTION("Tegra SOCTHERM fuse management"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c new file mode 100644 index 000000000000..6de566d510c7 --- /dev/null +++ b/drivers/thermal/tegra/soctherm.c @@ -0,0 +1,309 @@ +/* + * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * + * Author: + * Mikko Perttunen <mperttunen@nvidia.com> + * + * 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. + * + */ + +#include <linux/bitops.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/reset.h> +#include <linux/thermal.h> + +#include <dt-bindings/thermal/tegra124-soctherm.h> + +#include "soctherm.h" + +#define SENSOR_CONFIG0 0 +#define SENSOR_CONFIG0_STOP BIT(0) +#define SENSOR_CONFIG0_TALL_SHIFT 8 +#define SENSOR_CONFIG0_TCALC_OVER BIT(4) +#define SENSOR_CONFIG0_OVER BIT(3) +#define SENSOR_CONFIG0_CPTR_OVER BIT(2) + +#define SENSOR_CONFIG1 4 +#define SENSOR_CONFIG1_TSAMPLE_SHIFT 0 +#define SENSOR_CONFIG1_TIDDQ_EN_SHIFT 15 +#define SENSOR_CONFIG1_TEN_COUNT_SHIFT 24 +#define SENSOR_CONFIG1_TEMP_ENABLE BIT(31) + +/* + * SENSOR_CONFIG2 is defined in tegra_soctherm.h + * because, it will be used by tegra_soctherm_fuse.c + */ + +#define READBACK_VALUE_MASK 0xff00 +#define READBACK_VALUE_SHIFT 8 +#define READBACK_ADD_HALF BIT(7) +#define READBACK_NEGATE BIT(1) + +/* get val from register(r) mask bits(m) */ +#define REG_GET_MASK(r, m) (((r) & (m)) >> (ffs(m) - 1)) +/* set val(v) to mask bits(m) of register(r) */ +#define REG_SET_MASK(r, m, v) (((r) & ~(m)) | \ + (((v) & (m >> (ffs(m) - 1))) << (ffs(m) - 1))) + +struct tegra_thermctl_zone { + void __iomem *reg; + u32 mask; +}; + +struct tegra_soctherm { + struct reset_control *reset; + struct clk *clock_tsensor; + struct clk *clock_soctherm; + void __iomem *regs; + + struct thermal_zone_device *thermctl_tzs[TEGRA124_SOCTHERM_SENSOR_NUM]; +}; + +static int enable_tsensor(struct tegra_soctherm *tegra, + struct tegra_tsensor *sensor, + const struct tsensor_shared_calibration *shared) +{ + void __iomem *base = tegra->regs + sensor->base; + unsigned int val; + int err; + + err = tegra_soctherm_calculate_tsensor_calibration(sensor, shared); + if (err) + return err; + + val = sensor->config->tall << SENSOR_CONFIG0_TALL_SHIFT; + writel(val, base + SENSOR_CONFIG0); + + val = (sensor->config->tsample - 1) << SENSOR_CONFIG1_TSAMPLE_SHIFT; + val |= sensor->config->tiddq_en << SENSOR_CONFIG1_TIDDQ_EN_SHIFT; + val |= sensor->config->ten_count << SENSOR_CONFIG1_TEN_COUNT_SHIFT; + val |= SENSOR_CONFIG1_TEMP_ENABLE; + writel(val, base + SENSOR_CONFIG1); + + writel(sensor->calib, base + SENSOR_CONFIG2); + + return 0; +} + +/* + * Translate from soctherm readback format to millicelsius. + * The soctherm readback format in bits is as follows: + * TTTTTTTT H______N + * where T's contain the temperature in Celsius, + * H denotes an addition of 0.5 Celsius and N denotes negation + * of the final value. + */ +static int translate_temp(u16 val) +{ + long t; + + t = ((val & READBACK_VALUE_MASK) >> READBACK_VALUE_SHIFT) * 1000; + if (val & READBACK_ADD_HALF) + t += 500; + if (val & READBACK_NEGATE) + t *= -1; + + return t; +} + +static int tegra_thermctl_get_temp(void *data, int *out_temp) +{ + struct tegra_thermctl_zone *zone = data; + u32 val; + + val = readl(zone->reg); + val = REG_GET_MASK(val, zone->mask); + *out_temp = translate_temp(val); + + return 0; +} + +static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = { + .get_temp = tegra_thermctl_get_temp, +}; + +static const struct of_device_id tegra_soctherm_of_match[] = { +#ifdef CONFIG_ARCH_TEGRA_124_SOC + { + .compatible = "nvidia,tegra124-soctherm", + .data = &tegra124_soctherm, + }, +#endif + { }, +}; +MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match); + +static int tegra_soctherm_probe(struct platform_device *pdev) +{ + const struct of_device_id *match; + struct tegra_soctherm *tegra; + struct thermal_zone_device *tz; + struct tsensor_shared_calibration shared_calib; + struct resource *res; + struct tegra_soctherm_soc *soc; + unsigned int i; + int err; + u32 pdiv, hotspot; + + match = of_match_node(tegra_soctherm_of_match, pdev->dev.of_node); + if (!match) + return -ENODEV; + + soc = (struct tegra_soctherm_soc *)match->data; + if (soc->num_ttgs > TEGRA124_SOCTHERM_SENSOR_NUM) + return -EINVAL; + + tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL); + if (!tegra) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + tegra->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(tegra->regs)) + return PTR_ERR(tegra->regs); + + tegra->reset = devm_reset_control_get(&pdev->dev, "soctherm"); + if (IS_ERR(tegra->reset)) { + dev_err(&pdev->dev, "can't get soctherm reset\n"); + return PTR_ERR(tegra->reset); + } + + tegra->clock_tsensor = devm_clk_get(&pdev->dev, "tsensor"); + if (IS_ERR(tegra->clock_tsensor)) { + dev_err(&pdev->dev, "can't get tsensor clock\n"); + return PTR_ERR(tegra->clock_tsensor); + } + + tegra->clock_soctherm = devm_clk_get(&pdev->dev, "soctherm"); + if (IS_ERR(tegra->clock_soctherm)) { + dev_err(&pdev->dev, "can't get soctherm clock\n"); + return PTR_ERR(tegra->clock_soctherm); + } + + reset_control_assert(tegra->reset); + + err = clk_prepare_enable(tegra->clock_soctherm); + if (err) + return err; + + err = clk_prepare_enable(tegra->clock_tsensor); + if (err) { + clk_disable_unprepare(tegra->clock_soctherm); + return err; + } + + reset_control_deassert(tegra->reset); + + /* Initialize raw sensors */ + + err = tegra_soctherm_calculate_shared_calibration(soc->tfuse, + &shared_calib); + if (err) + goto disable_clocks; + + for (i = 0; i < soc->num_tsensors; ++i) { + err = enable_tsensor(tegra, &soc->tsensors[i], &shared_calib); + if (err) + goto disable_clocks; + } + + + /* program pdiv and hotspot offsets per THERM */ + pdiv = readl(tegra->regs + SENSOR_PDIV); + hotspot = readl(tegra->regs + SENSOR_HOTSPOT_OFF); + for (i = 0; i < soc->num_ttgs; ++i) { + pdiv = REG_SET_MASK(pdiv, soc->ttgs[i]->pdiv_mask, + soc->ttgs[i]->pdiv); + if (soc->ttgs[i]->id == TEGRA124_SOCTHERM_SENSOR_PLLX) + continue; + hotspot = REG_SET_MASK(hotspot, + soc->ttgs[i]->pllx_hotspot_mask, + soc->ttgs[i]->pllx_hotspot_diff); + } + writel(pdiv, tegra->regs + SENSOR_PDIV); + writel(hotspot, tegra->regs + SENSOR_HOTSPOT_OFF); + + /* Initialize thermctl sensors */ + + for (i = 0; i < soc->num_ttgs; ++i) { + struct tegra_thermctl_zone *zone = + devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL); + if (!zone) { + err = -ENOMEM; + goto unregister_tzs; + } + + zone->reg = tegra->regs + soc->ttgs[i]->sensor_temp_offset; + zone->mask = soc->ttgs[i]->sensor_temp_mask; + + tz = thermal_zone_of_sensor_register(&pdev->dev, + soc->ttgs[i]->id, zone, + &tegra_of_thermal_ops); + if (IS_ERR(tz)) { + err = PTR_ERR(tz); + dev_err(&pdev->dev, "failed to register sensor: %d\n", + err); + goto unregister_tzs; + } + + tegra->thermctl_tzs[soc->ttgs[i]->id] = tz; + } + + return 0; + +unregister_tzs: + while (i--) + thermal_zone_of_sensor_unregister(&pdev->dev, + tegra->thermctl_tzs[i]); + +disable_clocks: + clk_disable_unprepare(tegra->clock_tsensor); + clk_disable_unprepare(tegra->clock_soctherm); + + return err; +} + +static int tegra_soctherm_remove(struct platform_device *pdev) +{ + struct tegra_soctherm *tegra = platform_get_drvdata(pdev); + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) { + thermal_zone_of_sensor_unregister(&pdev->dev, + tegra->thermctl_tzs[i]); + } + + clk_disable_unprepare(tegra->clock_tsensor); + clk_disable_unprepare(tegra->clock_soctherm); + + return 0; +} + +static struct platform_driver tegra_soctherm_driver = { + .probe = tegra_soctherm_probe, + .remove = tegra_soctherm_remove, + .driver = { + .name = "tegra_soctherm", + .of_match_table = tegra_soctherm_of_match, + }, +}; +module_platform_driver(tegra_soctherm_driver); + +MODULE_AUTHOR("Mikko Perttunen <mperttunen@nvidia.com>"); +MODULE_DESCRIPTION("NVIDIA Tegra SOCTHERM thermal management driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/tegra/soctherm.h b/drivers/thermal/tegra/soctherm.h new file mode 100644 index 000000000000..1ac66cafb392 --- /dev/null +++ b/drivers/thermal/tegra/soctherm.h @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved. + * + * 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. + * + */ + +#ifndef __DRIVERS_THERMAL_TEGRA_SOCTHERM_H +#define __DRIVERS_THERMAL_TEGRA_SOCTHERM_H + +#define SENSOR_CONFIG2 8 +#define SENSOR_CONFIG2_THERMA_SHIFT 16 +#define SENSOR_CONFIG2_THERMB_SHIFT 0 + +#define SENSOR_PDIV 0x1c0 +#define SENSOR_PDIV_CPU_MASK (0xf << 12) +#define SENSOR_PDIV_GPU_MASK (0xf << 8) +#define SENSOR_PDIV_MEM_MASK (0xf << 4) +#define SENSOR_PDIV_PLLX_MASK (0xf << 0) + +#define SENSOR_HOTSPOT_OFF 0x1c4 +#define SENSOR_HOTSPOT_CPU_MASK (0xff << 16) +#define SENSOR_HOTSPOT_GPU_MASK (0xff << 8) +#define SENSOR_HOTSPOT_MEM_MASK (0xff << 0) + +#define SENSOR_TEMP1 0x1c8 +#define SENSOR_TEMP1_CPU_TEMP_MASK (0xffff << 16) +#define SENSOR_TEMP1_GPU_TEMP_MASK 0xffff +#define SENSOR_TEMP2 0x1cc +#define SENSOR_TEMP2_MEM_TEMP_MASK (0xffff << 16) +#define SENSOR_TEMP2_PLLX_TEMP_MASK 0xffff + +/** + * struct tegra_tsensor_group - SOC_THERM sensor group data + * @name: short name of the temperature sensor group + * @id: numeric ID of the temperature sensor group + * @sensor_temp_offset: offset of the SENSOR_TEMP* register + * @sensor_temp_mask: bit mask for this sensor group in SENSOR_TEMP* register + * @pdiv: the sensor count post-divider to use during runtime + * @pdiv_ate: the sensor count post-divider used during automated test + * @pdiv_mask: register bitfield mask for the PDIV field for this sensor + * @pllx_hotspot_diff: hotspot offset from the PLLX sensor, must be 0 for + PLLX sensor group + * @pllx_hotspot_mask: register bitfield mask for the HOTSPOT field + */ +struct tegra_tsensor_group { + const char *name; + u8 id; + u16 sensor_temp_offset; + u32 sensor_temp_mask; + u32 pdiv, pdiv_ate, pdiv_mask; + u32 pllx_hotspot_diff, pllx_hotspot_mask; +}; + +struct tegra_tsensor_configuration { + u32 tall, tiddq_en, ten_count, pdiv, pdiv_ate, tsample, tsample_ate; +}; + +struct tegra_tsensor { + const char *name; + u32 base; + const struct tegra_tsensor_configuration *config; + u32 calib_fuse_offset; + /* + * Correction values used to modify values read from + * calibration fuses + */ + s32 fuse_corr_alpha, fuse_corr_beta; + u32 calib; + const struct tegra_tsensor_group *group; +}; + +struct tegra_soctherm_fuse { + u32 fuse_base_cp_mask, fuse_base_cp_shift; + u32 fuse_base_ft_mask, fuse_base_ft_shift; + u32 fuse_shift_ft_mask, fuse_shift_ft_shift; + u32 fuse_spare_realignment; +}; + +struct tsensor_shared_calibration { + u32 base_cp, base_ft; + u32 actual_temp_cp, actual_temp_ft; +}; + +struct tegra_soctherm_soc { + struct tegra_tsensor *tsensors; + unsigned int num_tsensors; + const struct tegra_tsensor_group **ttgs; + unsigned int num_ttgs; + const struct tegra_soctherm_fuse *tfuse; +}; + +int tegra_soctherm_calculate_shared_calibration( + const struct tegra_soctherm_fuse *tfuse, + struct tsensor_shared_calibration *shared); +int tegra_soctherm_calculate_tsensor_calibration( + struct tegra_tsensor *sensor, + const struct tsensor_shared_calibration *shared); + +#ifdef CONFIG_ARCH_TEGRA_124_SOC +extern struct tegra_soctherm_soc tegra124_soctherm; +#endif + +#endif + diff --git a/drivers/thermal/tegra/tegra-soctherm.c b/drivers/thermal/tegra/tegra-soctherm.c deleted file mode 100644 index 6c3d508929d7..000000000000 --- a/drivers/thermal/tegra/tegra-soctherm.c +++ /dev/null @@ -1,580 +0,0 @@ -/* - * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. - * - * Author: - * Mikko Perttunen <mperttunen@nvidia.com> - * - * 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. - * - */ - -#include <linux/bitops.h> -#include <linux/clk.h> -#include <linux/delay.h> -#include <linux/err.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/reset.h> -#include <linux/thermal.h> - -#include <soc/tegra/fuse.h> -#include <dt-bindings/thermal/tegra124-soctherm.h> - -#define SENSOR_CONFIG0 0 -#define SENSOR_CONFIG0_STOP BIT(0) -#define SENSOR_CONFIG0_TALL_SHIFT 8 -#define SENSOR_CONFIG0_TCALC_OVER BIT(4) -#define SENSOR_CONFIG0_OVER BIT(3) -#define SENSOR_CONFIG0_CPTR_OVER BIT(2) - -#define SENSOR_CONFIG1 4 -#define SENSOR_CONFIG1_TSAMPLE_SHIFT 0 -#define SENSOR_CONFIG1_TIDDQ_EN_SHIFT 15 -#define SENSOR_CONFIG1_TEN_COUNT_SHIFT 24 -#define SENSOR_CONFIG1_TEMP_ENABLE BIT(31) - -#define SENSOR_CONFIG2 8 -#define SENSOR_CONFIG2_THERMA_SHIFT 16 -#define SENSOR_CONFIG2_THERMB_SHIFT 0 - -#define SENSOR_PDIV 0x1c0 -#define SENSOR_PDIV_CPU_MASK (0xf << 12) -#define SENSOR_PDIV_GPU_MASK (0xf << 8) -#define SENSOR_PDIV_MEM_MASK (0xf << 4) -#define SENSOR_PDIV_PLLX_MASK (0xf << 0) - -#define SENSOR_HOTSPOT_OFF 0x1c4 -#define SENSOR_HOTSPOT_CPU_MASK (0xff << 16) -#define SENSOR_HOTSPOT_GPU_MASK (0xff << 8) -#define SENSOR_HOTSPOT_MEM_MASK (0xff << 0) - -#define SENSOR_TEMP1 0x1c8 -#define SENSOR_TEMP1_CPU_TEMP_MASK (0xffff << 16) -#define SENSOR_TEMP1_GPU_TEMP_MASK 0xffff -#define SENSOR_TEMP2 0x1cc -#define SENSOR_TEMP2_MEM_TEMP_MASK (0xffff << 16) -#define SENSOR_TEMP2_PLLX_TEMP_MASK 0xffff - -#define READBACK_VALUE_MASK 0xff00 -#define READBACK_VALUE_SHIFT 8 -#define READBACK_ADD_HALF BIT(7) -#define READBACK_NEGATE BIT(1) - -#define FUSE_TSENSOR8_CALIB 0x180 -#define FUSE_SPARE_REALIGNMENT_REG_0 0x1fc - -#define FUSE_TSENSOR_CALIB_CP_TS_BASE_MASK 0x1fff -#define FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK (0x1fff << 13) -#define FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT 13 - -#define FUSE_TSENSOR8_CALIB_CP_TS_BASE_MASK 0x3ff -#define FUSE_TSENSOR8_CALIB_FT_TS_BASE_MASK (0x7ff << 10) -#define FUSE_TSENSOR8_CALIB_FT_TS_BASE_SHIFT 10 - -#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_CP_MASK 0x3f -#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_MASK (0x1f << 21) -#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_SHIFT 21 - -#define NOMINAL_CALIB_FT_T124 105 -#define NOMINAL_CALIB_CP_T124 25 - -/* get val from register(r) mask bits(m) */ -#define REG_GET_MASK(r, m) (((r) & (m)) >> (ffs(m) - 1)) -/* set val(v) to mask bits(m) of register(r) */ -#define REG_SET_MASK(r, m, v) (((r) & ~(m)) | \ - (((v) & (m >> (ffs(m) - 1))) << (ffs(m) - 1))) - -/** - * struct tegra_tsensor_group - SOC_THERM sensor group data - * @name: short name of the temperature sensor group - * @id: numeric ID of the temperature sensor group - * @sensor_temp_offset: offset of the SENSOR_TEMP* register - * @sensor_temp_mask: bit mask for this sensor group in SENSOR_TEMP* register - * @pdiv: the sensor count post-divider to use during runtime - * @pdiv_ate: the sensor count post-divider used during automated test - * @pdiv_mask: register bitfield mask for the PDIV field for this sensor - * @pllx_hotspot_diff: hotspot offset from the PLLX sensor, must be 0 for - PLLX sensor group - * @pllx_hotspot_mask: register bitfield mask for the HOTSPOT field - */ -struct tegra_tsensor_group { - const char *name; - u8 id; - u16 sensor_temp_offset; - u32 sensor_temp_mask; - u32 pdiv, pdiv_ate, pdiv_mask; - u32 pllx_hotspot_diff, pllx_hotspot_mask; -}; - -struct tegra_tsensor_configuration { - u32 tall, tiddq_en, ten_count, tsample, tsample_ate; -}; - -struct tegra_tsensor { - const struct tegra_tsensor_configuration *config; - u32 base, calib_fuse_offset; - /* Correction values used to modify values read from calibration fuses */ - s32 fuse_corr_alpha, fuse_corr_beta; - const struct tegra_tsensor_group *group; -}; - -struct tegra_thermctl_zone { - void __iomem *reg; - u32 mask; -}; - -static const struct tegra_tsensor_configuration t124_tsensor_config = { - .tall = 16300, - .tiddq_en = 1, - .ten_count = 1, - .tsample = 120, - .tsample_ate = 480, -}; - -static const struct tegra_tsensor_group tegra124_tsensor_group_cpu = { - .id = TEGRA124_SOCTHERM_SENSOR_CPU, - .name = "cpu", - .sensor_temp_offset = SENSOR_TEMP1, - .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK, - .pdiv = 8, - .pdiv_ate = 8, - .pdiv_mask = SENSOR_PDIV_CPU_MASK, - .pllx_hotspot_diff = 10, - .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK, -}; - -static const struct tegra_tsensor_group tegra124_tsensor_group_gpu = { - .id = TEGRA124_SOCTHERM_SENSOR_GPU, - .name = "gpu", - .sensor_temp_offset = SENSOR_TEMP1, - .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK, - .pdiv = 8, - .pdiv_ate = 8, - .pdiv_mask = SENSOR_PDIV_GPU_MASK, - .pllx_hotspot_diff = 5, - .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK, -}; - -static const struct tegra_tsensor_group tegra124_tsensor_group_pll = { - .id = TEGRA124_SOCTHERM_SENSOR_PLLX, - .name = "pll", - .sensor_temp_offset = SENSOR_TEMP2, - .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK, - .pdiv = 8, - .pdiv_ate = 8, - .pdiv_mask = SENSOR_PDIV_PLLX_MASK, - .pllx_hotspot_diff = 0, - .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK, -}; - -static const struct tegra_tsensor_group tegra124_tsensor_group_mem = { - .id = TEGRA124_SOCTHERM_SENSOR_MEM, - .name = "mem", - .sensor_temp_offset = SENSOR_TEMP2, - .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK, - .pdiv = 8, - .pdiv_ate = 8, - .pdiv_mask = SENSOR_PDIV_MEM_MASK, -}; - -static const struct tegra_tsensor_group * -tegra124_tsensor_groups[TEGRA124_SOCTHERM_SENSOR_NUM] = { - &tegra124_tsensor_group_cpu, - &tegra124_tsensor_group_gpu, - &tegra124_tsensor_group_pll, - &tegra124_tsensor_group_mem, -}; - -static const struct tegra_tsensor t124_tsensors[] = { - { - .config = &t124_tsensor_config, - .base = 0xc0, - .calib_fuse_offset = 0x098, - .fuse_corr_alpha = 1135400, - .fuse_corr_beta = -6266900, - .group = &tegra124_tsensor_group_cpu, - }, - { - .config = &t124_tsensor_config, - .base = 0xe0, - .calib_fuse_offset = 0x084, - .fuse_corr_alpha = 1122220, - .fuse_corr_beta = -5700700, - .group = &tegra124_tsensor_group_cpu, - }, - { - .config = &t124_tsensor_config, - .base = 0x100, - .calib_fuse_offset = 0x088, - .fuse_corr_alpha = 1127000, - .fuse_corr_beta = -6768200, - .group = &tegra124_tsensor_group_cpu, - }, - { - .config = &t124_tsensor_config, - .base = 0x120, - .calib_fuse_offset = 0x12c, - .fuse_corr_alpha = 1110900, - .fuse_corr_beta = -6232000, - .group = &tegra124_tsensor_group_cpu, - }, - { - .config = &t124_tsensor_config, - .base = 0x140, - .calib_fuse_offset = 0x158, - .fuse_corr_alpha = 1122300, - .fuse_corr_beta = -5936400, - .group = &tegra124_tsensor_group_mem, - }, - { - .config = &t124_tsensor_config, - .base = 0x160, - .calib_fuse_offset = 0x15c, - .fuse_corr_alpha = 1145700, - .fuse_corr_beta = -7124600, - .group = &tegra124_tsensor_group_mem, - }, - { - .config = &t124_tsensor_config, - .base = 0x180, - .calib_fuse_offset = 0x154, - .fuse_corr_alpha = 1120100, - .fuse_corr_beta = -6000500, - .group = &tegra124_tsensor_group_gpu, - }, - { - .config = &t124_tsensor_config, - .base = 0x1a0, - .calib_fuse_offset = 0x160, - .fuse_corr_alpha = 1106500, - .fuse_corr_beta = -6729300, - .group = &tegra124_tsensor_group_pll, - }, -}; - -struct tegra_soctherm { - struct reset_control *reset; - struct clk *clock_tsensor; - struct clk *clock_soctherm; - void __iomem *regs; - - struct thermal_zone_device *thermctl_tzs[TEGRA124_SOCTHERM_SENSOR_NUM]; -}; - -struct tsensor_shared_calibration { - u32 base_cp, base_ft; - u32 actual_temp_cp, actual_temp_ft; -}; - -static int calculate_shared_calibration(struct tsensor_shared_calibration *r) -{ - u32 val, shifted_cp, shifted_ft; - int err; - - err = tegra_fuse_readl(FUSE_TSENSOR8_CALIB, &val); - if (err) - return err; - r->base_cp = val & FUSE_TSENSOR8_CALIB_CP_TS_BASE_MASK; - r->base_ft = (val & FUSE_TSENSOR8_CALIB_FT_TS_BASE_MASK) - >> FUSE_TSENSOR8_CALIB_FT_TS_BASE_SHIFT; - val = ((val & FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_MASK) - >> FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_SHIFT); - shifted_ft = sign_extend32(val, 4); - - err = tegra_fuse_readl(FUSE_SPARE_REALIGNMENT_REG_0, &val); - if (err) - return err; - shifted_cp = sign_extend32(val, 5); - - r->actual_temp_cp = 2 * NOMINAL_CALIB_CP_T124 + shifted_cp; - r->actual_temp_ft = 2 * NOMINAL_CALIB_FT_T124 + shifted_ft; - - return 0; -} - -static s64 div64_s64_precise(s64 a, s64 b) -{ - s64 r, al; - - /* Scale up for increased precision division */ - al = a << 16; - - r = div64_s64(al * 2 + 1, 2 * b); - return r >> 16; -} - -static int -calculate_tsensor_calibration(const struct tegra_tsensor *sensor, - const struct tsensor_shared_calibration *shared, - u32 *calib) -{ - u32 val; - s32 actual_tsensor_ft, actual_tsensor_cp, delta_sens, delta_temp, - mult, div; - s16 therma, thermb; - s64 tmp; - int err; - - err = tegra_fuse_readl(sensor->calib_fuse_offset, &val); - if (err) - return err; - - actual_tsensor_cp = (shared->base_cp * 64) + sign_extend32(val, 12); - val = (val & FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK) - >> FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT; - actual_tsensor_ft = (shared->base_ft * 32) + sign_extend32(val, 12); - - delta_sens = actual_tsensor_ft - actual_tsensor_cp; - delta_temp = shared->actual_temp_ft - shared->actual_temp_cp; - - mult = sensor->group->pdiv * sensor->config->tsample_ate; - div = sensor->config->tsample * sensor->group->pdiv_ate; - - therma = div64_s64_precise((s64) delta_temp * (1LL << 13) * mult, - (s64) delta_sens * div); - - tmp = (s64)actual_tsensor_ft * shared->actual_temp_cp - - (s64)actual_tsensor_cp * shared->actual_temp_ft; - thermb = div64_s64_precise(tmp, (s64)delta_sens); - - therma = div64_s64_precise((s64)therma * sensor->fuse_corr_alpha, - (s64)1000000LL); - thermb = div64_s64_precise((s64)thermb * sensor->fuse_corr_alpha + - sensor->fuse_corr_beta, (s64)1000000LL); - - *calib = ((u16)therma << SENSOR_CONFIG2_THERMA_SHIFT) | - ((u16)thermb << SENSOR_CONFIG2_THERMB_SHIFT); - - return 0; -} - -static int enable_tsensor(struct tegra_soctherm *tegra, - const struct tegra_tsensor *sensor, - const struct tsensor_shared_calibration *shared) -{ - void __iomem *base = tegra->regs + sensor->base; - unsigned int val; - u32 calib; - int err; - - err = calculate_tsensor_calibration(sensor, shared, &calib); - if (err) - return err; - - val = sensor->config->tall << SENSOR_CONFIG0_TALL_SHIFT; - writel(val, base + SENSOR_CONFIG0); - - val = (sensor->config->tsample - 1) << SENSOR_CONFIG1_TSAMPLE_SHIFT; - val |= sensor->config->tiddq_en << SENSOR_CONFIG1_TIDDQ_EN_SHIFT; - val |= sensor->config->ten_count << SENSOR_CONFIG1_TEN_COUNT_SHIFT; - val |= SENSOR_CONFIG1_TEMP_ENABLE; - writel(val, base + SENSOR_CONFIG1); - - writel(calib, base + SENSOR_CONFIG2); - - return 0; -} - -/* - * Translate from soctherm readback format to millicelsius. - * The soctherm readback format in bits is as follows: - * TTTTTTTT H______N - * where T's contain the temperature in Celsius, - * H denotes an addition of 0.5 Celsius and N denotes negation - * of the final value. - */ -static int translate_temp(u16 val) -{ - long t; - - t = ((val & READBACK_VALUE_MASK) >> READBACK_VALUE_SHIFT) * 1000; - if (val & READBACK_ADD_HALF) - t += 500; - if (val & READBACK_NEGATE) - t *= -1; - - return t; -} - -static int tegra_thermctl_get_temp(void *data, int *out_temp) -{ - struct tegra_thermctl_zone *zone = data; - u32 val; - - val = readl(zone->reg); - val = REG_GET_MASK(val, zone->mask); - *out_temp = translate_temp(val); - - return 0; -} - -static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = { - .get_temp = tegra_thermctl_get_temp, -}; - -static const struct of_device_id tegra_soctherm_of_match[] = { - { .compatible = "nvidia,tegra124-soctherm" }, - { }, -}; -MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match); - -static int tegra_soctherm_probe(struct platform_device *pdev) -{ - struct tegra_soctherm *tegra; - struct thermal_zone_device *tz; - struct tsensor_shared_calibration shared_calib; - struct resource *res; - unsigned int i; - int err; - u32 pdiv, hotspot; - - const struct tegra_tsensor *tsensors = t124_tsensors; - const struct tegra_tsensor_group **ttgs = tegra124_tsensor_groups; - - tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL); - if (!tegra) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - tegra->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(tegra->regs)) - return PTR_ERR(tegra->regs); - - tegra->reset = devm_reset_control_get(&pdev->dev, "soctherm"); - if (IS_ERR(tegra->reset)) { - dev_err(&pdev->dev, "can't get soctherm reset\n"); - return PTR_ERR(tegra->reset); - } - - tegra->clock_tsensor = devm_clk_get(&pdev->dev, "tsensor"); - if (IS_ERR(tegra->clock_tsensor)) { - dev_err(&pdev->dev, "can't get tsensor clock\n"); - return PTR_ERR(tegra->clock_tsensor); - } - - tegra->clock_soctherm = devm_clk_get(&pdev->dev, "soctherm"); - if (IS_ERR(tegra->clock_soctherm)) { - dev_err(&pdev->dev, "can't get soctherm clock\n"); - return PTR_ERR(tegra->clock_soctherm); - } - - reset_control_assert(tegra->reset); - - err = clk_prepare_enable(tegra->clock_soctherm); - if (err) - return err; - - err = clk_prepare_enable(tegra->clock_tsensor); - if (err) { - clk_disable_unprepare(tegra->clock_soctherm); - return err; - } - - reset_control_deassert(tegra->reset); - - /* Initialize raw sensors */ - - err = calculate_shared_calibration(&shared_calib); - if (err) - goto disable_clocks; - - for (i = 0; i < ARRAY_SIZE(t124_tsensors); ++i) { - err = enable_tsensor(tegra, tsensors + i, &shared_calib); - if (err) - goto disable_clocks; - } - - - /* program pdiv and hotspot offsets per THERM */ - pdiv = readl(tegra->regs + SENSOR_PDIV); - hotspot = readl(tegra->regs + SENSOR_HOTSPOT_OFF); - for (i = 0; i < TEGRA124_SOCTHERM_SENSOR_NUM; ++i) { - pdiv = REG_SET_MASK(pdiv, ttgs[i]->pdiv_mask, - ttgs[i]->pdiv); - if (ttgs[i]->id != TEGRA124_SOCTHERM_SENSOR_PLLX) - hotspot = REG_SET_MASK(hotspot, - ttgs[i]->pllx_hotspot_mask, - ttgs[i]->pllx_hotspot_diff); - } - writel(pdiv, tegra->regs + SENSOR_PDIV); - writel(hotspot, tegra->regs + SENSOR_HOTSPOT_OFF); - - /* Initialize thermctl sensors */ - - for (i = 0; i < TEGRA124_SOCTHERM_SENSOR_NUM; ++i) { - struct tegra_thermctl_zone *zone = - devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL); - if (!zone) { - err = -ENOMEM; - goto unregister_tzs; - } - - zone->reg = tegra->regs + ttgs[i]->sensor_temp_offset; - zone->mask = ttgs[i]->sensor_temp_mask; - - tz = thermal_zone_of_sensor_register(&pdev->dev, - ttgs[i]->id, zone, - &tegra_of_thermal_ops); - if (IS_ERR(tz)) { - err = PTR_ERR(tz); - dev_err(&pdev->dev, "failed to register sensor: %d\n", - err); - goto unregister_tzs; - } - - tegra->thermctl_tzs[ttgs[i]->id] = tz; - } - - return 0; - -unregister_tzs: - while (i--) - thermal_zone_of_sensor_unregister(&pdev->dev, - tegra->thermctl_tzs[i]); - -disable_clocks: - clk_disable_unprepare(tegra->clock_tsensor); - clk_disable_unprepare(tegra->clock_soctherm); - - return err; -} - -static int tegra_soctherm_remove(struct platform_device *pdev) -{ - struct tegra_soctherm *tegra = platform_get_drvdata(pdev); - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) { - thermal_zone_of_sensor_unregister(&pdev->dev, - tegra->thermctl_tzs[i]); - } - - clk_disable_unprepare(tegra->clock_tsensor); - clk_disable_unprepare(tegra->clock_soctherm); - - return 0; -} - -static struct platform_driver tegra_soctherm_driver = { - .probe = tegra_soctherm_probe, - .remove = tegra_soctherm_remove, - .driver = { - .name = "tegra-soctherm", - .of_match_table = tegra_soctherm_of_match, - }, -}; -module_platform_driver(tegra_soctherm_driver); - -MODULE_AUTHOR("Mikko Perttunen <mperttunen@nvidia.com>"); -MODULE_DESCRIPTION("NVIDIA Tegra SOCTHERM thermal management driver"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/tegra/tegra124-soctherm.c b/drivers/thermal/tegra/tegra124-soctherm.c new file mode 100644 index 000000000000..db68f8233b0c --- /dev/null +++ b/drivers/thermal/tegra/tegra124-soctherm.c @@ -0,0 +1,180 @@ +/* + * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved. + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <dt-bindings/thermal/tegra124-soctherm.h> + +#include "soctherm.h" + +static const struct tegra_tsensor_configuration t124_tsensor_config = { + .tall = 16300, + .tiddq_en = 1, + .ten_count = 1, + .tsample = 120, + .tsample_ate = 480, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_cpu = { + .id = TEGRA124_SOCTHERM_SENSOR_CPU, + .name = "cpu", + .sensor_temp_offset = SENSOR_TEMP1, + .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_CPU_MASK, + .pllx_hotspot_diff = 10, + .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_gpu = { + .id = TEGRA124_SOCTHERM_SENSOR_GPU, + .name = "gpu", + .sensor_temp_offset = SENSOR_TEMP1, + .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_GPU_MASK, + .pllx_hotspot_diff = 5, + .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_pll = { + .id = TEGRA124_SOCTHERM_SENSOR_PLLX, + .name = "pll", + .sensor_temp_offset = SENSOR_TEMP2, + .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_PLLX_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_mem = { + .id = TEGRA124_SOCTHERM_SENSOR_MEM, + .name = "mem", + .sensor_temp_offset = SENSOR_TEMP2, + .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_MEM_MASK, + .pllx_hotspot_diff = 0, + .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK, +}; + +static const struct tegra_tsensor_group * +tegra124_tsensor_groups[] = { + &tegra124_tsensor_group_cpu, + &tegra124_tsensor_group_gpu, + &tegra124_tsensor_group_pll, + &tegra124_tsensor_group_mem, +}; + +static struct tegra_tsensor tegra124_tsensors[] = { + { + .name = "cpu0", + .base = 0xc0, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x098, + .fuse_corr_alpha = 1135400, + .fuse_corr_beta = -6266900, + .group = &tegra124_tsensor_group_cpu, + }, + { + .name = "cpu1", + .base = 0xe0, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x084, + .fuse_corr_alpha = 1122220, + .fuse_corr_beta = -5700700, + .group = &tegra124_tsensor_group_cpu, + }, + { + .name = "cpu2", + .base = 0x100, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x088, + .fuse_corr_alpha = 1127000, + .fuse_corr_beta = -6768200, + .group = &tegra124_tsensor_group_cpu, + }, + { + .name = "cpu3", + .base = 0x120, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x12c, + .fuse_corr_alpha = 1110900, + .fuse_corr_beta = -6232000, + .group = &tegra124_tsensor_group_cpu, + }, + { + .name = "mem0", + .base = 0x140, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x158, + .fuse_corr_alpha = 1122300, + .fuse_corr_beta = -5936400, + .group = &tegra124_tsensor_group_mem, + }, + { + .name = "mem1", + .base = 0x160, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x15c, + .fuse_corr_alpha = 1145700, + .fuse_corr_beta = -7124600, + .group = &tegra124_tsensor_group_mem, + }, + { + .name = "gpu", + .base = 0x180, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x154, + .fuse_corr_alpha = 1120100, + .fuse_corr_beta = -6000500, + .group = &tegra124_tsensor_group_gpu, + }, + { + .name = "pllx", + .base = 0x1a0, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x160, + .fuse_corr_alpha = 1106500, + .fuse_corr_beta = -6729300, + .group = &tegra124_tsensor_group_pll, + }, +}; + +/* + * Mask/shift bits in FUSE_TSENSOR_COMMON and + * FUSE_TSENSOR_COMMON, which are described in + * tegra_soctherm_fuse.c + */ +static const struct tegra_soctherm_fuse tegra124_soctherm_fuse = { + .fuse_base_cp_mask = 0x3ff, + .fuse_base_cp_shift = 0, + .fuse_base_ft_mask = 0x7ff << 10, + .fuse_base_ft_shift = 10, + .fuse_shift_ft_mask = 0x1f << 21, + .fuse_shift_ft_shift = 21, + .fuse_spare_realignment = 0x1fc, +}; + +struct tegra_soctherm_soc tegra124_soctherm = { + .tsensors = tegra124_tsensors, + .num_tsensors = ARRAY_SIZE(tegra124_tsensors), + .ttgs = tegra124_tsensor_groups, + .num_ttgs = ARRAY_SIZE(tegra124_tsensor_groups), + .tfuse = &tegra124_soctherm_fuse, +}; -- 1.9.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V2 04/11] thermal: tegra: split tegra_soctherm driver @ 2016-01-15 10:24 ` Wei Ni 0 siblings, 0 replies; 14+ messages in thread From: Wei Ni @ 2016-01-15 10:24 UTC (permalink / raw) To: thierry.reding, rui.zhang Cc: MLongnecker, swarren, mikko.perttunen, linux-tegra, linux-kernel, Wei Ni Split most of the Tegra124 data and code into a Tegra124-specific file. Split most of the fuse-related code into a fuse-related source file. This is in preparation for adding a Tegra210-specific driver in a future patch. Beyond the maintainability improvements, this is intended to separate chip-specific ATE and characterization-related hacks into chip-specific files, in the hopes that they won't pollute code for other chips. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/tegra/Kconfig | 2 +- drivers/thermal/tegra/Makefile | 5 +- drivers/thermal/tegra/soctherm-fuse.c | 144 ++++++++ drivers/thermal/tegra/soctherm.c | 309 ++++++++++++++++ drivers/thermal/tegra/soctherm.h | 112 ++++++ drivers/thermal/tegra/tegra-soctherm.c | 580 ------------------------------ drivers/thermal/tegra/tegra124-soctherm.c | 180 ++++++++++ 7 files changed, 750 insertions(+), 582 deletions(-) create mode 100644 drivers/thermal/tegra/soctherm-fuse.c create mode 100644 drivers/thermal/tegra/soctherm.c create mode 100644 drivers/thermal/tegra/soctherm.h delete mode 100644 drivers/thermal/tegra/tegra-soctherm.c create mode 100644 drivers/thermal/tegra/tegra124-soctherm.c diff --git a/drivers/thermal/tegra/Kconfig b/drivers/thermal/tegra/Kconfig index 0b719d8b629b..fc8a6769b70d 100644 --- a/drivers/thermal/tegra/Kconfig +++ b/drivers/thermal/tegra/Kconfig @@ -5,7 +5,7 @@ config TEGRA_SOCTHERM depends on ARCH_TEGRA help Enable this option for integrated thermal management support on NVIDIA - Tegra124 systems-on-chip. The driver supports four thermal zones + Tegra systems-on-chip. The driver supports four thermal zones (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal zones to manage temperatures. This option is also required for the emergency thermal reset (thermtrip) feature to function. diff --git a/drivers/thermal/tegra/Makefile b/drivers/thermal/tegra/Makefile index 2085d5e86495..f0b40ec42e3b 100644 --- a/drivers/thermal/tegra/Makefile +++ b/drivers/thermal/tegra/Makefile @@ -1 +1,4 @@ -obj-$(CONFIG_TEGRA_SOCTHERM) += tegra_soctherm.o +obj-$(CONFIG_TEGRA_SOCTHERM) += tegra-soctherm.o + +tegra-soctherm-y := soctherm.o soctherm-fuse.o +tegra-soctherm-$(CONFIG_ARCH_TEGRA_124_SOC) += tegra124-soctherm.o diff --git a/drivers/thermal/tegra/soctherm-fuse.c b/drivers/thermal/tegra/soctherm-fuse.c new file mode 100644 index 000000000000..e34e1f76ecad --- /dev/null +++ b/drivers/thermal/tegra/soctherm-fuse.c @@ -0,0 +1,144 @@ +/* + * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved. + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <soc/tegra/fuse.h> + +#include "soctherm.h" + +#define NOMINAL_CALIB_FT 105 +#define NOMINAL_CALIB_CP 25 + +#define FUSE_TSENSOR_CALIB_CP_TS_BASE_MASK 0x1fff +#define FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK (0x1fff << 13) +#define FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT 13 + +#define FUSE_TSENSOR_COMMON 0x180 + +/* + * Tegra12x, etc: + * FUSE_TSENSOR_COMMON: + * 3 2 1 0 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |-----------| SHFT_FT | BASE_FT | BASE_CP | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * FUSE_SPARE_REALIGNMENT_REG: + * 3 2 1 0 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |---------------------------------------------------| SHIFT_CP | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +static s64 div64_s64_precise(s64 a, s64 b) +{ + s64 r, al; + + /* Scale up for increased precision division */ + al = a << 16; + + r = div64_s64(al * 2 + 1, 2 * b); + return r >> 16; +} + +int tegra_soctherm_calculate_shared_calibration( + const struct tegra_soctherm_fuse *tfuse, + struct tsensor_shared_calibration *r) +{ + u32 val; + s32 shifted_cp, shifted_ft; + int err; + + err = tegra_fuse_readl(FUSE_TSENSOR_COMMON, &val); + if (err) + return err; + + r->base_cp = (val & tfuse->fuse_base_cp_mask) + >> tfuse->fuse_base_cp_shift; + r->base_ft = (val & tfuse->fuse_base_ft_mask) + >> tfuse->fuse_base_ft_shift; + + shifted_ft = (val & tfuse->fuse_shift_ft_mask) + >> tfuse->fuse_shift_ft_shift; + shifted_ft = sign_extend32(shifted_ft, 4); + + if (tfuse->fuse_spare_realignment) { + err = tegra_fuse_readl(tfuse->fuse_spare_realignment, &val); + if (err) + return err; + } + + shifted_cp = sign_extend32(val, 5); + + r->actual_temp_cp = 2 * NOMINAL_CALIB_CP + shifted_cp; + r->actual_temp_ft = 2 * NOMINAL_CALIB_FT + shifted_ft; + + return 0; +} + +int tegra_soctherm_calculate_tsensor_calibration( + struct tegra_tsensor *sensor, + const struct tsensor_shared_calibration *shared) +{ + const struct tegra_tsensor_group *sensor_group; + u32 val, calib; + s32 actual_tsensor_ft, actual_tsensor_cp; + s32 delta_sens, delta_temp; + s32 mult, div; + s16 therma, thermb; + int err; + + sensor_group = sensor->group; + + err = tegra_fuse_readl(sensor->calib_fuse_offset, &val); + if (err) + return err; + + actual_tsensor_cp = (shared->base_cp * 64) + sign_extend32(val, 12); + val = (val & FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK) + >> FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT; + actual_tsensor_ft = (shared->base_ft * 32) + sign_extend32(val, 12); + + delta_sens = actual_tsensor_ft - actual_tsensor_cp; + delta_temp = shared->actual_temp_ft - shared->actual_temp_cp; + + mult = sensor_group->pdiv * sensor->config->tsample_ate; + div = sensor->config->tsample * sensor_group->pdiv_ate; + + therma = div64_s64_precise((s64)delta_temp * (1LL << 13) * mult, + (s64)delta_sens * div); + thermb = div64_s64_precise( + ((s64)actual_tsensor_ft * shared->actual_temp_cp) - + ((s64)actual_tsensor_cp * shared->actual_temp_ft), + (s64)delta_sens); + + therma = div64_s64_precise((s64)therma * sensor->fuse_corr_alpha, + (s64)1000000LL); + thermb = div64_s64_precise((s64)thermb * sensor->fuse_corr_alpha + + sensor->fuse_corr_beta, + (s64)1000000LL); + calib = ((u16)therma << SENSOR_CONFIG2_THERMA_SHIFT) | + ((u16)thermb << SENSOR_CONFIG2_THERMB_SHIFT); + + sensor->calib = calib; + + return 0; +} + +MODULE_AUTHOR("Wei Ni <wni@nvidia.com>"); +MODULE_DESCRIPTION("Tegra SOCTHERM fuse management"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c new file mode 100644 index 000000000000..6de566d510c7 --- /dev/null +++ b/drivers/thermal/tegra/soctherm.c @@ -0,0 +1,309 @@ +/* + * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * + * Author: + * Mikko Perttunen <mperttunen@nvidia.com> + * + * 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. + * + */ + +#include <linux/bitops.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/reset.h> +#include <linux/thermal.h> + +#include <dt-bindings/thermal/tegra124-soctherm.h> + +#include "soctherm.h" + +#define SENSOR_CONFIG0 0 +#define SENSOR_CONFIG0_STOP BIT(0) +#define SENSOR_CONFIG0_TALL_SHIFT 8 +#define SENSOR_CONFIG0_TCALC_OVER BIT(4) +#define SENSOR_CONFIG0_OVER BIT(3) +#define SENSOR_CONFIG0_CPTR_OVER BIT(2) + +#define SENSOR_CONFIG1 4 +#define SENSOR_CONFIG1_TSAMPLE_SHIFT 0 +#define SENSOR_CONFIG1_TIDDQ_EN_SHIFT 15 +#define SENSOR_CONFIG1_TEN_COUNT_SHIFT 24 +#define SENSOR_CONFIG1_TEMP_ENABLE BIT(31) + +/* + * SENSOR_CONFIG2 is defined in tegra_soctherm.h + * because, it will be used by tegra_soctherm_fuse.c + */ + +#define READBACK_VALUE_MASK 0xff00 +#define READBACK_VALUE_SHIFT 8 +#define READBACK_ADD_HALF BIT(7) +#define READBACK_NEGATE BIT(1) + +/* get val from register(r) mask bits(m) */ +#define REG_GET_MASK(r, m) (((r) & (m)) >> (ffs(m) - 1)) +/* set val(v) to mask bits(m) of register(r) */ +#define REG_SET_MASK(r, m, v) (((r) & ~(m)) | \ + (((v) & (m >> (ffs(m) - 1))) << (ffs(m) - 1))) + +struct tegra_thermctl_zone { + void __iomem *reg; + u32 mask; +}; + +struct tegra_soctherm { + struct reset_control *reset; + struct clk *clock_tsensor; + struct clk *clock_soctherm; + void __iomem *regs; + + struct thermal_zone_device *thermctl_tzs[TEGRA124_SOCTHERM_SENSOR_NUM]; +}; + +static int enable_tsensor(struct tegra_soctherm *tegra, + struct tegra_tsensor *sensor, + const struct tsensor_shared_calibration *shared) +{ + void __iomem *base = tegra->regs + sensor->base; + unsigned int val; + int err; + + err = tegra_soctherm_calculate_tsensor_calibration(sensor, shared); + if (err) + return err; + + val = sensor->config->tall << SENSOR_CONFIG0_TALL_SHIFT; + writel(val, base + SENSOR_CONFIG0); + + val = (sensor->config->tsample - 1) << SENSOR_CONFIG1_TSAMPLE_SHIFT; + val |= sensor->config->tiddq_en << SENSOR_CONFIG1_TIDDQ_EN_SHIFT; + val |= sensor->config->ten_count << SENSOR_CONFIG1_TEN_COUNT_SHIFT; + val |= SENSOR_CONFIG1_TEMP_ENABLE; + writel(val, base + SENSOR_CONFIG1); + + writel(sensor->calib, base + SENSOR_CONFIG2); + + return 0; +} + +/* + * Translate from soctherm readback format to millicelsius. + * The soctherm readback format in bits is as follows: + * TTTTTTTT H______N + * where T's contain the temperature in Celsius, + * H denotes an addition of 0.5 Celsius and N denotes negation + * of the final value. + */ +static int translate_temp(u16 val) +{ + long t; + + t = ((val & READBACK_VALUE_MASK) >> READBACK_VALUE_SHIFT) * 1000; + if (val & READBACK_ADD_HALF) + t += 500; + if (val & READBACK_NEGATE) + t *= -1; + + return t; +} + +static int tegra_thermctl_get_temp(void *data, int *out_temp) +{ + struct tegra_thermctl_zone *zone = data; + u32 val; + + val = readl(zone->reg); + val = REG_GET_MASK(val, zone->mask); + *out_temp = translate_temp(val); + + return 0; +} + +static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = { + .get_temp = tegra_thermctl_get_temp, +}; + +static const struct of_device_id tegra_soctherm_of_match[] = { +#ifdef CONFIG_ARCH_TEGRA_124_SOC + { + .compatible = "nvidia,tegra124-soctherm", + .data = &tegra124_soctherm, + }, +#endif + { }, +}; +MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match); + +static int tegra_soctherm_probe(struct platform_device *pdev) +{ + const struct of_device_id *match; + struct tegra_soctherm *tegra; + struct thermal_zone_device *tz; + struct tsensor_shared_calibration shared_calib; + struct resource *res; + struct tegra_soctherm_soc *soc; + unsigned int i; + int err; + u32 pdiv, hotspot; + + match = of_match_node(tegra_soctherm_of_match, pdev->dev.of_node); + if (!match) + return -ENODEV; + + soc = (struct tegra_soctherm_soc *)match->data; + if (soc->num_ttgs > TEGRA124_SOCTHERM_SENSOR_NUM) + return -EINVAL; + + tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL); + if (!tegra) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + tegra->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(tegra->regs)) + return PTR_ERR(tegra->regs); + + tegra->reset = devm_reset_control_get(&pdev->dev, "soctherm"); + if (IS_ERR(tegra->reset)) { + dev_err(&pdev->dev, "can't get soctherm reset\n"); + return PTR_ERR(tegra->reset); + } + + tegra->clock_tsensor = devm_clk_get(&pdev->dev, "tsensor"); + if (IS_ERR(tegra->clock_tsensor)) { + dev_err(&pdev->dev, "can't get tsensor clock\n"); + return PTR_ERR(tegra->clock_tsensor); + } + + tegra->clock_soctherm = devm_clk_get(&pdev->dev, "soctherm"); + if (IS_ERR(tegra->clock_soctherm)) { + dev_err(&pdev->dev, "can't get soctherm clock\n"); + return PTR_ERR(tegra->clock_soctherm); + } + + reset_control_assert(tegra->reset); + + err = clk_prepare_enable(tegra->clock_soctherm); + if (err) + return err; + + err = clk_prepare_enable(tegra->clock_tsensor); + if (err) { + clk_disable_unprepare(tegra->clock_soctherm); + return err; + } + + reset_control_deassert(tegra->reset); + + /* Initialize raw sensors */ + + err = tegra_soctherm_calculate_shared_calibration(soc->tfuse, + &shared_calib); + if (err) + goto disable_clocks; + + for (i = 0; i < soc->num_tsensors; ++i) { + err = enable_tsensor(tegra, &soc->tsensors[i], &shared_calib); + if (err) + goto disable_clocks; + } + + + /* program pdiv and hotspot offsets per THERM */ + pdiv = readl(tegra->regs + SENSOR_PDIV); + hotspot = readl(tegra->regs + SENSOR_HOTSPOT_OFF); + for (i = 0; i < soc->num_ttgs; ++i) { + pdiv = REG_SET_MASK(pdiv, soc->ttgs[i]->pdiv_mask, + soc->ttgs[i]->pdiv); + if (soc->ttgs[i]->id == TEGRA124_SOCTHERM_SENSOR_PLLX) + continue; + hotspot = REG_SET_MASK(hotspot, + soc->ttgs[i]->pllx_hotspot_mask, + soc->ttgs[i]->pllx_hotspot_diff); + } + writel(pdiv, tegra->regs + SENSOR_PDIV); + writel(hotspot, tegra->regs + SENSOR_HOTSPOT_OFF); + + /* Initialize thermctl sensors */ + + for (i = 0; i < soc->num_ttgs; ++i) { + struct tegra_thermctl_zone *zone = + devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL); + if (!zone) { + err = -ENOMEM; + goto unregister_tzs; + } + + zone->reg = tegra->regs + soc->ttgs[i]->sensor_temp_offset; + zone->mask = soc->ttgs[i]->sensor_temp_mask; + + tz = thermal_zone_of_sensor_register(&pdev->dev, + soc->ttgs[i]->id, zone, + &tegra_of_thermal_ops); + if (IS_ERR(tz)) { + err = PTR_ERR(tz); + dev_err(&pdev->dev, "failed to register sensor: %d\n", + err); + goto unregister_tzs; + } + + tegra->thermctl_tzs[soc->ttgs[i]->id] = tz; + } + + return 0; + +unregister_tzs: + while (i--) + thermal_zone_of_sensor_unregister(&pdev->dev, + tegra->thermctl_tzs[i]); + +disable_clocks: + clk_disable_unprepare(tegra->clock_tsensor); + clk_disable_unprepare(tegra->clock_soctherm); + + return err; +} + +static int tegra_soctherm_remove(struct platform_device *pdev) +{ + struct tegra_soctherm *tegra = platform_get_drvdata(pdev); + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) { + thermal_zone_of_sensor_unregister(&pdev->dev, + tegra->thermctl_tzs[i]); + } + + clk_disable_unprepare(tegra->clock_tsensor); + clk_disable_unprepare(tegra->clock_soctherm); + + return 0; +} + +static struct platform_driver tegra_soctherm_driver = { + .probe = tegra_soctherm_probe, + .remove = tegra_soctherm_remove, + .driver = { + .name = "tegra_soctherm", + .of_match_table = tegra_soctherm_of_match, + }, +}; +module_platform_driver(tegra_soctherm_driver); + +MODULE_AUTHOR("Mikko Perttunen <mperttunen@nvidia.com>"); +MODULE_DESCRIPTION("NVIDIA Tegra SOCTHERM thermal management driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/tegra/soctherm.h b/drivers/thermal/tegra/soctherm.h new file mode 100644 index 000000000000..1ac66cafb392 --- /dev/null +++ b/drivers/thermal/tegra/soctherm.h @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved. + * + * 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. + * + */ + +#ifndef __DRIVERS_THERMAL_TEGRA_SOCTHERM_H +#define __DRIVERS_THERMAL_TEGRA_SOCTHERM_H + +#define SENSOR_CONFIG2 8 +#define SENSOR_CONFIG2_THERMA_SHIFT 16 +#define SENSOR_CONFIG2_THERMB_SHIFT 0 + +#define SENSOR_PDIV 0x1c0 +#define SENSOR_PDIV_CPU_MASK (0xf << 12) +#define SENSOR_PDIV_GPU_MASK (0xf << 8) +#define SENSOR_PDIV_MEM_MASK (0xf << 4) +#define SENSOR_PDIV_PLLX_MASK (0xf << 0) + +#define SENSOR_HOTSPOT_OFF 0x1c4 +#define SENSOR_HOTSPOT_CPU_MASK (0xff << 16) +#define SENSOR_HOTSPOT_GPU_MASK (0xff << 8) +#define SENSOR_HOTSPOT_MEM_MASK (0xff << 0) + +#define SENSOR_TEMP1 0x1c8 +#define SENSOR_TEMP1_CPU_TEMP_MASK (0xffff << 16) +#define SENSOR_TEMP1_GPU_TEMP_MASK 0xffff +#define SENSOR_TEMP2 0x1cc +#define SENSOR_TEMP2_MEM_TEMP_MASK (0xffff << 16) +#define SENSOR_TEMP2_PLLX_TEMP_MASK 0xffff + +/** + * struct tegra_tsensor_group - SOC_THERM sensor group data + * @name: short name of the temperature sensor group + * @id: numeric ID of the temperature sensor group + * @sensor_temp_offset: offset of the SENSOR_TEMP* register + * @sensor_temp_mask: bit mask for this sensor group in SENSOR_TEMP* register + * @pdiv: the sensor count post-divider to use during runtime + * @pdiv_ate: the sensor count post-divider used during automated test + * @pdiv_mask: register bitfield mask for the PDIV field for this sensor + * @pllx_hotspot_diff: hotspot offset from the PLLX sensor, must be 0 for + PLLX sensor group + * @pllx_hotspot_mask: register bitfield mask for the HOTSPOT field + */ +struct tegra_tsensor_group { + const char *name; + u8 id; + u16 sensor_temp_offset; + u32 sensor_temp_mask; + u32 pdiv, pdiv_ate, pdiv_mask; + u32 pllx_hotspot_diff, pllx_hotspot_mask; +}; + +struct tegra_tsensor_configuration { + u32 tall, tiddq_en, ten_count, pdiv, pdiv_ate, tsample, tsample_ate; +}; + +struct tegra_tsensor { + const char *name; + u32 base; + const struct tegra_tsensor_configuration *config; + u32 calib_fuse_offset; + /* + * Correction values used to modify values read from + * calibration fuses + */ + s32 fuse_corr_alpha, fuse_corr_beta; + u32 calib; + const struct tegra_tsensor_group *group; +}; + +struct tegra_soctherm_fuse { + u32 fuse_base_cp_mask, fuse_base_cp_shift; + u32 fuse_base_ft_mask, fuse_base_ft_shift; + u32 fuse_shift_ft_mask, fuse_shift_ft_shift; + u32 fuse_spare_realignment; +}; + +struct tsensor_shared_calibration { + u32 base_cp, base_ft; + u32 actual_temp_cp, actual_temp_ft; +}; + +struct tegra_soctherm_soc { + struct tegra_tsensor *tsensors; + unsigned int num_tsensors; + const struct tegra_tsensor_group **ttgs; + unsigned int num_ttgs; + const struct tegra_soctherm_fuse *tfuse; +}; + +int tegra_soctherm_calculate_shared_calibration( + const struct tegra_soctherm_fuse *tfuse, + struct tsensor_shared_calibration *shared); +int tegra_soctherm_calculate_tsensor_calibration( + struct tegra_tsensor *sensor, + const struct tsensor_shared_calibration *shared); + +#ifdef CONFIG_ARCH_TEGRA_124_SOC +extern struct tegra_soctherm_soc tegra124_soctherm; +#endif + +#endif + diff --git a/drivers/thermal/tegra/tegra-soctherm.c b/drivers/thermal/tegra/tegra-soctherm.c deleted file mode 100644 index 6c3d508929d7..000000000000 --- a/drivers/thermal/tegra/tegra-soctherm.c +++ /dev/null @@ -1,580 +0,0 @@ -/* - * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. - * - * Author: - * Mikko Perttunen <mperttunen@nvidia.com> - * - * 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. - * - */ - -#include <linux/bitops.h> -#include <linux/clk.h> -#include <linux/delay.h> -#include <linux/err.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/reset.h> -#include <linux/thermal.h> - -#include <soc/tegra/fuse.h> -#include <dt-bindings/thermal/tegra124-soctherm.h> - -#define SENSOR_CONFIG0 0 -#define SENSOR_CONFIG0_STOP BIT(0) -#define SENSOR_CONFIG0_TALL_SHIFT 8 -#define SENSOR_CONFIG0_TCALC_OVER BIT(4) -#define SENSOR_CONFIG0_OVER BIT(3) -#define SENSOR_CONFIG0_CPTR_OVER BIT(2) - -#define SENSOR_CONFIG1 4 -#define SENSOR_CONFIG1_TSAMPLE_SHIFT 0 -#define SENSOR_CONFIG1_TIDDQ_EN_SHIFT 15 -#define SENSOR_CONFIG1_TEN_COUNT_SHIFT 24 -#define SENSOR_CONFIG1_TEMP_ENABLE BIT(31) - -#define SENSOR_CONFIG2 8 -#define SENSOR_CONFIG2_THERMA_SHIFT 16 -#define SENSOR_CONFIG2_THERMB_SHIFT 0 - -#define SENSOR_PDIV 0x1c0 -#define SENSOR_PDIV_CPU_MASK (0xf << 12) -#define SENSOR_PDIV_GPU_MASK (0xf << 8) -#define SENSOR_PDIV_MEM_MASK (0xf << 4) -#define SENSOR_PDIV_PLLX_MASK (0xf << 0) - -#define SENSOR_HOTSPOT_OFF 0x1c4 -#define SENSOR_HOTSPOT_CPU_MASK (0xff << 16) -#define SENSOR_HOTSPOT_GPU_MASK (0xff << 8) -#define SENSOR_HOTSPOT_MEM_MASK (0xff << 0) - -#define SENSOR_TEMP1 0x1c8 -#define SENSOR_TEMP1_CPU_TEMP_MASK (0xffff << 16) -#define SENSOR_TEMP1_GPU_TEMP_MASK 0xffff -#define SENSOR_TEMP2 0x1cc -#define SENSOR_TEMP2_MEM_TEMP_MASK (0xffff << 16) -#define SENSOR_TEMP2_PLLX_TEMP_MASK 0xffff - -#define READBACK_VALUE_MASK 0xff00 -#define READBACK_VALUE_SHIFT 8 -#define READBACK_ADD_HALF BIT(7) -#define READBACK_NEGATE BIT(1) - -#define FUSE_TSENSOR8_CALIB 0x180 -#define FUSE_SPARE_REALIGNMENT_REG_0 0x1fc - -#define FUSE_TSENSOR_CALIB_CP_TS_BASE_MASK 0x1fff -#define FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK (0x1fff << 13) -#define FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT 13 - -#define FUSE_TSENSOR8_CALIB_CP_TS_BASE_MASK 0x3ff -#define FUSE_TSENSOR8_CALIB_FT_TS_BASE_MASK (0x7ff << 10) -#define FUSE_TSENSOR8_CALIB_FT_TS_BASE_SHIFT 10 - -#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_CP_MASK 0x3f -#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_MASK (0x1f << 21) -#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_SHIFT 21 - -#define NOMINAL_CALIB_FT_T124 105 -#define NOMINAL_CALIB_CP_T124 25 - -/* get val from register(r) mask bits(m) */ -#define REG_GET_MASK(r, m) (((r) & (m)) >> (ffs(m) - 1)) -/* set val(v) to mask bits(m) of register(r) */ -#define REG_SET_MASK(r, m, v) (((r) & ~(m)) | \ - (((v) & (m >> (ffs(m) - 1))) << (ffs(m) - 1))) - -/** - * struct tegra_tsensor_group - SOC_THERM sensor group data - * @name: short name of the temperature sensor group - * @id: numeric ID of the temperature sensor group - * @sensor_temp_offset: offset of the SENSOR_TEMP* register - * @sensor_temp_mask: bit mask for this sensor group in SENSOR_TEMP* register - * @pdiv: the sensor count post-divider to use during runtime - * @pdiv_ate: the sensor count post-divider used during automated test - * @pdiv_mask: register bitfield mask for the PDIV field for this sensor - * @pllx_hotspot_diff: hotspot offset from the PLLX sensor, must be 0 for - PLLX sensor group - * @pllx_hotspot_mask: register bitfield mask for the HOTSPOT field - */ -struct tegra_tsensor_group { - const char *name; - u8 id; - u16 sensor_temp_offset; - u32 sensor_temp_mask; - u32 pdiv, pdiv_ate, pdiv_mask; - u32 pllx_hotspot_diff, pllx_hotspot_mask; -}; - -struct tegra_tsensor_configuration { - u32 tall, tiddq_en, ten_count, tsample, tsample_ate; -}; - -struct tegra_tsensor { - const struct tegra_tsensor_configuration *config; - u32 base, calib_fuse_offset; - /* Correction values used to modify values read from calibration fuses */ - s32 fuse_corr_alpha, fuse_corr_beta; - const struct tegra_tsensor_group *group; -}; - -struct tegra_thermctl_zone { - void __iomem *reg; - u32 mask; -}; - -static const struct tegra_tsensor_configuration t124_tsensor_config = { - .tall = 16300, - .tiddq_en = 1, - .ten_count = 1, - .tsample = 120, - .tsample_ate = 480, -}; - -static const struct tegra_tsensor_group tegra124_tsensor_group_cpu = { - .id = TEGRA124_SOCTHERM_SENSOR_CPU, - .name = "cpu", - .sensor_temp_offset = SENSOR_TEMP1, - .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK, - .pdiv = 8, - .pdiv_ate = 8, - .pdiv_mask = SENSOR_PDIV_CPU_MASK, - .pllx_hotspot_diff = 10, - .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK, -}; - -static const struct tegra_tsensor_group tegra124_tsensor_group_gpu = { - .id = TEGRA124_SOCTHERM_SENSOR_GPU, - .name = "gpu", - .sensor_temp_offset = SENSOR_TEMP1, - .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK, - .pdiv = 8, - .pdiv_ate = 8, - .pdiv_mask = SENSOR_PDIV_GPU_MASK, - .pllx_hotspot_diff = 5, - .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK, -}; - -static const struct tegra_tsensor_group tegra124_tsensor_group_pll = { - .id = TEGRA124_SOCTHERM_SENSOR_PLLX, - .name = "pll", - .sensor_temp_offset = SENSOR_TEMP2, - .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK, - .pdiv = 8, - .pdiv_ate = 8, - .pdiv_mask = SENSOR_PDIV_PLLX_MASK, - .pllx_hotspot_diff = 0, - .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK, -}; - -static const struct tegra_tsensor_group tegra124_tsensor_group_mem = { - .id = TEGRA124_SOCTHERM_SENSOR_MEM, - .name = "mem", - .sensor_temp_offset = SENSOR_TEMP2, - .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK, - .pdiv = 8, - .pdiv_ate = 8, - .pdiv_mask = SENSOR_PDIV_MEM_MASK, -}; - -static const struct tegra_tsensor_group * -tegra124_tsensor_groups[TEGRA124_SOCTHERM_SENSOR_NUM] = { - &tegra124_tsensor_group_cpu, - &tegra124_tsensor_group_gpu, - &tegra124_tsensor_group_pll, - &tegra124_tsensor_group_mem, -}; - -static const struct tegra_tsensor t124_tsensors[] = { - { - .config = &t124_tsensor_config, - .base = 0xc0, - .calib_fuse_offset = 0x098, - .fuse_corr_alpha = 1135400, - .fuse_corr_beta = -6266900, - .group = &tegra124_tsensor_group_cpu, - }, - { - .config = &t124_tsensor_config, - .base = 0xe0, - .calib_fuse_offset = 0x084, - .fuse_corr_alpha = 1122220, - .fuse_corr_beta = -5700700, - .group = &tegra124_tsensor_group_cpu, - }, - { - .config = &t124_tsensor_config, - .base = 0x100, - .calib_fuse_offset = 0x088, - .fuse_corr_alpha = 1127000, - .fuse_corr_beta = -6768200, - .group = &tegra124_tsensor_group_cpu, - }, - { - .config = &t124_tsensor_config, - .base = 0x120, - .calib_fuse_offset = 0x12c, - .fuse_corr_alpha = 1110900, - .fuse_corr_beta = -6232000, - .group = &tegra124_tsensor_group_cpu, - }, - { - .config = &t124_tsensor_config, - .base = 0x140, - .calib_fuse_offset = 0x158, - .fuse_corr_alpha = 1122300, - .fuse_corr_beta = -5936400, - .group = &tegra124_tsensor_group_mem, - }, - { - .config = &t124_tsensor_config, - .base = 0x160, - .calib_fuse_offset = 0x15c, - .fuse_corr_alpha = 1145700, - .fuse_corr_beta = -7124600, - .group = &tegra124_tsensor_group_mem, - }, - { - .config = &t124_tsensor_config, - .base = 0x180, - .calib_fuse_offset = 0x154, - .fuse_corr_alpha = 1120100, - .fuse_corr_beta = -6000500, - .group = &tegra124_tsensor_group_gpu, - }, - { - .config = &t124_tsensor_config, - .base = 0x1a0, - .calib_fuse_offset = 0x160, - .fuse_corr_alpha = 1106500, - .fuse_corr_beta = -6729300, - .group = &tegra124_tsensor_group_pll, - }, -}; - -struct tegra_soctherm { - struct reset_control *reset; - struct clk *clock_tsensor; - struct clk *clock_soctherm; - void __iomem *regs; - - struct thermal_zone_device *thermctl_tzs[TEGRA124_SOCTHERM_SENSOR_NUM]; -}; - -struct tsensor_shared_calibration { - u32 base_cp, base_ft; - u32 actual_temp_cp, actual_temp_ft; -}; - -static int calculate_shared_calibration(struct tsensor_shared_calibration *r) -{ - u32 val, shifted_cp, shifted_ft; - int err; - - err = tegra_fuse_readl(FUSE_TSENSOR8_CALIB, &val); - if (err) - return err; - r->base_cp = val & FUSE_TSENSOR8_CALIB_CP_TS_BASE_MASK; - r->base_ft = (val & FUSE_TSENSOR8_CALIB_FT_TS_BASE_MASK) - >> FUSE_TSENSOR8_CALIB_FT_TS_BASE_SHIFT; - val = ((val & FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_MASK) - >> FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_SHIFT); - shifted_ft = sign_extend32(val, 4); - - err = tegra_fuse_readl(FUSE_SPARE_REALIGNMENT_REG_0, &val); - if (err) - return err; - shifted_cp = sign_extend32(val, 5); - - r->actual_temp_cp = 2 * NOMINAL_CALIB_CP_T124 + shifted_cp; - r->actual_temp_ft = 2 * NOMINAL_CALIB_FT_T124 + shifted_ft; - - return 0; -} - -static s64 div64_s64_precise(s64 a, s64 b) -{ - s64 r, al; - - /* Scale up for increased precision division */ - al = a << 16; - - r = div64_s64(al * 2 + 1, 2 * b); - return r >> 16; -} - -static int -calculate_tsensor_calibration(const struct tegra_tsensor *sensor, - const struct tsensor_shared_calibration *shared, - u32 *calib) -{ - u32 val; - s32 actual_tsensor_ft, actual_tsensor_cp, delta_sens, delta_temp, - mult, div; - s16 therma, thermb; - s64 tmp; - int err; - - err = tegra_fuse_readl(sensor->calib_fuse_offset, &val); - if (err) - return err; - - actual_tsensor_cp = (shared->base_cp * 64) + sign_extend32(val, 12); - val = (val & FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK) - >> FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT; - actual_tsensor_ft = (shared->base_ft * 32) + sign_extend32(val, 12); - - delta_sens = actual_tsensor_ft - actual_tsensor_cp; - delta_temp = shared->actual_temp_ft - shared->actual_temp_cp; - - mult = sensor->group->pdiv * sensor->config->tsample_ate; - div = sensor->config->tsample * sensor->group->pdiv_ate; - - therma = div64_s64_precise((s64) delta_temp * (1LL << 13) * mult, - (s64) delta_sens * div); - - tmp = (s64)actual_tsensor_ft * shared->actual_temp_cp - - (s64)actual_tsensor_cp * shared->actual_temp_ft; - thermb = div64_s64_precise(tmp, (s64)delta_sens); - - therma = div64_s64_precise((s64)therma * sensor->fuse_corr_alpha, - (s64)1000000LL); - thermb = div64_s64_precise((s64)thermb * sensor->fuse_corr_alpha + - sensor->fuse_corr_beta, (s64)1000000LL); - - *calib = ((u16)therma << SENSOR_CONFIG2_THERMA_SHIFT) | - ((u16)thermb << SENSOR_CONFIG2_THERMB_SHIFT); - - return 0; -} - -static int enable_tsensor(struct tegra_soctherm *tegra, - const struct tegra_tsensor *sensor, - const struct tsensor_shared_calibration *shared) -{ - void __iomem *base = tegra->regs + sensor->base; - unsigned int val; - u32 calib; - int err; - - err = calculate_tsensor_calibration(sensor, shared, &calib); - if (err) - return err; - - val = sensor->config->tall << SENSOR_CONFIG0_TALL_SHIFT; - writel(val, base + SENSOR_CONFIG0); - - val = (sensor->config->tsample - 1) << SENSOR_CONFIG1_TSAMPLE_SHIFT; - val |= sensor->config->tiddq_en << SENSOR_CONFIG1_TIDDQ_EN_SHIFT; - val |= sensor->config->ten_count << SENSOR_CONFIG1_TEN_COUNT_SHIFT; - val |= SENSOR_CONFIG1_TEMP_ENABLE; - writel(val, base + SENSOR_CONFIG1); - - writel(calib, base + SENSOR_CONFIG2); - - return 0; -} - -/* - * Translate from soctherm readback format to millicelsius. - * The soctherm readback format in bits is as follows: - * TTTTTTTT H______N - * where T's contain the temperature in Celsius, - * H denotes an addition of 0.5 Celsius and N denotes negation - * of the final value. - */ -static int translate_temp(u16 val) -{ - long t; - - t = ((val & READBACK_VALUE_MASK) >> READBACK_VALUE_SHIFT) * 1000; - if (val & READBACK_ADD_HALF) - t += 500; - if (val & READBACK_NEGATE) - t *= -1; - - return t; -} - -static int tegra_thermctl_get_temp(void *data, int *out_temp) -{ - struct tegra_thermctl_zone *zone = data; - u32 val; - - val = readl(zone->reg); - val = REG_GET_MASK(val, zone->mask); - *out_temp = translate_temp(val); - - return 0; -} - -static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = { - .get_temp = tegra_thermctl_get_temp, -}; - -static const struct of_device_id tegra_soctherm_of_match[] = { - { .compatible = "nvidia,tegra124-soctherm" }, - { }, -}; -MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match); - -static int tegra_soctherm_probe(struct platform_device *pdev) -{ - struct tegra_soctherm *tegra; - struct thermal_zone_device *tz; - struct tsensor_shared_calibration shared_calib; - struct resource *res; - unsigned int i; - int err; - u32 pdiv, hotspot; - - const struct tegra_tsensor *tsensors = t124_tsensors; - const struct tegra_tsensor_group **ttgs = tegra124_tsensor_groups; - - tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL); - if (!tegra) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - tegra->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(tegra->regs)) - return PTR_ERR(tegra->regs); - - tegra->reset = devm_reset_control_get(&pdev->dev, "soctherm"); - if (IS_ERR(tegra->reset)) { - dev_err(&pdev->dev, "can't get soctherm reset\n"); - return PTR_ERR(tegra->reset); - } - - tegra->clock_tsensor = devm_clk_get(&pdev->dev, "tsensor"); - if (IS_ERR(tegra->clock_tsensor)) { - dev_err(&pdev->dev, "can't get tsensor clock\n"); - return PTR_ERR(tegra->clock_tsensor); - } - - tegra->clock_soctherm = devm_clk_get(&pdev->dev, "soctherm"); - if (IS_ERR(tegra->clock_soctherm)) { - dev_err(&pdev->dev, "can't get soctherm clock\n"); - return PTR_ERR(tegra->clock_soctherm); - } - - reset_control_assert(tegra->reset); - - err = clk_prepare_enable(tegra->clock_soctherm); - if (err) - return err; - - err = clk_prepare_enable(tegra->clock_tsensor); - if (err) { - clk_disable_unprepare(tegra->clock_soctherm); - return err; - } - - reset_control_deassert(tegra->reset); - - /* Initialize raw sensors */ - - err = calculate_shared_calibration(&shared_calib); - if (err) - goto disable_clocks; - - for (i = 0; i < ARRAY_SIZE(t124_tsensors); ++i) { - err = enable_tsensor(tegra, tsensors + i, &shared_calib); - if (err) - goto disable_clocks; - } - - - /* program pdiv and hotspot offsets per THERM */ - pdiv = readl(tegra->regs + SENSOR_PDIV); - hotspot = readl(tegra->regs + SENSOR_HOTSPOT_OFF); - for (i = 0; i < TEGRA124_SOCTHERM_SENSOR_NUM; ++i) { - pdiv = REG_SET_MASK(pdiv, ttgs[i]->pdiv_mask, - ttgs[i]->pdiv); - if (ttgs[i]->id != TEGRA124_SOCTHERM_SENSOR_PLLX) - hotspot = REG_SET_MASK(hotspot, - ttgs[i]->pllx_hotspot_mask, - ttgs[i]->pllx_hotspot_diff); - } - writel(pdiv, tegra->regs + SENSOR_PDIV); - writel(hotspot, tegra->regs + SENSOR_HOTSPOT_OFF); - - /* Initialize thermctl sensors */ - - for (i = 0; i < TEGRA124_SOCTHERM_SENSOR_NUM; ++i) { - struct tegra_thermctl_zone *zone = - devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL); - if (!zone) { - err = -ENOMEM; - goto unregister_tzs; - } - - zone->reg = tegra->regs + ttgs[i]->sensor_temp_offset; - zone->mask = ttgs[i]->sensor_temp_mask; - - tz = thermal_zone_of_sensor_register(&pdev->dev, - ttgs[i]->id, zone, - &tegra_of_thermal_ops); - if (IS_ERR(tz)) { - err = PTR_ERR(tz); - dev_err(&pdev->dev, "failed to register sensor: %d\n", - err); - goto unregister_tzs; - } - - tegra->thermctl_tzs[ttgs[i]->id] = tz; - } - - return 0; - -unregister_tzs: - while (i--) - thermal_zone_of_sensor_unregister(&pdev->dev, - tegra->thermctl_tzs[i]); - -disable_clocks: - clk_disable_unprepare(tegra->clock_tsensor); - clk_disable_unprepare(tegra->clock_soctherm); - - return err; -} - -static int tegra_soctherm_remove(struct platform_device *pdev) -{ - struct tegra_soctherm *tegra = platform_get_drvdata(pdev); - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) { - thermal_zone_of_sensor_unregister(&pdev->dev, - tegra->thermctl_tzs[i]); - } - - clk_disable_unprepare(tegra->clock_tsensor); - clk_disable_unprepare(tegra->clock_soctherm); - - return 0; -} - -static struct platform_driver tegra_soctherm_driver = { - .probe = tegra_soctherm_probe, - .remove = tegra_soctherm_remove, - .driver = { - .name = "tegra-soctherm", - .of_match_table = tegra_soctherm_of_match, - }, -}; -module_platform_driver(tegra_soctherm_driver); - -MODULE_AUTHOR("Mikko Perttunen <mperttunen@nvidia.com>"); -MODULE_DESCRIPTION("NVIDIA Tegra SOCTHERM thermal management driver"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/tegra/tegra124-soctherm.c b/drivers/thermal/tegra/tegra124-soctherm.c new file mode 100644 index 000000000000..db68f8233b0c --- /dev/null +++ b/drivers/thermal/tegra/tegra124-soctherm.c @@ -0,0 +1,180 @@ +/* + * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved. + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <dt-bindings/thermal/tegra124-soctherm.h> + +#include "soctherm.h" + +static const struct tegra_tsensor_configuration t124_tsensor_config = { + .tall = 16300, + .tiddq_en = 1, + .ten_count = 1, + .tsample = 120, + .tsample_ate = 480, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_cpu = { + .id = TEGRA124_SOCTHERM_SENSOR_CPU, + .name = "cpu", + .sensor_temp_offset = SENSOR_TEMP1, + .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_CPU_MASK, + .pllx_hotspot_diff = 10, + .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_gpu = { + .id = TEGRA124_SOCTHERM_SENSOR_GPU, + .name = "gpu", + .sensor_temp_offset = SENSOR_TEMP1, + .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_GPU_MASK, + .pllx_hotspot_diff = 5, + .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_pll = { + .id = TEGRA124_SOCTHERM_SENSOR_PLLX, + .name = "pll", + .sensor_temp_offset = SENSOR_TEMP2, + .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_PLLX_MASK, +}; + +static const struct tegra_tsensor_group tegra124_tsensor_group_mem = { + .id = TEGRA124_SOCTHERM_SENSOR_MEM, + .name = "mem", + .sensor_temp_offset = SENSOR_TEMP2, + .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK, + .pdiv = 8, + .pdiv_ate = 8, + .pdiv_mask = SENSOR_PDIV_MEM_MASK, + .pllx_hotspot_diff = 0, + .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK, +}; + +static const struct tegra_tsensor_group * +tegra124_tsensor_groups[] = { + &tegra124_tsensor_group_cpu, + &tegra124_tsensor_group_gpu, + &tegra124_tsensor_group_pll, + &tegra124_tsensor_group_mem, +}; + +static struct tegra_tsensor tegra124_tsensors[] = { + { + .name = "cpu0", + .base = 0xc0, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x098, + .fuse_corr_alpha = 1135400, + .fuse_corr_beta = -6266900, + .group = &tegra124_tsensor_group_cpu, + }, + { + .name = "cpu1", + .base = 0xe0, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x084, + .fuse_corr_alpha = 1122220, + .fuse_corr_beta = -5700700, + .group = &tegra124_tsensor_group_cpu, + }, + { + .name = "cpu2", + .base = 0x100, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x088, + .fuse_corr_alpha = 1127000, + .fuse_corr_beta = -6768200, + .group = &tegra124_tsensor_group_cpu, + }, + { + .name = "cpu3", + .base = 0x120, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x12c, + .fuse_corr_alpha = 1110900, + .fuse_corr_beta = -6232000, + .group = &tegra124_tsensor_group_cpu, + }, + { + .name = "mem0", + .base = 0x140, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x158, + .fuse_corr_alpha = 1122300, + .fuse_corr_beta = -5936400, + .group = &tegra124_tsensor_group_mem, + }, + { + .name = "mem1", + .base = 0x160, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x15c, + .fuse_corr_alpha = 1145700, + .fuse_corr_beta = -7124600, + .group = &tegra124_tsensor_group_mem, + }, + { + .name = "gpu", + .base = 0x180, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x154, + .fuse_corr_alpha = 1120100, + .fuse_corr_beta = -6000500, + .group = &tegra124_tsensor_group_gpu, + }, + { + .name = "pllx", + .base = 0x1a0, + .config = &t124_tsensor_config, + .calib_fuse_offset = 0x160, + .fuse_corr_alpha = 1106500, + .fuse_corr_beta = -6729300, + .group = &tegra124_tsensor_group_pll, + }, +}; + +/* + * Mask/shift bits in FUSE_TSENSOR_COMMON and + * FUSE_TSENSOR_COMMON, which are described in + * tegra_soctherm_fuse.c + */ +static const struct tegra_soctherm_fuse tegra124_soctherm_fuse = { + .fuse_base_cp_mask = 0x3ff, + .fuse_base_cp_shift = 0, + .fuse_base_ft_mask = 0x7ff << 10, + .fuse_base_ft_shift = 10, + .fuse_shift_ft_mask = 0x1f << 21, + .fuse_shift_ft_shift = 21, + .fuse_spare_realignment = 0x1fc, +}; + +struct tegra_soctherm_soc tegra124_soctherm = { + .tsensors = tegra124_tsensors, + .num_tsensors = ARRAY_SIZE(tegra124_tsensors), + .ttgs = tegra124_tsensor_groups, + .num_ttgs = ARRAY_SIZE(tegra124_tsensor_groups), + .tfuse = &tegra124_soctherm_fuse, +}; -- 1.9.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
end of thread, other threads:[~2016-01-15 19:34 UTC | newest] Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2016-01-15 10:24 [PATCH V2 00/11] Add T210 support in Tegra soctherm Wei Ni 2016-01-15 10:24 ` Wei Ni 2016-01-15 10:24 ` [PATCH V2 01/11] thermal: tegra: move tegra thermal files into tegra directory Wei Ni 2016-01-15 10:24 ` Wei Ni [not found] ` <1452853499-5115-2-git-send-email-wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> 2016-01-15 15:53 ` kbuild test robot 2016-01-15 15:53 ` kbuild test robot 2016-01-15 19:33 ` kbuild test robot 2016-01-15 19:33 ` kbuild test robot [not found] ` <1452853499-5115-1-git-send-email-wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> 2016-01-15 10:24 ` [PATCH V2 02/11] thermal: tegra: combine sensor group-related data Wei Ni 2016-01-15 10:24 ` Wei Ni 2016-01-15 10:24 ` [PATCH V2 03/11] thermal: tegra: get rid of PDIV/HOTSPOT hack Wei Ni 2016-01-15 10:24 ` Wei Ni 2016-01-15 10:24 ` [PATCH V2 04/11] thermal: tegra: split tegra_soctherm driver Wei Ni 2016-01-15 10:24 ` Wei Ni
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