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[PATCH v7 0/8] Add PWM and IIO timer drivers for STM32

by Benjamin Gaignard

version 7: - rebase on v4.10-rc2 - remove iio_device code from driver and keep only the trigger part version 6: - rename stm32-gptimer in stm32-timers. - change "st,stm32-gptimer" compatible to "st,stm32-timers". - modify "st,breakinput" parameter in pwm part. - split DT patch in 2 version 5: - fix comments done on version 4 - rebased on kernel 4.9-rc8 - change nodes names and re-order then by addresses version 4: - fix comments done on version 3 - don't use interrupts anymore in IIO timer - detect hardware capabilities at probe time to simplify binding version 3: - no change on mfd and pwm divers patches - add cross reference between bindings - change compatible to "st,stm32-timer-trigger" - fix attributes access rights - use string instead of int for master_mode and slave_mode - document device attributes in sysfs-bus-iio-timer-stm32 - update DT with the new compatible version 2: - keep only one compatible per driver - use DT parameters to describe hardware block configuration: - pwm channels, complementary output, counter size, break input - triggers accepted and create by IIO timers - change DT to limite use of reference to the node - interrupt is now in IIO timer driver - rename stm32-mfd-timer to stm32-timers (for general purpose timer) The following patches enable PWM and IIO Timer features for STM32 platforms. Those two features are mixed into the registers of the same hardware block (named general purpose timer) which lead to introduce a multifunctions driver on the top of them to be able to share the registers. In STM32f4 14 instances of timer hardware block exist, even if they all have the same register mapping they could have a different number of pwm channels and/or different triggers capabilities. We use various parameters in DT to describe the differences between hardware blocks The MFD (stm32-timers.c) takes care of clock and register mapping by using regmap. stm32_timers structure is provided to its sub-node to share those information. PWM driver is implemented into pwm-stm32.c. Depending of the instance we may have up to 4 channels, sometime with complementary outputs or 32 bits counter instead of 16 bits. Some hardware blocks may also have a break input function which allows to stop pwm depending of a level, defined in devicetree, on an external pin. IIO timer driver (stm32-timer-trigger.c and stm32-timer-trigger.h) define a list of hardware triggers usable by hardware blocks like ADC, DAC or other timers. The matrix of possible connections between blocks is quite complex so we use trigger names and is_stm32_iio_timer_trigger() function to be sure that triggers are valid and configure the IPs. At run time IIO timer hardware blocks can configure (through "master_mode" IIO device attribute) which internal signal (counter enable, reset, comparison block, etc...) is used to generate the trigger. Benjamin Gaignard (8): MFD: add bindings for STM32 Timers driver MFD: add STM32 Timers driver PWM: add pwm-stm32 DT bindings PWM: add PWM driver for STM32 plaftorm IIO: add bindings for STM32 timer trigger driver IIO: add STM32 timer trigger driver ARM: dts: stm32: add Timers driver for stm32f429 MCU ARM: dts: stm32: Enable pwm1 and pwm3 for stm32f469-disco .../ABI/testing/sysfs-bus-iio-timer-stm32 | 29 ++ .../bindings/iio/timer/stm32-timer-trigger.txt | 23 ++ .../devicetree/bindings/mfd/stm32-timers.txt | 46 +++ .../devicetree/bindings/pwm/pwm-stm32.txt | 33 ++ arch/arm/boot/dts/stm32f429.dtsi | 275 +++++++++++++ arch/arm/boot/dts/stm32f469-disco.dts | 28 ++ drivers/iio/Kconfig | 1 - drivers/iio/trigger/Kconfig | 10 + drivers/iio/trigger/Makefile | 1 + drivers/iio/trigger/stm32-timer-trigger.c | 340 ++++++++++++++++ drivers/mfd/Kconfig | 11 + drivers/mfd/Makefile | 2 + drivers/mfd/stm32-timers.c | 80 ++++ drivers/pwm/Kconfig | 9 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-stm32.c | 434 +++++++++++++++++++++ include/linux/iio/timer/stm32-timer-trigger.h | 62 +++ include/linux/mfd/stm32-timers.h | 71 ++++ 18 files changed, 1455 insertions(+), 1 deletion(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt create mode 100644 Documentation/devicetree/bindings/mfd/stm32-timers.txt create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txt create mode 100644 drivers/iio/trigger/stm32-timer-trigger.c create mode 100644 drivers/mfd/stm32-timers.c create mode 100644 drivers/pwm/pwm-stm32.c create mode 100644 include/linux/iio/timer/stm32-timer-trigger.h create mode 100644 include/linux/mfd/stm32-timers.h -- 1.9.1

8 years, 8 months

[RFC PATCH 0/3] Remove some dummy set_power callbacks

by Baolin Wang

In future we plan to introduce USB charger to set PMIC current drawn from USB configuration, instead of using set_power callback in phy driver. Moreover in these 3 phy drivers, the set_power callback did not implement anything to set PMIC current, thus we should remove them. Baolin Wang (3): usb: phy: ab8500: Remove the set_power callback usb: phy: msm: Remove the set_power callback usb: phy: fsl: Remove the set_power callback drivers/usb/phy/phy-ab8500-usb.c | 20 -------------------- drivers/usb/phy/phy-fsl-usb.c | 12 ------------ drivers/usb/phy/phy-msm-usb.c | 18 ------------------ 3 files changed, 50 deletions(-) -- 1.7.9.5

8 years, 8 months

next-20170118 build: 0 failures 0 warnings (next-20170118)

by Build bot for Mark Brown

Tree/Branch: next-20170118 Git describe: next-20170118 Commit: 8fd170ca36 Add linux-next specific files for 20170118 Build Time: 105 min 43 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

8 years, 8 months

master build: 0 failures 0 warnings (v4.10-rc4-80-g0aa0313)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.10-rc4-80-g0aa0313 Commit: 0aa0313f9d Merge tag 'modules-for-v4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Build Time: 106 min 29 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

8 years, 8 months

master build: 0 failures 0 warnings (v4.10-rc4-78-g4b19a9e)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.10-rc4-78-g4b19a9e Commit: 4b19a9e20b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net Build Time: 102 min 3 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

8 years, 8 months

master build: 0 failures 1 warnings (v4.10-rc4-25-g7e84b30)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.10-rc4-25-g7e84b30 Commit: 7e84b30355 Merge tag 'mmc-v4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Build Time: 105 min 13 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:716:40: warning: 'out_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:716:40: warning: 'out_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

8 years, 8 months

next-20170117 build: 0 failures 3 warnings (next-20170117)

by Build bot for Mark Brown

Tree/Branch: next-20170117 Git describe: next-20170117 Commit: a65f0161f4 Add linux-next specific files for 20170117 Build Time: 101 min 43 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 3 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 3 1 ../drivers/rtc/rtc-stm32.c:673:51: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 ../drivers/rtc/rtc-stm32.c:651:51: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 ../drivers/net/wireless/marvell/mwifiex/pcie.c:303:5: warning: 'fw_status' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ../drivers/rtc/rtc-stm32.c:651:51: warning: large integer implicitly truncated to unsigned type [-Woverflow] ../drivers/rtc/rtc-stm32.c:673:51: warning: large integer implicitly truncated to unsigned type [-Woverflow] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/net/wireless/marvell/mwifiex/pcie.c:303:5: warning: 'fw_status' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig

8 years, 8 months

master build: 0 failures 1 warnings (v4.10-rc4-12-g5cf7a0f)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.10-rc4-12-g5cf7a0f Commit: 5cf7a0f344 Merge tag 'nfs-for-4.10-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs Build Time: 104 min 13 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:716:40: warning: 'out_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:716:40: warning: 'out_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

8 years, 8 months

master build: 0 failures 1 warnings (v4.10-rc4-5-g2eabb8b)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.10-rc4-5-g2eabb8b Commit: 2eabb8b8d6 Merge tag 'nfsd-4.10-1' of git://linux-nfs.org/~bfields/linux Build Time: 105 min 6 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:716:40: warning: 'out_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:716:40: warning: 'out_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

8 years, 8 months

next-20170116 build: 0 failures 4 warnings (next-20170116)

by Build bot for Mark Brown

Tree/Branch: next-20170116 Git describe: next-20170116 Commit: 38e4a8f0d6 Add linux-next specific files for 20170116 Build Time: 182 min 44 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 4 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allmodconfig 2 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 4 1 ../drivers/rtc/rtc-stm32.c:673:51: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 ../drivers/rtc/rtc-stm32.c:651:51: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 ../drivers/net/wireless/marvell/mwifiex/pcie.c:303:5: warning: 'fw_status' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../drivers/net/ethernet/mellanox/mlx5/en/tc.c:716:40: warning: 'out_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ../drivers/rtc/rtc-stm32.c:651:51: warning: large integer implicitly truncated to unsigned type [-Woverflow] ../drivers/rtc/rtc-stm32.c:673:51: warning: large integer implicitly truncated to unsigned type [-Woverflow] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ../drivers/net/ethernet/mellanox/mlx5/en/tc.c:716:40: warning: 'out_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/net/wireless/marvell/mwifiex/pcie.c:303:5: warning: 'fw_status' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig

8 years, 8 months

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