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linux/drivers/pwm
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Erik Schumacher cc6a931d1f pwm: imx-tpm: Use correct MODULO value for EPWM mode 
The modulo register defines the period of the edge-aligned PWM mode
(which is the only mode implemented). The reference manual states:
"The EPWM period is determined by (MOD + 0001h) ..." So the value that
is written to the MOD register must therefore be one less than the
calculated period length. Return -EINVAL if the calculated length is
already zero.
A correct MODULO value is particularly relevant if the PWM has to output
a high frequency due to a low period value.

Fixes: 738a1cfec2 ("pwm: Add i.MX TPM PWM driver support")
Cc: stable@vger.kernel.org
Signed-off-by: Erik Schumacher <erik.schumacher@iris-sensing.com>
Link: https://lore.kernel.org/r/1a3890966d68b9f800d457cbf095746627495e18.camel@iris-sensing.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
2024-10-25 11:29:17 +02:00
..
core.c pwm: Simplify pwm_capture() 2024-09-05 11:14:14 +02:00
Kconfig pwm: adp5585: Add Analog Devices ADP5585 support 2024-08-01 14:09:28 +01:00
Makefile pwm: adp5585: Add Analog Devices ADP5585 support 2024-08-01 14:09:28 +01:00
pwm-ab8500.c
pwm-adp5585.c pwm: adp5585: Set OSC_EN bit to 1 when PWM state is enabled 2024-09-16 15:24:58 +02:00
pwm-apple.c
pwm-atmel-hlcdc.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-atmel-tcb.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-atmel.c
pwm-axi-pwmgen.c pwm: axi-pwmgen: use shared macro for version reg 2024-09-16 15:24:58 +02:00
pwm-bcm2835.c pwm: bcm2835: Drop open coded variant of devm_clk_rate_exclusive_get() 2024-04-30 18:57:08 +02:00
pwm-bcm-iproc.c
pwm-bcm-kona.c
pwm-berlin.c
pwm-brcmstb.c
pwm-clk.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-clps711x.c pwm: clps711x: Make use of devm_pwmchip_alloc() function 2024-02-15 12:59:21 +01:00
pwm-crc.c pwm: crc: Make use of devm_pwmchip_alloc() function 2024-02-15 12:59:21 +01:00
pwm-cros-ec.c pwm: cros-ec: Simplify device tree xlation 2024-07-10 17:52:47 +02:00
pwm-dwc-core.c pwm: dwc: allow suspend/resume for 16 channels 2024-04-15 17:28:13 +02:00
pwm-dwc.c pwm: dwc: allow suspend/resume for 16 channels 2024-04-15 17:28:13 +02:00
pwm-dwc.h pwm: dwc: allow suspend/resume for 16 channels 2024-04-15 17:28:13 +02:00
pwm-ep93xx.c pwm: ep93xx: drop legacy pinctrl 2024-09-12 14:33:11 +00:00
pwm-fsl-ftm.c pwm: fsl-ftm: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:09 +01:00
pwm-gpio.c pwm: Add GPIO PWM driver 2024-07-10 17:52:47 +02:00
pwm-hibvt.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-img.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-imx1.c pwm: add missing MODULE_DESCRIPTION() macros 2024-07-10 17:52:46 +02:00
pwm-imx27.c pwm: add missing MODULE_DESCRIPTION() macros 2024-07-10 17:52:46 +02:00
pwm-imx-tpm.c pwm: imx-tpm: Use correct MODULO value for EPWM mode 2024-10-25 11:29:17 +02:00
pwm-intel-lgm.c pwm: add missing MODULE_DESCRIPTION() macros 2024-07-10 17:52:46 +02:00
pwm-iqs620a.c pwm: iqs620a: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:10 +01:00
pwm-jz4740.c pwm: jz4740: Another few conversions to regmap_{set,clear}_bits() 2024-07-10 17:52:46 +02:00
pwm-keembay.c pwm: keembay: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:10 +01:00
pwm-lp3943.c pwm: lp3943: Fix an incorrect type in lp3943_pwm_parse_dt() 2024-09-16 15:23:36 +02:00
pwm-lpc18xx-sct.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-lpc32xx.c pwm: lpc32xx: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:11 +01:00
pwm-lpss-pci.c pwm: lpss: drop redundant runtime PM handles 2024-07-10 17:53:51 +02:00
pwm-lpss-platform.c pwm: lpss: use devm_pm_runtime_enable() helper 2024-07-10 17:53:51 +02:00
pwm-lpss.c pwm: lpss-*: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:11 +01:00
pwm-lpss.h pwm: lpss-*: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:11 +01:00
pwm-mediatek.c pwm: add missing MODULE_DESCRIPTION() macros 2024-07-10 17:52:46 +02:00
pwm-meson.c pwm: meson: Add support for Amlogic S4 PWM 2024-07-10 17:52:47 +02:00
pwm-microchip-core.c pwm: microchip-core: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:12 +01:00
pwm-mtk-disp.c pwm: mtk-disp: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:12 +01:00
pwm-mxs.c pwm: mxs: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:12 +01:00
pwm-ntxec.c pwm: ntxec: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:12 +01:00
pwm-omap-dmtimer.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-pca9685.c pwm: pca9685: Drop explicit initialization of struct i2c_device_id::driver_data to 0 2024-05-10 07:30:27 +02:00
pwm-pxa.c pwm: add missing MODULE_DESCRIPTION() macros 2024-07-10 17:52:46 +02:00
pwm-raspberrypi-poe.c pwm: raspberrypi-poe: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:13 +01:00
pwm-rcar.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-renesas-tpu.c pwm: renesas-tpu: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:13 +01:00
pwm-rockchip.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-rz-mtu3.c pwm: rz-mtu3: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:14 +01:00
pwm-samsung.c of: remove internal arguments from of_property_for_each_u32() 2024-07-25 06:53:47 -05:00
pwm-sifive.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-sl28cpld.c pwm: sl28cpld: Make use of devm_pwmchip_alloc() function 2024-02-19 11:04:15 +01:00
pwm-spear.c pwm: add missing MODULE_DESCRIPTION() macros 2024-07-10 17:52:46 +02:00
pwm-sprd.c pwm: sprd: Make use of devm_pwmchip_alloc() function 2024-02-22 14:39:10 +01:00
pwm-sti.c pwm: sti: Prefer local variable over pointer dereference 2024-04-26 21:29:17 +02:00
pwm-stm32-lp.c pwm: stm32-lp: Make use of devm_pwmchip_alloc() function 2024-02-22 14:39:25 +01:00
pwm-stm32.c pwm: stm32: Fix a typo 2024-09-16 15:24:59 +02:00
pwm-stmpe.c pwm: stmpe: Make use of devm_pwmchip_alloc() function 2024-02-22 14:39:25 +01:00
pwm-sun4i.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-sunplus.c pwm: sunplus: Make use of devm_pwmchip_alloc() function 2024-02-22 14:39:25 +01:00
pwm-tegra.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-tiecap.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-tiehrpwm.c pwm: Switch back to struct platform_driver::remove() 2024-09-16 15:24:59 +02:00
pwm-twl-led.c pwm: twl-led: Make use of devm_pwmchip_alloc() function 2024-02-22 14:39:27 +01:00
pwm-twl.c pwm: twl: Make use of devm_pwmchip_alloc() function 2024-02-22 14:39:27 +01:00
pwm-visconti.c pwm: add missing MODULE_DESCRIPTION() macros 2024-07-10 17:52:46 +02:00
pwm-vt8500.c pwm: vt8500: Make use of devm_pwmchip_alloc() function 2024-02-22 14:39:27 +01:00
pwm-xilinx.c pwm: xilinx: Simplify using devm_ functions 2024-07-10 17:53:52 +02:00