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Uwe Kleine-König d83df7de2b pwm: stm32: Refuse too small period requests 
commit c45fcf46ca upstream.

If period_ns is small, prd might well become 0. Catch that case because
otherwise with

	regmap_write(priv->regmap, TIM_ARR, prd - 1);

a few lines down quite a big period is configured.

Fixes: 7edf736920 ("pwm: Add driver for STM32 plaftorm")
Cc: stable@vger.kernel.org
Reviewed-by: Trevor Gamblin <tgamblin@baylibre.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/b86f62f099983646f97eeb6bfc0117bb2d0c340d.1718979150.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-05 09:34:05 +02:00
..
core.c
pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()
2024-06-12 11:12:24 +02:00
Kconfig
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Makefile
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pwm-ab8500.c
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pwm-apple.c
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pwm-atmel-hlcdc.c
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pwm-atmel-tcb.c
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pwm-atmel.c
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pwm-bcm2835.c
…
pwm-bcm-iproc.c
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pwm-bcm-kona.c
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pwm-berlin.c
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pwm-brcmstb.c
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pwm-clk.c
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pwm-clps711x.c
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pwm-crc.c
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pwm-cros-ec.c
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pwm-dwc.c
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pwm-ep93xx.c
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pwm-fsl-ftm.c
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pwm-hibvt.c
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pwm-img.c
pwm: img: fix pwm clock lookup
2024-04-03 15:28:52 +02:00
pwm-imx1.c
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pwm-imx27.c
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pwm-imx-tpm.c
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pwm-intel-lgm.c
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pwm-iqs620a.c
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pwm-jz4740.c
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pwm-keembay.c
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pwm-lp3943.c
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pwm-lpc18xx-sct.c
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pwm-lpc32xx.c
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pwm-lpss-pci.c
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pwm-lpss-platform.c
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pwm-lpss.c
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pwm-lpss.h
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pwm-mediatek.c
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pwm-meson.c
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pwm-microchip-core.c
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pwm-mtk-disp.c
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pwm-mxs.c
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pwm-ntxec.c
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pwm-omap-dmtimer.c
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pwm-pca9685.c
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pwm-pxa.c
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pwm-raspberrypi-poe.c
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pwm-rcar.c
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pwm-renesas-tpu.c
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pwm-rockchip.c
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pwm-rz-mtu3.c
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pwm-samsung.c
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pwm-sifive.c
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pwm-sl28cpld.c
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pwm-spear.c
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pwm-sprd.c
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pwm-sti.c
pwm: sti: Simplify probe function using devm functions
2024-06-12 11:11:46 +02:00
pwm-stm32-lp.c
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pwm-stm32.c
pwm: stm32: Refuse too small period requests
2024-07-05 09:34:05 +02:00
pwm-stmpe.c
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pwm-sun4i.c
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pwm-sunplus.c
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pwm-tegra.c
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pwm-tiecap.c
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pwm-tiehrpwm.c
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pwm-twl-led.c
pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()
2024-06-12 11:12:24 +02:00
pwm-twl.c
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pwm-visconti.c
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pwm-vt8500.c
pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()
2024-06-12 11:12:24 +02:00
pwm-xilinx.c
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sysfs.c
pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()
2024-06-12 11:12:24 +02:00