- 15 Feb, 2024 19 commits
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Uwe Kleine-König authored
This function allocates a struct pwm_chip and driver data. Compared to the status quo the split into pwm_chip and driver data is new, otherwise it doesn't change anything relevant (yet). The intention is that after all drivers are switched to use this allocation function, its possible to add a struct device to struct pwm_chip to properly track the latter's lifetime without touching all drivers again. Proper lifetime tracking is a necessary precondition to introduce character device support for PWMs (that implements atomic setting and doesn't suffer from the sysfs overhead of the /sys/class/pwm userspace support). The new function pwmchip_priv() (obviously?) only works for chips allocated with pwmchip_alloc(). Link: https://lore.kernel.org/r/9577d6053a5a52536057dc8654ff567181c2da82.1707900770.git.u.kleine-koenig@pengutronix.deSigned-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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Uwe Kleine-König authored
These functions are useful to store and query driver private data depending on the pwm_chip. After struct pwm_chip got its own struct device, this can make use of dev_get_drvdata() and dev_set_drvdata() on that device. These functions are required already now to convert drivers to pwmchip_alloc() which must happen before changing pwm_chip::dev. Reviewed-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/67514cdf29d29bd8b4ad8d44fac87f6ae6dca1e5.1707900770.git.u.kleine-koenig@pengutronix.deSigned-off-by:
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Uwe Kleine-König authored
Currently a pwm_chip stores in its struct device *dev member a pointer to the parent device. Preparing a change that embeds a full struct device in struct pwm_chip, this accessor function should be used in all drivers directly accessing chip->dev now. This way struct pwm_chip and this new function can be changed without having to touch all drivers in the same change set. Make use of this function in the framework's core sources. Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/cc30090d2f9762bed9854a55612144bccc910781.1707900770.git.u.kleine-koenig@pengutronix.deSigned-off-by:
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Rafał Miłecki authored
MT7988 uses new registers layout just like MT7981 but it supports 8 PWM interfaces. Signed-off-by:
Rafał Miłecki <rafal@milecki.pl> Reviewed-by:
Daniel Golle <daniel@makrotopia.org> Reviewed-by:
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Rafał Miłecki authored
MT7988 has on-SoC controller that can control up to 8 PWM interfaces. It differs from blocks on other SoCs (amount of PWMs & registers) so it needs its own compatible string. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by:
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Raag Jadav authored
Now that we're setting driver_data using dev_set_drvdata(), we can use dev_get_drvdata() for accessing it. Signed-off-by:
Raag Jadav <raag.jadav@intel.com> Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240212130247.9985-6-raag.jadav@intel.comSigned-off-by:
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Dharma Balasubiramani authored
Convert device tree bindings for Atmel's HLCDC PWM controller to YAML format. Signed-off-by:
Dharma Balasubiramani <dharma.b@microchip.com> Reviewed-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240202001733.91455-3-dharma.b@microchip.comSigned-off-by:
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Uwe Kleine-König authored
Lowlevel driver callbacks are not supposed to use the consumer API functions. Currently this works, but with the upcoming locking changes this maybe results in dead locks. So directly access pwm->state. Link: https://lore.kernel.org/r/20240126101624.2056801-2-u.kleine-koenig@pengutronix.deSigned-off-by:
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Uwe Kleine-König authored
Lowlevel driver callbacks are not supposed to use the consumer API functions. Currently this works, but with the upcoming locking changes this probably results in dead locks. Reviewed-by:
Claudiu Beznea <claudiu.beznea@tuxon.dev> Link: https://lore.kernel.org/r/20240129085627.2386470-2-u.kleine-koenig@pengutronix.deSigned-off-by:
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Uwe Kleine-König authored
Lowlevel driver callbacks are not supposed to use the consumer API functions. Currently this works, but with the upcoming locking changes this probably results in dead locks. Reviewed-by:
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Uwe Kleine-König authored
Since commit fcc76072 ("pwm: bcm2835: Allow PWM driver to be used in atomic context") struct bcm2835_pwm::dev is only assigned a value, but it's never used. So the dev member can just be dropped. Link: https://lore.kernel.org/r/20240129081029.2355612-2-u.kleine-koenig@pengutronix.deSigned-off-by:
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Uwe Kleine-König authored
This moves the functions called by pwm consumers above the functions called by pwm providers. When character device support is added later this is hooked into the chip registration functions. As the needed callbacks are a kind of consumer and make use of the consumer functions, having this order is more natural and prevents having to add declarations for static functions. Also move the global variables for pwm tables to the respective functions to have them properly grouped. Link: https://lore.kernel.org/r/eed83de07bdfb69b5ceba0b9aed757ee612dea8f.1706182805.git.u.kleine-koenig@pengutronix.deSigned-off-by:
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Duje Mihanović authored
Convert the PXA PWM binding file from TXT to YAML. The original binding does not mention any clocks, but the PWM controller will not probe without a clock. Reviewed-by:
Duje Mihanović <duje.mihanovic@skole.hr> Reviewed-by:
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Uwe Kleine-König authored
The struct never had a member called clk_freq. This fixes the W=1 warning: drivers/pwm/pwm-mediatek.c:60: warning: Excess struct member 'clk_freq' description in 'pwm_mediatek_chip' Fixes: efecdeb8 ("pwm: mediatek: Allocate the clks array dynamically") Reviewed-by:
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Uwe Kleine-König authored
args->args[0] is passed as parameter "index" to pwm_request_from_chip(). The latter function also checks for index >= npwm, so of_pwm_xlate_with_flags() doesn't need to do that. Link: https://lore.kernel.org/r/b06e445a6ed62a339add727eccb969a33d678386.1704835845.git.u.kleine-koenig@pengutronix.deSigned-off-by:
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Uwe Kleine-König authored
The default of_xlate callback (of_pwm_xlate_with_flags()) does everything the drivers expects from its .of_xlate() callback. So drop the custom implementation. Link: https://lore.kernel.org/r/f58336c298d536107de5cab6a57e19f957ab326c.1704835845.git.u.kleine-koenig@pengutronix.deSigned-off-by:
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Uwe Kleine-König authored
With this extension of_pwm_xlate_with_flags() is suitable to replace the custom xlate function of the pwm-clps711x driver. While touching these very similar functions align their implementations. Link: https://lore.kernel.org/r/127622315d07d9d419ae8e6373c7e5be7fab7a62.1704835845.git.u.kleine-koenig@pengutronix.deSigned-off-by:
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Uwe Kleine-König authored
Apart from the two of_xlate implementations this member is write-only. In the of_xlate functions of_pwm_xlate_with_flags() and of_pwm_single_xlate() it's more sensible to check for args->args_count because this is what is actually used in the device tree. Acked-by:
Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/53d8c545aa8f79a920358be9e72e382b3981bdc4.1704835845.git.u.kleine-koenig@pengutronix.deSigned-off-by:
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Raag Jadav authored
Since we don't have runtime PM handles here, we should be using pm_sleep_ptr() macro, so that the compiler can discard it in case CONFIG_PM_SLEEP=n. Fixes: 30b5b066 ("pwm: dwc: Use DEFINE_SIMPLE_DEV_PM_OPS for PM functions") Signed-off-by:
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- 07 Feb, 2024 1 commit
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Uwe Kleine-König authored
The driver only used the number of pwm channels to set the pwm_chip's npwm member. The result is that if there are more capture channels than PWM channels specified in the device tree, only a part of the capture channel is usable. Fix that by passing the bigger channel count to the pwm framework. This makes it possible that the .apply() callback is called with .hwpwm >= pwm_num_devs, catch that case and return an error code. Fixes: c97267ae ("pwm: sti: Add PWM capture callback") Link: https://lore.kernel.org/r/20240204212043.2951852-2-u.kleine-koenig@pengutronix.deSigned-off-by:
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- 04 Feb, 2024 1 commit
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Uwe Kleine-König authored
The suspend callback disables the periph clock when the PWM is enabled and resume reenables this clock if the PWM was disabled before. Judging from the code comment it's suspend that is wrong here. Fix accordingly. Fixes: f9bb9da7 ("pwm: atmel-hlcdc: Implement the suspend/resume hooks") Reviewed-by:
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- 21 Jan, 2024 19 commits
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Linus Torvalds authored
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https://evilpiepirate.org/git/bcachefsLinus Torvalds authored
Pull more bcachefs updates from Kent Overstreet: "Some fixes, Some refactoring, some minor features: - Assorted prep work for disk space accounting rewrite - BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this makes our trigger context more explicit - A few fixes to avoid excessive transaction restarts on multithreaded workloads: fstests (in addition to ktest tests) are now checking slowpath counters, and that's shaking out a few bugs - Assorted tracepoint improvements - Starting to break up bcachefs_format.h and move on disk types so they're with the code they belong to; this will make room to start documenting the on disk format better. - A few minor fixes" * tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs: (46 commits) bcachefs: Improve inode_to_text() bcachefs: logged_ops_format.h bcachefs: reflink_format.h bcachefs; extents_format.h bcachefs: ec_format.h bcachefs: subvolume_format.h bcachefs: snapshot_format.h bcachefs: alloc_background_format.h bcachefs: xattr_format.h bcachefs: dirent_format.h bcachefs: inode_format.h bcachefs; quota_format.h bcachefs: sb-counters_format.h bcachefs: counters.c -> sb-counters.c bcachefs: comment bch_subvolume bcachefs: bch_snapshot::btime bcachefs: add missing __GFP_NOWARN bcachefs: opts->compression can now also be applied in the background bcachefs: Prep work for variable size btree node buffers bcachefs: grab s_umount only if snapshotting ... -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer updates from Thomas Gleixner: "Updates for time and clocksources: - A fix for the idle and iowait time accounting vs CPU hotplug. The time is reset on CPU hotplug which makes the accumulated systemwide time jump backwards. - Assorted fixes and improvements for clocksource/event drivers" * tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug clocksource/drivers/ep93xx: Fix error handling during probe clocksource/drivers/cadence-ttc: Fix some kernel-doc warnings clocksource/drivers/timer-ti-dm: Fix make W=n kerneldoc warnings clocksource/timer-riscv: Add riscv_clock_shutdown callback dt-bindings: timer: Add StarFive JH8100 clint dt-bindings: timer: thead,c900-aclint-mtimer: separate mtime and mtimecmp regs -
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Aneesh Kumar: - Increase default stack size to 32KB for Book3S Thanks to Michael Ellerman. * tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Increase default stack size to 32KB
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Kent Overstreet authored
Add line breaks - inode_to_text() is now much easier to read. Signed-off-by:Kent Overstreet <kent.overstreet@linux.dev>
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
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Kent Overstreet authored
bcachefs_format.h has gotten too big; let's do some organizing. Signed-off-by: -
Kent Overstreet authored
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Kent Overstreet authored
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