From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Hans de Goede <hdegoede@redhat.com>
Cc: "Thierry Reding" <thierry.reding@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Jani Nikula" <jani.nikula@linux.intel.com>,
"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
"Len Brown" <lenb@kernel.org>,
linux-pwm@vger.kernel.org,
intel-gfx <intel-gfx@lists.freedesktop.org>,
dri-devel@lists.freedesktop.org,
"Mika Westerberg" <mika.westerberg@linux.intel.com>,
linux-acpi@vger.kernel.org
Subject: Re: [PATCH v5 00/16] acpi/pwm/i915: Convert pwm-crc and i915 driver's PWM code to use the atomic PWM API
Date: Sun, 2 Aug 2020 14:25:24 +0300 [thread overview]
Message-ID: <20200802112524.GS3703480@smile.fi.intel.com> (raw)
In-Reply-To: <e8f93474-1775-b20c-f9f2-e33592a02028@redhat.com>
On Sat, Aug 01, 2020 at 04:38:16PM +0200, Hans de Goede wrote:
> On 7/29/20 12:54 PM, Andy Shevchenko wrote:
> > On Fri, Jul 17, 2020 at 03:37:37PM +0200, Hans de Goede wrote:
...
> > One comment to consider, though. There are three channels in that PWM AFAIU.
> > One of them is backlight control, another one can be attached to haptics. The
> > concern is how this series may (or may not?) affect haptics behaviour.
>
> When you say "in that PWM" do you mean the LPSS one or the CRC one ?
CRC one. I have read it from PMIC spec, that's why the question.
> The CRC PWM driver patches do make it honor the requested output frequency,
> where before, because of a bug, it would stick with the out frequency
> setup by the firmware (or the power-on-reset value if no value is set
> by the firmware). This fix causing this is very clearly correct, but
> it could have unexpected side-effects.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2020-08-02 11:25 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-17 13:37 [PATCH v5 00/16] acpi/pwm/i915: Convert pwm-crc and i915 driver's PWM code to use the atomic PWM API Hans de Goede
2020-07-17 13:37 ` [PATCH v5 01/16] ACPI / LPSS: Resume Cherry Trail PWM controller in no-irq phase Hans de Goede
2020-07-17 13:37 ` [PATCH v5 02/16] ACPI / LPSS: Save Cherry Trail PWM ctx registers only once (at activation) Hans de Goede
2020-07-17 13:37 ` [PATCH v5 03/16] pwm: lpss: Fix off by one error in base_unit math in pwm_lpss_prepare() Hans de Goede
2020-07-17 13:37 ` [PATCH v5 04/16] pwm: lpss: Add range limit check for the base_unit register value Hans de Goede
2020-07-17 13:37 ` [PATCH v5 05/16] pwm: lpss: Add pwm_lpss_prepare_enable() helper Hans de Goede
2020-07-28 18:45 ` Andy Shevchenko
2020-07-28 19:49 ` Hans de Goede
2020-07-17 13:37 ` [PATCH v5 06/16] pwm: lpss: Use pwm_lpss_apply() when restoring state on resume Hans de Goede
2020-07-28 18:57 ` Andy Shevchenko
2020-07-28 19:55 ` Hans de Goede
2020-07-29 8:12 ` Andy Shevchenko
2020-08-02 20:51 ` Hans de Goede
2020-08-03 8:41 ` Andy Shevchenko
2020-07-17 13:37 ` [PATCH v5 07/16] pwm: crc: Fix period / duty_cycle times being off by a factor of 256 Hans de Goede
2020-07-28 19:36 ` Andy Shevchenko
2020-07-28 20:00 ` Hans de Goede
2020-07-29 8:13 ` Andy Shevchenko
2020-07-17 13:37 ` [PATCH v5 08/16] pwm: crc: Fix off-by-one error in the clock-divider calculations Hans de Goede
2020-07-29 10:28 ` Andy Shevchenko
2020-07-17 13:37 ` [PATCH v5 09/16] pwm: crc: Fix period changes not having any effect Hans de Goede
2020-07-29 10:30 ` Andy Shevchenko
2020-07-17 13:37 ` [PATCH v5 10/16] pwm: crc: Enable/disable PWM output on enable/disable Hans de Goede
2020-07-29 10:32 ` Andy Shevchenko
2020-07-17 13:37 ` [PATCH v5 11/16] pwm: crc: Implement apply() method to support the new atomic PWM API Hans de Goede
2020-07-29 10:51 ` Andy Shevchenko
2020-07-17 13:37 ` [PATCH v5 12/16] pwm: crc: Implement get_state() method Hans de Goede
2020-07-17 13:37 ` [PATCH v5 13/16] drm/i915: panel: Add get_vbt_pwm_freq() helper Hans de Goede
2020-07-17 13:37 ` [PATCH v5 14/16] drm/i915: panel: Honor the VBT PWM frequency for devs with an external PWM controller Hans de Goede
2020-07-17 13:44 ` [PATCH v5 15/16] drm/i915: panel: Honor the VBT PWM min setting " Hans de Goede
2020-07-17 13:44 ` [PATCH v5 16/16] drm/i915: panel: Use atomic PWM API " Hans de Goede
2020-07-27 7:41 ` [PATCH v5 00/16] acpi/pwm/i915: Convert pwm-crc and i915 driver's PWM code to use the atomic PWM API Thierry Reding
2020-07-29 8:23 ` Andy Shevchenko
2020-07-29 9:32 ` Hans de Goede
2020-07-30 9:26 ` Thierry Reding
2020-08-01 14:33 ` Hans de Goede
2020-07-29 10:54 ` Andy Shevchenko
2020-08-01 14:38 ` Hans de Goede
2020-08-02 11:25 ` Andy Shevchenko [this message]
2020-08-02 19:43 ` Hans de Goede
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