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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Douglas Anderson <dianders@chromium.org>
Cc: Jiri Kosina <jikos@kernel.org>,
	Benjamin Tissoires <benjamin.tissoires@redhat.com>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konrad.dybcio@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	dri-devel@lists.freedesktop.org, linux-input@vger.kernel.org,
	hsinyi@google.com, devicetree@vger.kernel.org,
	yangcong5@huaqin.corp-partner.google.com,
	linux-kernel@vger.kernel.org, Daniel Vetter <daniel@ffwll.ch>,
	linux-arm-msm@vger.kernel.org,
	cros-qcom-dts-watchers@chromium.org
Subject: Re: [PATCH 0/9] drm/panel and i2c-hid: Allow panels and touchscreens to power sequence together
Date: Tue, 23 May 2023 14:39:26 -0700	[thread overview]
Message-ID: <ZG0yjuNvhnircAxA@google.com> (raw)
In-Reply-To: <20230523193017.4109557-1-dianders@chromium.org>

Hi Doug,

On Tue, May 23, 2023 at 12:27:54PM -0700, Douglas Anderson wrote:
> 
> The big motivation for this patch series is mostly described in the patch
> ("drm/panel: Add a way for other devices to follow panel state"), but to
> quickly summarize here: for touchscreens that are connected to a panel we
> need the ability to power sequence the two device together. This is not a
> new need, but so far we've managed to get by through a combination of
> inefficiency, added costs, or perhaps just a little bit of brokenness.
> It's time to do better. This patch series allows us to do better.

This seems to grow a new way of building relationship between panels and
associated devices. Can we make device_link_*() work for us?

Thanks.

-- 
Dmitry

  parent reply	other threads:[~2023-05-23 21:39 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-23 19:27 [PATCH 0/9] drm/panel and i2c-hid: Allow panels and touchscreens to power sequence together Douglas Anderson
2023-05-23 19:27 ` [PATCH 1/9] dt-bindings: HID: i2c-hid: Add "panel" property to i2c-hid backed panels Douglas Anderson
2023-05-30 15:34   ` Krzysztof Kozlowski
2023-05-30 16:52     ` Doug Anderson
2023-05-23 19:27 ` [PATCH 2/9] drm/panel: Check for already prepared/enabled in drm_panel Douglas Anderson
2023-05-24  9:52   ` Neil Armstrong
2023-05-24 16:57     ` Doug Anderson
2023-05-24 16:19   ` Chris Morgan
2023-05-24 17:04     ` Doug Anderson
2023-05-23 19:27 ` [PATCH 3/9] drm/panel: Add a way for other devices to follow panel state Douglas Anderson
2023-05-23 19:27 ` [PATCH 4/9] HID: i2c-hid: Switch to SYSTEM_SLEEP_PM_OPS() Douglas Anderson
2023-05-23 19:27 ` [PATCH 5/9] HID: i2c-hid: Rearrange probe() to power things up later Douglas Anderson
2023-05-23 19:28 ` [PATCH 6/9] HID: i2c-hid: Make suspend and resume into helper functions Douglas Anderson
2023-05-23 19:28 ` [PATCH 7/9] HID: i2c-hid: Support being a panel follower Douglas Anderson
2023-05-24 17:29   ` Doug Anderson
2023-05-23 19:28 ` [PATCH 8/9] HID: i2c-hid: Do panel follower work on the system_wq Douglas Anderson
2023-05-23 19:28 ` [PATCH 9/9] arm64: dts: qcom: sc7180: Link trogdor touchscreens to the panels Douglas Anderson
2023-05-23 21:39 ` Dmitry Torokhov [this message]
2023-05-23 23:52   ` [PATCH 0/9] drm/panel and i2c-hid: Allow panels and touchscreens to power sequence together Doug Anderson
2023-05-26 19:29 ` Konrad Dybcio

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