From: Douglas Anderson <dianders@chromium.org> To: 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> Cc: devicetree@vger.kernel.org, cros-qcom-dts-watchers@chromium.org, linux-arm-msm@vger.kernel.org, yangcong5@huaqin.corp-partner.google.com, Dmitry Torokhov <dmitry.torokhov@gmail.com>, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Douglas Anderson <dianders@chromium.org>, linux-input@vger.kernel.org, hsinyi@google.com Subject: [PATCH 0/9] drm/panel and i2c-hid: Allow panels and touchscreens to power sequence together Date: Tue, 23 May 2023 12:27:54 -0700 [thread overview] Message-ID: <20230523193017.4109557-1-dianders@chromium.org> (raw) 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. Assuming that people think this patch series looks OK, we'll have to figure out the right way to land it. The panel patches and i2c-hid patches will go through very different trees and so either we'll need an Ack from one side or the other or someone to create a tag for the other tree to pull in. This will _probably_ require the true drm-misc maintainers to get involved, not a lowly committer. ;-) Douglas Anderson (9): dt-bindings: HID: i2c-hid: Add "panel" property to i2c-hid backed panels drm/panel: Check for already prepared/enabled in drm_panel drm/panel: Add a way for other devices to follow panel state HID: i2c-hid: Switch to SYSTEM_SLEEP_PM_OPS() HID: i2c-hid: Rearrange probe() to power things up later HID: i2c-hid: Make suspend and resume into helper functions HID: i2c-hid: Support being a panel follower HID: i2c-hid: Do panel follower work on the system_wq arm64: dts: qcom: sc7180: Link trogdor touchscreens to the panels .../bindings/input/elan,ekth6915.yaml | 6 + .../bindings/input/goodix,gt7375p.yaml | 6 + .../bindings/input/hid-over-i2c.yaml | 6 + .../boot/dts/qcom/sc7180-trogdor-coachz.dtsi | 1 + .../dts/qcom/sc7180-trogdor-homestar.dtsi | 1 + .../boot/dts/qcom/sc7180-trogdor-lazor.dtsi | 1 + .../boot/dts/qcom/sc7180-trogdor-pompom.dtsi | 1 + .../qcom/sc7180-trogdor-quackingstick.dtsi | 1 + .../dts/qcom/sc7180-trogdor-wormdingler.dtsi | 1 + drivers/gpu/drm/drm_panel.c | 194 +++++++++- drivers/hid/i2c-hid/i2c-hid-core.c | 330 +++++++++++++----- include/drm/drm_panel.h | 89 +++++ 12 files changed, 542 insertions(+), 95 deletions(-) -- 2.40.1.698.g37aff9b760-goog
WARNING: multiple messages have this Message-ID (diff)
From: Douglas Anderson <dianders@chromium.org> To: 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> Cc: dri-devel@lists.freedesktop.org, linux-input@vger.kernel.org, Dmitry Torokhov <dmitry.torokhov@gmail.com>, 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, Douglas Anderson <dianders@chromium.org> Subject: [PATCH 0/9] drm/panel and i2c-hid: Allow panels and touchscreens to power sequence together Date: Tue, 23 May 2023 12:27:54 -0700 [thread overview] Message-ID: <20230523193017.4109557-1-dianders@chromium.org> (raw) 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. Assuming that people think this patch series looks OK, we'll have to figure out the right way to land it. The panel patches and i2c-hid patches will go through very different trees and so either we'll need an Ack from one side or the other or someone to create a tag for the other tree to pull in. This will _probably_ require the true drm-misc maintainers to get involved, not a lowly committer. ;-) Douglas Anderson (9): dt-bindings: HID: i2c-hid: Add "panel" property to i2c-hid backed panels drm/panel: Check for already prepared/enabled in drm_panel drm/panel: Add a way for other devices to follow panel state HID: i2c-hid: Switch to SYSTEM_SLEEP_PM_OPS() HID: i2c-hid: Rearrange probe() to power things up later HID: i2c-hid: Make suspend and resume into helper functions HID: i2c-hid: Support being a panel follower HID: i2c-hid: Do panel follower work on the system_wq arm64: dts: qcom: sc7180: Link trogdor touchscreens to the panels .../bindings/input/elan,ekth6915.yaml | 6 + .../bindings/input/goodix,gt7375p.yaml | 6 + .../bindings/input/hid-over-i2c.yaml | 6 + .../boot/dts/qcom/sc7180-trogdor-coachz.dtsi | 1 + .../dts/qcom/sc7180-trogdor-homestar.dtsi | 1 + .../boot/dts/qcom/sc7180-trogdor-lazor.dtsi | 1 + .../boot/dts/qcom/sc7180-trogdor-pompom.dtsi | 1 + .../qcom/sc7180-trogdor-quackingstick.dtsi | 1 + .../dts/qcom/sc7180-trogdor-wormdingler.dtsi | 1 + drivers/gpu/drm/drm_panel.c | 194 +++++++++- drivers/hid/i2c-hid/i2c-hid-core.c | 330 +++++++++++++----- include/drm/drm_panel.h | 89 +++++ 12 files changed, 542 insertions(+), 95 deletions(-) -- 2.40.1.698.g37aff9b760-goog
next reply other threads:[~2023-05-23 19:31 UTC|newest] Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-05-23 19:27 Douglas Anderson [this message] 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 2023-05-23 19:27 ` Douglas Anderson 2023-05-30 15:34 ` Krzysztof Kozlowski 2023-05-30 15:34 ` Krzysztof Kozlowski 2023-05-30 16:52 ` Doug Anderson 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 2023-05-23 19:27 ` Douglas Anderson 2023-05-24 9:52 ` Neil Armstrong 2023-05-24 9:52 ` Neil Armstrong 2023-05-24 16:57 ` Doug Anderson 2023-05-24 16:57 ` Doug Anderson 2023-05-24 16:19 ` Chris Morgan 2023-05-24 16:19 ` Chris Morgan 2023-05-24 17:04 ` Doug Anderson 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 ` 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 ` 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 19:27 ` Douglas Anderson 2023-05-23 23:27 ` kernel test robot 2023-05-23 23:27 ` kernel test robot 2023-05-24 13:01 ` kernel test robot 2023-05-24 13:01 ` kernel test robot 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 ` Douglas Anderson 2023-05-23 19:28 ` [PATCH 7/9] HID: i2c-hid: Support being a panel follower Douglas Anderson 2023-05-23 19:28 ` Douglas Anderson 2023-05-24 0:28 ` kernel test robot 2023-05-24 0:28 ` kernel test robot 2023-05-24 15:37 ` kernel test robot 2023-05-24 15:37 ` kernel test robot 2023-05-24 17:29 ` Doug 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 ` Douglas Anderson 2023-05-24 1:36 ` kernel test robot 2023-05-24 1:36 ` kernel test robot 2023-05-24 18:56 ` kernel test robot 2023-05-24 18:56 ` kernel test robot 2023-05-23 19:28 ` [PATCH 9/9] arm64: dts: qcom: sc7180: Link trogdor touchscreens to the panels Douglas Anderson 2023-05-23 19:28 ` Douglas Anderson 2023-05-23 21:39 ` [PATCH 0/9] drm/panel and i2c-hid: Allow panels and touchscreens to power sequence together Dmitry Torokhov 2023-05-23 21:39 ` Dmitry Torokhov 2023-05-23 23:52 ` Doug Anderson 2023-05-23 23:52 ` Doug Anderson 2023-05-26 19:29 ` Konrad Dybcio 2023-05-26 19:29 ` Konrad Dybcio
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