From mboxrd@z Thu Jan 1 00:00:00 1970 From: heiko@sntech.de (Heiko Stuebner) Date: Tue, 31 Oct 2017 00:01:08 +0100 Subject: [PATCH v6 00/10] rockchip: kevin: Enable edp display In-Reply-To: <20171019034812.13768-1-jeffy.chen@rock-chips.com> References: <20171019034812.13768-1-jeffy.chen@rock-chips.com> Message-ID: <2449324.8EdsLz1NaV@phil> To: linus-amlogic@lists.infradead.org List-Id: linus-amlogic.lists.infradead.org Hi Jeffy, Sean, Am Donnerstag, 19. Oktober 2017, 11:48:02 CET schrieb Jeffy Chen: > > Make edp display works on chromebook kevin(at least for boot animation). > > Also solve some issues i meet during the bringup. > > Changes in v6: > Don't change order of rockchip_drm_psr_register(). > > Changes in v5: > Call the destroy hook in the error handling path like in unbind(). > Call the destroy hook in the error handling path like in unbind(). > Update cleanup order in unbind(). > Add disable to unbind(), and inline clk_prepare_enable() with bind(). > > Jeffy Chen (10): > arm64: dts: rockchip: Enable edp disaplay on kevin > drm/rockchip: analogix_dp: Remove unnecessary init code > drm/bridge: analogix: Do not use device's drvdata > drm/bridge: analogix_dp: Fix connector and encoder cleanup > drm/rockchip: analogix_dp: Add a sanity check for > rockchip_drm_psr_register() > drm/rockchip: dw-mipi-dsi: Fix error handling path > drm/rockchip: inno_hdmi: Fix error handling path > drm/bridge/synopsys: dw-hdmi: Add missing bridge detach > drm/bridge/synopsys: dw-hdmi: Do not use device's drvdata > drm/rockchip: dw_hdmi: Fix error handling path As I was just looking at the edp dts change in patch1 again, does this series also contain a fix for the issue below [0] ? I'm still seeing this on 4.14-rc6 with the most recent drm tree merged in. Heiko [0] [ 27.960120] BUG: scheduling while atomic: kworker/1:1/68/0x00000002 [ 27.974429] Modules linked in: rockchipdrm dw_hdmi analogix_dp drm_kms_helper panel_simple crc32_ce drm crct10dif_ce rockchip_saradc pwm_bl pwm_cros_ec rockchip_thermal ip_tables x_tabl es ipv6 smsc95xx smsc75xx ax88179_178a asix usbnet phy_rockchip_pcie pcie_rockchip [ 28.008769] CPU: 1 PID: 68 Comm: kworker/1:1 Tainted: G W 4.14.0-rc7-03201-g12490811b353 #559 [ 28.008774] Hardware name: Google Kevin (DT) [ 28.008825] Workqueue: events analogix_dp_psr_work [rockchipdrm] [ 28.008828] Call trace: [ 28.008838] [] dump_backtrace+0x0/0x378 [ 28.008842] [] show_stack+0x14/0x20 [ 28.008847] [] dump_stack+0x9c/0xbc [ 28.008852] [] __schedule_bug+0x4c/0x70 [ 28.008856] [] __schedule+0x558/0x5e8 [ 28.008859] [] schedule+0x38/0xa0 [ 28.008864] [] schedule_hrtimeout_range_clock+0x84/0xe8 [ 28.008867] [] schedule_hrtimeout_range+0x10/0x18 [ 28.008870] [] usleep_range+0x64/0x78 [ 28.008882] [] analogix_dp_transfer+0x16c/0xa88 [analogix_dp] [ 28.008891] [] analogix_dpaux_transfer+0x10/0x18 [analogix_dp] [ 28.008950] [] drm_dp_dpcd_access+0x4c/0xf8 [drm_kms_helper] [ 28.008994] [] drm_dp_dpcd_write+0x1c/0x28 [drm_kms_helper] [ 28.009002] [] analogix_dp_disable_psr+0x60/0xb0 [analogix_dp] [ 28.009036] [] analogix_dp_psr_work+0x4c/0xc0 [rockchipdrm] [ 28.009040] [] process_one_work+0x1d4/0x348 [ 28.009043] [] worker_thread+0x48/0x470 [ 28.009048] [] kthread+0x12c/0x130 [ 28.009052] [] ret_from_fork+0x10/0x18 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Stuebner Subject: Re: [PATCH v6 00/10] rockchip: kevin: Enable edp display Date: Tue, 31 Oct 2017 00:01:08 +0100 Message-ID: <2449324.8EdsLz1NaV@phil> References: <20171019034812.13768-1-jeffy.chen@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20171019034812.13768-1-jeffy.chen@rock-chips.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Jeffy Chen , seanpaul@chromium.org Cc: Mark Rutland , Neil Armstrong , Catalin Marinas , Will Deacon , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Hans Verkuil , Laurent Pinchart , Romain Perier , Marek Szyprowski , linux-samsung-soc@vger.kernel.org, Jonathan Corbet , Kevin Hilman , briannorris@chromium.org, Krzysztof Kozlowski , linux-rockchip@lists.infradead.org, Matthias Kaehlcke , Daniel Vetter , Caesar Wang , Jose Abreu , devicetree@vger.kernel.org, Arnd Bergmann , Russell King , Rob Herring List-Id: linux-rockchip.vger.kernel.org SGkgSmVmZnksIFNlYW4sCgpBbSBEb25uZXJzdGFnLCAxOS4gT2t0b2JlciAyMDE3LCAxMTo0ODow MiBDRVQgc2NocmllYiBKZWZmeSBDaGVuOgo+IAo+IE1ha2UgZWRwIGRpc3BsYXkgd29ya3Mgb24g Y2hyb21lYm9vayBrZXZpbihhdCBsZWFzdCBmb3IgYm9vdCBhbmltYXRpb24pLgo+IAo+IEFsc28g c29sdmUgc29tZSBpc3N1ZXMgaSBtZWV0IGR1cmluZyB0aGUgYnJpbmd1cC4KPiAKPiBDaGFuZ2Vz IGluIHY2Ogo+IERvbid0IGNoYW5nZSBvcmRlciBvZiByb2NrY2hpcF9kcm1fcHNyX3JlZ2lzdGVy KCkuCj4gCj4gQ2hhbmdlcyBpbiB2NToKPiBDYWxsIHRoZSBkZXN0cm95IGhvb2sgaW4gdGhlIGVy cm9yIGhhbmRsaW5nIHBhdGggbGlrZSBpbiB1bmJpbmQoKS4KPiBDYWxsIHRoZSBkZXN0cm95IGhv b2sgaW4gdGhlIGVycm9yIGhhbmRsaW5nIHBhdGggbGlrZSBpbiB1bmJpbmQoKS4KPiBVcGRhdGUg Y2xlYW51cCBvcmRlciBpbiB1bmJpbmQoKS4KPiBBZGQgZGlzYWJsZSB0byB1bmJpbmQoKSwgYW5k IGlubGluZSBjbGtfcHJlcGFyZV9lbmFibGUoKSB3aXRoIGJpbmQoKS4KPiAKPiBKZWZmeSBDaGVu ICgxMCk6Cj4gICBhcm02NDogZHRzOiByb2NrY2hpcDogRW5hYmxlIGVkcCBkaXNhcGxheSBvbiBr ZXZpbgo+ICAgZHJtL3JvY2tjaGlwOiBhbmFsb2dpeF9kcDogUmVtb3ZlIHVubmVjZXNzYXJ5IGlu aXQgY29kZQo+ICAgZHJtL2JyaWRnZTogYW5hbG9naXg6IERvIG5vdCB1c2UgZGV2aWNlJ3MgZHJ2 ZGF0YQo+ICAgZHJtL2JyaWRnZTogYW5hbG9naXhfZHA6IEZpeCBjb25uZWN0b3IgYW5kIGVuY29k ZXIgY2xlYW51cAo+ICAgZHJtL3JvY2tjaGlwOiBhbmFsb2dpeF9kcDogQWRkIGEgc2FuaXR5IGNo ZWNrIGZvcgo+ICAgICByb2NrY2hpcF9kcm1fcHNyX3JlZ2lzdGVyKCkKPiAgIGRybS9yb2NrY2hp cDogZHctbWlwaS1kc2k6IEZpeCBlcnJvciBoYW5kbGluZyBwYXRoCj4gICBkcm0vcm9ja2NoaXA6 IGlubm9faGRtaTogRml4IGVycm9yIGhhbmRsaW5nIHBhdGgKPiAgIGRybS9icmlkZ2Uvc3lub3Bz eXM6IGR3LWhkbWk6IEFkZCBtaXNzaW5nIGJyaWRnZSBkZXRhY2gKPiAgIGRybS9icmlkZ2Uvc3lu b3BzeXM6IGR3LWhkbWk6IERvIG5vdCB1c2UgZGV2aWNlJ3MgZHJ2ZGF0YQo+ICAgZHJtL3JvY2tj aGlwOiBkd19oZG1pOiBGaXggZXJyb3IgaGFuZGxpbmcgcGF0aAoKQXMgSSB3YXMganVzdCBsb29r aW5nIGF0IHRoZSBlZHAgZHRzIGNoYW5nZSBpbiBwYXRjaDEgYWdhaW4sIGRvZXMgdGhpcwpzZXJp ZXMgYWxzbyBjb250YWluIGEgZml4IGZvciB0aGUgaXNzdWUgYmVsb3cgWzBdID8KCkknbSBzdGls bCBzZWVpbmcgdGhpcyBvbiA0LjE0LXJjNiB3aXRoIHRoZSBtb3N0IHJlY2VudCBkcm0gdHJlZSBt ZXJnZWQgaW4uCgoKSGVpa28KClswXQoKWyAgIDI3Ljk2MDEyMF0gQlVHOiBzY2hlZHVsaW5nIHdo aWxlIGF0b21pYzoga3dvcmtlci8xOjEvNjgvMHgwMDAwMDAwMgpbICAgMjcuOTc0NDI5XSBNb2R1 bGVzIGxpbmtlZCBpbjogcm9ja2NoaXBkcm0gZHdfaGRtaSBhbmFsb2dpeF9kcCBkcm1fa21zX2hl bHBlciBwYW5lbF9zaW1wbGUgY3JjMzJfY2UgZHJtIGNyY3QxMGRpZl9jZSByb2NrY2hpcF9zYXJh ZGMgcHdtX2JsIHB3bV9jcm9zX2VjIHJvY2tjaGlwX3RoZXJtYWwgaXBfdGFibGVzIHhfdGFibApl cyBpcHY2IHNtc2M5NXh4IHNtc2M3NXh4IGF4ODgxNzlfMTc4YSBhc2l4IHVzYm5ldCBwaHlfcm9j a2NoaXBfcGNpZSBwY2llX3JvY2tjaGlwClsgICAyOC4wMDg3NjldIENQVTogMSBQSUQ6IDY4IENv bW06IGt3b3JrZXIvMToxIFRhaW50ZWQ6IEcgICAgICAgIFcgICAgICAgNC4xNC4wLXJjNy0wMzIw MS1nMTI0OTA4MTFiMzUzICM1NTkKWyAgIDI4LjAwODc3NF0gSGFyZHdhcmUgbmFtZTogR29vZ2xl IEtldmluIChEVCkKWyAgIDI4LjAwODgyNV0gV29ya3F1ZXVlOiBldmVudHMgYW5hbG9naXhfZHBf cHNyX3dvcmsgW3JvY2tjaGlwZHJtXQpbICAgMjguMDA4ODI4XSBDYWxsIHRyYWNlOgpbICAgMjgu MDA4ODM4XSBbPGZmZmYwMDAwMDgwODhkNjA+XSBkdW1wX2JhY2t0cmFjZSsweDAvMHgzNzgKWyAg IDI4LjAwODg0Ml0gWzxmZmZmMDAwMDA4MDg5MGVjPl0gc2hvd19zdGFjaysweDE0LzB4MjAKWyAg IDI4LjAwODg0N10gWzxmZmZmMDAwMDA4OWIwNGQ4Pl0gZHVtcF9zdGFjaysweDljLzB4YmMKWyAg IDI4LjAwODg1Ml0gWzxmZmZmMDAwMDA4MGVjNGI0Pl0gX19zY2hlZHVsZV9idWcrMHg0Yy8weDcw ClsgICAyOC4wMDg4NTZdIFs8ZmZmZjAwMDAwODljNDgyOD5dIF9fc2NoZWR1bGUrMHg1NTgvMHg1 ZTgKWyAgIDI4LjAwODg1OV0gWzxmZmZmMDAwMDA4OWM0OGYwPl0gc2NoZWR1bGUrMHgzOC8weGEw ClsgICAyOC4wMDg4NjRdIFs8ZmZmZjAwMDAwODljODE5ND5dIHNjaGVkdWxlX2hydGltZW91dF9y YW5nZV9jbG9jaysweDg0LzB4ZTgKWyAgIDI4LjAwODg2N10gWzxmZmZmMDAwMDA4OWM4MjA4Pl0g c2NoZWR1bGVfaHJ0aW1lb3V0X3JhbmdlKzB4MTAvMHgxOApbICAgMjguMDA4ODcwXSBbPGZmZmYw MDAwMDg5YzdjNzQ+XSB1c2xlZXBfcmFuZ2UrMHg2NC8weDc4ClsgICAyOC4wMDg4ODJdIFs8ZmZm ZjAwMDAwMGVmNTZlND5dIGFuYWxvZ2l4X2RwX3RyYW5zZmVyKzB4MTZjLzB4YTg4IFthbmFsb2dp eF9kcF0KWyAgIDI4LjAwODg5MV0gWzxmZmZmMDAwMDAwZWYyMTkwPl0gYW5hbG9naXhfZHBhdXhf dHJhbnNmZXIrMHgxMC8weDE4IFthbmFsb2dpeF9kcF0KWyAgIDI4LjAwODk1MF0gWzxmZmZmMDAw MDAwZGRiYjFjPl0gZHJtX2RwX2RwY2RfYWNjZXNzKzB4NGMvMHhmOCBbZHJtX2ttc19oZWxwZXJd ClsgICAyOC4wMDg5OTRdIFs8ZmZmZjAwMDAwMGRkYmJlND5dIGRybV9kcF9kcGNkX3dyaXRlKzB4 MWMvMHgyOCBbZHJtX2ttc19oZWxwZXJdClsgICAyOC4wMDkwMDJdIFs8ZmZmZjAwMDAwMGVmMjEz MD5dIGFuYWxvZ2l4X2RwX2Rpc2FibGVfcHNyKzB4NjAvMHhiMCBbYW5hbG9naXhfZHBdClsgICAy OC4wMDkwMzZdIFs8ZmZmZjAwMDAwMGY4Mzk4Yz5dIGFuYWxvZ2l4X2RwX3Bzcl93b3JrKzB4NGMv MHhjMCBbcm9ja2NoaXBkcm1dClsgICAyOC4wMDkwNDBdIFs8ZmZmZjAwMDAwODBkZmY0ND5dIHBy b2Nlc3Nfb25lX3dvcmsrMHgxZDQvMHgzNDgKWyAgIDI4LjAwOTA0M10gWzxmZmZmMDAwMDA4MGUw MTAwPl0gd29ya2VyX3RocmVhZCsweDQ4LzB4NDcwClsgICAyOC4wMDkwNDhdIFs8ZmZmZjAwMDAw ODBlNjNkND5dIGt0aHJlYWQrMHgxMmMvMHgxMzAKWyAgIDI4LjAwOTA1Ml0gWzxmZmZmMDAwMDA4 MDg0Yjg4Pl0gcmV0X2Zyb21fZm9yaysweDEwLzB4MTgKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVs QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Heiko Stuebner To: Jeffy Chen , seanpaul@chromium.org Cc: linux-kernel@vger.kernel.org, briannorris@chromium.org, dianders@chromium.org, tfiga@chromium.org, Andrzej Hajda , Arnd Bergmann , Romain Perier , Russell King , Philipp Zabel , Jonathan Corbet , dri-devel@lists.freedesktop.org, Jingoo Han , David Airlie , Kevin Hilman , Catalin Marinas , Laurent Pinchart , Krzysztof Kozlowski , linux-samsung-soc@vger.kernel.org, Seung-Woo Kim , Inki Dae , linux-rockchip@lists.infradead.org, Kyungmin Park , Carlo Caione , Will Deacon , linux-amlogic@lists.infradead.org, Caesar Wang , Matthias Kaehlcke , devicetree@vger.kernel.org, Kukjin Kim , Tomeu Vizoso , zain wang , Hans Verkuil , Archit Taneja , Joonyoung Shim , linux-arm-kernel@lists.infradead.org, Marek Szyprowski , Daniel Vetter , Mark Yao , linux-renesas-soc@vger.kernel.org, Neil Armstrong , Kieran Bingham , Rob Herring , Jose Abreu , Mark Rutland Subject: Re: [PATCH v6 00/10] rockchip: kevin: Enable edp display Date: Tue, 31 Oct 2017 00:01:08 +0100 Message-ID: <2449324.8EdsLz1NaV@phil> In-Reply-To: <20171019034812.13768-1-jeffy.chen@rock-chips.com> References: <20171019034812.13768-1-jeffy.chen@rock-chips.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: devicetree-owner@vger.kernel.org List-ID: Hi Jeffy, Sean, Am Donnerstag, 19. Oktober 2017, 11:48:02 CET schrieb Jeffy Chen: > > Make edp display works on chromebook kevin(at least for boot animation). > > Also solve some issues i meet during the bringup. > > Changes in v6: > Don't change order of rockchip_drm_psr_register(). > > Changes in v5: > Call the destroy hook in the error handling path like in unbind(). > Call the destroy hook in the error handling path like in unbind(). > Update cleanup order in unbind(). > Add disable to unbind(), and inline clk_prepare_enable() with bind(). > > Jeffy Chen (10): > arm64: dts: rockchip: Enable edp disaplay on kevin > drm/rockchip: analogix_dp: Remove unnecessary init code > drm/bridge: analogix: Do not use device's drvdata > drm/bridge: analogix_dp: Fix connector and encoder cleanup > drm/rockchip: analogix_dp: Add a sanity check for > rockchip_drm_psr_register() > drm/rockchip: dw-mipi-dsi: Fix error handling path > drm/rockchip: inno_hdmi: Fix error handling path > drm/bridge/synopsys: dw-hdmi: Add missing bridge detach > drm/bridge/synopsys: dw-hdmi: Do not use device's drvdata > drm/rockchip: dw_hdmi: Fix error handling path As I was just looking at the edp dts change in patch1 again, does this series also contain a fix for the issue below [0] ? I'm still seeing this on 4.14-rc6 with the most recent drm tree merged in. Heiko [0] [ 27.960120] BUG: scheduling while atomic: kworker/1:1/68/0x00000002 [ 27.974429] Modules linked in: rockchipdrm dw_hdmi analogix_dp drm_kms_helper panel_simple crc32_ce drm crct10dif_ce rockchip_saradc pwm_bl pwm_cros_ec rockchip_thermal ip_tables x_tabl es ipv6 smsc95xx smsc75xx ax88179_178a asix usbnet phy_rockchip_pcie pcie_rockchip [ 28.008769] CPU: 1 PID: 68 Comm: kworker/1:1 Tainted: G W 4.14.0-rc7-03201-g12490811b353 #559 [ 28.008774] Hardware name: Google Kevin (DT) [ 28.008825] Workqueue: events analogix_dp_psr_work [rockchipdrm] [ 28.008828] Call trace: [ 28.008838] [] dump_backtrace+0x0/0x378 [ 28.008842] [] show_stack+0x14/0x20 [ 28.008847] [] dump_stack+0x9c/0xbc [ 28.008852] [] __schedule_bug+0x4c/0x70 [ 28.008856] [] __schedule+0x558/0x5e8 [ 28.008859] [] schedule+0x38/0xa0 [ 28.008864] [] schedule_hrtimeout_range_clock+0x84/0xe8 [ 28.008867] [] schedule_hrtimeout_range+0x10/0x18 [ 28.008870] [] usleep_range+0x64/0x78 [ 28.008882] [] analogix_dp_transfer+0x16c/0xa88 [analogix_dp] [ 28.008891] [] analogix_dpaux_transfer+0x10/0x18 [analogix_dp] [ 28.008950] [] drm_dp_dpcd_access+0x4c/0xf8 [drm_kms_helper] [ 28.008994] [] drm_dp_dpcd_write+0x1c/0x28 [drm_kms_helper] [ 28.009002] [] analogix_dp_disable_psr+0x60/0xb0 [analogix_dp] [ 28.009036] [] analogix_dp_psr_work+0x4c/0xc0 [rockchipdrm] [ 28.009040] [] process_one_work+0x1d4/0x348 [ 28.009043] [] worker_thread+0x48/0x470 [ 28.009048] [] kthread+0x12c/0x130 [ 28.009052] [] ret_from_fork+0x10/0x18 From mboxrd@z Thu Jan 1 00:00:00 1970 From: heiko@sntech.de (Heiko Stuebner) Date: Tue, 31 Oct 2017 00:01:08 +0100 Subject: [PATCH v6 00/10] rockchip: kevin: Enable edp display In-Reply-To: <20171019034812.13768-1-jeffy.chen@rock-chips.com> References: <20171019034812.13768-1-jeffy.chen@rock-chips.com> Message-ID: <2449324.8EdsLz1NaV@phil> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Jeffy, Sean, Am Donnerstag, 19. Oktober 2017, 11:48:02 CET schrieb Jeffy Chen: > > Make edp display works on chromebook kevin(at least for boot animation). > > Also solve some issues i meet during the bringup. > > Changes in v6: > Don't change order of rockchip_drm_psr_register(). > > Changes in v5: > Call the destroy hook in the error handling path like in unbind(). > Call the destroy hook in the error handling path like in unbind(). > Update cleanup order in unbind(). > Add disable to unbind(), and inline clk_prepare_enable() with bind(). > > Jeffy Chen (10): > arm64: dts: rockchip: Enable edp disaplay on kevin > drm/rockchip: analogix_dp: Remove unnecessary init code > drm/bridge: analogix: Do not use device's drvdata > drm/bridge: analogix_dp: Fix connector and encoder cleanup > drm/rockchip: analogix_dp: Add a sanity check for > rockchip_drm_psr_register() > drm/rockchip: dw-mipi-dsi: Fix error handling path > drm/rockchip: inno_hdmi: Fix error handling path > drm/bridge/synopsys: dw-hdmi: Add missing bridge detach > drm/bridge/synopsys: dw-hdmi: Do not use device's drvdata > drm/rockchip: dw_hdmi: Fix error handling path As I was just looking at the edp dts change in patch1 again, does this series also contain a fix for the issue below [0] ? I'm still seeing this on 4.14-rc6 with the most recent drm tree merged in. Heiko [0] [ 27.960120] BUG: scheduling while atomic: kworker/1:1/68/0x00000002 [ 27.974429] Modules linked in: rockchipdrm dw_hdmi analogix_dp drm_kms_helper panel_simple crc32_ce drm crct10dif_ce rockchip_saradc pwm_bl pwm_cros_ec rockchip_thermal ip_tables x_tabl es ipv6 smsc95xx smsc75xx ax88179_178a asix usbnet phy_rockchip_pcie pcie_rockchip [ 28.008769] CPU: 1 PID: 68 Comm: kworker/1:1 Tainted: G W 4.14.0-rc7-03201-g12490811b353 #559 [ 28.008774] Hardware name: Google Kevin (DT) [ 28.008825] Workqueue: events analogix_dp_psr_work [rockchipdrm] [ 28.008828] Call trace: [ 28.008838] [] dump_backtrace+0x0/0x378 [ 28.008842] [] show_stack+0x14/0x20 [ 28.008847] [] dump_stack+0x9c/0xbc [ 28.008852] [] __schedule_bug+0x4c/0x70 [ 28.008856] [] __schedule+0x558/0x5e8 [ 28.008859] [] schedule+0x38/0xa0 [ 28.008864] [] schedule_hrtimeout_range_clock+0x84/0xe8 [ 28.008867] [] schedule_hrtimeout_range+0x10/0x18 [ 28.008870] [] usleep_range+0x64/0x78 [ 28.008882] [] analogix_dp_transfer+0x16c/0xa88 [analogix_dp] [ 28.008891] [] analogix_dpaux_transfer+0x10/0x18 [analogix_dp] [ 28.008950] [] drm_dp_dpcd_access+0x4c/0xf8 [drm_kms_helper] [ 28.008994] [] drm_dp_dpcd_write+0x1c/0x28 [drm_kms_helper] [ 28.009002] [] analogix_dp_disable_psr+0x60/0xb0 [analogix_dp] [ 28.009036] [] analogix_dp_psr_work+0x4c/0xc0 [rockchipdrm] [ 28.009040] [] process_one_work+0x1d4/0x348 [ 28.009043] [] worker_thread+0x48/0x470 [ 28.009048] [] kthread+0x12c/0x130 [ 28.009052] [] ret_from_fork+0x10/0x18