<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Hi Laurentiu,<div><br></div><div>thanks for the updated patch! I can confirm after intensive testing that the hangs on boot are fixed in this version (I’m using DCSS->MIPI DSI->TI eDP Bridge).<br><br>Best</div><div>Lukas<br><div dir="ltr"><span style="background-color: rgba(255, 255, 255, 0);">-- <br><br>Lukas F. Hartmann, CEO<br>MNT Research GmbH<br><a href="https://mntre.com/" dir="ltr" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="68/2" style="text-decoration-color: rgba(0, 0, 0, 0.258824);">https://mntre.com</a><br><br>--<br><br>Did you know? Our Open Laptop MNT Reform will launch soon on Crowd Supply: <a href="https://www.crowdsupply.com/MNT/Reform" dir="ltr" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="70">https://www.crowdsupply.com/MNT/Reform</a></span></div><div dir="ltr"><br><blockquote type="cite">On 6. Dec 2019, at 10:53, Laurentiu Palcu <laurentiu.palcu@nxp.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><span>Hi,</span><br><span></span><br><span>This patchset adds initial DCSS support for iMX8MQ chip. Initial support</span><br><span>includes only graphics plane support (no video planes), no HDR10 capabilities,</span><br><span>no graphics decompression (only linear, tiled and super-tiled buffers allowed).</span><br><span></span><br><span>Support for the rest of the features will be added incrementally, in subsequent</span><br><span>patches.</span><br><span></span><br><span>The patchset was tested with both HDP driver (not yet upstreamed) and MIPI-DSI</span><br><span>(drivers already on the dri-devel ML).</span><br><span></span><br><span>Thanks,</span><br><span>Laurentiu</span><br><span></span><br><span>Changes in v3:</span><br><span> * rebased to latest linux-next and made it compile as drmP.h was</span><br><span> removed;</span><br><span> * removed the patch adding the VIDEO2_PLL clock. It's already applied;</span><br><span> * removed an unnecessary 50ms sleep in the dcss_dtg_sync_set();</span><br><span> * fixed a a spurious hang reported by Lukas Hartmann and encountered</span><br><span> by me several times;</span><br><span> * mask DPR and DTG interrupts by default, as they may come enabled from</span><br><span> U-boot;</span><br><span></span><br><span>Changes in v2:</span><br><span> * Removed '0x' in node's unit-address both in DT and yaml;</span><br><span> * Made the address region size lowercase, to be consistent;</span><br><span> * Removed some left-over references to P010;</span><br><span> * Added a Kconfig dependency of DRM && ARCH_MXC. This will also silence compilation</span><br><span> issues reported by kbuild for other architectures;</span><br><span></span><br><span></span><br><span>Laurentiu Palcu (4):</span><br><span> drm/imx: compile imx directory by default</span><br><span> drm/imx: Add initial support for DCSS on iMX8MQ</span><br><span> dt-bindings: display: imx: add bindings for DCSS</span><br><span> arm64: dts: imx8mq: add DCSS node</span><br><span></span><br><span> .../bindings/display/imx/nxp,imx8mq-dcss.yaml | 86 +++</span><br><span> arch/arm64/boot/dts/freescale/imx8mq.dtsi | 25 +</span><br><span> drivers/gpu/drm/Makefile | 2 +-</span><br><span> drivers/gpu/drm/imx/Kconfig | 2 +</span><br><span> drivers/gpu/drm/imx/Makefile | 1 +</span><br><span> drivers/gpu/drm/imx/dcss/Kconfig | 8 +</span><br><span> drivers/gpu/drm/imx/dcss/Makefile | 6 +</span><br><span> drivers/gpu/drm/imx/dcss/dcss-blkctl.c | 75 ++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-crtc.c | 224 ++++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-ctxld.c | 447 +++++++++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-dev.c | 286 +++++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-dev.h | 195 +++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-dpr.c | 550 ++++++++++++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-drv.c | 181 +++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-dtg.c | 442 +++++++++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-kms.c | 322 ++++++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-kms.h | 52 ++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-plane.c | 418 +++++++++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-scaler.c | 826 +++++++++++++++++++++</span><br><span> drivers/gpu/drm/imx/dcss/dcss-ss.c | 179 +++++</span><br><span> 20 files changed, 4326 insertions(+), 1 deletion(-)</span><br><span> create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/Kconfig</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/Makefile</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-blkctl.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-crtc.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-ctxld.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-dev.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-dev.h</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-dpr.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-drv.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-dtg.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-kms.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-kms.h</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-plane.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-scaler.c</span><br><span> create mode 100644 drivers/gpu/drm/imx/dcss/dcss-ss.c</span><br><span></span><br><span>-- </span><br><span>2.7.4</span><br><span></span><br></div></blockquote></div></body></html>