kernel/linux.git/drivers/gpu/drm/imx, branch v4.19.39

drm/imx: imx-ldb: add missing of_node_puts

2019-03-23T19:09:41+00:00

[ Upstream commit aa3312012f103f91f123600bbf768b11c8f431bc ] The device node iterators perform an of_node_get on each iteration, so a jump out of the loop requires an of_node_put. Move the initialization channel->child = child; down to just before the call to imx_ldb_register so that intervening failures don't need to clear it. Add a label at the end of the function to do all the of_node_puts. The semantic patch that finds part of this problem is as follows (http://coccinelle.lip6.fr): // @@ expression root,e; local idexpression child; iterator name for_each_child_of_node; @@ for_each_child_of_node(root, child) { ... when != of_node_put(child) when != e = child ( return child; | * return ...; ) ... } // Signed-off-by: Julia Lawall Signed-off-by: Philipp Zabel Signed-off-by: Sasha Levin

drm/imx: ignore plane updates on disabled crtcs

2019-03-23T19:09:41+00:00

[ Upstream commit 4fb873c9648e383206e0a91cef9b03aa54066aca ] This patch fixes backtraces like the following when sending SIGKILL to a process with a currently pending plane update: [drm:ipu_plane_atomic_check] CRTC should be enabled [drm:drm_framebuffer_remove] *ERROR* failed to commit ------------[ cut here ]------------ WARNING: CPU: 3 PID: 63 at drivers/gpu/drm/drm_framebuffer.c:926 drm_framebuffer_remove+0x47c/0x498 atomic remove_fb failed with -22 Signed-off-by: Philipp Zabel Signed-off-by: Sasha Levin

Merge tag 'imx-drm-next-2018-08-03' of git://git.pengutronix.de/git/pza/linux into drm-next

2018-08-10T01:13:36+00:00

drm/imx: use suspend/resume helpers, add ipu-v3 V4L2 XRGB32/XBGR32 support - Convert imx_drm_suspend/resume to use the drm_mode_config_helper_suspend/ resume functions. - Add support for V4L2_PIX_FMT_XRGB32/XBGR32, corresponding to DRM_FORMAT_XRGB8888/BGRX8888, respectively. Signed-off-by: Dave Airlie From: Philipp Zabel Link: https://patchwork.freedesktop.org/patch/msgid/1533552701.4204.15.camel@pengutronix.de

drm/imx: Convert drm_atomic_helper_suspend/resume()

2018-08-01T07:39:00+00:00

convert drm_atomic_helper_suspend/resume() to use drm_mode_config_helper_suspend/resume(). with this conversion, the remaining member of struct imx_drm_device, state, will be no more useful and it could be removed forever. Signed-off-by: Souptick Joarder Signed-off-by: Ajit Negi [p.zabel@pengutronix.de: rebased onto drm-next, updated commit message] Signed-off-by: Philipp Zabel

Merge tag 'imx-drm-next-2018-07-20' of git://git.pengutronix.de/git/pza/linux into drm-next

2018-07-27T02:20:10+00:00

drm/imx: cleanup and csi improvements - Remove the unused struct imx_drm_crtc and the unused pipes field from imx_drm_device and replace drm_dev_unref with drm_dev_put. - Extend CSI configuration to support RGB888 and BGR888 capture, as well as 16-bit RGB565 capture via a parallel bus. - Add CPMEM support for negative interlace offsets, which is necessary to support writing captured bottom-top interlaced fields to memory with interleaved lines. Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/1532100583.3438.9.camel@pengutronix.de

drm/imx: Remove unused field imx_drm_device.pipes

2018-07-17T12:56:10+00:00

This has been unused since commit 44b460cfe554 ("drm: imx: remove struct imx_drm_crtc and imx_drm_crtc_helper_funcs") Signed-off-by: Leonard Crestez Signed-off-by: Philipp Zabel

drm/imx: Replace drm_dev_unref with drm_dev_put

2018-07-17T10:11:03+00:00

This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann Signed-off-by: Philipp Zabel

drm/imx: Remove last traces of struct imx_drm_crtc

2018-07-16T14:56:35+00:00

When the definition of this struct was removed a forward declaration and an unused struct member were still left around. Remove them because they serve no purpose. Fixes 44b460cfe554 ("drm: imx: remove struct imx_drm_crtc and imx_drm_crtc_helper_funcs") Signed-off-by: Leonard Crestez Reviewed-by: Fabio Estevam Signed-off-by: Philipp Zabel

drm/imx: imx-ldb: check if channel is enabled before printing warning

2018-07-16T14:56:34+00:00

If the second LVDS channel has been disabled in the DT when using dual-channel mode we should not print a warning. Signed-off-by: Lucas Stach Signed-off-by: Philipp Zabel

drm/imx: imx-ldb: disable LDB on driver bind

2018-07-16T14:56:34+00:00

The LVDS signal integrity is only guaranteed when the correct enable sequence (first IPU DI, then LDB) is used. If the LDB display output was active before the imx-drm driver is loaded (like when a bootsplash was active) the DI will be disabled by the full IPU reset we do when loading the driver. The LDB control registers are not part of the IPU range and thus will remain unchanged. This leads to the LDB still being active when the DI is getting enabled, effectively reversing the required enable sequence. Fix this by also disabling the LDB on driver bind. Signed-off-by: Lucas Stach Signed-off-by: Philipp Zabel