linux/drivers/gpu/drm/arm, branch v4.7

drm: hdlcd: Add information about the underlying framebuffers in debugfs

2016-06-02T16:45:55Z

drm_fb_cma code has a nice helper function to display in the debugfs information about the underlying framebuffers used by HDLCD: $ cat /sys/kernel/debug/dri/0/fb fb: 1920x1200@XR24 0: offset=0 pitch=7680, obj: 0 ( 2) 001011ba 0x00000000fc300000 ffffff800a27c000 9338880 fb: 1920x1200@XR24 0: offset=0 pitch=7680, obj: 0 ( 2) 001008ca 0x00000000fba00000 ffffff8009987000 9338880 fb: 1920x1200@XR24 0: offset=0 pitch=7680, obj: 0 ( 1) 00100000 0x00000000fb100000 ffffff8008fdc000 9216000 Add the entry in HDLCD's debugfs node. Signed-off-by: Liviu Dudau

drm: hdlcd: Cleanup the atomic plane operations

2016-06-02T16:45:29Z

Harden the plane_check() code to drop attempts at scaling because that is not supported. Make hdlcd_plane_atomic_update() set the pitch and line length registers that correctly reflect the plane's values. And make hdlcd_crtc_mode_set_nofb() a helper function for hdlcd_crtc_enable() rather than an exposed hook. Cc: Daniel Vetter Signed-off-by: Liviu Dudau

drm/hdlcd: Fix up crtc_state->event handling

2016-06-02T16:44:05Z

event_list just reimplemented what drm_crtc_arm_vblank_event does. And we also need to send out drm events when shutting down a pipe. With this it's possible to use the new nonblocking commit support in the helpers. Signed-off-by: Daniel Vetter Acked-by: Liviu Dudau

drm: hdlcd: Revamp runtime power management

2016-06-02T16:43:59Z

Because the HDLCD driver acts as a component master it can end up enabling the runtime PM functionality before the encoders are initialised. This can cause crashes if the component slave never probes (missing module) or if the PM operations kick in before the probe finishes. Move the enabling of the runtime PM after the component master has finished collecting the slave components and use the DRM atomic helpers to suspend and resume the device. Tested-by: Robin Murphy Signed-off-by: Liviu Dudau

drm: Nuke ->vblank_disable_allowed

2016-05-20T21:03:31Z

This was added in commit 0a3e67a4caac273a3bfc4ced3da364830b1ab241 Author: Jesse Barnes Date: Tue Sep 30 12:14:26 2008 -0700 drm: Rework vblank-wait handling to allow interrupt reduction. to stay backwards-compatible with old UMS code that didn't even tell the kernel when it did a modeset, so that the kernel could save/restore vblank counters. At worst this means vblanks will be somewhat funky on a setup that very likely no one still runs. So let's just nuke it. Plan B would be to set it unconditionally in drm_vblank_init for kms drivers, instead of in each driver separately. So if this patch breaks anything please only restore the hunks in drmP.h and drm_irq.c, plus add a check for DRIVER_MODESET in drm_vblank_init. Stumbled over this in a discussion on irc with Chris. Cc: Chris Wilson Cc: Alex Deucher Cc: Liviu Dudau Cc: Russell King Cc: Thierry Reding Cc: Eric Anholt Cc: Laurent Pinchart Cc: Inki Dae Cc: Tomi Valkeinen Cc: Mark Yao Cc: Sascha Hauer Cc: Philipp Zabel Signed-off-by: Daniel Vetter Reviewed-by: Alex Deucher Acked-by: Liviu Dudau Acked-by: Laurent Pinchart Tested-by: Laurent Pinchart Signed-off-by: Dave Airlie

drm/arm/hdlcd: Rename async to nonblock.

2016-05-02T14:36:09Z

The async name is deprecated and should be changed to nonblocking. Cc: Liviu Dudau Signed-off-by: Maarten Lankhorst Acked-by: Liviu Dudau Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1461679905-30177-4-git-send-email-maarten.lankhorst@linux.intel.com

drm: ARM HDLCD - fix an error code

2016-04-04T09:11:33Z

We accidentally return PTR_ERR(NULL) which is success instead of a negative error code. Fixes: 879e40bea6f2 ('drm: ARM HDLCD - get rid of devm_clk_put()') Signed-off-by: Dan Carpenter Signed-off-by: Liviu Dudau

drm: ARM HDLCD - get rid of devm_clk_put()

2016-04-04T09:10:58Z

Clock is acquired with devm_clk_get() which already manages corresponding resource. I.e. in case of driver removal or failure on installaiton clock resources will be automatically released and explicit call of devm_clk_put() is not required. Cc: Arnd Bergmann Cc: Daniel Vetter Cc: David Airlie Cc: Robin Murphy Signed-off-by: Alexey Brodkin Signed-off-by: Liviu Dudau

drm: Add support for ARM's HDLCD controller.

2016-02-10T13:44:16Z

The HDLCD controller is a display controller that supports resolutions up to 4096x4096 pixels. It is present on various development boards produced by ARM Ltd and emulated by the latest Fast Models from the company. Cc: David Airlie Cc: Robin Murphy Signed-off-by: Liviu Dudau [Kconfig cleanup and !CONFIG_PM fixes] Signed-off-by: Arnd Bergmann Acked-by: Daniel Vetter