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path: root/drivers/gpu/drm/arm/malidp_hw.c (follow)
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2017-06-16drm/mali-dp: Check PM status when sharing interrupt linesLiviu Dudau1-3/+16
If an instance of Mali DP hardware shares the interrupt line with another hardware (usually another instance of the Mali DP) its interrupt handler can get called when the device is suspended. Check the PM status before making access to the hardware registers to avoid deadlocks. Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
2017-04-24drm: mali-dp: Check the mclk rate and allow up/down scalingMihail Atanassov1-0/+70
When downscaling, mclk needs to be sufficiently higher than pxlclk in order to be able to fetch the higher-resolution data and produce output pixels. When not scaling, or when upscaling, mclk can be equal to pxlclk. Since the driver doesn't control mclk, just ensure that the requirement is satisfied with the current clock rate. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
2017-04-24drm: mali-dp: Add plane upscaling supportMihail Atanassov1-0/+140
Enable the scaling engine for upscaling a single plane using the polyphase scaler. No image enhancement support or downscaling yet*, and composition result scaling is not implemented. * Downscaling a plane requires mclk > pxlclk. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
2017-04-24drm: mali-dp: enable gamma supportMihail Atanassov1-0/+3
Add gamma via the DRM GAMMA_LUT/GAMMA_LUT_SIZE CRTC properties. The expected LUT size is 4096 in order to produce as accurate a set of segments as possible. This version uses only the green channel's gamma curve to set the hardware curve on DP550/650. For the sake of simplicity, it uses the same table of coefficients for all 3 curves on DP500. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2017-03-10drm: mali-dp: Fix smart layer not going to compositionMihail Atanassov1-1/+1
Use rectangle 1 as a generic plane. Existing code already sets the smart layer bounding box size + offset. The rectangles' offsets are relative to the bounding box, so there is no need to set R1's offset (reset value is 0), just its size which is the same as the bounding box. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2017-01-26drm: mali-dp: fix stride setting for multi-plane formatsMihail Atanassov1-7/+10
Hardware has multiple (2 or 3, depending on model) stride registers per layer; add a function that correctly takes that into account. On hardware that only has 2 stride registers, ensure that 3-plane (YUV) content has identical strides for both chroma planes. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> [Removed smart layer stride setup, comment and commit message clarifications] Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
2017-01-26drm: mali-dp: Rename malidp_input_format to malidp_pixel_formatBrian Starkey1-12/+12
We're going to use the same format list for output formats, so rename everything related to input formats to avoid confusion. Signed-off-by: Brian Starkey <brian.starkey@arm.com> [touched commit title to clarify the final struct name] Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
2016-11-08drm: mali-dp: Clear CVAL when leaving config modeBrian Starkey1-0/+2
It's possible for CVAL to get set whilst we are in config mode. If this happens, afer we leave config mode the HW will latch whatever configuration is in the registers at the next vsync. Most likely this will be a partial configuration, as we'll be racing against the ongoing atomic_commit. To avoid this, clear CVAL before leaving config mode. Signed-off-by: Brian Starkey <brian.starkey@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
2016-11-04drm: mali-dp: Add pitch alignment check functionBrian Starkey1-0/+3
Different hardware versions have different requirements when it comes to pitch alignment. Add a function which can be used to check pitch alignment for a device. Signed-off-by: Brian Starkey <brian.starkey@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
2016-10-18drm/arm: mali-dp: Replace drm_fb_get_bpp_depth() with drm_format_plane_cpp()Laurent Pinchart1-6/+1
The driver doesn't need the color depth, only the number of bits per pixel. Use the right API. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/1476744081-24485-13-git-send-email-laurent.pinchart@ideasonboard.com
2016-06-15drm/arm: Add support for Mali Display ProcessorsLiviu Dudau1-0/+691
Add support for the new family of Display Processors from ARM Ltd. This commit adds basic support for Mali DP500, DP550 and DP650 parts, with only the display engine being supported at the moment. Cc: David Brown <David.Brown@arm.com> Cc: Brian Starkey <Brian.Starkey@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>