dri-devel April 2014

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962 discussions

[RFC 0/4] drm: exynos: Add drivers for MDNIE and IELCD
by Ajay Kumar 01 Apr '14

01 Apr '14

This series is based on exynos-drm-next-todo branch of Inki Dae's tree at: git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git On Exynos SOC, FIMD supports various post processors like MIE, MDNIE and IELCD for image enhancement purposes. This patchset adds an infrastructure in exynos FIMD to support such post procerssors and also adds support routines for MDNIE, and IELCD. (1) For basic display output, -- MDNIE and IELCD should have same video timings as FIMD (mode_set) -- strict power_up/down sequence need to be followed between FIMD, MDNIE, and IELCD (power_on, power_off) (2) For enhanced display output, -- MDNIE needs image enhancement data from userspace (set_property and set_gamma) Rahul Sharma's patchset at: http://comments.gmane.org/gmane.linux.kernel.samsung-soc/27642 The above patchset is needed to support the enhanced display output. MDNIE and IELCD DT nodes are given as phandles to FIMD DT node. SOC specific information like base address, clocks and other configuration information are extracted via FIMD DT node. Ajay Kumar, Shirish, Rahul Sharma (4): drm: exynos: Add infrastructure to support FIMD post processors drm: exynos: add MDNIE post processor drm: exynos: add IELCD post processor drm: exynos: add MDNIE and IELCD to FIMD pp list drivers/gpu/drm/exynos/Makefile | 3 +- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 179 ++++++++ drivers/gpu/drm/exynos/exynos_fimd_pp.h | 54 +++ drivers/gpu/drm/exynos/exynos_ielcd.c | 295 ++++++++++++ drivers/gpu/drm/exynos/exynos_mdnie.c | 707 +++++++++++++++++++++++++++++ drivers/gpu/drm/exynos/exynos_mdnie_regs.h | 154 +++++++ include/video/samsung_fimd.h | 49 +- 7 files changed, 1439 insertions(+), 2 deletions(-) create mode 100644 drivers/gpu/drm/exynos/exynos_fimd_pp.h create mode 100644 drivers/gpu/drm/exynos/exynos_ielcd.c create mode 100644 drivers/gpu/drm/exynos/exynos_mdnie.c create mode 100644 drivers/gpu/drm/exynos/exynos_mdnie_regs.h -- 1.8.1.2

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[PATCH] drm: Prefer noninterlace cmdline mode unless explicitly specified
by Takashi Iwai 01 Apr '14

01 Apr '14

Currently drm_pick_cmdline_mode() doesn't care about the interlace when the given mode line has no "i" suffix. That is, when there are multiple entries for the same resolution, an interlace mode might be picked up just depending on the assigned order, and there is no way to exclude it. This patch changes the logic for the mode selection, to prefer the noninterlace mode unless the interlace mode is explicitly given. When no matching mode is found, it still tries the interlace mode as fallback. Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- drivers/gpu/drm/drm_fb_helper.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 98a03639b413..0a4b0a24359f 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1162,6 +1162,7 @@ static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_conne { struct drm_cmdline_mode *cmdline_mode; struct drm_display_mode *mode = NULL; + bool prefer_non_interlace; cmdline_mode = &fb_helper_conn->cmdline_mode; if (cmdline_mode->specified == false) @@ -1173,6 +1174,8 @@ static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_conne if (cmdline_mode->rb || cmdline_mode->margins) goto create_mode; + prefer_non_interlace = !cmdline_mode->interlace; + again: list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { /* check width/height */ if (mode->hdisplay != cmdline_mode->xres || @@ -1187,10 +1190,18 @@ static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_conne if (cmdline_mode->interlace) { if (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) continue; + } else if (prefer_non_interlace) { + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + continue; } return mode; } + if (prefer_non_interlace) { + prefer_non_interlace = false; + goto again; + } + create_mode: mode = drm_mode_create_from_cmdline_mode(fb_helper_conn->connector->dev, cmdline_mode); -- 1.9.0

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dri-devel April 2014