From: Maxime Ripard <maxime.ripard@free-electrons.com> To: Rob Herring <robh+dt@kernel.org>, Daniel Vetter <daniel.vetter@intel.com>, David Airlie <airlied@linux.ie> Cc: devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, Chen-Yu Tsai <wens@csie.org>, Laurent Pinchart <laurent.pinchart@ideasonboard.com>, Maxime Ripard <maxime.ripard@free-electrons.com>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 0/7] drm: Add Support for Passive RGB to VGA bridges Date: Wed, 20 Jul 2016 11:58:50 +0200 [thread overview] Message-ID: <20160720095857.12297-1-maxime.ripard@free-electrons.com> (raw) Hi, This serie is about adding support for the RGB to VGA bridge found in the A13-Olinuxino and the CHIP VGA adapter. Both these boards rely on an entirely passive bridge made out of resitor ladders that do not require any initialisation. The only thing needed is to get the timings from the screen if available (and if not, fall back on XGA standards), set up the display pipeline to output on the RGB bus with the proper timings, and you're done. This serie also fixes a bunch of bugs uncovered when trying to increase the resolution, and hence the pixel clock, of our pipeline. It also fixes a few bugs in the DRM driver itself that went unnoticed before. Let me know what you think, Maxime Changes from v1: - Switch to using a vga-connector - Use drm_encoder bridge pointer instead of doing our own - Report the connector status as unknown instead of connected by default, and as connected only if we can retrieve the EDID. - Switch to of_i2c_get_adapter by node, and put the reference when done - Rebased on linux-next Maxime Ripard (7): drm/sun4i: Store TCON's device structure pointer drm/sun4i: Move panel retrieval in RGB connector drm/sun4i: Add bridge support drm/bridge: Add RGB to VGA bridge support ARM: sun5i: a13-olinuxino: Enable VGA bridge ARM: multi_v7: enable VGA bridge ARM: sunxi: Enable VGA bridge .../bindings/display/bridge/dumb-vga.txt | 54 +++++ arch/arm/boot/dts/sun5i-a13-olinuxino.dts | 60 ++++++ arch/arm/configs/multi_v7_defconfig | 1 + arch/arm/configs/sunxi_defconfig | 1 + drivers/gpu/drm/bridge/Kconfig | 6 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/dumb-vga.c | 232 +++++++++++++++++++++ drivers/gpu/drm/sun4i/sun4i_drv.c | 4 +- drivers/gpu/drm/sun4i/sun4i_rgb.c | 64 ++++-- drivers/gpu/drm/sun4i/sun4i_tcon.c | 52 ++++- drivers/gpu/drm/sun4i/sun4i_tcon.h | 4 + 11 files changed, 451 insertions(+), 28 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/bridge/dumb-vga.txt create mode 100644 drivers/gpu/drm/bridge/dumb-vga.c -- 2.9.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
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From: maxime.ripard@free-electrons.com (Maxime Ripard) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 0/7] drm: Add Support for Passive RGB to VGA bridges Date: Wed, 20 Jul 2016 11:58:50 +0200 [thread overview] Message-ID: <20160720095857.12297-1-maxime.ripard@free-electrons.com> (raw) Hi, This serie is about adding support for the RGB to VGA bridge found in the A13-Olinuxino and the CHIP VGA adapter. Both these boards rely on an entirely passive bridge made out of resitor ladders that do not require any initialisation. The only thing needed is to get the timings from the screen if available (and if not, fall back on XGA standards), set up the display pipeline to output on the RGB bus with the proper timings, and you're done. This serie also fixes a bunch of bugs uncovered when trying to increase the resolution, and hence the pixel clock, of our pipeline. It also fixes a few bugs in the DRM driver itself that went unnoticed before. Let me know what you think, Maxime Changes from v1: - Switch to using a vga-connector - Use drm_encoder bridge pointer instead of doing our own - Report the connector status as unknown instead of connected by default, and as connected only if we can retrieve the EDID. - Switch to of_i2c_get_adapter by node, and put the reference when done - Rebased on linux-next Maxime Ripard (7): drm/sun4i: Store TCON's device structure pointer drm/sun4i: Move panel retrieval in RGB connector drm/sun4i: Add bridge support drm/bridge: Add RGB to VGA bridge support ARM: sun5i: a13-olinuxino: Enable VGA bridge ARM: multi_v7: enable VGA bridge ARM: sunxi: Enable VGA bridge .../bindings/display/bridge/dumb-vga.txt | 54 +++++ arch/arm/boot/dts/sun5i-a13-olinuxino.dts | 60 ++++++ arch/arm/configs/multi_v7_defconfig | 1 + arch/arm/configs/sunxi_defconfig | 1 + drivers/gpu/drm/bridge/Kconfig | 6 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/dumb-vga.c | 232 +++++++++++++++++++++ drivers/gpu/drm/sun4i/sun4i_drv.c | 4 +- drivers/gpu/drm/sun4i/sun4i_rgb.c | 64 ++++-- drivers/gpu/drm/sun4i/sun4i_tcon.c | 52 ++++- drivers/gpu/drm/sun4i/sun4i_tcon.h | 4 + 11 files changed, 451 insertions(+), 28 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/bridge/dumb-vga.txt create mode 100644 drivers/gpu/drm/bridge/dumb-vga.c -- 2.9.0
next reply other threads:[~2016-07-20 9:58 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-07-20 9:58 Maxime Ripard [this message] 2016-07-20 9:58 ` [PATCH v2 0/7] drm: Add Support for Passive RGB to VGA bridges Maxime Ripard [not found] ` <20160720095857.12297-1-maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> 2016-07-20 9:58 ` [PATCH v2 1/7] drm/sun4i: Store TCON's device structure pointer Maxime Ripard 2016-07-20 9:58 ` Maxime Ripard 2016-07-20 9:58 ` [PATCH v2 2/7] drm/sun4i: Move panel retrieval in RGB connector Maxime Ripard 2016-07-20 9:58 ` Maxime Ripard 2016-07-20 9:58 ` [PATCH v2 3/7] drm/sun4i: Add bridge support Maxime Ripard 2016-07-20 9:58 ` Maxime Ripard 2016-07-20 9:58 ` [PATCH v2 4/7] drm/bridge: Add RGB to VGA " Maxime Ripard 2016-07-20 9:58 ` Maxime Ripard [not found] ` <20160720095857.12297-5-maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> 2016-07-20 19:34 ` Rob Herring 2016-07-20 19:34 ` Rob Herring 2016-07-21 9:53 ` Archit Taneja 2016-07-21 9:53 ` Archit Taneja 2016-08-22 13:37 ` Maxime Ripard 2016-08-22 13:37 ` Maxime Ripard 2016-07-20 9:58 ` [PATCH v2 5/7] ARM: sun5i: a13-olinuxino: Enable VGA bridge Maxime Ripard 2016-07-20 9:58 ` Maxime Ripard 2016-07-20 9:58 ` [PATCH v2 6/7] ARM: multi_v7: enable " Maxime Ripard 2016-07-20 9:58 ` Maxime Ripard 2016-07-20 9:58 ` [PATCH v2 7/7] ARM: sunxi: Enable " Maxime Ripard 2016-07-20 9:58 ` Maxime Ripard
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