kernel/drivers/gpu/drm/tegra/hdmi.c, branch linux-5.1.y

drm/tegra: hdmi: Setup audio only if configured

2019-04-17T07:28:43Z

The audio configuration is only valid if the HDMI codec has been properly set up. Do not attempt to set up audio before that happens because it causes a division by zero. Note that this is only problematic on Tegra20 and Tegra30. Later chips implement the division instructions which return zero when dividing by zero and don't throw an exception. Fixes: db5adf4d6dce ("drm/tegra: hdmi: Fix audio to work with any pixel clock rate") Reported-by: Marcel Ziswiler Tested-by: Dmitry Osipenko Signed-off-by: Thierry Reding

Merge tag 'drm/tegra/for-5.1-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

2019-02-11T03:32:49Z

drm/tegra: Changes for v5.1-rc1 This set of changes starts of with some refactoring of the CEC support to make it reusable on Tegra210 and later. Following are a couple of fixes for HDMI audio support (via HDA). The bulk here is a set of preparatory patches working towards enabling Tegra186 support for host1x and VIC. Additional patches will be needed to fully enable this, but they're not quite ready yet. To round things off, this also adds support for configuring the SOR crossbar using device tree, and fixes a couple of job-related issues in the host1x code. Signed-off-by: Dave Airlie From: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20190208144721.25830-1-thierry.reding@gmail.com

drm: Split out drm_probe_helper.h

2019-01-24T12:20:42Z

Having the probe helper stuff (which pretty much everyone needs) in the drm_crtc_helper.h file (which atomic drivers should never need) is confusing. Split them out. To make sure I actually achieved the goal here I went through all drivers. And indeed, all atomic drivers are now free of drm_crtc_helper.h includes. v2: Make it compile. There was so much compile fail on arm drivers that I figured I'll better not include any of the acks on v1. v3: Massive rebase because i915 has lost a lot of drmP.h includes, but not all: Through drm_crtc_helper.h > drm_modeset_helper.h -> drmP.h there was still one, which this patch largely removes. Which means rolling out lots more includes all over. This will also conflict with ongoing drmP.h cleanup by others I expect. v3: Rebase on top of atomic bochs. v4: Review from Laurent for bridge/rcar/omap/shmob/core bits: - (re)move some of the added includes, use the better include files in other places (all suggested from Laurent adopted unchanged). - sort alphabetically v5: Actually try to sort them, and while at it, sort all the ones I touch. v6: Rebase onto i915 changes. v7: Rebase once more. Acked-by: Harry Wentland Acked-by: Sam Ravnborg Cc: Sam Ravnborg Cc: Jani Nikula Cc: Laurent Pinchart Acked-by: Rodrigo Vivi Acked-by: Benjamin Gaignard Acked-by: Jani Nikula Acked-by: Neil Armstrong Acked-by: Oleksandr Andrushchenko Acked-by: CK Hu Acked-by: Alex Deucher Acked-by: Sam Ravnborg Reviewed-by: Laurent Pinchart Acked-by: Liviu Dudau Signed-off-by: Daniel Vetter Cc: linux-arm-kernel@lists.infradead.org Cc: virtualization@lists.linux-foundation.org Cc: etnaviv@lists.freedesktop.org Cc: linux-samsung-soc@vger.kernel.org Cc: intel-gfx@lists.freedesktop.org Cc: linux-mediatek@lists.infradead.org Cc: linux-amlogic@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: spice-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-tegra@vger.kernel.org Cc: xen-devel@lists.xen.org Link: https://patchwork.freedesktop.org/patch/msgid/20190117210334.13234-1-daniel.vetter@ffwll.ch

drm/tegra: hdmi: Fix audio to work with any pixel clock rate

2019-01-16T12:11:45Z

The audio setting implementation was limited to a few specific pixel clocks. This prevented HDMI audio from working on several test devices as they need a pixel clock that is not supported by this implementation. Fix this by implementing the algorithm provided in the TRM using fixed point arithmetic. This allows the driver to cope with any sane pixel clock rate. Signed-off-by: Alban Bedel [treding@nvidia.com: fix uninitialized variable warning] Signed-off-by: Thierry Reding

drm/tegra: hdmi: Reuse common HDA format parser

2019-01-16T12:10:33Z

Eliminate some duplicate code by reusing the HDA format parser already used by the SOR. Signed-off-by: Thierry Reding

drm/tegra: Refactor CEC support

2019-01-16T12:09:32Z

Most of the CEC support code already lives in the "output" library code. Move registration and unregistration to the library code as well to make use of the same code with HDMI on Tegra210 and later via the SOR. Signed-off-by: Thierry Reding Reviewed-by: Hans Verkuil Signed-off-by: Thierry Reding

drm/edid: Pass connector to AVI infoframe functions

2019-01-10T17:01:06Z

Make life easier for drivers by simply passing the connector to drm_hdmi_avi_infoframe_from_display_mode() and drm_hdmi_avi_infoframe_quant_range(). That way drivers don't need to worry about is_hdmi2_sink mess. v2: Make is_hdmi2_sink() return true for sil-sii8620 Adapt to omap/vc4 changes Cc: Alex Deucher Cc: "Christian König" Cc: "David (ChunMing) Zhou" Cc: Archit Taneja Cc: Andrzej Hajda Cc: Laurent Pinchart Cc: Inki Dae Cc: Joonyoung Shim Cc: Seung-Woo Kim Cc: Kyungmin Park Cc: Russell King Cc: CK Hu Cc: Philipp Zabel Cc: Rob Clark Cc: Ben Skeggs Cc: Tomi Valkeinen Cc: Sandy Huang Cc: "Heiko Stübner" Cc: Benjamin Gaignard Cc: Vincent Abriou Cc: Thierry Reding Cc: Eric Anholt Cc: Shawn Guo Cc: Ilia Mirkin Cc: amd-gfx@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: linux-tegra@vger.kernel.org Signed-off-by: Ville Syrjälä Acked-by: Thierry Reding Acked-by: Russell King Reviewed-by: Laurent Pinchart Reviewed-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-1-ville.syrjala@linux.intel.com

drm: drop _mode_ from drm_mode_connector_attach_encoder

2018-07-13T16:40:27Z

Again to align with the usual prefix of just drm_connector_. Again done with sed + manual fixup for indent issues. Reviewed-by: Sean Paul Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180709084016.23750-7-daniel.vetter@ffwll.ch

drm/tegra: hdmi: Register debugfs in ->late_register()

2017-12-13T12:42:07Z

The ->late_register() and ->early_unregister() callbacks are called at the right time to make sure userspace only accesses interfaces when it should. Move debugfs registration and unregistration to these callback functions to avoid potential races with userspace. Signed-off-by: Thierry Reding

drm/tegra: hdmi: Move register definitions into a table

2017-12-13T12:42:05Z

After commit 07a8aab89927 ("drm/tegra: hdmi: Trace register accesses"), the debugfs register dump implementation causes excessive stack usage and can result in build warnings. To fix this, move the register definitions into a table and iterate over the table while dumping the registers to debugfs. Signed-off-by: Thierry Reding