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2015-08-27Merge branch 'drm-dwhdmi-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm ↵Dave Airlie
into drm-next Here are some development updates for the Synopsis Designware HDMI driver, which clean up some of the code, and start preparing to add audio support to the driver. This series of patches are based on a couple of dependent commits from the ALSA tree. Briefly, the updates are: - move comments which should have moved with the phy values to the IMX part of the driver. - clean up the phy configuration: to all lookups before starting to program the phy. - clean up the HDMI clock regenerator code - use the drm_hdmi_avi_infoframe_from_display_mode() helper which allows the code to be subsequently simplified - remove the unused 'regmap' pointer in struct dw_hdmi - use the bridge drm device rather than the connector (we're the bridge code) - remove private hsync/vsync/interlaced flags, getting them from the DRM mode structure instead. - implement interface functions to support audio - setting the audio sample rate, and enabling the audio clocks. - removal of broken pixel repetition support - cleanup DVI vs HDMI sink handling - enable audio only if connected device supports audio - avoid double-enabling bridge in the sink path (once in mode_set, and again in commit) - rename mis-named dw_hdmi_phy_enable_power() - fix bridge enable/disable handing, so a plug-in event doesn't reconfigure the bridge if DRM has disabled the output - fix from Vladimir Zapolskiy for the I2CM_ADDRESS macro name These are primerily preparitory patches for the AHB audio driver and the I2S audio driver (from Rockchip) for this IP. * 'drm-dwhdmi-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: drm: bridge/dw_hdmi: fix register I2CM_ADDRESS register name drm: bridge/dw_hdmi: fix phy enable/disable handling drm: bridge/dw_hdmi: rename dw_hdmi_phy_enable_power() drm: bridge/dw_hdmi: avoid enabling interface in mode_set drm: bridge/dw_hdmi: enable audio only if sink supports audio drm: bridge/dw_hdmi: clean up HDMI vs DVI mode handling drm: bridge/dw_hdmi: don't support any pixel doubled modes drm: bridge/dw_hdmi: remove pixel repetition setting for all VICs drm: bridge/dw_hdmi: introduce interfaces to enable and disable audio drm: bridge/dw_hdmi: introduce interface to setting sample rate drm: bridge/dw_hdmi: remove mhsyncpolarity/mvsyncpolarity/minterlaced drm: bridge/dw_hdmi: use our own drm_device drm: bridge/dw_hdmi: remove unused 'regmap' struct member drm: bridge/dw_hdmi: simplify hdmi_config_AVI() a little drm: bridge/dw_hdmi: use drm_hdmi_avi_infoframe_from_display_mode() drm: bridge/dw_hdmi: clean up hdmi_set_clk_regenerator() drm: bridge/dw_hdmi: clean up phy configuration drm: imx/dw_hdmi: move phy comments drm/edid: add function to help find SADs
2015-08-18drm: bridge/dw_hdmi: introduce interfaces to enable and disable audioRussell King
iMX6 devices suffer from an errata (ERR005174) where the audio FIFO can be emptied while it is partially full, resulting in misalignment of the audio samples. To prevent this, the errata workaround recommends writing N as zero until the audio FIFO has been loaded by DMA. Writing N=0 prevents the HDMI bridge from reading from the audio FIFO, effectively disabling audio. This means we need to provide the audio driver with a pair of functions to enable/disable audio. These are dw_hdmi_audio_enable() and dw_hdmi_audio_disable(). A spinlock is introduced to ensure that setting the CTS/N values can't race, ensuring that the audio driver calling the enable/disable functions (which are called in an atomic context) can't race with a modeset. Tested-by: Yakir Yang <ykk@rock-chips.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-08-18drm: bridge/dw_hdmi: introduce interface to setting sample rateRussell King
Introduce dw_hdmi_set_sample_rate(), which allows us to configure the audio sample rate, setting the CTS/N values appropriately. Tested-by: Yakir Yang <ykk@rock-chips.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-05drm/bridge: Remove stale ptn3460.h includeThierry Reding
This header file declares prototypes of functions that are no longer used. Remove this file and all references to it. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-01drm: bridge/dw_hdmi: separate VLEVCTRL settting into platform driverYakir Yang
Because of iMX6 & Rockchip have differnet mpll config parameter, the VLEVCTRL parameter would be different. In this case we should separate VLEVCTRL setting from the common dw_hdmi driver, config this parameter in platform driver(dw_hdmi-imx and dw_hdmi-rockchip) Signed-off-by: Yakir Yang <ykk@rock-chips.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-28drm/bridge: make bridge registration independent of drm flowAjay Kumar
Currently, third party bridge drivers(ptn3460) are dependent on the corresponding encoder driver init, since bridge driver needs a drm_device pointer to finish drm initializations. The encoder driver passes the drm_device pointer to the bridge driver. Because of this dependency, third party drivers like ptn3460 doesn't adhere to the driver model. In this patch, we reframe the bridge registration framework so that bridge initialization is split into 2 steps, and bridge registration happens independent of drm flow: --Step 1: gather all the bridge settings independent of drm and add the bridge onto a global list of bridges. --Step 2: when the encoder driver is probed, call drm_bridge_attach for the corresponding bridge so that the bridge receives drm_device pointer and continues with connector and other drm initializations. The old set of bridge helpers are removed, and a set of new helpers are added to accomplish the 2 step initialization. The bridge devices register themselves onto global list of bridges when they get probed by calling "drm_bridge_add". The parent encoder driver waits till the bridge is available in the lookup table(by calling "of_drm_find_bridge") and then continues with its initialization. The encoder driver should also call "drm_bridge_attach" to pass on the drm_device to the bridge object. drm_bridge_attach inturn calls "bridge->funcs->attach" so that bridge can continue with drm related initializations. Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Tested-by: Rahul Sharma <rahul.sharma@samsung.com> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Tested-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-01-07drm: bridge/dw_hdmi: add rockchip rk3288 supportAndy Yan
Rockchip RK3288 hdmi is compatible with dw_hdmi Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2015-01-07drm: imx: imx-hdmi: move imx-hdmi to bridge/dw_hdmiAndy Yan
the original imx hdmi driver is under drm/imx/, which depends on imx-drm, so move the imx hdmi driver out to drm/bridge and rename it to dw_hdmi Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-03-24drm/bridge/ptn3460: fix modular buildDave Airlie
This failed to build =m, quick fix. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-24drm/bridge: Add PTN3460 bridge driverSean Paul
This patch adds a drm_bridge driver for the PTN3460 DisplayPort to LVDS bridge chip. Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>