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* Merge 3.2-rc5 into staging-nextGreg Kroah-Hartman2011-12-09
|\ | | | | | | | | | | | | | | This resolves the conflict in the drivers/staging/iio/industrialio-core.c file due to two different changes made to resolve the same problem. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * staging: add omapdrm DRM/KMS driver for TI OMAP platformsRob Clark2011-11-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A DRM display driver for TI OMAP platform. Similar to omapfb (fbdev) and omap_vout (v4l2 display) drivers in the past, this driver uses the DSS2 driver to access the display hardware, including support for HDMI, DVI, and various types of LCD panels. And it implements GEM support for buffer allocation (for KMS as well as offscreen buffers used by the xf86-video-omap userspace xorg driver). The driver maps CRTCs to overlays, encoders to overlay-managers, and connectors to dssdev's. Note that this arrangement might change slightly when support for drm_plane overlays is added. For GEM support, non-scanout buffers are using the shmem backed pages provided by GEM core (In drm_gem_object_init()). In the case of scanout buffers, which need to be physically contiguous, those are allocated with CMA and use drm_gem_private_object_init(). See userspace xorg driver: git://github.com/robclark/xf86-video-omap.git Refer to this link for CMA (Continuous Memory Allocator): http://lkml.org/lkml/2011/8/19/302 Links to previous versions of the patch: v1: http://lwn.net/Articles/458137/ v2: http://patches.linaro.org/4156/ v3: http://patches.linaro.org/4688/ v4: http://patches.linaro.org/4791/ History: v5: move headers from include/drm at Greg KH's request, minor rebasing on 3.2-rc1, pull in private copies of drm_gem_{get,put}_pages() because "drm/gem: add functions to get/put pages" patch is not merged yet v4: bit of rework of encoder/connector _dpms() code, modeset_init() rework to not use nested functions, update TODO.txt v3: minor cleanups, improved error handling for dev_load(), some minor API changes that will be needed later for tiled buffer support v2: replace omap_vram with CMA for scanout buffer allocation, remove unneeded functions, use dma_addr_t for physical addresses, error handling cleanup, refactor attach/detach pages into common drm functions, split non-userspace-facing API into omap_priv.h, remove plugin API v1: original Signed-off-by: Rob Clark <rob@ti.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | OMAPDSS: DISPC: skip scaling calculations when not scalingTomi Valkeinen2011-11-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current code calculates scaling factors for video overlays even when the overlays are not scaled. Change the code to skip calculations when not scaling. This optimizes the code a bit, but also fixes a problem when configuring an overlay for a disabled display: if the display is disabled we don't necessarily know the pixel clock used when the display is enabled, and in some cases (like HDMI) the pixel clock is set to zero until a proper video mode is set later. A wrong pixel clock will mess up the scaling calculations, causing an error like: omapdss DISPC error: failed to set up scaling, required fclk rate = 0 Hz, current fclk rate = 170666666 Hz A proper fix would be to check later whether the clocks are enough for the scaling, at the point when the overlay or display is actually enabled, but this patch removes the problem for now. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* | OMAPDSS: HDMI: fix returned HDMI pixel clockTomi Valkeinen2011-11-18
|/ | | | | | | | hdmi_get_pixel_clock() returns the pixel clock in Hz, but the pck is stored as kHz. This means the return value has to be multiplied by 1000, not by 10000 as the code did. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* video: Add module.h to drivers/video files who really use it.Paul Gortmaker2011-10-31
| | | | | | | | | | They were getting this implicitly by an include of module.h from device.h -- but we are going to clean that up and break that include chain, so include module.h explicitly now. [ with contributions from Axel Lin <axel.lin@gmail.com> ] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* video: Add export.h for THIS_MODULE/EXPORT_SYMBOL to drivers/videoPaul Gortmaker2011-10-31
| | | | | | | | | With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* Merge branch 'for-florian' of git://gitorious.org/linux-omap-dss2/linux into ↵Florian Tobias Schandinat2011-10-14
|\ | | | | | | fbdev-next
| * OMAPDSS: picodlp: add missing #include <linux/module.h>Tomi Valkeinen2011-10-04
| | | | | | | | | | | | | | | | | | | | | | Compiling panel-picodlp.c failed with: drivers/video/omap2/displays/panel-picodlp.c:560:12: error: 'THIS_MODULE' undeclared here (not in a function) Add #include <linux/module.h> to get THIS_MODULE definition. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: zorder support for DSS overlaysArchit Taneja2011-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add zorder support on OMAP4, this feature allows deciding the visibility order of the overlays based on the zorder value provided as an overlay info parameter or a sysfs attribute of the overlay object. Use the overlay cap OMAP_DSS_OVL_CAP_ZORDER to determine whether zorder is supported for the overlay or not. Use dss feature FEAT_ALPHA_FREE_ZORDER if the caps are not available. Ensure that all overlays that are enabled and connected to the same manager have different zorders. Swapping zorders of 2 enabled overlays currently requires disabling one of the overlays. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: VIDEO3 pipeline supportArchit Taneja2011-10-03
| | | | | | | | | | | | | | | | | | | | | | Add support for VIDEO3 pipeline on OMAP4: - Add VIDEO3 pipeline information in dss_features and omapdss.h - Add VIDEO3 pipeline register coefficients in dispc.h - Create a new overlay structure corresponding to VIDEO3. - Make changes in dispc.c for VIDEO3 Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS/OMAP_VOUT: Fix incorrect OMAP3-alpha compatibility settingArchit Taneja2011-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On OMAP3, in order to enable alpha blending for LCD and TV managers, we needed to set LCDALPHABLENDERENABLE/TVALPHABLENDERENABLE bits in DISPC_CONFIG. On OMAP4, alpha blending is always enabled by default, if the above bits are set, we switch to an OMAP3 compatibility mode where the zorder values in the pipeline attribute registers are ignored and a fixed priority is configured. Rename the manager_info member "alpha_enabled" to "partial_alpha_enabled" for more clarity. Introduce two dss_features FEAT_ALPHA_FIXED_ZORDER and FEAT_ALPHA_FREE_ZORDER which represent OMAP3-alpha compatibility mode and OMAP4 alpha mode respectively. Introduce an overlay cap for ZORDER. The DSS2 user is expected to check for the ZORDER cap, if an overlay doesn't have this cap, the user is expected to set the parameter partial_alpha_enabled. If the overlay has ZORDER cap, the DSS2 user can assume that alpha blending is already enabled. Don't support OMAP3 compatibility mode for now. Trying to read/write to alpha_blending_enabled sysfs attribute issues a warning for OMAP4 and does not set the LCDALPHABLENDERENABLE/TVALPHABLENDERENABLE bits. Change alpha_enabled to partial_alpha_enabled in the omap_vout driver. Use overlay cap "OMAP_DSS_OVL_CAP_GLOBAL_ALPHA" to check if overlay supports alpha blending or not. Replace this with checks for VIDEO1 pipeline. Cc: linux-media@vger.kernel.org Cc: Lajos Molnar <molnar@ti.com> Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video/omap: fix build dependenciesArnd Bergmann2011-10-03
| | | | | | | | | | | | | | | | | | | | | | Four of the LCD panel drivers depend on the backlight class, so add the dependency in Kconfig. Selecting the BACKLIGHT_CLASS_DEVICE symbol does not generally work since it has other dependencies. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [tomi.valkeinen@ti.com: changed also N8x0 panel] Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: remove vaddr from overlay infoTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | overlay_info struct, used to configure overlays, currently includes both physical and virtual addresses for the pixels. The vaddr was added to support more exotic configurations where CPU would be used to update a display, but it is not currently used and there has been no interest in the feature. Using CPU to update a screen is also less interesting now that OMAP4 has two LCD outputs. This patch removes the vaddr field, and modifies the users of omapdss accordingly. This makes the use of omapdss a bit simpler, as the user doesn't need to think if it needs to give the vaddr. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: HDMI: Add support to dump registers through debugfsMythri P K2011-09-30
| | | | | | | | | | | | | | | | | | Add support to dump the HDMI wrapper, core, PLL and PHY registers through debugfs. Signed-off-by: Mythri P K <mythripk@ti.com> [tomi.valkeinen@ti.com: updated the description] Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: HDMI: Add missing register definitionsMythri P K2011-09-30
| | | | | | | | | | | | | | Add some of the missing register definitions, which are h/w indexable. Signed-off-by: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: HDMI: Replace hdmi_reg struct with u16Mythri P K2011-09-30
| | | | | | | | | | | | | | | | | | | | Remove usage of hdmi_reg struct to use u16 instead in the HDMI IP header file. hdmi_reg struct is not really needed, and the same change was also made for dispc earlier. Signed-off-by: Mythri P K <mythripk@ti.com> [tomi.valkeinen@ti.com: updated the description] Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: HDMI: Move the comments in avi infoframeMythri P K2011-09-30
| | | | | | | | | | | | | | | | Move the comments in AVI infoframe structure above each parameter to align with other comments in the header file. Signed-off-by: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: Add N800 panel driverTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a driver for N800's display, ported from the old omapfb. This is a slightly lighter version of the driver as not all features of the old driver can be ported without big changes to DSS2, and also because some of the HW features used in the old driver are unclear (e.g. the power management part). That said, the new driver works fine for basic use. Architecturally the driver is not as neat as it could be. N800's display HW consists of a display buffer chip and a panel, and ideally they would be represented by separate, independent drivers. This is not currently possible, and this driver contains both buffer chip and panel driver. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: Port the Apollon display driver to DSS2Tomi Valkeinen2011-09-30
| | | | | | | | | | | | | | Port the old omapfb panel driver for Apollon to DSS2. Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: Port the H4 display driver to DSS2Tomi Valkeinen2011-09-30
| | | | | | | | | | | | | | Port the old omapfb panel driver for H4 to DSS2. Cc: Imre Deak <imre.deak@nokia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: Port 2430sdp display driver to DSS2Tomi Valkeinen2011-09-30
| | | | | | | | | | | | Port the old omapfb panel driver for 2430SDP to DSS2. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: Taal: remove external backlight supportTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Taal panel driver supports two kinds of backlight control: 1) using DSI commands sent to the panel to control the backlight, 2) calling function pointers going to the board file to control the backlight. The second option is a bit hacky, and will no longer be needed when the PWM driver supports the backlight features. After that we can use the standard PWM backlight driver. This patch removes the second backlight control mechanism, and adds a boolean field, use_dsi_backlight, to nokia_dsi_panel_data which the board file can use to inform whether the panel driver should use DSI commands to control the backlight. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: FEATURES: Create a range param to get max downscalingArchit Taneja2011-09-30
| | | | | | | | | | | | | | | | | | Create a dss_range_param member called FEAT_PARAM_DOWNSCALE to get the maximum downscaling possible on the current platform. Use this in dispc_ovl_calc_scaling(). Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: Clean up scaling related clock and five tap calculationsArchit Taneja2011-09-30
| | | | | | | | | | | | | | | | | | Move DISPC scaling related code from dispc_ovl_setup() to a new function dispc_ovl_calc_scaling(). Use overlay caps to check if the overlay can scale or not. No functional changes are made. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: Remove hardcoded use of PPL in five tap clock calculationArchit Taneja2011-09-30
| | | | | | | | | | | | | | | | | | | | | | The function calc_fclk_five_taps() uses a fixed value of pixels per line which is used in calculations to get the minimum fclk needed for scaling with five taps to work. Remove this by providing the width of the panel connected to the manager. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: Get correct pixel clock for TV managerArchit Taneja2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | dispc_mgr_pclk_rate() is used to calculate minimum required functional clock for scaling in calc_fclk() and calc_fclk_five_taps(). This function returns the correct pixel clock for LCD and LCD2 managers, but not for TV manager. Extend this function so that it gets the correct pixel clock for TV manager. This also prevents the crash we get when we try to scale overlays connected to TV manager. The current code leads to a BUG() being executed if we call dispc_mgr_pclk_rate() for the TV manager. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: Create helper function dispc_mgr_is_lcd()Archit Taneja2011-09-30
| | | | | | | | | | | | | | | | Create a helper function called dispc_mgr_is_lcd() which returns true if the manager is LCD or LCD2. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: Pass overlay params as arguments to dispc_ovl_setup()Archit Taneja2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | dispc_ovl_enable_replication() and dispc_ovl_set_fifo_threshold() are currently called in configure_overlay(). These are the only functions which cause DISPC register writes of overlay parameters outside of dispc_ovl_setup(). Move these to dispc_ovl_setup() and pass replication, fifo_low and fifo_high thresholds as arguments to dispc_ovl_setup() in order to be aligned with other overlay parameters. No functional changes are made. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: Reduce the number of arguments in dispc_ovl_setup()Archit Taneja2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | dispc_ovl_setup() currently takes a large number of overlay arguments, most of these are members of the overlay_info struct. Replace these arguments by passing a overlay_info pointer instead. In configure_overlay(), we create an overlay_info struct called new_oi, this is a copy of the overlay cache's overlay_info member. Update the new_oi parameters which could have been possibly changed in configure_overlay(). Pass its pointer pointer to dispc_ovl_setup(). Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPFB: find best mode from edidTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | Use the new read_edid() function to get EDID information from the display (when available), and use the information to use a suitable mode at initialization time. Hot-plug is not yet supported, so the timings selected at init time will stay even if the monitor would be changed. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: panel-generic-dpi: remove "generic" panelTomi Valkeinen2011-09-30
| | | | | | | | | | | | Remove the "generic" panel config entry, which is not used. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: add panel-dvi driverTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have currently panel-generic-dpi driver, which is a combined driver for dummy panels and also for DVI output. The aim is to split the panel-generic-dpi into two, one for fixed size dummy panels connected via DPI, and the other (this) for variable resolution output which supports DDC channel (in practice a DVI framer chip connected to DPI output). Original i2c code by: Ricardo Salveti de Araujo <ricardo.salveti@canonical.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: implement detect()Tomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | Implement detect() by checking the hot plug detect status. The implementation is not very good, as it always turns on the HDMI output to get the detection working. HDMI driver needs improvements so that we could enable only core parts of it. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: remove error prints in check_timingsTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | check_timings() is supposed to be used to verify if timings are ok or not. Currently the HDMI driver prints error messages if the timings are not ok. This is not right, as it is no error to give invalid timings to check_timings(). Remove the error prints. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: clean up edid reading & fix checksumTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | Clean up reading of EDID by passing direct address to the block being read, instead of start address of the whole EDID memory area. Rewrite the loop which reads the EDID. This also fixes the checksum calculation, which used to calculate the checksum only for the first block. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: split hdmi_core_ddc_edidTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | Split the DDC initialization off from hdmi_core_ddc_edid() into a separate function hdmi_core_ddc_init(). This cleans up the implementation. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: remove edid parsingTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | OMAPFB handles EDID parsing now, using the common helper functions in fbdev. We can remove the EDID parsing from HDMI driver. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: implement read_edid()Tomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | Implement read_edid() for HDMI by implementing necessary functions to hdmi.c and to hdmi_omap4_panel.c. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: make set_timing sanerTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | Currently the set_timings code for hdmi is quite strange. The display is disabled in hdmi_omap4_panel.c before setting timings, and enabled in hdmi.c after setting the timings. Furthermore, the timings were not permanent, and disabling and enabling the display would lose them. This patch makes the set_timings handling a bit better. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: improve hdmi output enableTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabling HDMI output often causes sync lost errors, and almost always causes timeout errors being printed from dispc_mgr_enable_digit_out(). The sync lost problem seems to go lessen greatly if we first enable the HDMI output, and only then enable the DISPC output. However, as this is only based on observations, the fix may not be perfect as the problem may lie somewhere else. Nevertheless, HDMI works better with this patch. This will also fix the dispc's dispc_mgr_enable_digit_out(), as the code waits for two VSYNCs after enabling the output. If the HDMI output is disabled (as it was previously), there are no VSYNCs and dispc_mgr_enable_digit_out() will print timeout errors. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: DISPC: improve dispc_mgr_enable_digit_out()Tomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | dispc_mgr_enable_digit_out() didn't handle HDMI case very well. Improve the function to use FRAMEDONETV interrupt to see when HDMI has been disabled. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: add dss_get_hdmi_venc_clk_source()Tomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | Add dss_get_hdmi_venc_clk_source(), which can be used to get the value programmed with dss_select_hdmi_venc_clk_source(). This can be used to find out if the digit output is going to VENC or HDMI. For OMAP2/3 dss_get_hdmi_venc_clk_source() always returns DSS_VENC_TV_CLK. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: change regn definitionTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | regn divider is currently programmed to the registers without change, but when calculating clock frequencies it is used as regn+1. To make this similar to how DSI handles the dividers this patch changes the regn value to be used as such for calculations, but the value programmed to registers is regn-1. This simplifies the clock frequency calculations, makes it similar to DSI, and also allows us to use regn value 0 as undefined. Cc: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: HDMI: use default dividersTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | Use default regn and regm2 dividers in the hdmi driver if the board file does not define them. Cc: Mythri P K <mythripk@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP: DSS2: DISPC: Fix minimum PCD valueTomi Valkeinen2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current driver had a hardcoded minimum value of 2 for pixel clock divisor (PCD). This doesn't seem to be right. OMAP4 TRM says that PCD can be 1 when not downscaling, and inverted pixel clock (IPC) is off. OMAP3 TRM says the same, but also in the register descriptions that PCD value 1 is invalid. OMAP2 TRM says PCD 2 is the minimum. OMAP2 is still untested, but for both OMAP3 and OMAP4 PCD of 1 seems to work fine. This patch adds a new DSS feature, FEAT_PARAM_DSS_PCD, which is used to find the minimum and maximum PCD. The minimum is set to 2 for OMAP2, and 1 for OMAP3/4. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP4: DSS2: Rename hdmi_omap4_panel.c to hdmi_panel.cMythri P K2011-09-30
| | | | | | | | | | | | | | | | As the panel driver will remain generic across OMAP's renaming it to hdmi_panel.c Signed-off-by: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP4: DSS2: HDMI: Function pointer approach to callMythri P K2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HDMI IP fundamentally has replaceable core PHY and PLL blocks. These blocks might vary across OMAP's but the end functionality such as to enable or disable PLL, PHY, function to read EDID would remain the same. Thus to make the current hdmi DSS driver compatible with different OMAP's having different IP blocks( A combination of different core, PHY, PLL blocks), function pointer approach is introduced. With function pointer, relevant IP dependent functions are mapped to the generic functions used by DSS during the initialization based on the OMAP compiled. Thus making hdmi DSS driver IP agnostic. Signed-off-by: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP4: DSS2: HDMI: Rename the functions in HDMI IP libraryMythri P K2011-09-30
| | | | | | | | | | | | | | | | | | Functions that are included in HDMI IP driver is renamed to have IP specific names so that it will not conflict with similar functions from other IP. Signed-off-by: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP4: DSS2: HDMI: Move the HDMI IP dependent audioMythri P K2011-09-30
| | | | | | | | | | | | | | Move HDMI IP dependent audio functions from HDMI DSS file to IP library. Signed-off-by: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAP4: DSS2: HDMI: Split the current HDMI driver to moveMythri P K2011-09-30
| | | | | | | | | | | | | | | | | | | | Split the current HDMI driver to move the HDMI IP dependent ( PLL/PHY/Core configuration code) to a new IP file (ti_hdmi_4xxx_ip.c. This is to separate IP dependent OMAP agnostic code from OMAP specific DSS dependent code. Signed-off-by: Mythri P K <mythripk@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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