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* video: move fbdev to drivers/video/fbdevTomi Valkeinen2014-04-1759-37355/+0
| | | | | | | | | | | | | | | | | | | | The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* OMAPDSS: Change struct reg_field to dispc_reg_fieldJyri Sarha2014-04-142-9/+9
| | | | | | | | | Avoid colision with regmap's struct reg_field definition by renaming omapdss's struct reg_field to dispc_reg_field, and moving it inside dispc.c as that's the only place it is used. Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: Take pixelclock unit change into account in hdmi_compute_acr()Jyri Sarha2014-04-141-4/+4
| | | | | | | | Pixelclock unit change from kHz to Hz should be taken into account in CTS value calculations in hdmi_compute_acr(). Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: fix shared irq handlersTomi Valkeinen2014-04-142-7/+68
| | | | | | | | | | | | | | | | | | | | | | DSS uses shared irq handlers for DISPC and DSI, because on OMAP3, the DISPC and DSI share the same irq line. However, the irq handlers presume that the hardware is enabled, which, in theory, may not be the case with shared irq handlers. So if an interrupt happens while the DISPC/DSI is off, the kernel will halt as the irq handler tries to access the DISPC/DSI registers. In practice that should never happen, as both DSI and DISPC are in the same power domain. So if there's an IRQ for one of them, the other is also enabled. However, if CONFIG_DEBUG_SHIRQ is enabled, the kernel will generate a spurious IRQ, which then causes the problem. This patch adds an is_enabled field for both DISPC and DSI, which is used to track if the HW is enabled. For DISPC the code is slightly more complex, as the users of DISPC can register the interrupt handler, and we want to hide the is_enabled handling from the users of DISPC. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: fix rounding when calculating fclk rateTomi Valkeinen2014-04-141-2/+2
| | | | | | | | | | | | | "clk: divider: fix rate calculation for fractional rates" patch (and similar for TI specific divider) fixes the clk-divider's rounding. This patch updates the DSS driver to round the rates accordingly. This fixes the DSS's warnings about clock rate mismatch, and also fixes the wrong fclk rate being set. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Tested-by: Christoph Fritz <chf.fritz@googlemail.com> Tested-by: Marek Belisko <marek@goldelico.com>
* OMAPDSS: HDMI: fix interlace outputTomi Valkeinen2014-04-041-0/+2
| | | | | | | The HDMI output video format's yres needs to be divided by two for interlace. Fix it. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: add missing __init for dss_init_portsTomi Valkeinen2014-04-041-1/+1
| | | | | | dss_init_ports() is missing __init, so fix that. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: remove DT hacks for regulatorsTomi Valkeinen2014-04-042-18/+4
| | | | | | | | For booting Panda and 4430SDP with DT, while DSS did not support DT, we had to had small hacks in the omapdss driver to get the regulators. With DT now supported in DSS, we can remove those hacks. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* Merge branch '3.15/dss-dt' into 3.15/fbdevTomi Valkeinen2014-03-2019-42/+935
|\ | | | | | | Merge OMAP DSS DT support
| * OMAPDSS: acx565akm: Add DT supportSebastian Reichel2014-03-191-1/+32
| | | | | | | | | | | | | | | | | | Add DT support for panel-sony-acx565akm Signed-off-by: Sebastian Reichel <sre@debian.org> [tomi.valkeinen@ti.com: some modifications] Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: connector-analog-tv: Add DT supportTomi Valkeinen2014-03-191-2/+41
| | | | | | | | | | | | | | Add DT support for connector-analog-tv. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: hdmi-connector: Add DT supportTomi Valkeinen2014-03-191-0/+30
| | | | | | | | | | | | | | Add DT support for hdmi-connector. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: encoder-tpd12s015: Add DT supportTomi Valkeinen2014-03-191-0/+56
| | | | | | | | | | | | | | Add DT support for encoder-tpd12s015. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: connector-dvi: Add DT supportTomi Valkeinen2014-03-191-0/+43
| | | | | | | | | | | | | | Add DT support for connector-dvi. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: encoder-tfp410: Add DT supportTomi Valkeinen2014-03-191-1/+42
| | | | | | | | | | | | | | Add DT support for encoder-tfp410. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: panel-dsi-cm: Add DT supportTomi Valkeinen2014-03-191-4/+56
| | | | | | | | | | | | | | Add DT support for panel-dsi-cm. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: Add DT support to DSITomi Valkeinen2014-03-191-1/+138
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the code to make the DSI driver work with device tree on OMAP3 and OMAP4. A minor hack is needed at the moment in the DSI driver: the DSS driver needs to know the ID number of a DSI device, as clocks are routed in different ways to the DSI devices. At the moment we don't have any proper way to manage this, so this patchs adds a simple lookup table that is used to deduce the ID from the DSI device's base address. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: Add DT support to VENCTomi Valkeinen2014-03-191-0/+61
| | | | | | | | | | | | | | | | | | | | Add DT support to VENC. In contrast to non-DT version, the DT version gets the invert-polarity and connector type via venc's endpoint, not from the connector. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: Add DT support to HDMITomi Valkeinen2014-03-191-0/+6
| | | | | | | | | | | | | | | | Add DT support to HDMI driver. The only thing needed for DT support here is the of_match_table. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: Add DT support to DISPCTomi Valkeinen2014-03-191-0/+8
| | | | | | | | | | | | | | Add DT support to DISPC. Only thing needed here is the of_match_table. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: Add DT support to DSSTomi Valkeinen2014-03-194-0/+164
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add DT support for DSS. Contrary to the non-DT version, the DSS in DT mode contains DPI and SDI outputs, which better reflects the hardware. The non-DT code will be removed after all boards have been converted to DT, so there's no need to change the non-DT code to act the same way. The code for DPI and SDI needs to be refined later to make it possible to add multiple DPI ports. For now, handling just a single DPI port is enough for all the boards. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: Improve regulator names for DTTomi Valkeinen2014-03-193-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The regulator names used for DSS components are somewhat ugly for DT use. As we're just adding DT support, it's simple to change the regulator names. This patch makes the DSS driver get the regulators with somewhat cleaner names when bootin with DT. For example, this allows us to define HDMI's VDDA regulator in the DT data as: vdda-supply = <...>; instead of vdda_hdmi_dac-supply = <...>; Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: add of helpersTomi Valkeinen2014-03-192-1/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | Add helpers to get ports and endpoints from DT data. These helpers parse v4l2 style ports and endpoints, but compared to the v4l2 helpers, these allow iterating ports and endpoints separately. This is a temporary solution until we get generic code to parse the ports and endpoints. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPFB: search for default display with DT aliasTomi Valkeinen2014-03-191-1/+22
| | | | | | | | | | | | | | | | | | Improve the search for the default display in two ways: * compare the given display name to the display's alias * if no display name is given, look for "display0" DT alias Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPFB: clean up default display searchTomi Valkeinen2014-03-191-17/+29
| | | | | | | | | | | | | | | | Separate the code for finding the default display into a function for clarity and to make it easier to extend it in the future. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: get dssdev->alias from DT aliasTomi Valkeinen2014-03-191-2/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently create a "displayX" style alias name for all displays, using a number that is incremented for each registered display. With the new DSS device model there is no clear order in which the displays are registered, and thus the numbering is somewhat random. This patch improves the behavior for DT case so that if the displays have been assigned DT aliases, those aliases will be used as DSS aliases. This means that "display0" is always the one specified in the DT alias, and thus display0 can be used as default display in case the user didn't specify a default display. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: add 'label' support for DTTomi Valkeinen2014-03-191-0/+9
| | | | | | | | | | | | | | | | | | Add support to get the label (i.e. a "nickname") for a display from the DT data. If there is no label defined, use the display's alias (e.g. 'display0') as a name. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
| * OMAPDSS: fix fck field typesTomi Valkeinen2014-02-112-2/+2
| | | | | | | | | | | | | | | | | | | | 'fck' field in dpi and sdi clock calculation struct is 'unsigned long long', even though it should be 'unsigned long'. This hasn't caused any issues so far. Fix the field's type. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * OMAPDSS: DISPC: decimation rounding fixTomi Valkeinen2014-02-111-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver uses DIV_ROUND_UP when calculating decimated width & height. For example, when decimating with 3, the width is calculated as: width = DIV_ROUND_UP(width, decim_x); This yields bad results for some values. For example, 800/3=266.666..., which is rounded to 267. When the input width is set to 267, and pixel increment is set to 3, this causes the dispc to read a line of 801 pixels, i.e. it reads a wrong pixel at the end of the line. Even more pressing, the above rounding causes a BUG() in pixinc(), as the value of 801 is used to calculate row increment, leading to a bad value being passed to pixinc(). This patch fixes the decimation by removing the DIV_ROUND_UP()s when calculating width and height for decimation. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* | OMAPDSS: convert pixel clock to common videomode styleTomi Valkeinen2014-03-0521-96/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | omapdss has its own video-timings struct, but we want to move the common videomode. The first step is to change the omapdss's pixelclock unit from kHz to Hz. Also, omapdss uses "pixel_clock" field name, whereas the common videomode uses "pixelclock" field name. This patch changes the field name also, as that makes it easy to spot any non-converted pixel_clock uses. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* | OMAPDSS: Remove unused get_context_loss_count supportTomi Valkeinen2014-02-282-18/+0
| | | | | | | | | | | | | | | | The omapdss driver no longer uses get_context_loss_count call, so we can remove it. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
* | OMAPDSS: use DISPC register to detect context lossTomi Valkeinen2014-02-281-13/+11
|/ | | | | | | | | | | | | | Instead of relying on the OMAP specific omap_pm_get_dev_context_loss_count() to detect register context loss, we can achieve the same in a much simpler way by just observing the DISPC registers. We always set DISPC's load mode to LOAD_FRAME_ONLY, which is not the reset value. Thus we can just observe the load mode to see if we have lost register context. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit@ti.com>
* Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2014-01-301-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm updates from Dave Airlie: "Been a bit busy, first week of kids school, and waiting on other trees to go in before I could send this, so its a bit later than I'd normally like. Highlights: - core: timestamp fixes, lots of misc cleanups - new drivers: bochs virtual vga - vmwgfx: major overhaul for their nextgen virt gpu. - i915: runtime D3 on HSW, watermark fixes, power well work, fbc fixes, bdw is no longer prelim. - nouveau: gk110/208 acceleration, more pm groundwork, old overlay support - radeon: dpm rework and clockgating for CIK, pci config reset, big endian fixes - tegra: panel support and DSI support, build as module, prime. - armada, omap, gma500, rcar, exynos, mgag200, cirrus, ast: fixes - msm: hdmi support for mdp5" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (595 commits) drm/nouveau: resume display if any later suspend bits fail drm/nouveau: fix lock unbalance in nouveau_crtc_page_flip drm/nouveau: implement hooks for needed for drm vblank timestamping support drm/nouveau/disp: add a method to fetch info needed by drm vblank timestamping drm/nv50: fill in crtc mode struct members from crtc_mode_fixup drm/radeon/dce8: workaround for atom BlankCrtc table drm/radeon/DCE4+: clear bios scratch dpms bit (v2) drm/radeon: set si_notify_smc_display_change properly drm/radeon: fix DAC interrupt handling on DCE5+ drm/radeon: clean up active vram sizing drm/radeon: skip async dma init on r6xx drm/radeon/runpm: don't runtime suspend non-PX cards drm/radeon: add ring to fence trace functions drm/radeon: add missing trace point drm/radeon: fix VMID use tracking drm: ast,cirrus,mgag200: use drm_can_sleep drm/gma500: Lock struct_mutex around cursor updates drm/i915: Fix the offset issue for the stolen GEM objects DRM: armada: fix missing DRM_KMS_FB_HELPER select drm/i915: Decouple GPU error reporting from ring initialisation ...
| * drm/omap: fix (un)registering irqs inside an irq handlerTomi Valkeinen2014-01-091-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | omapdrm (un)registers irqs inside an irq handler. The problem is that the (un)register function uses dispc_runtime_get/put() to enable the clocks, and those functions are not irq safe by default. This was kind of fixed in 48664b21aeeffb40c5fa06843f18052e2c4ec9ef (OMAPDSS: DISPC: set irq_safe for runtime PM), which makes dispc's runtime calls irq-safe. However, using pm_runtime_irq_safe in dispc makes the parent of dispc, dss, always enabled, effectively preventing PM for the whole DSS module. This patch makes omapdrm behave better by adding new irq (un)register functions that do not use dispc_runtime_get/put, and using those functions in interrupt context. Thus we can make dispc again non-irq-safe, allowing proper PM. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Rob Clark <robdclark@gmail.com>
| |
| \
*-. \ Merge branches '3.14/fbdev', '3.14/dss-misc' and '3.14/dss-fclk' into for-nextTomi Valkeinen2014-01-2022-290/+412
|\ \ \ | |_|/ |/| | | | | Merge fbdev topic branches
| | * OMAPDSS: add dedicated fck PLL supportTomi Valkeinen2013-11-181-9/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for SoCs that have a dedicated DSS PLL used for DSS function clock. If there is no dss parent clock defined, it is presumed that the functionl clock rate can be set (almost) freely. The code calculates the highest allowed fck rate, which when divided with some integer gives the required pck. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| | * OMAPDSS: pass pck to dss fck clock calcTomi Valkeinen2013-11-184-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need the required pixel clock rate when calculating the dss fclk on SoCs that have a dedicated DSS PLL. This patch changes the code to pass the pck to the calc functions. The pck rate is taken into use in the next patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| | * OMAPDSS: cleanup fck parent handlingTomi Valkeinen2013-11-182-28/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dss parent_clk_name currently points to a clock node which we use to change the fclk rate. Now that we have CLK_SET_RATE_PARENT properly set, we can set the rate directly to the fclk node. However, we still need to calculate the possible clock rates. For this, we need the rate of the parent of the current parent_clk. To simplify the code, this patch changes the parent_clk_name to point to the above mentioned parent, so that we can get the rate directly. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| | * OMAPDSS: rename parent clk variablesTomi Valkeinen2013-11-181-20/+20
| | | | | | | | | | | | | | | | | | | | | | | | Rename the variables related to DSS fclk's parent: "clk_name" and "dpll4_m4_ck", to "parent_clk_name" and "parent_clk", which much better tell what they mean. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| | * OMAPDSS: simplify dss clk dumpTomi Valkeinen2013-11-181-17/+3
| | | | | | | | | | | | | | | | | | | | | Simplify dss_dump_clocks() so that it doesn't make any presumptions about the DSS fclks nature. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| | * OMAPDSS: remove struct dss_clock_infoTomi Valkeinen2013-11-184-74/+30
| | | | | | | | | | | | | | | | | | | | | | | | Remove struct dss_clock_info, as it is not usable in a case where DSS fclk comes from a dedicated PLL. Instead, just use the fclk rate in place of dss_clock_info, as that is all that's needed. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| | * OMAPDSS: fix omap2 dss fck handlingTomi Valkeinen2013-11-181-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver considers OMAP2 DSS's functional clock as a fixed clock. However, it can be changed, but the possible dividers are not continuous which is why it was just handled as a fixed clock. As a partial fix, this patch changes the code to handle the continous part of the dividers, from 1 to 6. This let's us handle the OMAP2 fck the same way as fcks on other OMAPs. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | OMAPDSS: DISPC: Fix 34xx overlay scaling calculationIvaylo Dimitrov2014-01-141-9/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 7faa92339bbb1e6b9a80983b206642517327eb75 OMAPDSS: DISPC: Handle synclost errors in OMAP3 introduces limits check to prevent SYNCLOST errors on OMAP3. However, it misses the logic found in Nokia kernels that is needed to correctly calculate whether 3 tap or 5 tap rescaler to be used as well as the logic to fallback to 3 taps if 5 taps clock results in too tight horizontal timings. Without that patch "horizontal timing too tight" errors are seen when a video with resolution above 640x350 is tried to be played. The patch is a forward-ported logic found in Nokia N900 and N9/50 kernels. Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | OMAPDSS: panel-acx565akm: clean-up lockingTomi Valkeinen2014-01-131-14/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The locking in the acx565akm panel driver was getting too complex. Clean it up by making new functions, acx565akm_bl_get_intensity_locked and acx565akm_bl_update_status_locked, which are called by the backlight subsystem. This way the non-locked versions can be called by the panel's other funcs, simplifying the lock management. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | OMAPDSS: DISPC: Preload more data in pipeline DMAs for OMAP4+ SoCsArchit Taneja2014-01-131-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DISPC pipeline DMAs preload some bytes of pixel data in the vertical blanking region before the start of each frame. The preload ensures the pipeline doesn't underflow when the active region of the display starts. DISPC_GFX/VIDp_PRELOAD registers allow us to program how many bytes of data should be preloaded for each pipeline. Calculating a precise preload value would be a complex function of the pixel clock of the connected display, the vertical blanking duration and the interconnect traffic at that instance. If the register is left untouched, a default value is preloaded. We observe underflows for OMAP4+ SoCs for certain bandwidth intensive use cases with many other initiators active, and in situations where memory access isn't very efficient(like accessing Tiler mapped buffers and EMIF configured in non-interleaved more). The cause of the underflow is because the default preload value isn't sufficient for the DMA to reach a steady state. We configure the PRELOAD register such that the pipelines preload data up to the high threshold of the FIFO. Preloading lot of data for older SoCs can have a negative impact. Due to slower interconnects, it's possible that the DISPC DMA cannot preload up to the high threshold within the vertical blanking region of the panel. We leave the PRELOAD registers to their reset values since we haven't faced underflows with these SoCs because of low value of PRELOAD. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | OMAPFB: disable overlays on driver removalTomi Valkeinen2014-01-131-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When omapfb module is removed, the driver will turn off all the displays it manages. However, it leaves the overlays enabled. While the overlays are obviously disabled as the displays are disabled, it causes issues when the driver module is loaded again, as at that point the overlays are still enabled on the hardware level. The result is that even if the SW thinks overlays are disabled, they are actually enabled. Fix this by making sure the overlays are disabled at module removal. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | OMAPDSS: don't print errors on -EPROBE_DEFERTomi Valkeinen2014-01-135-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nowadays it's normal to get -EPROBE_DEFER from, e.g., regulator_get. As -EPROBE_DEFER is not really an error, and the driver will be probed fine a bit later, printing an error message will just confuse the user. This patch changes omapdss to print an error for regulator_gets only if the error code is something else than -EPROBE_DEFER. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | OMAPFB: give informative print when probe succeedsTomi Valkeinen2014-01-131-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is quite common to have omapfb probe deferred because of a missing resource, and to get omapfb probed succesfully a bit later. This works fine. However, omapfb does not give any print on a successful probe, so if the omapfb is actually never probed again after deferral, this is not shown in the log. To help debugging, add a simple print from omapfb at the end of its probe, saying which display it is using and in which resolution. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | OMAPDSS: HDMI: rename resource namesTomi Valkeinen2014-01-134-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The HDMI driver tries to get the needed memory resources by name and by ID. Resources by name are not currently defined, and will be used with DT boot. The resource names used in the driver are not quite perfect, and as they are not used yet, we can change them. This patch removes the unneeded "hdmi_" prefix from the names, and simplifies the names (e.g. hdmi_txphy -> phy). Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | OMAPDSS: DSI: split DSI memory map to smaller blocksTomi Valkeinen2014-01-131-59/+136
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DSI contains three separate blocks: protocol engine, PHY and PLL. At the moment, all these are memory mapped in one big chunk. We need to split that memory map into smaller pieces so that we can add proper 'reg' properties into the DT data for each block. This patch changes the driver to map the blocks separately. It first tries to get the memory resource using name, used when booting with DT, and if that fails, it gets the memory resource by ID, in which case the driver gets the big chunk from platform data. That big chunk is then split into the smaller blocks manually. After DSS DT code has been merged and the old platform code removed, we can clean up the memory resource management. Instead of changing the driver in all the places where a register is read or written, this patch takes a shortcut: it adds an additional number to the struct which represents the register index. This number is used to decide which base address to use. In the future we should consider other approaches. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 10:57:21 +0100