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* OMAP: DSS2: OMAPFB: Reduce stack usageTomi Valkeinen2011-05-12
| | | | | | | | | | omapfb_mode_to_timings() had struct fb_info, struct fb_var and struct fb_ops allocated from stack. This caused the stack usage grow quite high. Use kzalloc to allocate the structs instead. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: OMAPFB: remove dead codeTomi Valkeinen2011-05-12
| | | | | | Remove old unused code lying inside #if 0. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: RFBI: cleanupTomi Valkeinen2011-05-12
| | | | | | | The RFBI driver is quite messy. Remove dead and unneeded code and add statics to functions. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: RFBI: add omap_rfbi_configureTomi Valkeinen2011-05-12
| | | | | | | Add omap_rfbi_configure() which the panel driver can use to reconfigure the data element size and the number of data lines in the RFBI bus. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: RFBI: clock enable/disable changesTomi Valkeinen2011-05-12
| | | | | | | | | | | | RFBI enables and disables clocks inside almost every function to get a finegrained control to the clocks. However, the current understanding is that this is not necessary power-management-wise. Change the clocking scheme so that RFBI clocks are enabled when the omapdss_rfbi_display_enable is called, and disabled when omapdss_rfbi_display_disable is called. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: RFBI: add rfbi_bus_lockTomi Valkeinen2011-05-12
| | | | | | | Add similar bus lock to RFBI as is in DSI. The panel driver can use the bus lock to mark that the RFBI bus is currently in use. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPFB: fix wrong clock aliases and device nameTomi Valkeinen2011-05-12
| | | | | | | The clock aliases and the dss platform device name have changed, and omapfb fails to initialize. Update the names to correct ones. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Add missing dummy functionsTomi Valkeinen2011-05-12
| | | | | | | dpi.c does not compile if DSI is not compiled in. Add the missing dummy functions so that dpi.c compiles. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Taal: Use device name in backlight_device_registerArchit Taneja2011-05-12
| | | | | | | | | | | | | Panel Taal driver uses the string "taal" to register for a backlight device. This causes backlight_device_register() to fail when a second taal panel is added. Use dev_name(&dssdev->dev) as a parameter instead of the string. Note: This will break backlight related sysfs commands. Use the name as generated by the DSS2 driver, in the form "displayi", which represents the ith registered display device. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP4: DSS2: DSI: Changes for DSI2 on OMAP4Archit Taneja2011-05-12
| | | | | | | | | | | | | Introduce DSI2 PLL clock sources needed by LCD2 channel and DSI2 Protocol engine and DISPC Functional clock. Do the following: - Modify dss_get_dsi_clk_source() and dss_select_dsi_clk_source() to take the dsi module number as an argument. - Create debugfs files for dsi2, split the corresponding debugfs functions. - Allow DPI to use these new clock sources. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: Pass pointer to struct to packet_sent_handler isrsArchit Taneja2011-05-12
| | | | | | | | | | | | | dsi_packet_sent_handler_vp() and dsi_packet_sent_handler_l4() currently receive the completion parameter as their argument. This is not sufficient information to differentiate between DSI1 and DSI2 platform devices. Pass the struct "dsi_packet_sent_handler_data" to the packet_sent_handler isrs, these contain the platform_device pointer of the DSI device and the pointer to the completion struct. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: Use platform_device pointer to get dsi dataArchit Taneja2011-05-12
| | | | | | | | | | | | | | | | The dsi related data structure currently creates one global instance of itself which is accessed by dsi functions. Remove this global structure instance and declare the struct as dsi_data. Modify dsi_init() to allocate a "dsi_data" structure for each platform device instance. Link this data with the device's platform_device pointer. Create the function dsi_get_dsidrv_data() which takes the pdev and return a pointer to the device's dsi_data. Make dsi_get_dsidev_id() return only 0 for now, this will be removed once the name of the DSI platform device is changed to the device instance form, like "omapdss_dsi.0" and "omapdss_dsi.1" etc. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Pass platform_device as an argument in dsi functionsArchit Taneja2011-05-12
| | | | | | | | | | | | | | | | | | The DSI interface is represented as a platform device, using the DSI platform driver(dsi.c). The current DSI driver design is capable of running only one instance of a DSI device. On OMAP4, there are 2 very similar DSI modules which can be represented as instances of "omapdss_dsi" platform device. Add member "module" in "dssdev.phy.dsi" that tells us which DSI module's lanes the panel is connected to. Modify dsi.c functions to take the device's platform_device struct pointer, provide functions dsi_get_dsidev_from_dssdev() and dsi_get_dsidev_from_id() take the panel's omap_dss_device and module number respectively, and return the platform_device pointer. Currently, the dsi struct is declared globally and is accessed when dsi data is needed. The new pdev argument will be used later to provide the platform device's dsi related data. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Remove omap_dss_device argument from dsi_pll_init()Archit Taneja2011-05-12
| | | | | | | | The function dsi_pll_init() has omap_dss_device argument which is not used. Remove this argument. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: Add extra omap_dss_device argument in functions exported by dsiArchit Taneja2011-05-12
| | | | | | | | | Add pointer to omap_dss_device struct as an argument in the functions which are exported to dsi panel drivers. This argument will tell the DSI driver which DSI interface's data it has to choose. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: OMAPFB: make DBG() more resistant in if-else constructionsNiels de Vos2011-05-11
| | | | | | | | | | When DBG() is used in a simple if-else, the resulting code path currently depends on the definition of DBG(). Inserting the statement in a "do { ... } while (0)" prevents this possible misuse. Signed-off-by: Niels de Vos <ndevos@redhat.com> [tomi.valkeinen@ti.com: changed the title of the commit msg] Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP2: avoid descending into disabled framebuffer dirsMike Frysinger2011-05-11
| | | | | | | | | Rather than always add the omap2 dirs to the build list (and thus force everyone to generate a useless built-in.o), bind the dirs to their relevant kconfig symbol. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Remove DSS_IRQSTATUSTomi Valkeinen2011-05-11
| | | | | | | | | | DSS_IRQSTATUS register is available only on OMAP3, and reading it in dss_dump_registers() on OMAP4 seems to cause a crash. The register is not used for anything, and displaying its value is of no use, so let's just remove it altogether. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Remove usage of struct dispc_regArchit Taneja2011-05-11
| | | | | | | | | | | struct dispc_reg was originally used while migrating from old omapfb to catch cases where the arguments to dispc_read_reg/dispc_write_reg were in wrong order, since old omapfb had the arguments in reverse order. Remove this struct and use u16 instead Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Clean up DISPC overlay manager register definitionsArchit Taneja2011-05-11
| | | | | | | | | Represent manager/channel specific DISPC registers as inline functions returning the required dispc_reg struct. This is done since the current method is not scalable as the number of overlay managers increase in number. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Clean up DISPC overlay register definitionsArchit Taneja2011-05-11
| | | | | | | | | | | | | | | | | | Move all DISPC register definitions to a new header dispc.h. There are separate register offset definitions for GFX, VID1 and VID2 pipeline share register definitions by using an argument. The introduction of VID3 pipeline on OMAP4 will not let us use the above method since VID3 pipe register offsets don't map with VID1 and VID2 offsets. Represent overlay registers as DISPC_OVL_XXXX(plane), where the plane argument tells the overlay. Register offsets are calculated as: DISPC_OVL_XXXX(plane) = DISPC_OVL_BASE(plane) + DISPC_XXXX_OFFSET(plane) Idea suggested by Tomi Valkeinen. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: enable scp clock in dsi_dump_regs()Archit Taneja2011-05-11
| | | | | | | | | OMAP4 requires SCP clocks enabled to access DSI PLL registers and DSI COMPLEXIO registers. Enable scp clock before accessing the registers and disable it before exiting dsi_dump_regs(). Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Support for Powertip PH480272TEnric Balletbo i Serra2011-05-11
| | | | | | | | | | Add support for Powertip PH480242T, a LCD 4.3inch (480x242) display type with 24-bit RGB interface, to panel-generic-dpi. Tested with IGEP v2 board. Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Support for Seiko 70WVW1TZ3Enric Balletbo i Serra2011-05-11
| | | | | | | | | | Add support for Seiko 70WVW1TZ3, a LCD 7.0inch WVGA (800x480) display type with 24-bit RGB interface and Touch-Panel, to panel-generic-dpi Tested with IGEP v2 board. Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: enable interface for omap4Vikram Pandita2011-05-11
| | | | | | | | | | | | By default, the DSI is not getting enabled for omap4. OMAP2PLUS does not catch this issue since it has ARCH_OMAP3. The issue is only seen when using defconfig with ARCH_OMAP4 only. Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Cc: Archit Taneja <archit@ti.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: FEATURES: Add missing constsTomi Valkeinen2011-05-11
| | | | | | omap_dss_features definitions were missing consts. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: Add OMAP4 CIO irqsTomi Valkeinen2011-05-11
| | | | | | | | | OMAP4 DSI block has new interrupts for the two new DSI lanes. Add definitions for those interrupts, and add the interrupts to the CIO error mask. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Taal: Implement ULPS functionalityTomi Valkeinen2011-05-11
| | | | | | | | | | | | | ULPS is a low power state where the DSI lanes are kept at ground. This patch implements ULPS by having a DSI bus inactivity timer which triggers the entry to ULPS. ULPS exit will happen automatically when the driver needs to do something on the DSI lanes. The ulps_timeout is configurable from board file or via sysfs. Additionally another sysfs file, "ulps", can be used to check the current ULPS state, or to manually enter or exit ULPS. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Taal: Rename esd_wq to workqueueTomi Valkeinen2011-05-11
| | | | | | | ESD workqueue will be shared with other functionality also. Rename "esd_wq" to "workqueue" to better reflect its usage. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Taal: Separate panel resetTomi Valkeinen2011-05-11
| | | | | | | | Separate panel reset code to a function of its own. This will keep the code cleaner in the future when panel reset is called from multiple locations. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Taal: Add sysfs file for ESD intervalTomi Valkeinen2011-05-11
| | | | | | Implement sysfs support to configure the ESD interval. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Taal: Clean up ESD queueingTomi Valkeinen2011-05-11
| | | | | | | Separate the code which queues/cancels ESD work into their own functions. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Taal: Implement configurable ESD intervalTomi Valkeinen2011-05-11
| | | | | | | | ESD check in Taal driver is currently on/off feature with hardcoded interval. This patch changes it to a configurable interval, which can be set from the board file. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: ensure VDDS_DSI is disabled on exitTomi Valkeinen2011-05-11
| | | | | | | | | The panel drivers can leave the VDDS_DSI regulator enabled, even when the panel is disabled, to ensure that the DSI pins are powered. This patch ensures that VDDS_DSI is disabled on DSI module unload. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: Add DSI pad muxing supportTomi Valkeinen2011-05-11
| | | | | | | | Add dsi_mux_pads function pointer to omap_dss_board_info, and use the function pointer in DSI code to configure the DSI pads either to normal DSI operation, or to pull down when in ULPS. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: add parameter to enter ulps on disableTomi Valkeinen2011-05-11
| | | | | | | | | | | | | | | | Add parameter to omapdss_dsi_display_disable() which the panel driver can use to tell if the DSI lanes should be put to ULPS before disabling the interface. This can be used to skip ULPS entry in cases where the panel doesn't care about ULPS state, for example when the panel will be reset, or when the display interface will be enabled again right after the disable. This will speed up the operation considerably in cases where entering ULPS would fail with timeout, and the panel driver isn't even interested in entering ULPS. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: wait for TXCLKESC domain to come out of resetTomi Valkeinen2011-05-11
| | | | | | | | | Add dsi_cio_wait_tx_clk_esc_reset() function which waits for the TXCLKESC domains to come out of reset. Things have worked fine without this, but better be safe than sorry. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: fix CIO init and uninitTomi Valkeinen2011-05-11
| | | | | | | | Use dsi_enable_scp_clk and dsi_disable_scp_clk in CIO init and uninit, and improve the CIO init by adding a few status checks and error handling. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: implement enable/disable SCP clkTomi Valkeinen2011-05-11
| | | | | | | | | | | | SCP clock is needed for CIO on OMAP3, and for CIO and PLL on OMAP4. Current driver enables the CIO clock always when DSI display is initialized. However, if a DPI display tries to use DSI PLL, the SCP clock is never enabled. This patch implements simple ref counting enable/disable functions for SCP clock. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: fix _dsi_print_reset_statusTomi Valkeinen2011-05-11
| | | | | | The bits for TXCLKESCx reset have changed for OMAP3630 and OMAP4. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Add FEAT_DSI_REVERSE_TXCLKESCTomi Valkeinen2011-05-11
| | | | | | | | | | | OMAP3430 has RESETDONETXCLKESCx bits in the order following bitnumber order for lanes 0, 1, 2: 28, 27, 26. OMAP3630 and later have them in saner order: 24, 25, 26 (and 27, 28 for OMAP4). This patch adds a dss_feature that can be used to differentiate between those two orders of RESETDONETXCLKESCx bits. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: rename complexio related functionsTomi Valkeinen2011-05-11
| | | | | | | | Rename ComplexIO from dsi_complexio_xxx to dsi_cio_xxx for brevity. Also, add cio prefix for couple of functions that didn't have it, but are cio related. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: add option to leave DSI lanes powered onTomi Valkeinen2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | The DSI pins are powered by VDDS_DSI. If VDDS_DSI is off, the DSI pins are floating even if they are pinmuxed to, say, safe mode and there's a pull down/up. This patch gives the panel drivers an option to leave the VDDS_DSI power enabled while the DSS itself is turned off. This can be used to keep the DSI lanes in a valid state while DSS is off, if the DSI pins are muxed for pull down (not done in this patch). There will be a slight power consumption increase (~100 uA?) when the VDDS_DSI is left on, but because this option is used when the panel is left on, the regulator consumption is negligible compared to panel power consumption. When the panel is fully turned off the VDDS_DSI is also turned off. As an added bonus this will give us faster start up time when starting up the DSS and the regulator is already enabled. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: implement ULPS enter and exitTomi Valkeinen2011-05-11
| | | | | | | | | | | | | | | | | | Entering ULPS (Ultra Low Power State) happens by sending ULPS entry sequence to the DSI peripheral and pulling the DSI lines down. Exiting ULPS happens by sending ULPS exit sequence. We can send the ULPS entry sequence by using OMAP DSS HW's ULPS support, but we cannot use the ULPS exit support from DSS HW. DSS HW refuses to send the ULPS exit sequence if it thinks that the lanes are not in ULPS. After being in OFF mode the DSS HW has been reset, and so it does not know that the lanes are actually in ULPS. Thus we need to use the lane override support and manually send the ULPS exit sequence. Luckily the sequence is very simple. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: Remove CIO LDO status checkTomi Valkeinen2011-05-11
| | | | | | | | | | | | CIO LDO status check seems to be broken on OMAP3630+ chips, and it's also quite unclear what LDO status actually tells and when its status changes. This patch removes the whole check on the grounds that if there's a problem with the LDO, we should anyway catch the problem as we check the CIO power state and CIO reset status. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: DSI: Add lane override functionsTomi Valkeinen2011-05-11
| | | | | | | | DSI_DSIPHY_CFG10 register can be used to override DSI lane state. Add functions to configure and enable the override, and to disable the override. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: improve clock debugfs outputTomi Valkeinen2011-05-11
| | | | | | | | | | | OMAP4 has clocks set up in a bit interesting way, causing, for example, the DSS's "ick" to be called "dss_fck". This patch changes the debugfs output to show both the DSS's name for the clock (ie. basically the clock alias), and the real name from the clock struct. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: Convert simple/strict_strto* to kstrto*Tomi Valkeinen2011-05-11
| | | | | | | | | | | Convert simple/strict_strto* functions to kstrto* functions. Only simple cases are converted. simple_strto* uses are still left to places where it is used to parse numbers from a list of numbers. These need some other solution than kstrto*. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP2PLUS: DSS2: Remove hack config "CONFIG_OMAP2_DSS_USE_DSI_PLL"Archit Taneja2011-05-11
| | | | | | | | | | The clock sources for DISPC_FCLK and LCD1_CLK are now specified in the board file. There is no need for the hack config "CONFIG_OMAP2_DSS_USE_DSI_PLL" anymore. Introduce function dpi_use_dsi_pll() which checks for the clock sources to decide whether DSI PLL is to be used or not. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAP: DSS2: HDMI: Use dss_device clock configuration for HDMI PLL parametersArchit Taneja2011-05-11
| | | | | | | | | Move some of the configurable HDMI PLL parameters to dssdev.clock struct. Cleanup the function hdmi_compute_pll() by using the parameters defined in the board file and do some cosmetic modifications. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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