1. 09 5月, 2012 4 次提交
  2. 21 3月, 2012 1 次提交
    • T
      OMAPDSS: register dss drivers in module init · dc7e57fa
      Tomi Valkeinen 提交于
      We do the dss driver registration in a rather strange way: we have the
      higher level omapdss driver, and we use that driver's probe function to
      register the drivers for the rest of the dss devices.
      
      There doesn't seem to be any reason for that, and additionally the
      soon-to-be-merged patch "ARM: OMAP: omap_device: remove
      omap_device_parent" will break omapdss initialization with the current
      registration model.
      
      This patch changes the registration for all drivers to happen at the
      same place, in the init of the module.
      Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
      dc7e57fa
  3. 13 3月, 2012 1 次提交
  4. 07 3月, 2012 1 次提交
  5. 06 3月, 2012 5 次提交
  6. 01 3月, 2012 2 次提交
  7. 25 2月, 2012 2 次提交
  8. 23 2月, 2012 5 次提交
    • R
      OMAPDSS: HDMI: hot plug detect fix · ca888a79
      Rob Clark 提交于
      The "OMAPDSS: HDMI: PHY burnout fix" commit switched the HDMI driver
      over to using a GPIO for plug detect.  Unfortunately the ->detect()
      method was not also updated, causing HDMI to no longer work for the
      omapdrm driver (because it would actually check if a connection was
      detected before attempting to enable display).
      Signed-off-by: NRob Clark <rob@ti.com>
      Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      ca888a79
    • A
      OMAPDSS: HACK: Ensure DSS clock domain gets out of idle when HDMI is enabled · a247ce78
      Archit Taneja 提交于
      For DSS clock domain to transition from idle to active state. It's necessary
      to enable the optional clock DSS_FCLK before we enable the module using the
      MODULEMODE bits in the clock domain's CM_DSS_DSS_CLKCTRL register.
      
      This sequence was not followed correctly for the 'dss_hdmi' hwmod and it led
      to DSS clock domain not getting out of idle when pm_runtime_get_sync() was
      called for hdmi's platform device.
      
      Since the clock domain failed to change it's state to active, the hwmod code
      disables any clocks it had enabled before for this hwmod. This led to the clock
      'dss_48mhz_clk' gettind disabled.
      
      When hdmi's runtime_resume() op is called, the call to dss_runtime_get()
      correctly enables the DSS clock domain this time. However, the clock
      'dss_48mhz_clk' is needed for HDMI's PHY to function correctly. Since it was
      disabled previously, the driver fails when it tries to enable HDMI's PHY.
      
      Fix this for now by ensuring that dss_runtime_get() is called before we call
      pm_runtime_get_sync() for hdmi's platform device. A correct fix for later would
      be to modify the DSS related hwmod's mainclks, and also some changes in how
      opt clocks are handled in the DSS driver.
      
      This fixes the issue of HDMI not working when it's the default display. The
      issue is not seen if any other display is already enabled as the first display
      would have correctly enabled the DSS clockdomain.
      Signed-off-by: NArchit Taneja <archit@ti.com>
      Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      a247ce78
    • T
      OMAPFB: remove unused fb_format_to_dss_mode() · 82d5b3e2
      Tomi Valkeinen 提交于
      fb_format_to_dss_mode() function is no longer used, so remove it.
      Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      82d5b3e2
    • T
      OMAPFB: remove mem info from platform_data · 80277566
      Tomi Valkeinen 提交于
      omapfb driver used platform_data to get fb memory areas and formats
      defined by the board file.
      
      This patch removes omapfb's (both old and new omapfb) use of the
      memory data in platform_data, because:
      
      - No board uses them currently
      - It's not board file's job to define things like amount of default
        framebuffer memory. These should come from the bootloader via command
        line parameters.
      Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      80277566
    • T
      OMAPDSS: Remove video SRAM support · 2a803c88
      Tomi Valkeinen 提交于
      OMAP SRAM can be used as video memory on OMAP1 and 2. However, there
      usually is very little SRAM available, thus limiting its use, and no
      board supported by the kernel currently uses it.
      
      This patch removes the use of SRAM as video ram for the omapdss driver
      to simplify memory handling.
      Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      Acked-by: NTony Lindgren <tony@atomide.com>
      2a803c88
  9. 21 2月, 2012 10 次提交
  10. 10 2月, 2012 1 次提交
    • R
      ARM: omap: fix oops in drivers/video/omap2/dss/dpi.c · 40410715
      Russell King 提交于
      When a PMIC is not found, this driver is unable to obtain its
      'vdds_dsi_reg' regulator.  Even through its initialization function
      fails, other code still calls its enable function, which fails to
      check whether it has this regulator before asking for it to be enabled.
      
      This fixes the oops, however a better fix would be to sort out the
      upper layers to prevent them calling into a module which failed to
      initialize.
      
      Unable to handle kernel NULL pointer dereference at virtual address 00000038
      pgd = c0004000
      [00000038] *pgd=00000000
      Internal error: Oops: 5 [#1] PREEMPT
      Modules linked in:
      CPU: 0    Not tainted  (3.3.0-rc2+ #228)
      PC is at regulator_enable+0x10/0x70
      LR is at omapdss_dpi_display_enable+0x54/0x15c
      pc : [<c01b9a08>]    lr : [<c01af994>]    psr: 60000013
      sp : c181fd90  ip : c181fdb0  fp : c181fdac
      r10: c042eff0  r9 : 00000060  r8 : c044a164
      r7 : c042c0e4  r6 : c042bd60  r5 : 00000000  r4 : c042bd60
      r3 : c084de48  r2 : c181e000  r1 : c042bd60  r0 : 00000000
      Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
      Control: 10c5387d  Table: 80004019  DAC: 00000015
      Process swapper (pid: 1, stack limit = 0xc181e2e8)
      Stack: (0xc181fd90 to 0xc1820000)
      fd80:                                     c001754c c042bd60 00000000 c042bd60
      fda0: c181fdcc c181fdb0 c01af994 c01b9a04 c0016104 c042bd60 c042bd60 c044a338
      fdc0: c181fdec c181fdd0 c01b5ed0 c01af94c c042bd60 c042bd60 c1aa8000 c1aa8a0c
      fde0: c181fe04 c181fdf0 c01b5f54 c01b5ea8 c02fc18c c042bd60 c181fe3c c181fe08
      fe00: c01b2a18 c01b5f48 c01aed14 c02fc160 c01df8ec 00000002 c042bd60 00000003
      fe20: c042bd60 c1aa8000 c1aa8a0c c042eff8 c181fe84 c181fe40 c01b3874 c01b29fc
      fe40: c042eff8 00000000 c042f000 c0449db8 c044ed78 00000000 c181fe74 c042eff8
      fe60: c042eff8 c0449db8 c0449db8 c044ed78 00000000 00000000 c181fe94 c181fe88
      fe80: c01e452c c01b35e8 c181feb4 c181fe98 c01e2fdc c01e4518 c042eff8 c0449db8
      fea0: c0449db8 c181fef0 c181fecc c181feb8 c01e3104 c01e2f48 c042eff8 c042f02c
      fec0: c181feec c181fed0 c01e3190 c01e30c0 c01e311c 00000000 c01e311c c0449db8
      fee0: c181ff14 c181fef0 c01e1998 c01e3128 c18330a8 c1892290 c04165e8 c0449db8
      ff00: c0449db8 c1ab60c0 c181ff24 c181ff18 c01e2e28 c01e194c c181ff54 c181ff28
      ff20: c01e2218 c01e2e14 c039afed c181ff38 c04165e8 c041660c c0449db8 00000013
      ff40: 00000000 c03ffdb8 c181ff7c c181ff58 c01e384c c01e217c c181ff7c c04165e8
      ff60: c041660c c003a37c 00000013 00000000 c181ff8c c181ff80 c01e488c c01e3790
      ff80: c181ff9c c181ff90 c03ffdcc c01e484c c181ffdc c181ffa0 c0008798 c03ffdc4
      ffa0: c181ffc4 c181ffb0 c0056440 c0187810 c003a37c c04165e8 c041660c c003a37c
      ffc0: 00000013 00000000 00000000 00000000 c181fff4 c181ffe0 c03ea284 c0008708
      ffe0: 00000000 c03ea208 00000000 c181fff8 c003a37c c03ea214 1073cec0 01f7ee08
      Backtrace:
      [<c01b99f8>] (regulator_enable+0x0/0x70) from [<c01af994>] (omapdss_dpi_display_enable+0x54/0x15c)
       r6:c042bd60 r5:00000000 r4:c042bd60
      [<c01af940>] (omapdss_dpi_display_enable+0x0/0x15c) from [<c01b5ed0>] (generic_dpi_panel_power_on+0x34/0x78)
       r6:c044a338 r5:c042bd60 r4:c042bd60
      [<c01b5e9c>] (generic_dpi_panel_power_on+0x0/0x78) from [<c01b5f54>] (generic_dpi_panel_enable+0x18/0x28)
       r7:c1aa8a0c r6:c1aa8000 r5:c042bd60 r4:c042bd60
      [<c01b5f3c>] (generic_dpi_panel_enable+0x0/0x28) from [<c01b2a18>] (omapfb_init_display+0x28/0x150)
       r4:c042bd60
      [<c01b29f0>] (omapfb_init_display+0x0/0x150) from [<c01b3874>] (omapfb_probe+0x298/0x318)
       r8:c042eff8 r7:c1aa8a0c r6:c1aa8000 r5:c042bd60 r4:00000003
      [<c01b35dc>] (omapfb_probe+0x0/0x318) from [<c01e452c>] (platform_drv_probe+0x20/0x24)
      [<c01e450c>] (platform_drv_probe+0x0/0x24) from [<c01e2fdc>] (really_probe+0xa0/0x178)
      [<c01e2f3c>] (really_probe+0x0/0x178) from [<c01e3104>] (driver_probe_device+0x50/0x68)
       r7:c181fef0 r6:c0449db8 r5:c0449db8 r4:c042eff8
      [<c01e30b4>] (driver_probe_device+0x0/0x68) from [<c01e3190>] (__driver_attach+0x74/0x98)
       r5:c042f02c r4:c042eff8
      [<c01e311c>] (__driver_attach+0x0/0x98) from [<c01e1998>] (bus_for_each_dev+0x58/0x98)
       r6:c0449db8 r5:c01e311c r4:00000000
      [<c01e1940>] (bus_for_each_dev+0x0/0x98) from [<c01e2e28>] (driver_attach+0x20/0x28)
       r7:c1ab60c0 r6:c0449db8 r5:c0449db8 r4:c04165e8
      [<c01e2e08>] (driver_attach+0x0/0x28) from [<c01e2218>] (bus_add_driver+0xa8/0x22c)
      [<c01e2170>] (bus_add_driver+0x0/0x22c) from [<c01e384c>] (driver_register+0xc8/0x154)
      [<c01e3784>] (driver_register+0x0/0x154) from [<c01e488c>] (platform_driver_register+0x4c/0x60)
       r8:00000000 r7:00000013 r6:c003a37c r5:c041660c r4:c04165e8
      [<c01e4840>] (platform_driver_register+0x0/0x60) from [<c03ffdcc>] (omapfb_init+0x14/0x34)
      [<c03ffdb8>] (omapfb_init+0x0/0x34) from [<c0008798>] (do_one_initcall+0x9c/0x164)
      [<c00086fc>] (do_one_initcall+0x0/0x164) from [<c03ea284>] (kernel_init+0x7c/0x120)
      [<c03ea208>] (kernel_init+0x0/0x120) from [<c003a37c>] (do_exit+0x0/0x2d8)
       r5:c03ea208 r4:00000000
      Code: e1a0c00d e92dd870 e24cb004 e24dd004 (e5906038)
      ---[ end trace 9e2474c2e193b223 ]---
      Acked-by: NTony Lindgren <tony@atomide.com>
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      40410715
  11. 29 1月, 2012 2 次提交
  12. 26 1月, 2012 2 次提交
    • T
      OMAPDSS: HDMI: PHY burnout fix · c49d005b
      Tomi Valkeinen 提交于
      A hardware bug in the OMAP4 HDMI PHY causes physical damage to the board
      if the HDMI PHY is kept powered on when the cable is not connected.
      
      This patch solves the problem by adding hot-plug-detection into the HDMI
      IP driver. This is not a real HPD support in the sense that nobody else
      than the IP driver gets to know about the HPD events, but is only meant
      to fix the HW bug.
      
      The strategy is simple: If the display device is turned off by the user,
      the PHY power is set to OFF. When the display device is turned on by the
      user, the PHY power is set either to LDOON or TXON, depending on whether
      the HDMI cable is connected.
      
      The reason to avoid PHY OFF when the display device is on, but the cable
      is disconnected, is that when the PHY is turned OFF, the HDMI IP is not
      "ticking" and thus the DISPC does not receive pixel clock from the HDMI
      IP. This would, for example, prevent any VSYNCs from happening, and
      would thus affect the users of omapdss. By using LDOON when the cable is
      disconnected we'll avoid the HW bug, but keep the HDMI working as usual
      from the user's point of view.
      Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      c49d005b
    • T
      OMAPDSS: use sync versions of pm_runtime_put · 0eaf9f52
      Tomi Valkeinen 提交于
      omapdss doesn't work properly on system suspend. The problem seems to be
      the fact that omapdss uses pm_runtime_put() functions when turning off
      the hardware, and when system suspend is in process only sync versions
      are allowed.
      
      Using non-sync versions normally and sync versions when suspending would
      need rather ugly hacks to convey the information of
      suspending/not-suspending to different functions. Optimally the driver
      wouldn't even need to care about this, and the PM layer would handle
      syncing when suspend is in process.
      
      This patch changes all omapdss's pm_runtime_put calls to
      pm_runtime_put_sync. This fixes the suspend problem, and probably the
      performance penalty of always using sync versions is negligible.
      Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      Acked-by: NKevin Hilman <khilman@ti.com>
      0eaf9f52
  13. 25 1月, 2012 4 次提交