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  1. 11 5月, 2012 3 次提交
    • T
      OMAPDSS: create DPI & SDI devices · 53f576a8
      由 Tomi Valkeinen 提交于 
      We currently have separate device/driver for each DSS HW module. The DPI
and SDI outputs are more or less parts of the DSS or DISPC hardware
modules, but in SW it makes sense to represent them as device/driver
pairs similarly to all the other outputs. This also makes sense for
device tree, as each node under dss will be a platform device, and
handling DPI & SDI somehow differently than the rest would just make the
code more complex.

This patch modifies arch/arm/mach-omap2/display.c to create platform
devices for DPI and SDI, and later patches will implement driver for
them.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      53f576a8
    • T
      OMAPDSS: create custom pdevs for DSS omap_devices · 966eaed0
      由 Tomi Valkeinen 提交于 
      Instead of using omap_device_build() to create the omap_devices for DSS
hwmods, create them with a custom function. This will allow us to create
a parent-child hierarchy for the devices so that the omapdss_core device
is parent for the rest of the dss hwmod devices.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      966eaed0
    • T
      OMAPDSS: clean up the omapdss platform data mess · 00928eaf
      由 Tomi Valkeinen 提交于 
      The omapdss pdata handling is a mess. This is more evident when trying
to use device tree for DSS, as we don't have platform data anymore in
that case. This patch cleans the pdata handling by:

- Remove struct omap_display_platform_data. It was used just as a
  wrapper for struct omap_dss_board_info.
- Pass the platform data only to omapdss device. The drivers for omap
  dss hwmods do not need the platform data. This should also work better
  for DT, as we can create omapdss device programmatically in generic omap
  boot code, and thus we can pass the pdata to it.
- Create dss functions for get_ctx_loss_count and dsi_enable/disable_pads
  that the dss hwmod drivers can call.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
      00928eaf
  3. 23 4月, 2012 1 次提交
  5. 20 3月, 2012 1 次提交
  7. 25 2月, 2012 2 次提交
  9. 26 1月, 2012 1 次提交
  11. 05 1月, 2012 2 次提交
  13. 07 12月, 2011 1 次提交
  15. 08 11月, 2011 2 次提交
    • A
      ARM: OMAP2PLUS: DSS: Ensure DSS works correctly if display is enabled in bootloader · b923d40d
      由 Archit Taneja 提交于 
      Resetting DISPC when a DISPC output is enabled causes the DSS to go into an
inconsistent state. Thus if the bootloader has enabled a display, the hwmod code
cannot reset the DISPC module just like that, but the outputs need to be
disabled first.

Add function dispc_disable_outputs() which disables all active overlay manager
and ensure all frame transfers are completed.

Modify omap_dss_reset() to call this function and clear DSS_CONTROL,
DSS_SDI_CONTROL and DSS_PLL_CONTROL so that DSS is in a clean state when the
DSS2 driver starts.

This resolves the hang issue(caused by a L3 error during boot) seen on the
beagle board C3, which has a factory bootloader that enables display. The issue
is resolved with this patch.

Thanks to Tomi and Sricharan for some additional testing.
Acked-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: NR, Sricharan <r.sricharan@ti.com>
Signed-off-by: NArchit Taneja <archit@ti.com>
[paul@pwsan.com: restructured code, removed omap_{read,write}l(), removed
 cpu_is_omap*() calls and converted to dev_attr]
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      b923d40d
    • T
      ARM: OMAP: HWMOD: Unify DSS resets for OMAPs · 13662dc5
      由 Tomi Valkeinen 提交于 
      This patch adds a custom DSS reset function used on OMAPs from OMAP2
forward.

The function doesn't actually do a reset, it only waits for the reset to
complete. The reason for this is that on OMAP4 there is no possibility
to do a SW reset, and on OMAP2/3 doing a SW reset for dss_core resets
all the other DSS modules also, thus breaking the HWMOD model where
every DSS module is handled independently.

This fixes the problem with DSS reset on OMAP4, caused by the fact that
because there's no SW reset for dss_core on OMAP4, the HWMOD framework
doesn't try to reset dss_core and thus the DSS clocks were never enabled
at the same time. This causes causes the HWMOD reset to fail for
dss_dispc and dss_rfbi.

The common reset function will also allow us to fix another problem in
the future: before doing a reset we need to disable DSS outputs, which
are in some cases enabled by the bootloader, as otherwise DSS HW seems
to get more or less stuck, requiring a power reset to recover.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
[paul@pwsan.com: modified to build arch/arm/mach-omap2/display.o
 unconditionally to avoid an error when !CONFIG_OMAP2_DSS]
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      13662dc5
  17. 01 11月, 2011 1 次提交
    • P
      arm: fix implicit memset/string.h usage in various arch/arm files · d44b28c4
      由 Paul Gortmaker 提交于 
      To fix things like this:

arch/arm/mach-omap2/usb-tusb6010.c:58: error: implicit declaration of function 'memset'
arch/arm/kernel/leds.c:40: error: implicit declaration of function 'strcspn'
arch/arm/kernel/leds.c:40: warning: incompatible implicit declaration of built-in function 'strcspn'
arch/arm/kernel/leds.c:45: error: implicit declaration of function 'strncmp'
arch/arm/kernel/leds.c:55: error: implicit declaration of function 'strlen'
arch/arm/kernel/leds.c:55: warning: incompatible implicit declaration of built-in function 'strlen'
arch/arm/mach-omap2/clockdomain.c:52: error: implicit declaration of function 'strcmp'
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
      d44b28c4
  19. 05 10月, 2011 1 次提交
  21. 30 9月, 2011 3 次提交
  23. 16 9月, 2011 1 次提交
    • K
      OMAP: omap_device: when building return platform_device instead of omap_device · 3528c58e
      由 Kevin Hilman 提交于 
      All of the device init and device driver interaction with omap_device
is done using platform_device pointers.  To make this more explicit,
have omap_device return a platform_device pointer instead of an
omap_device pointer.

All current users of the omap_device pointer were only using it to get
at the platform_device pointer or struct device pointer, so fixing all
of the users was trivial.

This also makes it more difficult for device init code to directly
access members of struct omap_device, and allows for easier changing
of omap_device internals.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>
      3528c58e
  25. 25 7月, 2011 4 次提交
  27. 11 5月, 2011 2 次提交
  29. 11 3月, 2011 3 次提交
  31. 23 2月, 2011 1 次提交