the check of the return code is missing, user space does not get notified
about the error condition:
omapdss OVERLAY error: overlay 2 horizontally not inside the display area (403 + 800 >= 800)
omapdss APPLY error: failed to apply settings: illegal configuration.
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add support for DRA7xx DPI output.
DRA7xx has three DPI outputs, each of which gets its input from a DISPC
channel. However, DRA72x has only one video PLL, and DRA74x has two
video PLLs. In both cases the video PLLs need to be shared between
multiple outputs. The driver doesn't handle this at the moment.
Also, DRA7xx requires configuring CONTROL module bits to route the clock
from the PLL to the used DISPC channel.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add support for DRA7xx to the HDMI driver.
The HDMI block on DRA7xx is the same as on OMAP5, except we need to
enable and disable the HDMI PLL via the CONTROL module.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
On DRA7xx, DISPC needs to write output signal polarities not only to a
DISPC register, like for all earlier DSS versions, but to control
module's CTRL_CORE_SMA_SW_1 register.
This patch adds support to write the polarities to control module.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add DRA7xx support to DISPC driver. The DISPC block is the same as on
OMAP5, except the PLL's used for clocking are "videoX", not "dsiX".
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
DRA7xx SoCs have one (DRA72x) or two (DRA74x) video PLLs. They are
basically the same as DSI PLLs on OMAPs, but without the rest of the DSI
hardware. The video PLLs also require some configuration via the CONTROL
module.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add functions which configure the control module register
CTRL_CORE_DSS_PLL_CONTROL found in DRA7xx SoCs. This register configures
whether the PLL registers are accessed internally by DSS, or externally
using OCP2SCP interface. They also configure muxes which route the PLL
output to a particular LCD overlay manager within DSS.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
A race issue has been observed with the encoder-tpd12s015 driver, which
leads to errors when trying to read EDID. This has only now been
observed, as OMAP4 and OMAP5 boards used SoC's GPIOs for LS_OE GPIO. On
dra7-evm boards, the LS_OE is behind a i2c controlled GPIO expander,
which increases the time to set the LS_OE.
This patch simplifies the handling of the LS_OE gpio in the driver by
removing the interrupt handling totally. The only time we actually need
to enable LS_OE is when we are reading the EDID, and thus we can just
set and clear the LS_OE gpio inside the read_edid() function.
This also has the additional benefit of very slightly decreasing the
power consumption.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The OMAP5 HW supports directing DIGIT channel to DPI output, but the
driver doesn't support that. However, we have marked that configuration
as possible in the dss features, so in certain cases the driver tries to
use that configuration, leading to broken display.
Fix the problem by allowing DIGIT channel to go only to HDMI output.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
In some cases we need global identifiers for the DSS PLLs, for example
when configuring clock muxing on DRA7. For this purpose let's add a
'enum dss_pll_id'.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The sys_copyarea() function performs the same operation as
cfb_copyarea() but using normal memory access instead of I/O
accessors. Since the introduction of sys_copyarea(), there
have been two fixes to cfb_copyarea():
- 00a9d699 ("framebuffer: fix cfb_copyarea")
- 5b789da8 ("framebuffer: fix screen corruption when copying")
This patch incorporates the fixes into sys_copyarea() as well.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The frame buffer core can be a module, which means any fb drivers
should be able to build as modules too. This turns mmpfb into
a tristate option to allow that and fix a possible randconfig
build error.
drivers/built-in.o: In function `modes_setup':
:(.text+0x11b34): undefined reference to `fb_videomode_to_modelist'
:(.text+0x11b5c): undefined reference to `fb_videomode_to_var'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Device driver should not directly select subsystems. In this case
we get build warnings like
warning: (ARCH_REQUIRE_GPIOLIB && PINCTRL_AT91 && PINCTRL_NOMADIK && MFD_TC6393XB && FB_VIA) selects GPIOLIB which has unmet direct dependencies (ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB)
which we can avoid using the normal 'depends on' statement.
Also, this patch makes it possible for DRM drivers to have a dependency
on GPIOLIB without getting circular Kconfig dependencies.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
this patch fixes ssd1307fb_ssd1306_init() function to return
proper error codes in case of failures.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
CVT v1.1 spec says: "the vertical front porch shall in all cases be
fixed to 3 lines". The code in fbcvt.c instead sets the _back_ porch to
3 (plus margin).
After swapping cvt.v_front_porch and cvt.v_back_porch the resulting
timings were in line with CVT timings in VESA DMT spec.
The bug seems to be more than 9 years old, but I presume it has not been
noticed as usually the video timings come from the EDID or from the
timing tables in fbdev, and probably swapped values for vfp and vbp work
fine for most of the displays.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: David Ung <davidu@nvidia.com>
Cc: Antonino A. Daplas <adaplas@gmail.com>
var->yoffset is of the type __u32, hence the comparison will always
be false.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use NULL instead of 0 for the last entry of dmt_modes struct.
Supresses "sparse: Using plain integer as NULL pointer" warning.
Signed-off-by: David Ung <davidu@nvidia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
IRQ_TYPE_PRIO is no longer used by the Atari platform interrupt code
since commit 734085651c ("[PATCH] m68k: convert atari irq code")
in v2.6.18-rc1, so drop it.
Note that its value has been reused for a different purpose
(IRQ_TYPE_EDGE_FALLING) since commit 6a6de9ef58 ("[PATCH] genirq:
core") in v2.6.18-rc1.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
