The dmi_list array is initialized using gnu designated initializers, and
therefore may contain fewer explicitly defined entries as there are
elements in it. This is because the enum above with M_xyz constants
contains more items than the designated initializer. Those elements not
explicitly initialized are implicitly set to 0.

Now efifb_setup() loops through all these array elements, and performs
a strcmp on each item. For non explicitly initialized elements this will
be a null pointer:

This patch swaps the check order in the if statement, thus checks first
whether dmi_list[i].base is null.
Signed-off-by: NJames Bates <james.h.bates@gmail.com>
Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Tested-by: NMichal Simek <monstr@monstr.eu>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

In videomode_to_omap_video_timings, de_level is always set to HIGH
regardless of what the vm->flags says. Fix this to set it to high or low
according to vm->flags.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
[tomi.valkeinen@ti.com: rewrote the desc]
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

devm_iounmap is called automatically that's why remove it from the code
dev_set_drvdata(dev, NULL) is called by generic code
after device_release or on probe failure.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Simplify driver probe and release function.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

s/op/pdev/ in xilinxfb_of_probe().
No functional chagnes.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Acked-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

This patch adds a pci stub driver to hyper-fb.  The hyperv framebuffer
driver will bind to the pci device then, so linux kernel and userspace
know there is a proper kernel driver for the device active.  lspci shows
this for example:

[root@dhcp231 ~]# lspci -vs8
00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual
VGA (prog-if 00 [VGA controller])
        Flags: bus master, fast devsel, latency 0, IRQ 11
        Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
        Expansion ROM at <unassigned> [disabled]
        Kernel driver in use: hyperv_fb

Another effect is that the xorg vesa driver will not attach to the
device and thus the Xorg server will automatically use the fbdev
driver instead.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Acked-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

There is currently a copy and paste error where the hdmi vsync timings are not
compared correctly, this patch fixes this.
Signed-off-by: NRichard Röjfors <richard.rojfors@gmail.com>
[tomi.valkeinen@ti.com: fixed to apply on top of latest tree]
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The OMAP4 HDMI encoder driver(hdmi4.c) contains timings tables, and helper
functions which can be used as is by the OMAP5/DRA7x encoder driver. Move these
to hdmi_common.c so that it's not replicated in the future.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The hdmi4 driver has edid macros that aren't used at all. Remove them.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Replace the ti_hdmi_4xxx* notation for OMAP4 HDMI driver with hdmi4. Rename
the hdmi.c encoder driver to hdmi4.c. Rename ti_hdmi.h to hdmi.h
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Add flags for the interrupts present in HDMI wrapper block, these will be used
to configure HDMI_IRQENABLE_SET/CLEAR and HDMI_IRQSTATUS registers.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Keep only OMAP4 HDMI core block related structs and enums in ti_hdmi_4xxx_ip.h,
move the rest to ti_hdmi.h. This holds all library specific data which will be
shared between OMAP4 and OMAP5/DRA7x HDMI encoder drivers.

Move the duplicate register read/write/wait_for_bit_change functions in the hdmi
library files to ti_hdmi.h
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The struct hdmi_ip_data contains information related to HDMI wrapper, PLL, PHY
and core sub-blocks. Now that each of these sub blocks has it's own struct,
hdmi_ip_data serves no purpose. The mutex lock in the struct was also never
used.

Remove this struct to make things cleaner.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

After removing wrapper, pll and phy funcs from ti_hdmi_4xxx_ip.c, we are left
with OMAP4 HDMI core functions. Use these directly in hdmi.c rather than using
hdmi_ip_ops. Rename the core functions with a 'hdmi4' suffix.

We used to have hdmi_ip_ops so that one could support HDMI within a TI SoC which
had a non-DSS display subsytem. This however never got put into use, and hence
these ops aren't useful any more.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

HDMI PHY is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing functions from ti_hdmi_4xxx_ip.c to a separate file. These funcs are
called directly from the hdmi driver rather than hdmi_ip_ops function pointer
calls.

Add the PHY library function declarations to ti_hdmi.h. These will be shared
amongst the omap4/5 hdmi platform drivers. Remove the PHY function pointer ops
from the ti_hdmi_ip_ops struct.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

HDMI PLL is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing PLL functions from ti_hdmi_4xxx_ip.c and hdmi.c to a separate file.
These funcs are called directly from the hdmi driver rather than hdmi_ip_ops
function pointer calls.

Add the PLL library function declarations to ti_hdmi.h. These will be shared
amongst the omap4/5 hdmi platform drivers. Remove the PLL function pointer ops
from the ti_hdmi_ip_ops struct. These will be shared amongst the omap4/5 hdmi
platform drivers and other libraries.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

HDMI wrapper is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing functions from ti_hdmi_4xxx_ip.c to a separate file. These funcs are
called directly from the hdmi driver rather than hdmi_ip_ops funtion pointer
calls.

Add new wrapper funcs which can be used by other hdmi libraries like core, pll
and phy. Move some of the enums, structs and funcs related to the wrapper from
ti_hdmi_4xxx_ip.h to ti_hdmi.h. These will be shared amongst the omap4/5 hdmi
platform drivers and other libraries.

The old hdmi_wp_init() is removed since it didn't do anything. Timing parameters
like interlace, hsync_level and vsync_level weren't copied correctly before.
Those are copied correctly now.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

This is similar to the output printed by efifb.
Signed-off-by: NTom Gundersen <teg@jklm.no>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Add a missing closing brace for email address.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Cc: Alexey Charkov <alchark@gmail.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Cc: Alexey Charkov <alchark@gmail.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Cc: Ed Spiridonov <edo.rus@gmail.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Driver core clears the driver data to NULL after device_release
or on probe failure, so just remove it from here.

Driver core change:
"device-core: Ensure drvdata = NULL when no driver is bound"
(sha1: 0998d063)
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Use devm_kzalloc() instead of kzalloc() in order to be free
automatically. This makes cleanup paths more simple.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Convert to module_platform_driver() to simplify code.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Add missing register entries when dumping the core.
Signed-off-by: NRicardo Neri <ricardo.neri@ti.com>
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Add missing register definitions; mainly for colorspace conversion, video
timing and interrupt handling.
Signed-off-by: NRicardo Neri <ricardo.neri@ti.com>
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Rename the register to be aligned with the HDMI_CORE_SYS naming convention.
Also, update the naming of the #defines used for its fields.
Signed-off-by: NRicardo Neri <ricardo.neri@ti.com>
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>