The sti drm driver has a lot of debugfs interface that cause
build errors in some configurations when seq_file.h is not
included implicitly:

drm/sti/sti_mixer.c: In function 'mixer_dbg_ctl':
drm/sti/sti_mixer.c:88:2: error: implicit declaration of function 'seq_puts' [-Werror=implicit-function-declaration]
drm/sti/sti_mixer.c:91:4: error: implicit declaration of function 'seq_printf' [-Werror=implicit-function-declaration]
drm/sti/sti_gdp.c: In function 'gdp_dbg_ctl':
drm/sti/sti_gdp.c:146:2: error: implicit declaration of function 'seq_puts' [-Werror=implicit-function-declaration]
drm/sti/sti_gdp.c:149:4: error: implicit declaration of function 'seq_printf' [-Werror=implicit-function-declaration]
drm/sti/sti_gdp.c: In function 'gdp_dbg_show':
drm/sti/sti_gdp.c:208:32: error: dereferencing pointer to incomplete type 'struct seq_file'

This adds an explicit #include statement in all of the affected files.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1462830733-1710590-2-git-send-email-arnd@arndb.de

The async name is deprecated and should be changed to nonblocking.

Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: NVincent Abriou <vincent.abriou@st.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461679905-30177-9-git-send-email-maarten.lankhorst@linux.intel.com

Commit 8a2fa38f removed the mode_fixup because it was empty,
but 652353e6 modified it to call drm_mode_set_crtcinfo()
instead.

Both commits are correct, but the merge of the two kept the nonempty
version without the reference to it, as shown by the gcc warning:

 drm/sti/sti_crtc.c:54:13: error: 'sti_crtc_mode_fixup' defined but not used

This restores the callback pointer to fix the merge.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Reverts: 8a2fa38f ("drm/sti: removed optional dummy crtc mode_fixup function.")
Fixes: 652353e6 ("drm/sti: set CRTC modesetting parameters")
Fixes: cf481068 ("Merge branch '2016-02-26-st-drm-next' of http://git.linaro.org/people/benjamin.gaignard/kernel into drm-next")
Acked-by: NVincent ABRIOU <vincent.abriou@st.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Rename dma_*_writecombine() to dma_*_wc(), so that the naming
is coherent across the various write-combining APIs. Keep the
old names for compatibility for a while, these can be removed
at a later time. A guard is left to enable backporting of the
rename, and later remove of the old mapping defines seemlessly.

Build tested successfully with allmodconfig.

The following Coccinelle SmPL patch was used for this simple
transformation:

@ rename_dma_alloc_writecombine @
expression dev, size, dma_addr, gfp;
@@

-dma_alloc_writecombine(dev, size, dma_addr, gfp)
+dma_alloc_wc(dev, size, dma_addr, gfp)

@ rename_dma_free_writecombine @
expression dev, size, cpu_addr, dma_addr;
@@

-dma_free_writecombine(dev, size, cpu_addr, dma_addr)
+dma_free_wc(dev, size, cpu_addr, dma_addr)

@ rename_dma_mmap_writecombine @
expression dev, vma, cpu_addr, dma_addr, size;
@@

-dma_mmap_writecombine(dev, vma, cpu_addr, dma_addr, size)
+dma_mmap_wc(dev, vma, cpu_addr, dma_addr, size)

We also keep the old names as compatibility helpers, and
guard against their definition to make backporting easier.

Generated-by: Coccinelle SmPL
Suggested-by: NIngo Molnar <mingo@kernel.org>
Signed-off-by: NLuis R. Rodriguez <mcgrof@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: airlied@linux.ie
Cc: akpm@linux-foundation.org
Cc: benh@kernel.crashing.org
Cc: bhelgaas@google.com
Cc: bp@suse.de
Cc: dan.j.williams@intel.com
Cc: daniel.vetter@ffwll.ch
Cc: dhowells@redhat.com
Cc: julia.lawall@lip6.fr
Cc: konrad.wilk@oracle.com
Cc: linux-fbdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: luto@amacapital.net
Cc: mst@redhat.com
Cc: tomi.valkeinen@ti.com
Cc: toshi.kani@hp.com
Cc: vinod.koul@intel.com
Cc: xen-devel@lists.xensource.com
Link: http://lkml.kernel.org/r/1453516462-4844-1-git-send-email-mcgrof@do-not-panic.comSigned-off-by: NIngo Molnar <mingo@kernel.org>

This patch set nukes all the dummy crtc mode_fixup implementations.
(made on top of Daniel topic/drm-misc branch)
Signed-off-by: NCarlos Palminha <palminha@synopsys.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/08d27e27582fb2daa48555ab542245c6cf0a2268.1455630967.git.palminha@synopsys.com

The STi drm driver correctly warns about invalid format strings
when built with 64-bit dma_addr_t:

sti_hqvdp.c: In function 'sti_hqvdp_vtg_cb':
sti_hqvdp.c:605:119: warning: format '%x' expects argument of type
'unsigned int', but argument 5 has type 'dma_addr_t {aka long long
unsigned int}' [-Wformat=]
sti_hqvdp.c: In function 'sti_hqvdp_atomic_update':
sti_hqvdp.c:931:118: warning: format '%x' expects argument of type
'unsigned int', but argument 5 has type 'dma_addr_t {aka long long
unsigned int}' [-Wformat=]

This could be changed to using the %pad format string, but that
does not work when printing an rvalue, so instead I'm changing
the type in the sti_hqvdp structure to u32, which is what gets
written into the registers anyway.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Thanks to "drm: prime: Honour O_RDWR during prime-handle-to-fd"
commit we don't need to hack flags anymore.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Display fps on demand for each used plane:
cat /sys/kernel/debug/dri/0/fps_get
Display fps in live in the console for each used plane:
echo 255 > /sys/kernel/debug/dri/0/fps_show
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Configures the framer of the HDMI connection.
By default starts in HDMI mode and can be swtich to DVI.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Make the value of the colorspace of the HDMI infoframe configurable.
HDMI colorspace could be: RGB, YUV422 or YUV444
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Vendor specific infoframe is mandatory for 4K2K resolution.
Without this, the HDMI protocol compliance fails.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Clear all infoframe registers when the HDMI link is stopped.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Set the infoframe transmission mode according to the type of
the infoframe.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Make sure the HD DACS are disabled when the HDA connector
is created.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Modify AWG algorithm in order to handle more than 1023 lines
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Modify delay to display last pixel column on DVO
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

The DVO connector is tag as disconnect because of a wrong management
of the panel detection.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Disable the clipping mode for hdmi, dvo and hda connectors.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Use BT601 for SD/ED resolution and BT709 for HD resolution
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Atomic update should never fail. Thus all checks must be done in
the atomic_check function for each plane (gdp, hqvdp and cursor).
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

It may happen that the cursor is displayed with wrong colors which can
be explained by a CLUT wrongly fetched at the first display.
Fetching the CLUT at each commit (=move) ensures that the right colors
are used, at least from the first cursor move.
Signed-off-by: NFabien Dessenne <fabien.dessenne@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

GDP source width should be equal to the destination width to get
rid of this issue.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

When a GDP gets a scale request (which it does not support), it accepts it
but crops or clamps and outputs a warning message.
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Only RGB formats supported by GDP planes
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

When a frame or a field is skipped, output a Warning message instead of
an Error message.
Signed-off-by: NFabien Dessenne <fabien.dessenne@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

data_en is a local variable that doesn't need to be set as
awg_generate_instr can be called directly with the requested value.
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

This update eases to understand the VTG programming.
It also sets a VTG output id for each supported connectors.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

sti now support of atomic modesetting so set the flag to enable it.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

fix x/y typo while setting cursor coordinates
Signed-off-by: NFabien Dessenne <fabien.dessenne@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Set CRTC modesetting parameters to avoid warnings in atomic mode.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>