drm/gma500: Remove unnecessary include statements for drm_crtc_helper.h

Several source files include drm_crtc_helper.h without needing it or
only to get its transitive include statements; leading to unnecessary
compile-time dependencies.

Directly include required headers and drop drm_crtc_helper.h where
possible.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230116131235.18917-9-tzimmermann@suse.de

drm/gma500: fix repeated words in comments

Delete the redundant word 'for'.

Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907113927.35305-1-yuanjilin@cdjrlc.com

drm: Drop drm_framebuffer.h from drm_crtc.h

drm_crtc.h has no need for drm_frambuffer.h, so don't include it.
Avoids useless rebuilds of the entire universe when
touching drm_framebuffer.h.

Quite a few placs do currently depend on drm_framebuffer.h without
actually including it directly. All of those need to be fixed
up.

v2: Fix up msm some more
v2: Deal with ingenic and shmobile as well

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220614095449.29311-1-ville.syrjala@linux.intel.com
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>

drm/gma500: Make use of the drm connector iterator

This makes sure we're using proper locking when iterating the list of
connectors.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220322131742.11566-3-patrik.r.jakobsson@gmail.com

drm/gma500: Use drm_mode_copy()

struct drm_display_mode embeds a list head, so overwriting
the full struct with another one will corrupt the list
(if the destination mode is on a list). Use drm_mode_copy()
instead which explicitly preserves the list head of
the destination mode.

Even if we know the destination mode is not on any list
using drm_mode_copy() seems decent as it sets a good
example. Bad examples of not using it might eventually
get copied into code where preserving the list head
actually matters.

Obviously one case not covered here is when the mode
itself is embedded in a larger structure and the whole
structure is copied. But if we are careful when copying
into modes embedded in structures I think we can be a
little more reassured that bogus list heads haven't been
propagated in.

@is_mode_copy@
@@
drm_mode_copy(...)
{
...
}

@depends on !is_mode_copy@
struct drm_display_mode *mode;
expression E, S;
@@
(
- *mode = E
+ drm_mode_copy(mode, &E)
|
- memcpy(mode, E, S)
+ drm_mode_copy(mode, E)
)

@depends on !is_mode_copy@
struct drm_display_mode mode;
expression E;
@@
(
- mode = E
+ drm_mode_copy(&mode, &E)
|
- memcpy(&mode, E, S)
+ drm_mode_copy(&mode, E)
)

@@
struct drm_display_mode *mode;
@@
- &*mode
+ mode

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220218100403.7028-8-ville.syrjala@linux.intel.com
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: Rename struct gtt_range to struct psb_gem_object

struct gtt_range represents a GEM object. Rename the structure to struct
psb_gem_object and update all users. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211015084053.13708-11-tzimmermann@suse.de

drm/gma500: Replace references to dev_private with helper function

Replace most references to struct drm_device.dev_private with the new
helper function to_drm_psb_private(). The only references left are in
assignments and the helper itself.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210920141051.30988-2-tzimmermann@suse.de

drm/gma500/oaktrail_crtc: Demote unworthy kernel-doc headers

Fixes the following W=1 kernel build warning(s):

drivers/gpu/drm/gma500/oaktrail_crtc.c:184: warning: Function parameter or member 'limit' not described in 'mrst_lvds_find_best_pll'
drivers/gpu/drm/gma500/oaktrail_crtc.c:184: warning: Function parameter or member 'crtc' not described in 'mrst_lvds_find_best_pll'
drivers/gpu/drm/gma500/oaktrail_crtc.c:184: warning: Function parameter or member 'target' not described in 'mrst_lvds_find_best_pll'
drivers/gpu/drm/gma500/oaktrail_crtc.c:184: warning: Function parameter or member 'refclk' not described in 'mrst_lvds_find_best_pll'
drivers/gpu/drm/gma500/oaktrail_crtc.c:184: warning: Function parameter or member 'best_clock' not described in 'mrst_lvds_find_best_pll'
drivers/gpu/drm/gma500/oaktrail_crtc.c:215: warning: Function parameter or member 'crtc' not described in 'oaktrail_crtc_dpms'
drivers/gpu/drm/gma500/oaktrail_crtc.c:215: warning: Function parameter or member 'mode' not described in 'oaktrail_crtc_dpms'
drivers/gpu/drm/gma500/oaktrail_crtc.c:345: warning: Function parameter or member 'dev' not described in 'oaktrail_panel_fitter_pipe'

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115181601.3432599-21-lee.jones@linaro.org

drm/gma500: fix memory disclosures due to uninitialized bytes

"clock" may be copied to "best_clock". Initializing best_clock
is not sufficient. The fix initializes clock as well to avoid
memory disclosures and informaiton leaks.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191018044150.1899-1-kjlu@umn.edu

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
software foundation inc 51 franklin st fifth floor boston ma 02110
1301 usa

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 111 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drm/gma500: drop drmp.h include from all .c files

Drop remaining uses of the deprecated drmP.h in gma500

Replaced drmp.h with forward declarations or include files
as relevant.

Moved all include files to blocks in following order:
\#include <linux/*>

\#include <asm/*>

\#include <drm/*>

\#include ""

And within each block sort the include files alphabetically.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190519195526.3422-6-sam@ravnborg.org

drm/gma500: Move GEM BO to drm_framebuffer

Since drm_framebuffer can now store GEM objects directly, place them
there rather than in our own subclass. As this makes the framebuffer
create_handle and destroy functions the same as the GEM framebuffer
helper, we can reuse those.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180330141138.28987-20-daniels@collabora.com

drm: Nuke fb->bits_per_pixel

Replace uses of fb->bits_per_pixel with fb->format->cpp[0]*8.
Less duplicated information is a good thing.

Note that I didn't put parens around the cpp*8 in the below cocci script,
on account of not wanting spurious parens all over the place. Instead I
did the unsafe way, and tried to look over the entire diff to spot if
any dangerous expressions were produced. I didn't see any.

There are some cases where previously the code did X*bpp/8, so the
division happened after the multiplication. Those are now just X*cpp
so the division effectively happens before the multiplication,
but that is perfectly fine since bpp is always a multiple of 8.

@@
struct drm_framebuffer *FB;
expression E;
@@
drm_helper_mode_fill_fb_struct(...) {
...
- FB->bits_per_pixel = E;
...
}

@@
struct drm_framebuffer *FB;
expression E;
@@
i9xx_get_initial_plane_config(...) {
...
- FB->bits_per_pixel = E;
...
}

@@
struct drm_framebuffer *FB;
expression E;
@@
ironlake_get_initial_plane_config(...) {
...
- FB->bits_per_pixel = E;
...
}

@@
struct drm_framebuffer *FB;
expression E;
@@
skylake_get_initial_plane_config(...) {
...
- FB->bits_per_pixel = E;
...
}

@@
struct drm_framebuffer FB;
expression E;
@@
(
- E * FB.bits_per_pixel / 8
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel / 8
+ FB.format->cpp[0]
|
- E * FB.bits_per_pixel >> 3
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel >> 3
+ FB.format->cpp[0]
|
- (FB.bits_per_pixel + 7) / 8
+ FB.format->cpp[0]
|
- FB.bits_per_pixel
+ FB.format->cpp[0] * 8
|
- FB.format->cpp[0] * 8 != 8
+ FB.format->cpp[0] != 1
)

@@
struct drm_framebuffer *FB;
expression E;
@@
(
- E * FB->bits_per_pixel / 8
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel / 8
+ FB->format->cpp[0]
|
- E * FB->bits_per_pixel >> 3
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel >> 3
+ FB->format->cpp[0]
|
- (FB->bits_per_pixel + 7) / 8
+ FB->format->cpp[0]
|
- FB->bits_per_pixel
+ FB->format->cpp[0] * 8
|
- FB->format->cpp[0] * 8 != 8
+ FB->format->cpp[0] != 1
)

@@
struct drm_plane_state *state;
expression E;
@@
(
- E * state->fb->bits_per_pixel / 8
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel / 8
+ state->fb->format->cpp[0]
|
- E * state->fb->bits_per_pixel >> 3
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel >> 3
+ state->fb->format->cpp[0]
|
- (state->fb->bits_per_pixel + 7) / 8
+ state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel
+ state->fb->format->cpp[0] * 8
|
- state->fb->format->cpp[0] * 8 != 8
+ state->fb->format->cpp[0] != 1
)

@@
@@
- (8 * 8)
+ 8 * 8

@@
struct drm_framebuffer FB;
@@
- (FB.format->cpp[0])
+ FB.format->cpp[0]

@@
struct drm_framebuffer *FB;
@@
- (FB->format->cpp[0])
+ FB->format->cpp[0]

@@
@@
struct drm_framebuffer {
...
- int bits_per_pixel;
...
};

v2: Clean up the 'cpp*8 != 8' and '(8 * 8)' cases (Laurent)
v3: Adjusted the semantic patch a bit and regenerated due to code
changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/1481751140-18352-1-git-send-email-ville.syrjala@linux.intel.com

drm: Nuke fb->depth

Replace uses of fb->depth with fb->format->depth. Less duplicate
information is a good thing.

@@
struct drm_framebuffer *fb;
expression E;
@@
drm_helper_mode_fill_fb_struct(...) {
...
- fb->depth = E;
...
}

@@
struct nouveau_framebuffer *fb;
@@
- fb->base.depth
+ fb->base.format->depth

@@
struct drm_framebuffer fb;
@@
- fb.depth
+ fb.format->depth

@@
struct drm_framebuffer *fb;
@@
- fb->depth
+ fb->format->depth

@@
struct drm_framebuffer fb;
@@
- (fb.format->depth)
+ fb.format->depth

@@
struct drm_framebuffer *fb;
@@
- (fb->format->depth)
+ fb->format->depth

@@
@@
struct drm_framebuffer {
...
- unsigned int depth;
...
};

v2: Drop the vmw stuff (Daniel)
Rerun spatch due to code changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1481751095-18249-1-git-send-email-ville.syrjala@linux.intel.com

drm/gma500: Add some local 'fb' variables

Add a local 'fb' variable to a few places to get rid of the
'crtc->primary->fb' stuff. Looks neater and helps me with my poor
coccinelle skills later.

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-7-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drm/gma: removed optional dummy crtc mode_fixup function.

This patch set nukes all the dummy crtc mode_fixup implementations.
(made on top of Daniel topic/drm-misc branch)

Signed-off-by: Carlos Palminha <palminha@synopsys.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drm/gma500: constify all struct drm_*_helper funcs pointers

They are not to be modified.

Generated using the semantic patch:

@@
@@
(
const struct drm_crtc_helper_funcs *
|
- struct drm_crtc_helper_funcs *
+ const struct drm_crtc_helper_funcs *
)

@@
@@
(
const struct drm_encoder_helper_funcs *
|
- struct drm_encoder_helper_funcs *
+ const struct drm_encoder_helper_funcs *
)

@@
@@
(
const struct drm_connector_helper_funcs *
|
- struct drm_connector_helper_funcs *
+ const struct drm_connector_helper_funcs *
)

@@
@@
(
const struct drm_plane_helper_funcs *
|
- struct drm_plane_helper_funcs *
+ const struct drm_plane_helper_funcs *
)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drm: Replace crtc fb with primary plane fb (v3)

Now that CRTC's have a primary plane, there's no need to track the
framebuffer in the CRTC. Replace all references to the CRTC fb with the
primary plane's fb.

This patch was generated by the Coccinelle semantic patching tool using
the following rules:

@@ struct drm_crtc C; @@
- (C).fb
+ C.primary->fb

@@ struct drm_crtc *C; @@
- (C)->fb
+ C->primary->fb

v3: Generate patch via coccinelle. Actual removal of crtc->fb has been
moved to a subsequent patch.

v2: Fixup several lingering crtc->fb instances that were missed in the
first patch iteration. [Rob Clark]

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>

drm/gma500/mrst: Replace WMs and chickenbits with values from EMGD

For the minnowboard to work the values found in EMGD are required.
This might break Oaktrail but without hardware to test with I cannot
really tell (and do not really care).

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500/mrst: Properly route oaktrail hdmi hooks

Since we can have SDVO on Pipe B we better check the output type instead
of pipe number for Oaktrail HDMI.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500/mrst: Add aux register writes when programming pipe

On SDVO pipes (always Pipe B on mrst) we have to sequentially write the
aux vdc. We might be able to skip programming the primary vdc in
some/most places but we don't care about that now.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500/mrst: Add SDVO clock calculation

We start off by adding SDVO limits and converting all limits to the
generic gma_limit_t stuct. Then we separate clock calculations for
LVDS and SDVO. This will be cleaned up later but keep it simple for now.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: Rename psb_intel_encoder to gma_encoder

The psb_intel_encoder is generic and should be named appropriately

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: Rename psb_intel_crtc to gma_crtc

The psb_intel_crtc is generic and should be named appropriately

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: Convert to generic encoder funcs

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500/oak: Use identical generic crtc funcs

Use the generic gma functions instead of the oaktrail functions where
they are identical.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: Convert to generic gamma funcs

This takes care of the remaining chips using the old generic code.
We don't check if the pipe number is valid but the old code peeked in
the register map before checking anyways so just ignore it.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: Make all chips use gma_wait_for_vblank

Also remove the duplicated oaktrail function.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: Make use of gma_pipe_has_type()

Replace any use of xxx_intel_pipe_has_type() with the generic
gma_pipe_has_type() function. Poulsbo still use it but that will be
removed when we rip out psb_intel_pipe_has_type().

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drm/gma500: drm_connector_property -> drm_object_property

Signed-off-by: Rob Clark <rob@ti.com>

gma600: Enable HDMI support

There are still some mysteries left, in particular how (and in
fact if) the EDID is supposed to work on the HDMI port. However
the basic stuff now works and I can plug my Q550 into an HDMI
display and get the expected results.

[v2: cleans up space/tab and other formatting as per Dave's
request]

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drm: Make the .mode_fixup() operations mode argument a const pointer

The passed mode must not be modified by the operation, make it const.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: use the register map to clean up

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: oaktrail_crtc: drop unused variables

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: oaktrail_crtc: mark few functions as static

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: clean up some of the struct fields we no longer use

Some this is Medfield stuff that may reappear in some form later, other
bits are just dead stuff

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: Convert Oaktrail to work with new output handling

Replace psb_intel_output with psb_intel_encoder and psb_intel_connector

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
[Changed Moorestown reference to Oaktrail]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drm: Replace pitch with pitches[] in drm_framebuffer

Otherwise each driver would need to keep the information inside
their own framebuffer object structure. Also add offsets[]. BOs
on the other hand are driver specific, so those can be kept in
driver specific structures.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: do a pass over the FIXME tags

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

gma500: Add Oaktrail support

Oaktrail (GMA600) is found on some tablet/slate PC type systems. It's a bit
different to the GMA500 but similar enough it makes sense to plug it into
the same driver.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>