diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2018-06-21 20:44:50 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-07-01 21:36:47 +0200 |
| commit | e08015e7d6a4b5395e75cc286ab6400667c63dc0 (patch) | |
| tree | 9061c97394dedd4c9bf7ee361dcad3ff07060581 /drivers/gpu/drm/pl111/pl111_drm.h | |
| parent | 491657a915601febfb9d0c253d843124438ae35d (diff) | |
drm/pl111: Support Nomadik LCDC variant
The Nomadik has a variant of the PL110 known as "Color LCD
Controller" LCDC. This variant has the same bit ordering as
the DRM subsystem (in difference from the other variants)
and adds a few bits for the control of 5551, 565 etc in the
control register. Notably it also adds a packed RGB888
24BPP mode.
We add support by detecting this variant and also adding a
small plug-in that will mux the LCDC out if the ASIC happens
to be muxed to the other graphics controller (they are
mutually exclusive).
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180621184450.25377-1-linus.walleij@linaro.org
Diffstat (limited to 'drivers/gpu/drm/pl111/pl111_drm.h')
| -rw-r--r-- | drivers/gpu/drm/pl111/pl111_drm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/pl111/pl111_drm.h b/drivers/gpu/drm/pl111/pl111_drm.h index ce4501d0ab48..1aa015ccacef 100644 --- a/drivers/gpu/drm/pl111/pl111_drm.h +++ b/drivers/gpu/drm/pl111/pl111_drm.h @@ -36,11 +36,14 @@ struct drm_minor; * struct pl111_variant_data - encodes IP differences * @name: the name of this variant * @is_pl110: this is the early PL110 variant + * @is_lcdc: this is the ST Microelectronics Nomadik LCDC variant * @external_bgr: this is the Versatile Pl110 variant with external * BGR/RGB routing * @broken_clockdivider: the clock divider is broken and we need to * use the supplied clock directly * @broken_vblank: the vblank IRQ is broken on this variant + * @st_bitmux_control: this variant is using the ST Micro bitmux + * extensions to the control register * @formats: array of supported pixel formats on this variant * @nformats: the length of the array of supported pixel formats * @fb_bpp: desired bits per pixel on the default framebuffer @@ -48,9 +51,11 @@ struct drm_minor; struct pl111_variant_data { const char *name; bool is_pl110; + bool is_lcdc; bool external_bgr; bool broken_clockdivider; bool broken_vblank; + bool st_bitmux_control; const u32 *formats; unsigned int nformats; unsigned int fb_bpp; |