mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 02:19:51 +00:00
drm/pl111: Handle the Versatile RGB/BGR565 mode
The ARM Versatile series can do RGB/BGR565 with an external "PLD" (Programmable Logical Device). However the CLCD does not have control bits for this, so it needs to be set into the ordinary 16BPP mode, then the RGB/BGR565 handling of the pixel data is handled by configuring the PLD through the external register. Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180206093540.8147-2-linus.walleij@linaro.org
This commit is contained in:
parent
3d95f76a11
commit
6470b7ddec
1 changed files with 13 additions and 2 deletions
|
@ -199,10 +199,17 @@ static void pl111_display_enable(struct drm_simple_display_pipe *pipe,
|
|||
cntl |= CNTL_LCDBPP24 | CNTL_BGR;
|
||||
break;
|
||||
case DRM_FORMAT_BGR565:
|
||||
cntl |= CNTL_LCDBPP16_565;
|
||||
if (priv->variant->is_pl110)
|
||||
cntl |= CNTL_LCDBPP16;
|
||||
else
|
||||
cntl |= CNTL_LCDBPP16_565;
|
||||
break;
|
||||
case DRM_FORMAT_RGB565:
|
||||
cntl |= CNTL_LCDBPP16_565 | CNTL_BGR;
|
||||
if (priv->variant->is_pl110)
|
||||
cntl |= CNTL_LCDBPP16;
|
||||
else
|
||||
cntl |= CNTL_LCDBPP16_565;
|
||||
cntl |= CNTL_BGR;
|
||||
break;
|
||||
case DRM_FORMAT_ABGR1555:
|
||||
case DRM_FORMAT_XBGR1555:
|
||||
|
@ -226,6 +233,10 @@ static void pl111_display_enable(struct drm_simple_display_pipe *pipe,
|
|||
break;
|
||||
}
|
||||
|
||||
/* The PL110 in Integrator/Versatile does the BGR routing externally */
|
||||
if (priv->variant->external_bgr)
|
||||
cntl &= ~CNTL_BGR;
|
||||
|
||||
/* Power sequence: first enable and chill */
|
||||
writel(cntl, priv->regs + priv->ctrl);
|
||||
|
||||
|
|
Loading…
Reference in a new issue