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staging: drm/imx: handle framebuffer offsets correctly 

We didn't take the pixel format into account, so x-direction
offsets were off by a factor of 2 or 4 for 16bpp and 32bpp
framebuffers.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lucas Stach 2014-01-10 16:17:29 +01:00 committed by Greg Kroah-Hartman
parent ee2e072e84
commit bc2b067aab
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/imx-drm/ipuv3-plane.c
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@ -78,7 +78,8 @@ int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
cpmem = ipu_get_cpmem(ipu_plane->ipu_ch);
ipu_cpmem_set_stride(cpmem, fb->pitches[0]);
eba = cma_obj->paddr + fb->offsets[0] + fb->pitches[0] * y + x;
eba = cma_obj->paddr + fb->offsets[0] +
fb->pitches[0] * y + (fb->bits_per_pixel >> 3) * x;
ipu_cpmem_set_buffer(cpmem, 0, eba);
ipu_cpmem_set_buffer(cpmem, 1, eba);