From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Date: Tue, 25 Sep 2012 13:40:54 +0000 Subject: Re: [PATCH] OMAPDSS: DISPC: Add predecimation limit for TILER based rotations Message-Id: <1348580454.2342.40.camel@deskari> MIME-Version: 1 Content-Type: multipart/mixed; boundary="=-qDssQnSI5OWYN5zN5SQ9" List-Id: References: <1348468707-5142-1-git-send-email-cmahapatra@ti.com> In-Reply-To: <1348468707-5142-1-git-send-email-cmahapatra@ti.com> To: Chandrabhanu Mahapatra Cc: linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org --=-qDssQnSI5OWYN5zN5SQ9 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 2012-09-24 at 12:08 +0530, Chandrabhanu Mahapatra wrote: > In OMAP4 and OMAP5 when TILER 2D burst mode is used, a maximum of one lin= e can > be skipped as per the respective TRMs. The MBlockStride OCP signal, which= is > sum of ROWINC and image width in memory, is only 17 bits wide. In 2D mode= TILER > supports 8192, 16384, 32768 and 65536 values of MBlockStride. In case whe= n 2 or > more lines are skipped the ROWINC value exceeds 65536 resulting in OCP er= rors. > So, maximum vertical predecimation achievable is 2. >=20 > Signed-off-by: Chandrabhanu Mahapatra > --- > drivers/video/omap2/dss/dispc.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) Thanks, looks fine to me. Tomi --=-qDssQnSI5OWYN5zN5SQ9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQYbRmAAoJEPo9qoy8lh7160UP/RyXLZNmyr/dltMOFbXQ3y0A 26I2vHT0fIfWQuUl/+Xi2kHj83AQTd3x1j8AxitBtiCe2dbk5ub78+tSg2f2rbSp JNFxqn40SHd0mehWjHig/z7tgCnRbC+0T55IWgib4utGMIQZuw7TE6vYHNlVCle6 wOGe7maFs1C1lVDaqbcf39PNb6+anMtK6vfk6jbvWnOXITLkMZkJ0EVT1ffagTQq sTz/33EwU41i3aKaTnZ1vPOu4STCfzeln4tialmw0pHWbYiSBpjGWx1GVdGqjd1V ujR1LLQHmfVB7U7QK4tfFTi9ZfRKIPqZeKSV5kvuS2t8tT5B0ryq/PCo5HiIw28H ZyMvZ3qV95u71btwSRFNMP7xgUEW7JitzuUw0CjZ43i/C/rFJYoNIYgvxV2e2+lw HHksynGFfkUZAZEMTM4tjvbnp8OinTaOZIbIRSV0P17dKr53b3JGVxXY0lQEKpC9 gUxTZU7eSuZWV5YRnQT5zWBSYD3kl71T77Bht38HxGzMXqIKcSfUJ/YlHdFg4lgq EC3XvdJ/tx47mpfZ8MME5KhtcYDOBwek+GkMPXgbeEFXecAPbotcORVKOLsSl/lB 6Jo+Fk6LCO/3a1X1BjWmkGA4S/qj44peneaQPU7X9CluKVjXsCnOPDfexBi9fqd2 rsYb2/gNuAhOqyAuaL0c =WyRC -----END PGP SIGNATURE----- --=-qDssQnSI5OWYN5zN5SQ9--