From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Schocher Date: Fri, 07 Mar 2014 07:48:10 +0100 Subject: [U-Boot] [PATCH] video: Add support for TI's AM335x LCD-Controller In-Reply-To: <53188506.2090809@petermaier.org> References: <1394113146-21238-1-git-send-email-oe5hpm@oevsv.at> <53187EF3.1020405@denx.de> <53188506.2090809@petermaier.org> Message-ID: <53196BAA.2050808@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hello Hannes, Am 06.03.2014 15:24, schrieb Hannes Petermaier: > On 2014-03-06 14:58, Heiko Schocher wrote: >> Hello Hannes, >> >> Am 06.03.2014 14:39, schrieb Hannes Petermaier: >>> - Adds support for a minimal framebuffer driver of TI's AM335x SoC >>> to be compatible with Wolfgang Denk's LCD-Framework (CONFIG_LCD, >>> common/lcd.c) >>> >>> Signed-off-by: Hannes Petermaier >>> --- >>> drivers/video/Makefile | 1 + >>> drivers/video/am335x-fb.c | 169 +++++++++++++++++++++++++++++++++++++++++++++ >>> drivers/video/am335x-fb.h | 67 ++++++++++++++++++ >>> 3 files changed, 237 insertions(+) >>> create mode 100644 drivers/video/am335x-fb.c >>> create mode 100644 drivers/video/am335x-fb.h >> >> Why you cannot use: >> >> u-boot:drivers/video/da8xx-fb.c ? >> >> bye, >> Heiko > Hi Heiko, > > for my opinion this clone of the linux-driver is very overloaded and difficult to use/configure. > With the words 'small-is-beautiful' and 'keep-it-simple' i've wrote a few lines which do the minimum: > - configure raster-controller > - setup DMA > - powerON Display > > maybe we can use the small-version in other projects too. Why is it difficult to use/configure the existing driver? Look for example into the board/siemens/pxm2/board.c board, which uses this driver. You have to define: static struct da8xx_panel lcd_panels[] static const struct display_panel disp_panel static const struct lcd_ctrl_config lcd_cfg and call "da8xx_video_init(&lcd_panels[0], &lcd_cfg, lcd_cfg.bpp);" Thats all ... bye, Heiko -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany