Hello JJ, On 15/06/2014 11:32, Jean-Jacques Hiblot wrote: > > On 06/09/2014 06:04 PM, Boris BREZILLON wrote: >> The Atmel HLCDC (High LCD Controller) IP available on some Atmel SoCs (i.e. >> at91sam9n12, at91sam9x5 family or sama5d3 family) provides a display >> controller device. >> >> This display controller support at least one primary plane and might >> provide several overlays and an hardware cursor depending on the IP >> version. >> >> Signed-off-by: Boris BREZILLON <boris.brezillon@xxxxxxxxxxxxxxxxxx> >> --- [...] >> + vm.vfront_porch > 0x40 || vm.vfront_porch < 0 || >> + vm.vback_porch > 0x40 || vm.vback_porch < 0 || >> + vm.hfront_porch > 0x200 || vm.hfront_porch < 0 || >> + vm.hback_porch > 0x200 || vm.hback_porch < 0 || >> + mode->hdisplay > 2048 || mode->hdisplay < 0 || >> + mode->vdisplay > 2048 || mode->vdisplay < 0) >> + return -EINVAL; >> + >> + regmap_write(regmap, ATMEL_HLCDC_CFG(1), >> + (vm.hsync_len - 1) | ((vm.vsync_len - 1) << 16)); >> + >> + regmap_write(regmap, ATMEL_HLCDC_CFG(2), >> + (vm.vfront_porch - 1) | ((vm.vback_porch - 1) << 16)); > Acording to the datasheet, it's vm.vback_porch instead of > (vm.vback_porch -1). Oh, nice catch! I'll check with Atmel that this is not a typo in their datasheet, because all other fields need the minus 1. Thanks for your review. Best Regards, Boris -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
