Re: [U-Boot] [PATCH] video: ipu_disp: Fix clock polarity logic

On Tue, 29 Oct 2013 15:46:21 -0200 Fabio Estevam fabio.estevam@freescale.com wrote:

Currently the HDMI splash screen image quality on mx6solo does not show a very stable image.

By comparing the IPU driver from U-boot with the one from FSL 4.1.0 BSP, we can see that there is an inverted logic for setting the DI_GEN_POL_CLK bit.

From FSL BSP [1] we have:

if (!sig.clk_pol) di_gen |= DI_GEN_POLARITY_DISP_CLK;

Applying the same logic into U-boot fixes the HDMI image stability.

[1] git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/drivers/mxc/ipu3/ipu_disp.c?h=imx_3.0.35_4.1.0

Signed-off-by: Fabio Estevam fabio.estevam@freescale.com

drivers/video/ipu_disp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

applied to u-boot-video/master.

Thanks,

Anatolij