Commit graph

6 commits

Author SHA1 Message Date
Fabio Estevam
d1486e3352 video: ipu_disp: Return a negative value on error
We should return a negative error number (-EINVAL) on error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-12-04 13:27:55 +01:00
Fabio Estevam
2740e5de4f video: ipu_disp: Fix clock polarity logic
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>
Tested-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Stefano Babic <sbabic@denx.de>
2013-10-30 10:37:59 +01:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Eric Nelson
cf65d478ab ipu_common: Add ldb_clk for use in parenting the pixel clock
Add ldb_clk for use in parenting the pixel clock.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2012-07-10 11:35:39 +02:00
Marek Vasut
564964bd85 GCC4.6: Squash warnings in ipu_disp.c
ipu_disp.c: In function ‘ipu_disp_set_global_alpha’:
ipu_disp.c:1237:11: warning: variable ‘flow’ set but not used
[-Wunused-but-set-variable]
ipu_disp.c: In function ‘ipu_disp_set_color_key’:
ipu_disp.c:1302:16: warning: variable ‘flow’ set but not used
[-Wunused-but-set-variable]

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
2011-10-01 23:26:36 +02:00
Stefano Babic
575001e40c MX51: Add IPU driver for video support
The patch is a porting of the IPU Linux driver
developed by Freescale to have framebuffer
functionalities in u-boot. The port is based on
kernel 2.6.31 commit cc4fe714041805997b601fe8e5dd585d8a99297f,
as delivered by Freescale [i.MX BSP].
Most features are dropped from the original driver and
only LCD support is the goal of this porting.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2010-10-22 00:05:05 +02:00