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path: root/drivers/video/ipu_disp.c
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* MLK-11897 video: ipu: fix out of bounds accessPeng Fan2015-11-27-1/+1
| | | | | | | | | We need to access reg stp_rep9, but not stp_rep[(9 - 1) / 2]. If using "__raw_writel(0, DI_STP_REP(disp, 9))", this will exceeds the size of stp_rep array. Acked-by: Liu Ying <Ying.Liu@freescale.com> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
* MLK-10747-2 video: ipu: Enable/disable LDB_DI clock when necessaryLiu Ying2015-05-07-2/+8
| | | | | | | | This patch adds enable/disable hooks support for ldb_di[0/1] clocks and enables/disables them when necessary. Signed-off-by: Liu Ying <Ying.Liu@freescale.com> (cherry picked from commit 839a1da941be48baf27c9cb28939cc6b2030424a)
* MLK-10747-1 video: ipu: Build ldb_di clock relevant code only for MX6 and MX53Liu Ying2015-05-07-1/+5
| | | | | | | | The LDB is found in MX6 variants and MX53, so this patch makes the ldb_di clock relevant code be built only for them. Signed-off-by: Liu Ying <Ying.Liu@freescale.com> (cherry picked from commit c0dc175a9780505ec8939bda5dda9c2ec549a7f0)
* ENGR00315499-22 video: ipu: wait for DP SF end irq when disabling sync BG flowLiu Ying2015-04-29-1/+1
| | | | | | | | | | | | | | | Instead of waiting for DC triple buffer to be cleared, this patch changes to wait for a relevant DP sync flow end irq when disabling sync BG flows. In this way, we align the implement to the FSL internal IPUv3 driver. After applying this patch, the uboot hang up issue at the arch_preboot_os stage on the MX6DL platforms is not observed any more. Signed-off-by: Liu Ying <Ying.Liu@freescale.com> Signed-off-by: Nitin Garg <nitin.garg@freescale.com> (cherry picked from commit 56d72035946c40f45d2f49ccb1520734e34ecc89) Signed-off-by: Peng Fan <Peng.Fan@freescale.com> (cherry picked from commit d8ac526681589c62287d014fedee4c9e64fbca66) Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
* video: ipu: prevent warnings with W=1Jeroen Hofstee2014-10-25-13/+2
| | | | | | | - make local functions static - remove unused is_interlaced function Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* video: ipu_disp: remove pixclk fixupJeroen Hofstee2014-10-16-25/+6
| | | | | | | | | | | | | | The ipu display insists on having a lower_margin smaller then 2. If this is not the case it will attempt to force it and adjust the pixclk accordingly. This multiplies pixclk in Hz with the width and height, since this is typically a * 10^7 * b * 10^2 * c * 10^2 this will overflow the uint_32 and make things even worse. Since this is a bootloader and the adjustment is neglectible, just force it to two and warn about it. Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* video: ipu: fix debug and commentJeroen Hofstee2014-10-16-1/+1
| | | | | | | | - fix debug pixel clk display and add unit - fix some comments Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* video: ipu_disp: squash clang warningJeroen Hofstee2014-08-11-1/+1
| | | | | | | | | | | | Since rgb2ycbcr_coeff and friends are declared const, but assigned to a void pointer, clang will warn that the const is implicity casted away. If the pointer is changed to void const * gcc will warn when it is implicitly casted to a const int array. Just add a correctly typed pointer instead to prevent these casts and hence the warnings. Cc: Troy Kisky <troy.kisky@boundarydevices.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* video: ipu_disp: wait for DP SF end irq when disabling sync BG flowsLiu Ying2014-08-11-19/+8
| | | | | | | | | | | | Instead of waiting for DC triple buffer to be cleared, this patch changes to wait for a relevant DP sync flow end interrupt to come when disabling sync BG flows. In this way, we align the implement to the freescale internal IPUv3 driver. After applying this patch, an uboot hang up issue at the arch_preboot_os() stage, where we disable a relevant ipu display channel, is not observed any more on some MX6DL platforms. Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
* video: ipu_disp: Return a negative value on errorFabio Estevam2013-12-04-1/+1
| | | | | | We should return a negative error number (-EINVAL) on error. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* video: ipu_disp: Fix clock polarity logicFabio Estevam2013-10-30-1/+1
| | | | | | | | | | | | | | | | | | | | | | 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>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-17/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* ipu_common: Add ldb_clk for use in parenting the pixel clockEric Nelson2012-07-10-1/+2
| | | | | | | 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>
* GCC4.6: Squash warnings in ipu_disp.cMarek Vasut2011-10-01-48/+39
| | | | | | | | | | | | 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>
* MX51: Add IPU driver for video supportStefano Babic2010-10-22-0/+1359
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>
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