changes since v1: Since v1 was not tested when I posted it, now that I have the s6e8aa0 panel, I tested the same on Exynos5 SoC. Needed to make below mentioned changes to make it work.
In exynos mipi driver: 1> added "enable_hs" as part of "dsi_video_source_ops", as this function needs to be called from the s6e8aa0 panel probe after LCD "power_on".
2> moved the call exynos_mipi_dsi_set_hs_enable() out of the exynos_mipi_update_cfg() function as it needs to be called only after the LCD "power_on". hence in s6e8aa0 probe added call "enable_hs" after "power_on". otherwise DSI COMMAND TIME OUT error occurs, after sending WRITE COMMAND. Prior to CDF changes, things used to work fine, as the panel used to register with MIPI DSIM driver and in the MIPI DSI probe used to call LCD "power_on" first and then "exynos_mipi_dsi_set_hs_enable". Since the CDF support is introduced, the both panel and mipi dsi probe happens independently and DSI COMMAND TIME OUT error used to occurs, after sending WRITE COMMAND. by making above mentioned changes it started working.
In s6e8ax0 driver: 1> added call "enable_hs" in probe after "power_on", to over come above mentioned error. 2> addd init_lcd(), the missing sequence to initialise the lcd.
This patch series contains 3 patches with the following changes
is based on CDF-T proposed by Tomi Valkeinen tomi.valkeinen@ti.com http://lwn.net/Articles/529489/
[PATCH 1/3] video: display: Adding frame related ops to MIPI DSI video source struct Adds the frame related ops to the MIPI DSI video source struct
[PATCH 2/3] video: exynos: mipi dsi: Making Exynos MIPI Compliant with CDF Makes the Exynos MIPI DSI driver compliant with CDF. [PATCH 3/3] video: exynos: Making s6e8ax0 panel driver compliant with CDF
Makes the Exynos s6e8ax0 panel driver compliant with CDF. Have made necessary changes in s6e8ax0 panel driver, made an effort to remove dependency on backlight and lcd framework, but its NOT fully done. s6e8ax0_get_brightness() and s6e8ax0_set_brightness() functionalities have NOT been modified. as backlight support in CDF are _NOT_ implemented yet. Thought of adding these "get and set" as part of display_entity_control_ops(), but didn't modify as of now. Any thoughts on the same will be helpful. removed the lcd_ops "set_power and get_power" and added as part of panel_set_state.
Testing: Tested on Exynos5 SoC with s6e8aa0 panel connected, by applying some of the dependent patches Could see the linux logo and ran "modetest" application and saw the test pattern on display panel.
Vikas Sajjan (3): video: display: Adding frame related ops to MIPI DSI video source struct video: exynos: mipi dsi: Making Exynos MIPI Compliant with CDF video: exynos: Making s6e8ax0 panel driver compliant with CDF
drivers/video/exynos/exynos_mipi_dsi.c | 197 ++---- drivers/video/exynos/exynos_mipi_dsi_common.c | 22 +- drivers/video/exynos/exynos_mipi_dsi_common.h | 12 +- drivers/video/exynos/s6e8ax0.c | 848 +++++++++++++------------ include/video/display.h | 6 + include/video/exynos_mipi_dsim.h | 5 +- 6 files changed, 519 insertions(+), 571 deletions(-)