Commit Graph

9 Commits

Author SHA1 Message Date
Koji Matsuoka
6bc2e15cf2 drm: rcar-du: lvds: Add R-Car Gen3 support
The LVDS encoder differs slightly in Gen3 SoCs in its PLL configuration.
Add support for the Gen3 LVDS PLL parameters and startup procedure.

Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-02-23 09:34:32 +02:00
Laurent Pinchart
82e7c5e496 drm: rcar-du: lvds: Rename PLLEN bit to PLLON
The bit is named PLLON in the datasheet, rename it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-02-23 09:34:31 +02:00
Laurent Pinchart
5e1ac3bdc6 drm: rcar-du: lvds: Fix PLL frequency-related configuration
The frequency checks don't match the datasheet, fix them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-02-23 09:34:30 +02:00
Laurent Pinchart
d9829a3289 drm: rcar-du: lvds: Avoid duplication of clock clamp code
Replace the duplicate code by a single central function.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-02-23 09:34:30 +02:00
Laurent Pinchart
44ef7ed5ac drm: rcar-du: Replace LVDS encoder DPMS by enable/disable
The LVDS encoder doesn't support DPMS states, replace the DPMS operation
by enable/disable to avoid propagating DPMS states down to the encoder
code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2015-03-03 16:16:14 +02:00
Laurent Pinchart
36d50464e0 drm/rcar-du: Update copyright notice
The "Renesas Corporation" listed in the copyright notice doesn't exist.
Replace it with "Renesas Electronics Corporation" and update the
copyright years.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-09-15 11:34:06 +03:00
Laurent Pinchart
5cca30ebe0 drm/rcar-du: Add LVDS_LANES quirk
LVDS lanes 1 and 3 are switched in ES1 hardware (R8A7790). The problem
has been fixed in newer revisions, add a quirk to make the workaround
selectable.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-12-02 01:27:28 +01:00
Wei Yongjun
c8ca9d6aa6 drm/rcar-du: fix return value check in rcar_du_lvdsenc_get_resources()
In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR(). Also remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-12-02 01:27:24 +01:00
Laurent Pinchart
90374b5c25 drm/rcar-du: Add internal LVDS encoder support
The R8A7790 includes two internal LVDS encoders. Support them in the DU
driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-08-09 23:17:53 +02:00