linux/linux-stable.git - Linux kernel stable tree

Age	Commit message (Collapse)	Author
2017-03-10	drm: mxsfb: Implement drm_panel handling	Fabio Estevam
	Currently when the 'power-supply' regulator is passed via device tree it does not actually work since drm_panel_prepare()/drm_panel_enable() are never called. Quoting Thierry Reding: "It should really call drm_panel_prepare() and drm_panel_enable() while switching on the display pipeline and drm_panel_disable(), followed by drm_panel_unprepare() while switching off the display pipeline." So do as suggested, so that the 'power-supply' regulator can be functional. Reported-by: Breno Lima <breno.lima@nxp.com> Suggested-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-02	drm: Rely on mode_config data for fb_helper initialization	Gabriel Krisman Bertazi
	Instead of receiving the num_crts as a parameter, we can read it directly from the mode_config structure. I audited the drivers that invoke this helper and I believe all of them initialize the mode_config struct accordingly, prior to calling the fb_helper. I used the following coccinelle hack to make this transformation, except for the function headers and comment updates. The first and second rules are split because I couldn't find a way to remove the unused temporary variables at the same time I removed the parameter. // <smpl> @r@ expression A,B,D,E; identifier C; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) \| - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) \| - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ expression A,B,C,D,E; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) \| - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) \| - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ identifier r.C; type T; expression V; @@ - T C; <... when != C - C = V; ...> // </smpl> Changes since v1: - Rebased on top of the tip of drm-misc-next. - Remove mention to sti since a proper fix got merged. Suggested-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2016-12-13	drm: mxsfb: drm_dev_alloc() returns error pointers	Dan Carpenter
	We should be checking for IS_ERR() instead of NULL because drm_dev_alloc() returns error pointers. Fixes: 45d59d704080 ("drm: Add new driver for MXSFB controller") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161213122332.GA7519@elgon.mountain
2016-12-06	drm: Add new driver for MXSFB controller	Marek Vasut
	Add new driver for the MXSFB controller found in i.MX23/28/6SX . The MXSFB controller is a simple framebuffer controller with one parallel LCD output. Unlike the MXSFB fbdev driver that is used on these systems now, this driver uses the DRM/KMS framework. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Shawn Guo <shawnguo@kernel.org>