From cd5351f4d2b1b884d8c21a7636d5c0ea3b69d123 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Sat, 12 Nov 2011 12:09:40 -0600 Subject: staging: add omapdrm DRM/KMS driver for TI OMAP platforms A DRM display driver for TI OMAP platform. Similar to omapfb (fbdev) and omap_vout (v4l2 display) drivers in the past, this driver uses the DSS2 driver to access the display hardware, including support for HDMI, DVI, and various types of LCD panels. And it implements GEM support for buffer allocation (for KMS as well as offscreen buffers used by the xf86-video-omap userspace xorg driver). The driver maps CRTCs to overlays, encoders to overlay-managers, and connectors to dssdev's. Note that this arrangement might change slightly when support for drm_plane overlays is added. For GEM support, non-scanout buffers are using the shmem backed pages provided by GEM core (In drm_gem_object_init()). In the case of scanout buffers, which need to be physically contiguous, those are allocated with CMA and use drm_gem_private_object_init(). See userspace xorg driver: git://github.com/robclark/xf86-video-omap.git Refer to this link for CMA (Continuous Memory Allocator): http://lkml.org/lkml/2011/8/19/302 Links to previous versions of the patch: v1: http://lwn.net/Articles/458137/ v2: http://patches.linaro.org/4156/ v3: http://patches.linaro.org/4688/ v4: http://patches.linaro.org/4791/ History: v5: move headers from include/drm at Greg KH's request, minor rebasing on 3.2-rc1, pull in private copies of drm_gem_{get,put}_pages() because "drm/gem: add functions to get/put pages" patch is not merged yet v4: bit of rework of encoder/connector _dpms() code, modeset_init() rework to not use nested functions, update TODO.txt v3: minor cleanups, improved error handling for dev_load(), some minor API changes that will be needed later for tiled buffer support v2: replace omap_vram with CMA for scanout buffer allocation, remove unneeded functions, use dma_addr_t for physical addresses, error handling cleanup, refactor attach/detach pages into common drm functions, split non-userspace-facing API into omap_priv.h, remove plugin API v1: original Signed-off-by: Rob Clark Acked-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman --- drivers/video/omap2/omapfb/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/video/omap2') diff --git a/drivers/video/omap2/omapfb/Kconfig b/drivers/video/omap2/omapfb/Kconfig index 83d3fe7ec9a..4ea17dc3258 100644 --- a/drivers/video/omap2/omapfb/Kconfig +++ b/drivers/video/omap2/omapfb/Kconfig @@ -1,6 +1,6 @@ menuconfig FB_OMAP2 tristate "OMAP2+ frame buffer support" - depends on FB && OMAP2_DSS + depends on FB && OMAP2_DSS && !DRM_OMAP select OMAP2_VRAM select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3 -- cgit v1.2.3 From 90ab5ee94171b3e28de6bb42ee30b527014e0be7 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Fri, 13 Jan 2012 09:32:20 +1030 Subject: module_param: make bool parameters really bool (drivers & misc) module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab Signed-off-by: Rusty Russell --- drivers/video/omap2/dss/core.c | 2 +- drivers/video/omap2/dss/dsi.c | 4 ++-- drivers/video/omap2/dss/dss.h | 2 +- drivers/video/omap2/omapfb/omapfb-main.c | 8 ++++---- drivers/video/omap2/omapfb/omapfb.h | 2 +- 5 files changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers/video/omap2') diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 86ec12e16c7..da7b1857654 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -50,7 +50,7 @@ module_param_named(def_disp, def_disp_name, charp, 0); MODULE_PARM_DESC(def_disp, "default display name"); #ifdef DEBUG -unsigned int dss_debug; +bool dss_debug; module_param_named(debug, dss_debug, bool, 0644); #endif diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 5abf8e7e745..46f37883e49 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -340,8 +340,8 @@ struct dsi_packet_sent_handler_data { static struct platform_device *dsi_pdev_map[MAX_NUM_DSI]; #ifdef DEBUG -static unsigned int dsi_perf; -module_param_named(dsi_perf, dsi_perf, bool, 0644); +static bool dsi_perf; +module_param(dsi_perf, bool, 0644); #endif static inline struct dsi_data *dsi_get_dsidrv_data(struct platform_device *dsidev) diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index 6308fc59fc9..57a52eecee9 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -28,7 +28,7 @@ #endif #ifdef DEBUG -extern unsigned int dss_debug; +extern bool dss_debug; #ifdef DSS_SUBSYS_NAME #define DSSDBG(format, ...) \ if (dss_debug) \ diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c index 70aa47de714..68ba1f80008 100644 --- a/drivers/video/omap2/omapfb/omapfb-main.c +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -43,18 +43,18 @@ static char *def_mode; static char *def_vram; -static int def_vrfb; +static bool def_vrfb; static int def_rotate; -static int def_mirror; +static bool def_mirror; static bool auto_update; static unsigned int auto_update_freq; module_param(auto_update, bool, 0); module_param(auto_update_freq, uint, 0644); #ifdef DEBUG -unsigned int omapfb_debug; +bool omapfb_debug; module_param_named(debug, omapfb_debug, bool, 0644); -static unsigned int omapfb_test_pattern; +static bool omapfb_test_pattern; module_param_named(test, omapfb_test_pattern, bool, 0644); #endif diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h index fdf0edeccf4..e12d384ea52 100644 --- a/drivers/video/omap2/omapfb/omapfb.h +++ b/drivers/video/omap2/omapfb/omapfb.h @@ -32,7 +32,7 @@ #include