kernel/linux.git/drivers/media/platform/rockchip, branch linux-4.16.y

media: rockchip/rga: annotate PM functions as __maybe_unused

2017-10-31T11:21:56+00:00

The newly added driver has incorrect #ifdef annotations on its PM functions, leading to a harmless compile-time warning when CONFIG_PM is disabled: drivers/media/platform/rockchip/rga/rga.c:760:13: error: 'rga_disable_clocks' defined but not used [-Werror=unused-function] static void rga_disable_clocks(struct rockchip_rga *rga) ^~~~~~~~~~~~~~~~~~ drivers/media/platform/rockchip/rga/rga.c:728:12: error: 'rga_enable_clocks' defined but not used [-Werror=unused-function] This removes the #ifdef and marks the functions as __maybe_unused, so gcc can silently drop all the unused code. Fixes: f7e7b48e6d79 ("[media] rockchip/rga: v4l2 m2m support") Signed-off-by: Arnd Bergmann Acked-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: rga: make some functions static

2017-10-16T23:26:04+00:00

drivers/media/platform/rockchip/rga/rga-hw.c:383:6: warning: no previous prototype for 'rga_cmd_set' [-Wmissing-prototypes] void rga_cmd_set(struct rga_ctx *ctx) ^~~~~~~~~~~ drivers/media/platform/rockchip/rga/rga.c:359:17: warning: no previous prototype for 'rga_fmt_find' [-Wmissing-prototypes] struct rga_fmt *rga_fmt_find(struct v4l2_format *f) ^~~~~~~~~~~~ Signed-off-by: Mauro Carvalho Chehab

[media] rockchip/rga: v4l2 m2m support

2017-10-16T23:23:55+00:00

Rockchip RGA is a separate 2D raster graphic acceleration unit. It accelerates 2D graphics operations, such as point/line drawing, image scaling, rotation, BitBLT, alpha blending and image blur/sharpness The driver supports various operations from the rendering pipeline. - copy - fast solid color fill - rotation - flip - alpha blending The code in rga-hw.c is used to configure regs according to operations The code in rga-buf.c is used to create private mmu table for RGA. Signed-off-by: Jacob Chen Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab