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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2011-12-12 16:36:13 +0100
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-03-12 22:41:11 +0100
commit481100506b34d666243832c3f2aee905c03cb8e7 (patch)
treecee1b897a4c87c5c211d75d70ecb73095001576b /include/video
parent974d250be2c70c7bf899275b23b241685d4ed7f8 (diff)
downloadlinux-481100506b34d666243832c3f2aee905c03cb8e7.tar.bz2
fbdev: sh_mobile_meram: Allocate ICBs automatically
Instead of manually specifying the ICBs to use in platform data, allocate them automatically at runtime. The range of reserved ICBs (for instance to be used through UIO), if any, is passed in the platform data reserved_icbs field as a bitmask. The MERAM registration function now returns a pointer to an opaque MERAM object, which is passed to the update and unregistration functions. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'include/video')
-rw-r--r--include/video/sh_mobile_meram.h27
1 files changed, 16 insertions, 11 deletions
diff --git a/include/video/sh_mobile_meram.h b/include/video/sh_mobile_meram.h
index f7700fcb054a..e0f650c843c7 100644
--- a/include/video/sh_mobile_meram.h
+++ b/include/video/sh_mobile_meram.h
@@ -17,8 +17,13 @@ enum {
struct sh_mobile_meram_priv;
struct sh_mobile_meram_ops;
+/*
+ * struct sh_mobile_meram_info - MERAM platform data
+ * @reserved_icbs: Bitmask of reserved ICBs (for instance used through UIO)
+ */
struct sh_mobile_meram_info {
int addr_mode;
+ u32 reserved_icbs;
struct sh_mobile_meram_ops *ops;
struct sh_mobile_meram_priv *priv;
struct platform_device *pdev;
@@ -39,23 +44,23 @@ struct module;
struct sh_mobile_meram_ops {
struct module *module;
/* register usage of meram */
- int (*meram_register)(struct sh_mobile_meram_info *meram_dev,
- const struct sh_mobile_meram_cfg *cfg,
- unsigned int xres, unsigned int yres,
- unsigned int pixelformat,
- unsigned long base_addr_y,
- unsigned long base_addr_c,
- unsigned long *icb_addr_y,
- unsigned long *icb_addr_c,
- unsigned int *pitch);
+ void *(*meram_register)(struct sh_mobile_meram_info *meram_dev,
+ const struct sh_mobile_meram_cfg *cfg,
+ unsigned int xres, unsigned int yres,
+ unsigned int pixelformat,
+ unsigned long base_addr_y,
+ unsigned long base_addr_c,
+ unsigned long *icb_addr_y,
+ unsigned long *icb_addr_c,
+ unsigned int *pitch);
/* unregister usage of meram */
int (*meram_unregister)(struct sh_mobile_meram_info *meram_dev,
- const struct sh_mobile_meram_cfg *cfg);
+ void *data);
/* update meram settings */
int (*meram_update)(struct sh_mobile_meram_info *meram_dev,
- const struct sh_mobile_meram_cfg *cfg,
+ void *data,
unsigned long base_addr_y,
unsigned long base_addr_c,
unsigned long *icb_addr_y,