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sh_mobile_meram: Use direct function calls for the public API

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There's no reason to use abstract operation pointers to implement the
MERAM API. Replace them by direct function calls.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2012-03-15 12:40:47 +01:00
parent 4a23717721
commit 6e729b416b
3 changed files with 63 additions and 50 deletions
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27
drivers/video/sh_mobile_lcdcfb.c
View file

@ -1115,13 +1115,12 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
ch->line_size = ch->pitch;
/* Enable MERAM if possible. */
if (mdev == NULL || mdev->ops == NULL ||
ch->cfg->meram_cfg == NULL)
if (mdev == NULL || ch->cfg->meram_cfg == NULL)
continue;
/* Free the allocated MERAM cache. */
if (ch->cache) {
mdev->ops->cache_free(mdev, ch->cache);
sh_mobile_meram_cache_free(mdev, ch->cache);
ch->cache = NULL;
}
@ -1144,11 +1143,11 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
break;
}
cache = mdev->ops->cache_alloc(mdev, ch->cfg->meram_cfg,
cache = sh_mobile_meram_cache_alloc(mdev, ch->cfg->meram_cfg,
ch->pitch, ch->yres, pixelformat,
&ch->line_size);
if (!IS_ERR(cache)) {
mdev->ops->cache_update(mdev, cache,
sh_mobile_meram_cache_update(mdev, cache,
ch->base_addr_y, ch->base_addr_c,
&ch->base_addr_y, &ch->base_addr_c);
ch->cache = cache;
@ -1223,9 +1222,7 @@ static void sh_mobile_lcdc_stop(struct sh_mobile_lcdc_priv *priv)
/* Free the MERAM cache. */
if (ch->cache) {
struct sh_mobile_meram_info *mdev;
mdev = priv->meram_dev;
mdev->ops->cache_free(mdev, ch->cache);
sh_mobile_meram_cache_free(priv->meram_dev, ch->cache);
ch->cache = 0;
}
@ -1808,7 +1805,7 @@ static int sh_mobile_lcdc_pan(struct fb_var_screeninfo *var,
struct sh_mobile_lcdc_priv *priv = ch->lcdc;
unsigned long ldrcntr;
unsigned long new_pan_offset;
unsigned long base_addr_y, base_addr_c;
unsigned long base_addr_y, base_addr_c = 0;
unsigned long c_offset;
if (!ch->format->yuv)
@ -1837,14 +1834,10 @@ static int sh_mobile_lcdc_pan(struct fb_var_screeninfo *var,
base_addr_c += var->xoffset;
}
if (ch->cache) {
struct sh_mobile_meram_info *mdev;
mdev = priv->meram_dev;
mdev->ops->cache_update(mdev, ch->cache,
base_addr_y, base_addr_c,
&base_addr_y, &base_addr_c);
}
if (ch->cache)
sh_mobile_meram_cache_update(priv->meram_dev, ch->cache,
base_addr_y, base_addr_c,
&base_addr_y, &base_addr_c);
ch->base_addr_y = base_addr_y;
ch->base_addr_c = base_addr_c;

38
drivers/video/sh_mobile_meram.c
View file

@ -11,6 +11,7 @@
#include <linux/device.h>
#include <linux/err.h>
#include <linux/export.h>
#include <linux/genalloc.h>
#include <linux/io.h>
#include <linux/kernel.h>
@ -429,11 +430,10 @@ error:
return ERR_PTR(-ENOMEM);
}
static void *sh_mobile_cache_alloc(struct sh_mobile_meram_info *pdata,
const struct sh_mobile_meram_cfg *cfg,
unsigned int xres, unsigned int yres,
unsigned int pixelformat,
unsigned int *pitch)
void *sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *pdata,
const struct sh_mobile_meram_cfg *cfg,
unsigned int xres, unsigned int yres,
unsigned int pixelformat, unsigned int *pitch)
{
struct sh_mobile_meram_fb_cache *cache;
struct sh_mobile_meram_priv *priv = pdata->priv;
@ -441,6 +441,9 @@ static void *sh_mobile_cache_alloc(struct sh_mobile_meram_info *pdata,
unsigned int nplanes = is_nvcolor(pixelformat) ? 2 : 1;
unsigned int out_pitch;
if (priv == NULL)
return ERR_PTR(-ENODEV);
if (pixelformat != SH_MOBILE_MERAM_PF_NV &&
pixelformat != SH_MOBILE_MERAM_PF_NV24 &&
pixelformat != SH_MOBILE_MERAM_PF_RGB)
@ -485,9 +488,10 @@ err:
mutex_unlock(&priv->lock);
return cache;
}
EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_alloc);
static void
sh_mobile_cache_free(struct sh_mobile_meram_info *pdata, void *data)
void
sh_mobile_meram_cache_free(struct sh_mobile_meram_info *pdata, void *data)
{
struct sh_mobile_meram_fb_cache *cache = data;
struct sh_mobile_meram_priv *priv = pdata->priv;
@ -507,11 +511,14 @@ sh_mobile_cache_free(struct sh_mobile_meram_info *pdata, void *data)
mutex_unlock(&priv->lock);
}
EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_free);
static void
sh_mobile_cache_update(struct sh_mobile_meram_info *pdata, void *data,
unsigned long base_addr_y, unsigned long base_addr_c,
unsigned long *icb_addr_y, unsigned long *icb_addr_c)
void
sh_mobile_meram_cache_update(struct sh_mobile_meram_info *pdata, void *data,
unsigned long base_addr_y,
unsigned long base_addr_c,
unsigned long *icb_addr_y,
unsigned long *icb_addr_c)
{
struct sh_mobile_meram_fb_cache *cache = data;
struct sh_mobile_meram_priv *priv = pdata->priv;
@ -523,13 +530,7 @@ sh_mobile_cache_update(struct sh_mobile_meram_info *pdata, void *data,
mutex_unlock(&priv->lock);
}
static struct sh_mobile_meram_ops sh_mobile_meram_ops = {
.module = THIS_MODULE,
.cache_alloc = sh_mobile_cache_alloc,
.cache_free = sh_mobile_cache_free,
.cache_update = sh_mobile_cache_update,
};
EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_update);
/* -----------------------------------------------------------------------------
* Power management
@ -620,7 +621,6 @@ static int __devinit sh_mobile_meram_probe(struct platform_device *pdev)
for (i = 0; i < MERAM_ICB_NUM; ++i)
priv->icbs[i].index = i;
pdata->ops = &sh_mobile_meram_ops;
pdata->priv = priv;
pdata->pdev = pdev;

48
include/video/sh_mobile_meram.h
View file

@ -15,7 +15,6 @@ enum {
struct sh_mobile_meram_priv;
struct sh_mobile_meram_ops;
/*
* struct sh_mobile_meram_info - MERAM platform data
@ -24,7 +23,6 @@ struct sh_mobile_meram_ops;
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;
};
@ -38,21 +36,43 @@ struct sh_mobile_meram_cfg {
struct sh_mobile_meram_icb_cfg icb[2];
};
struct module;
struct sh_mobile_meram_ops {
struct module *module;
#if defined(CONFIG_FB_SH_MOBILE_MERAM) || \
defined(CONFIG_FB_SH_MOBILE_MERAM_MODULE)
void *sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
const struct sh_mobile_meram_cfg *cfg,
unsigned int xres, unsigned int yres,
unsigned int pixelformat,
unsigned int *pitch);
void sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data);
void sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
unsigned long base_addr_y,
unsigned long base_addr_c,
unsigned long *icb_addr_y,
unsigned long *icb_addr_c);
#else
static inline void *
sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
const struct sh_mobile_meram_cfg *cfg,
unsigned int xres, unsigned int yres,
unsigned int pixelformat,
unsigned int *pitch)
{
return ERR_PTR(-ENODEV);
}
/* LCDC cache management */
void *(*cache_alloc)(struct sh_mobile_meram_info *meram_dev,
const struct sh_mobile_meram_cfg *cfg,
unsigned int xres, unsigned int yres,
unsigned int pixelformat, unsigned int *pitch);
void (*cache_free)(struct sh_mobile_meram_info *meram_dev, void *data);
void (*cache_update)(struct sh_mobile_meram_info *meram_dev, void *data,
static inline void
sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data)
{
}
static inline void
sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
unsigned long base_addr_y,
unsigned long base_addr_c,
unsigned long *icb_addr_y,
unsigned long *icb_addr_c);
};
unsigned long *icb_addr_c)
{
}
#endif
#endif /* __VIDEO_SH_MOBILE_MERAM_H__ */