[PATCH v3 2/7] sh_mobile_meram: Use direct function calls for the public API
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Wed Aug 8 08:21:03 PDT 2012
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 at ideasonboard.com>
---
drivers/video/sh_mobile_lcdcfb.c | 27 +++++++-------------
drivers/video/sh_mobile_meram.c | 40 +++++++++++++++---------------
include/video/sh_mobile_meram.h | 50 ++++++++++++++++++++++++++-----------
3 files changed, 65 insertions(+), 52 deletions(-)
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 5d12697..2ceb9c4 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -850,13 +850,12 @@ 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;
}
@@ -879,11 +878,11 @@ 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;
@@ -953,9 +952,7 @@ 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;
}
@@ -1040,7 +1037,7 @@ static int sh_mobile_fb_pan_display(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)
@@ -1069,14 +1066,10 @@ static int sh_mobile_fb_pan_display(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;
diff --git a/drivers/video/sh_mobile_meram.c b/drivers/video/sh_mobile_meram.c
index 4aa3fcb..fdb6fc1 100644
--- a/drivers/video/sh_mobile_meram.c
+++ b/drivers/video/sh_mobile_meram.c
@@ -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);
}
-
-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)
+EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_free);
+
+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;
diff --git a/include/video/sh_mobile_meram.h b/include/video/sh_mobile_meram.h
index 8a5afaf..1134837 100644
--- a/include/video/sh_mobile_meram.h
+++ b/include/video/sh_mobile_meram.h
@@ -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;
-
- /* 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,
+#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);
+}
+
+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__ */
--
1.7.8.6
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