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-rw-r--r--drivers/video/fsl-diu-fb.c94
1 files changed, 46 insertions, 48 deletions
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index 29652ab15ee..c5f97318f19 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -360,8 +360,16 @@ struct fsl_diu_data {
enum fsl_diu_monitor_port monitor_port;
};
+enum mfb_index {
+ PLANE0 = 0, /* Plane 0, only one AOI that fills the screen */
+ PLANE1_AOI0, /* Plane 1, first AOI */
+ PLANE1_AOI1, /* Plane 1, second AOI */
+ PLANE2_AOI0, /* Plane 2, first AOI */
+ PLANE2_AOI1, /* Plane 2, second AOI */
+};
+
struct mfb_info {
- int index;
+ enum mfb_index index;
int type;
char *id;
int registered;
@@ -378,8 +386,8 @@ struct mfb_info {
static struct mfb_info mfb_template[] = {
- { /* AOI 0 for plane 0 */
- .index = 0,
+ {
+ .index = PLANE0,
.type = MFB_TYPE_OUTPUT,
.id = "Panel0",
.registered = 0,
@@ -387,8 +395,8 @@ static struct mfb_info mfb_template[] = {
.x_aoi_d = 0,
.y_aoi_d = 0,
},
- { /* AOI 0 for plane 1 */
- .index = 1,
+ {
+ .index = PLANE1_AOI0,
.type = MFB_TYPE_OUTPUT,
.id = "Panel1 AOI0",
.registered = 0,
@@ -397,8 +405,8 @@ static struct mfb_info mfb_template[] = {
.x_aoi_d = 0,
.y_aoi_d = 0,
},
- { /* AOI 1 for plane 1 */
- .index = 2,
+ {
+ .index = PLANE1_AOI1,
.type = MFB_TYPE_OUTPUT,
.id = "Panel1 AOI1",
.registered = 0,
@@ -407,8 +415,8 @@ static struct mfb_info mfb_template[] = {
.x_aoi_d = 0,
.y_aoi_d = 480,
},
- { /* AOI 0 for plane 2 */
- .index = 3,
+ {
+ .index = PLANE2_AOI0,
.type = MFB_TYPE_OUTPUT,
.id = "Panel2 AOI0",
.registered = 0,
@@ -417,8 +425,8 @@ static struct mfb_info mfb_template[] = {
.x_aoi_d = 640,
.y_aoi_d = 0,
},
- { /* AOI 1 for plane 2 */
- .index = 4,
+ {
+ .index = PLANE2_AOI1,
.type = MFB_TYPE_OUTPUT,
.id = "Panel2 AOI1",
.registered = 0,
@@ -519,11 +527,11 @@ static int fsl_diu_enable_panel(struct fb_info *info)
if (mfbi->type != MFB_TYPE_OFF) {
switch (mfbi->index) {
- case 0: /* plane 0 */
+ case PLANE0:
if (hw->desc[0] != ad->paddr)
wr_reg_wa(&hw->desc[0], ad->paddr);
break;
- case 1: /* plane 1 AOI 0 */
+ case PLANE1_AOI0:
cmfbi = machine_data->fsl_diu_info[2]->par;
if (hw->desc[1] != ad->paddr) { /* AOI0 closed */
if (cmfbi->count > 0) /* AOI1 open */
@@ -534,7 +542,7 @@ static int fsl_diu_enable_panel(struct fb_info *info)
wr_reg_wa(&hw->desc[1], ad->paddr);
}
break;
- case 3: /* plane 2 AOI 0 */
+ case PLANE2_AOI0:
cmfbi = machine_data->fsl_diu_info[4]->par;
if (hw->desc[2] != ad->paddr) { /* AOI0 closed */
if (cmfbi->count > 0) /* AOI1 open */
@@ -545,7 +553,7 @@ static int fsl_diu_enable_panel(struct fb_info *info)
wr_reg_wa(&hw->desc[2], ad->paddr);
}
break;
- case 2: /* plane 1 AOI 1 */
+ case PLANE1_AOI1:
pmfbi = machine_data->fsl_diu_info[1]->par;
ad->next_ad = 0;
if (hw->desc[1] == machine_data->dummy_ad->paddr)
@@ -553,7 +561,7 @@ static int fsl_diu_enable_panel(struct fb_info *info)
else /* AOI0 open */
pmfbi->ad->next_ad = cpu_to_le32(ad->paddr);
break;
- case 4: /* plane 2 AOI 1 */
+ case PLANE2_AOI1:
pmfbi = machine_data->fsl_diu_info[3]->par;
ad->next_ad = 0;
if (hw->desc[2] == machine_data->dummy_ad->paddr)
@@ -561,29 +569,25 @@ static int fsl_diu_enable_panel(struct fb_info *info)
else /* AOI0 was open */
pmfbi->ad->next_ad = cpu_to_le32(ad->paddr);
break;
- default:
- res = -EINVAL;
- break;
}
} else
res = -EINVAL;
return res;
}
-static int fsl_diu_disable_panel(struct fb_info *info)
+static void fsl_diu_disable_panel(struct fb_info *info)
{
struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par;
struct diu *hw = dr.diu_reg;
struct diu_ad *ad = mfbi->ad;
struct fsl_diu_data *machine_data = mfbi->parent;
- int res = 0;
switch (mfbi->index) {
- case 0: /* plane 0 */
+ case PLANE0:
if (hw->desc[0] != machine_data->dummy_ad->paddr)
wr_reg_wa(&hw->desc[0], machine_data->dummy_ad->paddr);
break;
- case 1: /* plane 1 AOI 0 */
+ case PLANE1_AOI0:
cmfbi = machine_data->fsl_diu_info[2]->par;
if (cmfbi->count > 0) /* AOI1 is open */
wr_reg_wa(&hw->desc[1], cmfbi->ad->paddr);
@@ -592,7 +596,7 @@ static int fsl_diu_disable_panel(struct fb_info *info)
wr_reg_wa(&hw->desc[1], machine_data->dummy_ad->paddr);
/* close AOI 0 */
break;
- case 3: /* plane 2 AOI 0 */
+ case PLANE2_AOI0:
cmfbi = machine_data->fsl_diu_info[4]->par;
if (cmfbi->count > 0) /* AOI1 is open */
wr_reg_wa(&hw->desc[2], cmfbi->ad->paddr);
@@ -601,7 +605,7 @@ static int fsl_diu_disable_panel(struct fb_info *info)
wr_reg_wa(&hw->desc[2], machine_data->dummy_ad->paddr);
/* close AOI 0 */
break;
- case 2: /* plane 1 AOI 1 */
+ case PLANE1_AOI1:
pmfbi = machine_data->fsl_diu_info[1]->par;
if (hw->desc[1] != ad->paddr) {
/* AOI1 is not the first in the chain */
@@ -612,7 +616,7 @@ static int fsl_diu_disable_panel(struct fb_info *info)
wr_reg_wa(&hw->desc[1], machine_data->dummy_ad->paddr);
/* close AOI 1 */
break;
- case 4: /* plane 2 AOI 1 */
+ case PLANE2_AOI1:
pmfbi = machine_data->fsl_diu_info[3]->par;
if (hw->desc[2] != ad->paddr) {
/* AOI1 is not the first in the chain */
@@ -623,12 +627,7 @@ static int fsl_diu_disable_panel(struct fb_info *info)
wr_reg_wa(&hw->desc[2], machine_data->dummy_ad->paddr);
/* close AOI 1 */
break;
- default:
- res = -EINVAL;
- break;
}
-
- return res;
}
static void enable_lcdc(struct fb_info *info)
@@ -660,7 +659,8 @@ static void adjust_aoi_size_position(struct fb_var_screeninfo *var,
{
struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par;
struct fsl_diu_data *machine_data = mfbi->parent;
- int available_height, upper_aoi_bottom, index = mfbi->index;
+ int available_height, upper_aoi_bottom;
+ enum mfb_index index = mfbi->index;
int lower_aoi_is_open, upper_aoi_is_open;
__u32 base_plane_width, base_plane_height, upper_aoi_height;
@@ -672,14 +672,14 @@ static void adjust_aoi_size_position(struct fb_var_screeninfo *var,
if (mfbi->y_aoi_d < 0)
mfbi->y_aoi_d = 0;
switch (index) {
- case 0:
+ case PLANE0:
if (mfbi->x_aoi_d != 0)
mfbi->x_aoi_d = 0;
if (mfbi->y_aoi_d != 0)
mfbi->y_aoi_d = 0;
break;
- case 1: /* AOI 0 */
- case 3:
+ case PLANE1_AOI0:
+ case PLANE2_AOI0:
lower_aoi_mfbi = machine_data->fsl_diu_info[index+1]->par;
lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0;
if (var->xres > base_plane_width)
@@ -696,8 +696,8 @@ static void adjust_aoi_size_position(struct fb_var_screeninfo *var,
if ((mfbi->y_aoi_d + var->yres) > available_height)
mfbi->y_aoi_d = available_height - var->yres;
break;
- case 2: /* AOI 1 */
- case 4:
+ case PLANE1_AOI1:
+ case PLANE2_AOI1:
upper_aoi_mfbi = machine_data->fsl_diu_info[index-1]->par;
upper_aoi_height =
machine_data->fsl_diu_info[index-1]->var.yres;
@@ -1002,7 +1002,7 @@ static int fsl_diu_set_par(struct fb_info *info)
ad->ckmin_g = 255;
ad->ckmin_b = 255;
- if (mfbi->index == 0)
+ if (mfbi->index == PLANE0)
update_lcdc(info);
return 0;
}
@@ -1195,7 +1195,7 @@ static int fsl_diu_open(struct fb_info *info, int user)
int res = 0;
/* free boot splash memory on first /dev/fb0 open */
- if (!mfbi->index && diu_ops.release_bootmem)
+ if ((mfbi->index == PLANE0) && diu_ops.release_bootmem)
diu_ops.release_bootmem();
spin_lock(&diu_lock);
@@ -1225,11 +1225,9 @@ static int fsl_diu_release(struct fb_info *info, int user)
spin_lock(&diu_lock);
mfbi->count--;
- if (mfbi->count == 0) {
- res = fsl_diu_disable_panel(info);
- if (res < 0)
- mfbi->count++;
- }
+ if (mfbi->count == 0)
+ fsl_diu_disable_panel(info);
+
spin_unlock(&diu_lock);
return res;
}
@@ -1275,7 +1273,7 @@ static int __devinit install_fb(struct fb_info *info)
if (init_fbinfo(info))
return -EINVAL;
- if (mfbi->index == 0) { /* plane 0 */
+ if (mfbi->index == PLANE0) {
if (mfbi->edid_data) {
/* Now build modedb from EDID */
fb_edid_to_monspecs(mfbi->edid_data, &info->monspecs);
@@ -1296,7 +1294,7 @@ static int __devinit install_fb(struct fb_info *info)
* For plane 0 we continue and look into
* driver's internal modedb.
*/
- if (mfbi->index == 0 && mfbi->edid_data)
+ if ((mfbi->index == PLANE0) && mfbi->edid_data)
has_default_mode = 0;
else
return -EINVAL;
@@ -1360,7 +1358,7 @@ static void uninstall_fb(struct fb_info *info)
if (!mfbi->registered)
return;
- if (mfbi->index == 0)
+ if (mfbi->index == PLANE0)
kfree(mfbi->edid_data);
unregister_framebuffer(info);
@@ -1565,7 +1563,7 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info));
mfbi->parent = machine_data;
- if (mfbi->index == 0) {
+ if (mfbi->index == PLANE0) {
const u8 *prop;
int len;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-19 21:27:32 +0000