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fbdev: sh_mobile_lcdc: Handle HDMI/MIPI transmitter device directly 

Pass a pointer to the transmitter device through platform data, retrieve
the corresponding sh_mobile_lcdc_entity structure in the probe method
and call the transmitter display_on/off methods directly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2011-09-11 22:59:04 +02:00
parent 732bbcc46c
commit 9a2985e7f9
3 changed files with 30 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/video/sh_mobile_lcdcfb.c
View File

@ -339,6 +339,11 @@ static void sh_mobile_lcdc_display_on(struct sh_mobile_lcdc_chan *ch)
{
struct sh_mobile_lcdc_board_cfg *board_cfg = &ch->cfg.board_cfg;
if (ch->tx_dev) {
if (ch->tx_dev->ops->display_on(ch->tx_dev, ch->info) < 0)
return;
}
/* HDMI must be enabled before LCDC configuration */
if (board_cfg->display_on && try_module_get(board_cfg->owner)) {
board_cfg->display_on(board_cfg->board_data, ch->info);
@ -354,6 +359,9 @@ static void sh_mobile_lcdc_display_off(struct sh_mobile_lcdc_chan *ch)
board_cfg->display_off(board_cfg->board_data);
module_put(board_cfg->owner);
}
if (ch->tx_dev)
ch->tx_dev->ops->display_off(ch->tx_dev);
}
/* -----------------------------------------------------------------------------
@ -1490,18 +1498,21 @@ static int sh_mobile_lcdc_remove(struct platform_device *pdev)
sh_mobile_lcdc_stop(priv);
for (i = 0; i < ARRAY_SIZE(priv->ch); i++) {
info = priv->ch[i].info;
struct sh_mobile_lcdc_chan *ch = &priv->ch[i];
info = ch->info;
if (!info || !info->device)
continue;
if (priv->ch[i].sglist)
vfree(priv->ch[i].sglist);
if (ch->tx_dev)
module_put(ch->cfg.tx_dev->dev.driver->owner);
if (ch->sglist)
vfree(ch->sglist);
if (info->screen_base)
dma_free_coherent(&pdev->dev, info->fix.smem_len,
info->screen_base,
priv->ch[i].dma_handle);
info->screen_base, ch->dma_handle);
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
@ -1595,6 +1606,16 @@ sh_mobile_lcdc_channel_init(struct sh_mobile_lcdc_priv *priv,
info->pseudo_palette = &ch->pseudo_palette;
info->flags = FBINFO_FLAG_DEFAULT;
if (cfg->tx_dev) {
if (!cfg->tx_dev->dev.driver ||
!try_module_get(cfg->tx_dev->dev.driver->owner)) {
dev_warn(priv->dev,
"unable to get transmitter device\n");
return -EINVAL;
}
ch->tx_dev = platform_get_drvdata(cfg->tx_dev);
}
/* Iterate through the modes to validate them and find the highest
* resolution.
*/

2
drivers/video/sh_mobile_lcdcfb.h
View File

@ -41,6 +41,8 @@ struct sh_mobile_lcdc_entity {
*/
struct sh_mobile_lcdc_chan {
struct sh_mobile_lcdc_priv *lcdc;
struct sh_mobile_lcdc_entity *tx_dev;
unsigned long *reg_offs;
unsigned long ldmt1r_value;
unsigned long enabled; /* ME and SE in LDCNT2R */

2
include/video/sh_mobile_lcdc.h
View File

@ -186,6 +186,8 @@ struct sh_mobile_lcdc_chan_cfg {
struct sh_mobile_lcdc_bl_info bl_info;
struct sh_mobile_lcdc_sys_bus_cfg sys_bus_cfg; /* only for SYSn I/F */
struct sh_mobile_meram_cfg *meram_cfg;
struct platform_device *tx_dev; /* HDMI/DSI transmitter device */
};
struct sh_mobile_lcdc_info {