提交 ef61aae4 编写于 作者: M Magnus Damm 提交者: Paul Mundt

sh: add a start_transfer() callback to the LCDC driver

This patch adds a ->start_transfer() callback to the
driver sh_mobile_lcdcfb.c. The callback is used to
program the LCDC panel in the case of one-shot mode.

Needed by the LCD controller used on the KFR2R09 board.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
上级 b25b9758
无相关合并请求
......@@ -281,6 +281,7 @@ static void sh_mobile_lcdc_deferred_io(struct fb_info *info,
struct list_head *pagelist)
{
struct sh_mobile_lcdc_chan *ch = info->par;
struct sh_mobile_lcdc_board_cfg *bcfg = &ch->cfg.board_cfg;
/* enable clocks before accessing hardware */
sh_mobile_lcdc_clk_on(ch->lcdc);
......@@ -305,10 +306,17 @@ static void sh_mobile_lcdc_deferred_io(struct fb_info *info,
/* trigger panel update */
dma_map_sg(info->dev, ch->sglist, nr_pages, DMA_TO_DEVICE);
if (bcfg->start_transfer)
bcfg->start_transfer(bcfg->board_data, ch,
&sh_mobile_lcdc_sys_bus_ops);
lcdc_write_chan(ch, LDSM2R, 1);
dma_unmap_sg(info->dev, ch->sglist, nr_pages, DMA_TO_DEVICE);
} else
} else {
if (bcfg->start_transfer)
bcfg->start_transfer(bcfg->board_data, ch,
&sh_mobile_lcdc_sys_bus_ops);
lcdc_write_chan(ch, LDSM2R, 1);
}
}
static void sh_mobile_lcdc_deferred_io_touch(struct fb_info *info)
......
......@@ -50,6 +50,8 @@ struct sh_mobile_lcdc_board_cfg {
void *board_data;
int (*setup_sys)(void *board_data, void *sys_ops_handle,
struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
void (*start_transfer)(void *board_data, void *sys_ops_handle,
struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
void (*display_on)(void *board_data);
void (*display_off)(void *board_data);
};
......
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