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Commit ef61aae4 authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
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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: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent b25b9758

drivers/video/sh_mobile_lcdcfb.c

+9 −1
Original line number Diff line number Diff line
@@ -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);
@@ -305,11 +306,18 @@ 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)

{

include/video/sh_mobile_lcdc.h

+2 −0
Original line number Diff line number Diff line
@@ -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);

};