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fbdev: sh_mipi_dsi: add lane control support

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SH MIPI DSI can use 0-4 lane

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Kuninori Morimoto
2011-11-08 20:34:43 -08:00
committed by Florian Tobias Schandinat
parent d07a9d2a5e
commit 26c3d7ac21
4 changed files with 12 additions and 1 deletions
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10
drivers/video/sh_mipi_dsi.c
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@@ -8,6 +8,7 @@
* published by the Free Software Foundation.
*/
#include <linux/bitmap.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/init.h>
@@ -153,6 +154,7 @@ static int __init sh_mipi_setup(struct sh_mipi *mipi,
struct sh_mobile_lcdc_chan_cfg *ch = pdata->lcd_chan;
u32 pctype, datatype, pixfmt, linelength, vmctr2 = 0x00e00000;
bool yuv;
u32 tmp;
/*
* Select data format. MIPI DSI is not hot-pluggable, so, we just use
@@ -253,6 +255,9 @@ static int __init sh_mipi_setup(struct sh_mipi *mipi,
(!yuv && ch->interface_type != RGB24))
return -EINVAL;
if (!pdata->lane)
return -EINVAL;
/* reset DSI link */
iowrite32(0x00000001, base + SYSCTRL);
/* Hold reset for 100 cycles of the slowest of bus, HS byte and LP clock */
@@ -269,7 +274,10 @@ static int __init sh_mipi_setup(struct sh_mipi *mipi,
* ECC check enable
* additionally enable first two lanes
*/
iowrite32(0x00003703, base + SYSCONF);
bitmap_fill((unsigned long *)&tmp, pdata->lane);
tmp |= 0x00003700;
iowrite32(tmp, base + SYSCONF);
/*
* T_wakeup = 0x7000
* T_hs-trail = 3