diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-11-08 20:35:27 -0800 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-11-21 23:43:22 +0000 |
| commit | a2e6297153f8fc7185d119c59d8eed1ee7d4c74f (patch) | |
| tree | 8f1cff478291576509c5c057ea8e8ea665f92213 /drivers/video/sh_mipi_dsi.c | |
| parent | 5e47431aabf716c9ad9eacf1a966e1fc1469c809 (diff) | |
fbdev: sh_mipi_dsi: add HSxxCLK support
SH MIPI manual explains the calculation method of HBP/HFP.
it is based on HSbyteCLK settings.
SH73a0 chip can use HS6divCLK/HS4divCLK for it.
This patch has compatibility to SH7372 mipi
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>
Diffstat (limited to 'drivers/video/sh_mipi_dsi.c')
| -rw-r--r-- | drivers/video/sh_mipi_dsi.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/video/sh_mipi_dsi.c b/drivers/video/sh_mipi_dsi.c index 77743f4388a..b8aea8c60bc 100644 --- a/drivers/video/sh_mipi_dsi.c +++ b/drivers/video/sh_mipi_dsi.c @@ -153,7 +153,7 @@ static int __init sh_mipi_setup(struct sh_mipi *mipi, void __iomem *base = mipi->base; struct sh_mobile_lcdc_chan_cfg *ch = pdata->lcd_chan; u32 pctype, datatype, pixfmt, linelength, vmctr2; - u32 tmp, top, bottom, delay; + u32 tmp, top, bottom, delay, div; bool yuv; int bpp; @@ -364,17 +364,23 @@ static int __init sh_mipi_setup(struct sh_mipi *mipi, bottom = 0x00000001; delay = 0; + div = 1; /* HSbyteCLK is calculation base + * HS4divCLK = HSbyteCLK/2 + * HS6divCLK is not supported for now */ + if (pdata->flags & SH_MIPI_DSI_HS4divCLK) + div = 2; + if (pdata->flags & SH_MIPI_DSI_HFPBM) { /* HBPLEN */ top = ch->lcd_cfg[0].hsync_len + ch->lcd_cfg[0].left_margin; - top = ((pdata->lane * top) - 10) << 16; + top = ((pdata->lane * top / div) - 10) << 16; } if (pdata->flags & SH_MIPI_DSI_HBPBM) { /* HFPLEN */ bottom = ch->lcd_cfg[0].right_margin; - bottom = (pdata->lane * bottom) - 12; + bottom = (pdata->lane * bottom / div) - 12; } bpp = linelength / ch->lcd_cfg[0].xres; /* byte / pixel */ - if (pdata->lane > bpp) { + if ((pdata->lane / div) > bpp) { tmp = ch->lcd_cfg[0].xres / bpp; /* output cycle */ tmp = ch->lcd_cfg[0].xres - tmp; /* (input - output) cycle */ delay = (pdata->lane * tmp); |