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 | |
| parent | 5e47431aabf716c9ad9eacf1a966e1fc1469c809 (diff) | |
| download | linux-a2e6297153f8fc7185d119c59d8eed1ee7d4c74f.tar.gz | |
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>
| -rw-r--r-- | arch/arm/mach-shmobile/board-ag5evm.c | 5 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-ap4evb.c | 3 | ||||
| -rw-r--r-- | drivers/video/sh_mipi_dsi.c | 14 | ||||
| -rw-r--r-- | include/video/sh_mipi_dsi.h | 4 |
4 files changed, 19 insertions, 7 deletions
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c index 15072c51e035..7e3dd7326827 100644 --- a/arch/arm/mach-shmobile/board-ag5evm.c +++ b/arch/arm/mach-shmobile/board-ag5evm.c @@ -357,8 +357,9 @@ static struct sh_mipi_dsi_info mipidsi0_info = { .lane = 2, .vsynw_offset = 20, .clksrc = 1, - .flags = SH_MIPI_DSI_HSABM | - SH_MIPI_DSI_SYNC_PULSES_MODE, + .flags = SH_MIPI_DSI_HSABM | + SH_MIPI_DSI_SYNC_PULSES_MODE | + SH_MIPI_DSI_HSbyteCLK, .set_dot_clock = sh_mipi_set_dot_clock, }; diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c index 73503ed8bde2..904b608d1aa3 100644 --- a/arch/arm/mach-shmobile/board-ap4evb.c +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -606,7 +606,8 @@ static struct sh_mipi_dsi_info mipidsi0_info = { .lcd_chan = &lcdc_info.ch[0], .lane = 2, .vsynw_offset = 17, - .flags = SH_MIPI_DSI_SYNC_PULSES_MODE, + .flags = SH_MIPI_DSI_SYNC_PULSES_MODE | + SH_MIPI_DSI_HSbyteCLK, .set_dot_clock = sh_mipi_set_dot_clock, }; diff --git a/drivers/video/sh_mipi_dsi.c b/drivers/video/sh_mipi_dsi.c index 77743f4388a0..b8aea8c60bc7 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); diff --git a/include/video/sh_mipi_dsi.h b/include/video/sh_mipi_dsi.h index 310b883bb312..434d56b4a1a5 100644 --- a/include/video/sh_mipi_dsi.h +++ b/include/video/sh_mipi_dsi.h @@ -35,6 +35,10 @@ struct sh_mobile_lcdc_chan_cfg; #define SH_MIPI_DSI_HSEE (1 << 5) #define SH_MIPI_DSI_HSAE (1 << 6) +#define SH_MIPI_DSI_HSbyteCLK (1 << 24) +#define SH_MIPI_DSI_HS6divCLK (1 << 25) +#define SH_MIPI_DSI_HS4divCLK (1 << 26) + #define SH_MIPI_DSI_SYNC_PULSES_MODE (SH_MIPI_DSI_VSEE | \ SH_MIPI_DSI_HSEE | \ SH_MIPI_DSI_HSAE) |