| Message ID | 1310963333-29806-1-git-send-email-prakash.pm@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Paul, Could you please accept this patch as there are no comments? Thanks, Prakash On Mon, Jul 18, 2011 at 09:58:53, Manjunathappa, Prakash wrote: > Revised LCD controller in upcoming TI SoC which is an updated version of > LCDC IP that was found on TI's DA850 SoC supports 2048*2048 resolution. > Below are the encoding details: > Width: > Pixels Per Line = {pplmsb, ppllsb, 4'b1111} + 1 > Where pplmsb:1bit==>Raster Timing0[3], ppllsb:6bits==>Raster Timing0[9:4]. > And encoded value can range from 16 to 2048 in multiples of 16. > > Height: > Lines Per Panel = {lpp_b10, lpp} > Where lpp:10bits==>Raster Timing1[9:0], lpp_b10:1bit==>Raster Timing2[26]. > And encoded value can range from 1 to 2048, programmable range is 0 to > 2047. > > Patch is verified on emulation platform of upcoming SoC for updated > feature and on DA850 platform to make sure nothing existing breaks. > > Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com> > --- > Since v2: > Corrected comment describing horizontal resolution bits and removed unnecessary > outer parenthesis. > Since v1: > 1)Fixed the bug in configuration of lpp_b10 in Raster Timing2[26] register. > 2)Reframed commit message. > > drivers/video/da8xx-fb.c | 31 ++++++++++++++++++++++++++++--- > 1 files changed, 28 insertions(+), 3 deletions(-) > > diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c > index 620f1c3..94b611a 100644 > --- a/drivers/video/da8xx-fb.c > +++ b/drivers/video/da8xx-fb.c > @@ -460,18 +460,43 @@ static int lcd_cfg_frame_buffer(struct da8xx_fb_par *par, u32 width, u32 height, > > /* Set the Panel Width */ > /* Pixels per line = (PPL + 1)*16 */ > - /*0x3F in bits 4..9 gives max horisontal resolution = 1024 pixels*/ > - width &= 0x3f0; > + if (lcd_revision == LCD_VERSION_1) { > + /* > + * 0x3F in bits 4..9 gives max horizontal resolution = 1024 > + * pixels. > + */ > + width &= 0x3f0; > + } else { > + /* > + * 0x7F in bits 4..10 gives max horizontal resolution = 2048 > + * pixels. > + */ > + width &= 0x7f0; > + } > + > reg = lcdc_read(LCD_RASTER_TIMING_0_REG); > reg &= 0xfffffc00; > - reg |= ((width >> 4) - 1) << 4; > + if (lcd_revision == LCD_VERSION_1) { > + reg |= ((width >> 4) - 1) << 4; > + } else { > + width = (width >> 4) - 1; > + reg |= ((width & 0x3f) << 4) | ((width & 0x40) >> 3); > + } > lcdc_write(reg, LCD_RASTER_TIMING_0_REG); > > /* Set the Panel Height */ > + /* Set bits 9:0 of Lines Per Pixel */ > reg = lcdc_read(LCD_RASTER_TIMING_1_REG); > reg = ((height - 1) & 0x3ff) | (reg & 0xfffffc00); > lcdc_write(reg, LCD_RASTER_TIMING_1_REG); > > + /* Set bit 10 of Lines Per Pixel */ > + if (lcd_revision == LCD_VERSION_2) { > + reg = lcdc_read(LCD_RASTER_TIMING_2_REG); > + reg |= ((height - 1) & 0x400) << 16; > + lcdc_write(reg, LCD_RASTER_TIMING_2_REG); > + } > + > /* Set the Raster Order of the Frame Buffer */ > reg = lcdc_read(LCD_RASTER_CTRL_REG) & ~(1 << 8); > if (raster_order) > -- > 1.7.1 > > -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c index 620f1c3..94b611a 100644 --- a/drivers/video/da8xx-fb.c +++ b/drivers/video/da8xx-fb.c @@ -460,18 +460,43 @@ static int lcd_cfg_frame_buffer(struct da8xx_fb_par *par, u32 width, u32 height, /* Set the Panel Width */ /* Pixels per line = (PPL + 1)*16 */ - /*0x3F in bits 4..9 gives max horisontal resolution = 1024 pixels*/ - width &= 0x3f0; + if (lcd_revision == LCD_VERSION_1) { + /* + * 0x3F in bits 4..9 gives max horizontal resolution = 1024 + * pixels. + */ + width &= 0x3f0; + } else { + /* + * 0x7F in bits 4..10 gives max horizontal resolution = 2048 + * pixels. + */ + width &= 0x7f0; + } + reg = lcdc_read(LCD_RASTER_TIMING_0_REG); reg &= 0xfffffc00; - reg |= ((width >> 4) - 1) << 4; + if (lcd_revision == LCD_VERSION_1) { + reg |= ((width >> 4) - 1) << 4; + } else { + width = (width >> 4) - 1; + reg |= ((width & 0x3f) << 4) | ((width & 0x40) >> 3); + } lcdc_write(reg, LCD_RASTER_TIMING_0_REG); /* Set the Panel Height */ + /* Set bits 9:0 of Lines Per Pixel */ reg = lcdc_read(LCD_RASTER_TIMING_1_REG); reg = ((height - 1) & 0x3ff) | (reg & 0xfffffc00); lcdc_write(reg, LCD_RASTER_TIMING_1_REG); + /* Set bit 10 of Lines Per Pixel */ + if (lcd_revision == LCD_VERSION_2) { + reg = lcdc_read(LCD_RASTER_TIMING_2_REG); + reg |= ((height - 1) & 0x400) << 16; + lcdc_write(reg, LCD_RASTER_TIMING_2_REG); + } + /* Set the Raster Order of the Frame Buffer */ reg = lcdc_read(LCD_RASTER_CTRL_REG) & ~(1 << 8); if (raster_order)
Revised LCD controller in upcoming TI SoC which is an updated version of LCDC IP that was found on TI's DA850 SoC supports 2048*2048 resolution. Below are the encoding details: Width: Pixels Per Line = {pplmsb, ppllsb, 4'b1111} + 1 Where pplmsb:1bit==>Raster Timing0[3], ppllsb:6bits==>Raster Timing0[9:4]. And encoded value can range from 16 to 2048 in multiples of 16. Height: Lines Per Panel = {lpp_b10, lpp} Where lpp:10bits==>Raster Timing1[9:0], lpp_b10:1bit==>Raster Timing2[26]. And encoded value can range from 1 to 2048, programmable range is 0 to 2047. Patch is verified on emulation platform of upcoming SoC for updated feature and on DA850 platform to make sure nothing existing breaks. Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com> --- Since v2: Corrected comment describing horizontal resolution bits and removed unnecessary outer parenthesis. Since v1: 1)Fixed the bug in configuration of lpp_b10 in Raster Timing2[26] register. 2)Reframed commit message. drivers/video/da8xx-fb.c | 31 ++++++++++++++++++++++++++++--- 1 files changed, 28 insertions(+), 3 deletions(-)