Hi Sergei,

Thanks for reviewing the patch.

On Wed, Aug 08, 2012 at 21:44:55, Sergei Shtylyov wrote:
> Hello.
> 
> On 08-08-2012 19:35, Manjunathappa, Prakash wrote:
> 
> > LCD controller on am335x supports 24bpp raster configuration in addition
> > to ones on da850. LCDC also supports 24bpp in unpacked format having
> > ARGB:8888 32bpp format data in DDR, but it doesn't interpret alpha
> > component of the data.
> 
> > Signed-off-by: Manjunathappa, Prakash <[email protected]>
> > Cc: Anatolij Gustschin <[email protected]>
> [...]
> 
> > diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
> > index 7ae9d53..1abcfa9 100644
> > --- a/drivers/video/da8xx-fb.c
> > +++ b/drivers/video/da8xx-fb.c
> [...]
> > @@ -499,6 +501,9 @@ static int lcd_cfg_frame_buffer(struct da8xx_fb_par 
> > *par, u32 width, u32 height,
> >   {
> >     u32 reg;
> >
> > +   if ((bpp > 16) && (lcd_revision == LCD_VERSION_1))
> 
>     Parens around operands of && not necessary.
> 

I agree it is not necessary, isn't it more readable?

> > @@ -542,6 +547,12 @@ static int lcd_cfg_frame_buffer(struct da8xx_fb_par 
> > *par, u32 width, u32 height,
> >     reg = lcdc_read(LCD_RASTER_CTRL_REG) & ~(1 << 8);
> >     if (raster_order)
> >             reg |= LCD_RASTER_ORDER;
> > +
> > +   if (bpp == 24)
> > +           reg |= LCD_V2_TFT_24BPP_MODE;
> > +   else if (bpp == 32)
> > +           reg |= (LCD_V2_TFT_24BPP_MODE | LCD_V2_TFT_24BPP_UNPACK);
> > +
> 
>     This asks to be a *switch* statement.
> 

I will move it to *switch* statement below.

> >     lcdc_write(reg, LCD_RASTER_CTRL_REG);
> >
> >     switch (bpp) {
> > @@ -549,6 +560,8 @@ static int lcd_cfg_frame_buffer(struct da8xx_fb_par 
> > *par, u32 width, u32 height,
> >     case 2:
> >     case 4:
> >     case 16:
> > +   case 24:
> > +   case 32:
> >             par->palette_sz = 16 * 2;
> >             break;
> >
> > @@ -578,13 +591,36 @@ static int fb_setcolreg(unsigned regno, unsigned red, 
> > unsigned green,
> >     if (info->fix.visual == FB_VISUAL_DIRECTCOLOR)
> >             return 1;
> >
> > -   if (info->var.bits_per_pixel == 4) {
> > -           if (regno > 15)
> > -                   return 1;
> > +   if ((info->var.bits_per_pixel > 16) && (lcd_revision == LCD_VERSION_1))
> 
>     Parens around operands of && not necessary.
> 

Same as above, can I retain it for purpose of readability?

> > +   switch (info->fix.visual) {
> > +   case FB_VISUAL_TRUECOLOR:
> > +           red = CNVT_TOHW(red, info->var.red.length);
> > +           green = CNVT_TOHW(green, info->var.green.length);
> > +           blue = CNVT_TOHW(blue, info->var.blue.length);
> > +           break;
> > +   case FB_VISUAL_PSEUDOCOLOR:
> > +           if (info->var.bits_per_pixel == 4) {
> > +                   if (regno > 15)
> > +                           return -EINVAL;
> > +
> > +                   if (info->var.grayscale) {
> > +                           pal = regno;
> > +                   } else {
> > +                           red >>= 4;
> > +                           green >>= 8;
> > +                           blue >>= 12;
> > +
> > +                           pal = (red & 0x0f00);
> > +                           pal |= (green & 0x00f0);
> > +                           pal |= (blue & 0x000f);
> 
>     Parens not needed.
> 

Will remove parens around.

> > +                   }
> > +                   if (regno == 0)
> > +                           pal |= 0x2000;
> > +                   palette[regno] = pal;
> > +
> > +           } else if (info->var.bits_per_pixel == 8) {
> 
>     This asks to be a *switch* statement.
> 

Agreed, I will replace with *switch* statement.

Thanks,
Prakash

> > @@ -842,6 +877,9 @@ static int fb_check_var(struct fb_var_screeninfo *var,
> >   {
> >     int err = 0;
[...] 

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