In message <[EMAIL PROTECTED]> you wrote:
> Hi all, 
> This patch is to enable 2D Engine in SM501 video chip to hurry up fresh 
> speed. It change some 2D Engine registers and could obviously fasten screen 
> scroll up. I think it's reasonable to do it for consumerism.

Your line is way too long.

What exactly is "fresh speed"? 

For "consumerism" ?


> commit 02e99b0a871f91fd3598024a2468a059971ef28d
> Parent: 699f05125509249072a0b865c8d35520d97cd501
> Author: Ryan Chen <[EMAIL PROTECTED]>
> Date:   Wed Jul 30 09:45:01 2008 -0400
> 
>     Signed-off-by: Ryan Chen <[EMAIL PROTECTED]>
>     
>       modified:   drivers/video/sm501.c

Please format your patches using git-format-patch and make sure to
supply a reasonable comit message.


Your patch adds a lot of code that may or may not be needed on some
systems. Please make it optional using a CONFIG_ option.


> diff --git a/drivers/video/sm501.c b/drivers/video/sm501.c
> old mode 100644
> new mode 100755

Please do not set exec permissions on plain source files.

> index 23db02c..f20cf94
> --- a/drivers/video/sm501.c
> +++ b/drivers/video/sm501.c
> @@ -35,6 +35,7 @@
>  
>  #include <video_fb.h>
>  #include <sm501.h>
> +#include <asm/io.h>

What is this needed for?

...
> +/* Program new power mode. */
> +static void setPower(unsigned long nGates, unsigned long Clock)
> +{
> +     unsigned long gate_reg, clock_reg;
> +     unsigned long control_value;
> +     u32 i;
> +
> +     /*  Get current power mode. */
> +     control_value = FIELD_GET(read32(POWER_MODE_CTRL),
> +             POWER_MODE_CTRL,
> +             MODE);
> +
> +     switch (control_value)
> +     {

Coding Style:

        switch (control_value) {

> +     switch (bpp)
> +     {

Ditto...

> +#if defined CONFIG_MULTI_VIDEO_CARD
> +void *sm501_video_hw_init (void)
> +#else
>  void *video_hw_init (void)
> +#endif

This seems to be an unrelated change that should be plit into a
separate patch.


Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [EMAIL PROTECTED]
He had quite a powerful intellect, but it  was  as  powerful  like  a
locomotive,  and  ran on rails and was therefore almost impossible to
steer.                          - Terry Pratchett, _Lords and Ladies_

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