On Thursday, July 19, 2012 1:49 AM, o...@aepfle.de wrote:
> From: Tony Breeds <t...@bakeyournoodle.com>
>
> These devices are set to 640x480 by firmware, switch them to 800x600@60
> so that the graphical installer can run on remote console.
>
> Reported by IBM during SLES10 SP2 beta testing:
>
> https://bugzilla.novell.com/show_bug.cgi?id=461002
> LTC50817
>
> Signed-off-by: Olaf Hering <o...@aepfle.de>
If the author is Tony Breeds, please add 'Signed-off-by: Tony Breeds
<t...@bakeyournoodle.com>'.
Best regards,
Jingoo Han
>
> diff --git a/drivers/video/aty/radeon_monitor.c
> b/drivers/video/aty/radeon_monitor.c
> index 9261c91..5c23eac 100644
> --- a/drivers/video/aty/radeon_monitor.c
> +++ b/drivers/video/aty/radeon_monitor.c
> @@ -730,6 +730,25 @@ static void radeon_videomode_to_var(struct
> fb_var_screeninfo *var,
> var->vmode = mode->vmode;
> }
>
> +#ifdef CONFIG_PPC_PSERIES
> +static int is_powerblade(const char *model)
> +{
> + struct device_node *root;
> + const char* cp;
> + int len, l, rc = 0;
> +
> + root = of_find_node_by_path("/");
> + if (root && model) {
> + l = strlen(model);
> + cp = of_get_property(root, "model", &len);
> + if (cp)
> + rc = memcmp(model, cp, min(len, l)) == 0;
> + of_node_put(root);
> + }
> + return rc;
> +}
> +#endif
> +
> /*
> * Build the modedb for head 1 (head 2 will come later), check panel infos
> * from either BIOS or EDID, and pick up the default mode
> @@ -865,6 +884,22 @@ void __devinit radeon_check_modes(struct radeonfb_info
> *rinfo, const char *mode_
> has_default_mode = 1;
> }
>
> +#ifdef CONFIG_PPC_PSERIES
> + if (!has_default_mode && (
> + is_powerblade("IBM,8842") || /* JS20 */
> + is_powerblade("IBM,8844") || /* JS21 */
> + is_powerblade("IBM,7998") || /* JS12/JS21/JS22 */
> + is_powerblade("IBM,0792") || /* QS21 */
> + is_powerblade("IBM,0793") /* QS22 */
> + )) {
> + printk("Falling back to 800x600 on JSxx hardware\n");
> + if (fb_find_mode(&info->var, info, "800x600@60",
> + info->monspecs.modedb,
> + info->monspecs.modedb_len, NULL, 8) != 0)
> + has_default_mode = 1;
> + }
> +#endif
> +
> /*
> * Still no mode, let's pick up a default from the db
> */
> --
> 1.7.10.4
>
> --
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