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From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Lee Shawn C <shawn.c.lee@intel.com>
Cc: Cooper Chiou <cooper.chiou@intel.com>,
	intel-gfx@lists.freedesktop.org,
	William Tseng <william.tseng@intel.com>
Subject: Re: [Intel-gfx] [PATCH v4] drm/i915/vbt: update DP max link rate table
Date: Sat, 20 Feb 2021 12:23:26 +0200	[thread overview]
Message-ID: <YDDjHgrUpEyZbw+j@intel.com> (raw)
In-Reply-To: <20210218052333.16109-1-shawn.c.lee@intel.com>

On Thu, Feb 18, 2021 at 01:23:33PM +0800, Lee Shawn C wrote:
> According to Bspec #20124, max link rate table for DP was updated
> at BDB version 230. Max link rate can support upto UHBR.
> 
> After migrate to BDB v230, the definition for LBR, HBR2 and HBR3
> were changed. For backward compatibility. If BDB version was
> from 216 to 229. Driver have to follow original rule to configure
> DP max link rate value from VBT.
> 
> v2: split the mapping table to two for old and new BDB definition.
> v3: return link rate instead of assigning it.
> v4: remove the useless variable.
> 
> Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
> Cc: Imre Deak <imre.deak@intel.com>
> Cc: Jani Nikula <jani.nikula@linux.intel.com>
> Cc: Cooper Chiou <cooper.chiou@intel.com>
> Cc: William Tseng <william.tseng@intel.com>
> Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com>
> ---
<snip>
> @@ -445,8 +456,8 @@ struct child_device_config {
>  	u16 dp_gpio_pin_num;					/* 195 */
>  	u8 dp_iboost_level:4;					/* 196 */
>  	u8 hdmi_iboost_level:4;					/* 196 */
> -	u8 dp_max_link_rate:2;					/* 216 CNL+ */
> -	u8 dp_max_link_rate_reserved:6;				/* 216 */
> +	u8 dp_max_link_rate:3;					/* 230 CNL+ */
> +	u8 dp_max_link_rate_reserved:5;				/* 230 */

I tweaked the comments here to say "216/230" to retain some hint
that version 216 already added some of this.

And now pushed. Thanks.

>  } __packed;
>  
>  struct bdb_general_definitions {
> -- 
> 2.17.1

-- 
Ville Syrjälä
Intel
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  reply	other threads:[~2021-02-20 10:23 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-01 15:02 [Intel-gfx] [PATCH] drm/i915/vbt: update DP max link rate table Lee Shawn C
2021-02-01 18:31 ` [Intel-gfx] ✓ Fi.CI.BAT: success for " Patchwork
2021-02-01 23:51 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2021-02-05 20:26 ` [Intel-gfx] [PATCH] " Ville Syrjälä
2021-02-08 13:31   ` Lee, Shawn C
2021-02-10 16:51     ` Ville Syrjälä
2021-02-11  5:22       ` Lee, Shawn C
2021-02-12 16:31         ` Ville Syrjälä
2021-02-17  6:55 ` [Intel-gfx] [PATCH v2] " Lee Shawn C
2021-02-17 13:22   ` Ville Syrjälä
2021-02-17 15:38     ` Lee, Shawn C
2021-02-17  8:07 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/vbt: update DP max link rate table (rev2) Patchwork
2021-02-17  9:33 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2021-02-17 15:39 ` [Intel-gfx] [PATCH v3] drm/i915/vbt: update DP max link rate table Lee Shawn C
2021-02-17 15:45   ` Ville Syrjälä
2021-02-18 12:01     ` Lee, Shawn C
2021-02-17 15:40 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/vbt: update DP max link rate table (rev3) Patchwork
2021-02-17 16:10 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-02-17 18:46 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2021-02-18  5:23 ` [Intel-gfx] [PATCH v4] drm/i915/vbt: update DP max link rate table Lee Shawn C
2021-02-20 10:23   ` Ville Syrjälä [this message]
2021-02-18  6:40 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/vbt: update DP max link rate table (rev4) Patchwork
2021-02-18  7:09 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-02-18  9:21 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2021-02-18 11:29 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/vbt: update DP max link rate table (rev6) Patchwork
2021-02-18 11:59 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-02-18 13:44 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork

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