From: Daniel Vetter <daniel@ffwll.ch>
To: Shobhit Kumar <shobhit.kumar@intel.com>
Cc: jani.nikula@intel.com, vijayakumar.balakrishnan@intel.com,
intel-gfx@lists.freedesktop.org,
yogesh.mohan.marimuthu@intel.com
Subject: Re: [PATCH 5/7] drm/i915: Reorganize the DSI enable/disable sequence
Date: Wed, 11 Dec 2013 14:06:03 +0100 [thread overview]
Message-ID: <20131211130603.GA9804@phenom.ffwll.local> (raw)
In-Reply-To: <1386764525-10457-1-git-send-email-shobhit.kumar@intel.com>
On Wed, Dec 11, 2013 at 05:52:05PM +0530, Shobhit Kumar wrote:
> Basically ULPS handling during enable/disable has been moved to
> pre_enable and post_disable phases. PLL and panel power disable
> also has been moved to post_disable phase. The ULPS entry/exit
> sequneces as suggested by HW team is as follows -
>
> During enable time -
> set DEVICE_READY --> Clear DEVICE_READY --> set DEVICE_READY
>
> And during disable time to flush all FIFOs -
> set ENTER_SLEEP --> EXIT_SLEEP --> ENTER_SLEEP
>
> Also during disbale sequnece sub-encoder disable is moved to the end
> after port is disabled.
>
> v2: Based on comments from Ville
> - Detailed epxlaination in the commit messgae
> - Moved parameter changes out into another patch
> - Backlight enabling will be a new patch
>
> v3: Updated as per Jani's comments
> - Removed the I915_WRITE_BITS as it is not needed
> - Moved panel_reset and send_otp_cmds hooks to dsi_pre_enable
> - Moved disable_panel_power hook to dsi_post_disable
> - Replace hardcoding with AFE_LATCHOUT
>
> v4: Make intel_dsi_device_ready and intel_dsi_clear_device_ready static
>
> Signed-off-by: Yogesh Mohan Marimuthu <yogesh.mohan.marimuthu@intel.com>
> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
> Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Merged all patches from this series, thanks. btw, when resending
individual patches pls use the --in-reply-to option so that they're all
nicely grouped together with the discussion.
Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
next prev parent reply other threads:[~2013-12-11 13:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-11 12:22 [PATCH 5/7] drm/i915: Reorganize the DSI enable/disable sequence Shobhit Kumar
2013-12-11 13:06 ` Daniel Vetter [this message]
2013-12-11 14:13 ` Shobhit Kumar
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