linux-kernel - Re: [PATCH RESEND v3 0/3] Update STM DSI PHY driver

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Date: Fri, 28 Jun 2024 14:45:44 +0200
From: Philippe CORNU <philippe.cornu@...s.st.com>
To: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>,
        Yannick Fertre
	<yannick.fertre@...s.st.com>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>
CC: <dri-devel@...ts.freedesktop.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND v3 0/3] Update STM DSI PHY driver



On 1/29/24 11:41, Raphael Gallais-Pou wrote:
> 
> This patch series aims to add several features of the dw-mipi-dsi phy
> driver that are missing or need to be updated.
> 
> First patch update a PM macro.
> 
> Second patch adds runtime PM functionality to the driver.
> 
> Third patch adds a clock provider generated by the PHY itself.  As
> explained in the commit log of the second patch, a clock declaration is
> missing.  Since this clock is parent of 'dsi_k', it leads to an orphan
> clock.  Most importantly this patch is an anticipation for future
> versions of the DSI PHY, and its inclusion within the display subsystem
> and the DRM framework.
> 
> Last patch fixes a corner effect introduced previously.  Since 'dsi' and
> 'dsi_k' are gated by the same bit on the same register, both reference
> work as peripheral clock in the device-tree.
> 
> ---
> Changes in v3-resend:
> 	- Removed last patch as it has been merged
> https://lore.kernel.org/lkml/bf49f4c9-9e81-4c91-972d-13782d996aaa@foss.st.com/
> 
> Changes in v3:
> 	- Fix smatch warning (disable dsi->pclk when clk_register fails)
> 
> Changes in v2:
> 	- Added patch 1/4 to use SYSTEM_SLEEP_PM_OPS instead of old macro
> 	  and removed __maybe_used for accordingly
> 	- Changed SET_RUNTIME_PM_OPS to RUNTIME_PM_OPS
> 
> Raphael Gallais-Pou (3):
>    drm/stm: dsi: use new SYSTEM_SLEEP_PM_OPS() macro
>    drm/stm: dsi: expose DSI PHY internal clock
> 
> Yannick Fertre (1):
>    drm/stm: dsi: add pm runtime ops
> 
>   drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 279 ++++++++++++++++++++++----
>   1 file changed, 238 insertions(+), 41 deletions(-)
> 

Hi Raphaël & Yannick,
Applied on drm-misc-next.
Many thanks,
Philippe :-)