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Message-ID: <21f4d43d-4abd-4aca-7abb-7321bcfa0f1d@foss.st.com>
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 Raphaƫl & Yannick,
Applied on drm-misc-next.
Many thanks,
Philippe :-)
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