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bh=HRVjoV+hth91KjaaMwVMOdyx1xCYS9gkYH9pYvGBl84=; b=C+E+11lynHpWRuWcu6j4R7Fic3 uxER53X/F29NLpdx/Urc5BiUiMSXvg3+A2ulEzOpE2IPAAN/nq6nM/OeUYf8HGzZoeP1sGpeNoyni YqGocOqp6gQlvKsaAW9vTeNEh0qE1S4rX4zDzP0INoSGkqEpjA9wlVMha0f5mMhBw52evUL6qIT5M mPqUisEKN1EGMXn50vY+SLbWqJ/c9n+8+cjbArY/IiD5+2bq1OvDuLrg2e0nHQNLdQiv05Sh5P2bh bFYr8NSWpqQTJED+8tKXTikQUk65NAmXZTitfMtThXk1O8e4ciGFu86n/gFzx6bKUA1DbsAgH4/GX oaSBRz8w==; Received: from ip98-183-112-25.ok.ok.cox.net ([98.183.112.25]:39418 helo=[192.168.1.142]) by galaxy.gendns.com with essmtpa (TLS1.3) tls TLS_AES_128_GCM_SHA256 (Exim 4.99.1) (envelope-from ) id 1vrI6h-00000008W1k-1K0z; Sat, 14 Feb 2026 11:02:51 -0500 Message-ID: <3bb62aa4-d3b5-4dba-b3bf-fc1a82264274@lechnology.com> Date: Sat, 14 Feb 2026 10:02:50 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH] drm/sitronix: add ST7789V panel driver To: Archit Anant , maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de Cc: airlied@gmail.com, simona@ffwll.ch, javierm@redhat.com, nathan@kernel.org, geert+renesas@glider.be, marcus.folkesson@gmail.com, noralf@tronnes.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org References: <20260214070123.41374-1-architanant5@gmail.com> Content-Language: en-US From: David Lechner Autocrypt: addr=david@lechnology.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - galaxy.gendns.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lechnology.com X-Get-Message-Sender-Via: galaxy.gendns.com: authenticated_id: davidmain+lechnology.com/only user confirmed/virtual account not confirmed X-Authenticated-Sender: galaxy.gendns.com: davidmain@lechnology.com X-Source: X-Source-Args: X-Source-Dir: On 2/14/26 1:01 AM, Archit Anant wrote: > Add a DRM driver for Sitronix ST7789V display controllers using the > mipi_dbi interface. > > Currently, support for this controller is split between a legacy fbdev > driver in staging (fb_st7789v.c) and a DRM panel driver that requires > 9-bit SPI words (panel-sitronix-st7789v.c). This new driver uses the > mipi_dbi helper to support standard 8-bit SPI with a D/C GPIO, which > is the configuration used by the vast majority of hobbyist and > embedded hardware. > > The initialization sequence is ported from the staging driver and > supports several panels: > - Generic 240x320 profile > - HannStar HSD20 IPS > - Inanbo T28CP45TN89-V17 > - EDT ET028013DMA > - Jasonic JT240MHQS-HWT-EK-E3 > Do we actually need a custom driver for these or can we use drivers/gpu/drm/tiny/panel-mipi-dbi.c with a firmware file for init?