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[211.23.39.77]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a4f4747100sm7956667a91.11.2026.10.02.01.56.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Oct 2026 01:56:58 -0700 (PDT) From: LiangCheng Wang To: devarsht@ti.com Cc: airlied@gmail.com, conor+dt@kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, kristo@kernel.org, krzk+dt@kernel.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, nm@ti.com, robh@kernel.org, simona@ffwll.ch, tzimmermann@suse.de, vigneshr@ti.com, LiangCheng Wang Subject: Re: [PATCH v2 00/14] Add DRM driver for Solomon SSD16xx e-paper display controllers Date: Fri, 2 Oct 2026 16:56:39 +0800 Message-ID: <20261002085639.109873-1-zaq14760@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260927182329.4193961-1-devarsht@ti.com> References: <20260927182329.4193961-1-devarsht@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Devarsh, Setup: Raspberry Pi 5, rpi-7.2.y with your patches 01-12/14 cherry-picked and the panel entry added locally, SPI0 CE0 at 5 and 20 MHz, DC/RST/BUSY on GPIO5/6/26, CONFIG_DRM_SSD16XX=y, drm.debug=0x02, no compositor. Bring-up is clean: it probes, the connector comes up at 800x480, and reset/BUSY and runtime PM all work. The three issues I reported on 31 July [1] are all gone - the mirroring is fixed by 11/14 [2], rotation 180 draws, and refresh_mode takes effect. All four DT rotation values work, and so do the plane properties - refresh_mode, color_mode, clear_on_init/close/disable and refresh_mode_init. SPI is fine at both 5 and 20 MHz. Tested-by: LiangCheng Wang [1] https://lore.kernel.org/all/20260731035705.3198816-1-zaq14760@gmail.com/ [2] https://lore.kernel.org/all/20260927182329.4193961-12-devarsht@ti.com/ Regards, LiangCheng