From nobody Mon Feb 9 21:39:21 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7FD9D338F55 for ; Mon, 5 Jan 2026 20:25:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767644705; cv=none; b=STmWl8mSxTHpvVAEDdPYeSAqmWXiWsZNAN5vEKKknE4hNgDdkeYdDuhty9LdIkwwhZfTfn1lkMgL5ZiVm93nY8B6M7R+UeTilUorG9C0A+7tYMR4Swl6IZZ1tiqTJQq+lvudIRONR7KJeJZCe8OAnuIOyAIXPBGXcgaC9jroNMo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767644705; c=relaxed/simple; bh=zfQVRzbGancd/dU4asYi2E0hnd0cNIecEX20zJbsHaI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=jK1gNtnrTFYT9JoQGGdQxYFMHLZ08eEwSNtNRJfu/Z9InTtq9M6jiZdtZC+4ZCWev0SbH44tJI6zgKUaWYKlgpuirGFtl/xjZ6RhPawK5+wtv7pKeFaMjy9n5MWdWjczAYsVdl2Vnj9hRYdzG0lHQ/BZWDpJVXxPqZQyZyWIRCU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Cd7+QTX5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Cd7+QTX5" Received: by smtp.kernel.org (Postfix) with ESMTPS id 27585C19425; Mon, 5 Jan 2026 20:25:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767644705; bh=zfQVRzbGancd/dU4asYi2E0hnd0cNIecEX20zJbsHaI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Cd7+QTX5HS2bgbreSDFhCjffph//+3khnw8V2q9r/WA7O6YOiATbIQ+UCMe0BwStR MjDLTOWhH79l8fbARyBN+3v7OZfbBGQiZsXdva9/3ogx8EMOJzwlZbo6pgvuhk2PAc 1Pgb62MD0ZZ0WSP6dsTHusAcjpZh2+x31uyvwYwpOqVSaGEkU0OivDlD8/eYdmnI5c c/kafyJftMabKiEVceYkbE0xM/OjXpz+xGuKmbWdzwyZusbC8nTVLJJTNLghlt4CrS yxQntUkS4+tKxXStMdzsmsmY1rlVOWpwNA+Pv4lQGf4gAw2pTtPGtdB0ixwp7Q0I7K Qmsr6ciRjrZaQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C018C98331; Mon, 5 Jan 2026 20:25:05 +0000 (UTC) From: Sebastian Krzyszkowiak via B4 Relay Date: Mon, 05 Jan 2026 21:24:42 +0100 Subject: [PATCH 3/5] drm/panel: mantix: Improve power off sequence 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: quoted-printable Message-Id: <20260105-mantix-halo-fixes-v1-3-1ebc9b195a34@puri.sm> References: <20260105-mantix-halo-fixes-v1-0-1ebc9b195a34@puri.sm> In-Reply-To: <20260105-mantix-halo-fixes-v1-0-1ebc9b195a34@puri.sm> To: =?utf-8?q?Guido_G=C3=BCnther?= , Purism Kernel Team , Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Sebastian Krzyszkowiak X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1555; i=sebastian.krzyszkowiak@puri.sm; h=from:subject:message-id; bh=Dh/WLymhJdMwIFAEyjNt9y6Y69wAsTgzXgbPUFyjE2I=; b=owEBbQKS/ZANAwAKAejyNc8728P/AcsmYgBpXB4f8uRY1ZjG9N97EnweMqwiHxMBjoTGniYKv bWVUu38hIOJAjMEAAEKAB0WIQQi3Z+uAGoRQ1g2YXzo8jXPO9vD/wUCaVweHwAKCRDo8jXPO9vD /0PbD/wOg8dkELC2fI87ZLxwvGJT7X3J685RUQ9xUTJWewx1+EgONaLuHKqdy2ccAdSNKGE36Hg uSTEkZDkCKhq6eDB2w6pP/w6sMq/CZl1+2HnpKfewgER/LaLIQNvIe0t7bWDocBY8wp/j0xeMcj kFubhYNrbzw2fBTLDZ/rxfVIxsKYvoLgLmTUvF0iOWhLE54cXYsUw/773J64ou+/dVb3Udtv+3t D0AOUfB5RpoLZQQXNeiYLknTQ/Jw+sIWcJBKIiY8qzi+eOVTEfMfYCv8efVnUNVkmYQ69yeuIU2 rzoete1Cq9TywCCGV3IZfTFPCN9U3A8ttmg+rmBwNvJVsL6MuqOMT5Rmjm71bneJXq9JjXq6i0+ WG3k485viogjiLrw3xfVcRQOWumzsGPIhWIG4QcGUNWBx/JsPn13PXprQD25JkqnCu9bX+Hy/0R WRlf9kZqCUhE8Nhl4bvTZCQbm0V4/n7BxBqYVGo+o9oXBbReoGUpoYugF0WL3A6MiSFOcfgNNXF OZhpoX7qv0zBlHFXmfZXmmwgbqWX6uWzxoMc1GgB8JJN0gP785JCHb7Z7w1U4iaaYVMeCfD8UyR hkmhFhky5Eex1mIMCdH7KcUGQiCz7hh2TWWjhTFaVHogaD2SouDfnDFNOLKZ6SJZC33DTZOg5pw rljEfVOKgX0DmIw== X-Developer-Key: i=sebastian.krzyszkowiak@puri.sm; a=openpgp; fpr=22DD9FAE006A11435836617CE8F235CF3BDBC3FF X-Endpoint-Received: by B4 Relay for sebastian.krzyszkowiak@puri.sm/default with auth_id=32 X-Original-From: Sebastian Krzyszkowiak Reply-To: sebastian.krzyszkowiak@puri.sm From: Sebastian Krzyszkowiak According to the sequence from section 7.3.4 of FT8006P datasheet, TP_RSTN and RESX should be asserted after disabling AVDD and AVEE and together with VDDI. Also, AVEE power down needs to happen at least 150ms after entering sleep mode. Signed-off-by: Sebastian Krzyszkowiak Reviewed-by: Neil Armstrong --- drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c b/drivers/gpu= /drm/panel/panel-mantix-mlaf057we51.c index bb5489e4d7a9..0e66ee7a727d 100644 --- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c +++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c @@ -96,6 +96,9 @@ static int mantix_disable(struct drm_panel *panel) mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); =20 + /* T10 */ + mipi_dsi_msleep(&dsi_ctx, 150); + return dsi_ctx.accum_err; } =20 @@ -103,15 +106,16 @@ static int mantix_unprepare(struct drm_panel *panel) { struct mantix *ctx =3D panel_to_mantix(panel); =20 - gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1); - usleep_range(5000, 6000); - gpiod_set_value_cansleep(ctx->reset_gpio, 1); - regulator_disable(ctx->avee); regulator_disable(ctx->avdd); /* T11 */ usleep_range(5000, 6000); regulator_disable(ctx->vddi); + + gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1); + usleep_range(5000, 6000); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + /* T14 */ msleep(50); =20 --=20 2.52.0