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From: David Heidelberg via B4 Relay <devnull+david.ixit.cz@kernel.org>
To: Neil Armstrong <neil.armstrong@linaro.org>,
	 Jessica Zhang <jessica.zhang@oss.qualcomm.com>,
	 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	 Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	 David Airlie <airlied@gmail.com>,
	Simona Vetter <simona@ffwll.ch>,  Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	 Thierry Reding <thierry.reding@gmail.com>,
	Sam Ravnborg <sam@ravnborg.org>,
	 Bjorn Andersson <andersson@kernel.org>,
	 Konrad Dybcio <konradybcio@kernel.org>,
	 Casey Connolly <casey.connolly@linaro.org>
Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
	 linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	 phone-devel@vger.kernel.org, David Heidelberg <david@ixit.cz>
Subject: [PATCH v2 11/12] drm/panel: sofef00: Mark the LPM mode always-on
Date: Thu, 13 Nov 2025 18:57:45 +0100	[thread overview]
Message-ID: <20251113-sofef00-rebuild-v2-11-e175053061ec@ixit.cz> (raw)
In-Reply-To: <20251113-sofef00-rebuild-v2-0-e175053061ec@ixit.cz>

From: David Heidelberg <david@ixit.cz>

The panel operated in low-power mode, with exception of changing the
brightness levels.

Signed-off-by: David Heidelberg <david@ixit.cz>
---
 drivers/gpu/drm/panel/panel-samsung-sofef00.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-sofef00.c b/drivers/gpu/drm/panel/panel-samsung-sofef00.c
index e69a28628b656..8286cad385738 100644
--- a/drivers/gpu/drm/panel/panel-samsung-sofef00.c
+++ b/drivers/gpu/drm/panel/panel-samsung-sofef00.c
@@ -92,8 +92,6 @@ static int sofef00_panel_off(struct sofef00_panel *ctx)
 	struct mipi_dsi_device *dsi = ctx->dsi;
 	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
 
-	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
-
 	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
 	mipi_dsi_msleep(&dsi_ctx, 40);
 
@@ -180,10 +178,14 @@ static int sofef00_panel_bl_update_status(struct backlight_device *bl)
 	int err;
 	u16 brightness = (u16)backlight_get_brightness(bl);
 
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
 	err = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
 	if (err < 0)
 		return err;
 
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
 	return 0;
 }
 
@@ -234,6 +236,7 @@ static int sofef00_panel_probe(struct mipi_dsi_device *dsi)
 
 	dsi->lanes = 4;
 	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->mode_flags = MIPI_DSI_MODE_LPM;
 
 	ctx->panel.prepare_prev_first = true;
 

-- 
2.51.0



  parent reply	other threads:[~2025-11-13 17:57 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-13 17:57 [PATCH v2 00/12] Make Samsung SOFEF00 DDIC and panel work David Heidelberg via B4 Relay
2025-11-13 17:57 ` [PATCH v2 01/12] dt-bindings: panel: Convert Samsung SOFEF00 DDIC into standalone yaml David Heidelberg via B4 Relay
2025-11-14  8:13   ` Krzysztof Kozlowski
2025-11-16 13:55   ` Casey Connolly
2025-11-16 14:42     ` David Heidelberg
2025-11-16 17:46     ` David Heidelberg
2025-11-13 17:57 ` [PATCH v2 02/12] arch: arm64: qcom: sdm845-enchilada: Specify panel name within the compatible David Heidelberg via B4 Relay
2025-11-13 20:28   ` Bjorn Andersson
2025-11-13 17:57 ` [PATCH v2 03/12] drm/panel: sofef00: Clean up panel description after s6e3fc2x01 removal David Heidelberg via B4 Relay
2025-11-13 17:57 ` [PATCH v2 04/12] drm/panel: sofef00: Handle all regulators David Heidelberg via B4 Relay
2025-11-13 17:57 ` [PATCH v2 05/12] drm/panel: sofef00: Split sending commands to the enable/disable functions David Heidelberg via B4 Relay
2025-11-13 17:57 ` [PATCH v2 06/12] drm/panel: sofef00: Introduce page macro David Heidelberg via B4 Relay
2025-11-13 17:57 ` [PATCH v2 07/12] drm/panel: sofef00: Add prepare_prev_first flag to drm_panel David Heidelberg via B4 Relay
2025-11-13 17:57 ` [PATCH v2 08/12] drm/panel: sofef00: Initialise at 50% brightness David Heidelberg via B4 Relay
2025-11-13 17:57 ` [PATCH v2 09/12] drm/panel: sofef00: Introduce compatible which includes the panel name David Heidelberg via B4 Relay
2025-11-13 17:57 ` [PATCH v2 10/12] drm/panel: sofef00: Simplify get_modes David Heidelberg via B4 Relay
2025-11-13 17:57 ` David Heidelberg via B4 Relay [this message]
2025-11-13 17:57 ` [PATCH v2 12/12] drm/panel: sofef00: Non-continuous mode and video burst are supported David Heidelberg via B4 Relay

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