Hi,
On 17/02/2023 12:29, Konrad Dybcio wrote:
Introduce support for the BOE panel with a NT36523W touch/driver IC
found on some Lenovo Tab P11 devices. It's a 2000x1200, 24bit RGB
MIPI DSI panel with integrated DCS-controlled backlight (that expects
big-endian communication).
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
drivers/gpu/drm/panel/Kconfig | 12 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-lenovo-nt36523w-boe.c | 751 ++++++++++++++++++++++
3 files changed, 764 insertions(+)
<snip>
diff --git a/drivers/gpu/drm/panel/panel-lenovo-nt36523w-boe.c b/drivers/gpu/drm/panel/panel-lenovo-nt36523w-boe.c
new file mode 100644
index 000000000000..83478e471493
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-lenovo-nt36523w-boe.c
@@ -0,0 +1,751 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2023 Linaro Limited
+ *
+ * Generated with linux-mdss-dsi-panel-driver-generator with
+ * some manual adjustments.
+ */
<snip>
+static int nt36523w_boe_bl_update_status(struct backlight_device *bl)
+{
+ struct mipi_dsi_device *dsi = bl_get_data(bl);
+ u16 brightness = backlight_get_brightness(bl);
+ int ret;
+
+ brightness = cpu_to_be16(brightness);
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
+ if (ret < 0)
+ return ret;
It's not wrong as is, but could you switch to mipi_dsi_dcs_set_display_brightness_large() ?
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ return 0;
+}
+
+static int nt36523w_boe_bl_get_brightness(struct backlight_device *bl)
+{
+ struct mipi_dsi_device *dsi = bl_get_data(bl);
+ u16 brightness;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
And here to mipi_dsi_dcs_get_display_brightness_large() ?
+ if (ret < 0)
+ return ret;
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ brightness = be16_to_cpu(brightness);
+
+ return brightness;
+}
+
Please send a v2 with those changes and keep my reviewed-by
Thanks!
Neil
