It adds a DRM panel driver for Sony Tulip Truly NT35521 5.24" 1280x720
DSI panel, which can be found on Sony Xperia M4 Aqua phone. The panel
backlight is managed through DSI link.
The driver is built using linux-mdss-dsi-panel-driver-generator[1], and
additionally modeling the 5V control GPIOs with regulators and adding
Backlight GPIO support.
[1] https://github.com/msm8916-mainline/linux-mdss-dsi-panel-driver-generator
Signed-off-by: Shawn Guo
---
drivers/gpu/drm/panel/Kconfig | 10 +
drivers/gpu/drm/panel/Makefile| 1 +
.../panel/panel-sony-tulip-truly-nt35521.c| 552 ++
3 files changed, 563 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index ef87d92cdf49..a5809eab49b2 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -502,6 +502,16 @@ config DRM_PANEL_SONY_ACX565AKM
Say Y here if you want to enable support for the Sony ACX565AKM
800x600 3.5" panel (found on the Nokia N900).
+config DRM_PANEL_SONY_TULIP_TRULY_NT35521
+ tristate "Sony Tulip Truly NT35521 panel"
+ depends on GPIOLIB && OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y here if you want to enable support for the Sony Tulip
+ NT35521 1280x720 video mode panel as found on Sony Xperia M4
+ Aqua phone.
+
config DRM_PANEL_TDO_TL070WSH30
tristate "TDO TL070WSH30 DSI panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index cae4d976c069..852ce32d58ee 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -52,6 +52,7 @@ obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) +=
panel-sitronix-st7703.o
obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
obj-$(CONFIG_DRM_PANEL_SONY_ACX424AKP) += panel-sony-acx424akp.o
obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
+obj-$(CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521) +=
panel-sony-tulip-truly-nt35521.o
obj-$(CONFIG_DRM_PANEL_TDO_TL070WSH30) += panel-tdo-tl070wsh30.o
obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
diff --git a/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
new file mode 100644
index ..eba926c6f722
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
@@ -0,0 +1,552 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021, Linaro Limited
+ *
+ * Generated with linux-mdss-dsi-panel-driver-generator from vendor device
tree:
+ * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include
+#include
+#include
+
+struct truly_nt35521 {
+ struct drm_panel panel;
+ struct mipi_dsi_device *dsi;
+ struct regulator_bulk_data supplies[2];
+ struct gpio_desc *reset_gpio;
+ struct gpio_desc *blen_gpio;
+ bool prepared;
+ bool enabled;
+};
+
+static inline
+struct truly_nt35521 *to_truly_nt35521(struct drm_panel *panel)
+{
+ return container_of(panel, struct truly_nt35521, panel);
+}
+
+#define dsi_generic_write_seq(dsi, seq...) do {
\
+ static const u8 d[] = { seq }; \
+ int ret;\
+ ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d));\
+ if (ret < 0)\
+ return ret; \
+ } while (0)
+
+static void truly_nt35521_reset(struct truly_nt35521 *ctx)
+{
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ usleep_range(1000, 2000);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ usleep_range(1, 11000);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+ msleep(150);
+}
+
+static int truly_nt35521_on(struct truly_nt35521 *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = >dev;
+ int ret;
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ dsi_generic_write_seq(dsi, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x00);
+ dsi_generic_write_seq(dsi, 0xff, 0xaa, 0x55, 0xa5, 0x80);
+ dsi_generic_write_seq(dsi, 0x6f, 0x11, 0x00);
+ dsi_generic_write_seq(dsi, 0xf7, 0x20, 0x00);
+ dsi_generic_write_seq(dsi, 0x6f, 0x01);
+ dsi_generic_write_seq(dsi, 0xb1, 0x21);
+ dsi_generic_write_seq(dsi, 0xbd, 0x01, 0xa0, 0x10, 0x08, 0x01);
+ dsi_generic_write_seq(dsi, 0xb8, 0x01, 0x02, 0x0c, 0x02);
+ dsi_generic_write_seq(dsi, 0xbb, 0x11, 0x11);
+ dsi_generic_write_seq(dsi, 0xbc, 0x00,
