Add DRM panel driver for EBBG FT8719 6.18" 2246x1080 DSI video mode
panel, which can be found on some Xiaomi Poco F1 phones. The panel's
backlight is managed through QCOM WLED driver.
Signed-off-by: Joel Selvaraj
---
MAINTAINERS | 7 +
drivers/gpu/drm/panel/Kconfig | 11 +
drivers/gpu/drm/panel/Makefile| 1 +
drivers/gpu/drm/panel/panel-ebbg-ft8719.c | 362 ++
4 files changed, 381 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-ebbg-ft8719.c
diff --git a/MAINTAINERS b/MAINTAINERS
index cd0f68d4a34a..dfd2c53aea00 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6018,6 +6018,13 @@ S: Maintained
F: Documentation/devicetree/bindings/display/bridge/chipone,icn6211.yaml
F: drivers/gpu/drm/bridge/chipone-icn6211.c
+DRM DRIVER FOR EBBG FT8719 PANEL
+M: Joel Selvaraj
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
+F: drivers/gpu/drm/panel/panel-ebbg-ft8719.c
+
DRM DRIVER FOR FARADAY TVE200 TV ENCODER
M: Linus Walleij
S: Maintained
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 9989a316fe88..77176df2e2ec 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -114,6 +114,17 @@ config DRM_PANEL_EDP
that it can be automatically turned off when the panel goes into a
low power state.
+config DRM_PANEL_EBBG_FT8719
+ tristate "EBBG FT8719 panel driver"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y here if you want to enable support for the EBBG FT8719
+ video mode panel. Mainly found on Xiaomi Poco F1 mobile phone.
+ The panel has a resolution of 1080x2246. It provides a MIPI DSI
+ interface to the host.
+
config DRM_PANEL_ELIDA_KD35T133
tristate "Elida KD35T133 panel driver"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index d99fbbce49d1..47cc20c1a770 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_DRM_PANEL_DSI_CM) += panel-dsi-cm.o
obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o
obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
obj-$(CONFIG_DRM_PANEL_EDP) += panel-edp.o
+obj-$(CONFIG_DRM_PANEL_EBBG_FT8719) += panel-ebbg-ft8719.o
obj-$(CONFIG_DRM_PANEL_ELIDA_KD35T133) += panel-elida-kd35t133.o
obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o
obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) +=
panel-feiyang-fy07024di26a30d.o
diff --git a/drivers/gpu/drm/panel/panel-ebbg-ft8719.c
b/drivers/gpu/drm/panel/panel-ebbg-ft8719.c
new file mode 100644
index ..abd54c4b0c23
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-ebbg-ft8719.c
@@ -0,0 +1,362 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022 Joel Selvaraj
+ * 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
+
+static const char * const regulator_names[] = {
+ "vddio",
+ "vddpos",
+ "vddneg",
+};
+
+static const unsigned long regulator_enable_loads[] = {
+ 62000,
+ 10,
+ 10
+};
+
+struct ebbg_ft8719 {
+ struct drm_panel panel;
+ struct mipi_dsi_device *dsi;
+
+ struct regulator_bulk_data supplies[ARRAY_SIZE(regulator_names)];
+
+ struct gpio_desc *reset_gpio;
+ bool prepared;
+};
+
+static inline
+struct ebbg_ft8719 *to_ebbg_ft8719(struct drm_panel *panel)
+{
+ return container_of(panel, struct ebbg_ft8719, 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)
+
+#define dsi_dcs_write_seq(dsi, seq...) do {\
+ static const u8 d[] = { seq }; \
+ int ret;\
+ ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
+ if (ret < 0)\
+ return ret; \
+ } while (0)
+
+static void ebbg_ft8719_reset(struct ebbg_ft8719 *ctx)
+{
+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+ usleep_range(4000, 5000);
+
