On Sat, Aug 08, 2026 at 01:37:51PM +0530, [email protected] wrote: > From: Sunyun Yang <[email protected]> > > LT9611C(EX/UXD) is an I2C-controlled chip that Receiver signal/dual port > mipi dsi and output hdmi, differences in hardware features: > - LT9611C: supports 1-port mipi dsi to hdmi 1.4 > - LT9611EX: supports 2-port mipi dsi to hdmi 1.4 > - LT9611UXD: supports 2-port mipi dsi to hdmi 1.4/2.0 > > Signed-off-by: Sunyun Yang <[email protected]> > Co-developed-by: Mohit Dsor <[email protected]> > Signed-off-by: Mohit Dsor <[email protected]> > --- > Documentation/ABI/testing/sysfs-lontium-firmware | 10 + > drivers/gpu/drm/bridge/Kconfig | 18 + > drivers/gpu/drm/bridge/Makefile | 1 + > drivers/gpu/drm/bridge/lontium-lt9611c.c | 1283 > ++++++++++++++++++++++ > 4 files changed, 1312 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-lontium-firmware > b/Documentation/ABI/testing/sysfs-lontium-firmware > new file mode 100644 > index 000000000000..8700933ba0f0 > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-lontium-firmware > @@ -0,0 +1,10 @@ > +What: /sys/bus/i2c/drivers/<driver>/.../firmware > +Date: July 2026 > +KernelVersion: 7.3 > +Contact: Mohit Dsor <[email protected]> > +Description: > + Read: Returns the current firmware version loaded on the > + Lontium bridge chip in hex format (e.g. "0x0105"). > + > + Write: Triggers a firmware upgrade of the chip using the > + firmware file loaded via the firmware loader. > diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig > index 4a57d49b4c6d..d1597548e578 100644 > --- a/drivers/gpu/drm/bridge/Kconfig > +++ b/drivers/gpu/drm/bridge/Kconfig > @@ -177,6 +177,24 @@ config DRM_LONTIUM_LT9611 > HDMI signals > Please say Y if you have such hardware. > > +config DRM_LONTIUM_LT9611C > + tristate "Lontium LT9611C DSI/HDMI bridge" > + select SND_SOC_HDMI_CODEC if SND_SOC > + depends on OF && I2C > + select CRC8 > + select FW_LOADER > + select DRM_PANEL_BRIDGE > + select DRM_KMS_HELPER > + select DRM_MIPI_DSI > + select DRM_DISPLAY_HELPER > + select DRM_DISPLAY_HDMI_STATE_HELPER > + select REGMAP_I2C > + help > + Driver for the Lontium LT9611C(EX/UXD) DSI to HDMI bridge chip. > + It converts single or dual MIPI DSI and I2S signals to HDMI > + output. Supports HDMI 1.4 (LT9611C/EX) and HDMI 2.0 (LT9611UXD). > + Say Y if you have hardware using this chip. > + > config DRM_LONTIUM_LT9611UXC > tristate "Lontium LT9611UXC DSI/HDMI bridge" > select SND_SOC_HDMI_CODEC if SND_SOC > diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile > index 15cc821d85b7..f322f3f89f6b 100644 > --- a/drivers/gpu/drm/bridge/Makefile > +++ b/drivers/gpu/drm/bridge/Makefile > @@ -16,6 +16,7 @@ obj-$(CONFIG_DRM_ITE_IT6505) += ite-it6505.o > obj-$(CONFIG_DRM_LONTIUM_LT8912B) += lontium-lt8912b.o > obj-$(CONFIG_DRM_LONTIUM_LT9211) += lontium-lt9211.o > obj-$(CONFIG_DRM_LONTIUM_LT9611) += lontium-lt9611.o > +obj-$(CONFIG_DRM_LONTIUM_LT9611C) += lontium-lt9611c.o > obj-$(CONFIG_DRM_LONTIUM_LT9611UXC) += lontium-lt9611uxc.o > obj-$(CONFIG_DRM_LONTIUM_LT8713SX) += lontium-lt8713sx.o > obj-$(CONFIG_DRM_LVDS_CODEC) += lvds-codec.o > diff --git a/drivers/gpu/drm/bridge/lontium-lt9611c.c > b/drivers/gpu/drm/bridge/lontium-lt9611c.c > new file mode 100644 > index 000000000000..e6887f2c89a6 > --- /dev/null > +++ b/drivers/gpu/drm/bridge/lontium-lt9611c.c > @@ -0,0 +1,1283 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright (C) 2026 Lontium Semiconductor, Inc. > + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. > + */ > + > +#include <linux/crc8.h> > +#include <linux/firmware.h> > +#include <linux/gpio/consumer.h> > +#include <linux/i2c.h> > +#include <linux/interrupt.h> > +#include <linux/media-bus-format.h> > +#include <linux/module.h> > +#include <linux/mutex.h> > +#include <linux/of_graph.h> > +#include <linux/platform_device.h> > +#include <linux/regmap.h> > +#include <linux/regulator/consumer.h> > +#include <linux/unaligned.h> > +#include <drm/drm_atomic_helper.h> > +#include <drm/drm_bridge.h> > +#include <drm/drm_connector.h> > +#include <drm/drm_drv.h> > +#include <drm/drm_edid.h> > +#include <drm/drm_mipi_dsi.h> > +#include <drm/drm_modes.h> > +#include <drm/drm_of.h> > +#include <drm/drm_print.h> > +#include <drm/drm_probe_helper.h> > +#include <drm/display/drm_hdmi_audio_helper.h> > +#include <drm/display/drm_hdmi_state_helper.h> > +#include <sound/hdmi-codec.h> > + > +#define FW_SIZE (64 * 1024) > +#define LT_PAGE_SIZE 256 > +#define FW_FILE "lt9611c_fw.bin"
Lontium/lt9611c_fw.bin With that fixed: Reviewed-by: Dmitry Baryshkov <[email protected]> -- With best wishes Dmitry
