From: Sumit Semwal Date: Wed, 2 Sep 2020 06:44:07 +0000 (+0530) Subject: drm: panel: Add novatek nt36672a panel driver X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=070c7fa58bce986eb7a504390dd429edcb068f44;p=linux.git drm: panel: Add novatek nt36672a panel driver Novatek NT36672a is a generic DSI IC that drives command and video mode panels. Add the driver for it. Right now adding support for some Poco F1 phones that have an LCD panel from Tianma connected with this IC, with a resolution of 1080x2246 that operates in DSI video mode. During testing, Benni Steini helped us fix the reset sequence timing (from 10ms to 20ms), to get the bootanimation to work on Android. With current AOSP, we need to increase it to 200ms - this seems to be a safe high value to avoid a white screen occasionally. Signed-off-by: Sumit Semwal Cc: Benni Steini Reviewed-by: Bjorn Andersson Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200902064407.30712-3-sumit.semwal@linaro.org --- diff --git a/MAINTAINERS b/MAINTAINERS index 399b44bd35e60..e11425948ceda 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5542,6 +5542,13 @@ T: git git://anongit.freedesktop.org/drm/drm-misc F: Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml F: drivers/gpu/drm/panel/panel-novatek-nt35510.c +DRM DRIVER FOR NOVATEK NT36672A PANELS +M: Sumit Semwal +S: Maintained +T: git git://anongit.freedesktop.org/drm/drm-misc +F: Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml +F: drivers/gpu/drm/panel/panel-novatek-nt36672a.c + DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS M: Ben Skeggs L: dri-devel@lists.freedesktop.org diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index b9dbedf8f15e8..1bf6c4d62c92a 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -208,6 +208,16 @@ config DRM_PANEL_NOVATEK_NT35510 around the Novatek NT35510 display controller, such as some Hydis panels. +config DRM_PANEL_NOVATEK_NT36672A + tristate "Novatek NT36672A DSI panel" + 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 panels built + around the Novatek NT36672A display controller, such as some + Tianma panels used in a few Xiaomi Poco F1 mobile phones. + config DRM_PANEL_NOVATEK_NT39016 tristate "Novatek NT39016 RGB/SPI panel" depends on OF && SPI diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 2ba560bca61d7..2509e0bd6a574 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o obj-$(CONFIG_DRM_PANEL_NEC_NL8048HL11) += panel-nec-nl8048hl11.o obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35510) += panel-novatek-nt35510.o +obj-$(CONFIG_DRM_PANEL_NOVATEK_NT36672A) += panel-novatek-nt36672a.o obj-$(CONFIG_DRM_PANEL_NOVATEK_NT39016) += panel-novatek-nt39016.o obj-$(CONFIG_DRM_PANEL_MANTIX_MLAF057WE51) += panel-mantix-mlaf057we51.o obj-$(CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO) += panel-olimex-lcd-olinuxino.o diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36672a.c b/drivers/gpu/drm/panel/panel-novatek-nt36672a.c new file mode 100644 index 0000000000000..533cd3934b8b7 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-novatek-nt36672a.c @@ -0,0 +1,711 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2020 Linaro Ltd + * Author: Sumit Semwal + * + * This driver is for the DSI interface to panels using the NT36672A display driver IC + * from Novatek. + * Currently supported are the Tianma FHD+ panels found in some Xiaomi phones, including + * some variants of the Poco F1 phone. + * + * Panels using the Novatek NT37762A IC should add appropriate configuration per-panel and + * use this driver. + */ + +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include + +#include