On Fri, Jun 21, 2024 at 9:43 AM zhaoxiong lv <lvzhaoxiong@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > On Fri, Jun 21, 2024 at 3:56 AM Dmitry Baryshkov > <dmitry.baryshkov@xxxxxxxxxx> wrote: > > > > On Thu, Jun 20, 2024 at 07:52:45PM GMT, Zhaoxiong Lv wrote: > > > The bias IC of this starry-er88577 panel is placed > > > on the panel side, so when the panel is powered on, > > > there is no need to control AVDD and AVEE in the driver, > > > only 3.3v and reset are needed. > > > > > > Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> > > > --- > > > Chage since V3: > > > - 1. Adjust the ".clock" assignment format. > > > > > > v3: https://lore.kernel.org/all/20240614145609.25432-3-lvzhaoxiong@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ > > > > > > Chage since V3: > > > - Separate Starry-er88577 from the panel-kingdisplay-kd101ne3 driver. > > > - Use mipi_dsi_dcs_set_display_on_multi(). > > > - Use mipi_dsi_dcs_exit_sleep_mode_multi() and mipi_dsi_msleep(). > > > > > > v2: https://lore.kernel.org/all/20240601084528.22502-5-lvzhaoxiong@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ > > > > > > Chage since V2: > > > - Add compatible for Starry er88577 in panel-kingdisplay-kd101ne3 drivers. > > > > > > --- > > > drivers/gpu/drm/panel/Kconfig | 9 + > > > drivers/gpu/drm/panel/Makefile | 1 + > > > drivers/gpu/drm/panel/panel-starry-er88577.c | 343 +++++++++++++++++++ > > > 3 files changed, 353 insertions(+) > > > create mode 100644 drivers/gpu/drm/panel/panel-starry-er88577.c > > > > > > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > > > index e54f6f5604ed..a52aa2552ab8 100644 > > > --- a/drivers/gpu/drm/panel/Kconfig > > > +++ b/drivers/gpu/drm/panel/Kconfig > > > @@ -781,6 +781,15 @@ config DRM_PANEL_SITRONIX_ST7789V > > > Say Y here if you want to enable support for the Sitronix > > > ST7789V controller for 240x320 LCD panels > > > > > > +config DRM_PANEL_STARRY_ER88577 > > > + tristate "Starry er88577 panel" > > > + depends on OF > > > + depends on DRM_MIPI_DSI > > > + depends on BACKLIGHT_CLASS_DEVICE > > > + help > > > + Say Y if you want to enable support for panels based on the > > > + Starry er88577 controller. > > > + > > > config DRM_PANEL_SONY_ACX565AKM > > > tristate "Sony ACX565AKM panel" > > > depends on GPIOLIB && OF && SPI > > > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > > > index f0203f6e02f4..ecd843a6dc6e 100644 > > > --- a/drivers/gpu/drm/panel/Makefile > > > +++ b/drivers/gpu/drm/panel/Makefile > > > @@ -81,6 +81,7 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LS060T1SX01) += panel-sharp-ls060t1sx01.o > > > obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o > > > obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o > > > obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o > > > +obj-$(CONFIG_DRM_PANEL_STARRY_ER88577) += panel-starry-er88577.o > > > obj-$(CONFIG_DRM_PANEL_SYNAPTICS_R63353) += panel-synaptics-r63353.o > > > obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o > > > obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o > > > diff --git a/drivers/gpu/drm/panel/panel-starry-er88577.c b/drivers/gpu/drm/panel/panel-starry-er88577.c > > > new file mode 100644 > > > index 000000000000..e6088262ee69 > > > --- /dev/null > > > +++ b/drivers/gpu/drm/panel/panel-starry-er88577.c > > > @@ -0,0 +1,343 @@ > > > +// SPDX-License-Identifier: GPL-2.0 > > > +/* Panels based on the ER88577 display controller. > > > + * Author: Zhaoxiong Lv <lvzhaoxiong@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> > > > + */ > > > + > > > +#include <linux/delay.h> > > > +#include <linux/gpio/consumer.h> > > > +#include <linux/module.h> > > > +#include <linux/of.h> > > > +#include <linux/regulator/consumer.h> > > > + > > > +#include <drm/drm_connector.h> > > > +#include <drm/drm_crtc.h> > > > +#include <drm/drm_mipi_dsi.h> > > > +#include <drm/drm_panel.h> > > > + > > > +#include <video/mipi_display.h> > > > +#include <drm/drm_probe_helper.h> > > > + > > > +struct starry_panel; > > > + > > > +struct panel_desc { > > > + const struct drm_display_mode *modes; > > > + unsigned int bpc; > > > + unsigned long mode_flags; > > > + enum mipi_dsi_pixel_format format; > > > + const struct panel_init_cmd *init_cmds; > > > + int (*init)(struct starry_panel *starry); > > > + unsigned int lanes; > > > + bool discharge_on_disable; > > > + bool lp11_before_reset; > > > + unsigned int power_off_delay_ms; > > > +}; > > > + > > > +struct starry_panel { > > > + struct drm_panel base; > > > + struct mipi_dsi_device *dsi; > > > + > > > + const struct panel_desc *desc; > > > + > > > + enum drm_panel_orientation orientation; > > > + struct regulator *vccio; > > > + struct gpio_desc *reset; > > > +}; > > > + > > > +static int starry_er88577_init(struct starry_panel *starry) > > > +{ > > > + struct mipi_dsi_multi_context dsi_ctx = { .dsi = starry->dsi }; > > > + > > > + /* T5:HWreset to init_code >= 120ms */ > > > + mipi_dsi_msleep(dsi_ctx, 120); > > > + > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe0, 0xab, 0xba); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe1, 0xba, 0xab); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb1, 0x10, 0x01, 0x47, 0xff); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb2, 0x0c, 0x14, 0x04, 0x50, 0x50, 0x14); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb3, 0x56, 0x53, 0x00); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb4, 0x33, 0x30, 0x04); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb6, 0xb0, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb8, 0x05, 0x12, 0x29, 0x49, 0x40); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb9, 0x7c, 0x61, 0x4f, 0x42, 0x3e, 0x2d, 0x31, > > > + 0x1a, 0x33, 0x33, 0x33, 0x52, 0x40, 0x47, 0x38, 0x34, 0x26, > > > + 0x0e, 0x06, 0x7c, 0x61, 0x4f, 0x42, 0x3e, 0x2d, 0x31, 0x1a, > > > + 0x33, 0x33, 0x33, 0x52, 0x40, 0x47, 0x38, 0x34, 0x26, 0x0e, > > > + 0x06); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc0, 0xcc, 0x76, 0x12, 0x34, 0x44, 0x44, 0x44, > > > + 0x44, 0x98, 0x04, 0x98, 0x04, 0x0f, 0x00, 0x00, 0xc1); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1, 0x54, 0x94, 0x02, 0x85, 0x9f, 0x00, 0x6f, > > > + 0x00, 0x54, 0x00); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11, 0x22, > > > + 0x20, 0x44, 0xff, 0x18, 0x00); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3, 0x87, 0x47, 0x05, 0x05, 0x1c, 0x1c, 0x1d, > > > + 0x1d, 0x02, 0x1e, 0x1e, 0x1f, 0x1f, 0x0f, 0x0f, 0x0d, 0x0d, > > > + 0x13, 0x13, 0x11, 0x11, 0x24); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4, 0x06, 0x06, 0x04, 0x04, 0x1c, 0x1c, 0x1d, > > > + 0x1d, 0x02, 0x1e, 0x1e, 0x1f, 0x1f, 0x0e, 0x0e, 0x0c, 0x0c, > > > + 0x12, 0x12, 0x10, 0x10, 0x24); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xca, 0xcb, 0x43); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcd, 0x0e, 0x4b, 0x4b, 0x20, 0x19, 0x6b, 0x06, > > > + 0xb3); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd2, 0xe3, 0x2b, 0x38, 0x08); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4, 0x00, 0x01, 0x00, 0x0e, 0x04, 0x44, 0x08, > > > + 0x10, 0x00, 0x00, 0x00); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe6, 0x80, 0x09, 0xff, 0xff, 0xff, 0xff, 0xff, > > > + 0xff); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x12, 0x03, 0x20, 0x00, 0xff); > > > + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x00); > > > > NAK. > > > > This sequence looks _exactly_ like the sequence in > > panel-boe-th101mb31ig002-28a.c. > > > Hi Dmity > > We checked the panel-boe-th101mb31ig002-28a.c driver. The init_code is > indeed very similar, but the ICs seem to be different from the names, > and our panels and timings are also different. Do you want us to add > compatibility with Starry in this driver > panel-boe-th101mb31ig002-28a.c? > > thanks > hi dmitry.baryshkov We tried to make modifications based on the panel-boe-th101mb31ig002-28a.c driver, but we encountered some problems. For example, the panel-boe-th101mb31ig002-28a.c driver will get "enable/reset" gpio in the probe() function, but our hardware design only has "enable". This will cause an error to be returned in the devm_gpiod_get function when we use this driver and the probe() function will be interrupted. How should we modify this? Can we re-judge the return value of the devm_gpiod_get function? thanks > > > + > > > + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); > > > + > > > + mipi_dsi_msleep(dsi_ctx, 120); > > > + > > > + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); > > > + mipi_dsi_msleep(dsi_ctx, 20); > > > + > > > + return dsi_ctx.accum_err; > > > > -- > > With best wishes > > Dmitry
