Re: [PATCH v4 2/2] gpu/drm/panel: Add Sony TD4353 JDI panel driver

From: Daniel Vetter
Date: Thu Feb 16 2023 - 07:32:41 EST


On Thu, 16 Feb 2023 at 12:59, Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:
>
>
>
> On 19.01.2023 17:32, Konrad Dybcio wrote:
> > From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
> >
> > Add support for the Sony TD4353 JDI 2160x1080 display panel used in
> > some Sony Xperia XZ2 and XZ2 Compact smartphones. Due to the specifics
> > of smartphone manufacturing, it is impossible to retrieve a better name
> > for this panel.
> >
> > This revision adds support for the default 60 Hz configuration, however
> > there could possibly be some room for expansion, as the display panels
> > used on Sony devices have historically been capable of >2x refresh rate
> > overclocking.
> >
> > Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
> > Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> > Reviewed-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
> > ---
> Are there any outstanding issues with this driver, or perhaps I did
> not CC some important list? It has gotten very little activity ever
> since its initial submission around Sept'22..

Sam is usually picking up panel drivers these days, but maybe we need
a bit more help in this area? If anyone from linaro has a handful of
drm patches landed in upstream they could apply for drm-misc commit
rights and help push these. I think linaro has lost a few of the
drm-misc committers so things tend to be stuck a bit more :-/
-Daniel

>
> Konrad
> > v3 -> v4:
> > - De-magicize some numbers
> > - Pick up rb
> > drivers/gpu/drm/panel/Kconfig | 10 +
> > drivers/gpu/drm/panel/Makefile | 1 +
> > drivers/gpu/drm/panel/panel-sony-td4353-jdi.c | 329 ++++++++++++++++++
> > 3 files changed, 340 insertions(+)
> > create mode 100644 drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
> >
> > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> > index d03a64155d15..8da741f1c2ba 100644
> > --- a/drivers/gpu/drm/panel/Kconfig
> > +++ b/drivers/gpu/drm/panel/Kconfig
> > @@ -677,6 +677,16 @@ 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_TD4353_JDI
> > + tristate "Sony TD4353 JDI 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 Tama
> > + TD4353 JDI command mode panel as found on some Sony Xperia
> > + XZ2 and XZ2 Compact smartphones.
> > +
> > config DRM_PANEL_SONY_TULIP_TRULY_NT35521
> > tristate "Sony Tulip Truly NT35521 panel"
> > depends on GPIOLIB && OF
> > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> > index 1630dd0c69ae..22155d62bec0 100644
> > --- a/drivers/gpu/drm/panel/Makefile
> > +++ b/drivers/gpu/drm/panel/Makefile
> > @@ -68,6 +68,7 @@ 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_SONY_ACX565AKM) += panel-sony-acx565akm.o
> > +obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o
> > obj-$(CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521) += panel-sony-tulip-truly-nt35521.o
> > obj-$(CONFIG_DRM_PANEL_SONY_SYNAPTICS_JDI) += panel-sony-synaptics-jdi.o
> > obj-$(CONFIG_DRM_PANEL_TDO_TL070WSH30) += panel-tdo-tl070wsh30.o
> > diff --git a/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c b/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
> > new file mode 100644
> > index 000000000000..8d8813dbaa45
> > --- /dev/null
> > +++ b/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
> > @@ -0,0 +1,329 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Copyright (c) 2022 Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
> > + *
> > + * Generated with linux-mdss-dsi-panel-driver-generator with a
> > + * substantial amount of manual adjustments.
> > + *
> > + * SONY Downstream kernel calls this one:
> > + * - "JDI ID3" for Akari (XZ2)
> > + * - "JDI ID4" for Apollo (XZ2 Compact)
> > + */
> > +
> > +#include <linux/delay.h>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/module.h>
> > +#include <linux/of.h>
> > +#include <linux/of_device.h>
> > +#include <linux/regulator/consumer.h>
> > +
> > +#include <video/mipi_display.h>
> > +
> > +#include <drm/drm_mipi_dsi.h>
> > +#include <drm/drm_modes.h>
> > +#include <drm/drm_panel.h>
> > +
> > +enum {
> > + TYPE_TAMA_60HZ,
> > + /*
> > + * Leaving room for expansion - SONY very often uses
> > + * *truly reliably* overclockable panels on their flagships!
> > + */
> > +};
> > +
> > +struct sony_td4353_jdi {
> > + struct drm_panel panel;
> > + struct mipi_dsi_device *dsi;
> > + struct regulator_bulk_data supplies[3];
> > + struct gpio_desc *panel_reset_gpio;
> > + struct gpio_desc *touch_reset_gpio;
> > + bool prepared;
> > + int type;
> > +};
> > +
> > +static inline struct sony_td4353_jdi *to_sony_td4353_jdi(struct drm_panel *panel)
> > +{
> > + return container_of(panel, struct sony_td4353_jdi, panel);
> > +}
> > +
> > +static int sony_td4353_jdi_on(struct sony_td4353_jdi *ctx)
> > +{
> > + struct mipi_dsi_device *dsi = ctx->dsi;
> > + struct device *dev = &dsi->dev;
> > + int ret;
> > +
> > + dsi->mode_flags |= MIPI_DSI_MODE_LPM;
> > +
> > + ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 1080 - 1);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to set column address: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 2160 - 1);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to set page address: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to set tear scanline: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to set tear on: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
> > +
> > + ret = mipi_dsi_dcs_set_pixel_format(dsi, 0x77);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to set pixel format: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_PARTIAL_ROWS,
> > + 0x00, 0x00, 0x08, 0x6f);
> > +
> > + ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
> > + return ret;
> > + }
> > + msleep(70);
> > +
> > + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START);
> > +
> > + ret = mipi_dsi_dcs_set_display_on(dsi);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to turn display on: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int sony_td4353_jdi_off(struct sony_td4353_jdi *ctx)
> > +{
> > + struct mipi_dsi_device *dsi = ctx->dsi;
> > + struct device *dev = &dsi->dev;
> > + int ret;
> > +
> > + dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
> > +
> > + ret = mipi_dsi_dcs_set_display_off(dsi);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to set display off: %d\n", ret);
> > + return ret;
> > + }
> > + msleep(22);
> > +
> > + ret = mipi_dsi_dcs_set_tear_off(dsi);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to set tear off: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
> > + return ret;
> > + }
> > + msleep(80);
> > +
> > + return 0;
> > +}
> > +
> > +static void sony_td4353_assert_reset_gpios(struct sony_td4353_jdi *ctx, int mode)
> > +{
> > + gpiod_set_value_cansleep(ctx->touch_reset_gpio, mode);
> > + gpiod_set_value_cansleep(ctx->panel_reset_gpio, mode);
> > + usleep_range(5000, 5100);
> > +}
> > +
> > +static int sony_td4353_jdi_prepare(struct drm_panel *panel)
> > +{
> > + struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
> > + struct device *dev = &ctx->dsi->dev;
> > + int ret;
> > +
> > + if (ctx->prepared)
> > + return 0;
> > +
> > + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to enable regulators: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + msleep(100);
> > +
> > + sony_td4353_assert_reset_gpios(ctx, 1);
> > +
> > + ret = sony_td4353_jdi_on(ctx);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to power on panel: %d\n", ret);
> > + sony_td4353_assert_reset_gpios(ctx, 0);
> > + regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> > + return ret;
> > + }
> > +
> > + ctx->prepared = true;
> > + return 0;
> > +}
> > +
> > +static int sony_td4353_jdi_unprepare(struct drm_panel *panel)
> > +{
> > + struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
> > + struct device *dev = &ctx->dsi->dev;
> > + int ret;
> > +
> > + if (!ctx->prepared)
> > + return 0;
> > +
> > + ret = sony_td4353_jdi_off(ctx);
> > + if (ret < 0)
> > + dev_err(dev, "Failed to power off panel: %d\n", ret);
> > +
> > + sony_td4353_assert_reset_gpios(ctx, 0);
> > + regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> > +
> > + ctx->prepared = false;
> > + return 0;
> > +}
> > +
> > +static const struct drm_display_mode sony_td4353_jdi_mode_tama_60hz = {
> > + .clock = (1080 + 4 + 8 + 8) * (2160 + 259 + 8 + 8) * 60 / 1000,
> > + .hdisplay = 1080,
> > + .hsync_start = 1080 + 4,
> > + .hsync_end = 1080 + 4 + 8,
> > + .htotal = 1080 + 4 + 8 + 8,
> > + .vdisplay = 2160,
> > + .vsync_start = 2160 + 259,
> > + .vsync_end = 2160 + 259 + 8,
> > + .vtotal = 2160 + 259 + 8 + 8,
> > + .width_mm = 64,
> > + .height_mm = 128,
> > +};
> > +
> > +static int sony_td4353_jdi_get_modes(struct drm_panel *panel,
> > + struct drm_connector *connector)
> > +{
> > + struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
> > + struct drm_display_mode *mode = NULL;
> > +
> > + if (ctx->type == TYPE_TAMA_60HZ)
> > + mode = drm_mode_duplicate(connector->dev, &sony_td4353_jdi_mode_tama_60hz);
> > + else
> > + return -EINVAL;
> > +
> > + if (!mode)
> > + return -ENOMEM;
> > +
> > + drm_mode_set_name(mode);
> > +
> > + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
> > + connector->display_info.width_mm = mode->width_mm;
> > + connector->display_info.height_mm = mode->height_mm;
> > + drm_mode_probed_add(connector, mode);
> > +
> > + return 1;
> > +}
> > +
> > +static const struct drm_panel_funcs sony_td4353_jdi_panel_funcs = {
> > + .prepare = sony_td4353_jdi_prepare,
> > + .unprepare = sony_td4353_jdi_unprepare,
> > + .get_modes = sony_td4353_jdi_get_modes,
> > +};
> > +
> > +static int sony_td4353_jdi_probe(struct mipi_dsi_device *dsi)
> > +{
> > + struct device *dev = &dsi->dev;
> > + struct sony_td4353_jdi *ctx;
> > + int ret;
> > +
> > + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
> > + if (!ctx)
> > + return -ENOMEM;
> > +
> > + ctx->type = (uintptr_t)of_device_get_match_data(dev);
> > +
> > + ctx->supplies[0].supply = "vddio";
> > + ctx->supplies[1].supply = "vsp";
> > + ctx->supplies[2].supply = "vsn";
> > + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
> > + ctx->supplies);
> > + if (ret < 0)
> > + return dev_err_probe(dev, ret, "Failed to get regulators\n");
> > +
> > + ctx->panel_reset_gpio = devm_gpiod_get(dev, "panel-reset", GPIOD_ASIS);
> > + if (IS_ERR(ctx->panel_reset_gpio))
> > + return dev_err_probe(dev, PTR_ERR(ctx->panel_reset_gpio),
> > + "Failed to get panel-reset-gpios\n");
> > +
> > + ctx->touch_reset_gpio = devm_gpiod_get(dev, "touch-reset", GPIOD_ASIS);
> > + if (IS_ERR(ctx->touch_reset_gpio))
> > + return dev_err_probe(dev, PTR_ERR(ctx->touch_reset_gpio),
> > + "Failed to get touch-reset-gpios\n");
> > +
> > + ctx->dsi = dsi;
> > + mipi_dsi_set_drvdata(dsi, ctx);
> > +
> > + dsi->lanes = 4;
> > + dsi->format = MIPI_DSI_FMT_RGB888;
> > + dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
> > +
> > + drm_panel_init(&ctx->panel, dev, &sony_td4353_jdi_panel_funcs,
> > + DRM_MODE_CONNECTOR_DSI);
> > +
> > + ret = drm_panel_of_backlight(&ctx->panel);
> > + if (ret)
> > + return dev_err_probe(dev, ret, "Failed to get backlight\n");
> > +
> > + drm_panel_add(&ctx->panel);
> > +
> > + ret = mipi_dsi_attach(dsi);
> > + if (ret < 0) {
> > + dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
> > + drm_panel_remove(&ctx->panel);
> > + return ret;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static void sony_td4353_jdi_remove(struct mipi_dsi_device *dsi)
> > +{
> > + struct sony_td4353_jdi *ctx = mipi_dsi_get_drvdata(dsi);
> > + int ret;
> > +
> > + ret = mipi_dsi_detach(dsi);
> > + if (ret < 0)
> > + dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
> > +
> > + drm_panel_remove(&ctx->panel);
> > +}
> > +
> > +static const struct of_device_id sony_td4353_jdi_of_match[] = {
> > + { .compatible = "sony,td4353-jdi-tama", .data = (void *)TYPE_TAMA_60HZ },
> > + { /* sentinel */ }
> > +};
> > +MODULE_DEVICE_TABLE(of, sony_td4353_jdi_of_match);
> > +
> > +static struct mipi_dsi_driver sony_td4353_jdi_driver = {
> > + .probe = sony_td4353_jdi_probe,
> > + .remove = sony_td4353_jdi_remove,
> > + .driver = {
> > + .name = "panel-sony-td4353-jdi",
> > + .of_match_table = sony_td4353_jdi_of_match,
> > + },
> > +};
> > +module_mipi_dsi_driver(sony_td4353_jdi_driver);
> > +
> > +MODULE_AUTHOR("Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>");
> > +MODULE_DESCRIPTION("DRM panel driver for SONY Xperia XZ2/XZ2c JDI panel");
> > +MODULE_LICENSE("GPL");



--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch