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Date: Fri, 9 Dec 2022 21:46:43 +0100
From: Marijn Suijten <marijn.suijten@...ainline.org>
To: Konrad Dybcio <konrad.dybcio@...ainline.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, martin.botka@...ainline.org,
angelogioacchino.delregno@...ainline.org,
jamipkettunen@...ainline.org,
Thierry Reding <thierry.reding@...il.com>,
Sam Ravnborg <sam@...nborg.org>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org,
dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v3 2/2] gpu/drm/panel: Add Sony TD4353 JDI panel driver
On 2022-09-30 20:08:11, Konrad Dybcio wrote:
> Add support for the Sony TD4353 JDI 2160x1080 display panel used in
This is a vertical panel of 1080x2160 right?
> 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@...ainline.org>
Reviewed-by: Marijn Suijten <marijn.suijten@...ainline.org>
Apart from some minor nits about how we can change seemingly magical hex
constants to a decimal represntation, which makes it more obvious (to
the reader) that these are just width-1 and height-1.
> ---
> Changes since v2:
> - "GPL v2" -> "GPL"
> - add missing S-o-b (how embarassing)
> - move { after sony_td4353_assert_reset_gpios() to a new line
>
> 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 a582ddd583c2..6ef1b48169b5 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -637,6 +637,16 @@ 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 8e71aa7581b8..8ef27bc86f94 100644
> --- a/drivers/gpu/drm/panel/Makefile
> +++ b/drivers/gpu/drm/panel/Makefile
> @@ -64,6 +64,7 @@ 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-$(CONFIG_DRM_PANEL_TDO_TL070WSH30) += panel-tdo-tl070wsh30.o
> obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.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..11db62992b8b
> --- /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@...ainline.org>
> + *
> + * 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, 0x0437);
As discussed offline, can we just use 0, 1079 here? That way it's a bit
more clear that our column address is just width-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, 0x086f);
And 2159 here.
> + if (ret < 0) {
> + dev_err(dev, "Failed to set page address: %d\n", ret);
> + return ret;
> + }
> +
> + ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0x0000);
Just 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);
Unfortunate that 0x86f is again 2159 here, but we cannot easily
represent it.
- Marijn
> +
> + 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@...ainline.org>");
> +MODULE_DESCRIPTION("DRM panel driver for SONY Xperia XZ2/XZ2c JDI panel");
> +MODULE_LICENSE("GPL");
> --
> 2.37.3
>
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