From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> To: Marijn Suijten <marijn.suijten@somainline.org>, Neil Armstrong <neil.armstrong@linaro.org>, Sam Ravnborg <sam@ravnborg.org>, David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Caleb Connolly <caleb@connolly.tech>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org> Cc: ~postmarketos/upstreaming@lists.sr.ht, AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>, Konrad Dybcio <konrad.dybcio@linaro.org>, Martin Botka <martin.botka@somainline.org>, Jami Kettunen <jami.kettunen@somainline.org>, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, Abhinav Kumar <quic_abhinavk@quicinc.com>, Kuogee Hsieh <quic_khsieh@quicinc.com>, Jessica Zhang <quic_jesszhan@quicinc.com> Subject: Re: [PATCH RFC 03/10] drm/panel: Add LGD panel driver for Sony Xperia XZ3 Date: Mon, 22 May 2023 04:16:20 +0300 [thread overview] Message-ID: <ccc97880-8e74-b85b-9679-9c12c44c4b99@linaro.org> (raw) In-Reply-To: <20230521-drm-panels-sony-v1-3-541c341d6bee@somainline.org> On 22/05/2023 00:23, Marijn Suijten wrote: > Sony provides an unlabeled LGD + Atmel maXTouch assembly in its Xperia > XZ3 (tama akatsuki) phone, with custom DCS commands to match. > > This panel features Display Stream Compression 1.1. > > Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> > --- > drivers/gpu/drm/panel/Kconfig | 11 + > drivers/gpu/drm/panel/Makefile | 1 + > drivers/gpu/drm/panel/panel-sony-akatsuki-lgd.c | 362 ++++++++++++++++++++++++ > 3 files changed, 374 insertions(+) > > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > index 67ef898d133f2..18bd116e78a71 100644 > --- a/drivers/gpu/drm/panel/Kconfig > +++ b/drivers/gpu/drm/panel/Kconfig > @@ -706,6 +706,17 @@ 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_AKATSUKI_LGD > + tristate "Sony Xperia XZ3 LGD 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 Xperia XZ3 > + 1440x2880@60 6.0" OLED DSI cmd mode panel produced by LG Display. > + > + This panel uses Display Stream Compression 1.1. > + > config DRM_PANEL_SONY_TD4353_JDI > tristate "Sony TD4353 JDI panel" > depends on GPIOLIB && OF > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > index ff169781e82d7..85133f73558f3 100644 > --- a/drivers/gpu/drm/panel/Makefile > +++ b/drivers/gpu/drm/panel/Makefile > @@ -71,6 +71,7 @@ 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-$(CONFIG_DRM_PANEL_SONY_AKATSUKI_LGD) += panel-sony-akatsuki-lgd.o > obj-$(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 > diff --git a/drivers/gpu/drm/panel/panel-sony-akatsuki-lgd.c b/drivers/gpu/drm/panel/panel-sony-akatsuki-lgd.c > new file mode 100644 > index 0000000000000..f55788f963dab > --- /dev/null > +++ b/drivers/gpu/drm/panel/panel-sony-akatsuki-lgd.c > @@ -0,0 +1,362 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * Copyright (c) 2023 Marijn Suijten <marijn.suijten@somainline.org> > + * > + * Based on Sony Downstream's "Atmel LGD ID5" Akatsuki panel dtsi. > + */ > + > +#include <linux/backlight.h> > +#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> > +#include <drm/drm_probe_helper.h> > +#include <drm/display/drm_dsc.h> > +#include <drm/display/drm_dsc_helper.h> > + > +struct sony_akatsuki_lgd { > + struct drm_panel panel; > + struct mipi_dsi_device *dsi; > + struct regulator *vddio; > + struct gpio_desc *reset_gpio; > + bool prepared; > +}; > + > +static inline struct sony_akatsuki_lgd *to_sony_akatsuki_lgd(struct drm_panel *panel) > +{ > + return container_of(panel, struct sony_akatsuki_lgd, panel); > +} > + > +static int sony_akatsuki_lgd_on(struct sony_akatsuki_lgd *ctx) > +{ > + struct mipi_dsi_device *dsi = ctx->dsi; > + struct device *dev = &dsi->dev; > + int ret; > + > + dsi->mode_flags |= MIPI_DSI_MODE_LPM; > + > + mipi_dsi_dcs_write_seq(dsi, 0x7f, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf1, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0x02, 0x01); > + mipi_dsi_dcs_write_seq(dsi, 0x59, 0x01); > + /* Enable backlight control */ > + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, BIT(5)); > + mipi_dsi_dcs_write_seq(dsi, 0x57, 0x20, 0x80, 0xde, 0x60, 0x00); > + > + ret = mipi_dsi_dcs_set_column_address(dsi, 0, 1440 - 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, 0, 2880 - 1); > + if (ret < 0) { > + dev_err(dev, "Failed to set page address: %d\n", ret); > + return ret; > + } > + > + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00); > + > + 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, 0x7f, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf1, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x03); > + mipi_dsi_dcs_write_seq(dsi, 0xf6, 0x04); > + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x05); > + mipi_dsi_dcs_write_seq(dsi, 0xf6, 0x01, 0x7f, 0x00); > + > + 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(120); > + > + mipi_dsi_dcs_write_seq(dsi, 0xe3, 0xac, 0x19, 0x34, 0x14, 0x7d); > + > + ret = mipi_dsi_dcs_set_display_on(dsi); > + if (ret < 0) { > + dev_err(dev, "Failed to turn display on: %d\n", ret); > + return ret; > + } My usual question: should the mipi_dsi_dcs_exit_sleep_mode() / mipi_dsi_dcs_set_display_on() be moved from prepare() to enable() part? > + > + return 0; > +} > + > +static int sony_akatsuki_lgd_off(struct sony_akatsuki_lgd *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 turn display off: %d\n", ret); > + return ret; > + } > + msleep(20); > + > + 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(100); > + > + return 0; > +} > + > +static int sony_akatsuki_lgd_prepare(struct drm_panel *panel) > +{ > + struct sony_akatsuki_lgd *ctx = to_sony_akatsuki_lgd(panel); > + struct drm_dsc_picture_parameter_set pps; > + struct device *dev = &ctx->dsi->dev; > + int ret; > + > + if (ctx->prepared) > + return 0; > + > + ret = regulator_enable(ctx->vddio); > + if (ret < 0) { > + dev_err(dev, "Failed to enable vddio regulator: %d\n", ret); > + return ret; > + } > + > + msleep(100); > + > + gpiod_set_value_cansleep(ctx->reset_gpio, 1); > + usleep_range(5000, 5100); > + > + ret = sony_akatsuki_lgd_on(ctx); > + if (ret < 0) { > + dev_err(dev, "Failed to power on panel: %d\n", ret); > + goto fail; > + } > + > + if (ctx->dsi->dsc) { dsi->dsc is always set, thus this condition can be dropped. > + drm_dsc_pps_payload_pack(&pps, ctx->dsi->dsc); > + > + ret = mipi_dsi_picture_parameter_set(ctx->dsi, &pps); > + if (ret < 0) { > + dev_err(panel->dev, "failed to transmit PPS: %d\n", ret); > + goto fail; > + } > + ret = mipi_dsi_compression_mode(ctx->dsi, true); > + if (ret < 0) { > + dev_err(dev, "failed to enable compression mode: %d\n", ret); > + goto fail; > + } > + > + msleep(28); > + } > + > + ctx->prepared = true; > + return 0; > + > +fail: > + gpiod_set_value_cansleep(ctx->reset_gpio, 0); > + regulator_disable(ctx->vddio); > + return ret; > +} > + > +static int sony_akatsuki_lgd_unprepare(struct drm_panel *panel) > +{ > + struct sony_akatsuki_lgd *ctx = to_sony_akatsuki_lgd(panel); > + struct device *dev = &ctx->dsi->dev; > + int ret; > + > + if (!ctx->prepared) > + return 0; > + > + ret = sony_akatsuki_lgd_off(ctx); > + if (ret < 0) > + dev_err(dev, "Failed to power off panel: %d\n", ret); > + > + gpiod_set_value_cansleep(ctx->reset_gpio, 0); > + regulator_disable(ctx->vddio); > + > + usleep_range(5000, 5100); > + > + ctx->prepared = false; > + return 0; > +} > + > +static const struct drm_display_mode sony_akatsuki_lgd_mode = { > + .clock = (1440 + 312 + 8 + 8) * (2880 + 48 + 8 + 8) * 60 / 1000, > + .hdisplay = 1440, > + .hsync_start = 1440 + 312, > + .hsync_end = 1440 + 312 + 8, > + .htotal = 1440 + 312 + 8 + 8, > + .vdisplay = 2880, > + .vsync_start = 2880 + 48, > + .vsync_end = 2880 + 48 + 8, > + .vtotal = 2880 + 48 + 8 + 8, > + .width_mm = 68, > + .height_mm = 136, > +}; > + > +static int sony_akatsuki_lgd_get_modes(struct drm_panel *panel, > + struct drm_connector *connector) > +{ > + return drm_connector_helper_get_modes_fixed(connector, &sony_akatsuki_lgd_mode); > +} > + > +static const struct drm_panel_funcs sony_akatsuki_lgd_panel_funcs = { > + .prepare = sony_akatsuki_lgd_prepare, > + .unprepare = sony_akatsuki_lgd_unprepare, > + .get_modes = sony_akatsuki_lgd_get_modes, > +}; > + > +static int sony_akatsuki_lgd_bl_update_status(struct backlight_device *bl) > +{ > + struct mipi_dsi_device *dsi = bl_get_data(bl); > + u16 brightness = backlight_get_brightness(bl); > + > + return mipi_dsi_dcs_set_display_brightness_large(dsi, brightness); > +} > + > +static int sony_akatsuki_lgd_bl_get_brightness(struct backlight_device *bl) > +{ > + struct mipi_dsi_device *dsi = bl_get_data(bl); > + u16 brightness; > + int ret; > + > + ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness); > + if (ret < 0) > + return ret; > + > + return brightness & 0x3ff; > +} > + > +static const struct backlight_ops sony_akatsuki_lgd_bl_ops = { > + .update_status = sony_akatsuki_lgd_bl_update_status, > + .get_brightness = sony_akatsuki_lgd_bl_get_brightness, > +}; > + > +static int sony_akatsuki_lgd_probe(struct mipi_dsi_device *dsi) > +{ > + const struct backlight_properties props = { > + .type = BACKLIGHT_RAW, > + .brightness = 100, > + .max_brightness = 1023, > + }; > + struct device *dev = &dsi->dev; > + struct sony_akatsuki_lgd *ctx; > + struct drm_dsc_config *dsc; > + int ret; > + > + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) > + return -ENOMEM; > + > + ctx->vddio = devm_regulator_get(dev, "vddio"); > + if (IS_ERR(ctx->vddio)) > + return dev_err_probe(dev, PTR_ERR(ctx->vddio), > + "Failed to get vddio\n"); > + > + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS); > + if (IS_ERR(ctx->reset_gpio)) > + return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), > + "Failed to get 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_akatsuki_lgd_panel_funcs, > + DRM_MODE_CONNECTOR_DSI); > + > + ctx->panel.backlight = devm_backlight_device_register(dev, dev_name(dev), dev, dsi, > + &sony_akatsuki_lgd_bl_ops, &props); > + if (IS_ERR(ctx->panel.backlight)) > + return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight), > + "Failed to create backlight\n"); > + > + drm_panel_add(&ctx->panel); > + > + /* This panel only supports DSC; unconditionally enable it */ > + dsi->dsc = dsc = devm_kzalloc(&dsi->dev, sizeof(*dsc), GFP_KERNEL); I think double assignments are frowned upon. > + if (!dsc) > + return -ENOMEM; > + > + dsc->dsc_version_major = 1; > + dsc->dsc_version_minor = 1; > + > + dsc->slice_height = 32; > + dsc->slice_count = 2; > + // TODO: Get hdisplay from the mode Would you like to fix the TODO? > + WARN_ON(1440 % dsc->slice_count); > + dsc->slice_width = 1440 / dsc->slice_count; > + dsc->bits_per_component = 8; > + dsc->bits_per_pixel = 8 << 4; /* 4 fractional bits */ > + dsc->block_pred_enable = true; > + > + 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_akatsuki_lgd_remove(struct mipi_dsi_device *dsi) > +{ > + struct sony_akatsuki_lgd *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_akatsuki_lgd_of_match[] = { > + { .compatible = "sony,akatsuki-lgd" }, > + { /* sentinel */ } > +}; > +MODULE_DEVICE_TABLE(of, sony_akatsuki_lgd_of_match); > + > +static struct mipi_dsi_driver sony_akatsuki_lgd_driver = { > + .probe = sony_akatsuki_lgd_probe, > + .remove = sony_akatsuki_lgd_remove, > + .driver = { > + .name = "panel-sony-akatsuki-lgd", > + .of_match_table = sony_akatsuki_lgd_of_match, > + }, > +}; > +module_mipi_dsi_driver(sony_akatsuki_lgd_driver); > + > +MODULE_AUTHOR("Marijn Suijten <marijn.suijten@somainline.org>"); > +MODULE_DESCRIPTION("DRM panel driver for an unnamed LGD OLED panel found in the Sony Xperia XZ3"); > +MODULE_LICENSE("GPL"); > -- With best wishes Dmitry
WARNING: multiple messages have this Message-ID (diff)
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> To: Marijn Suijten <marijn.suijten@somainline.org>, Neil Armstrong <neil.armstrong@linaro.org>, Sam Ravnborg <sam@ravnborg.org>, David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Caleb Connolly <caleb@connolly.tech>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org> Cc: devicetree@vger.kernel.org, Jami Kettunen <jami.kettunen@somainline.org>, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Abhinav Kumar <quic_abhinavk@quicinc.com>, Konrad Dybcio <konrad.dybcio@linaro.org>, Martin Botka <martin.botka@somainline.org>, ~postmarketos/upstreaming@lists.sr.ht, AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>, Jessica Zhang <quic_jesszhan@quicinc.com>, Kuogee Hsieh <quic_khsieh@quicinc.com> Subject: Re: [PATCH RFC 03/10] drm/panel: Add LGD panel driver for Sony Xperia XZ3 Date: Mon, 22 May 2023 04:16:20 +0300 [thread overview] Message-ID: <ccc97880-8e74-b85b-9679-9c12c44c4b99@linaro.org> (raw) In-Reply-To: <20230521-drm-panels-sony-v1-3-541c341d6bee@somainline.org> On 22/05/2023 00:23, Marijn Suijten wrote: > Sony provides an unlabeled LGD + Atmel maXTouch assembly in its Xperia > XZ3 (tama akatsuki) phone, with custom DCS commands to match. > > This panel features Display Stream Compression 1.1. > > Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> > --- > drivers/gpu/drm/panel/Kconfig | 11 + > drivers/gpu/drm/panel/Makefile | 1 + > drivers/gpu/drm/panel/panel-sony-akatsuki-lgd.c | 362 ++++++++++++++++++++++++ > 3 files changed, 374 insertions(+) > > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > index 67ef898d133f2..18bd116e78a71 100644 > --- a/drivers/gpu/drm/panel/Kconfig > +++ b/drivers/gpu/drm/panel/Kconfig > @@ -706,6 +706,17 @@ 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_AKATSUKI_LGD > + tristate "Sony Xperia XZ3 LGD 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 Xperia XZ3 > + 1440x2880@60 6.0" OLED DSI cmd mode panel produced by LG Display. > + > + This panel uses Display Stream Compression 1.1. > + > config DRM_PANEL_SONY_TD4353_JDI > tristate "Sony TD4353 JDI panel" > depends on GPIOLIB && OF > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > index ff169781e82d7..85133f73558f3 100644 > --- a/drivers/gpu/drm/panel/Makefile > +++ b/drivers/gpu/drm/panel/Makefile > @@ -71,6 +71,7 @@ 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-$(CONFIG_DRM_PANEL_SONY_AKATSUKI_LGD) += panel-sony-akatsuki-lgd.o > obj-$(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 > diff --git a/drivers/gpu/drm/panel/panel-sony-akatsuki-lgd.c b/drivers/gpu/drm/panel/panel-sony-akatsuki-lgd.c > new file mode 100644 > index 0000000000000..f55788f963dab > --- /dev/null > +++ b/drivers/gpu/drm/panel/panel-sony-akatsuki-lgd.c > @@ -0,0 +1,362 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * Copyright (c) 2023 Marijn Suijten <marijn.suijten@somainline.org> > + * > + * Based on Sony Downstream's "Atmel LGD ID5" Akatsuki panel dtsi. > + */ > + > +#include <linux/backlight.h> > +#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> > +#include <drm/drm_probe_helper.h> > +#include <drm/display/drm_dsc.h> > +#include <drm/display/drm_dsc_helper.h> > + > +struct sony_akatsuki_lgd { > + struct drm_panel panel; > + struct mipi_dsi_device *dsi; > + struct regulator *vddio; > + struct gpio_desc *reset_gpio; > + bool prepared; > +}; > + > +static inline struct sony_akatsuki_lgd *to_sony_akatsuki_lgd(struct drm_panel *panel) > +{ > + return container_of(panel, struct sony_akatsuki_lgd, panel); > +} > + > +static int sony_akatsuki_lgd_on(struct sony_akatsuki_lgd *ctx) > +{ > + struct mipi_dsi_device *dsi = ctx->dsi; > + struct device *dev = &dsi->dev; > + int ret; > + > + dsi->mode_flags |= MIPI_DSI_MODE_LPM; > + > + mipi_dsi_dcs_write_seq(dsi, 0x7f, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf1, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0x02, 0x01); > + mipi_dsi_dcs_write_seq(dsi, 0x59, 0x01); > + /* Enable backlight control */ > + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, BIT(5)); > + mipi_dsi_dcs_write_seq(dsi, 0x57, 0x20, 0x80, 0xde, 0x60, 0x00); > + > + ret = mipi_dsi_dcs_set_column_address(dsi, 0, 1440 - 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, 0, 2880 - 1); > + if (ret < 0) { > + dev_err(dev, "Failed to set page address: %d\n", ret); > + return ret; > + } > + > + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00); > + > + 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, 0x7f, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf1, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x5a, 0x5a); > + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x03); > + mipi_dsi_dcs_write_seq(dsi, 0xf6, 0x04); > + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x05); > + mipi_dsi_dcs_write_seq(dsi, 0xf6, 0x01, 0x7f, 0x00); > + > + 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(120); > + > + mipi_dsi_dcs_write_seq(dsi, 0xe3, 0xac, 0x19, 0x34, 0x14, 0x7d); > + > + ret = mipi_dsi_dcs_set_display_on(dsi); > + if (ret < 0) { > + dev_err(dev, "Failed to turn display on: %d\n", ret); > + return ret; > + } My usual question: should the mipi_dsi_dcs_exit_sleep_mode() / mipi_dsi_dcs_set_display_on() be moved from prepare() to enable() part? > + > + return 0; > +} > + > +static int sony_akatsuki_lgd_off(struct sony_akatsuki_lgd *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 turn display off: %d\n", ret); > + return ret; > + } > + msleep(20); > + > + 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(100); > + > + return 0; > +} > + > +static int sony_akatsuki_lgd_prepare(struct drm_panel *panel) > +{ > + struct sony_akatsuki_lgd *ctx = to_sony_akatsuki_lgd(panel); > + struct drm_dsc_picture_parameter_set pps; > + struct device *dev = &ctx->dsi->dev; > + int ret; > + > + if (ctx->prepared) > + return 0; > + > + ret = regulator_enable(ctx->vddio); > + if (ret < 0) { > + dev_err(dev, "Failed to enable vddio regulator: %d\n", ret); > + return ret; > + } > + > + msleep(100); > + > + gpiod_set_value_cansleep(ctx->reset_gpio, 1); > + usleep_range(5000, 5100); > + > + ret = sony_akatsuki_lgd_on(ctx); > + if (ret < 0) { > + dev_err(dev, "Failed to power on panel: %d\n", ret); > + goto fail; > + } > + > + if (ctx->dsi->dsc) { dsi->dsc is always set, thus this condition can be dropped. > + drm_dsc_pps_payload_pack(&pps, ctx->dsi->dsc); > + > + ret = mipi_dsi_picture_parameter_set(ctx->dsi, &pps); > + if (ret < 0) { > + dev_err(panel->dev, "failed to transmit PPS: %d\n", ret); > + goto fail; > + } > + ret = mipi_dsi_compression_mode(ctx->dsi, true); > + if (ret < 0) { > + dev_err(dev, "failed to enable compression mode: %d\n", ret); > + goto fail; > + } > + > + msleep(28); > + } > + > + ctx->prepared = true; > + return 0; > + > +fail: > + gpiod_set_value_cansleep(ctx->reset_gpio, 0); > + regulator_disable(ctx->vddio); > + return ret; > +} > + > +static int sony_akatsuki_lgd_unprepare(struct drm_panel *panel) > +{ > + struct sony_akatsuki_lgd *ctx = to_sony_akatsuki_lgd(panel); > + struct device *dev = &ctx->dsi->dev; > + int ret; > + > + if (!ctx->prepared) > + return 0; > + > + ret = sony_akatsuki_lgd_off(ctx); > + if (ret < 0) > + dev_err(dev, "Failed to power off panel: %d\n", ret); > + > + gpiod_set_value_cansleep(ctx->reset_gpio, 0); > + regulator_disable(ctx->vddio); > + > + usleep_range(5000, 5100); > + > + ctx->prepared = false; > + return 0; > +} > + > +static const struct drm_display_mode sony_akatsuki_lgd_mode = { > + .clock = (1440 + 312 + 8 + 8) * (2880 + 48 + 8 + 8) * 60 / 1000, > + .hdisplay = 1440, > + .hsync_start = 1440 + 312, > + .hsync_end = 1440 + 312 + 8, > + .htotal = 1440 + 312 + 8 + 8, > + .vdisplay = 2880, > + .vsync_start = 2880 + 48, > + .vsync_end = 2880 + 48 + 8, > + .vtotal = 2880 + 48 + 8 + 8, > + .width_mm = 68, > + .height_mm = 136, > +}; > + > +static int sony_akatsuki_lgd_get_modes(struct drm_panel *panel, > + struct drm_connector *connector) > +{ > + return drm_connector_helper_get_modes_fixed(connector, &sony_akatsuki_lgd_mode); > +} > + > +static const struct drm_panel_funcs sony_akatsuki_lgd_panel_funcs = { > + .prepare = sony_akatsuki_lgd_prepare, > + .unprepare = sony_akatsuki_lgd_unprepare, > + .get_modes = sony_akatsuki_lgd_get_modes, > +}; > + > +static int sony_akatsuki_lgd_bl_update_status(struct backlight_device *bl) > +{ > + struct mipi_dsi_device *dsi = bl_get_data(bl); > + u16 brightness = backlight_get_brightness(bl); > + > + return mipi_dsi_dcs_set_display_brightness_large(dsi, brightness); > +} > + > +static int sony_akatsuki_lgd_bl_get_brightness(struct backlight_device *bl) > +{ > + struct mipi_dsi_device *dsi = bl_get_data(bl); > + u16 brightness; > + int ret; > + > + ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness); > + if (ret < 0) > + return ret; > + > + return brightness & 0x3ff; > +} > + > +static const struct backlight_ops sony_akatsuki_lgd_bl_ops = { > + .update_status = sony_akatsuki_lgd_bl_update_status, > + .get_brightness = sony_akatsuki_lgd_bl_get_brightness, > +}; > + > +static int sony_akatsuki_lgd_probe(struct mipi_dsi_device *dsi) > +{ > + const struct backlight_properties props = { > + .type = BACKLIGHT_RAW, > + .brightness = 100, > + .max_brightness = 1023, > + }; > + struct device *dev = &dsi->dev; > + struct sony_akatsuki_lgd *ctx; > + struct drm_dsc_config *dsc; > + int ret; > + > + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) > + return -ENOMEM; > + > + ctx->vddio = devm_regulator_get(dev, "vddio"); > + if (IS_ERR(ctx->vddio)) > + return dev_err_probe(dev, PTR_ERR(ctx->vddio), > + "Failed to get vddio\n"); > + > + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS); > + if (IS_ERR(ctx->reset_gpio)) > + return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), > + "Failed to get 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_akatsuki_lgd_panel_funcs, > + DRM_MODE_CONNECTOR_DSI); > + > + ctx->panel.backlight = devm_backlight_device_register(dev, dev_name(dev), dev, dsi, > + &sony_akatsuki_lgd_bl_ops, &props); > + if (IS_ERR(ctx->panel.backlight)) > + return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight), > + "Failed to create backlight\n"); > + > + drm_panel_add(&ctx->panel); > + > + /* This panel only supports DSC; unconditionally enable it */ > + dsi->dsc = dsc = devm_kzalloc(&dsi->dev, sizeof(*dsc), GFP_KERNEL); I think double assignments are frowned upon. > + if (!dsc) > + return -ENOMEM; > + > + dsc->dsc_version_major = 1; > + dsc->dsc_version_minor = 1; > + > + dsc->slice_height = 32; > + dsc->slice_count = 2; > + // TODO: Get hdisplay from the mode Would you like to fix the TODO? > + WARN_ON(1440 % dsc->slice_count); > + dsc->slice_width = 1440 / dsc->slice_count; > + dsc->bits_per_component = 8; > + dsc->bits_per_pixel = 8 << 4; /* 4 fractional bits */ > + dsc->block_pred_enable = true; > + > + 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_akatsuki_lgd_remove(struct mipi_dsi_device *dsi) > +{ > + struct sony_akatsuki_lgd *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_akatsuki_lgd_of_match[] = { > + { .compatible = "sony,akatsuki-lgd" }, > + { /* sentinel */ } > +}; > +MODULE_DEVICE_TABLE(of, sony_akatsuki_lgd_of_match); > + > +static struct mipi_dsi_driver sony_akatsuki_lgd_driver = { > + .probe = sony_akatsuki_lgd_probe, > + .remove = sony_akatsuki_lgd_remove, > + .driver = { > + .name = "panel-sony-akatsuki-lgd", > + .of_match_table = sony_akatsuki_lgd_of_match, > + }, > +}; > +module_mipi_dsi_driver(sony_akatsuki_lgd_driver); > + > +MODULE_AUTHOR("Marijn Suijten <marijn.suijten@somainline.org>"); > +MODULE_DESCRIPTION("DRM panel driver for an unnamed LGD OLED panel found in the Sony Xperia XZ3"); > +MODULE_LICENSE("GPL"); > -- With best wishes Dmitry
next prev parent reply other threads:[~2023-05-22 1:16 UTC|newest] Thread overview: 146+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-05-21 21:23 [PATCH RFC 00/10] drm/panel: Drivers for four Sony CMD-mode (and DSC) panels Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-21 21:23 ` [PATCH RFC 01/10] drm/panel: Clean up SOFEF00 config dependencies Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-22 9:01 ` Neil Armstrong 2023-05-22 9:01 ` Neil Armstrong 2023-05-28 22:00 ` Caleb Connolly 2023-05-28 22:00 ` Caleb Connolly 2023-05-21 21:23 ` [PATCH RFC 02/10] dt-bindings: display: panel: Describe Sony Xperia XZ3's LGD panel Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-22 0:10 ` Dmitry Baryshkov 2023-05-22 0:10 ` Dmitry Baryshkov 2023-05-21 21:23 ` [PATCH RFC 03/10] drm/panel: Add LGD panel driver for Sony Xperia XZ3 Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-22 1:16 ` Dmitry Baryshkov [this message] 2023-05-22 1:16 ` Dmitry Baryshkov 2023-05-22 9:04 ` Neil Armstrong 2023-05-22 9:04 ` Neil Armstrong 2023-05-22 12:58 ` Dmitry Baryshkov 2023-05-22 12:58 ` Dmitry Baryshkov 2023-05-29 21:07 ` Marijn Suijten 2023-05-29 21:07 ` Marijn Suijten 2023-05-29 22:18 ` Dmitry Baryshkov 2023-05-29 22:18 ` Dmitry Baryshkov 2023-05-29 22:37 ` Marijn Suijten 2023-05-29 22:37 ` Marijn Suijten 2023-05-29 22:39 ` Dmitry Baryshkov 2023-05-29 22:39 ` Dmitry Baryshkov 2023-05-30 8:27 ` Marijn Suijten 2023-05-30 8:27 ` Marijn Suijten 2023-05-30 11:11 ` Dmitry Baryshkov 2023-05-30 11:11 ` Dmitry Baryshkov 2023-05-30 18:19 ` Marijn Suijten 2023-05-30 18:19 ` Marijn Suijten 2023-05-30 17:54 ` Abhinav Kumar 2023-05-30 17:54 ` Abhinav Kumar 2023-05-30 18:13 ` Marijn Suijten 2023-05-30 18:13 ` Marijn Suijten 2023-05-30 23:16 ` Dmitry Baryshkov 2023-05-30 23:16 ` Dmitry Baryshkov 2023-05-29 21:11 ` Marijn Suijten 2023-05-29 21:11 ` Marijn Suijten 2023-05-29 22:17 ` Dmitry Baryshkov 2023-05-29 22:17 ` Dmitry Baryshkov 2023-05-29 22:36 ` Dmitry Baryshkov 2023-05-29 22:36 ` Dmitry Baryshkov 2023-05-30 7:24 ` Neil Armstrong 2023-05-30 7:24 ` Neil Armstrong 2023-05-30 8:41 ` Marijn Suijten 2023-05-30 8:41 ` Marijn Suijten 2023-05-30 9:29 ` Konrad Dybcio 2023-05-30 9:29 ` Konrad Dybcio 2023-05-30 11:44 ` RFC: DSI host capabilities (was: [PATCH RFC 03/10] drm/panel: Add LGD panel driver for Sony Xperia XZ3) Dmitry Baryshkov 2023-05-30 11:44 ` Dmitry Baryshkov 2023-05-30 12:15 ` AngeloGioacchino Del Regno 2023-05-30 12:15 ` AngeloGioacchino Del Regno 2023-05-30 12:36 ` Dmitry Baryshkov 2023-05-30 12:36 ` Dmitry Baryshkov 2023-05-30 15:44 ` Neil Armstrong 2023-05-30 15:44 ` Neil Armstrong 2023-05-31 8:02 ` AngeloGioacchino Del Regno 2023-05-31 8:02 ` AngeloGioacchino Del Regno 2023-07-05 12:04 ` Maxime Ripard 2023-07-05 12:04 ` Maxime Ripard 2023-07-05 13:05 ` Neil Armstrong 2023-07-05 13:05 ` Neil Armstrong 2023-07-05 13:29 ` Maxime Ripard 2023-07-05 13:29 ` Maxime Ripard 2023-07-05 13:37 ` Dmitry Baryshkov 2023-07-05 13:37 ` Dmitry Baryshkov 2023-07-05 14:24 ` Maxime Ripard 2023-07-05 14:24 ` Maxime Ripard 2023-07-05 15:20 ` Dmitry Baryshkov 2023-07-05 15:20 ` Dmitry Baryshkov 2023-07-05 16:53 ` Maxime Ripard 2023-07-05 16:53 ` Maxime Ripard 2023-07-05 20:09 ` Dmitry Baryshkov 2023-07-05 20:09 ` Dmitry Baryshkov 2023-07-06 7:24 ` Maxime Ripard 2023-07-06 7:24 ` Maxime Ripard 2023-07-06 7:33 ` Neil Armstrong 2023-07-06 7:33 ` Neil Armstrong 2023-07-06 7:59 ` Maxime Ripard 2023-07-06 7:59 ` Maxime Ripard 2023-07-06 8:03 ` Neil Armstrong 2023-07-06 8:03 ` Neil Armstrong 2023-07-05 15:58 ` Neil Armstrong 2023-07-05 15:58 ` Neil Armstrong 2023-05-21 21:23 ` [PATCH RFC 04/10] arm64: dts: qcom: sdm845-akatsuki: Configure OLED panel Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-21 21:23 ` [PATCH RFC 05/10] dt-bindings: display: panel: Describe Samsung SOFEF01-M Display-IC Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-21 22:23 ` Rob Herring 2023-05-21 22:23 ` Rob Herring 2023-05-21 21:23 ` [PATCH RFC 06/10] drm/panel/samsung-sofef01: Add panel driver for Sony Xperia 5 / 10 II Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-22 1:19 ` Dmitry Baryshkov 2023-05-22 1:19 ` Dmitry Baryshkov 2023-05-22 16:30 ` Konrad Dybcio 2023-05-22 16:30 ` Konrad Dybcio 2023-05-22 22:38 ` Marijn Suijten 2023-05-22 22:38 ` Marijn Suijten 2023-05-22 22:32 ` Marijn Suijten 2023-05-22 22:32 ` Marijn Suijten 2023-05-22 22:56 ` Dmitry Baryshkov 2023-05-22 22:56 ` Dmitry Baryshkov 2023-05-29 20:58 ` Marijn Suijten 2023-05-29 20:58 ` Marijn Suijten 2023-05-29 22:20 ` Dmitry Baryshkov 2023-05-29 22:20 ` Dmitry Baryshkov 2023-05-29 22:35 ` Marijn Suijten 2023-05-29 22:35 ` Marijn Suijten 2023-05-21 21:23 ` [PATCH RFC 07/10] dt-bindings: display: panel: Describe Samsung SOFEF03-M Display-IC Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-06-08 19:43 ` Rob Herring 2023-06-08 19:43 ` Rob Herring 2023-05-21 21:23 ` [PATCH RFC 08/10] drm/panel/samsung-sofef03: Add panel driver for Sony Xperia 5 II Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-22 1:23 ` Dmitry Baryshkov 2023-05-22 1:23 ` Dmitry Baryshkov 2023-05-22 9:08 ` Neil Armstrong 2023-05-22 9:08 ` Neil Armstrong 2023-05-22 12:57 ` Dmitry Baryshkov 2023-05-22 12:57 ` Dmitry Baryshkov 2023-05-29 21:21 ` Marijn Suijten 2023-05-29 21:21 ` Marijn Suijten 2023-05-29 21:29 ` Konrad Dybcio 2023-05-29 21:29 ` Konrad Dybcio 2023-05-29 22:22 ` Dmitry Baryshkov 2023-05-29 22:22 ` Dmitry Baryshkov 2023-05-29 22:33 ` Marijn Suijten 2023-05-29 22:33 ` Marijn Suijten 2023-05-22 16:31 ` Konrad Dybcio 2023-05-22 16:31 ` Konrad Dybcio 2023-05-21 21:23 ` [PATCH RFC 09/10] dt-bindings: display: panel: Describe Sony Xperia 1 display Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-05-21 22:23 ` Rob Herring 2023-05-21 22:23 ` Rob Herring 2023-05-21 21:23 ` [PATCH RFC 10/10] drm/panel/sony-griffin-samsung: Add panel driver for Sony Xperia 1 Marijn Suijten 2023-05-21 21:23 ` Marijn Suijten 2023-06-28 9:22 ` Linus Walleij 2023-06-28 9:22 ` Linus Walleij 2023-06-28 14:20 ` Marijn Suijten 2023-06-28 14:20 ` Marijn Suijten 2023-06-28 19:18 ` Linus Walleij 2023-06-28 19:18 ` Linus Walleij
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