From: Neil Armstrong <neil.armstrong@linaro.org>
To: Jessica Zhang <quic_jesszhan@quicinc.com>,
Sam Ravnborg <sam@ravnborg.org>, David Airlie <airlied@gmail.com>,
Daniel Vetter <daniel@ffwll.ch>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>,
dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] drm/panel: Add driver for Visionox r66451 panel
Date: Mon, 22 May 2023 11:09:02 +0200 [thread overview]
Message-ID: <fbffee01-44ef-8912-7b3b-574d34306d45@linaro.org> (raw)
In-Reply-To: <20230516-b4-r66451-panel-driver-v1-2-4210bcbb1649@quicinc.com>
On 16/05/2023 22:20, Jessica Zhang wrote:
> Add support for the 1080x2340 Visionox R66451 AMOLED DSI panel that
> comes with the Qualcomm HDK8350 display expansion pack.
>
> The panel enables display compression (DSC v1.2) by default.
>
> Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
> ---
> drivers/gpu/drm/panel/Kconfig | 8 +
> drivers/gpu/drm/panel/Makefile | 1 +
> drivers/gpu/drm/panel/panel-visionox-r66451.c | 395 ++++++++++++++++++++++++++
> 3 files changed, 404 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index 29cf5fa39ff2..9c2c36dbddf3 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -766,6 +766,14 @@ config DRM_PANEL_VISIONOX_VTDR6130
> Say Y here if you want to enable support for Visionox
> VTDR6130 1080x2400 AMOLED DSI panel.
>
> +config DRM_PANEL_VISIONOX_R66451
> + tristate "Visionox R66451"
> + depends on OF
> + depends on DRM_MIPI_DSI
You may also want
+ depends on BACKLIGHT_CLASS_DEVICE
> + help
> + Say Y here if you want to enable support for Visionox
> + R66451 1080x2340 AMOLED DSI panel.
> +
> config DRM_PANEL_WIDECHIPS_WS2401
> tristate "Widechips WS2401 DPI panel driver"
> depends on SPI && GPIOLIB
> diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> index b3e8ba29edd3..e043a92ee676 100644
> --- a/drivers/gpu/drm/panel/Makefile
> +++ b/drivers/gpu/drm/panel/Makefile
> @@ -78,5 +78,6 @@ obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
> obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o
> obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o
> obj-$(CONFIG_DRM_PANEL_VISIONOX_VTDR6130) += panel-visionox-vtdr6130.o
> +obj-$(CONFIG_DRM_PANEL_VISIONOX_R66451) += panel-visionox-r66451.o
> obj-$(CONFIG_DRM_PANEL_WIDECHIPS_WS2401) += panel-widechips-ws2401.o
> obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o
> diff --git a/drivers/gpu/drm/panel/panel-visionox-r66451.c b/drivers/gpu/drm/panel/panel-visionox-r66451.c
> new file mode 100644
> index 000000000000..e3648ead3e84
> --- /dev/null
> +++ b/drivers/gpu/drm/panel/panel-visionox-r66451.c
> @@ -0,0 +1,395 @@
> +//SPDX-License-Identifier: GPL-2.0-only
> +//Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
> +
> +#include <linux/backlight.h>
> +#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_mipi_dsi.h>
> +#include <drm/drm_modes.h>
> +#include <drm/drm_panel.h>
> +#include <drm/display/drm_dsc.h>
> +#include <drm/display/drm_dsc_helper.h>
> +
> +#include <video/mipi_display.h>
> +
> +struct visionox_r66451 {
> + struct drm_panel panel;
> + struct mipi_dsi_device *dsi;
> + struct gpio_desc *reset_gpio;
> + struct regulator_bulk_data supplies[2];
> + bool prepared, enabled;
> +};
> +
> +static inline struct visionox_r66451 *to_visionox_r66451(struct drm_panel *panel)
> +{
> + return container_of(panel, struct visionox_r66451, panel);
> +}
> +
> +static void visionox_r66451_reset(struct visionox_r66451 *ctx)
> +{
> + gpiod_set_value_cansleep(ctx->reset_gpio, 0);
> + usleep_range(10000, 10100);
> + gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> + usleep_range(10000, 10100);
> + gpiod_set_value_cansleep(ctx->reset_gpio, 0);
> + usleep_range(10000, 10100);
> +}
> +
> +static int visionox_r66451_on(struct visionox_r66451 *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, 0xb0, 0x00);
> + mipi_dsi_dcs_write_seq(dsi, 0xc2,
> + 0x09, 0x24, 0x0c, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00,
> + 0x09, 0x3c);
> + mipi_dsi_dcs_write_seq(dsi, 0xd7,
> + 0x00, 0xb9, 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a,
> + 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19,
> + 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a);
> + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x80);
> + mipi_dsi_dcs_write_seq(dsi, 0xde,
> + 0x40, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18,
> + 0x10, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x02, 0x00, 0x00);
> + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x04);
> + mipi_dsi_dcs_write_seq(dsi, 0xe8, 0x00, 0x02);
> + mipi_dsi_dcs_write_seq(dsi, 0xe4, 0x00, 0x08);
> + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x00);
> + mipi_dsi_dcs_write_seq(dsi, 0xc4,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x32);
> + mipi_dsi_dcs_write_seq(dsi, 0xcf,
> + 0x64, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
> + 0x00, 0x0b, 0x77, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
> + 0x02, 0x02, 0x02, 0x02, 0x02, 0x03);
> + mipi_dsi_dcs_write_seq(dsi, 0xd3,
> + 0x45, 0x00, 0x00, 0x01, 0x13, 0x15, 0x00, 0x15, 0x07,
> + 0x0f, 0x77, 0x77, 0x77, 0x37, 0xb2, 0x11, 0x00, 0xa0,
> + 0x3c, 0x9c);
> + mipi_dsi_dcs_write_seq(dsi, 0xd7,
> + 0x00, 0xb9, 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a,
> + 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19,
> + 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a);
> + mipi_dsi_dcs_write_seq(dsi, 0xd8,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a,
> + 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x0a, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a,
> + 0x00, 0x32, 0x00, 0x0a, 0x00, 0x22);
> + mipi_dsi_dcs_write_seq(dsi, 0xdf,
> + 0x50, 0x42, 0x58, 0x81, 0x2d, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x6b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x01, 0x0f, 0xff, 0xd4, 0x0e, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x0f, 0x53, 0xf1, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
> + mipi_dsi_dcs_write_seq(dsi, 0xf7, 0x01);
> + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x80);
> + mipi_dsi_dcs_write_seq(dsi, 0xe4, 0x34, 0xb4, 0x00, 0x00, 0x00, 0x39, 0x04, 0x09, 0x34);
> + mipi_dsi_dcs_write_seq(dsi, 0xe6, 0x00);
> + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x04);
> + mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x50, 0x40);
> + mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x50, 0x00, 0x00, 0x00, 0x00);
> + mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x11);
> + mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x01, 0x00, 0x00, 0x00, 0x01);
> + mipi_dsi_dcs_write_seq(dsi, 0xf4, 0x00, 0x02);
> + mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x19);
> + mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x50, 0x42);
> + mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
> + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_COLUMN_ADDRESS, 0x00, 0x00, 0x04, 0x37);
> + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_PAGE_ADDRESS, 0x00, 0x00, 0x09, 0x23);
> +
> + 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);
> +
> + ret = mipi_dsi_dcs_set_display_on(dsi);
> + if (ret < 0) {
> + dev_err(dev, "Failed on set display on: %d\n", ret);
> + return ret;
> + }
> + msleep(20);
> +
> + return 0;
> +}
> +
> +static int visionox_r66451_off(struct visionox_r66451 *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(20);
> +
> + 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(120);
> +
> + return 0;
> +}
> +
> +static int visionox_r66451_prepare(struct drm_panel *panel)
> +{
> + struct visionox_r66451 *ctx = to_visionox_r66451(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)
> + return ret;
> +
> + visionox_r66451_reset(ctx);
> +
> + ret = visionox_r66451_on(ctx);
> + if (ret < 0) {
> + dev_err(dev, "Failed to initialize panel: %d\n", ret);
> + gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> + regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> + return ret;
> + }
> +
> + ctx->prepared = true;
> + return 0;
> +}
> +
> +static int visionox_r66451_unprepare(struct drm_panel *panel)
> +{
> + struct visionox_r66451 *ctx = to_visionox_r66451(panel);
> + struct device *dev = &ctx->dsi->dev;
> + int ret;
> +
> + if (!ctx->prepared)
> + return 0;
> +
> + ret = visionox_r66451_off(ctx);
> + if (ret < 0)
> + dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
> +
> + gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> + regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> +
> + ctx->prepared = false;
> + return 0;
> +}
> +
> +static const struct drm_display_mode visionox_r66451_mode = {
> + .clock = (1080 + 95 + 1 + 40) * (2340 + 25 + 1 + 4) * 120 / 1000,
> + .hdisplay = 1080,
> + .hsync_start = 1080 + 95,
> + .hsync_end = 1080 + 95 + 1,
> + .htotal = 1080 + 95 + 1 + 40,
> + .vdisplay = 2340,
> + .vsync_start = 2340 + 25,
> + .vsync_end = 2340 + 25 + 1,
> + .vtotal = 2340 + 25 + 1 + 4,
> + .width_mm = 0,
> + .height_mm = 0,
> +};
> +
> +static int visionox_r66451_enable(struct drm_panel *panel)
> +{
> + struct visionox_r66451 *ctx = to_visionox_r66451(panel);
> + struct mipi_dsi_device *dsi = ctx->dsi;
> + struct drm_dsc_picture_parameter_set pps;
> + int ret;
> +
> + if (ctx->enabled)
> + return 0;
> +
> + if (!dsi->dsc) {
> + dev_err(&dsi->dev, "DSC not attached to DSI\n");
> + return -ENODEV;
> + }
> +
> + drm_dsc_pps_payload_pack(&pps, dsi->dsc);
> + ret = mipi_dsi_picture_parameter_set(dsi, &pps);
> +
> + ctx->enabled = true;
> +
> + return 0;
> +}
> +
> +static int visionox_r66451_disable(struct drm_panel *panel)
> +{
> + struct visionox_r66451 *ctx = to_visionox_r66451(panel);
> +
> + ctx->enabled = false;
> +
> + return 0;
> +}
> +
> +static int visionox_r66451_get_modes(struct drm_panel *panel,
> + struct drm_connector *connector)
> +{
> + struct drm_display_mode *mode;
> +
> + mode = drm_mode_duplicate(connector->dev, &visionox_r66451_mode);
> + 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 visionox_r66451_funcs = {
> + .prepare = visionox_r66451_prepare,
> + .unprepare = visionox_r66451_unprepare,
> + .get_modes = visionox_r66451_get_modes,
> + .enable = visionox_r66451_enable,
> + .disable = visionox_r66451_disable,
> +};
> +
> +static int visionox_r66451_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(dsi, cpu_to_le16(brightness));
> +}
> +
> +static const struct backlight_ops visionox_r66451_bl_ops = {
> + .update_status = visionox_r66451_bl_update_status,
> +};
> +
> +static struct backlight_device *
> +visionox_r66451_create_backlight(struct mipi_dsi_device *dsi)
> +{
> + struct device *dev = &dsi->dev;
> + const struct backlight_properties props = {
> + .type = BACKLIGHT_RAW,
> + .brightness = 255,
> + .max_brightness = 4095,
> + };
> +
> + return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
> + &visionox_r66451_bl_ops, &props);
> +}
> +
> +static int visionox_r66451_probe(struct mipi_dsi_device *dsi)
> +{
> + struct device *dev = &dsi->dev;
> + struct visionox_r66451 *ctx;
> + struct drm_dsc_config *dsc;
> + int ret = 0;
> +
> + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
> + if (!ctx)
> + return -ENOMEM;
> +
> + dsc = devm_kzalloc(dev, sizeof(*dsc), GFP_KERNEL);
> + if (!dsc)
> + return -ENOMEM;
> +
> + /* Set DSC params */
> + dsc->dsc_version_major = 0x1;
> + dsc->dsc_version_minor = 0x2;
> +
> + dsc->slice_height = 20;
> + dsc->slice_width = 540;
> + dsc->slice_count = 2;
> + dsc->bits_per_component = 8;
> + dsc->bits_per_pixel = 0x8 << 4;
> + dsc->block_pred_enable = true;
> +
> + dsi->dsc = dsc;
> +
> + ctx->supplies[0].supply = "vddio";
> + ctx->supplies[1].supply = "vdd";
> +
> + ret = devm_regulator_bulk_get(&dsi->dev, ARRAY_SIZE(ctx->supplies),
> + ctx->supplies);
> +
> + if (ret < 0)
> + return ret;
> +
> + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
> + 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_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;
> +
> + drm_panel_init(&ctx->panel, dev, &visionox_r66451_funcs, DRM_MODE_CONNECTOR_DSI);
> + ctx->panel.backlight = visionox_r66451_create_backlight(dsi);
> + 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);
> +
> + 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;
> +}
> +
> +static void visionox_r66451_remove(struct mipi_dsi_device *dsi)
> +{
> + struct visionox_r66451 *ctx = mipi_dsi_get_drvdata(dsi);
> + int ret;
> +
> + ret = mipi_dsi_detach(dsi);
> + if (ret < 0)
> + dev_err(&dsi->dev, "Failed to detach DSI host: %d\n", ret);
> +
> + drm_panel_remove(&ctx->panel);
> +}
> +
> +static const struct of_device_id visionox_r66451_of_match[] = {
> + {.compatible = "visionox,r66451"},
> + { /*sentinel*/ }
> +};
> +MODULE_DEVICE_TABLE(of, visionox_r66451_of_match);
> +
> +static struct mipi_dsi_driver visionox_r66451_driver = {
> + .probe = visionox_r66451_probe,
> + .remove = visionox_r66451_remove,
> + .driver = {
> + .name = "panel-visionox-r66451",
> + .of_match_table = visionox_r66451_of_match,
> + },
> +};
> +
> +module_mipi_dsi_driver(visionox_r66451_driver);
> +
> +MODULE_AUTHOR("Jessica Zhang <quic_jesszhan@quicinc.com>");
> +MODULE_DESCRIPTION("Panel driver for the Visionox R66451 AMOLED DSI panel");
> +MODULE_LICENSE("GPL");
>
next prev parent reply other threads:[~2023-05-22 9:09 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-16 20:20 [PATCH 0/2] Add support for Visionox R66451 AMOLED DSI panel Jessica Zhang
2023-05-16 20:20 ` [PATCH 1/2] dt-bindings: display: panel: Add Visionox R66451 AMOLED DSI panel bindings Jessica Zhang
2023-05-17 8:12 ` Krzysztof Kozlowski
2023-05-21 10:30 ` Marijn Suijten
2023-05-22 9:05 ` Neil Armstrong
2023-05-22 14:51 ` Marijn Suijten
2023-05-26 7:42 ` Neil Armstrong
2023-05-29 12:05 ` Marijn Suijten
2023-05-16 20:20 ` [PATCH 2/2] drm/panel: Add driver for Visionox r66451 panel Jessica Zhang
2023-05-18 0:19 ` Dmitry Baryshkov
2023-05-18 22:17 ` Jessica Zhang
2023-05-18 22:37 ` Dmitry Baryshkov
2023-05-19 0:28 ` Jessica Zhang
2023-05-30 20:09 ` Jessica Zhang
2023-05-30 23:12 ` Dmitry Baryshkov
2023-05-31 17:45 ` Jessica Zhang
2023-05-21 10:28 ` Marijn Suijten
2023-05-23 20:33 ` Jessica Zhang
2023-05-25 22:28 ` Jessica Zhang
2023-05-26 7:32 ` Neil Armstrong
2023-05-29 12:09 ` Marijn Suijten
2023-05-30 17:43 ` Jessica Zhang
2023-05-22 9:10 ` Neil Armstrong
2023-05-22 13:47 ` Dmitry Baryshkov
2023-05-22 9:09 ` Neil Armstrong [this message]
2023-05-22 17:35 ` Jessica Zhang
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