| Message ID | 1527126241-23491-1-git-send-email-abhinavk@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, May 23, 2018 at 06:44:00PM -0700, Abhinav Kumar wrote: > Add support for Truly NT35597 panel used > in MSM reference platforms. > > This panel supports both single DSI and dual DSI > modes. > > However, this patch series adds support only for > dual DSI mode. > > Changes in v3: > - Changes to commit text > - Separated the documentation from the driver itself > - Improved the documentation to cover the port information > - Formatting fixes and changes in delays in panel sequences > - Cleaned up probe function > > Signed-off-by: Archit Taneja <architt@codeaurora.org> > Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org> > --- > drivers/gpu/drm/panel/Kconfig | 8 + > drivers/gpu/drm/panel/Makefile | 1 + > drivers/gpu/drm/panel/panel-truly-nt35597.c | 588 ++++++++++++++++++++++++++++ > 3 files changed, 597 insertions(+) > create mode 100644 drivers/gpu/drm/panel/panel-truly-nt35597.c > > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > index 25682ff..2fcd9b1 100644 > --- a/drivers/gpu/drm/panel/Kconfig > +++ b/drivers/gpu/drm/panel/Kconfig > @@ -177,4 +177,12 @@ 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_TRULY_NT35597_WQXGA > + tristate "Truly WQXGA" > + depends on OF > + depends on DRM_MIPI_DSI > + select VIDEOMODE_HELPERS > + help > + Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI > + Video Mode panel > endmenu > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > index f26efc1..056ea93 100644 > --- a/drivers/gpu/drm/panel/Makefile > +++ b/drivers/gpu/drm/panel/Makefile > @@ -18,3 +18,4 @@ obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o > obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o > obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o > obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o > +obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o > diff --git a/drivers/gpu/drm/panel/panel-truly-nt35597.c b/drivers/gpu/drm/panel/panel-truly-nt35597.c > new file mode 100644 > index 0000000..529086b > --- /dev/null > +++ b/drivers/gpu/drm/panel/panel-truly-nt35597.c > @@ -0,0 +1,588 @@ > +// SPDX-License-Identifier: GPL-2.0 I know I prefer /* SPDX-License-Identifier: GPL-2.0 */ but I haven't seen a definitive rulling one way or the other. > +/* Copyright (c) 2018, The Linux Foundation. All rights reserved. > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 and > + * only version 2 as published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + */ One of the points of the SPDX tag is that you don't need to print the text of the license anymore - just add the tag and the copyright notice. > +#include <linux/gpio/consumer.h> > +#include <linux/of_graph.h> > +#include <linux/regulator/consumer.h> > +#include <linux/pinctrl/consumer.h> > + > +#include <video/mipi_display.h> > +#include <video/of_videomode.h> > +#include <video/videomode.h> > + > +#include <drm/drmP.h> > +#include <drm/drm_panel.h> > +#include <drm/drm_mipi_dsi.h> > + > +static const char * const regulator_names[] = { > + "vdda", > + "vdispp", > + "vdispn" > +}; > + > +static unsigned long regulator_enable_loads[] = { > + 62000, > + 100000, > + 100000 Missing a comma after the last entry. These should be const if you can make them so. > +}; > + > +static unsigned long regulator_disable_loads[] = { > + 80, > + 100, > + 100 Same. > +}; > + > +struct truly_wqxga { > + struct device *dev; > + struct drm_panel panel; > + > + struct regulator_bulk_data supplies[ARRAY_SIZE(regulator_names)]; > + > + struct gpio_desc *reset_gpio; > + struct gpio_desc *mode_gpio; > + > + struct backlight_device *backlight; > + struct videomode vm; > + > + struct mipi_dsi_device *dsi[2]; > + > + bool prepared; > + bool enabled; > +}; > + > +static inline struct truly_wqxga *panel_to_truly_wqxga(struct drm_panel *panel) > +{ > + return container_of(panel, struct truly_wqxga, panel); > +} Personal preference for me is to make these a macro since they take up less space, but I'll leave the final decision to the maintainer. > +static int truly_wqxga_power_on(struct truly_wqxga *ctx) > +{ > + int ret, i; > + > + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) { > + ret = regulator_set_load(ctx->supplies[i].consumer, > + regulator_enable_loads[i]); > + if (ret) > + return ret; > + } > * > + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); > + if (ret < 0) > + return ret; > + > + msleep(20); > + gpiod_set_value(ctx->reset_gpio, 1); > + msleep(20); > + gpiod_set_value(ctx->reset_gpio, 0); > + msleep(20); > + gpiod_set_value(ctx->reset_gpio, 1); > + msleep(50); > + > + return 0; > +} > + > +static int truly_wqxga_power_off(struct truly_wqxga *ctx) > +{ > + int ret, i; > + > + gpiod_set_value(ctx->reset_gpio, 0); > + > + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) { > + ret = regulator_set_load(ctx->supplies[i].consumer, > + regulator_disable_loads[i]); > + if (ret) > + return ret; > + } > + > + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); > +} > + > +static int truly_wqxga_disable(struct drm_panel *panel) > +{ > + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); > + > + if (!ctx->enabled) > + return 0; > + > + if (ctx->backlight) { > + ctx->backlight->props.power = FB_BLANK_POWERDOWN; > + backlight_update_status(ctx->backlight); > + } > + > + ctx->enabled = false; > + return 0; > +} > + > +static int truly_wqxga_unprepare(struct drm_panel *panel) > +{ > + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); > + struct mipi_dsi_device **dsis = ctx->dsi; > + int ret = 0, i; > + > + if (!ctx->prepared) > + return 0; > + > + dsis[0]->mode_flags = 0; > + dsis[1]->mode_flags = 0; > + > + for (i = 0; i < 2; i++) > + if (mipi_dsi_dcs_set_display_off(dsis[i]) < 0) > + ret = -ECOMM; > + > + msleep(120); > + > + for (i = 0; i < 2; i++) > + if (mipi_dsi_dcs_enter_sleep_mode(dsis[i]) < 0) > + ret = -ECOMM; > + > + truly_wqxga_power_off(ctx); > + > + ctx->prepared = false; > + return ret; > +} > + > +#define MAX_LEN 5 > +struct { > + u8 commands[MAX_LEN]; > + int size; > +} panel_cmds[] = { /* CMD2_P0 */ > + { { 0xff, 0x20 }, 2 }, > + { { 0xfb, 0x01 }, 2 }, > + { { 0x00, 0x01 }, 2 }, > + { { 0x01, 0x55 }, 2 }, > + { { 0x02, 0x45 }, 2 }, > + { { 0x05, 0x40 }, 2 }, > + { { 0x06, 0x19 }, 2 }, > + { { 0x07, 0x1e }, 2 }, > + { { 0x0b, 0x73 }, 2 }, > + { { 0x0c, 0x73 }, 2 }, > + { { 0x0e, 0xb0 }, 2 }, > + { { 0x0f, 0xae }, 2 }, > + { { 0x11, 0xb8 }, 2 }, > + { { 0x13, 0x00 }, 2 }, > + { { 0x58, 0x80 }, 2 }, > + { { 0x59, 0x01 }, 2 }, > + { { 0x5a, 0x00 }, 2 }, > + { { 0x5b, 0x01 }, 2 }, > + { { 0x5c, 0x80 }, 2 }, > + { { 0x5d, 0x81 }, 2 }, > + { { 0x5e, 0x00 }, 2 }, > + { { 0x5f, 0x01 }, 2 }, > + { { 0x72, 0x11 }, 2 }, > + { { 0x68, 0x03 }, 2 }, > + /* CMD2_P4 */ > + { { 0xFF, 0x24 }, 2 }, > + { { 0xFB, 0x01 }, 2 }, > + { { 0x00, 0x1C }, 2 }, > + { { 0x01, 0x0B }, 2 }, > + { { 0x02, 0x0C }, 2 }, > + { { 0x03, 0x01 }, 2 }, > + { { 0x04, 0x0F }, 2 }, > + { { 0x05, 0x10 }, 2 }, > + { { 0x06, 0x10 }, 2 }, > + { { 0x07, 0x10 }, 2 }, > + { { 0x08, 0x89 }, 2 }, > + { { 0x09, 0x8A }, 2 }, > + { { 0x0A, 0x13 }, 2 }, > + { { 0x0B, 0x13 }, 2 }, > + { { 0x0C, 0x15 }, 2 }, > + { { 0x0D, 0x15 }, 2 }, > + { { 0x0E, 0x17 }, 2 }, > + { { 0x0F, 0x17 }, 2 }, > + { { 0x10, 0x1C }, 2 }, > + { { 0x11, 0x0B }, 2 }, > + { { 0x12, 0x0C }, 2 }, > + { { 0x13, 0x01 }, 2 }, > + { { 0x14, 0x0F }, 2 }, > + { { 0x15, 0x10 }, 2 }, > + { { 0x16, 0x10 }, 2 }, > + { { 0x17, 0x10 }, 2 }, > + { { 0x18, 0x89 }, 2 }, > + { { 0x19, 0x8A }, 2 }, > + { { 0x1A, 0x13 }, 2 }, > + { { 0x1B, 0x13 }, 2 }, > + { { 0x1C, 0x15 }, 2 }, > + { { 0x1D, 0x15 }, 2 }, > + { { 0x1E, 0x17 }, 2 }, > + { { 0x1F, 0x17 }, 2 }, > + /* STV */ > + { { 0x20, 0x40 }, 2 }, > + { { 0x21, 0x01 }, 2 }, > + { { 0x22, 0x00 }, 2 }, > + { { 0x23, 0x40 }, 2 }, > + { { 0x24, 0x40 }, 2 }, > + { { 0x25, 0x6D }, 2 }, > + { { 0x26, 0x40 }, 2 }, > + { { 0x27, 0x40 }, 2 }, > + /* Vend */ > + { { 0xE0, 0x00 }, 2 }, > + { { 0xDC, 0x21 }, 2 }, > + { { 0xDD, 0x22 }, 2 }, > + { { 0xDE, 0x07 }, 2 }, > + { { 0xDF, 0x07 }, 2 }, > + { { 0xE3, 0x6D }, 2 }, > + { { 0xE1, 0x07 }, 2 }, > + { { 0xE2, 0x07 }, 2 }, > + /* UD */ > + { { 0x29, 0xD8 }, 2 }, > + { { 0x2A, 0x2A }, 2 }, > + /* CLK */ > + { { 0x4B, 0x03 }, 2 }, > + { { 0x4C, 0x11 }, 2 }, > + { { 0x4D, 0x10 }, 2 }, > + { { 0x4E, 0x01 }, 2 }, > + { { 0x4F, 0x01 }, 2 }, > + { { 0x50, 0x10 }, 2 }, > + { { 0x51, 0x00 }, 2 }, > + { { 0x52, 0x80 }, 2 }, > + { { 0x53, 0x00 }, 2 }, > + { { 0x56, 0x00 }, 2 }, > + { { 0x54, 0x07 }, 2 }, > + { { 0x58, 0x07 }, 2 }, > + { { 0x55, 0x25 }, 2 }, > + /* Reset XDONB */ > + { { 0x5B, 0x43 }, 2 }, > + { { 0x5C, 0x00 }, 2 }, > + { { 0x5F, 0x73 }, 2 }, > + { { 0x60, 0x73 }, 2 }, > + { { 0x63, 0x22 }, 2 }, > + { { 0x64, 0x00 }, 2 }, > + { { 0x67, 0x08 }, 2 }, > + { { 0x68, 0x04 }, 2 }, > + /* Resolution:1440x2560 */ > + { { 0x72, 0x02 }, 2 }, > + /* mux */ > + { { 0x7A, 0x80 }, 2 }, > + { { 0x7B, 0x91 }, 2 }, > + { { 0x7C, 0xD8 }, 2 }, > + { { 0x7D, 0x60 }, 2 }, > + { { 0x7F, 0x15 }, 2 }, > + { { 0x75, 0x15 }, 2 }, > + /* ABOFF */ > + { { 0xB3, 0xC0 }, 2 }, > + { { 0xB4, 0x00 }, 2 }, > + { { 0xB5, 0x00 }, 2 }, > + /* Source EQ */ > + { { 0x78, 0x00 }, 2 }, > + { { 0x79, 0x00 }, 2 }, > + { { 0x80, 0x00 }, 2 }, > + { { 0x83, 0x00 }, 2 }, > + /* FP BP */ > + { { 0x93, 0x0A }, 2 }, > + { { 0x94, 0x0A }, 2 }, > + /* Inversion Type */ > + { { 0x8A, 0x00 }, 2 }, > + { { 0x9B, 0xFF }, 2 }, > + /* IMGSWAP =1 @PortSwap=1 */ > + { { 0x9D, 0xB0 }, 2 }, > + { { 0x9F, 0x63 }, 2 }, > + { { 0x98, 0x10 }, 2 }, > + /* FRM */ > + { { 0xEC, 0x00 }, 2 }, > + /* CMD1 */ > + { { 0xFF, 0x10 }, 2 }, > + /* VBP+VSA=,VFP = 10H */ > + { { 0x3B, 0x03, 0x0A, 0x0A, }, 4 }, > + /* FTE on */ > + { { 0x35, 0x00 }, 2 }, > + /* EN_BK =1(auto black) */ > + { { 0xE5, 0x01 }, 2 }, > + /* CMD mode(10) VDO mode(03) */ > + { { 0xBB, 0x03 }, 2 }, > + /* Non Reload MTP */ > + { { 0xFB, 0x01 }, 2 }, > +}; > + > +static int truly_wqxga_prepare(struct drm_panel *panel) > +{ > + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); > + struct mipi_dsi_device **dsis = ctx->dsi; > + struct mipi_dsi_device *d; > + int ret, i, j; > + > + if (ctx->prepared) > + return 0; > + > + ret = truly_wqxga_power_on(ctx); > + if (ret < 0) > + return ret; > + > + dsis[0]->mode_flags |= MIPI_DSI_MODE_LPM; > + dsis[1]->mode_flags |= MIPI_DSI_MODE_LPM; > + > + for (j = 0; j < ARRAY_SIZE(panel_cmds); j++) { > + for (i = 0; i < 2; i++) { > + d = dsis[i]; d appears to be unused. > + ret = mipi_dsi_dcs_write_buffer(dsis[i], > + panel_cmds[j].commands, > + panel_cmds[j].size); > + if (ret < 0) { > + dev_err(ctx->dev, "failed to cmd no %d, err: %d\n", This is a fairly opaque error message. I think no is short for "number" but this could use a bit of rewrite. > + j, ret); > + return ret; > + } > + } > + } > + > + for (i = 0; i < 2; i++) > + if (mipi_dsi_dcs_exit_sleep_mode(dsis[i]) < 0) { > + dev_err(ctx->dev, "failed to exit sleep mode\n"); > + return -ECOMM; > + } I would prefer brackets for the for loop too. > + msleep(78); > + > + for (i = 0; i < 2; i++) > + if (mipi_dsi_dcs_set_display_on(dsis[i]) < 0) { > + dev_err(ctx->dev, "failed to send display on\n"); > + return -ECOMM; > + } > + msleep(78); > + > + ctx->prepared = true; > + > + return 0; > +} > + > +static int truly_wqxga_enable(struct drm_panel *panel) > +{ > + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); > + > + if (ctx->enabled) > + return 0; > + > + if (ctx->backlight) { > + ctx->backlight->props.power = FB_BLANK_UNBLANK; > + backlight_update_status(ctx->backlight); > + } > + ctx->enabled = true; > + > + return 0; > +} > + > +static int truly_wqxga_get_modes(struct drm_panel *panel) > +{ > + struct drm_connector *connector = panel->connector; > + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); > + struct drm_display_mode *mode; > + > + mode = drm_mode_create(connector->dev); > + if (!mode) { > + dev_err(ctx->dev, "failed to create a new display mode\n"); > + return 0; > + } > + > + drm_display_mode_from_videomode(&ctx->vm, mode); > + connector->display_info.width_mm = 74; > + connector->display_info.height_mm = 131; > + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; > + drm_mode_probed_add(connector, mode); > + > + return 1; > +} > + > +static const struct drm_panel_funcs truly_wqxga_drm_funcs = { > + .disable = truly_wqxga_disable, > + .unprepare = truly_wqxga_unprepare, > + .prepare = truly_wqxga_prepare, > + .enable = truly_wqxga_enable, > + .get_modes = truly_wqxga_get_modes, > +}; > + > +static int truly_wqxga_panel_add(struct truly_wqxga *ctx) > +{ > + struct device *dev = ctx->dev; > + int ret, i; > + > + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) > + ctx->supplies[i].supply = regulator_names[i]; > + > + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), > + ctx->supplies); > + if (ret < 0) > + return ret; > + > + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); > + if (IS_ERR(ctx->reset_gpio)) { > + dev_err(dev, "cannot get reset-gpios %ld\n", The name here doesn't match the gpio you are trying to get. > + PTR_ERR(ctx->reset_gpio)); > + return PTR_ERR(ctx->reset_gpio); > + } > + > + ctx->mode_gpio = devm_gpiod_get(dev, "mode", GPIOD_OUT_LOW); > + if (IS_ERR(ctx->mode_gpio)) { > + dev_err(dev, "cannot get mode gpio %ld\n", This is a little bit better. > + PTR_ERR(ctx->mode_gpio)); > + ctx->mode_gpio = NULL; Oops, you are setting this to null, and then returning PTR_ERR for the NULL, which will be 0. > + return PTR_ERR(ctx->mode_gpio); > + } > + > + /* dual port */ > + gpiod_set_value(ctx->mode_gpio, 0); > + > + ret = of_get_videomode(dev->of_node, &ctx->vm, 0); > + if (ret < 0) > + return ret; > + > + drm_panel_init(&ctx->panel); > + ctx->panel.dev = dev; > + ctx->panel.funcs = &truly_wqxga_drm_funcs; > + drm_panel_add(&ctx->panel); > + > + return 0; > +} > + > +static void truly_wqxga_panel_del(struct truly_wqxga *ctx) > +{ > + if (ctx->panel.dev) > + drm_panel_remove(&ctx->panel); > +} > + > +static int truly_wqxga_probe(struct mipi_dsi_device *dsi) > +{ > + struct device *dev = &dsi->dev; > + struct truly_wqxga *ctx; > + struct mipi_dsi_device *secondary; > + struct device_node *dsi1; > + struct mipi_dsi_host *dsi1_host; > + int ret = 0; > + const struct mipi_dsi_device_info info = {.type = "trulynt35597", > + .channel = 0, > + .node = NULL, > + }; > + > + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); > + > + if (!ctx) { > + ret = -ENOMEM; > + goto err_dsi_ctx; I say, just return -ENOMEM; > + } > + > + /* This device represents itself as one with > + * two input ports which are fed by the output > + * ports of the two DSI controllers . The DSI0 > + * is the master controller and has most of the > + * panel related info in its child node. > + */ > + > + dsi1 = of_graph_get_remote_node(dsi->dev.of_node, 1, -1); > + if (!dsi1) { > + dev_err(dev, "failed to get remote node for secondary DSI\n"); > + ret = -ENODEV; > + goto err_get_remote; > + } > + > + dsi1_host = of_find_mipi_dsi_host_by_node(dsi1); > + if (!dsi1_host) { > + dev_err(dev, "failed to find dsi host\n"); > + ret = -EPROBE_DEFER; > + goto err_host; > + } > + > + of_node_put(dsi1); > + > + /* register the second DSI device */ > + secondary = mipi_dsi_device_register_full(dsi1_host, &info); > + > + if (IS_ERR(secondary)) { > + dev_err(dev, "failed to create dsi device\n"); > + ret = PTR_ERR(dsi); > + goto err_dsi_device; > + } > + > + mipi_dsi_set_drvdata(dsi, ctx); > + > + ctx->dev = dev; > + ctx->dsi[0] = dsi; > + ctx->dsi[1] = secondary; > + > + ret = truly_wqxga_panel_add(ctx); > + if (ret) { > + dev_err(dev, "failed to add panel\n"); > + goto err_panel_add; > + } > + > + /* configure master DSI device */ > + dsi->lanes = 4; > + dsi->format = MIPI_DSI_FMT_RGB888; > + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS | > + MIPI_DSI_MODE_LPM; > + > + ret = mipi_dsi_attach(dsi); > + if (ret < 0) { > + dev_err(dev, "master dsi attach failed\n"); > + goto err_dsi_attach; > + } > + > + /* configure secondary DSI device */ > + secondary->lanes = 4; > + secondary->format = MIPI_DSI_FMT_RGB888; > + secondary->mode_flags = MIPI_DSI_MODE_VIDEO | > + MIPI_DSI_CLOCK_NON_CONTINUOUS | > + MIPI_DSI_MODE_LPM; > + > + ret = mipi_dsi_attach(secondary); > + if (ret < 0) { > + dev_err(dev, "mipi_dsi_attach on secondary failed\n"); > + goto err_dsi_attach_sec; > + } > + > + return 0; > + > +err_dsi_attach_sec: > + mipi_dsi_detach(ctx->dsi[0]); > +err_dsi_attach: > + truly_wqxga_panel_del(ctx); > +err_panel_add: > + mipi_dsi_device_unregister(secondary); > +err_dsi_device: > +err_host: > + of_node_put(dsi1); > +err_get_remote: > +err_dsi_ctx: > + return ret; > +} > + > +static int truly_wqxga_remove(struct mipi_dsi_device *dsi) > +{ > + struct truly_wqxga *ctx = mipi_dsi_get_drvdata(dsi); > + > + if (ctx->dsi[0]) > + mipi_dsi_detach(ctx->dsi[0]); > + if (ctx->dsi[1]) { > + mipi_dsi_detach(ctx->dsi[1]); > + mipi_dsi_device_unregister(ctx->dsi[1]); > + } > + truly_wqxga_panel_del(ctx); > + > + return 0; > +} > + > +static const struct of_device_id truly_wqxga_of_match[] = { > + { .compatible = "truly,nt35597", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, truly_wqxga_of_match); > + > +static struct mipi_dsi_driver truly_wqxga_driver = { > + .driver = { > + .name = "panel_truly_nt35597", > + .of_match_table = truly_wqxga_of_match, > + }, > + .probe = truly_wqxga_probe, > + .remove = truly_wqxga_remove, > +}; > +module_mipi_dsi_driver(truly_wqxga_driver); > + > +MODULE_DESCRIPTION("Truly NT35597 DSI Panel Driver"); > +MODULE_LICENSE("GPL v2"); > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel
Hi Jordan Thanks for the review. Will fix the ones listed below and upload V4. Abhinav On 2018-05-24 10:31, Jordan Crouse wrote: > On Wed, May 23, 2018 at 06:44:00PM -0700, Abhinav Kumar wrote: >> Add support for Truly NT35597 panel used >> in MSM reference platforms. >> >> This panel supports both single DSI and dual DSI >> modes. >> >> However, this patch series adds support only for >> dual DSI mode. >> >> Changes in v3: >> - Changes to commit text >> - Separated the documentation from the driver itself >> - Improved the documentation to cover the port information >> - Formatting fixes and changes in delays in panel sequences >> - Cleaned up probe function >> >> Signed-off-by: Archit Taneja <architt@codeaurora.org> >> Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org> >> --- >> drivers/gpu/drm/panel/Kconfig | 8 + >> drivers/gpu/drm/panel/Makefile | 1 + >> drivers/gpu/drm/panel/panel-truly-nt35597.c | 588 >> ++++++++++++++++++++++++++++ >> 3 files changed, 597 insertions(+) >> create mode 100644 drivers/gpu/drm/panel/panel-truly-nt35597.c >> >> diff --git a/drivers/gpu/drm/panel/Kconfig >> b/drivers/gpu/drm/panel/Kconfig >> index 25682ff..2fcd9b1 100644 >> --- a/drivers/gpu/drm/panel/Kconfig >> +++ b/drivers/gpu/drm/panel/Kconfig >> @@ -177,4 +177,12 @@ 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_TRULY_NT35597_WQXGA >> + tristate "Truly WQXGA" >> + depends on OF >> + depends on DRM_MIPI_DSI >> + select VIDEOMODE_HELPERS >> + help >> + Say Y here if you want to enable support for Truly NT35597 WQXGA >> Dual DSI >> + Video Mode panel >> endmenu >> diff --git a/drivers/gpu/drm/panel/Makefile >> b/drivers/gpu/drm/panel/Makefile >> index f26efc1..056ea93 100644 >> --- a/drivers/gpu/drm/panel/Makefile >> +++ b/drivers/gpu/drm/panel/Makefile >> @@ -18,3 +18,4 @@ obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += >> panel-seiko-43wvf1g.o >> obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += >> panel-sharp-lq101r1sx01.o >> obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += >> panel-sharp-ls043t1le01.o >> obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o >> +obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o >> diff --git a/drivers/gpu/drm/panel/panel-truly-nt35597.c >> b/drivers/gpu/drm/panel/panel-truly-nt35597.c >> new file mode 100644 >> index 0000000..529086b >> --- /dev/null >> +++ b/drivers/gpu/drm/panel/panel-truly-nt35597.c >> @@ -0,0 +1,588 @@ >> +// SPDX-License-Identifier: GPL-2.0 > > I know I prefer > > /* SPDX-License-Identifier: GPL-2.0 */ > > but I haven't seen a definitive rulling one way or the other. > >> +/* Copyright (c) 2018, The Linux Foundation. All rights reserved. >> + * >> + * This program is free software; you can redistribute it and/or >> modify >> + * it under the terms of the GNU General Public License version 2 and >> + * only version 2 as published by the Free Software Foundation. >> + * >> + * This program is distributed in the hope that it will be useful, >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >> + * GNU General Public License for more details. >> + * >> + */ > > One of the points of the SPDX tag is that you don't need to print the > text of > the license anymore - just add the tag and the copyright notice. > [Abhinav] Yes, will fix this in V4 >> +#include <linux/gpio/consumer.h> >> +#include <linux/of_graph.h> >> +#include <linux/regulator/consumer.h> >> +#include <linux/pinctrl/consumer.h> >> + >> +#include <video/mipi_display.h> >> +#include <video/of_videomode.h> >> +#include <video/videomode.h> >> + >> +#include <drm/drmP.h> >> +#include <drm/drm_panel.h> >> +#include <drm/drm_mipi_dsi.h> >> + >> +static const char * const regulator_names[] = { >> + "vdda", >> + "vdispp", >> + "vdispn" >> +}; >> + >> +static unsigned long regulator_enable_loads[] = { >> + 62000, >> + 100000, >> + 100000 > > Missing a comma after the last entry. These should be const if you can > make them > so. > [Abhinav] Yes, will fix this in V4 >> +}; >> + >> +static unsigned long regulator_disable_loads[] = { >> + 80, >> + 100, >> + 100 > > Same. > [Abhinav] Yes, will fix this in V4 >> +}; >> + >> +struct truly_wqxga { >> + struct device *dev; >> + struct drm_panel panel; >> + >> + struct regulator_bulk_data supplies[ARRAY_SIZE(regulator_names)]; >> + >> + struct gpio_desc *reset_gpio; >> + struct gpio_desc *mode_gpio; >> + >> + struct backlight_device *backlight; >> + struct videomode vm; >> + >> + struct mipi_dsi_device *dsi[2]; >> + >> + bool prepared; >> + bool enabled; >> +}; >> + >> +static inline struct truly_wqxga *panel_to_truly_wqxga(struct >> drm_panel *panel) >> +{ >> + return container_of(panel, struct truly_wqxga, panel); >> +} > > Personal preference for me is to make these a macro since they take up > less > space, but I'll leave the final decision to the maintainer. > [Abhinav] Other panels are doing the same. So I will leave this as it is unless others have a concern. >> +static int truly_wqxga_power_on(struct truly_wqxga *ctx) >> +{ >> + int ret, i; >> + >> + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) { >> + ret = regulator_set_load(ctx->supplies[i].consumer, >> + regulator_enable_loads[i]); >> + if (ret) >> + return ret; >> + } >> * >> + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), >> ctx->supplies); >> + if (ret < 0) >> + return ret; >> + >> + msleep(20); >> + gpiod_set_value(ctx->reset_gpio, 1); >> + msleep(20); >> + gpiod_set_value(ctx->reset_gpio, 0); >> + msleep(20); >> + gpiod_set_value(ctx->reset_gpio, 1); >> + msleep(50); >> + >> + return 0; >> +} >> + >> +static int truly_wqxga_power_off(struct truly_wqxga *ctx) >> +{ >> + int ret, i; >> + >> + gpiod_set_value(ctx->reset_gpio, 0); >> + >> + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) { >> + ret = regulator_set_load(ctx->supplies[i].consumer, >> + regulator_disable_loads[i]); >> + if (ret) >> + return ret; >> + } >> + >> + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), >> ctx->supplies); >> +} >> + >> +static int truly_wqxga_disable(struct drm_panel *panel) >> +{ >> + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); >> + >> + if (!ctx->enabled) >> + return 0; >> + >> + if (ctx->backlight) { >> + ctx->backlight->props.power = FB_BLANK_POWERDOWN; >> + backlight_update_status(ctx->backlight); >> + } >> + >> + ctx->enabled = false; >> + return 0; >> +} >> + >> +static int truly_wqxga_unprepare(struct drm_panel *panel) >> +{ >> + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); >> + struct mipi_dsi_device **dsis = ctx->dsi; >> + int ret = 0, i; >> + >> + if (!ctx->prepared) >> + return 0; >> + >> + dsis[0]->mode_flags = 0; >> + dsis[1]->mode_flags = 0; >> + >> + for (i = 0; i < 2; i++) >> + if (mipi_dsi_dcs_set_display_off(dsis[i]) < 0) >> + ret = -ECOMM; >> + >> + msleep(120); >> + >> + for (i = 0; i < 2; i++) >> + if (mipi_dsi_dcs_enter_sleep_mode(dsis[i]) < 0) >> + ret = -ECOMM; >> + >> + truly_wqxga_power_off(ctx); >> + >> + ctx->prepared = false; >> + return ret; >> +} >> + >> +#define MAX_LEN 5 >> +struct { >> + u8 commands[MAX_LEN]; >> + int size; >> +} panel_cmds[] = { /* CMD2_P0 */ >> + { { 0xff, 0x20 }, 2 }, >> + { { 0xfb, 0x01 }, 2 }, >> + { { 0x00, 0x01 }, 2 }, >> + { { 0x01, 0x55 }, 2 }, >> + { { 0x02, 0x45 }, 2 }, >> + { { 0x05, 0x40 }, 2 }, >> + { { 0x06, 0x19 }, 2 }, >> + { { 0x07, 0x1e }, 2 }, >> + { { 0x0b, 0x73 }, 2 }, >> + { { 0x0c, 0x73 }, 2 }, >> + { { 0x0e, 0xb0 }, 2 }, >> + { { 0x0f, 0xae }, 2 }, >> + { { 0x11, 0xb8 }, 2 }, >> + { { 0x13, 0x00 }, 2 }, >> + { { 0x58, 0x80 }, 2 }, >> + { { 0x59, 0x01 }, 2 }, >> + { { 0x5a, 0x00 }, 2 }, >> + { { 0x5b, 0x01 }, 2 }, >> + { { 0x5c, 0x80 }, 2 }, >> + { { 0x5d, 0x81 }, 2 }, >> + { { 0x5e, 0x00 }, 2 }, >> + { { 0x5f, 0x01 }, 2 }, >> + { { 0x72, 0x11 }, 2 }, >> + { { 0x68, 0x03 }, 2 }, >> + /* CMD2_P4 */ >> + { { 0xFF, 0x24 }, 2 }, >> + { { 0xFB, 0x01 }, 2 }, >> + { { 0x00, 0x1C }, 2 }, >> + { { 0x01, 0x0B }, 2 }, >> + { { 0x02, 0x0C }, 2 }, >> + { { 0x03, 0x01 }, 2 }, >> + { { 0x04, 0x0F }, 2 }, >> + { { 0x05, 0x10 }, 2 }, >> + { { 0x06, 0x10 }, 2 }, >> + { { 0x07, 0x10 }, 2 }, >> + { { 0x08, 0x89 }, 2 }, >> + { { 0x09, 0x8A }, 2 }, >> + { { 0x0A, 0x13 }, 2 }, >> + { { 0x0B, 0x13 }, 2 }, >> + { { 0x0C, 0x15 }, 2 }, >> + { { 0x0D, 0x15 }, 2 }, >> + { { 0x0E, 0x17 }, 2 }, >> + { { 0x0F, 0x17 }, 2 }, >> + { { 0x10, 0x1C }, 2 }, >> + { { 0x11, 0x0B }, 2 }, >> + { { 0x12, 0x0C }, 2 }, >> + { { 0x13, 0x01 }, 2 }, >> + { { 0x14, 0x0F }, 2 }, >> + { { 0x15, 0x10 }, 2 }, >> + { { 0x16, 0x10 }, 2 }, >> + { { 0x17, 0x10 }, 2 }, >> + { { 0x18, 0x89 }, 2 }, >> + { { 0x19, 0x8A }, 2 }, >> + { { 0x1A, 0x13 }, 2 }, >> + { { 0x1B, 0x13 }, 2 }, >> + { { 0x1C, 0x15 }, 2 }, >> + { { 0x1D, 0x15 }, 2 }, >> + { { 0x1E, 0x17 }, 2 }, >> + { { 0x1F, 0x17 }, 2 }, >> + /* STV */ >> + { { 0x20, 0x40 }, 2 }, >> + { { 0x21, 0x01 }, 2 }, >> + { { 0x22, 0x00 }, 2 }, >> + { { 0x23, 0x40 }, 2 }, >> + { { 0x24, 0x40 }, 2 }, >> + { { 0x25, 0x6D }, 2 }, >> + { { 0x26, 0x40 }, 2 }, >> + { { 0x27, 0x40 }, 2 }, >> + /* Vend */ >> + { { 0xE0, 0x00 }, 2 }, >> + { { 0xDC, 0x21 }, 2 }, >> + { { 0xDD, 0x22 }, 2 }, >> + { { 0xDE, 0x07 }, 2 }, >> + { { 0xDF, 0x07 }, 2 }, >> + { { 0xE3, 0x6D }, 2 }, >> + { { 0xE1, 0x07 }, 2 }, >> + { { 0xE2, 0x07 }, 2 }, >> + /* UD */ >> + { { 0x29, 0xD8 }, 2 }, >> + { { 0x2A, 0x2A }, 2 }, >> + /* CLK */ >> + { { 0x4B, 0x03 }, 2 }, >> + { { 0x4C, 0x11 }, 2 }, >> + { { 0x4D, 0x10 }, 2 }, >> + { { 0x4E, 0x01 }, 2 }, >> + { { 0x4F, 0x01 }, 2 }, >> + { { 0x50, 0x10 }, 2 }, >> + { { 0x51, 0x00 }, 2 }, >> + { { 0x52, 0x80 }, 2 }, >> + { { 0x53, 0x00 }, 2 }, >> + { { 0x56, 0x00 }, 2 }, >> + { { 0x54, 0x07 }, 2 }, >> + { { 0x58, 0x07 }, 2 }, >> + { { 0x55, 0x25 }, 2 }, >> + /* Reset XDONB */ >> + { { 0x5B, 0x43 }, 2 }, >> + { { 0x5C, 0x00 }, 2 }, >> + { { 0x5F, 0x73 }, 2 }, >> + { { 0x60, 0x73 }, 2 }, >> + { { 0x63, 0x22 }, 2 }, >> + { { 0x64, 0x00 }, 2 }, >> + { { 0x67, 0x08 }, 2 }, >> + { { 0x68, 0x04 }, 2 }, >> + /* Resolution:1440x2560 */ >> + { { 0x72, 0x02 }, 2 }, >> + /* mux */ >> + { { 0x7A, 0x80 }, 2 }, >> + { { 0x7B, 0x91 }, 2 }, >> + { { 0x7C, 0xD8 }, 2 }, >> + { { 0x7D, 0x60 }, 2 }, >> + { { 0x7F, 0x15 }, 2 }, >> + { { 0x75, 0x15 }, 2 }, >> + /* ABOFF */ >> + { { 0xB3, 0xC0 }, 2 }, >> + { { 0xB4, 0x00 }, 2 }, >> + { { 0xB5, 0x00 }, 2 }, >> + /* Source EQ */ >> + { { 0x78, 0x00 }, 2 }, >> + { { 0x79, 0x00 }, 2 }, >> + { { 0x80, 0x00 }, 2 }, >> + { { 0x83, 0x00 }, 2 }, >> + /* FP BP */ >> + { { 0x93, 0x0A }, 2 }, >> + { { 0x94, 0x0A }, 2 }, >> + /* Inversion Type */ >> + { { 0x8A, 0x00 }, 2 }, >> + { { 0x9B, 0xFF }, 2 }, >> + /* IMGSWAP =1 @PortSwap=1 */ >> + { { 0x9D, 0xB0 }, 2 }, >> + { { 0x9F, 0x63 }, 2 }, >> + { { 0x98, 0x10 }, 2 }, >> + /* FRM */ >> + { { 0xEC, 0x00 }, 2 }, >> + /* CMD1 */ >> + { { 0xFF, 0x10 }, 2 }, >> + /* VBP+VSA=,VFP = 10H */ >> + { { 0x3B, 0x03, 0x0A, 0x0A, }, 4 }, >> + /* FTE on */ >> + { { 0x35, 0x00 }, 2 }, >> + /* EN_BK =1(auto black) */ >> + { { 0xE5, 0x01 }, 2 }, >> + /* CMD mode(10) VDO mode(03) */ >> + { { 0xBB, 0x03 }, 2 }, >> + /* Non Reload MTP */ >> + { { 0xFB, 0x01 }, 2 }, >> +}; >> + >> +static int truly_wqxga_prepare(struct drm_panel *panel) >> +{ >> + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); >> + struct mipi_dsi_device **dsis = ctx->dsi; >> + struct mipi_dsi_device *d; >> + int ret, i, j; >> + >> + if (ctx->prepared) >> + return 0; >> + >> + ret = truly_wqxga_power_on(ctx); >> + if (ret < 0) >> + return ret; >> + >> + dsis[0]->mode_flags |= MIPI_DSI_MODE_LPM; >> + dsis[1]->mode_flags |= MIPI_DSI_MODE_LPM; >> + >> + for (j = 0; j < ARRAY_SIZE(panel_cmds); j++) { >> + for (i = 0; i < 2; i++) { >> + d = dsis[i]; > > d appears to be unused. [Abhinav] Thanks for catching this. Will fix this in V4. > >> + ret = mipi_dsi_dcs_write_buffer(dsis[i], >> + panel_cmds[j].commands, >> + panel_cmds[j].size); >> + if (ret < 0) { >> + dev_err(ctx->dev, "failed to cmd no %d, err: %d\n", > > This is a fairly opaque error message. I think no is short for > "number" but > this could use a bit of rewrite. [Abhinav] Yes, will fix this in V4 > >> + j, ret); >> + return ret; >> + } >> + } >> + } >> + >> + for (i = 0; i < 2; i++) >> + if (mipi_dsi_dcs_exit_sleep_mode(dsis[i]) < 0) { >> + dev_err(ctx->dev, "failed to exit sleep mode\n"); >> + return -ECOMM; >> + } > > I would prefer brackets for the for loop too. [Abhinav] Yes, will fix this in V4 > >> + msleep(78); >> + >> + for (i = 0; i < 2; i++) >> + if (mipi_dsi_dcs_set_display_on(dsis[i]) < 0) { >> + dev_err(ctx->dev, "failed to send display on\n"); >> + return -ECOMM; >> + } >> + msleep(78); >> + >> + ctx->prepared = true; >> + >> + return 0; >> +} >> + >> +static int truly_wqxga_enable(struct drm_panel *panel) >> +{ >> + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); >> + >> + if (ctx->enabled) >> + return 0; >> + >> + if (ctx->backlight) { >> + ctx->backlight->props.power = FB_BLANK_UNBLANK; >> + backlight_update_status(ctx->backlight); >> + } >> + ctx->enabled = true; >> + >> + return 0; >> +} >> + >> +static int truly_wqxga_get_modes(struct drm_panel *panel) >> +{ >> + struct drm_connector *connector = panel->connector; >> + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); >> + struct drm_display_mode *mode; >> + >> + mode = drm_mode_create(connector->dev); >> + if (!mode) { >> + dev_err(ctx->dev, "failed to create a new display mode\n"); >> + return 0; >> + } >> + >> + drm_display_mode_from_videomode(&ctx->vm, mode); >> + connector->display_info.width_mm = 74; >> + connector->display_info.height_mm = 131; >> + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; >> + drm_mode_probed_add(connector, mode); >> + >> + return 1; >> +} >> + >> +static const struct drm_panel_funcs truly_wqxga_drm_funcs = { >> + .disable = truly_wqxga_disable, >> + .unprepare = truly_wqxga_unprepare, >> + .prepare = truly_wqxga_prepare, >> + .enable = truly_wqxga_enable, >> + .get_modes = truly_wqxga_get_modes, >> +}; >> + >> +static int truly_wqxga_panel_add(struct truly_wqxga *ctx) >> +{ >> + struct device *dev = ctx->dev; >> + int ret, i; >> + >> + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) >> + ctx->supplies[i].supply = regulator_names[i]; >> + >> + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), >> + ctx->supplies); >> + if (ret < 0) >> + return ret; >> + >> + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); >> + if (IS_ERR(ctx->reset_gpio)) { >> + dev_err(dev, "cannot get reset-gpios %ld\n", > > The name here doesn't match the gpio you are trying to get. [Abhinav] Yes, will fix this in V4 > >> + PTR_ERR(ctx->reset_gpio)); >> + return PTR_ERR(ctx->reset_gpio); >> + } >> + >> + ctx->mode_gpio = devm_gpiod_get(dev, "mode", GPIOD_OUT_LOW); >> + if (IS_ERR(ctx->mode_gpio)) { >> + dev_err(dev, "cannot get mode gpio %ld\n", > > This is a little bit better. > >> + PTR_ERR(ctx->mode_gpio)); >> + ctx->mode_gpio = NULL; > > Oops, you are setting this to null, and then returning PTR_ERR for the > NULL, > which will be 0. [Abhinav] Yes, will fix this in V4 > >> + return PTR_ERR(ctx->mode_gpio); >> + } >> + >> + /* dual port */ >> + gpiod_set_value(ctx->mode_gpio, 0); >> + >> + ret = of_get_videomode(dev->of_node, &ctx->vm, 0); >> + if (ret < 0) >> + return ret; >> + >> + drm_panel_init(&ctx->panel); >> + ctx->panel.dev = dev; >> + ctx->panel.funcs = &truly_wqxga_drm_funcs; >> + drm_panel_add(&ctx->panel); >> + >> + return 0; >> +} >> + >> +static void truly_wqxga_panel_del(struct truly_wqxga *ctx) >> +{ >> + if (ctx->panel.dev) >> + drm_panel_remove(&ctx->panel); >> +} >> + >> +static int truly_wqxga_probe(struct mipi_dsi_device *dsi) >> +{ >> + struct device *dev = &dsi->dev; >> + struct truly_wqxga *ctx; >> + struct mipi_dsi_device *secondary; >> + struct device_node *dsi1; >> + struct mipi_dsi_host *dsi1_host; >> + int ret = 0; >> + const struct mipi_dsi_device_info info = {.type = "trulynt35597", >> + .channel = 0, >> + .node = NULL, >> + }; >> + >> + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); >> + >> + if (!ctx) { >> + ret = -ENOMEM; >> + goto err_dsi_ctx; > > I say, just return -ENOMEM; [Abhinav] Will fix this in V4. > >> + } >> + >> + /* This device represents itself as one with >> + * two input ports which are fed by the output >> + * ports of the two DSI controllers . The DSI0 >> + * is the master controller and has most of the >> + * panel related info in its child node. >> + */ >> + >> + dsi1 = of_graph_get_remote_node(dsi->dev.of_node, 1, -1); >> + if (!dsi1) { >> + dev_err(dev, "failed to get remote node for secondary DSI\n"); >> + ret = -ENODEV; >> + goto err_get_remote; >> + } >> + >> + dsi1_host = of_find_mipi_dsi_host_by_node(dsi1); >> + if (!dsi1_host) { >> + dev_err(dev, "failed to find dsi host\n"); >> + ret = -EPROBE_DEFER; >> + goto err_host; >> + } >> + >> + of_node_put(dsi1); >> + >> + /* register the second DSI device */ >> + secondary = mipi_dsi_device_register_full(dsi1_host, &info); >> + >> + if (IS_ERR(secondary)) { >> + dev_err(dev, "failed to create dsi device\n"); >> + ret = PTR_ERR(dsi); >> + goto err_dsi_device; >> + } >> + >> + mipi_dsi_set_drvdata(dsi, ctx); >> + >> + ctx->dev = dev; >> + ctx->dsi[0] = dsi; >> + ctx->dsi[1] = secondary; >> + >> + ret = truly_wqxga_panel_add(ctx); >> + if (ret) { >> + dev_err(dev, "failed to add panel\n"); >> + goto err_panel_add; >> + } >> + >> + /* configure master DSI device */ >> + dsi->lanes = 4; >> + dsi->format = MIPI_DSI_FMT_RGB888; >> + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | >> MIPI_DSI_CLOCK_NON_CONTINUOUS | >> + MIPI_DSI_MODE_LPM; >> + >> + ret = mipi_dsi_attach(dsi); >> + if (ret < 0) { >> + dev_err(dev, "master dsi attach failed\n"); >> + goto err_dsi_attach; >> + } >> + >> + /* configure secondary DSI device */ >> + secondary->lanes = 4; >> + secondary->format = MIPI_DSI_FMT_RGB888; >> + secondary->mode_flags = MIPI_DSI_MODE_VIDEO | >> + MIPI_DSI_CLOCK_NON_CONTINUOUS | >> + MIPI_DSI_MODE_LPM; >> + >> + ret = mipi_dsi_attach(secondary); >> + if (ret < 0) { >> + dev_err(dev, "mipi_dsi_attach on secondary failed\n"); >> + goto err_dsi_attach_sec; >> + } >> + >> + return 0; >> + >> +err_dsi_attach_sec: >> + mipi_dsi_detach(ctx->dsi[0]); >> +err_dsi_attach: >> + truly_wqxga_panel_del(ctx); >> +err_panel_add: >> + mipi_dsi_device_unregister(secondary); >> +err_dsi_device: >> +err_host: >> + of_node_put(dsi1); >> +err_get_remote: >> +err_dsi_ctx: >> + return ret; >> +} >> + >> +static int truly_wqxga_remove(struct mipi_dsi_device *dsi) >> +{ >> + struct truly_wqxga *ctx = mipi_dsi_get_drvdata(dsi); >> + >> + if (ctx->dsi[0]) >> + mipi_dsi_detach(ctx->dsi[0]); >> + if (ctx->dsi[1]) { >> + mipi_dsi_detach(ctx->dsi[1]); >> + mipi_dsi_device_unregister(ctx->dsi[1]); >> + } >> + truly_wqxga_panel_del(ctx); >> + >> + return 0; >> +} >> + >> +static const struct of_device_id truly_wqxga_of_match[] = { >> + { .compatible = "truly,nt35597", }, >> + { } >> +}; >> +MODULE_DEVICE_TABLE(of, truly_wqxga_of_match); >> + >> +static struct mipi_dsi_driver truly_wqxga_driver = { >> + .driver = { >> + .name = "panel_truly_nt35597", >> + .of_match_table = truly_wqxga_of_match, >> + }, >> + .probe = truly_wqxga_probe, >> + .remove = truly_wqxga_remove, >> +}; >> +module_mipi_dsi_driver(truly_wqxga_driver); >> + >> +MODULE_DESCRIPTION("Truly NT35597 DSI Panel Driver"); >> +MODULE_LICENSE("GPL v2"); >> -- >> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora >> Forum, >> a Linux Foundation Collaborative Project >> >> _______________________________________________ >> dri-devel mailing list >> dri-devel@lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 25682ff..2fcd9b1 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -177,4 +177,12 @@ 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_TRULY_NT35597_WQXGA + tristate "Truly WQXGA" + depends on OF + depends on DRM_MIPI_DSI + select VIDEOMODE_HELPERS + help + Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI + Video Mode panel endmenu diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index f26efc1..056ea93 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -18,3 +18,4 @@ obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o +obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o diff --git a/drivers/gpu/drm/panel/panel-truly-nt35597.c b/drivers/gpu/drm/panel/panel-truly-nt35597.c new file mode 100644 index 0000000..529086b --- /dev/null +++ b/drivers/gpu/drm/panel/panel-truly-nt35597.c @@ -0,0 +1,588 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2018, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/gpio/consumer.h> +#include <linux/of_graph.h> +#include <linux/regulator/consumer.h> +#include <linux/pinctrl/consumer.h> + +#include <video/mipi_display.h> +#include <video/of_videomode.h> +#include <video/videomode.h> + +#include <drm/drmP.h> +#include <drm/drm_panel.h> +#include <drm/drm_mipi_dsi.h> + +static const char * const regulator_names[] = { + "vdda", + "vdispp", + "vdispn" +}; + +static unsigned long regulator_enable_loads[] = { + 62000, + 100000, + 100000 +}; + +static unsigned long regulator_disable_loads[] = { + 80, + 100, + 100 +}; + +struct truly_wqxga { + struct device *dev; + struct drm_panel panel; + + struct regulator_bulk_data supplies[ARRAY_SIZE(regulator_names)]; + + struct gpio_desc *reset_gpio; + struct gpio_desc *mode_gpio; + + struct backlight_device *backlight; + struct videomode vm; + + struct mipi_dsi_device *dsi[2]; + + bool prepared; + bool enabled; +}; + +static inline struct truly_wqxga *panel_to_truly_wqxga(struct drm_panel *panel) +{ + return container_of(panel, struct truly_wqxga, panel); +} + +static int truly_wqxga_power_on(struct truly_wqxga *ctx) +{ + int ret, i; + + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) { + ret = regulator_set_load(ctx->supplies[i].consumer, + regulator_enable_loads[i]); + if (ret) + return ret; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret < 0) + return ret; + + msleep(20); + gpiod_set_value(ctx->reset_gpio, 1); + msleep(20); + gpiod_set_value(ctx->reset_gpio, 0); + msleep(20); + gpiod_set_value(ctx->reset_gpio, 1); + msleep(50); + + return 0; +} + +static int truly_wqxga_power_off(struct truly_wqxga *ctx) +{ + int ret, i; + + gpiod_set_value(ctx->reset_gpio, 0); + + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) { + ret = regulator_set_load(ctx->supplies[i].consumer, + regulator_disable_loads[i]); + if (ret) + return ret; + } + + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); +} + +static int truly_wqxga_disable(struct drm_panel *panel) +{ + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); + + if (!ctx->enabled) + return 0; + + if (ctx->backlight) { + ctx->backlight->props.power = FB_BLANK_POWERDOWN; + backlight_update_status(ctx->backlight); + } + + ctx->enabled = false; + return 0; +} + +static int truly_wqxga_unprepare(struct drm_panel *panel) +{ + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); + struct mipi_dsi_device **dsis = ctx->dsi; + int ret = 0, i; + + if (!ctx->prepared) + return 0; + + dsis[0]->mode_flags = 0; + dsis[1]->mode_flags = 0; + + for (i = 0; i < 2; i++) + if (mipi_dsi_dcs_set_display_off(dsis[i]) < 0) + ret = -ECOMM; + + msleep(120); + + for (i = 0; i < 2; i++) + if (mipi_dsi_dcs_enter_sleep_mode(dsis[i]) < 0) + ret = -ECOMM; + + truly_wqxga_power_off(ctx); + + ctx->prepared = false; + return ret; +} + +#define MAX_LEN 5 +struct { + u8 commands[MAX_LEN]; + int size; +} panel_cmds[] = { /* CMD2_P0 */ + { { 0xff, 0x20 }, 2 }, + { { 0xfb, 0x01 }, 2 }, + { { 0x00, 0x01 }, 2 }, + { { 0x01, 0x55 }, 2 }, + { { 0x02, 0x45 }, 2 }, + { { 0x05, 0x40 }, 2 }, + { { 0x06, 0x19 }, 2 }, + { { 0x07, 0x1e }, 2 }, + { { 0x0b, 0x73 }, 2 }, + { { 0x0c, 0x73 }, 2 }, + { { 0x0e, 0xb0 }, 2 }, + { { 0x0f, 0xae }, 2 }, + { { 0x11, 0xb8 }, 2 }, + { { 0x13, 0x00 }, 2 }, + { { 0x58, 0x80 }, 2 }, + { { 0x59, 0x01 }, 2 }, + { { 0x5a, 0x00 }, 2 }, + { { 0x5b, 0x01 }, 2 }, + { { 0x5c, 0x80 }, 2 }, + { { 0x5d, 0x81 }, 2 }, + { { 0x5e, 0x00 }, 2 }, + { { 0x5f, 0x01 }, 2 }, + { { 0x72, 0x11 }, 2 }, + { { 0x68, 0x03 }, 2 }, + /* CMD2_P4 */ + { { 0xFF, 0x24 }, 2 }, + { { 0xFB, 0x01 }, 2 }, + { { 0x00, 0x1C }, 2 }, + { { 0x01, 0x0B }, 2 }, + { { 0x02, 0x0C }, 2 }, + { { 0x03, 0x01 }, 2 }, + { { 0x04, 0x0F }, 2 }, + { { 0x05, 0x10 }, 2 }, + { { 0x06, 0x10 }, 2 }, + { { 0x07, 0x10 }, 2 }, + { { 0x08, 0x89 }, 2 }, + { { 0x09, 0x8A }, 2 }, + { { 0x0A, 0x13 }, 2 }, + { { 0x0B, 0x13 }, 2 }, + { { 0x0C, 0x15 }, 2 }, + { { 0x0D, 0x15 }, 2 }, + { { 0x0E, 0x17 }, 2 }, + { { 0x0F, 0x17 }, 2 }, + { { 0x10, 0x1C }, 2 }, + { { 0x11, 0x0B }, 2 }, + { { 0x12, 0x0C }, 2 }, + { { 0x13, 0x01 }, 2 }, + { { 0x14, 0x0F }, 2 }, + { { 0x15, 0x10 }, 2 }, + { { 0x16, 0x10 }, 2 }, + { { 0x17, 0x10 }, 2 }, + { { 0x18, 0x89 }, 2 }, + { { 0x19, 0x8A }, 2 }, + { { 0x1A, 0x13 }, 2 }, + { { 0x1B, 0x13 }, 2 }, + { { 0x1C, 0x15 }, 2 }, + { { 0x1D, 0x15 }, 2 }, + { { 0x1E, 0x17 }, 2 }, + { { 0x1F, 0x17 }, 2 }, + /* STV */ + { { 0x20, 0x40 }, 2 }, + { { 0x21, 0x01 }, 2 }, + { { 0x22, 0x00 }, 2 }, + { { 0x23, 0x40 }, 2 }, + { { 0x24, 0x40 }, 2 }, + { { 0x25, 0x6D }, 2 }, + { { 0x26, 0x40 }, 2 }, + { { 0x27, 0x40 }, 2 }, + /* Vend */ + { { 0xE0, 0x00 }, 2 }, + { { 0xDC, 0x21 }, 2 }, + { { 0xDD, 0x22 }, 2 }, + { { 0xDE, 0x07 }, 2 }, + { { 0xDF, 0x07 }, 2 }, + { { 0xE3, 0x6D }, 2 }, + { { 0xE1, 0x07 }, 2 }, + { { 0xE2, 0x07 }, 2 }, + /* UD */ + { { 0x29, 0xD8 }, 2 }, + { { 0x2A, 0x2A }, 2 }, + /* CLK */ + { { 0x4B, 0x03 }, 2 }, + { { 0x4C, 0x11 }, 2 }, + { { 0x4D, 0x10 }, 2 }, + { { 0x4E, 0x01 }, 2 }, + { { 0x4F, 0x01 }, 2 }, + { { 0x50, 0x10 }, 2 }, + { { 0x51, 0x00 }, 2 }, + { { 0x52, 0x80 }, 2 }, + { { 0x53, 0x00 }, 2 }, + { { 0x56, 0x00 }, 2 }, + { { 0x54, 0x07 }, 2 }, + { { 0x58, 0x07 }, 2 }, + { { 0x55, 0x25 }, 2 }, + /* Reset XDONB */ + { { 0x5B, 0x43 }, 2 }, + { { 0x5C, 0x00 }, 2 }, + { { 0x5F, 0x73 }, 2 }, + { { 0x60, 0x73 }, 2 }, + { { 0x63, 0x22 }, 2 }, + { { 0x64, 0x00 }, 2 }, + { { 0x67, 0x08 }, 2 }, + { { 0x68, 0x04 }, 2 }, + /* Resolution:1440x2560 */ + { { 0x72, 0x02 }, 2 }, + /* mux */ + { { 0x7A, 0x80 }, 2 }, + { { 0x7B, 0x91 }, 2 }, + { { 0x7C, 0xD8 }, 2 }, + { { 0x7D, 0x60 }, 2 }, + { { 0x7F, 0x15 }, 2 }, + { { 0x75, 0x15 }, 2 }, + /* ABOFF */ + { { 0xB3, 0xC0 }, 2 }, + { { 0xB4, 0x00 }, 2 }, + { { 0xB5, 0x00 }, 2 }, + /* Source EQ */ + { { 0x78, 0x00 }, 2 }, + { { 0x79, 0x00 }, 2 }, + { { 0x80, 0x00 }, 2 }, + { { 0x83, 0x00 }, 2 }, + /* FP BP */ + { { 0x93, 0x0A }, 2 }, + { { 0x94, 0x0A }, 2 }, + /* Inversion Type */ + { { 0x8A, 0x00 }, 2 }, + { { 0x9B, 0xFF }, 2 }, + /* IMGSWAP =1 @PortSwap=1 */ + { { 0x9D, 0xB0 }, 2 }, + { { 0x9F, 0x63 }, 2 }, + { { 0x98, 0x10 }, 2 }, + /* FRM */ + { { 0xEC, 0x00 }, 2 }, + /* CMD1 */ + { { 0xFF, 0x10 }, 2 }, + /* VBP+VSA=,VFP = 10H */ + { { 0x3B, 0x03, 0x0A, 0x0A, }, 4 }, + /* FTE on */ + { { 0x35, 0x00 }, 2 }, + /* EN_BK =1(auto black) */ + { { 0xE5, 0x01 }, 2 }, + /* CMD mode(10) VDO mode(03) */ + { { 0xBB, 0x03 }, 2 }, + /* Non Reload MTP */ + { { 0xFB, 0x01 }, 2 }, +}; + +static int truly_wqxga_prepare(struct drm_panel *panel) +{ + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); + struct mipi_dsi_device **dsis = ctx->dsi; + struct mipi_dsi_device *d; + int ret, i, j; + + if (ctx->prepared) + return 0; + + ret = truly_wqxga_power_on(ctx); + if (ret < 0) + return ret; + + dsis[0]->mode_flags |= MIPI_DSI_MODE_LPM; + dsis[1]->mode_flags |= MIPI_DSI_MODE_LPM; + + for (j = 0; j < ARRAY_SIZE(panel_cmds); j++) { + for (i = 0; i < 2; i++) { + d = dsis[i]; + ret = mipi_dsi_dcs_write_buffer(dsis[i], + panel_cmds[j].commands, + panel_cmds[j].size); + if (ret < 0) { + dev_err(ctx->dev, "failed to cmd no %d, err: %d\n", + j, ret); + return ret; + } + } + } + + for (i = 0; i < 2; i++) + if (mipi_dsi_dcs_exit_sleep_mode(dsis[i]) < 0) { + dev_err(ctx->dev, "failed to exit sleep mode\n"); + return -ECOMM; + } + msleep(78); + + for (i = 0; i < 2; i++) + if (mipi_dsi_dcs_set_display_on(dsis[i]) < 0) { + dev_err(ctx->dev, "failed to send display on\n"); + return -ECOMM; + } + msleep(78); + + ctx->prepared = true; + + return 0; +} + +static int truly_wqxga_enable(struct drm_panel *panel) +{ + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); + + if (ctx->enabled) + return 0; + + if (ctx->backlight) { + ctx->backlight->props.power = FB_BLANK_UNBLANK; + backlight_update_status(ctx->backlight); + } + ctx->enabled = true; + + return 0; +} + +static int truly_wqxga_get_modes(struct drm_panel *panel) +{ + struct drm_connector *connector = panel->connector; + struct truly_wqxga *ctx = panel_to_truly_wqxga(panel); + struct drm_display_mode *mode; + + mode = drm_mode_create(connector->dev); + if (!mode) { + dev_err(ctx->dev, "failed to create a new display mode\n"); + return 0; + } + + drm_display_mode_from_videomode(&ctx->vm, mode); + connector->display_info.width_mm = 74; + connector->display_info.height_mm = 131; + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(connector, mode); + + return 1; +} + +static const struct drm_panel_funcs truly_wqxga_drm_funcs = { + .disable = truly_wqxga_disable, + .unprepare = truly_wqxga_unprepare, + .prepare = truly_wqxga_prepare, + .enable = truly_wqxga_enable, + .get_modes = truly_wqxga_get_modes, +}; + +static int truly_wqxga_panel_add(struct truly_wqxga *ctx) +{ + struct device *dev = ctx->dev; + int ret, i; + + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) + ctx->supplies[i].supply = regulator_names[i]; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), + ctx->supplies); + if (ret < 0) + return ret; + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(ctx->reset_gpio)) { + dev_err(dev, "cannot get reset-gpios %ld\n", + PTR_ERR(ctx->reset_gpio)); + return PTR_ERR(ctx->reset_gpio); + } + + ctx->mode_gpio = devm_gpiod_get(dev, "mode", GPIOD_OUT_LOW); + if (IS_ERR(ctx->mode_gpio)) { + dev_err(dev, "cannot get mode gpio %ld\n", + PTR_ERR(ctx->mode_gpio)); + ctx->mode_gpio = NULL; + return PTR_ERR(ctx->mode_gpio); + } + + /* dual port */ + gpiod_set_value(ctx->mode_gpio, 0); + + ret = of_get_videomode(dev->of_node, &ctx->vm, 0); + if (ret < 0) + return ret; + + drm_panel_init(&ctx->panel); + ctx->panel.dev = dev; + ctx->panel.funcs = &truly_wqxga_drm_funcs; + drm_panel_add(&ctx->panel); + + return 0; +} + +static void truly_wqxga_panel_del(struct truly_wqxga *ctx) +{ + if (ctx->panel.dev) + drm_panel_remove(&ctx->panel); +} + +static int truly_wqxga_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct truly_wqxga *ctx; + struct mipi_dsi_device *secondary; + struct device_node *dsi1; + struct mipi_dsi_host *dsi1_host; + int ret = 0; + const struct mipi_dsi_device_info info = {.type = "trulynt35597", + .channel = 0, + .node = NULL, + }; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + + if (!ctx) { + ret = -ENOMEM; + goto err_dsi_ctx; + } + + /* This device represents itself as one with + * two input ports which are fed by the output + * ports of the two DSI controllers . The DSI0 + * is the master controller and has most of the + * panel related info in its child node. + */ + + dsi1 = of_graph_get_remote_node(dsi->dev.of_node, 1, -1); + if (!dsi1) { + dev_err(dev, "failed to get remote node for secondary DSI\n"); + ret = -ENODEV; + goto err_get_remote; + } + + dsi1_host = of_find_mipi_dsi_host_by_node(dsi1); + if (!dsi1_host) { + dev_err(dev, "failed to find dsi host\n"); + ret = -EPROBE_DEFER; + goto err_host; + } + + of_node_put(dsi1); + + /* register the second DSI device */ + secondary = mipi_dsi_device_register_full(dsi1_host, &info); + + if (IS_ERR(secondary)) { + dev_err(dev, "failed to create dsi device\n"); + ret = PTR_ERR(dsi); + goto err_dsi_device; + } + + mipi_dsi_set_drvdata(dsi, ctx); + + ctx->dev = dev; + ctx->dsi[0] = dsi; + ctx->dsi[1] = secondary; + + ret = truly_wqxga_panel_add(ctx); + if (ret) { + dev_err(dev, "failed to add panel\n"); + goto err_panel_add; + } + + /* configure master DSI device */ + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS | + MIPI_DSI_MODE_LPM; + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err(dev, "master dsi attach failed\n"); + goto err_dsi_attach; + } + + /* configure secondary DSI device */ + secondary->lanes = 4; + secondary->format = MIPI_DSI_FMT_RGB888; + secondary->mode_flags = MIPI_DSI_MODE_VIDEO | + MIPI_DSI_CLOCK_NON_CONTINUOUS | + MIPI_DSI_MODE_LPM; + + ret = mipi_dsi_attach(secondary); + if (ret < 0) { + dev_err(dev, "mipi_dsi_attach on secondary failed\n"); + goto err_dsi_attach_sec; + } + + return 0; + +err_dsi_attach_sec: + mipi_dsi_detach(ctx->dsi[0]); +err_dsi_attach: + truly_wqxga_panel_del(ctx); +err_panel_add: + mipi_dsi_device_unregister(secondary); +err_dsi_device: +err_host: + of_node_put(dsi1); +err_get_remote: +err_dsi_ctx: + return ret; +} + +static int truly_wqxga_remove(struct mipi_dsi_device *dsi) +{ + struct truly_wqxga *ctx = mipi_dsi_get_drvdata(dsi); + + if (ctx->dsi[0]) + mipi_dsi_detach(ctx->dsi[0]); + if (ctx->dsi[1]) { + mipi_dsi_detach(ctx->dsi[1]); + mipi_dsi_device_unregister(ctx->dsi[1]); + } + truly_wqxga_panel_del(ctx); + + return 0; +} + +static const struct of_device_id truly_wqxga_of_match[] = { + { .compatible = "truly,nt35597", }, + { } +}; +MODULE_DEVICE_TABLE(of, truly_wqxga_of_match); + +static struct mipi_dsi_driver truly_wqxga_driver = { + .driver = { + .name = "panel_truly_nt35597", + .of_match_table = truly_wqxga_of_match, + }, + .probe = truly_wqxga_probe, + .remove = truly_wqxga_remove, +}; +module_mipi_dsi_driver(truly_wqxga_driver); + +MODULE_DESCRIPTION("Truly NT35597 DSI Panel Driver"); +MODULE_LICENSE("GPL v2");