Merge tag 'drm-misc-next-2022-04-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.19:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
  - atomic: Add atomic_print_state to private objects
  - edid: Constify the EDID parsing API, rework of the API
  - dma-buf: Add dma_resv_replace_fences, dma_resv_get_singleton, make
    dma_resv_excl_fence private
  - format: Support monochrome formats
  - fbdev: fixes for cfb_imageblit and sys_imageblit, pagelist
    corruption fix
  - selftests: several small fixes
  - ttm: Rework bulk move handling

Driver Changes:
  - Switch all relevant drivers to drm_mode_copy or drm_mode_duplicate
  - bridge: conversions to devm_drm_of_get_bridge and panel_bridge,
    autosuspend for analogix_dp, audio support for it66121, DSI to DPI
    support for tc358767, PLL fixes and I2C support for icn6211
  - bridge_connector: Enable HPD if supported
  - etnaviv: fencing improvements
  - gma500: GEM and GTT improvements, connector handling fixes
  - komeda: switch to plane reset helper
  - mediatek: MIPI DSI improvements
  - omapdrm: GEM improvements
  - panel: DT bindings fixes for st7735r, few fixes for ssd130x, new
    panels: ltk035c5444t, B133UAN01, NV3052C
  - qxl: Allow to run on arm64
  - sysfb: Kconfig rework, support for VESA graphic mode selection
  - vc4: Add a tracepoint for CL submissions, HDMI YUV output,
    HDMI and clock improvements
  - virtio: Remove restriction of non-zero blob_flags,
  - vmwgfx: support for CursorMob and CursorBypass 4, various
    improvements and small fixes

[airlied: fixup conflict with newvision panel callbacks]
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220407085940.pnflvjojs4qw4b77@houat

8 files changed, 551 insertions, 11 deletions

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index ddf5f38e8731..cc51ddeb54fd 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -284,6 +284,15 @@ config DRM_PANEL_NEC_NL8048HL11
 	  panel (found on the Zoom2/3/3630 SDP boards). To compile this driver
 	  as a module, choose M here.
 
+config DRM_PANEL_NEWVISION_NV3052C
+	tristate "NewVision NV3052C RGB/SPI panel"
+	depends on OF && SPI
+	depends on BACKLIGHT_CLASS_DEVICE
+	select DRM_MIPI_DBI
+	help
+	  Say Y here if you want to enable support for the panels built
+	  around the NewVision NV3052C display controller.
+
 config DRM_PANEL_NOVATEK_NT35510
 	tristate "Novatek NT35510 RGB panel driver"
 	depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 5740911f637c..42a7ab54234b 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829) += panel-leadtek-ltk500hd1829.o
 obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o
 obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
 obj-$(CONFIG_DRM_PANEL_NEC_NL8048HL11) += panel-nec-nl8048hl11.o
+obj-$(CONFIG_DRM_PANEL_NEWVISION_NV3052C) += panel-newvision-nv3052c.o
 obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35510) += panel-novatek-nt35510.o
 obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35560) += panel-novatek-nt35560.o
 obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35950) += panel-novatek-nt35950.o
diff --git a/drivers/gpu/drm/panel/panel-abt-y030xx067a.c b/drivers/gpu/drm/panel/panel-abt-y030xx067a.c
index ed626fdc08e8..1cc0f1d09684 100644
--- a/drivers/gpu/drm/panel/panel-abt-y030xx067a.c
+++ b/drivers/gpu/drm/panel/panel-abt-y030xx067a.c
@@ -140,7 +140,7 @@ static const struct reg_sequence y030xx067a_init_sequence[] = {
 	{ 0x03, REG03_VPOSITION(0x0a) },
 	{ 0x04, REG04_HPOSITION1(0xd2) },
 	{ 0x05, REG05_CLIP | REG05_NVM_VREFRESH | REG05_SLBRCHARGE(0x2) },
-	{ 0x06, REG06_XPSAVE | REG06_NT },
+	{ 0x06, REG06_NT },
 	{ 0x07, 0 },
 	{ 0x08, REG08_PANEL(0x1) | REG08_CLOCK_DIV(0x2) },
 	{ 0x09, REG09_SUB_BRIGHT_R(0x20) },
@@ -183,8 +183,6 @@ static int y030xx067a_prepare(struct drm_panel *panel)
 		goto err_disable_regulator;
 	}
 
-	msleep(120);
-
 	return 0;
 
 err_disable_regulator:
@@ -202,6 +200,29 @@ static int y030xx067a_unprepare(struct drm_panel *panel)
 	return 0;
 }
 
+static int y030xx067a_enable(struct drm_panel *panel)
+{
+	struct y030xx067a *priv = to_y030xx067a(panel);
+
+	regmap_set_bits(priv->map, 0x06, REG06_XPSAVE);
+
+	if (panel->backlight) {
+		/* Wait for the picture to be ready before enabling backlight */
+		msleep(120);
+	}
+
+	return 0;
+}
+
+static int y030xx067a_disable(struct drm_panel *panel)
+{
+	struct y030xx067a *priv = to_y030xx067a(panel);
+
+	regmap_clear_bits(priv->map, 0x06, REG06_XPSAVE);
+
+	return 0;
+}
+
 static int y030xx067a_get_modes(struct drm_panel *panel,
 				struct drm_connector *connector)
 {
@@ -239,6 +260,8 @@ static int y030xx067a_get_modes(struct drm_panel *panel,
 static const struct drm_panel_funcs y030xx067a_funcs = {
 	.prepare	= y030xx067a_prepare,
 	.unprepare	= y030xx067a_unprepare,
+	.enable		= y030xx067a_enable,
+	.disable	= y030xx067a_disable,
 	.get_modes	= y030xx067a_get_modes,
 };
 
@@ -246,6 +269,7 @@ static const struct regmap_config y030xx067a_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = 0x15,
+	.cache_type = REGCACHE_FLAT,
 };
 
 static int y030xx067a_probe(struct spi_device *spi)
diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c
index f7bfcf63d48e..1732b4f56e38 100644
--- a/drivers/gpu/drm/panel/panel-edp.c
+++ b/drivers/gpu/drm/panel/panel-edp.c
@@ -1847,6 +1847,7 @@ static const struct panel_delay delay_100_500_e200 = {
 static const struct edp_panel_entry edp_panels[] = {
 	EDP_PANEL_ENTRY('A', 'U', 'O', 0x405c, &auo_b116xak01.delay, "B116XAK01"),
 	EDP_PANEL_ENTRY('A', 'U', 'O', 0x615c, &delay_200_500_e50, "B116XAN06.1"),
+	EDP_PANEL_ENTRY('A', 'U', 'O', 0x8594, &delay_200_500_e50, "B133UAN01.0"),
 
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0786, &delay_200_500_p2e80, "NV116WHM-T01"),
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x07d1, &boe_nv133fhm_n61.delay, "NV133FHM-N61"),
@@ -1859,6 +1860,7 @@ static const struct edp_panel_entry edp_panels[] = {
 	EDP_PANEL_ENTRY('K', 'D', 'B', 0x0624, &kingdisplay_kd116n21_30nv_a010.delay, "116N21-30NV-A010"),
 	EDP_PANEL_ENTRY('K', 'D', 'B', 0x1120, &delay_200_500_e80_d50, "116N29-30NK-C007"),
 
+	EDP_PANEL_ENTRY('S', 'H', 'P', 0x1523, &sharp_lq140m1jw46.delay, "LQ140M1JW46"),
 	EDP_PANEL_ENTRY('S', 'H', 'P', 0x154c, &delay_200_500_p2e100, "LQ116M1JW10"),
 
 	EDP_PANEL_ENTRY('S', 'T', 'A', 0x0100, &delay_100_500_e200, "2081116HHD028001-51D"),
diff --git a/drivers/gpu/drm/panel/panel-innolux-ej030na.c b/drivers/gpu/drm/panel/panel-innolux-ej030na.c
index e3b1daa0cb72..b2b0ebc9e943 100644
--- a/drivers/gpu/drm/panel/panel-innolux-ej030na.c
+++ b/drivers/gpu/drm/panel/panel-innolux-ej030na.c
@@ -80,8 +80,6 @@ static const struct reg_sequence ej030na_init_sequence[] = {
 	{ 0x47, 0x08 },
 	{ 0x48, 0x0f },
 	{ 0x49, 0x0f },
-
-	{ 0x2b, 0x01 },
 };
 
 static int ej030na_prepare(struct drm_panel *panel)
@@ -109,8 +107,6 @@ static int ej030na_prepare(struct drm_panel *panel)
 		goto err_disable_regulator;
 	}
 
-	msleep(120);
-
 	return 0;
 
 err_disable_regulator:
@@ -128,6 +124,31 @@ static int ej030na_unprepare(struct drm_panel *panel)
 	return 0;
 }
 
+static int ej030na_enable(struct drm_panel *panel)
+{
+	struct ej030na *priv = to_ej030na(panel);
+
+	/* standby off */
+	regmap_write(priv->map, 0x2b, 0x01);
+
+	if (panel->backlight) {
+		/* Wait for the picture to be ready before enabling backlight */
+		msleep(120);
+	}
+
+	return 0;
+}
+
+static int ej030na_disable(struct drm_panel *panel)
+{
+	struct ej030na *priv = to_ej030na(panel);
+
+	/* standby on */
+	regmap_write(priv->map, 0x2b, 0x00);
+
+	return 0;
+}
+
 static int ej030na_get_modes(struct drm_panel *panel,
 			     struct drm_connector *connector)
 {
@@ -165,6 +186,8 @@ static int ej030na_get_modes(struct drm_panel *panel,
 static const struct drm_panel_funcs ej030na_funcs = {
 	.prepare	= ej030na_prepare,
 	.unprepare	= ej030na_unprepare,
+	.enable		= ej030na_enable,
+	.disable	= ej030na_disable,
 	.get_modes	= ej030na_get_modes,
 };
 
diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3052c.c b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
new file mode 100644
index 000000000000..cf078f0d3cd3
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
@@ -0,0 +1,482 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NewVision NV3052C IPS LCD panel driver
+ *
+ * Copyright (C) 2020, Paul Cercueil <paul@crapouillou.net>
+ * Copyright (C) 2022, Christophe Branchereau <cbranchereau@gmail.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/media-bus-format.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spi/spi.h>
+#include <video/mipi_display.h>
+#include <drm/drm_mipi_dbi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct nv3052c_panel_info {
+	const struct drm_display_mode *display_modes;
+	unsigned int num_modes;
+	u16 width_mm, height_mm;
+	u32 bus_format, bus_flags;
+};
+
+struct nv3052c {
+	struct device *dev;
+	struct drm_panel panel;
+	struct mipi_dbi dbi;
+	const struct nv3052c_panel_info *panel_info;
+	struct regulator *supply;
+	struct gpio_desc *reset_gpio;
+};
+
+struct nv3052c_reg {
+	u8 cmd;
+	u8 val;
+};
+
+static const struct nv3052c_reg nv3052c_panel_regs[] = {
+	{ 0xff, 0x30 },
+	{ 0xff, 0x52 },
+	{ 0xff, 0x01 },
+	{ 0xe3, 0x00 },
+	{ 0x40, 0x00 },
+	{ 0x03, 0x40 },
+	{ 0x04, 0x00 },
+	{ 0x05, 0x03 },
+	{ 0x08, 0x00 },
+	{ 0x09, 0x07 },
+	{ 0x0a, 0x01 },
+	{ 0x0b, 0x32 },
+	{ 0x0c, 0x32 },
+	{ 0x0d, 0x0b },
+	{ 0x0e, 0x00 },
+	{ 0x23, 0xa0 },
+	{ 0x24, 0x0c },
+	{ 0x25, 0x06 },
+	{ 0x26, 0x14 },
+	{ 0x27, 0x14 },
+	{ 0x38, 0xcc },
+	{ 0x39, 0xd7 },
+	{ 0x3a, 0x4a },
+	{ 0x28, 0x40 },
+	{ 0x29, 0x01 },
+	{ 0x2a, 0xdf },
+	{ 0x49, 0x3c },
+	{ 0x91, 0x77 },
+	{ 0x92, 0x77 },
+	{ 0xa0, 0x55 },
+	{ 0xa1, 0x50 },
+	{ 0xa4, 0x9c },
+	{ 0xa7, 0x02 },
+	{ 0xa8, 0x01 },
+	{ 0xa9, 0x01 },
+	{ 0xaa, 0xfc },
+	{ 0xab, 0x28 },
+	{ 0xac, 0x06 },
+	{ 0xad, 0x06 },
+	{ 0xae, 0x06 },
+	{ 0xaf, 0x03 },
+	{ 0xb0, 0x08 },
+	{ 0xb1, 0x26 },
+	{ 0xb2, 0x28 },
+	{ 0xb3, 0x28 },
+	{ 0xb4, 0x33 },
+	{ 0xb5, 0x08 },
+	{ 0xb6, 0x26 },
+	{ 0xb7, 0x08 },
+	{ 0xb8, 0x26 },
+	{ 0xf0, 0x00 },
+	{ 0xf6, 0xc0 },
+	{ 0xff, 0x30 },
+	{ 0xff, 0x52 },
+	{ 0xff, 0x02 },
+	{ 0xb0, 0x0b },
+	{ 0xb1, 0x16 },
+	{ 0xb2, 0x17 },
+	{ 0xb3, 0x2c },
+	{ 0xb4, 0x32 },
+	{ 0xb5, 0x3b },
+	{ 0xb6, 0x29 },
+	{ 0xb7, 0x40 },
+	{ 0xb8, 0x0d },
+	{ 0xb9, 0x05 },
+	{ 0xba, 0x12 },
+	{ 0xbb, 0x10 },
+	{ 0xbc, 0x12 },
+	{ 0xbd, 0x15 },
+	{ 0xbe, 0x19 },
+	{ 0xbf, 0x0e },
+	{ 0xc0, 0x16 },
+	{ 0xc1, 0x0a },
+	{ 0xd0, 0x0c },
+	{ 0xd1, 0x17 },
+	{ 0xd2, 0x14 },
+	{ 0xd3, 0x2e },
+	{ 0xd4, 0x32 },
+	{ 0xd5, 0x3c },
+	{ 0xd6, 0x22 },
+	{ 0xd7, 0x3d },
+	{ 0xd8, 0x0d },
+	{ 0xd9, 0x07 },
+	{ 0xda, 0x13 },
+	{ 0xdb, 0x13 },
+	{ 0xdc, 0x11 },
+	{ 0xdd, 0x15 },
+	{ 0xde, 0x19 },
+	{ 0xdf, 0x10 },
+	{ 0xe0, 0x17 },
+	{ 0xe1, 0x0a },
+	{ 0xff, 0x30 },
+	{ 0xff, 0x52 },
+	{ 0xff, 0x03 },
+	{ 0x00, 0x2a },
+	{ 0x01, 0x2a },
+	{ 0x02, 0x2a },
+	{ 0x03, 0x2a },
+	{ 0x04, 0x61 },
+	{ 0x05, 0x80 },
+	{ 0x06, 0xc7 },
+	{ 0x07, 0x01 },
+	{ 0x08, 0x03 },
+	{ 0x09, 0x04 },
+	{ 0x70, 0x22 },
+	{ 0x71, 0x80 },
+	{ 0x30, 0x2a },
+	{ 0x31, 0x2a },
+	{ 0x32, 0x2a },
+	{ 0x33, 0x2a },
+	{ 0x34, 0x61 },
+	{ 0x35, 0xc5 },
+	{ 0x36, 0x80 },
+	{ 0x37, 0x23 },
+	{ 0x40, 0x03 },
+	{ 0x41, 0x04 },
+	{ 0x42, 0x05 },
+	{ 0x43, 0x06 },
+	{ 0x44, 0x11 },
+	{ 0x45, 0xe8 },
+	{ 0x46, 0xe9 },
+	{ 0x47, 0x11 },
+	{ 0x48, 0xea },
+	{ 0x49, 0xeb },
+	{ 0x50, 0x07 },
+	{ 0x51, 0x08 },
+	{ 0x52, 0x09 },
+	{ 0x53, 0x0a },
+	{ 0x54, 0x11 },
+	{ 0x55, 0xec },
+	{ 0x56, 0xed },
+	{ 0x57, 0x11 },
+	{ 0x58, 0xef },
+	{ 0x59, 0xf0 },
+	{ 0xb1, 0x01 },
+	{ 0xb4, 0x15 },
+	{ 0xb5, 0x16 },
+	{ 0xb6, 0x09 },
+	{ 0xb7, 0x0f },
+	{ 0xb8, 0x0d },
+	{ 0xb9, 0x0b },
+	{ 0xba, 0x00 },
+	{ 0xc7, 0x02 },
+	{ 0xca, 0x17 },
+	{ 0xcb, 0x18 },
+	{ 0xcc, 0x0a },
+	{ 0xcd, 0x10 },
+	{ 0xce, 0x0e },
+	{ 0xcf, 0x0c },
+	{ 0xd0, 0x00 },
+	{ 0x81, 0x00 },
+	{ 0x84, 0x15 },
+	{ 0x85, 0x16 },
+	{ 0x86, 0x10 },
+	{ 0x87, 0x0a },
+	{ 0x88, 0x0c },
+	{ 0x89, 0x0e },
+	{ 0x8a, 0x02 },
+	{ 0x97, 0x00 },
+	{ 0x9a, 0x17 },
+	{ 0x9b, 0x18 },
+	{ 0x9c, 0x0f },
+	{ 0x9d, 0x09 },
+	{ 0x9e, 0x0b },
+	{ 0x9f, 0x0d },
+	{ 0xa0, 0x01 },
+	{ 0xff, 0x30 },
+	{ 0xff, 0x52 },
+	{ 0xff, 0x02 },
+	{ 0x01, 0x01 },
+	{ 0x02, 0xda },
+	{ 0x03, 0xba },
+	{ 0x04, 0xa8 },
+	{ 0x05, 0x9a },
+	{ 0x06, 0x70 },
+	{ 0x07, 0xff },
+	{ 0x08, 0x91 },
+	{ 0x09, 0x90 },
+	{ 0x0a, 0xff },
+	{ 0x0b, 0x8f },
+	{ 0x0c, 0x60 },
+	{ 0x0d, 0x58 },
+	{ 0x0e, 0x48 },
+	{ 0x0f, 0x38 },
+	{ 0x10, 0x2b },
+	{ 0xff, 0x30 },
+	{ 0xff, 0x52 },
+	{ 0xff, 0x00 },
+	{ 0x36, 0x0a },
+};
+
+static inline struct nv3052c *to_nv3052c(struct drm_panel *panel)
+{
+	return container_of(panel, struct nv3052c, panel);
+}
+
+static int nv3052c_prepare(struct drm_panel *panel)
+{
+	struct nv3052c *priv = to_nv3052c(panel);
+	struct mipi_dbi *dbi = &priv->dbi;
+	unsigned int i;
+	int err;
+
+	err = regulator_enable(priv->supply);
+	if (err) {
+		dev_err(priv->dev, "Failed to enable power supply: %d\n", err);
+		return err;
+	}
+
+	/* Reset the chip */
+	gpiod_set_value_cansleep(priv->reset_gpio, 1);
+	usleep_range(10, 1000);
+	gpiod_set_value_cansleep(priv->reset_gpio, 0);
+	usleep_range(5000, 20000);
+
+	for (i = 0; i < ARRAY_SIZE(nv3052c_panel_regs); i++) {
+		err = mipi_dbi_command(dbi, nv3052c_panel_regs[i].cmd,
+				       nv3052c_panel_regs[i].val);
+
+		if (err) {
+			dev_err(priv->dev, "Unable to set register: %d\n", err);
+			goto err_disable_regulator;
+		}
+	}
+
+	err = mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
+	if (err) {
+		dev_err(priv->dev, "Unable to exit sleep mode: %d\n", err);
+		goto err_disable_regulator;
+	}
+
+	return 0;
+
+err_disable_regulator:
+	regulator_disable(priv->supply);
+	return err;
+}
+
+static int nv3052c_unprepare(struct drm_panel *panel)
+{
+	struct nv3052c *priv = to_nv3052c(panel);
+	struct mipi_dbi *dbi = &priv->dbi;
+	int err;
+
+	err = mipi_dbi_command(dbi, MIPI_DCS_ENTER_SLEEP_MODE);
+	if (err)
+		dev_err(priv->dev, "Unable to enter sleep mode: %d\n", err);
+
+	gpiod_set_value_cansleep(priv->reset_gpio, 1);
+	regulator_disable(priv->supply);
+
+	return 0;
+}
+
+static int nv3052c_enable(struct drm_panel *panel)
+{
+	struct nv3052c *priv = to_nv3052c(panel);
+	struct mipi_dbi *dbi = &priv->dbi;
+	int err;
+
+	err = mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
+	if (err) {
+		dev_err(priv->dev, "Unable to enable display: %d\n", err);
+		return err;
+	}
+
+	if (panel->backlight) {
+		/* Wait for the picture to be ready before enabling backlight */
+		msleep(120);
+	}
+
+	return 0;
+}
+
+static int nv3052c_disable(struct drm_panel *panel)
+{
+	struct nv3052c *priv = to_nv3052c(panel);
+	struct mipi_dbi *dbi = &priv->dbi;
+	int err;
+
+	err = mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF);
+	if (err) {
+		dev_err(priv->dev, "Unable to disable display: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+static int nv3052c_get_modes(struct drm_panel *panel,
+			     struct drm_connector *connector)
+{
+	struct nv3052c *priv = to_nv3052c(panel);
+	const struct nv3052c_panel_info *panel_info = priv->panel_info;
+	struct drm_display_mode *mode;
+	unsigned int i;
+
+	for (i = 0; i < panel_info->num_modes; i++) {
+		mode = drm_mode_duplicate(connector->dev,
+					  &panel_info->display_modes[i]);
+		if (!mode)
+			return -ENOMEM;
+
+		drm_mode_set_name(mode);
+
+		mode->type = DRM_MODE_TYPE_DRIVER;
+		if (panel_info->num_modes == 1)
+			mode->type |= DRM_MODE_TYPE_PREFERRED;
+
+		drm_mode_probed_add(connector, mode);
+	}
+
+	connector->display_info.bpc = 8;
+	connector->display_info.width_mm = panel_info->width_mm;
+	connector->display_info.height_mm = panel_info->height_mm;
+
+	drm_display_info_set_bus_formats(&connector->display_info,
+					 &panel_info->bus_format, 1);
+	connector->display_info.bus_flags = panel_info->bus_flags;
+
+	return panel_info->num_modes;
+}
+
+static const struct drm_panel_funcs nv3052c_funcs = {
+	.prepare	= nv3052c_prepare,
+	.unprepare	= nv3052c_unprepare,
+	.enable		= nv3052c_enable,
+	.disable	= nv3052c_disable,
+	.get_modes	= nv3052c_get_modes,
+};
+
+static int nv3052c_probe(struct spi_device *spi)
+{
+	struct device *dev = &spi->dev;
+	struct nv3052c *priv;
+	int err;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = dev;
+
+	priv->panel_info = of_device_get_match_data(dev);
+	if (!priv->panel_info)
+		return -EINVAL;
+
+	priv->supply = devm_regulator_get(dev, "power");
+	if (IS_ERR(priv->supply))
+		return dev_err_probe(dev, PTR_ERR(priv->supply), "Failed to get power supply\n");
+
+	priv->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(priv->reset_gpio))
+		return dev_err_probe(dev, PTR_ERR(priv->reset_gpio), "Failed to get reset GPIO\n");
+
+	err = mipi_dbi_spi_init(spi, &priv->dbi, NULL);
+	if (err)
+		return dev_err_probe(dev, err, "MIPI DBI init failed\n");
+
+	priv->dbi.read_commands = NULL;
+
+	spi_set_drvdata(spi, priv);
+
+	drm_panel_init(&priv->panel, dev, &nv3052c_funcs,
+		       DRM_MODE_CONNECTOR_DPI);
+
+	err = drm_panel_of_backlight(&priv->panel);
+	if (err)
+		return dev_err_probe(dev, err, "Failed to attach backlight\n");
+
+	drm_panel_add(&priv->panel);
+
+	return 0;
+}
+
+static void nv3052c_remove(struct spi_device *spi)
+{
+	struct nv3052c *priv = spi_get_drvdata(spi);
+
+	drm_panel_remove(&priv->panel);
+	drm_panel_disable(&priv->panel);
+	drm_panel_unprepare(&priv->panel);
+}
+
+static const struct drm_display_mode ltk035c5444t_modes[] = {
+	{ /* 60 Hz */
+		.clock = 24000,
+		.hdisplay = 640,
+		.hsync_start = 640 + 96,
+		.hsync_end = 640 + 96 + 16,
+		.htotal = 640 + 96 + 16 + 48,
+		.vdisplay = 480,
+		.vsync_start = 480 + 5,
+		.vsync_end = 480 + 5 + 2,
+		.vtotal = 480 + 5 + 2 + 13,
+		.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+	},
+	{ /* 50 Hz */
+		.clock = 18000,
+		.hdisplay = 640,
+		.hsync_start = 640 + 39,
+		.hsync_end = 640 + 39 + 2,
+		.htotal = 640 + 39 + 2 + 39,
+		.vdisplay = 480,
+		.vsync_start = 480 + 5,
+		.vsync_end = 480 + 5 + 2,
+		.vtotal = 480 + 5 + 2 + 13,
+		.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+	},
+};
+
+static const struct nv3052c_panel_info ltk035c5444t_panel_info = {
+	.display_modes = ltk035c5444t_modes,
+	.num_modes = ARRAY_SIZE(ltk035c5444t_modes),
+	.width_mm = 77,
+	.height_mm = 64,
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
+};
+
+static const struct of_device_id nv3052c_of_match[] = {
+	{ .compatible = "leadtek,ltk035c5444t", .data = &ltk035c5444t_panel_info },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, nv3052c_of_match);
+
+static struct spi_driver nv3052c_driver = {
+	.driver = {
+		.name = "nv3052c",
+		.of_match_table = nv3052c_of_match,
+	},
+	.probe = nv3052c_probe,
+	.remove = nv3052c_remove,
+};
+module_spi_driver(nv3052c_driver);
+
+MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>");
+MODULE_AUTHOR("Christophe Branchereau <cbranchereau@gmail.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/panel/panel-truly-nt35597.c b/drivers/gpu/drm/panel/panel-truly-nt35597.c
index b24b92d93ea5..9ca5c7ff41d6 100644
--- a/drivers/gpu/drm/panel/panel-truly-nt35597.c
+++ b/drivers/gpu/drm/panel/panel-truly-nt35597.c
@@ -446,7 +446,7 @@ static int truly_nt35597_get_modes(struct drm_panel *panel,
 	const struct nt35597_config *config;
 
 	config = ctx->config;
-	mode = drm_mode_create(connector->dev);
+	mode = drm_mode_duplicate(connector->dev, config->dm);
 	if (!mode) {
 		dev_err(ctx->dev, "failed to create a new display mode\n");
 		return 0;
@@ -454,7 +454,6 @@ static int truly_nt35597_get_modes(struct drm_panel *panel,
 
 	connector->display_info.width_mm = config->width_mm;
 	connector->display_info.height_mm = config->height_mm;
-	drm_mode_copy(mode, config->dm);
 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
 	drm_mode_probed_add(connector, mode);
 
diff --git a/drivers/gpu/drm/panel/panel-visionox-rm69299.c b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
index eb43503ec97b..db2443ac81d3 100644
--- a/drivers/gpu/drm/panel/panel-visionox-rm69299.c
+++ b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
@@ -168,7 +168,8 @@ static int visionox_rm69299_get_modes(struct drm_panel *panel,
 	struct visionox_rm69299 *ctx = panel_to_ctx(panel);
 	struct drm_display_mode *mode;
 
-	mode = drm_mode_create(connector->dev);
+	mode = drm_mode_duplicate(connector->dev,
+				  &visionox_rm69299_1080x2248_60hz);
 	if (!mode) {
 		dev_err(ctx->panel.dev, "failed to create a new display mode\n");
 		return 0;
@@ -176,7 +177,6 @@ static int visionox_rm69299_get_modes(struct drm_panel *panel,
 
 	connector->display_info.width_mm = 74;
 	connector->display_info.height_mm = 131;
-	drm_mode_copy(mode, &visionox_rm69299_1080x2248_60hz);
 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
 	drm_mode_probed_add(connector, mode);