* [PATCH v2 2/2] drm/panel: Add support for Raydium RM68200 panel driver
2018-03-02 15:32 [PATCH v2 0/2] drm/panel: Add support for Raydium RM68200 panel Philippe Cornu
2018-03-02 15:32 ` [PATCH v2 1/2] dt-bindings/display/panel: Add support for Raydium rm68200 dsi panel Philippe Cornu
@ 2018-03-02 15:32 ` Philippe Cornu
2018-03-12 8:04 ` [PATCH v2 0/2] drm/panel: Add support for Raydium RM68200 panel Thierry Reding
2 siblings, 0 replies; 5+ messages in thread
From: Philippe Cornu @ 2018-03-02 15:32 UTC (permalink / raw)
To: Thierry Reding, David Airlie, Rob Herring, Mark Rutland,
dri-devel, devicetree, linux-kernel
Cc: Alexandre Torgue, Philippe Cornu, Yannick Fertre, Vincent Abriou
This patch adds Raydium Semiconductor Corporation RM68200
5.5" 720x1280 TFT LCD panel driver (MIPI-DSI video mode).
Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
---
drivers/gpu/drm/panel/Kconfig | 8 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-raydium-rm68200.c | 437 ++++++++++++++++++++++++++
3 files changed, 446 insertions(+)
create mode 100755 drivers/gpu/drm/panel/panel-raydium-rm68200.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 988048ebcc22..a30eb7a2f8e2 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -108,6 +108,14 @@ config DRM_PANEL_RASPBERRYPI_TOUCHSCREEN
Pi 7" Touchscreen. To compile this driver as a module,
choose M here.
+config DRM_PANEL_RAYDIUM_RM68200
+ tristate "Raydium RM68200 720x1280 dsi video mode panel"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ help
+ Say Y here if you want to enable support for Raydium RM68200
+ 720x1280 dsi video mode panel
+
config DRM_PANEL_SAMSUNG_S6E3HA2
tristate "Samsung S6E3HA2 DSI video mode panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 3d2a88d0e965..f26efc11d746 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o
obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o
obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) += panel-raspberrypi-touchscreen.o
+obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03) += panel-samsung-s6e63j0x03.o
diff --git a/drivers/gpu/drm/panel/panel-raydium-rm68200.c b/drivers/gpu/drm/panel/panel-raydium-rm68200.c
new file mode 100755
index 000000000000..35d75148ca08
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-raydium-rm68200.c
@@ -0,0 +1,437 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) STMicroelectronics SA 2017
+ *
+ * Authors: Philippe Cornu <philippe.cornu@st.com>
+ * Yannick Fertre <yannick.fertre@st.com>
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_panel.h>
+#include <linux/backlight.h>
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
+#include <video/mipi_display.h>
+
+/*** Manufacturer Command Set ***/
+#define MCS_CMD_MODE_SW 0xFE /* CMD Mode Switch */
+#define MCS_CMD1_UCS 0x00 /* User Command Set (UCS = CMD1) */
+#define MCS_CMD2_P0 0x01 /* Manufacture Command Set Page0 (CMD2 P0) */
+#define MCS_CMD2_P1 0x02 /* Manufacture Command Set Page1 (CMD2 P1) */
+#define MCS_CMD2_P2 0x03 /* Manufacture Command Set Page2 (CMD2 P2) */
+#define MCS_CMD2_P3 0x04 /* Manufacture Command Set Page3 (CMD2 P3) */
+
+/* CMD2 P0 commands (Display Options and Power) */
+#define MCS_STBCTR 0x12 /* TE1 Output Setting Zig-Zag Connection */
+#define MCS_SGOPCTR 0x16 /* Source Bias Current */
+#define MCS_SDCTR 0x1A /* Source Output Delay Time */
+#define MCS_INVCTR 0x1B /* Inversion Type */
+#define MCS_EXT_PWR_IC 0x24 /* External PWR IC Control */
+#define MCS_SETAVDD 0x27 /* PFM Control for AVDD Output */
+#define MCS_SETAVEE 0x29 /* PFM Control for AVEE Output */
+#define MCS_BT2CTR 0x2B /* DDVDL Charge Pump Control */
+#define MCS_BT3CTR 0x2F /* VGH Charge Pump Control */
+#define MCS_BT4CTR 0x34 /* VGL Charge Pump Control */
+#define MCS_VCMCTR 0x46 /* VCOM Output Level Control */
+#define MCS_SETVGN 0x52 /* VG M/S N Control */
+#define MCS_SETVGP 0x54 /* VG M/S P Control */
+#define MCS_SW_CTRL 0x5F /* Interface Control for PFM and MIPI */
+
+/* CMD2 P2 commands (GOA Timing Control) - no description in datasheet */
+#define GOA_VSTV1 0x00
+#define GOA_VSTV2 0x07
+#define GOA_VCLK1 0x0E
+#define GOA_VCLK2 0x17
+#define GOA_VCLK_OPT1 0x20
+#define GOA_BICLK1 0x2A
+#define GOA_BICLK2 0x37
+#define GOA_BICLK3 0x44
+#define GOA_BICLK4 0x4F
+#define GOA_BICLK_OPT1 0x5B
+#define GOA_BICLK_OPT2 0x60
+#define MCS_GOA_GPO1 0x6D
+#define MCS_GOA_GPO2 0x71
+#define MCS_GOA_EQ 0x74
+#define MCS_GOA_CLK_GALLON 0x7C
+#define MCS_GOA_FS_SEL0 0x7E
+#define MCS_GOA_FS_SEL1 0x87
+#define MCS_GOA_FS_SEL2 0x91
+#define MCS_GOA_FS_SEL3 0x9B
+#define MCS_GOA_BS_SEL0 0xAC
+#define MCS_GOA_BS_SEL1 0xB5
+#define MCS_GOA_BS_SEL2 0xBF
+#define MCS_GOA_BS_SEL3 0xC9
+#define MCS_GOA_BS_SEL4 0xD3
+
+/* CMD2 P3 commands (Gamma) */
+#define MCS_GAMMA_VP 0x60 /* Gamma VP1~VP16 */
+#define MCS_GAMMA_VN 0x70 /* Gamma VN1~VN16 */
+
+struct rm68200 {
+ struct device *dev;
+ struct drm_panel panel;
+ struct gpio_desc *reset_gpio;
+ struct regulator *supply;
+ struct backlight_device *backlight;
+ bool prepared;
+ bool enabled;
+};
+
+static const struct drm_display_mode default_mode = {
+ .clock = 52582,
+ .hdisplay = 720,
+ .hsync_start = 720 + 38,
+ .hsync_end = 720 + 38 + 8,
+ .htotal = 720 + 38 + 8 + 38,
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 12,
+ .vsync_end = 1280 + 12 + 4,
+ .vtotal = 1280 + 12 + 4 + 12,
+ .vrefresh = 50,
+ .flags = 0,
+ .width_mm = 68,
+ .height_mm = 122,
+};
+
+static inline struct rm68200 *panel_to_rm68200(struct drm_panel *panel)
+{
+ return container_of(panel, struct rm68200, panel);
+}
+
+static void rm68200_dcs_write_buf(struct rm68200 *ctx, const void *data,
+ size_t len)
+{
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+
+ if (mipi_dsi_dcs_write_buffer(dsi, data, len) < 0)
+ DRM_WARN_ONCE("mipi dsi dcs write buffer failed\n");
+}
+
+static void rm68200_dcs_write_cmd(struct rm68200 *ctx, u8 cmd, u8 value)
+{
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+
+ if (mipi_dsi_dcs_write(dsi, cmd, &value, 1) < 0)
+ DRM_WARN_ONCE("mipi dsi dcs write failed\n");
+}
+
+#define dcs_write_seq(ctx, seq...) \
+({ \
+ static const u8 d[] = { seq }; \
+ rm68200_dcs_write_buf(ctx, d, ARRAY_SIZE(d)); \
+})
+
+/*
+ * This panel is not able to auto-increment all cmd addresses so for some of
+ * them, we need to send them one by one...
+ */
+#define dcs_write_cmd_seq(ctx, cmd, seq...) \
+({ \
+ static const u8 d[] = { seq }; \
+ static int i; \
+ for (i = 0; i < ARRAY_SIZE(d) ; i++) \
+ rm68200_dcs_write_cmd(ctx, cmd + i, d[i]); \
+})
+
+static void rm68200_init_sequence(struct rm68200 *ctx)
+{
+ /* Enter CMD2 with page 0 */
+ dcs_write_seq(ctx, MCS_CMD_MODE_SW, MCS_CMD2_P0);
+ dcs_write_cmd_seq(ctx, MCS_EXT_PWR_IC, 0xC0, 0x53, 0x00);
+ dcs_write_seq(ctx, MCS_BT2CTR, 0xE5);
+ dcs_write_seq(ctx, MCS_SETAVDD, 0x0A);
+ dcs_write_seq(ctx, MCS_SETAVEE, 0x0A);
+ dcs_write_seq(ctx, MCS_SGOPCTR, 0x52);
+ dcs_write_seq(ctx, MCS_BT3CTR, 0x53);
+ dcs_write_seq(ctx, MCS_BT4CTR, 0x5A);
+ dcs_write_seq(ctx, MCS_INVCTR, 0x00);
+ dcs_write_seq(ctx, MCS_STBCTR, 0x0A);
+ dcs_write_seq(ctx, MCS_SDCTR, 0x06);
+ dcs_write_seq(ctx, MCS_VCMCTR, 0x56);
+ dcs_write_seq(ctx, MCS_SETVGN, 0xA0, 0x00);
+ dcs_write_seq(ctx, MCS_SETVGP, 0xA0, 0x00);
+ dcs_write_seq(ctx, MCS_SW_CTRL, 0x11); /* 2 data lanes, see doc */
+
+ dcs_write_seq(ctx, MCS_CMD_MODE_SW, MCS_CMD2_P2);
+ dcs_write_seq(ctx, GOA_VSTV1, 0x05);
+ dcs_write_seq(ctx, 0x02, 0x0B);
+ dcs_write_seq(ctx, 0x03, 0x0F);
+ dcs_write_seq(ctx, 0x04, 0x7D, 0x00, 0x50);
+ dcs_write_cmd_seq(ctx, GOA_VSTV2, 0x05, 0x16, 0x0D, 0x11, 0x7D, 0x00,
+ 0x50);
+ dcs_write_cmd_seq(ctx, GOA_VCLK1, 0x07, 0x08, 0x01, 0x02, 0x00, 0x7D,
+ 0x00, 0x85, 0x08);
+ dcs_write_cmd_seq(ctx, GOA_VCLK2, 0x03, 0x04, 0x05, 0x06, 0x00, 0x7D,
+ 0x00, 0x85, 0x08);
+ dcs_write_seq(ctx, GOA_VCLK_OPT1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00);
+ dcs_write_cmd_seq(ctx, GOA_BICLK1, 0x07, 0x08);
+ dcs_write_seq(ctx, 0x2D, 0x01);
+ dcs_write_seq(ctx, 0x2F, 0x02, 0x00, 0x40, 0x05, 0x08, 0x54, 0x7D,
+ 0x00);
+ dcs_write_cmd_seq(ctx, GOA_BICLK2, 0x03, 0x04, 0x05, 0x06, 0x00);
+ dcs_write_seq(ctx, 0x3D, 0x40);
+ dcs_write_seq(ctx, 0x3F, 0x05, 0x08, 0x54, 0x7D, 0x00);
+ dcs_write_seq(ctx, GOA_BICLK3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00);
+ dcs_write_seq(ctx, GOA_BICLK4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00);
+ dcs_write_seq(ctx, 0x58, 0x00, 0x00, 0x00);
+ dcs_write_seq(ctx, GOA_BICLK_OPT1, 0x00, 0x00, 0x00, 0x00, 0x00);
+ dcs_write_seq(ctx, GOA_BICLK_OPT2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
+ dcs_write_seq(ctx, MCS_GOA_GPO1, 0x00, 0x00, 0x00, 0x00);
+ dcs_write_seq(ctx, MCS_GOA_GPO2, 0x00, 0x20, 0x00);
+ dcs_write_seq(ctx, MCS_GOA_EQ, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+ 0x00, 0x00);
+ dcs_write_seq(ctx, MCS_GOA_CLK_GALLON, 0x00, 0x00);
+ dcs_write_cmd_seq(ctx, MCS_GOA_FS_SEL0, 0xBF, 0x02, 0x06, 0x14, 0x10,
+ 0x16, 0x12, 0x08, 0x3F);
+ dcs_write_cmd_seq(ctx, MCS_GOA_FS_SEL1, 0x3F, 0x3F, 0x3F, 0x3F, 0x0C,
+ 0x0A, 0x0E, 0x3F, 0x3F, 0x00);
+ dcs_write_cmd_seq(ctx, MCS_GOA_FS_SEL2, 0x04, 0x3F, 0x3F, 0x3F, 0x3F,
+ 0x05, 0x01, 0x3F, 0x3F, 0x0F);
+ dcs_write_cmd_seq(ctx, MCS_GOA_FS_SEL3, 0x0B, 0x0D, 0x3F, 0x3F, 0x3F,
+ 0x3F);
+ dcs_write_cmd_seq(ctx, 0xA2, 0x3F, 0x09, 0x13, 0x17, 0x11, 0x15);
+ dcs_write_cmd_seq(ctx, 0xA9, 0x07, 0x03, 0x3F);
+ dcs_write_cmd_seq(ctx, MCS_GOA_BS_SEL0, 0x3F, 0x05, 0x01, 0x17, 0x13,
+ 0x15, 0x11, 0x0F, 0x3F);
+ dcs_write_cmd_seq(ctx, MCS_GOA_BS_SEL1, 0x3F, 0x3F, 0x3F, 0x3F, 0x0B,
+ 0x0D, 0x09, 0x3F, 0x3F, 0x07);
+ dcs_write_cmd_seq(ctx, MCS_GOA_BS_SEL2, 0x03, 0x3F, 0x3F, 0x3F, 0x3F,
+ 0x02, 0x06, 0x3F, 0x3F, 0x08);
+ dcs_write_cmd_seq(ctx, MCS_GOA_BS_SEL3, 0x0C, 0x0A, 0x3F, 0x3F, 0x3F,
+ 0x3F, 0x3F, 0x0E, 0x10, 0x14);
+ dcs_write_cmd_seq(ctx, MCS_GOA_BS_SEL4, 0x12, 0x16, 0x00, 0x04, 0x3F);
+ dcs_write_seq(ctx, 0xDC, 0x02);
+ dcs_write_seq(ctx, 0xDE, 0x12);
+
+ dcs_write_seq(ctx, MCS_CMD_MODE_SW, 0x0E); /* No documentation */
+ dcs_write_seq(ctx, 0x01, 0x75);
+
+ dcs_write_seq(ctx, MCS_CMD_MODE_SW, MCS_CMD2_P3);
+ dcs_write_cmd_seq(ctx, MCS_GAMMA_VP, 0x00, 0x0C, 0x12, 0x0E, 0x06,
+ 0x12, 0x0E, 0x0B, 0x15, 0x0B, 0x10, 0x07, 0x0F,
+ 0x12, 0x0C, 0x00);
+ dcs_write_cmd_seq(ctx, MCS_GAMMA_VN, 0x00, 0x0C, 0x12, 0x0E, 0x06,
+ 0x12, 0x0E, 0x0B, 0x15, 0x0B, 0x10, 0x07, 0x0F,
+ 0x12, 0x0C, 0x00);
+
+ /* Exit CMD2 */
+ dcs_write_seq(ctx, MCS_CMD_MODE_SW, MCS_CMD1_UCS);
+}
+
+static int rm68200_disable(struct drm_panel *panel)
+{
+ struct rm68200 *ctx = panel_to_rm68200(panel);
+
+ if (!ctx->enabled)
+ return 0;
+
+ backlight_disable(ctx->backlight);
+
+ ctx->enabled = false;
+
+ return 0;
+}
+
+static int rm68200_unprepare(struct drm_panel *panel)
+{
+ struct rm68200 *ctx = panel_to_rm68200(panel);
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+ int ret;
+
+ if (!ctx->prepared)
+ return 0;
+
+ ret = mipi_dsi_dcs_set_display_off(dsi);
+ if (ret)
+ DRM_WARN("failed to set display off: %d\n", ret);
+
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (ret)
+ DRM_WARN("failed to enter sleep mode: %d\n", ret);
+
+ msleep(120);
+
+ if (ctx->reset_gpio) {
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ msleep(20);
+ }
+
+ regulator_disable(ctx->supply);
+
+ ctx->prepared = false;
+
+ return 0;
+}
+
+static int rm68200_prepare(struct drm_panel *panel)
+{
+ struct rm68200 *ctx = panel_to_rm68200(panel);
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+ int ret;
+
+ if (ctx->prepared)
+ return 0;
+
+ ret = regulator_enable(ctx->supply);
+ if (ret < 0) {
+ DRM_ERROR("failed to enable supply: %d\n", ret);
+ return ret;
+ }
+
+ if (ctx->reset_gpio) {
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ msleep(20);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+ msleep(100);
+ }
+
+ rm68200_init_sequence(ctx);
+
+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+ if (ret)
+ return ret;
+
+ msleep(125);
+
+ ret = mipi_dsi_dcs_set_display_on(dsi);
+ if (ret)
+ return ret;
+
+ msleep(20);
+
+ ctx->prepared = true;
+
+ return 0;
+}
+
+static int rm68200_enable(struct drm_panel *panel)
+{
+ struct rm68200 *ctx = panel_to_rm68200(panel);
+
+ if (ctx->enabled)
+ return 0;
+
+ backlight_enable(ctx->backlight);
+
+ ctx->enabled = true;
+
+ return 0;
+}
+
+static int rm68200_get_modes(struct drm_panel *panel)
+{
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(panel->drm, &default_mode);
+ if (!mode) {
+ DRM_ERROR("failed to add mode %ux%ux@%u\n",
+ default_mode.hdisplay, default_mode.vdisplay,
+ default_mode.vrefresh);
+ return -ENOMEM;
+ }
+
+ drm_mode_set_name(mode);
+
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+ drm_mode_probed_add(panel->connector, mode);
+
+ panel->connector->display_info.width_mm = mode->width_mm;
+ panel->connector->display_info.height_mm = mode->height_mm;
+
+ return 1;
+}
+
+static const struct drm_panel_funcs rm68200_drm_funcs = {
+ .disable = rm68200_disable,
+ .unprepare = rm68200_unprepare,
+ .prepare = rm68200_prepare,
+ .enable = rm68200_enable,
+ .get_modes = rm68200_get_modes,
+};
+
+static int rm68200_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct rm68200 *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->reset_gpio)) {
+ dev_err(dev, "cannot get reset-gpio\n");
+ return PTR_ERR(ctx->reset_gpio);
+ }
+
+ ctx->supply = devm_regulator_get(dev, "power");
+ if (IS_ERR(ctx->supply)) {
+ dev_err(dev, "cannot get regulator\n");
+ return PTR_ERR(ctx->supply);
+ }
+
+ ctx->backlight = devm_of_find_backlight(dev);
+ if (IS_ERR(ctx->backlight))
+ return PTR_ERR(ctx->backlight);
+
+ mipi_dsi_set_drvdata(dsi, ctx);
+
+ ctx->dev = dev;
+
+ dsi->lanes = 2;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+ MIPI_DSI_MODE_LPM;
+
+ drm_panel_init(&ctx->panel);
+ ctx->panel.dev = dev;
+ ctx->panel.funcs = &rm68200_drm_funcs;
+
+ drm_panel_add(&ctx->panel);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret < 0) {
+ dev_err(dev, "mipi_dsi_attach failed. Is host ready?\n");
+ drm_panel_remove(&ctx->panel);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rm68200_remove(struct mipi_dsi_device *dsi)
+{
+ struct rm68200 *ctx = mipi_dsi_get_drvdata(dsi);
+
+ mipi_dsi_detach(dsi);
+ drm_panel_remove(&ctx->panel);
+
+ return 0;
+}
+
+static const struct of_device_id raydium_rm68200_of_match[] = {
+ { .compatible = "raydium,rm68200" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, raydium_rm68200_of_match);
+
+static struct mipi_dsi_driver raydium_rm68200_driver = {
+ .probe = rm68200_probe,
+ .remove = rm68200_remove,
+ .driver = {
+ .name = "panel-raydium-rm68200",
+ .of_match_table = raydium_rm68200_of_match,
+ },
+};
+module_mipi_dsi_driver(raydium_rm68200_driver);
+
+MODULE_AUTHOR("Philippe Cornu <philippe.cornu@st.com>");
+MODULE_AUTHOR("Yannick Fertre <yannick.fertre@st.com>");
+MODULE_DESCRIPTION("DRM Driver for Raydium RM68200 MIPI DSI panel");
+MODULE_LICENSE("GPL v2");
--
2.15.1
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