Please ignore this mail. I didn't know that "git send *" includes all
files in the subdirectories. I am very sorry for disturbing you.
Best regards,
Hyungwon Hwang
On Fri, 12 Jun 2015 21:59:17 +0900
Hyungwon Hwang <human.hwang@xxxxxxxxxxx> wrote:
> From: Inki Dae <inki.dae@xxxxxxxxxxx>
>
> This patch adds MIPI-DSI based S6E63J0X03 AMOLED LCD panel driver
> which uses mipi_dsi bus to communicate with panel. The panel has
> 320×320 resolution in 1.63-inch physical panel. This panel is used in
> Samsung Galaxy Gear 2.
>
> Signed-off-by: Inki Dae <inki.dae@xxxxxxxxxxx>
> Signed-off-by: Hyungwon Hwang <human.hwang@xxxxxxxxxxx>
> Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
>
> ---
> Changes for v2:
> - Change the gamma table to 2-dimensional array
> - Change the way to make index for brightness
> - Make command functions to an array so that it can be called simply
> - Change command id for reading device ID
> - Change the way to handle the error condition
> - Remove power variable, and use the same name variable in bl_dev
> - Add the state FB_BLANK_NORMAL to represent the state which the panel
> is working but blanked
> - Miscellaneous changes to increase the readability and follow the
> coding-style standard
> Changes for v3:
> - Add DT binding documentation
> - Add the code getting DT properties of 'panel-width-mm' and
> 'panel-height-mm'
> - Remove the code getting unnecessary DT properties flip-*
> .../bindings/panel/samsung,s6e63j0x03.txt | 55 +++
> drivers/gpu/drm/panel/Kconfig | 6 +
> drivers/gpu/drm/panel/Makefile | 1 +
> drivers/gpu/drm/panel/panel-s6e63j0x03.c | 546
> +++++++++++++++++++++ 4 files changed, 608 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/panel/samsung,s6e63j0x03.txt create
> mode 100644 drivers/gpu/drm/panel/panel-s6e63j0x03.c
>
> --
> 1.9.1
>
> diff --git
> a/Documentation/devicetree/bindings/panel/samsung,s6e63j0x03.txt
> b/Documentation/devicetree/bindings/panel/samsung,s6e63j0x03.txt new
> file mode 100644 index 0000000..f8215e4 --- /dev/null
> +++ b/Documentation/devicetree/bindings/panel/samsung,s6e63j0x03.txt
> @@ -0,0 +1,55 @@
> +Samsung S6E63J0X03 1.63" 320x320 TFT LCD panel
> +
> +Required properties:
> + - compatible: "samsung,s6e63j0x03"
> + - reg: the virtual channel number of a DSI peripheral
> + - vdd3-supply: core voltage supply
> + - vci-supply: voltage supply for analog circuits
> + - reset-gpios: a GPIO spec for the reset pin
> + - te-gpios: a GPIO spec for the tearing effect synchronization
> signal gpio pin +
> +Optional properties:
> + - display-timings: timings for the connected panel as described by
> [1]
> + - power-on-delay: delay after turning regulators on [ms]
> + - power-off-delay: delay after turning regulators off [ms]
> + - reset-delay: delay after reset sequence [ms]
> + - panel-width-mm: physical panel width [mm]
> + - panel-height-mm: physical panel height [mm]
> +
> +The device node can contain one 'port' child node with one child
> +'endpoint' node, according to the bindings defined in [2]. This
> +node should describe panel's video bus.
> +
> +[1]: Documentation/devicetree/bindings/video/display-timing.txt
> +[2]: Documentation/devicetree/bindings/media/video-interfaces.txt
> +
> +Example:
> +
> +panel@0 {
> + compatible = "samsung,s6e63j0x03";
> + reg = <0>;
> + vdd3-supply = <&ldo16_reg>;
> + vci-supply = <&ldo20_reg>;
> + reset-gpios = <&gpe0 1 0>;
> + te-gpios = <&gpx0 6 0>;
> + power-on-delay= <30>;
> + power-off-delay= <120>;
> + reset-delay = <5>;
> + init-delay = <100>;
> + panel-width-mm = <29>;
> + panel-height-mm = <29>;
> +
> + display-timings {
> + timing-0 {
> + clock-frequency = <0>;
> + hactive = <320>;
> + vactive = <320>;
> + hfront-porch = <1>;
> + hback-porch = <1>;
> + hsync-len = <1>;
> + vfront-porch = <150>;
> + vback-porch = <1>;
> + vsync-len = <2>;
> + };
> + };
> +};
> diff --git a/drivers/gpu/drm/panel/Kconfig
> b/drivers/gpu/drm/panel/Kconfig index 3df9b9b..8fa7610 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -46,4 +46,10 @@ config DRM_PANEL_S6E3HA2
> select DRM_MIPI_DSI
> select VIDEOMODE_HELPERS
>
> +config DRM_PANEL_S6E63J0X03
> + tristate "S6E63J0X03 DSI video mode panel"
> + depends on OF
> + select DRM_MIPI_DSI
> + select VIDEOMODE_HELPERS
> +
> endmenu
> diff --git a/drivers/gpu/drm/panel/Makefile
> b/drivers/gpu/drm/panel/Makefile index 16ff312..9054da1 100644
> --- a/drivers/gpu/drm/panel/Makefile
> +++ b/drivers/gpu/drm/panel/Makefile
> @@ -3,3 +3,4 @@ obj-$(CONFIG_DRM_PANEL_LD9040) += panel-ld9040.o
> obj-$(CONFIG_DRM_PANEL_S6E8AA0) += panel-s6e8aa0.o
> obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) +=
> panel-sharp-lq101r1sx01.o obj-$(CONFIG_DRM_PANEL_S6E3HA2) +=
> panel-s6e3ha2.o +obj-$(CONFIG_DRM_PANEL_S6E63J0X03) +=
> panel-s6e63j0x03.o diff --git
> a/drivers/gpu/drm/panel/panel-s6e63j0x03.c
> b/drivers/gpu/drm/panel/panel-s6e63j0x03.c new file mode 100644 index
> 0000000..51cf1f6 --- /dev/null
> +++ b/drivers/gpu/drm/panel/panel-s6e63j0x03.c
> @@ -0,0 +1,546 @@
> +/*
> + * MIPI-DSI based S6E63J0X03 AMOLED lcd 1.63 inch panel driver.
> + *
> + * Copyright (c) 2014 Samsung Electronics Co., Ltd
> + *
> + * Inki Dae, <inki.dae@xxxxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or
> modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#include <drm/drmP.h>
> +#include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_panel.h>
> +
> +#include <linux/of_gpio.h>
> +#include <linux/gpio.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/backlight.h>
> +
> +#include <video/mipi_display.h>
> +#include <video/of_videomode.h>
> +#include <video/videomode.h>
> +
> +#define READ_ID1 0xDA
> +#define READ_ID2 0xDB
> +#define READ_ID3 0xDC
> +
> +#define MCS_LEVEL2_KEY 0xf0
> +#define MCS_MTP_KEY 0xf1
> +#define MCS_MTP_SET3 0xd4
> +
> +#define MIN_BRIGHTNESS 0
> +#define MAX_BRIGHTNESS 100
> +#define DEFAULT_BRIGHTNESS 80
> +
> +#define GAMMA_LEVEL_NUM 30
> +#define NUM_GAMMA_STEPS 9
> +#define GAMMA_CMD_CNT 28
> +
> +struct s6e63j0x03 {
> + struct device *dev;
> + struct drm_panel panel;
> + struct backlight_device *bl_dev;
> +
> + struct regulator_bulk_data supplies[2];
> + struct gpio_desc *reset_gpio;
> + u32 power_on_delay;
> + u32 power_off_delay;
> + u32 reset_delay;
> + u32 init_delay;
> + struct videomode vm;
> + unsigned int width_mm;
> + unsigned int height_mm;
> +};
> +
> +static const unsigned char gamma_tbl[NUM_GAMMA_STEPS][GAMMA_CMD_CNT]
> = {
> + { /* Gamma 10 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x7f, 0x7f, 0x7f, 0x52, 0x6b,
> 0x6f, 0x26,
> + 0x28, 0x2d, 0x28, 0x26, 0x27, 0x33, 0x34, 0x32,
> 0x36, 0x36,
> + 0x35, 0x00, 0xab, 0x00, 0xae, 0x00, 0xbf
> + },
> + { /* gamma 30 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x70, 0x7f, 0x7f, 0x4e, 0x64,
> 0x69, 0x26,
> + 0x27, 0x2a, 0x28, 0x29, 0x27, 0x31, 0x32, 0x31,
> 0x35, 0x34,
> + 0x35, 0x00, 0xc4, 0x00, 0xca, 0x00, 0xdc
> + },
> + { /* gamma 60 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x65, 0x7b, 0x7d, 0x5f, 0x67,
> 0x68, 0x2a,
> + 0x28, 0x29, 0x28, 0x2a, 0x27, 0x31, 0x2f, 0x30,
> 0x34, 0x33,
> + 0x34, 0x00, 0xd9, 0x00, 0xe4, 0x00, 0xf5
> + },
> + { /* gamma 90 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x4d, 0x6f, 0x71, 0x67, 0x6a,
> 0x6c, 0x29,
> + 0x28, 0x28, 0x28, 0x29, 0x27, 0x30, 0x2e, 0x30,
> 0x32, 0x31,
> + 0x31, 0x00, 0xea, 0x00, 0xf6, 0x01, 0x09
> + },
> + { /* gamma 120 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x3d, 0x66, 0x68, 0x69, 0x69,
> 0x69, 0x28,
> + 0x28, 0x27, 0x28, 0x28, 0x27, 0x30, 0x2e, 0x2f,
> 0x31, 0x31,
> + 0x30, 0x00, 0xf9, 0x01, 0x05, 0x01, 0x1b
> + },
> + { /* gamma 150 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x31, 0x51, 0x53, 0x66, 0x66,
> 0x67, 0x28,
> + 0x29, 0x27, 0x28, 0x27, 0x27, 0x2e, 0x2d, 0x2e,
> 0x31, 0x31,
> + 0x30, 0x01, 0x04, 0x01, 0x11, 0x01, 0x29
> + },
> + { /* gamma 200 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x2f, 0x4f, 0x51, 0x67, 0x65,
> 0x65, 0x29,
> + 0x2a, 0x28, 0x27, 0x25, 0x26, 0x2d, 0x2c, 0x2c,
> 0x30, 0x30,
> + 0x30, 0x01, 0x14, 0x01, 0x23, 0x01, 0x3b
> + },
> + { /* gamma 240 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x2c, 0x4d, 0x50, 0x65, 0x63,
> 0x64, 0x2a,
> + 0x2c, 0x29, 0x26, 0x24, 0x25, 0x2c, 0x2b, 0x2b,
> 0x30, 0x30,
> + 0x30, 0x01, 0x1e, 0x01, 0x2f, 0x01, 0x47
> + },
> + { /* gamma 300 */
> + MCS_MTP_SET3,
> + 0x00, 0x00, 0x00, 0x38, 0x61, 0x64, 0x65, 0x63,
> 0x64, 0x28,
> + 0x2a, 0x27, 0x26, 0x23, 0x25, 0x2b, 0x2b, 0x2a,
> 0x30, 0x2f,
> + 0x30, 0x01, 0x2d, 0x01, 0x3f, 0x01, 0x57
> + }
> +};
> +
> +static const unsigned char prepare_cmds1[][15] = {
> + { 3, 0xf2, 0x1c, 0x28 }, /* porch_adjustment
> */
> + { 4, 0xb5, 0x00, 0x02, 0x00 }, /* frame_freq
> */
> + { 5, 0x2a, 0x00, 0x14, 0x01, 0x53 }, /*
> mem_addr_set_0 */
> + { 5, 0x2b, 0x00, 0x00, 0x01, 0x3f }, /*
> mem_addr_set_1 */
> + { 14, 0xf8, 0x08, 0x08, 0x08, 0x17, /*
> ltps_timming_set_0_60hz */
> + 0x00, 0x2a, 0x02, 0x26,
> + 0x00, 0x00, 0x02, 0x00, 0x00 },
> + { 2, 0xf7, 0x02 }, /*
> ltps_timming_set_1 */
> + { 2, 0xb0, 0x01 }, /*
> param_pos_te_edge */
> + { 2, 0xe2, 0x0f }, /* te_rising_edge
> */
> + { 2, 0xb0, 0x00 }, /*
> param_pos_default */
> + { 1, MIPI_DCS_EXIT_SLEEP_MODE },
> +};
> +
> +static const unsigned char prepare_cmds2[][4] = {
> + { 3, 0xb1, 0x00, 0x09 }, /* elvss_cond */
> + { 2, 0x36, 0x40 }, /* set_pos */
> + { 2, 0x51, 0xff }, /*
> white_brightness_default */
> + { 2, 0x53, 0x20 }, /* white_ctrl */
> + { 2, 0x55, 0x00 }, /* acl_off */
> + { 1, MIPI_DCS_SET_TEAR_ON },
> +};
> +
> +
> +static inline struct s6e63j0x03 *panel_to_s6e63j0x03(struct
> drm_panel *panel) +{
> + return container_of(panel, struct s6e63j0x03, panel);
> +}
> +
> +static inline ssize_t s6e63j0x03_dcs_write_seq(struct s6e63j0x03
> *ctx,
> + const u8 *seq, const
> unsigned char len) +{
> + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> +
> + return mipi_dsi_dcs_write(dsi, seq, len);
> +}
> +
> +static inline int s6e63j0x03_enable_lv2_command(struct s6e63j0x03
> *ctx) +{
> + unsigned char seq[] = { MCS_LEVEL2_KEY, 0x5a, 0x5a };
> +
> + return s6e63j0x03_dcs_write_seq(ctx, seq, ARRAY_SIZE(seq));
> +}
> +
> +static inline int s6e63j0x03_apply_mtp_key(struct s6e63j0x03 *ctx,
> bool on) +{
> + unsigned char seq1[3] = { MCS_MTP_KEY, 0x5a, 0x5a };
> + unsigned char seq2[3] = { MCS_MTP_KEY, 0xa5, 0xa5 };
> +
> + return s6e63j0x03_dcs_write_seq(ctx, on ? seq1 : seq2,
> + ARRAY_SIZE(seq1));
> +}
> +
> +static int s6e63j0x03_read_mtp_id(struct s6e63j0x03 *ctx)
> +{
> + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> + unsigned char cmds[3] = { READ_ID1, READ_ID2, READ_ID3 };
> + unsigned char id[3];
> + int ret;
> + int i;
> +
> + for (i = 0; i < 3; i++) {
> + ret = mipi_dsi_dcs_read(dsi, cmds[i], &id[i], 1);
> +
> + if (ret < 0)
> + return ret;
> + }
> +
> + dev_info(ctx->dev, "ID: 0x%02x, 0x%02x, 0x%02x\n", id[0],
> id[1], id[2]); +
> + return 0;
> +}
> +
> +static int s6e63j0x03_power_on(struct s6e63j0x03 *ctx)
> +{
> + int ret;
> +
> + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies),
> ctx->supplies);
> + if (ret < 0)
> + return ret;
> +
> + msleep(ctx->power_on_delay);
> +
> + gpiod_set_value(ctx->reset_gpio, 0);
> + usleep_range(1000, 2000);
> + gpiod_set_value(ctx->reset_gpio, 1);
> +
> + usleep_range(ctx->reset_delay * 1000, (ctx->reset_delay + 1)
> * 1000); +
> + return 0;
> +}
> +
> +static int s6e63j0x03_power_off(struct s6e63j0x03 *ctx)
> +{
> + int ret;
> +
> + gpiod_set_value(ctx->reset_gpio, 0);
> +
> + ret = regulator_bulk_disable(ARRAY_SIZE(ctx->supplies),
> ctx->supplies);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +static int s6e63j0x03_get_brightness(struct backlight_device *bl_dev)
> +{
> + return bl_dev->props.brightness;
> +}
> +
> +static unsigned int s6e63j0x03_get_brightness_index(unsigned int
> brightness) +{
> + unsigned int index;
> +
> + index = brightness / (MAX_BRIGHTNESS / NUM_GAMMA_STEPS);
> +
> + if (index >= NUM_GAMMA_STEPS)
> + index = NUM_GAMMA_STEPS - 1;
> +
> + return index;
> +}
> +
> +static int s6e63j0x03_update_gamma(struct s6e63j0x03 *ctx,
> + unsigned int brightness)
> +{
> + struct backlight_device *bl_dev = ctx->bl_dev;
> + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> + unsigned int index =
> s6e63j0x03_get_brightness_index(brightness);
> + int ret;
> +
> + ret = s6e63j0x03_apply_mtp_key(ctx, true);
> + if (ret < 0)
> + return ret;
> +
> + ret = mipi_dsi_dcs_write(dsi, gamma_tbl[index],
> GAMMA_CMD_CNT);
> + if (ret < 0)
> + return ret;
> +
> + ret = s6e63j0x03_apply_mtp_key(ctx, false);
> + if (ret < 0)
> + return ret;
> +
> + bl_dev->props.brightness = brightness;
> +
> + return 0;
> +}
> +
> +static int s6e63j0x03_set_brightness(struct backlight_device *bl_dev)
> +{
> + struct s6e63j0x03 *ctx = (struct s6e63j0x03
> *)bl_get_data(bl_dev);
> + unsigned int brightness = bl_dev->props.brightness;
> + int ret;
> +
> + if (brightness < MIN_BRIGHTNESS ||
> + brightness > bl_dev->props.max_brightness) {
> + dev_err(ctx->dev, "Invalid brightness: %u\n",
> brightness);
> + return -EINVAL;
> + }
> +
> + if (bl_dev->props.power > FB_BLANK_NORMAL) {
> + dev_err(ctx->dev,
> + "panel must be at least in fb blank normal
> state\n");
> + return -EPERM;
> + }
> +
> + ret = s6e63j0x03_update_gamma(ctx, brightness);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +static const struct backlight_ops s6e63j0x03_bl_ops = {
> + .get_brightness = s6e63j0x03_get_brightness,
> + .update_status = s6e63j0x03_set_brightness,
> +};
> +
> +static int s6e63j0x03_disable(struct drm_panel *panel)
> +{
> + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel);
> + struct backlight_device *bl_dev = ctx->bl_dev;
> + u8 seq[] = { MIPI_DCS_SET_DISPLAY_OFF };
> + int ret;
> +
> + ret = s6e63j0x03_dcs_write_seq(ctx, seq, ARRAY_SIZE(seq));
> + if (ret > 0)
> + bl_dev->props.power = FB_BLANK_NORMAL;
> +
> + return 0;
> +}
> +
> +static int s6e63j0x03_unprepare(struct drm_panel *panel)
> +{
> + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel);
> + struct backlight_device *bl_dev = ctx->bl_dev;
> + u8 seq[] = { MIPI_DCS_ENTER_SLEEP_MODE };
> + int ret;
> +
> + ret = s6e63j0x03_dcs_write_seq(ctx, seq, ARRAY_SIZE(seq));
> + if (ret < 0)
> + return ret;
> +
> + msleep(ctx->power_off_delay);
> +
> + ret = s6e63j0x03_power_off(ctx);
> + if (ret < 0)
> + return ret;
> +
> + bl_dev->props.power = FB_BLANK_POWERDOWN;
> +
> + return 0;
> +}
> +
> +static int s6e63j0x03_prepare(struct drm_panel *panel)
> +{
> + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel);
> + struct backlight_device *bl_dev = ctx->bl_dev;
> + int ret;
> + int i;
> +
> + ret = s6e63j0x03_power_on(ctx);
> + if (ret < 0)
> + return ret;
> +
> + ret = s6e63j0x03_enable_lv2_command(ctx);
> + if (ret < 0)
> + return ret;
> +
> + ret = s6e63j0x03_apply_mtp_key(ctx, true);
> + if (ret < 0)
> + return ret;
> +
> + ret = s6e63j0x03_read_mtp_id(ctx);
> + if (ret < 0)
> + return ret;
> +
> + for (i = 0; i < ARRAY_SIZE(prepare_cmds1); i++) {
> + ret = s6e63j0x03_dcs_write_seq(ctx,
> &prepare_cmds1[i][1],
> +
> prepare_cmds1[i][0]);
> + if (ret < 0)
> + return ret;
> + }
> +
> + msleep(120);
> +
> + for (i = 0; i < ARRAY_SIZE(prepare_cmds2); i++) {
> + ret = s6e63j0x03_dcs_write_seq(ctx,
> &prepare_cmds2[i][1],
> +
> prepare_cmds2[i][0]);
> + if (ret < 0)
> + return ret;
> + }
> +
> + ret = s6e63j0x03_apply_mtp_key(ctx, false);
> + if (ret < 0)
> + return ret;
> +
> + bl_dev->props.power = FB_BLANK_NORMAL;
> +
> + return 0;
> +}
> +
> +static int s6e63j0x03_enable(struct drm_panel *panel)
> +{
> + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel);
> + struct backlight_device *bl_dev = ctx->bl_dev;
> + u8 seq[] = { MIPI_DCS_SET_DISPLAY_ON };
> + int ret;
> +
> + ret = s6e63j0x03_dcs_write_seq(ctx, seq, ARRAY_SIZE(seq));
> + if (ret > 0)
> + bl_dev->props.power = FB_BLANK_UNBLANK;
> +
> + return 0;
> +}
> +
> +static int s6e63j0x03_get_modes(struct drm_panel *panel)
> +{
> + struct drm_connector *connector = panel->connector;
> + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel);
> + struct drm_display_mode *mode;
> +
> + mode = drm_mode_create(connector->dev);
> + if (!mode) {
> + DRM_ERROR("failed to create a new display mode\n");
> + return 0;
> + }
> +
> + drm_display_mode_from_videomode(&ctx->vm, mode);
> + mode->width_mm = ctx->width_mm;
> + mode->height_mm = ctx->height_mm;
> + connector->display_info.width_mm = mode->width_mm;
> + connector->display_info.height_mm = mode->height_mm;
> +
> + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
> + drm_mode_probed_add(connector, mode);
> +
> + return 1;
> +}
> +
> +static const struct drm_panel_funcs s6e63j0x03_funcs = {
> + .disable = s6e63j0x03_disable,
> + .unprepare = s6e63j0x03_unprepare,
> + .prepare = s6e63j0x03_prepare,
> + .enable = s6e63j0x03_enable,
> + .get_modes = s6e63j0x03_get_modes,
> +};
> +
> +static int s6e63j0x03_parse_dt(struct s6e63j0x03 *ctx)
> +{
> + struct device *dev = ctx->dev;
> + struct device_node *np = dev->of_node;
> + int ret;
> +
> + ret = of_get_videomode(np, &ctx->vm, 0);
> + if (ret < 0)
> + return ret;
> +
> + of_property_read_u32(np, "power-on-delay",
> &ctx->power_on_delay);
> + of_property_read_u32(np, "power-off-delay",
> &ctx->power_off_delay);
> + of_property_read_u32(np, "reset-delay", &ctx->reset_delay);
> + of_property_read_u32(np, "init-delay", &ctx->init_delay);
> + of_property_read_u32(np, "panel-width-mm", &ctx->width_mm);
> + of_property_read_u32(np, "panel-height-mm", &ctx->height_mm);
> +
> + return ret;
> +}
> +
> +static int s6e63j0x03_probe(struct mipi_dsi_device *dsi)
> +{
> + struct device *dev = &dsi->dev;
> + struct s6e63j0x03 *ctx;
> + int ret;
> +
> + ctx = devm_kzalloc(dev, sizeof(struct s6e63j0x03),
> GFP_KERNEL);
> + if (!ctx)
> + return -ENOMEM;
> +
> + mipi_dsi_set_drvdata(dsi, ctx);
> +
> + ctx->dev = dev;
> +
> + dsi->lanes = 1;
> + dsi->format = MIPI_DSI_FMT_RGB888;
> + dsi->mode_flags = MIPI_DSI_MODE_EOT_PACKET |
> MIPI_DSI_MODE_VIDEO_BURST; +
> + ret = s6e63j0x03_parse_dt(ctx);
> + if (ret < 0)
> + return ret;
> +
> + ctx->supplies[0].supply = "vdd3";
> + ctx->supplies[1].supply = "vci";
> + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
> + ctx->supplies);
> + if (ret < 0) {
> + dev_err(dev, "failed to get regulators: %d\n", ret);
> + 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-gpio: %ld\n",
> + PTR_ERR(ctx->reset_gpio));
> + return PTR_ERR(ctx->reset_gpio);
> + }
> +
> + drm_panel_init(&ctx->panel);
> + ctx->panel.dev = dev;
> + ctx->panel.funcs = &s6e63j0x03_funcs;
> +
> + ctx->bl_dev = backlight_device_register("s6e63j0x03", dev,
> ctx,
> + &s6e63j0x03_bl_ops,
> NULL);
> + if (IS_ERR(ctx->bl_dev)) {
> + dev_err(dev, "failed to register backlight
> device\n");
> + return PTR_ERR(ctx->bl_dev);
> + }
> +
> + ctx->bl_dev->props.max_brightness = MAX_BRIGHTNESS;
> + ctx->bl_dev->props.brightness = DEFAULT_BRIGHTNESS;
> + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN;
> +
> +
> + ret = drm_panel_add(&ctx->panel);
> + if (ret < 0)
> + goto unregister_backlight;
> +
> + ret = mipi_dsi_attach(dsi);
> + if (ret < 0)
> + goto remove_panel;
> +
> + return ret;
> +
> +remove_panel:
> + drm_panel_remove(&ctx->panel);
> +
> +unregister_backlight:
> + backlight_device_unregister(ctx->bl_dev);
> +
> + return ret;
> +}
> +
> +static int s6e63j0x03_remove(struct mipi_dsi_device *dsi)
> +{
> + struct s6e63j0x03 *ctx = mipi_dsi_get_drvdata(dsi);
> +
> + mipi_dsi_detach(dsi);
> + drm_panel_remove(&ctx->panel);
> +
> + backlight_device_unregister(ctx->bl_dev);
> +
> + return 0;
> +}
> +
> +static const struct of_device_id s6e63j0x03_of_match[] = {
> + { .compatible = "samsung,s6e63j0x03" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, s6e63j0x03_of_match);
> +
> +static struct mipi_dsi_driver s6e63j0x03_driver = {
> + .probe = s6e63j0x03_probe,
> + .remove = s6e63j0x03_remove,
> + .driver = {
> + .name = "panel_s6e63j0x03",
> + .of_match_table = s6e63j0x03_of_match,
> + },
> +};
> +module_mipi_dsi_driver(s6e63j0x03_driver);
> +
> +MODULE_AUTHOR("Inki Dae <inki.dae@xxxxxxxxxxx>");
> +MODULE_DESCRIPTION("MIPI-DSI based s6e8aa0 AMOLED LCD Panel Driver");
> +MODULE_LICENSE("GPL v2");
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