[v9,2/3] drm/panel: Add support for S6E3HA2 panel driver on TM2 board

Message ID	1485935214-16210-3-git-send-email-hoegeun.kwon@samsung.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <dri-devel-bounces@lists.freedesktop.org> From: Hoegeun Kwon <hoegeun.kwon@samsung.com> To: krzk@kernel.org, robh@kernel.org, thierry.reding@gmail.com, airlied@linux.ie, kgene@kernel.org Subject: [PATCH v9 2/3] drm/panel: Add support for S6E3HA2 panel driver on TM2 board Date: Wed, 01 Feb 2017 16:46:53 +0900 Message-id: <1485935214-16210-3-git-send-email-hoegeun.kwon@samsung.com> In-reply-to: <1485935214-16210-1-git-send-email-hoegeun.kwon@samsung.com> CMS-TYPE: 105P DLP-Filter: Pass References: <1485935214-16210-1-git-send-email-hoegeun.kwon@samsung.com> <CGME20170201074711epcas5p4f8e12133bb36c5a4ac8a23acad1471c2@epcas5p4.samsung.com> Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, cw00.choi@samsung.com, Donghwa Lee <dh09.lee@samsung.com>, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, jh80.chung@samsung.com, andi.shyti@samsung.com, Hyungwon Hwang <human.hwang@samsung.com>, Hoegeun Kwon <hoegeun.kwon@samsung.com> Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 62aba97..d913c83 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -52,6 +52,12 @@ config DRM_PANEL_PANASONIC_VVX10F034N00 WUXGA (1920x1200) Novatek NT1397-based DSI panel as found in some Xperia Z2 tablets +config DRM_PANEL_SAMSUNG_S6E3HA2 + tristate "Samsung S6E3HA2 DSI video mode panel" + depends on OF + depends on DRM_MIPI_DSI + select VIDEOMODE_HELPERS + config DRM_PANEL_SAMSUNG_S6E8AA0 tristate "Samsung S6E8AA0 DSI video mode panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index a5c7ec0..1d483b0 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c new file mode 100644 index 0000000..0b9c6f4 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c @@ -0,0 +1,754 @@ +/* + * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver. + * + * Copyright (c) 2016 Samsung Electronics Co., Ltd. + * Donghwa Lee <dh09.lee@samsung.com> + * Hyungwon Hwang <human.hwang@samsung.com> + * Hoegeun Kwon <hoegeun.kwon@samsung.com> + * + * 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/backlight.h> +#include <linux/gpio/consumer.h> +#include <linux/regulator/consumer.h> + +#define S6E3HA2_MIN_BRIGHTNESS 0 +#define S6E3HA2_MAX_BRIGHTNESS 100 +#define S6E3HA2_DEFAULT_BRIGHTNESS 80 + +#define S6E3HA2_NUM_GAMMA_STEPS 46 +#define S6E3HA2_GAMMA_CMD_CNT 35 +#define S6E3HA2_VINT_STATUS_MAX 10 + +static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = { + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83, + 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c, + 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84, + 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a, + 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 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0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, + 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82, + 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83, + 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83, + 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80, + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81, + 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83, + 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80, + 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80, + 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80, + 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d, + 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80, + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82, + 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80, + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 } +}; + +unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = { + 0x18, 0x19, 0x1a, 0x1b, 0x1c, + 0x1d, 0x1e, 0x1f, 0x20, 0x21 +}; + +struct s6e3ha2 { + struct device *dev; + struct drm_panel panel; + struct backlight_device *bl_dev; + + struct regulator_bulk_data supplies[2]; + struct gpio_desc *reset_gpio; + struct gpio_desc *enable_gpio; + + /* This field is tested by functions directly accessing DSI bus before + * transfer, transfer is skipped if it is set. In case of transfer + * failure or unexpected response the field is set to error value. + * Such construct allows to eliminate many checks in higher level + * functions. + */ + int error; +}; + +static int s6e3ha2_clear_error(struct s6e3ha2 *ctx) +{ + int ret = ctx->error; + + ctx->error = 0; + return ret; +} + +static void s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + ssize_t ret; + + if (ctx->error < 0) + return; + + ret = mipi_dsi_dcs_write_buffer(dsi, data, len); + if (ret < 0) { + dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", + ret, (int)len, data); + ctx->error = ret; + } +} + +#define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \ + static const u8 d[] = { seq }; \ + s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \ +} while (0) + +static void s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a); +} + +static void s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5); +} + +static void s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a); +} + +static void s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5); +} + +static void s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67); + s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09); +} + +static void s6e3ha2_freq_calibration(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c); + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39); + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0); + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20); + s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, + 0x40, 0x80, 0xc0, 0x28, 0x28, 0x28, 0x28, 0x39, 0xc5); +} + +static void s6e3ha2_aor_control(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10); +} + +static void s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a); +} + +static void s6e3ha2_acl_off(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00); +} + +static void s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40); +} + +static void s6e3ha2_test_global(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07); +} + +static void s6e3ha2_test(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19); +} + +static void s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, + 0xbd, 0x33, 0x11, 0x02, 0x16, 0x02, 0x16); +} + +static void s6e3ha2_pentile_control(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8); +} + +static void s6e3ha2_poc_global(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20); +} + +static void s6e3ha2_poc_setting(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08); +} + +static void s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51); +} + +static void s6e3ha2_err_fg_set(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44); +} + +static void s6e3ha2_hbm_off(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00); +} + +static void s6e3ha2_te_start_setting(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09); +} + +static void s6e3ha2_gamma_update(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03); + ndelay(100); /* need for 100ns delay */ + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00); +} + +static int s6e3ha2_get_brightness(struct backlight_device *bl_dev) +{ + return bl_dev->props.brightness; +} + +static void s6e3ha2_set_vint(struct s6e3ha2 *ctx) +{ + struct backlight_device *bl_dev = ctx->bl_dev; + unsigned int brightness = bl_dev->props.brightness; + unsigned char data[] = { 0xf4, 0x8b, + vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) / + S6E3HA2_MAX_BRIGHTNESS] }; + + s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); +} + +static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness) +{ + return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) / + S6E3HA2_MAX_BRIGHTNESS; +} + +static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness) +{ + struct backlight_device *bl_dev = ctx->bl_dev; + unsigned int index = s6e3ha2_get_brightness_index(brightness); + u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, }; + + memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT); + s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); + + s6e3ha2_gamma_update(ctx); + bl_dev->props.brightness = brightness; + + return 0; +} + +static int s6e3ha2_set_brightness(struct backlight_device *bl_dev) +{ + struct s6e3ha2 *ctx = bl_get_data(bl_dev); + unsigned int brightness = bl_dev->props.brightness; + + if (brightness < S6E3HA2_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) + return -EPERM; + + s6e3ha2_test_key_on_f0(ctx); + s6e3ha2_update_gamma(ctx, brightness); + s6e3ha2_aor_control(ctx); + s6e3ha2_set_vint(ctx); + s6e3ha2_test_key_off_f0(ctx); + + return ctx->error; +} + +static const struct backlight_ops s6e3ha2_bl_ops = { + .get_brightness = s6e3ha2_get_brightness, + .update_status = s6e3ha2_set_brightness, +}; + +static int s6e3ha2_panel_init(struct s6e3ha2 *ctx) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) + return ret; + usleep_range(5000, 6000); + + s6e3ha2_test_key_on_f0(ctx); + s6e3ha2_single_dsi_set(ctx); + s6e3ha2_test_key_on_fc(ctx); + s6e3ha2_freq_calibration(ctx); + s6e3ha2_test_key_off_fc(ctx); + s6e3ha2_test_key_off_f0(ctx); + + return 0; +} + +static int s6e3ha2_power_off(struct s6e3ha2 *ctx) +{ + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); +} + +static int s6e3ha2_disable(struct drm_panel *panel) +{ + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) + return ret; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) + return ret; + + msleep(40); + ctx->bl_dev->props.power = FB_BLANK_NORMAL; + + return 0; +} + +static int s6e3ha2_unprepare(struct drm_panel *panel) +{ + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); + int ret; + + ret = s6e3ha2_clear_error(ctx); + if (!ret) + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; + + return s6e3ha2_power_off(ctx); +} + +static int s6e3ha2_power_on(struct s6e3ha2 *ctx) +{ + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret < 0) + return ret; + + msleep(120); + + gpiod_set_value(ctx->enable_gpio, 0); + usleep_range(5000, 6000); + gpiod_set_value(ctx->enable_gpio, 1); + + gpiod_set_value(ctx->reset_gpio, 1); + usleep_range(5000, 6000); + gpiod_set_value(ctx->reset_gpio, 0); + usleep_range(5000, 6000); + + return 0; +} +static int s6e3ha2_prepare(struct drm_panel *panel) +{ + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); + int ret; + + ret = s6e3ha2_power_on(ctx); + if (ret < 0) + return ret; + + ret = s6e3ha2_panel_init(ctx); + if (ret < 0) + goto err; + + ret = s6e3ha2_clear_error(ctx); + if (ret < 0) + goto err; + + ctx->bl_dev->props.power = FB_BLANK_NORMAL; + + return 0; + +err: + s6e3ha2_power_off(ctx); + return ret; +} + +static int s6e3ha2_enable(struct drm_panel *panel) +{ + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + /* common setting */ + ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); + if (ret < 0) + return ret; + + s6e3ha2_test_key_on_f0(ctx); + s6e3ha2_test_key_on_fc(ctx); + s6e3ha2_touch_hsync_on1(ctx); + s6e3ha2_pentile_control(ctx); + s6e3ha2_poc_global(ctx); + s6e3ha2_poc_setting(ctx); + s6e3ha2_test_key_off_fc(ctx); + + /* pcd setting off for TB */ + s6e3ha2_pcd_set_off(ctx); + s6e3ha2_err_fg_set(ctx); + s6e3ha2_te_start_setting(ctx); + + /* brightness setting */ + s6e3ha2_set_brightness(ctx->bl_dev); + s6e3ha2_aor_control(ctx); + s6e3ha2_caps_elvss_set(ctx); + s6e3ha2_gamma_update(ctx); + s6e3ha2_acl_off(ctx); + s6e3ha2_acl_off_opr(ctx); + s6e3ha2_hbm_off(ctx); + + /* elvss temp compensation */ + s6e3ha2_test_global(ctx); + s6e3ha2_test(ctx); + s6e3ha2_test_key_off_f0(ctx); + + if (ctx->error != 0) + return ctx->error; + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) + return ret; + + ctx->bl_dev->props.power = FB_BLANK_UNBLANK; + + return 0; +} + +static const struct drm_display_mode default_mode = { + .clock = 222372, + .hdisplay = 1440, + .hsync_start = 1440 + 1, + .hsync_end = 1440 + 1 + 1, + .htotal = 1440 + 1 + 1 + 1, + .vdisplay = 2560, + .vsync_start = 2560 + 1, + .vsync_end = 2560 + 1 + 1, + .vtotal = 2560 + 1 + 1 + 15, + .vrefresh = 60, + .flags = 0, +}; + +static int s6e3ha2_get_modes(struct drm_panel *panel) +{ + struct drm_connector *connector = panel->connector; + 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(connector, mode); + + connector->display_info.width_mm = 71; + connector->display_info.height_mm = 125; + + return 1; +} + +static const struct drm_panel_funcs s6e3ha2_drm_funcs = { + .disable = s6e3ha2_disable, + .unprepare = s6e3ha2_unprepare, + .prepare = s6e3ha2_prepare, + .enable = s6e3ha2_enable, + .get_modes = s6e3ha2_get_modes, +}; + +static int s6e3ha2_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct s6e3ha2 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + mipi_dsi_set_drvdata(dsi, ctx); + + ctx->dev = dev; + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS; + + 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_LOW); + 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->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); + if (IS_ERR(ctx->enable_gpio)) { + dev_err(dev, "cannot get enable-gpios %ld\n", + PTR_ERR(ctx->enable_gpio)); + return PTR_ERR(ctx->enable_gpio); + } + + ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx, + &s6e3ha2_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 = S6E3HA2_MAX_BRIGHTNESS; + ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; + + drm_panel_init(&ctx->panel); + ctx->panel.dev = dev; + ctx->panel.funcs = &s6e3ha2_drm_funcs; + + 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 s6e3ha2_remove(struct mipi_dsi_device *dsi) +{ + struct s6e3ha2 *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 s6e3ha2_of_match[] = { + { .compatible = "samsung,s6e3ha2" }, + { } +}; +MODULE_DEVICE_TABLE(of, s6e3ha2_of_match); + +static struct mipi_dsi_driver s6e3ha2_driver = { + .probe = s6e3ha2_probe, + .remove = s6e3ha2_remove, + .driver = { + .name = "panel-samsung-s6e3ha2", + .of_match_table = s6e3ha2_of_match, + }, +}; +module_mipi_dsi_driver(s6e3ha2_driver); + +MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); +MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>"); +MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>"); +MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver"); +MODULE_LICENSE("GPL v2");

[v9,2/3] drm/panel: Add support for S6E3HA2 panel driver on TM2 board

Commit Message

Patch