[RFC PATCH v2 06/21] drm/panel: add S6E8AA0 driver

Andrzej Hajda
2014-02-12T11:32:19Z

The patch adds MIPI-DSI based S6E8AA0 AMOLED LCD panel driver.
Driver uses mipi_dsi bus to communicate with panel and exposes drm_panel
interface.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
---
v2
- added bus error handling,
- set maxmimum DSI packet size on init,
- removed unsupported brightness drm_panel callbacks,
- minor improvements
---
drivers/gpu/drm/panel/Kconfig | 7 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-s6e8aa0.c | 1064 +++++++++++++++++++++++++++++++++
3 files changed, 1072 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-s6e8aa0.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 3e0f13d..7527557 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -16,4 +16,11 @@ config DRM_PANEL_SIMPLE
that it can be automatically turned off when the panel goes into a
low power state.

+config DRM_PANEL_S6E8AA0
+ tristate "S6E8AA0 DSI video mode panel"
+ depends on DRM && DRM_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 af9dfa2..181265b 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -1 +1,2 @@
obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
+obj-$(CONFIG_DRM_PANEL_S6E8AA0) += panel-s6e8aa0.o
diff --git a/drivers/gpu/drm/panel/panel-s6e8aa0.c b/drivers/gpu/drm/panel/panel-s6e8aa0.c
new file mode 100644
index 0000000..f762c9d
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-s6e8aa0.c
@@ -0,0 +1,1064 @@
+/*
+ * MIPI-DSI based s6e8aa0 AMOLED LCD 5.3 inch panel driver.
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd
+ *
+ * Inki Dae, <inki.dae@samsung.com>
+ * Donghwa Lee, <dh09.lee@samsung.com>
+ * Joongmock Shin <jmock.shin@samsung.com>
+ * Eunchul Kim <chulspro.kim@samsung.com>
+ * Tomasz Figa <t.figa@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/gpio.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+#include <video/of_videomode.h>
+#include <video/videomode.h>
+
+#define LDI_MTP_LENGTH 24
+#define GAMMA_LEVEL_NUM 25
+#define GAMMA_TABLE_LEN 26
+
+#define PANELCTL_SS_MASK (1 << 5)
+#define PANELCTL_SS_1_800 (0 << 5)
+#define PANELCTL_SS_800_1 (1 << 5)
+#define PANELCTL_GTCON_MASK (7 << 2)
+#define PANELCTL_GTCON_110 (6 << 2)
+#define PANELCTL_GTCON_111 (7 << 2)
+
+#define PANELCTL_CLK1_CON_MASK (7 << 3)
+#define PANELCTL_CLK1_000 (0 << 3)
+#define PANELCTL_CLK1_001 (1 << 3)
+#define PANELCTL_CLK2_CON_MASK (7 << 0)
+#define PANELCTL_CLK2_000 (0 << 0)
+#define PANELCTL_CLK2_001 (1 << 0)
+
+#define PANELCTL_INT1_CON_MASK (7 << 3)
+#define PANELCTL_INT1_000 (0 << 3)
+#define PANELCTL_INT1_001 (1 << 3)
+#define PANELCTL_INT2_CON_MASK (7 << 0)
+#define PANELCTL_INT2_000 (0 << 0)
+#define PANELCTL_INT2_001 (1 << 0)
+
+#define PANELCTL_BICTL_CON_MASK (7 << 3)
+#define PANELCTL_BICTL_000 (0 << 3)
+#define PANELCTL_BICTL_001 (1 << 3)
+#define PANELCTL_BICTLB_CON_MASK (7 << 0)
+#define PANELCTL_BICTLB_000 (0 << 0)
+#define PANELCTL_BICTLB_001 (1 << 0)
+
+#define PANELCTL_EM_CLK1_CON_MASK (7 << 3)
+#define PANELCTL_EM_CLK1_110 (6 << 3)
+#define PANELCTL_EM_CLK1_111 (7 << 3)
+#define PANELCTL_EM_CLK1B_CON_MASK (7 << 0)
+#define PANELCTL_EM_CLK1B_110 (6 << 0)
+#define PANELCTL_EM_CLK1B_111 (7 << 0)
+
+#define PANELCTL_EM_CLK2_CON_MASK (7 << 3)
+#define PANELCTL_EM_CLK2_110 (6 << 3)
+#define PANELCTL_EM_CLK2_111 (7 << 3)
+#define PANELCTL_EM_CLK2B_CON_MASK (7 << 0)
+#define PANELCTL_EM_CLK2B_110 (6 << 0)
+#define PANELCTL_EM_CLK2B_111 (7 << 0)
+
+#define PANELCTL_EM_INT1_CON_MASK (7 << 3)
+#define PANELCTL_EM_INT1_000 (0 << 3)
+#define PANELCTL_EM_INT1_001 (1 << 3)
+#define PANELCTL_EM_INT2_CON_MASK (7 << 0)
+#define PANELCTL_EM_INT2_000 (0 << 0)
+#define PANELCTL_EM_INT2_001 (1 << 0)
+
+#define AID_DISABLE (0x4)
+#define AID_1 (0x5)
+#define AID_2 (0x6)
+#define AID_3 (0x7)
+
+typedef u8 s6e8aa0_gamma_table[GAMMA_TABLE_LEN];
+
+struct s6e8aa0_variant {
+ u8 version;
+ const s6e8aa0_gamma_table *gamma_tables;
+};
+
+struct s6e8aa0 {
+ struct device *dev;
+ struct drm_panel panel;
+
+ struct regulator_bulk_data supplies[2];
+ int reset_gpio;
+ u32 power_on_delay;
+ u32 reset_delay;
+ u32 init_delay;
+ bool flip_horizontal;
+ bool flip_vertical;
+ struct videomode vm;
+ u32 width_mm;
+ u32 height_mm;
+
+ u8 version;
+ u8 id;
+ const struct s6e8aa0_variant *variant;
+ int brightness;
+
+ /* 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;
+};
+
+#define panel_to_s6e8aa0(p) container_of(p, struct s6e8aa0, panel)
+
+static int s6e8aa0_clear_error(struct s6e8aa0 *ctx)
+{
+ int ret = ctx->error;
+
+ ctx->error = 0;
+ return ret;
+}
+
+static void s6e8aa0_dcs_write(struct s6e8aa0 *ctx, const void *data, size_t len)
+{
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+ int ret;
+
+ if (ctx->error < 0)
+ return;
+
+ ret = mipi_dsi_dcs_write(dsi, dsi->channel, data, len);
+ if (ret < 0) {
+ dev_err(ctx->dev, "error %d writing dcs seq: %*ph\n", ret, len,
+ data);
+ ctx->error = ret;
+ }
+}
+
+static int s6e8aa0_dcs_read(struct s6e8aa0 *ctx, u8 cmd, void *data, size_t len)
+{
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+ int ret;
+
+ if (ctx->error < 0)
+ return ctx->error;
+
+ ret = mipi_dsi_dcs_read(dsi, dsi->channel, cmd, data, len);
+ if (ret < 0) {
+ dev_err(ctx->dev, "error %d reading dcs seq(%#x)\n", ret, cmd);
+ ctx->error = ret;
+ }
+
+ return ret;
+}
+
+#define s6e8aa0_dcs_write_seq(ctx, seq...) \
+({\
+ const u8 d[] = { seq };\
+ BUILD_BUG_ON_MSG(ARRAY_SIZE(d) > 64, "DCS sequence too big for stack");\
+ s6e8aa0_dcs_write(ctx, d, ARRAY_SIZE(d));\
+})
+
+#define s6e8aa0_dcs_write_seq_static(ctx, seq...) \
+({\
+ static const u8 d[] = { seq };\
+ s6e8aa0_dcs_write(ctx, d, ARRAY_SIZE(d));\
+})
+
+static void s6e8aa0_apply_level_1_key(struct s6e8aa0 *ctx)
+{
+ s6e8aa0_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a);
+}
+
+static void s6e8aa0_panel_cond_set_v142(struct s6e8aa0 *ctx)
+{
+ static const u8 aids[] = {
+ 0x04, 0x04, 0x04, 0x04, 0x04, 0x60, 0x80, 0xA0
+ };
+ u8 aid = aids[ctx->id >> 5];
+ u8 cfg = 0x3d;
+ u8 clk_con = 0xc8;
+ u8 int_con = 0x08;
+ u8 bictl_con = 0x48;
+ u8 em_clk1_con = 0xff;
+ u8 em_clk2_con = 0xff;
+ u8 em_int_con = 0xc8;
+
+ if (ctx->flip_vertical) {
+ /* GTCON */
+ cfg &= ~(PANELCTL_GTCON_MASK);
+ cfg |= (PANELCTL_GTCON_110);
+ }
+
+ if (ctx->flip_horizontal) {
+ /* SS */
+ cfg &= ~(PANELCTL_SS_MASK);
+ cfg |= (PANELCTL_SS_1_800);
+ }
+
+ if (ctx->flip_horizontal || ctx->flip_vertical) {
+ /* CLK1,2_CON */
+ clk_con &= ~(PANELCTL_CLK1_CON_MASK |
+ PANELCTL_CLK2_CON_MASK);
+ clk_con |= (PANELCTL_CLK1_000 | PANELCTL_CLK2_001);
+
+ /* INT1,2_CON */
+ int_con &= ~(PANELCTL_INT1_CON_MASK |
+ PANELCTL_INT2_CON_MASK);
+ int_con |= (PANELCTL_INT1_000 | PANELCTL_INT2_001);
+
+ /* BICTL,B_CON */
+ bictl_con &= ~(PANELCTL_BICTL_CON_MASK |
+ PANELCTL_BICTLB_CON_MASK);
+ bictl_con |= (PANELCTL_BICTL_000 |
+ PANELCTL_BICTLB_001);
+
+ /* EM_CLK1,1B_CON */
+ em_clk1_con &= ~(PANELCTL_EM_CLK1_CON_MASK |
+ PANELCTL_EM_CLK1B_CON_MASK);
+ em_clk1_con |= (PANELCTL_EM_CLK1_110 |
+ PANELCTL_EM_CLK1B_110);
+
+ /* EM_CLK2,2B_CON */
+ em_clk2_con &= ~(PANELCTL_EM_CLK2_CON_MASK |
+ PANELCTL_EM_CLK2B_CON_MASK);
+ em_clk2_con |= (PANELCTL_EM_CLK2_110 |
+ PANELCTL_EM_CLK2B_110);
+
+ /* EM_INT1,2_CON */
+ em_int_con &= ~(PANELCTL_EM_INT1_CON_MASK |
+ PANELCTL_EM_INT2_CON_MASK);
+ em_int_con |= (PANELCTL_EM_INT1_000 |
+ PANELCTL_EM_INT2_001);
+ }
+
+ s6e8aa0_dcs_write_seq(ctx,
+ 0xf8, cfg, 0x35, 0x00, 0x00, 0x00, 0x93, 0x00,
+ 0x3c, 0x78, 0x08, 0x27, 0x7d, 0x3f, 0x00, 0x00,
+ 0x00, 0x20, aid, 0x08, 0x6e, 0x00, 0x00, 0x00,
+ 0x02, 0x07, 0x07, 0x23, 0x23, 0xc0, clk_con, int_con,
+ bictl_con, 0xc1, 0x00, 0xc1, em_clk1_con, em_clk2_con,
+ em_int_con);
+}
+
+static void s6e8aa0_panel_cond_set(struct s6e8aa0 *ctx)
+{
+ if (ctx->version < 142)
+ s6e8aa0_dcs_write_seq_static(ctx,
+ 0xf8, 0x19, 0x35, 0x00, 0x00, 0x00, 0x94, 0x00,
+ 0x3c, 0x78, 0x10, 0x27, 0x08, 0x6e, 0x00, 0x00,
+ 0x00, 0x00, 0x04, 0x08, 0x6e, 0x00, 0x00, 0x00,
+ 0x00, 0x07, 0x07, 0x23, 0x6e, 0xc0, 0xc1, 0x01,
+ 0x81, 0xc1, 0x00, 0xc3, 0xf6, 0xf6, 0xc1
+ );
+ else
+ s6e8aa0_panel_cond_set_v142(ctx);
+}
+
+static void s6e8aa0_display_condition_set(struct s6e8aa0 *ctx)
+{
+ s6e8aa0_dcs_write_seq_static(ctx, 0xf2, 0x80, 0x03, 0x0d);
+}
+
+static void s6e8aa0_etc_source_control(struct s6e8aa0 *ctx)
+{
+ s6e8aa0_dcs_write_seq_static(ctx, 0xf6, 0x00, 0x02, 0x00);
+}
+
+static void s6e8aa0_etc_pentile_control(struct s6e8aa0 *ctx)
+{
+ static const u8 pent32[] = {
+ 0xb6, 0x0c, 0x02, 0x03, 0x32, 0xc0, 0x44, 0x44, 0xc0, 0x00
+ };
+
+ static const u8 pent142[] = {
+ 0xb6, 0x0c, 0x02, 0x03, 0x32, 0xff, 0x44, 0x44, 0xc0, 0x00
+ };
+
+ if (ctx->version < 142)
+ s6e8aa0_dcs_write(ctx, pent32, ARRAY_SIZE(pent32));
+ else
+ s6e8aa0_dcs_write(ctx, pent142, ARRAY_SIZE(pent142));
+}
+
+static void s6e8aa0_etc_power_control(struct s6e8aa0 *ctx)
+{
+ static const u8 pwr142[] = {
+ 0xf4, 0xcf, 0x0a, 0x12, 0x10, 0x1e, 0x33, 0x02
+ };
+
+ static const u8 pwr32[] = {
+ 0xf4, 0xcf, 0x0a, 0x15, 0x10, 0x19, 0x33, 0x02
+ };
+
+ if (ctx->version < 142)
+ s6e8aa0_dcs_write(ctx, pwr32, ARRAY_SIZE(pwr32));
+ else
+ s6e8aa0_dcs_write(ctx, pwr142, ARRAY_SIZE(pwr142));
+}
+
+static void s6e8aa0_etc_elvss_control(struct s6e8aa0 *ctx)
+{
+ u8 id = ctx->id ? 0 : 0x95;
+
+ s6e8aa0_dcs_write_seq(ctx, 0xb1, 0x04, id);
+}
+
+static void s6e8aa0_elvss_nvm_set_v142(struct s6e8aa0 *ctx)
+{
+ u8 br;
+
+ switch (ctx->brightness) {
+ case 0 ... 6: /* 30cd ~ 100cd */
+ br = 0xdf;
+ break;
+ case 7 ... 11: /* 120cd ~ 150cd */
+ br = 0xdd;
+ break;
+ case 12 ... 15: /* 180cd ~ 210cd */
+ default:
+ br = 0xd9;
+ break;
+ case 16 ... 24: /* 240cd ~ 300cd */
+ br = 0xd0;
+ break;
+ }
+
+ s6e8aa0_dcs_write_seq(ctx, 0xd9, 0x14, 0x40, 0x0c, 0xcb, 0xce, 0x6e,
+ 0xc4, 0x0f, 0x40, 0x41, br, 0x00, 0x60, 0x19);
+}
+
+static void s6e8aa0_elvss_nvm_set(struct s6e8aa0 *ctx)
+{
+ if (ctx->version < 142)
+ s6e8aa0_dcs_write_seq_static(ctx,
+ 0xd9, 0x14, 0x40, 0x0c, 0xcb, 0xce, 0x6e, 0xc4, 0x07,
+ 0x40, 0x41, 0xc1, 0x00, 0x60, 0x19);
+ else
+ s6e8aa0_elvss_nvm_set_v142(ctx);
+};
+
+static void s6e8aa0_apply_level_2_key(struct s6e8aa0 *ctx)
+{
+ s6e8aa0_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a);
+}
+
+static const s6e8aa0_gamma_table s6e8aa0_gamma_tables_v142[GAMMA_LEVEL_NUM] = {
+ {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0x62, 0x55, 0x55,
+ 0xaf, 0xb1, 0xb1, 0xbd, 0xce, 0xb7, 0x9a, 0xb1,
+ 0x90, 0xb2, 0xc4, 0xae, 0x00, 0x60, 0x00, 0x40,
+ 0x00, 0x70,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0x74, 0x68, 0x69,
+ 0xb8, 0xc1, 0xb7, 0xbd, 0xcd, 0xb8, 0x93, 0xab,
+ 0x88, 0xb4, 0xc4, 0xb1, 0x00, 0x6b, 0x00, 0x4d,
+ 0x00, 0x7d,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0x95, 0x8a, 0x89,
+ 0xb4, 0xc6, 0xb2, 0xc5, 0xd2, 0xbf, 0x90, 0xa8,
+ 0x85, 0xb5, 0xc4, 0xb3, 0x00, 0x7b, 0x00, 0x5d,
+ 0x00, 0x8f,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0x9f, 0x98, 0x92,
+ 0xb3, 0xc4, 0xb0, 0xbc, 0xcc, 0xb4, 0x91, 0xa6,
+ 0x87, 0xb5, 0xc5, 0xb4, 0x00, 0x87, 0x00, 0x6a,
+ 0x00, 0x9e,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0x99, 0x93, 0x8b,
+ 0xb2, 0xc2, 0xb0, 0xbd, 0xce, 0xb4, 0x90, 0xa6,
+ 0x87, 0xb3, 0xc3, 0xb2, 0x00, 0x8d, 0x00, 0x70,
+ 0x00, 0xa4,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa7, 0xa5, 0x99,
+ 0xb2, 0xc2, 0xb0, 0xbb, 0xcd, 0xb1, 0x93, 0xa7,
+ 0x8a, 0xb2, 0xc1, 0xb0, 0x00, 0x92, 0x00, 0x75,
+ 0x00, 0xaa,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa0, 0xa0, 0x93,
+ 0xb6, 0xc4, 0xb4, 0xb5, 0xc8, 0xaa, 0x94, 0xa9,
+ 0x8c, 0xb2, 0xc0, 0xb0, 0x00, 0x97, 0x00, 0x7a,
+ 0x00, 0xaf,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa3, 0xa7, 0x96,
+ 0xb3, 0xc2, 0xb0, 0xba, 0xcb, 0xb0, 0x94, 0xa8,
+ 0x8c, 0xb0, 0xbf, 0xaf, 0x00, 0x9f, 0x00, 0x83,
+ 0x00, 0xb9,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0x9d, 0xa2, 0x90,
+ 0xb6, 0xc5, 0xb3, 0xb8, 0xc9, 0xae, 0x94, 0xa8,
+ 0x8d, 0xaf, 0xbd, 0xad, 0x00, 0xa4, 0x00, 0x88,
+ 0x00, 0xbf,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa6, 0xac, 0x97,
+ 0xb4, 0xc4, 0xb1, 0xbb, 0xcb, 0xb2, 0x93, 0xa7,
+ 0x8d, 0xae, 0xbc, 0xad, 0x00, 0xa7, 0x00, 0x8c,
+ 0x00, 0xc3,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa2, 0xa9, 0x93,
+ 0xb6, 0xc5, 0xb2, 0xba, 0xc9, 0xb0, 0x93, 0xa7,
+ 0x8d, 0xae, 0xbb, 0xac, 0x00, 0xab, 0x00, 0x90,
+ 0x00, 0xc8,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0x9e, 0xa6, 0x8f,
+ 0xb7, 0xc6, 0xb3, 0xb8, 0xc8, 0xb0, 0x93, 0xa6,
+ 0x8c, 0xae, 0xbb, 0xad, 0x00, 0xae, 0x00, 0x93,
+ 0x00, 0xcc,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xab, 0xb4, 0x9c,
+ 0xb3, 0xc3, 0xaf, 0xb7, 0xc7, 0xaf, 0x93, 0xa6,
+ 0x8c, 0xaf, 0xbc, 0xad, 0x00, 0xb1, 0x00, 0x97,
+ 0x00, 0xcf,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa6, 0xb1, 0x98,
+ 0xb1, 0xc2, 0xab, 0xba, 0xc9, 0xb2, 0x93, 0xa6,
+ 0x8d, 0xae, 0xba, 0xab, 0x00, 0xb5, 0x00, 0x9b,
+ 0x00, 0xd4,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa3, 0xae, 0x94,
+ 0xb2, 0xc3, 0xac, 0xbb, 0xca, 0xb4, 0x91, 0xa4,
+ 0x8a, 0xae, 0xba, 0xac, 0x00, 0xb8, 0x00, 0x9e,
+ 0x00, 0xd8,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xab, 0xb7, 0x9c,
+ 0xae, 0xc0, 0xa9, 0xba, 0xc9, 0xb3, 0x92, 0xa5,
+ 0x8b, 0xad, 0xb9, 0xab, 0x00, 0xbb, 0x00, 0xa1,
+ 0x00, 0xdc,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa7, 0xb4, 0x97,
+ 0xb0, 0xc1, 0xaa, 0xb9, 0xc8, 0xb2, 0x92, 0xa5,
+ 0x8c, 0xae, 0xb9, 0xab, 0x00, 0xbe, 0x00, 0xa4,
+ 0x00, 0xdf,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa3, 0xb0, 0x94,
+ 0xb0, 0xc2, 0xab, 0xbb, 0xc9, 0xb3, 0x91, 0xa4,
+ 0x8b, 0xad, 0xb8, 0xaa, 0x00, 0xc1, 0x00, 0xa8,
+ 0x00, 0xe2,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa3, 0xb0, 0x94,
+ 0xae, 0xbf, 0xa8, 0xb9, 0xc8, 0xb3, 0x92, 0xa4,
+ 0x8b, 0xad, 0xb7, 0xa9, 0x00, 0xc4, 0x00, 0xab,
+ 0x00, 0xe6,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa7, 0xb6, 0x98,
+ 0xaf, 0xc0, 0xa8, 0xb8, 0xc7, 0xb2, 0x93, 0xa5,
+ 0x8d, 0xad, 0xb7, 0xa9, 0x00, 0xc7, 0x00, 0xae,
+ 0x00, 0xe9,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa4, 0xb3, 0x95,
+ 0xaf, 0xc1, 0xa9, 0xb9, 0xc8, 0xb3, 0x92, 0xa4,
+ 0x8b, 0xad, 0xb7, 0xaa, 0x00, 0xc9, 0x00, 0xb0,
+ 0x00, 0xec,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa4, 0xb3, 0x95,
+ 0xac, 0xbe, 0xa6, 0xbb, 0xc9, 0xb4, 0x90, 0xa3,
+ 0x8a, 0xad, 0xb7, 0xa9, 0x00, 0xcc, 0x00, 0xb4,
+ 0x00, 0xf0,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa0, 0xb0, 0x91,
+ 0xae, 0xc0, 0xa6, 0xba, 0xc8, 0xb4, 0x91, 0xa4,
+ 0x8b, 0xad, 0xb7, 0xa9, 0x00, 0xcf, 0x00, 0xb7,
+ 0x00, 0xf3,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa7, 0xb8, 0x98,
+ 0xab, 0xbd, 0xa4, 0xbb, 0xc9, 0xb5, 0x91, 0xa3,
+ 0x8b, 0xac, 0xb6, 0xa8, 0x00, 0xd1, 0x00, 0xb9,
+ 0x00, 0xf6,
+ }, {
+ 0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa4, 0xb5, 0x95,
+ 0xa9, 0xbc, 0xa1, 0xbb, 0xc9, 0xb5, 0x91, 0xa3,
+ 0x8a, 0xad, 0xb6, 0xa8, 0x00, 0xd6, 0x00, 0xbf,
+ 0x00, 0xfc,
+ },
+};
+
+static const s6e8aa0_gamma_table s6e8aa0_gamma_tables_v96[GAMMA_LEVEL_NUM] = {
+ {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
+ 0xdf, 0x1f, 0xd7, 0xdc, 0xb7, 0xe1, 0xc0, 0xaf,
+ 0xc4, 0xd2, 0xd0, 0xcf, 0x00, 0x4d, 0x00, 0x40,
+ 0x00, 0x5f,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
+ 0xd5, 0x35, 0xcf, 0xdc, 0xc1, 0xe1, 0xbf, 0xb3,
+ 0xc1, 0xd2, 0xd1, 0xce, 0x00, 0x53, 0x00, 0x46,
+ 0x00, 0x67,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
+ 0xd2, 0x64, 0xcf, 0xdb, 0xc6, 0xe1, 0xbd, 0xb3,
+ 0xbd, 0xd2, 0xd2, 0xce, 0x00, 0x59, 0x00, 0x4b,
+ 0x00, 0x6e,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
+ 0xd0, 0x7c, 0xcf, 0xdb, 0xc9, 0xe0, 0xbc, 0xb4,
+ 0xbb, 0xcf, 0xd1, 0xcc, 0x00, 0x5f, 0x00, 0x50,
+ 0x00, 0x75,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
+ 0xd0, 0x8e, 0xd1, 0xdb, 0xcc, 0xdf, 0xbb, 0xb6,
+ 0xb9, 0xd0, 0xd1, 0xcd, 0x00, 0x63, 0x00, 0x54,
+ 0x00, 0x7a,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
+ 0xd1, 0x9e, 0xd5, 0xda, 0xcd, 0xdd, 0xbb, 0xb7,
+ 0xb9, 0xce, 0xce, 0xc9, 0x00, 0x68, 0x00, 0x59,
+ 0x00, 0x81,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
+ 0xd0, 0xa5, 0xd6, 0xda, 0xcf, 0xdd, 0xbb, 0xb7,
+ 0xb8, 0xcc, 0xcd, 0xc7, 0x00, 0x6c, 0x00, 0x5c,
+ 0x00, 0x86,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x1f, 0xfe,
+ 0xd0, 0xae, 0xd7, 0xd9, 0xd0, 0xdb, 0xb9, 0xb6,
+ 0xb5, 0xca, 0xcc, 0xc5, 0x00, 0x74, 0x00, 0x63,
+ 0x00, 0x90,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x1f, 0xf9,
+ 0xcf, 0xb0, 0xd6, 0xd9, 0xd1, 0xdb, 0xb9, 0xb6,
+ 0xb4, 0xca, 0xcb, 0xc5, 0x00, 0x77, 0x00, 0x66,
+ 0x00, 0x94,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x1f, 0xf7,
+ 0xcf, 0xb3, 0xd7, 0xd8, 0xd1, 0xd9, 0xb7, 0xb6,
+ 0xb3, 0xc9, 0xca, 0xc3, 0x00, 0x7b, 0x00, 0x69,
+ 0x00, 0x99,
+
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xfd, 0x2f, 0xf7,
+ 0xdf, 0xb5, 0xd6, 0xd8, 0xd1, 0xd8, 0xb6, 0xb5,
+ 0xb2, 0xca, 0xcb, 0xc4, 0x00, 0x7e, 0x00, 0x6c,
+ 0x00, 0x9d,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xfa, 0x2f, 0xf5,
+ 0xce, 0xb6, 0xd5, 0xd7, 0xd2, 0xd8, 0xb6, 0xb4,
+ 0xb0, 0xc7, 0xc9, 0xc1, 0x00, 0x84, 0x00, 0x71,
+ 0x00, 0xa5,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xf7, 0x2f, 0xf2,
+ 0xce, 0xb9, 0xd5, 0xd8, 0xd2, 0xd8, 0xb4, 0xb4,
+ 0xaf, 0xc7, 0xc9, 0xc1, 0x00, 0x87, 0x00, 0x73,
+ 0x00, 0xa8,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xf5, 0x2f, 0xf0,
+ 0xdf, 0xba, 0xd5, 0xd7, 0xd2, 0xd7, 0xb4, 0xb4,
+ 0xaf, 0xc5, 0xc7, 0xbf, 0x00, 0x8a, 0x00, 0x76,
+ 0x00, 0xac,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xf2, 0x2f, 0xed,
+ 0xcE, 0xbb, 0xd4, 0xd6, 0xd2, 0xd6, 0xb5, 0xb4,
+ 0xaF, 0xc5, 0xc7, 0xbf, 0x00, 0x8c, 0x00, 0x78,
+ 0x00, 0xaf,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xef, 0x2f, 0xeb,
+ 0xcd, 0xbb, 0xd2, 0xd7, 0xd3, 0xd6, 0xb3, 0xb4,
+ 0xae, 0xc5, 0xc6, 0xbe, 0x00, 0x91, 0x00, 0x7d,
+ 0x00, 0xb6,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xee, 0x2f, 0xea,
+ 0xce, 0xbd, 0xd4, 0xd6, 0xd2, 0xd5, 0xb2, 0xb3,
+ 0xad, 0xc3, 0xc4, 0xbb, 0x00, 0x94, 0x00, 0x7f,
+ 0x00, 0xba,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xec, 0x2f, 0xe8,
+ 0xce, 0xbe, 0xd3, 0xd6, 0xd3, 0xd5, 0xb2, 0xb2,
+ 0xac, 0xc3, 0xc5, 0xbc, 0x00, 0x96, 0x00, 0x81,
+ 0x00, 0xbd,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xeb, 0x2f, 0xe7,
+ 0xce, 0xbf, 0xd3, 0xd6, 0xd2, 0xd5, 0xb1, 0xb2,
+ 0xab, 0xc2, 0xc4, 0xbb, 0x00, 0x99, 0x00, 0x83,
+ 0x00, 0xc0,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xef, 0x5f, 0xe9,
+ 0xca, 0xbf, 0xd3, 0xd5, 0xd2, 0xd4, 0xb2, 0xb2,
+ 0xab, 0xc1, 0xc4, 0xba, 0x00, 0x9b, 0x00, 0x85,
+ 0x00, 0xc3,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xea, 0x5f, 0xe8,
+ 0xee, 0xbf, 0xd2, 0xd5, 0xd2, 0xd4, 0xb1, 0xb2,
+ 0xab, 0xc1, 0xc2, 0xb9, 0x00, 0x9D, 0x00, 0x87,
+ 0x00, 0xc6,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xe9, 0x5f, 0xe7,
+ 0xcd, 0xbf, 0xd2, 0xd6, 0xd2, 0xd4, 0xb1, 0xb2,
+ 0xab, 0xbe, 0xc0, 0xb7, 0x00, 0xa1, 0x00, 0x8a,
+ 0x00, 0xca,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xe8, 0x61, 0xe6,
+ 0xcd, 0xbf, 0xd1, 0xd6, 0xd3, 0xd4, 0xaf, 0xb0,
+ 0xa9, 0xbe, 0xc1, 0xb7, 0x00, 0xa3, 0x00, 0x8b,
+ 0x00, 0xce,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xe8, 0x62, 0xe5,
+ 0xcc, 0xc0, 0xd0, 0xd6, 0xd2, 0xd4, 0xaf, 0xb1,
+ 0xa9, 0xbd, 0xc0, 0xb6, 0x00, 0xa5, 0x00, 0x8d,
+ 0x00, 0xd0,
+ }, {
+ 0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xe7, 0x7f, 0xe3,
+ 0xcc, 0xc1, 0xd0, 0xd5, 0xd3, 0xd3, 0xae, 0xaf,
+ 0xa8, 0xbe, 0xc0, 0xb7, 0x00, 0xa8, 0x00, 0x90,
+ 0x00, 0xd3,
+ }
+};
+
+static const s6e8aa0_gamma_table s6e8aa0_gamma_tables_v32[GAMMA_LEVEL_NUM] = {
+ {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0x72, 0x5e, 0x6b,
+ 0xa1, 0xa7, 0x9a, 0xb4, 0xcb, 0xb8, 0x92, 0xac,
+ 0x97, 0xb4, 0xc3, 0xb5, 0x00, 0x4e, 0x00, 0x37,
+ 0x00, 0x58,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0x85, 0x71, 0x7d,
+ 0xa6, 0xb6, 0xa1, 0xb5, 0xca, 0xba, 0x93, 0xac,
+ 0x98, 0xb2, 0xc0, 0xaf, 0x00, 0x59, 0x00, 0x43,
+ 0x00, 0x64,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xa4, 0x94, 0x9e,
+ 0xa0, 0xbb, 0x9c, 0xc3, 0xd2, 0xc6, 0x93, 0xaa,
+ 0x95, 0xb7, 0xc2, 0xb4, 0x00, 0x65, 0x00, 0x50,
+ 0x00, 0x74,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xa1, 0xa6,
+ 0xa0, 0xb9, 0x9b, 0xc3, 0xd1, 0xc8, 0x90, 0xa6,
+ 0x90, 0xbb, 0xc3, 0xb7, 0x00, 0x6f, 0x00, 0x5b,
+ 0x00, 0x80,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xa6, 0x9d, 0x9f,
+ 0x9f, 0xb8, 0x9a, 0xc7, 0xd5, 0xcc, 0x90, 0xa5,
+ 0x8f, 0xb8, 0xc1, 0xb6, 0x00, 0x74, 0x00, 0x60,
+ 0x00, 0x85,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xb3, 0xae, 0xae,
+ 0x9e, 0xb7, 0x9a, 0xc8, 0xd6, 0xce, 0x91, 0xa6,
+ 0x90, 0xb6, 0xc0, 0xb3, 0x00, 0x78, 0x00, 0x65,
+ 0x00, 0x8a,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xa9, 0xa8,
+ 0xa3, 0xb9, 0x9e, 0xc4, 0xd3, 0xcb, 0x94, 0xa6,
+ 0x90, 0xb6, 0xbf, 0xb3, 0x00, 0x7c, 0x00, 0x69,
+ 0x00, 0x8e,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xaf, 0xaf, 0xa9,
+ 0xa5, 0xbc, 0xa2, 0xc7, 0xd5, 0xcd, 0x93, 0xa5,
+ 0x8f, 0xb4, 0xbd, 0xb1, 0x00, 0x83, 0x00, 0x70,
+ 0x00, 0x96,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xa9, 0xab, 0xa3,
+ 0xaa, 0xbf, 0xa7, 0xc5, 0xd3, 0xcb, 0x93, 0xa5,
+ 0x8f, 0xb2, 0xbb, 0xb0, 0x00, 0x86, 0x00, 0x74,
+ 0x00, 0x9b,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xb1, 0xb5, 0xab,
+ 0xab, 0xc0, 0xa9, 0xc7, 0xd4, 0xcc, 0x94, 0xa4,
+ 0x8f, 0xb1, 0xbb, 0xaf, 0x00, 0x8a, 0x00, 0x77,
+ 0x00, 0x9e,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xb2, 0xa7,
+ 0xae, 0xc2, 0xab, 0xc5, 0xd3, 0xca, 0x93, 0xa4,
+ 0x8f, 0xb1, 0xba, 0xae, 0x00, 0x8d, 0x00, 0x7b,
+ 0x00, 0xa2,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xa9, 0xaf, 0xa3,
+ 0xb0, 0xc3, 0xae, 0xc4, 0xd1, 0xc8, 0x93, 0xa4,
+ 0x8f, 0xb1, 0xba, 0xaf, 0x00, 0x8f, 0x00, 0x7d,
+ 0x00, 0xa5,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xb4, 0xbd, 0xaf,
+ 0xae, 0xc1, 0xab, 0xc2, 0xd0, 0xc6, 0x94, 0xa4,
+ 0x8f, 0xb1, 0xba, 0xaf, 0x00, 0x92, 0x00, 0x80,
+ 0x00, 0xa8,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xb0, 0xb9, 0xac,
+ 0xad, 0xc1, 0xab, 0xc4, 0xd1, 0xc7, 0x95, 0xa4,
+ 0x90, 0xb0, 0xb9, 0xad, 0x00, 0x95, 0x00, 0x84,
+ 0x00, 0xac,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xb6, 0xa7,
+ 0xaf, 0xc2, 0xae, 0xc5, 0xd1, 0xc7, 0x93, 0xa3,
+ 0x8e, 0xb0, 0xb9, 0xad, 0x00, 0x98, 0x00, 0x86,
+ 0x00, 0xaf,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xb4, 0xbf, 0xaf,
+ 0xad, 0xc1, 0xab, 0xc3, 0xd0, 0xc6, 0x94, 0xa3,
+ 0x8f, 0xaf, 0xb8, 0xac, 0x00, 0x9a, 0x00, 0x89,
+ 0x00, 0xb2,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xb0, 0xbc, 0xac,
+ 0xaf, 0xc2, 0xad, 0xc2, 0xcf, 0xc4, 0x94, 0xa3,
+ 0x90, 0xaf, 0xb8, 0xad, 0x00, 0x9c, 0x00, 0x8b,
+ 0x00, 0xb5,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xb9, 0xa7,
+ 0xb1, 0xc4, 0xaf, 0xc3, 0xcf, 0xc5, 0x94, 0xa3,
+ 0x8f, 0xae, 0xb7, 0xac, 0x00, 0x9f, 0x00, 0x8e,
+ 0x00, 0xb8,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xb9, 0xa7,
+ 0xaf, 0xc2, 0xad, 0xc1, 0xce, 0xc3, 0x95, 0xa3,
+ 0x90, 0xad, 0xb6, 0xab, 0x00, 0xa2, 0x00, 0x91,
+ 0x00, 0xbb,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xb1, 0xbe, 0xac,
+ 0xb1, 0xc4, 0xaf, 0xc1, 0xcd, 0xc1, 0x95, 0xa4,
+ 0x91, 0xad, 0xb6, 0xab, 0x00, 0xa4, 0x00, 0x93,
+ 0x00, 0xbd,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xbb, 0xa8,
+ 0xb3, 0xc5, 0xb2, 0xc1, 0xcd, 0xc2, 0x95, 0xa3,
+ 0x90, 0xad, 0xb6, 0xab, 0x00, 0xa6, 0x00, 0x95,
+ 0x00, 0xc0,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xbb, 0xa8,
+ 0xb0, 0xc3, 0xaf, 0xc2, 0xce, 0xc2, 0x94, 0xa2,
+ 0x90, 0xac, 0xb6, 0xab, 0x00, 0xa8, 0x00, 0x98,
+ 0x00, 0xc3,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xa9, 0xb8, 0xa5,
+ 0xb3, 0xc5, 0xb2, 0xc1, 0xcc, 0xc0, 0x95, 0xa2,
+ 0x90, 0xad, 0xb6, 0xab, 0x00, 0xaa, 0x00, 0x9a,
+ 0x00, 0xc5,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xb0, 0xc0, 0xac,
+ 0xb0, 0xc3, 0xaf, 0xc1, 0xcd, 0xc1, 0x95, 0xa2,
+ 0x90, 0xac, 0xb5, 0xa9, 0x00, 0xac, 0x00, 0x9c,
+ 0x00, 0xc8,
+ }, {
+ 0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xbd, 0xa8,
+ 0xaf, 0xc2, 0xaf, 0xc1, 0xcc, 0xc0, 0x95, 0xa2,
+ 0x90, 0xac, 0xb5, 0xaa, 0x00, 0xb1, 0x00, 0xa1,
+ 0x00, 0xcc,
+ },
+};
+
+static const struct s6e8aa0_variant s6e8aa0_variants[] = {
+ {
+ .version = 32,
+ .gamma_tables = s6e8aa0_gamma_tables_v32,
+ }, {
+ .version = 96,
+ .gamma_tables = s6e8aa0_gamma_tables_v96,
+ }, {
+ .version = 142,
+ .gamma_tables = s6e8aa0_gamma_tables_v142,
+ }, {
+ .version = 210,
+ .gamma_tables = s6e8aa0_gamma_tables_v142,
+ }
+};
+
+static void s6e8aa0_brightness_set(struct s6e8aa0 *ctx)
+{
+ const u8 *gamma = ctx->variant->gamma_tables[ctx->brightness];
+
+ if (ctx->version >= 142)
+ s6e8aa0_elvss_nvm_set(ctx);
+
+ s6e8aa0_dcs_write(ctx, gamma, GAMMA_TABLE_LEN);
+
+ /* update gamma table. */
+ s6e8aa0_dcs_write_seq_static(ctx, 0xf7, 0x03);
+}
+
+static void s6e8aa0_panel_init(struct s6e8aa0 *ctx)
+{
+ s6e8aa0_apply_level_1_key(ctx);
+ s6e8aa0_apply_level_2_key(ctx);
+ msleep(20);
+
+ s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_EXIT_SLEEP_MODE);
+ msleep(40);
+
+ s6e8aa0_panel_cond_set(ctx);
+ s6e8aa0_display_condition_set(ctx);
+ s6e8aa0_brightness_set(ctx);
+ s6e8aa0_etc_source_control(ctx);
+ s6e8aa0_etc_pentile_control(ctx);
+ s6e8aa0_elvss_nvm_set(ctx);
+ s6e8aa0_etc_power_control(ctx);
+ s6e8aa0_etc_elvss_control(ctx);
+ msleep(ctx->init_delay);
+}
+
+static void s6e8aa0_set_maximum_return_packet_size(struct s6e8aa0 *ctx,
+ int size)
+{
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+ const struct mipi_dsi_host_ops *ops = dsi->host->ops;
+ u8 buf[] = {size, 0};
+ struct mipi_dsi_msg msg = {
+ .channel = dsi->channel,
+ .type = MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE,
+ .tx_len = sizeof(buf),
+ .tx_buf = buf
+ };
+ int ret;
+
+ if (ctx->error < 0)
+ return;
+
+ if (!ops || !ops->transfer)
+ ret = -EIO;
+ else
+ ret = ops->transfer(dsi->host, &msg);
+
+ if (ret < 0) {
+ dev_err(ctx->dev,
+ "error %d setting maximum return packet size to %d\n",
+ ret, size);
+ ctx->error = ret;
+ }
+}
+
+static void s6e8aa0_read_mtp_id(struct s6e8aa0 *ctx)
+{
+ u8 id[3];
+ int ret, i;
+
+ ret = s6e8aa0_dcs_read(ctx, 0xd1, id, ARRAY_SIZE(id));
+ if (ret < ARRAY_SIZE(id) || id[0] == 0x00) {
+ dev_err(ctx->dev, "read id failed\n");
+ ctx->error = -EIO;
+ return;
+ }
+
+ dev_info(ctx->dev, "ID: 0x%2x, 0x%2x, 0x%2x\n", id[0], id[1], id[2]);
+
+ for (i = 0; i < ARRAY_SIZE(s6e8aa0_variants); ++i) {
+ if (id[1] == s6e8aa0_variants[i].version)
+ break;
+ }
+ if (i >= ARRAY_SIZE(s6e8aa0_variants)) {
+ dev_err(ctx->dev, "unsupported display version %d\n", id[1]);
+ ctx->error = -EINVAL;
+ }
+
+ ctx->variant = &s6e8aa0_variants[i];
+ ctx->version = id[1];
+ ctx->id = id[2];
+}
+
+static void s6e8aa0_set_sequence(struct s6e8aa0 *ctx)
+{
+ s6e8aa0_set_maximum_return_packet_size(ctx, 3);
+ s6e8aa0_read_mtp_id(ctx);
+ s6e8aa0_panel_init(ctx);
+ s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_SET_DISPLAY_ON);
+}
+
+static int s6e8aa0_power_on(struct s6e8aa0 *ctx)
+{
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+ if (ret < 0)
+ return ret;
+
+ msleep(ctx->power_on_delay);
+
+ gpio_set_value(ctx->reset_gpio, 1);
+ usleep_range(10000, 11000);
+ gpio_set_value(ctx->reset_gpio, 0);
+ usleep_range(10000, 11000);
+ gpio_set_value(ctx->reset_gpio, 1);
+
+ msleep(ctx->reset_delay);
+
+ return 0;
+}
+
+static int s6e8aa0_power_off(struct s6e8aa0 *ctx)
+{
+ return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+}
+
+static int s6e8aa0_disable(struct drm_panel *panel)
+{
+ struct s6e8aa0 *ctx = panel_to_s6e8aa0(panel);
+
+ s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_ENTER_SLEEP_MODE);
+ s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_SET_DISPLAY_OFF);
+ msleep(40);
+
+ s6e8aa0_clear_error(ctx);
+
+ return s6e8aa0_power_off(ctx);
+}
+
+static int s6e8aa0_enable(struct drm_panel *panel)
+{
+ struct s6e8aa0 *ctx = panel_to_s6e8aa0(panel);
+ int ret;
+
+ ret = s6e8aa0_power_on(ctx);
+ if (ret < 0)
+ return ret;
+
+ s6e8aa0_set_sequence(ctx);
+ ret = ctx->error;
+
+ if (ret < 0)
+ s6e8aa0_disable(panel);
+
+ return ret;
+}
+
+static int s6e8aa0_get_modes(struct drm_panel *panel)
+{
+ struct drm_connector *connector = panel->connector;
+ struct s6e8aa0 *ctx = panel_to_s6e8aa0(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 s6e8aa0_drm_funcs = {
+ .disable = s6e8aa0_disable,
+ .enable = s6e8aa0_enable,
+ .get_modes = s6e8aa0_get_modes,
+};
+
+static int s6e8aa0_parse_dt(struct s6e8aa0 *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;
+
+ ctx->reset_gpio = of_get_named_gpio(np, "reset-gpio", 0);
+ if (ctx->reset_gpio < 0) {
+ dev_err(dev, "failed to get reset-gpio DT property\n");
+ return ctx->reset_gpio;
+ }
+
+ of_property_read_u32(np, "power-on-delay", &ctx->power_on_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);
+
+ ctx->flip_horizontal = of_property_read_bool(np, "flip-horizontal");
+ ctx->flip_vertical = of_property_read_bool(np, "flip-vertical");
+
+ return 0;
+}
+
+static int s6e8aa0_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct s6e8aa0 *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(dev, sizeof(struct s6e8aa0), GFP_KERNEL);
+ if (!ctx) {
+ dev_err(dev, "failed to allocate s6e8aa0 structure.\n");
+ 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_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST
+ | MIPI_DSI_MODE_VIDEO_HFP | MIPI_DSI_MODE_VIDEO_HBP
+ | MIPI_DSI_MODE_VIDEO_HSA | MIPI_DSI_MODE_EOT_PACKET
+ | MIPI_DSI_MODE_VSYNC_FLUSH | MIPI_DSI_MODE_VIDEO_AUTO_VERT;
+
+ ret = s6e8aa0_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_info(dev, "failed to get regulators: %d\n", ret);
+ return ret;
+ }
+
+ ctx->brightness = GAMMA_LEVEL_NUM - 1;
+
+ drm_panel_init(&ctx->panel);
+ ctx->panel.dev = dev;
+ ctx->panel.funcs = &s6e8aa0_drm_funcs;
+
+ ret = drm_panel_add(&ctx->panel);
+ if (ret < 0)
+ return ret;
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret < 0)
+ drm_panel_remove(&ctx->panel);
+
+ return ret;
+}
+
+static int s6e8aa0_remove(struct mipi_dsi_device *dsi)
+{
+ struct s6e8aa0 *ctx = mipi_dsi_get_drvdata(dsi);
+
+ s6e8aa0_power_off(ctx);
+
+ mipi_dsi_detach(dsi);
+ drm_panel_remove(&ctx->panel);
+
+ return 0;
+}
+
+static struct of_device_id s6e8aa0_of_match[] = {
+ { .compatible = "samsung,s6e8aa0" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, s6e8aa0_of_match);
+
+static struct mipi_dsi_driver s6e8aa0_driver = {
+ .probe = s6e8aa0_probe,
+ .remove = s6e8aa0_remove,
+ .driver = {
+ .name = "panel_s6e8aa0",
+ .owner = THIS_MODULE,
+ .of_match_table = s6e8aa0_of_match,
+ },
+};
+module_mipi_dsi_driver(s6e8aa0_driver);
+
+MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
+MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
+MODULE_AUTHOR("Joongmock Shin <jmock.shin@samsung.com>");
+MODULE_AUTHOR("Eunchul Kim <chulspro.kim@samsung.com>");
+MODULE_AUTHOR("Tomasz Figa <t.figa@samsung.com>");
+MODULE_AUTHOR("Andrzej Hajda <a.hajda@samsung.com>");
+MODULE_DESCRIPTION("MIPI-DSI based s6e8aa0 AMOLED LCD Panel Driver");
+MODULE_LICENSE("GPL v2");
--
1.8.3.2