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Commit 57b2efce authored by Marek Vasut's avatar Marek Vasut Committed by Linus Walleij
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drm/panel/panel-sitronix-st7701: Add Densitron DMT028VGHMCMI-1A TFT 

Add support for Densitron DMT028VGHMCMI-1A TFT matrix into this driver.
This is a DSI-attached 480x640 2.83 inch panel.
Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220725151703.319939-2-marex@denx.de
parent e6e62748
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Showing with 182 additions and 5 deletions
drivers/gpu/drm/panel/panel-sitronix-st7701.c
View file @ 57b2efce
......@@ -42,13 +42,16 @@
/*
* Command2 with BK function selection.
*
* BIT[4, 0]: [CN2, BKXSEL]
* 10 = CMD2BK0, Command2 BK0
* 11 = CMD2BK1, Command2 BK1
* 00 = Command2 disable
* BIT[4].....CN2
* BIT[1:0]...BKXSEL
* 1:00 = CMD2BK0, Command2 BK0
* 1:01 = CMD2BK1, Command2 BK1
* 1:11 = CMD2BK3, Command2 BK3
* 0:00 = Command2 disable
*/
#define DSI_CMD2BK1_SEL 0x11
#define DSI_CMD2BK0_SEL 0x10
#define DSI_CMD2BK1_SEL 0x11
#define DSI_CMD2BK3_SEL 0x13
#define DSI_CMD2BKX_SEL_NONE 0x00
/* Command2, BK0 bytes */
......@@ -329,6 +332,78 @@ static void ts8550b_gip_sequence(struct st7701 *st7701)
0xFF, 0xFF, 0xFF, 0xF3, 0x27, 0x65, 0x40, 0x1F, 0xFF);
}
static void dmt028vghmcmi_1a_gip_sequence(struct st7701 *st7701)
{
ST7701_DSI(st7701, 0xEE, 0x42);
ST7701_DSI(st7701, 0xE0, 0x00, 0x00, 0x02);
ST7701_DSI(st7701, 0xE1,
0x04, 0xA0, 0x06, 0xA0,
0x05, 0xA0, 0x07, 0xA0,
0x00, 0x44, 0x44);
ST7701_DSI(st7701, 0xE2,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00);
ST7701_DSI(st7701, 0xE3,
0x00, 0x00, 0x22, 0x22);
ST7701_DSI(st7701, 0xE4, 0x44, 0x44);
ST7701_DSI(st7701, 0xE5,
0x0C, 0x90, 0xA0, 0xA0,
0x0E, 0x92, 0xA0, 0xA0,
0x08, 0x8C, 0xA0, 0xA0,
0x0A, 0x8E, 0xA0, 0xA0);
ST7701_DSI(st7701, 0xE6,
0x00, 0x00, 0x22, 0x22);
ST7701_DSI(st7701, 0xE7, 0x44, 0x44);
ST7701_DSI(st7701, 0xE8,
0x0D, 0x91, 0xA0, 0xA0,
0x0F, 0x93, 0xA0, 0xA0,
0x09, 0x8D, 0xA0, 0xA0,
0x0B, 0x8F, 0xA0, 0xA0);
ST7701_DSI(st7701, 0xEB,
0x00, 0x00, 0xE4, 0xE4,
0x44, 0x00, 0x00);
ST7701_DSI(st7701, 0xED,
0xFF, 0xF5, 0x47, 0x6F,
0x0B, 0xA1, 0xAB, 0xFF,
0xFF, 0xBA, 0x1A, 0xB0,
0xF6, 0x74, 0x5F, 0xFF);
ST7701_DSI(st7701, 0xEF,
0x08, 0x08, 0x08, 0x40,
0x3F, 0x64);
ST7701_DSI(st7701, DSI_CMD2BKX_SEL,
0x77, 0x01, 0x00, 0x00, DSI_CMD2BKX_SEL_NONE);
ST7701_DSI(st7701, DSI_CMD2BKX_SEL,
0x77, 0x01, 0x00, 0x00, DSI_CMD2BK3_SEL);
ST7701_DSI(st7701, 0xE6, 0x7C);
ST7701_DSI(st7701, 0xE8, 0x00, 0x0E);
ST7701_DSI(st7701, DSI_CMD2BKX_SEL,
0x77, 0x01, 0x00, 0x00, DSI_CMD2BKX_SEL_NONE);
ST7701_DSI(st7701, 0x11);
msleep(120);
ST7701_DSI(st7701, DSI_CMD2BKX_SEL,
0x77, 0x01, 0x00, 0x00, DSI_CMD2BK3_SEL);
ST7701_DSI(st7701, 0xE8, 0x00, 0x0C);
msleep(10);
ST7701_DSI(st7701, 0xE8, 0x00, 0x00);
ST7701_DSI(st7701, DSI_CMD2BKX_SEL,
0x77, 0x01, 0x00, 0x00, DSI_CMD2BKX_SEL_NONE);
ST7701_DSI(st7701, 0x11);
msleep(120);
ST7701_DSI(st7701, 0xE8, 0x00, 0x00);
ST7701_DSI(st7701, DSI_CMD2BKX_SEL,
0x77, 0x01, 0x00, 0x00, DSI_CMD2BKX_SEL_NONE);
ST7701_DSI(st7701, 0x3A, 0x70);
}
static int st7701_prepare(struct drm_panel *panel)
{
struct st7701 *st7701 = panel_to_st7701(panel);
......@@ -532,6 +607,107 @@ static const struct st7701_panel_desc ts8550b_desc = {
.gip_sequence = ts8550b_gip_sequence,
};
static const struct drm_display_mode dmt028vghmcmi_1a_mode = {
.clock = 22325,
.hdisplay = 480,
.hsync_start = 480 + 40,
.hsync_end = 480 + 40 + 4,
.htotal = 480 + 40 + 4 + 20,
.vdisplay = 640,
.vsync_start = 640 + 2,
.vsync_end = 640 + 2 + 40,
.vtotal = 640 + 2 + 40 + 16,
.width_mm = 56,
.height_mm = 78,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
};
static const struct st7701_panel_desc dmt028vghmcmi_1a_desc = {
.mode = &dmt028vghmcmi_1a_mode,
.lanes = 2,
.format = MIPI_DSI_FMT_RGB888,
.panel_sleep_delay = 5, /* panel need extra 5ms for sleep out cmd */
.pv_gamma = {
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC0_MASK, 0),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC4_MASK, 0x10),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC8_MASK, 0x17),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC16_MASK, 0xd),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC24_MASK, 0x11),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC52_MASK, 0x6),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC80_MASK, 0x5),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC108_MASK, 0x8),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC147_MASK, 0x7),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC175_MASK, 0x1f),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC203_MASK, 0x4),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC231_MASK, 0x11),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC239_MASK, 0xe),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC247_MASK, 0x29),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC251_MASK, 0x30),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC255_MASK, 0x1f)
},
.nv_gamma = {
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC0_MASK, 0),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC4_MASK, 0xd),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC8_MASK, 0x14),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC16_MASK, 0xe),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC24_MASK, 0x11),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC52_MASK, 0x6),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC80_MASK, 0x4),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC108_MASK, 0x8),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC147_MASK, 0x8),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC175_MASK, 0x20),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC203_MASK, 0x5),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC231_MASK, 0x13),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC239_MASK, 0x13),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC247_MASK, 0x26),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC251_MASK, 0x30),
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_VC255_MASK, 0x1f)
},
.nlinv = 1,
.vop_uv = 4800000,
.vcom_uv = 1650000,
.vgh_mv = 15000,
.vgl_mv = -10170,
.avdd_mv = 6600,
.avcl_mv = -4400,
.gamma_op_bias = OP_BIAS_MIDDLE,
.input_op_bias = OP_BIAS_MIN,
.output_op_bias = OP_BIAS_MIN,
.t2d_ns = 1600,
.t3d_ns = 10400,
.eot_en = true,
.gip_sequence = dmt028vghmcmi_1a_gip_sequence,
};
static int st7701_dsi_probe(struct mipi_dsi_device *dsi)
{
const struct st7701_panel_desc *desc;
......@@ -598,6 +774,7 @@ static void st7701_dsi_remove(struct mipi_dsi_device *dsi)
}
static const struct of_device_id st7701_of_match[] = {
{ .compatible = "densitron,dmt028vghmcmi-1a", .data = &dmt028vghmcmi_1a_desc },
{ .compatible = "techstar,ts8550b", .data = &ts8550b_desc },
{ }
};
......
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