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linux_dsm_epyc7002/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c
Ville Syrjälä 0425662fdf drm: Nuke mode->vrefresh 
Get rid of mode->vrefresh and just calculate it on demand. Saves
a bit of space and avoids the cached value getting out of sync
with reality.

Mostly done with cocci, with the following manual fixups:
- Remove the now empty loop in drm_helper_probe_single_connector_modes()
- Fix __MODE() macro in ch7006_mode.c
- Fix DRM_MODE_ARG() macro in drm_modes.h
- Remove leftover comment from samsung_s6d16d0_mode
- Drop the TODO

@@
@@
struct drm_display_mode {
	...
-	int vrefresh;
	...
};

@@
identifier N;
expression E;
@@
struct drm_display_mode N = {
-	.vrefresh = E
};

@@
identifier N;
expression E;
@@
struct drm_display_mode N[...] = {
...,
{
-	.vrefresh = E
}
,...
};

@@
expression E;
@@
{
	DRM_MODE(...),
-	.vrefresh = E,
}

@@
identifier M, R;
@@
int drm_mode_vrefresh(const struct drm_display_mode *M)
{
  ...
- if (M->vrefresh > 0)
- 	R = M->vrefresh;
- else
  if (...) {
  ...
  }
  ...
}

@@
struct drm_display_mode *p;
expression E;
@@
(
- p->vrefresh = E;
|
- p->vrefresh
+ drm_mode_vrefresh(p)
)

@@
struct drm_display_mode s;
expression E;
@@
(
- s.vrefresh = E;
|
- s.vrefresh
+ drm_mode_vrefresh(&s)
)

@@
expression E;
@@
- drm_mode_vrefresh(E) ? drm_mode_vrefresh(E) : drm_mode_vrefresh(E)
+ drm_mode_vrefresh(E)

@find_substruct@
identifier X;
identifier S;
@@
struct X {
...
	struct drm_display_mode S;
...
};

@@
identifier find_substruct.S;
expression E;
identifier I;
@@
{
.S = {
-	.vrefresh = E
}
}

@@
identifier find_substruct.S;
identifier find_substruct.X;
expression E;
identifier I;
@@
struct X I[...] = {
...,
.S = {
-	.vrefresh = E
}
,...
};

v2: Drop TODO
v3: Rebase
v4: Rebase

Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jerry Han <hanxu5@huaqin.corp-partner.google.com>
Cc: Icenowy Zheng <icenowy@aosc.io>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Stefan Mavrodiev <stefan@olimex.com>
Cc: Robert Chiras <robert.chiras@nxp.com>
Cc: "Guido Günther" <agx@sigxcpu.org>
Cc: Purism Kernel Team <kernel@puri.sm>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: linux-amlogic@lists.infradead.org
Cc: nouveau@lists.freedesktop.org
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200428171940.19552-4-ville.syrjala@linux.intel.com
2020-05-27 14:31:42 +03:00

526 lines
13 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019-2020 Icenowy Zheng <icenowy@aosc.io>
*/
#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/regulator/consumer.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
#include <drm/drm_print.h>
#define K101_IM2BA02_INIT_CMD_LEN 2
static const char * const regulator_names[] = {
"dvdd",
"avdd",
"cvdd"
};
struct k101_im2ba02 {
struct drm_panel panel;
struct mipi_dsi_device *dsi;
struct regulator_bulk_data supplies[ARRAY_SIZE(regulator_names)];
struct gpio_desc *reset;
};
static inline struct k101_im2ba02 *panel_to_k101_im2ba02(struct drm_panel *panel)
{
return container_of(panel, struct k101_im2ba02, panel);
}
struct k101_im2ba02_init_cmd {
u8 data[K101_IM2BA02_INIT_CMD_LEN];
};
static const struct k101_im2ba02_init_cmd k101_im2ba02_init_cmds[] = {
/* Switch to page 0 */
{ .data = { 0xE0, 0x00 } },
/* Seems to be some password */
{ .data = { 0xE1, 0x93} },
{ .data = { 0xE2, 0x65 } },
{ .data = { 0xE3, 0xF8 } },
/* Lane number, 0x02 - 3 lanes, 0x03 - 4 lanes */
{ .data = { 0x80, 0x03 } },
/* Sequence control */
{ .data = { 0x70, 0x02 } },
{ .data = { 0x71, 0x23 } },
{ .data = { 0x72, 0x06 } },
/* Switch to page 1 */
{ .data = { 0xE0, 0x01 } },
/* Set VCOM */
{ .data = { 0x00, 0x00 } },
{ .data = { 0x01, 0x66 } },
/* Set VCOM_Reverse */
{ .data = { 0x03, 0x00 } },
{ .data = { 0x04, 0x25 } },
/* Set Gamma Power, VG[MS][PN] */
{ .data = { 0x17, 0x00 } },
{ .data = { 0x18, 0x6D } },
{ .data = { 0x19, 0x00 } },
{ .data = { 0x1A, 0x00 } },
{ .data = { 0x1B, 0xBF } }, /* VGMN = -4.5V */
{ .data = { 0x1C, 0x00 } },
/* Set Gate Power */
{ .data = { 0x1F, 0x3E } }, /* VGH_R = 15V */
{ .data = { 0x20, 0x28 } }, /* VGL_R = -11V */
{ .data = { 0x21, 0x28 } }, /* VGL_R2 = -11V */
{ .data = { 0x22, 0x0E } }, /* PA[6:4] = 0, PA[0] = 0 */
/* Set Panel */
{ .data = { 0x37, 0x09 } }, /* SS = 1, BGR = 1 */
/* Set RGBCYC */
{ .data = { 0x38, 0x04 } }, /* JDT = 100 column inversion */
{ .data = { 0x39, 0x08 } }, /* RGB_N_EQ1 */
{ .data = { 0x3A, 0x12 } }, /* RGB_N_EQ2 */
{ .data = { 0x3C, 0x78 } }, /* set EQ3 for TE_H */
{ .data = { 0x3D, 0xFF } }, /* set CHGEN_ON */
{ .data = { 0x3E, 0xFF } }, /* set CHGEN_OFF */
{ .data = { 0x3F, 0x7F } }, /* set CHGEN_OFF2 */
/* Set TCON parameter */
{ .data = { 0x40, 0x06 } }, /* RSO = 800 points */
{ .data = { 0x41, 0xA0 } }, /* LN = 1280 lines */
/* Set power voltage */
{ .data = { 0x55, 0x0F } }, /* DCDCM */
{ .data = { 0x56, 0x01 } },
{ .data = { 0x57, 0x69 } },
{ .data = { 0x58, 0x0A } },
{ .data = { 0x59, 0x0A } },
{ .data = { 0x5A, 0x45 } },
{ .data = { 0x5B, 0x15 } },
/* Set gamma */
{ .data = { 0x5D, 0x7C } },
{ .data = { 0x5E, 0x65 } },
{ .data = { 0x5F, 0x55 } },
{ .data = { 0x60, 0x49 } },
{ .data = { 0x61, 0x44 } },
{ .data = { 0x62, 0x35 } },
{ .data = { 0x63, 0x3A } },
{ .data = { 0x64, 0x23 } },
{ .data = { 0x65, 0x3D } },
{ .data = { 0x66, 0x3C } },
{ .data = { 0x67, 0x3D } },
{ .data = { 0x68, 0x5D } },
{ .data = { 0x69, 0x4D } },
{ .data = { 0x6A, 0x56 } },
{ .data = { 0x6B, 0x48 } },
{ .data = { 0x6C, 0x45 } },
{ .data = { 0x6D, 0x38 } },
{ .data = { 0x6E, 0x25 } },
{ .data = { 0x6F, 0x00 } },
{ .data = { 0x70, 0x7C } },
{ .data = { 0x71, 0x65 } },
{ .data = { 0x72, 0x55 } },
{ .data = { 0x73, 0x49 } },
{ .data = { 0x74, 0x44 } },
{ .data = { 0x75, 0x35 } },
{ .data = { 0x76, 0x3A } },
{ .data = { 0x77, 0x23 } },
{ .data = { 0x78, 0x3D } },
{ .data = { 0x79, 0x3C } },
{ .data = { 0x7A, 0x3D } },
{ .data = { 0x7B, 0x5D } },
{ .data = { 0x7C, 0x4D } },
{ .data = { 0x7D, 0x56 } },
{ .data = { 0x7E, 0x48 } },
{ .data = { 0x7F, 0x45 } },
{ .data = { 0x80, 0x38 } },
{ .data = { 0x81, 0x25 } },
{ .data = { 0x82, 0x00 } },
/* Switch to page 2, for GIP */
{ .data = { 0xE0, 0x02 } },
{ .data = { 0x00, 0x1E } },
{ .data = { 0x01, 0x1E } },
{ .data = { 0x02, 0x41 } },
{ .data = { 0x03, 0x41 } },
{ .data = { 0x04, 0x43 } },
{ .data = { 0x05, 0x43 } },
{ .data = { 0x06, 0x1F } },
{ .data = { 0x07, 0x1F } },
{ .data = { 0x08, 0x1F } },
{ .data = { 0x09, 0x1F } },
{ .data = { 0x0A, 0x1E } },
{ .data = { 0x0B, 0x1E } },
{ .data = { 0x0C, 0x1F } },
{ .data = { 0x0D, 0x47 } },
{ .data = { 0x0E, 0x47 } },
{ .data = { 0x0F, 0x45 } },
{ .data = { 0x10, 0x45 } },
{ .data = { 0x11, 0x4B } },
{ .data = { 0x12, 0x4B } },
{ .data = { 0x13, 0x49 } },
{ .data = { 0x14, 0x49 } },
{ .data = { 0x15, 0x1F } },
{ .data = { 0x16, 0x1E } },
{ .data = { 0x17, 0x1E } },
{ .data = { 0x18, 0x40 } },
{ .data = { 0x19, 0x40 } },
{ .data = { 0x1A, 0x42 } },
{ .data = { 0x1B, 0x42 } },
{ .data = { 0x1C, 0x1F } },
{ .data = { 0x1D, 0x1F } },
{ .data = { 0x1E, 0x1F } },
{ .data = { 0x1F, 0x1f } },
{ .data = { 0x20, 0x1E } },
{ .data = { 0x21, 0x1E } },
{ .data = { 0x22, 0x1f } },
{ .data = { 0x23, 0x46 } },
{ .data = { 0x24, 0x46 } },
{ .data = { 0x25, 0x44 } },
{ .data = { 0x26, 0x44 } },
{ .data = { 0x27, 0x4A } },
{ .data = { 0x28, 0x4A } },
{ .data = { 0x29, 0x48 } },
{ .data = { 0x2A, 0x48 } },
{ .data = { 0x2B, 0x1f } },
{ .data = { 0x2C, 0x1F } },
{ .data = { 0x2D, 0x1F } },
{ .data = { 0x2E, 0x42 } },
{ .data = { 0x2F, 0x42 } },
{ .data = { 0x30, 0x40 } },
{ .data = { 0x31, 0x40 } },
{ .data = { 0x32, 0x1E } },
{ .data = { 0x33, 0x1E } },
{ .data = { 0x34, 0x1F } },
{ .data = { 0x35, 0x1F } },
{ .data = { 0x36, 0x1E } },
{ .data = { 0x37, 0x1E } },
{ .data = { 0x38, 0x1F } },
{ .data = { 0x39, 0x48 } },
{ .data = { 0x3A, 0x48 } },
{ .data = { 0x3B, 0x4A } },
{ .data = { 0x3C, 0x4A } },
{ .data = { 0x3D, 0x44 } },
{ .data = { 0x3E, 0x44 } },
{ .data = { 0x3F, 0x46 } },
{ .data = { 0x40, 0x46 } },
{ .data = { 0x41, 0x1F } },
{ .data = { 0x42, 0x1F } },
{ .data = { 0x43, 0x1F } },
{ .data = { 0x44, 0x43 } },
{ .data = { 0x45, 0x43 } },
{ .data = { 0x46, 0x41 } },
{ .data = { 0x47, 0x41 } },
{ .data = { 0x48, 0x1E } },
{ .data = { 0x49, 0x1E } },
{ .data = { 0x4A, 0x1E } },
{ .data = { 0x4B, 0x1F } },
{ .data = { 0x4C, 0x1E } },
{ .data = { 0x4D, 0x1E } },
{ .data = { 0x4E, 0x1F } },
{ .data = { 0x4F, 0x49 } },
{ .data = { 0x50, 0x49 } },
{ .data = { 0x51, 0x4B } },
{ .data = { 0x52, 0x4B } },
{ .data = { 0x53, 0x45 } },
{ .data = { 0x54, 0x45 } },
{ .data = { 0x55, 0x47 } },
{ .data = { 0x56, 0x47 } },
{ .data = { 0x57, 0x1F } },
{ .data = { 0x58, 0x10 } },
{ .data = { 0x59, 0x00 } },
{ .data = { 0x5A, 0x00 } },
{ .data = { 0x5B, 0x30 } },
{ .data = { 0x5C, 0x02 } },
{ .data = { 0x5D, 0x40 } },
{ .data = { 0x5E, 0x01 } },
{ .data = { 0x5F, 0x02 } },
{ .data = { 0x60, 0x30 } },
{ .data = { 0x61, 0x01 } },
{ .data = { 0x62, 0x02 } },
{ .data = { 0x63, 0x6A } },
{ .data = { 0x64, 0x6A } },
{ .data = { 0x65, 0x05 } },
{ .data = { 0x66, 0x12 } },
{ .data = { 0x67, 0x74 } },
{ .data = { 0x68, 0x04 } },
{ .data = { 0x69, 0x6A } },
{ .data = { 0x6A, 0x6A } },
{ .data = { 0x6B, 0x08 } },
{ .data = { 0x6C, 0x00 } },
{ .data = { 0x6D, 0x04 } },
{ .data = { 0x6E, 0x04 } },
{ .data = { 0x6F, 0x88 } },
{ .data = { 0x70, 0x00 } },
{ .data = { 0x71, 0x00 } },
{ .data = { 0x72, 0x06 } },
{ .data = { 0x73, 0x7B } },
{ .data = { 0x74, 0x00 } },
{ .data = { 0x75, 0x07 } },
{ .data = { 0x76, 0x00 } },
{ .data = { 0x77, 0x5D } },
{ .data = { 0x78, 0x17 } },
{ .data = { 0x79, 0x1F } },
{ .data = { 0x7A, 0x00 } },
{ .data = { 0x7B, 0x00 } },
{ .data = { 0x7C, 0x00 } },
{ .data = { 0x7D, 0x03 } },
{ .data = { 0x7E, 0x7B } },
{ .data = { 0xE0, 0x04 } },
{ .data = { 0x2B, 0x2B } },
{ .data = { 0x2E, 0x44 } },
{ .data = { 0xE0, 0x01 } },
{ .data = { 0x0E, 0x01 } },
{ .data = { 0xE0, 0x03 } },
{ .data = { 0x98, 0x2F } },
{ .data = { 0xE0, 0x00 } },
{ .data = { 0xE6, 0x02 } },
{ .data = { 0xE7, 0x02 } },
{ .data = { 0x11, 0x00 } },
};
static const struct k101_im2ba02_init_cmd timed_cmds[] = {
{ .data = { 0x29, 0x00 } },
{ .data = { 0x35, 0x00 } },
};
static int k101_im2ba02_prepare(struct drm_panel *panel)
{
struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel);
struct mipi_dsi_device *dsi = ctx->dsi;
unsigned int i;
int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
if (ret)
return ret;
msleep(30);
gpiod_set_value(ctx->reset, 1);
msleep(50);
gpiod_set_value(ctx->reset, 0);
msleep(50);
gpiod_set_value(ctx->reset, 1);
msleep(200);
for (i = 0; i < ARRAY_SIZE(k101_im2ba02_init_cmds); i++) {
const struct k101_im2ba02_init_cmd *cmd = &k101_im2ba02_init_cmds[i];
ret = mipi_dsi_dcs_write_buffer(dsi, cmd->data, K101_IM2BA02_INIT_CMD_LEN);
if (ret < 0)
goto powerdown;
}
return 0;
powerdown:
gpiod_set_value(ctx->reset, 0);
msleep(50);
return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
}
static int k101_im2ba02_enable(struct drm_panel *panel)
{
struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel);
const struct k101_im2ba02_init_cmd *cmd = &timed_cmds[1];
int ret;
msleep(150);
ret = mipi_dsi_dcs_set_display_on(ctx->dsi);
if (ret < 0)
return ret;
msleep(50);
return mipi_dsi_dcs_write_buffer(ctx->dsi, cmd->data, K101_IM2BA02_INIT_CMD_LEN);
}
static int k101_im2ba02_disable(struct drm_panel *panel)
{
struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel);
return mipi_dsi_dcs_set_display_off(ctx->dsi);
}
static int k101_im2ba02_unprepare(struct drm_panel *panel)
{
struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel);
int ret;
ret = mipi_dsi_dcs_set_display_off(ctx->dsi);
if (ret < 0)
DRM_DEV_ERROR(panel->dev, "failed to set display off: %d\n",
ret);
ret = mipi_dsi_dcs_enter_sleep_mode(ctx->dsi);
if (ret < 0)
DRM_DEV_ERROR(panel->dev, "failed to enter sleep mode: %d\n",
ret);
msleep(200);
gpiod_set_value(ctx->reset, 0);
msleep(20);
return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
}
static const struct drm_display_mode k101_im2ba02_default_mode = {
.clock = 70000,
.hdisplay = 800,
.hsync_start = 800 + 20,
.hsync_end = 800 + 20 + 20,
.htotal = 800 + 20 + 20 + 20,
.vdisplay = 1280,
.vsync_start = 1280 + 16,
.vsync_end = 1280 + 16 + 4,
.vtotal = 1280 + 16 + 4 + 4,
.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
.width_mm = 136,
.height_mm = 217,
};
static int k101_im2ba02_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel);
struct drm_display_mode *mode;
mode = drm_mode_duplicate(connector->dev, &k101_im2ba02_default_mode);
if (!mode) {
DRM_DEV_ERROR(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n",
k101_im2ba02_default_mode.hdisplay,
k101_im2ba02_default_mode.vdisplay,
drm_mode_vrefresh(&k101_im2ba02_default_mode));
return -ENOMEM;
}
drm_mode_set_name(mode);
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
connector->display_info.width_mm = mode->width_mm;
connector->display_info.height_mm = mode->height_mm;
drm_mode_probed_add(connector, mode);
return 1;
}
static const struct drm_panel_funcs k101_im2ba02_funcs = {
.disable = k101_im2ba02_disable,
.unprepare = k101_im2ba02_unprepare,
.prepare = k101_im2ba02_prepare,
.enable = k101_im2ba02_enable,
.get_modes = k101_im2ba02_get_modes,
};
static int k101_im2ba02_dsi_probe(struct mipi_dsi_device *dsi)
{
struct k101_im2ba02 *ctx;
unsigned int i;
int ret;
ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dsi = dsi;
for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++)
ctx->supplies[i].supply = regulator_names[i];
ret = devm_regulator_bulk_get(&dsi->dev, ARRAY_SIZE(ctx->supplies),
ctx->supplies);
if (ret < 0) {
DRM_DEV_ERROR(&dsi->dev, "Couldn't get regulators\n");
return ret;
}
ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset)) {
DRM_DEV_ERROR(&dsi->dev, "Couldn't get our reset GPIO\n");
return PTR_ERR(ctx->reset);
}
drm_panel_init(&ctx->panel, &dsi->dev, &k101_im2ba02_funcs,
DRM_MODE_CONNECTOR_DSI);
ret = drm_panel_of_backlight(&ctx->panel);
if (ret)
return ret;
ret = drm_panel_add(&ctx->panel);
if (ret < 0)
return ret;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->lanes = 4;
ret = mipi_dsi_attach(dsi);
if (ret < 0) {
drm_panel_remove(&ctx->panel);
return ret;
}
return 0;
}
static int k101_im2ba02_dsi_remove(struct mipi_dsi_device *dsi)
{
struct k101_im2ba02 *ctx = mipi_dsi_get_drvdata(dsi);
mipi_dsi_detach(dsi);
drm_panel_remove(&ctx->panel);
return 0;
}
static const struct of_device_id k101_im2ba02_of_match[] = {
{ .compatible = "feixin,k101-im2ba02", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, k101_im2ba02_of_match);
static struct mipi_dsi_driver k101_im2ba02_driver = {
.probe = k101_im2ba02_dsi_probe,
.remove = k101_im2ba02_dsi_remove,
.driver = {
.name = "feixin-k101-im2ba02",
.of_match_table = k101_im2ba02_of_match,
},
};
module_mipi_dsi_driver(k101_im2ba02_driver);
MODULE_AUTHOR("Icenowy Zheng <icenowy@aosc.io>");
MODULE_DESCRIPTION("Feixin K101 IM2BA02 MIPI-DSI LCD panel");
MODULE_LICENSE("GPL");
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