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linux_dsm_epyc7002/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.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

788 lines
25 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
/*
* 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>
*/
#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.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 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] = {
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0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00,
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0x00, 0x00 },
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0x00, 0x00 },
{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
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0x00, 0x00 },
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0x00, 0x00 },
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0x00, 0x00 },
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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
};
enum s6e3ha2_type {
HA2_TYPE,
HF2_TYPE,
};
struct s6e3ha2_panel_desc {
const struct drm_display_mode *mode;
enum s6e3ha2_type type;
};
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;
const struct s6e3ha2_panel_desc *desc;
};
static int s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
return mipi_dsi_dcs_write_buffer(dsi, data, len);
}
#define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \
static const u8 d[] = { seq }; \
int ret; \
ret = s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \
if (ret < 0) \
return ret; \
} while (0)
#define s6e3ha2_call_write_func(ret, func) do { \
ret = (func); \
if (ret < 0) \
return ret; \
} while (0)
static int s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a);
return 0;
}
static int s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5);
return 0;
}
static int s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a);
return 0;
}
static int s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5);
return 0;
}
static int s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67);
s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09);
return 0;
}
static int s6e3ha2_freq_calibration(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c);
if (ctx->desc->type == HF2_TYPE)
s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67, 0x40, 0xc5);
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);
if (ctx->desc->type == HA2_TYPE)
s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62,
0x40, 0x80, 0xc0, 0x28, 0x28,
0x28, 0x28, 0x39, 0xc5);
else
s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x14, 0x6d,
0x40, 0x80, 0xc0, 0x28, 0x28,
0x28, 0x28, 0x39, 0xc5);
return 0;
}
static int s6e3ha2_aor_control(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10);
return 0;
}
static int s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a);
return 0;
}
static int s6e3ha2_acl_off(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00);
return 0;
}
static int s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40);
return 0;
}
static int s6e3ha2_test_global(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07);
return 0;
}
static int s6e3ha2_test(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19);
return 0;
}
static int s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xbd, 0x33, 0x11, 0x02,
0x16, 0x02, 0x16);
return 0;
}
static int s6e3ha2_pentile_control(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8);
return 0;
}
static int s6e3ha2_poc_global(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20);
return 0;
}
static int s6e3ha2_poc_setting(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08);
return 0;
}
static int s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51);
return 0;
}
static int s6e3ha2_err_fg_set(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44);
return 0;
}
static int s6e3ha2_hbm_off(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00);
return 0;
}
static int s6e3ha2_te_start_setting(struct s6e3ha2 *ctx)
{
s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09);
return 0;
}
static int 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);
return 0;
}
static int s6e3ha2_get_brightness(struct backlight_device *bl_dev)
{
return bl_dev->props.brightness;
}
static int 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] };
return 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, };
int ret;
memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT);
s6e3ha2_call_write_func(ret,
s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)));
s6e3ha2_call_write_func(ret, 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;
int ret;
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_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_update_gamma(ctx, brightness));
s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_set_vint(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
return 0;
}
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;
s6e3ha2_call_write_func(ret, mipi_dsi_dcs_exit_sleep_mode(dsi));
usleep_range(5000, 6000);
s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_single_dsi_set(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_freq_calibration(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx));
s6e3ha2_call_write_func(ret, 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;
s6e3ha2_call_write_func(ret, mipi_dsi_dcs_enter_sleep_mode(dsi));
s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_off(dsi));
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);
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;
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 */
s6e3ha2_call_write_func(ret,
mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK));
s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_touch_hsync_on1(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_pentile_control(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_poc_global(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_poc_setting(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx));
/* pcd setting off for TB */
s6e3ha2_call_write_func(ret, s6e3ha2_pcd_set_off(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_err_fg_set(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_te_start_setting(ctx));
/* brightness setting */
s6e3ha2_call_write_func(ret, s6e3ha2_set_brightness(ctx->bl_dev));
s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_caps_elvss_set(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_acl_off(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_acl_off_opr(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_hbm_off(ctx));
/* elvss temp compensation */
s6e3ha2_call_write_func(ret, s6e3ha2_test_global(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_test(ctx));
s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_on(dsi));
ctx->bl_dev->props.power = FB_BLANK_UNBLANK;
return 0;
}
static const struct drm_display_mode s6e3ha2_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,
.flags = 0,
};
static const struct s6e3ha2_panel_desc samsung_s6e3ha2 = {
.mode = &s6e3ha2_mode,
.type = HA2_TYPE,
};
static const struct drm_display_mode s6e3hf2_mode = {
.clock = 247856,
.hdisplay = 1600,
.hsync_start = 1600 + 1,
.hsync_end = 1600 + 1 + 1,
.htotal = 1600 + 1 + 1 + 1,
.vdisplay = 2560,
.vsync_start = 2560 + 1,
.vsync_end = 2560 + 1 + 1,
.vtotal = 2560 + 1 + 1 + 15,
.flags = 0,
};
static const struct s6e3ha2_panel_desc samsung_s6e3hf2 = {
.mode = &s6e3hf2_mode,
.type = HF2_TYPE,
};
static int s6e3ha2_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
struct drm_display_mode *mode;
mode = drm_mode_duplicate(connector->dev, ctx->desc->mode);
if (!mode) {
DRM_ERROR("failed to add mode %ux%ux@%u\n",
ctx->desc->mode->hdisplay, ctx->desc->mode->vdisplay,
drm_mode_vrefresh(ctx->desc->mode));
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;
ctx->desc = of_device_get_match_data(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, dev, &s6e3ha2_drm_funcs,
DRM_MODE_CONNECTOR_DSI);
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", .data = &samsung_s6e3ha2 },
{ .compatible = "samsung,s6e3hf2", .data = &samsung_s6e3hf2 },
{ }
};
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");
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