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linux_dsm_epyc7002/drivers/gpu/drm/panel/panel-asus-z00t-tm5p5-n35596.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

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// SPDX-License-Identifier: GPL-2.0-only
#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regulator/consumer.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
struct tm5p5_nt35596 {
struct drm_panel panel;
struct mipi_dsi_device *dsi;
struct regulator_bulk_data supplies[2];
struct gpio_desc *reset_gpio;
bool prepared;
};
static inline struct tm5p5_nt35596 *to_tm5p5_nt35596(struct drm_panel *panel)
{
return container_of(panel, struct tm5p5_nt35596, panel);
}
#define dsi_generic_write_seq(dsi, seq...) do { \
static const u8 d[] = { seq }; \
int ret; \
ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d)); \
if (ret < 0) \
return ret; \
} while (0)
#define dsi_dcs_write_seq(dsi, seq...) do { \
static const u8 d[] = { seq }; \
int ret; \
ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
if (ret < 0) \
return ret; \
} while (0)
static void tm5p5_nt35596_reset(struct tm5p5_nt35596 *ctx)
{
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
usleep_range(1000, 2000);
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
usleep_range(1000, 2000);
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
usleep_range(15000, 16000);
}
static int tm5p5_nt35596_on(struct tm5p5_nt35596 *ctx)
{
struct mipi_dsi_device *dsi = ctx->dsi;
dsi_generic_write_seq(dsi, 0xff, 0x05);
dsi_generic_write_seq(dsi, 0xfb, 0x01);
dsi_generic_write_seq(dsi, 0xc5, 0x31);
dsi_generic_write_seq(dsi, 0xff, 0x04);
dsi_generic_write_seq(dsi, 0x01, 0x84);
dsi_generic_write_seq(dsi, 0x05, 0x25);
dsi_generic_write_seq(dsi, 0x06, 0x01);
dsi_generic_write_seq(dsi, 0x07, 0x20);
dsi_generic_write_seq(dsi, 0x08, 0x06);
dsi_generic_write_seq(dsi, 0x09, 0x08);
dsi_generic_write_seq(dsi, 0x0a, 0x10);
dsi_generic_write_seq(dsi, 0x0b, 0x10);
dsi_generic_write_seq(dsi, 0x0c, 0x10);
dsi_generic_write_seq(dsi, 0x0d, 0x14);
dsi_generic_write_seq(dsi, 0x0e, 0x14);
dsi_generic_write_seq(dsi, 0x0f, 0x14);
dsi_generic_write_seq(dsi, 0x10, 0x14);
dsi_generic_write_seq(dsi, 0x11, 0x14);
dsi_generic_write_seq(dsi, 0x12, 0x14);
dsi_generic_write_seq(dsi, 0x17, 0xf3);
dsi_generic_write_seq(dsi, 0x18, 0xc0);
dsi_generic_write_seq(dsi, 0x19, 0xc0);
dsi_generic_write_seq(dsi, 0x1a, 0xc0);
dsi_generic_write_seq(dsi, 0x1b, 0xb3);
dsi_generic_write_seq(dsi, 0x1c, 0xb3);
dsi_generic_write_seq(dsi, 0x1d, 0xb3);
dsi_generic_write_seq(dsi, 0x1e, 0xb3);
dsi_generic_write_seq(dsi, 0x1f, 0xb3);
dsi_generic_write_seq(dsi, 0x20, 0xb3);
dsi_generic_write_seq(dsi, 0xfb, 0x01);
dsi_generic_write_seq(dsi, 0xff, 0x00);
dsi_generic_write_seq(dsi, 0xfb, 0x01);
dsi_generic_write_seq(dsi, 0x35, 0x01);
dsi_generic_write_seq(dsi, 0xd3, 0x06);
dsi_generic_write_seq(dsi, 0xd4, 0x04);
dsi_generic_write_seq(dsi, 0x5e, 0x0d);
dsi_generic_write_seq(dsi, 0x11, 0x00);
msleep(100);
dsi_generic_write_seq(dsi, 0x29, 0x00);
dsi_generic_write_seq(dsi, 0x53, 0x24);
return 0;
}
static int tm5p5_nt35596_off(struct tm5p5_nt35596 *ctx)
{
struct mipi_dsi_device *dsi = ctx->dsi;
struct device *dev = &dsi->dev;
int ret;
ret = mipi_dsi_dcs_set_display_off(dsi);
if (ret < 0) {
dev_err(dev, "Failed to set display off: %d\n", ret);
return ret;
}
msleep(60);
ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
if (ret < 0) {
dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
return ret;
}
dsi_dcs_write_seq(dsi, 0x4f, 0x01);
return 0;
}
static int tm5p5_nt35596_prepare(struct drm_panel *panel)
{
struct tm5p5_nt35596 *ctx = to_tm5p5_nt35596(panel);
struct device *dev = &ctx->dsi->dev;
int ret;
if (ctx->prepared)
return 0;
ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators: %d\n", ret);
return ret;
}
tm5p5_nt35596_reset(ctx);
ret = tm5p5_nt35596_on(ctx);
if (ret < 0) {
dev_err(dev, "Failed to initialize panel: %d\n", ret);
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
regulator_bulk_disable(ARRAY_SIZE(ctx->supplies),
ctx->supplies);
return ret;
}
ctx->prepared = true;
return 0;
}
static int tm5p5_nt35596_unprepare(struct drm_panel *panel)
{
struct tm5p5_nt35596 *ctx = to_tm5p5_nt35596(panel);
struct device *dev = &ctx->dsi->dev;
int ret;
if (!ctx->prepared)
return 0;
ret = tm5p5_nt35596_off(ctx);
if (ret < 0)
dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
regulator_bulk_disable(ARRAY_SIZE(ctx->supplies),
ctx->supplies);
ctx->prepared = false;
return 0;
}
static const struct drm_display_mode tm5p5_nt35596_mode = {
.clock = (1080 + 100 + 8 + 16) * (1920 + 4 + 2 + 4) * 60 / 1000,
.hdisplay = 1080,
.hsync_start = 1080 + 100,
.hsync_end = 1080 + 100 + 8,
.htotal = 1080 + 100 + 8 + 16,
.vdisplay = 1920,
.vsync_start = 1920 + 4,
.vsync_end = 1920 + 4 + 2,
.vtotal = 1920 + 4 + 2 + 4,
.width_mm = 68,
.height_mm = 121,
};
static int tm5p5_nt35596_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct drm_display_mode *mode;
mode = drm_mode_duplicate(connector->dev, &tm5p5_nt35596_mode);
if (!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 tm5p5_nt35596_panel_funcs = {
.prepare = tm5p5_nt35596_prepare,
.unprepare = tm5p5_nt35596_unprepare,
.get_modes = tm5p5_nt35596_get_modes,
};
static int tm5p5_nt35596_bl_update_status(struct backlight_device *bl)
{
struct mipi_dsi_device *dsi = bl_get_data(bl);
u16 brightness = bl->props.brightness;
int ret;
if (bl->props.power != FB_BLANK_UNBLANK ||
bl->props.fb_blank != FB_BLANK_UNBLANK ||
bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
brightness = 0;
dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
if (ret < 0)
return ret;
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
return 0;
}
static int tm5p5_nt35596_bl_get_brightness(struct backlight_device *bl)
{
struct mipi_dsi_device *dsi = bl_get_data(bl);
u16 brightness = bl->props.brightness;
int ret;
dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
if (ret < 0)
return ret;
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
return brightness & 0xff;
}
static const struct backlight_ops tm5p5_nt35596_bl_ops = {
.update_status = tm5p5_nt35596_bl_update_status,
.get_brightness = tm5p5_nt35596_bl_get_brightness,
};
static struct backlight_device *
tm5p5_nt35596_create_backlight(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
const struct backlight_properties props = {
.type = BACKLIGHT_RAW,
.brightness = 255,
.max_brightness = 255,
};
return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
&tm5p5_nt35596_bl_ops, &props);
}
static int tm5p5_nt35596_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct tm5p5_nt35596 *ctx;
int ret;
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
ctx->supplies[0].supply = "vdd";
ctx->supplies[1].supply = "vddio";
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)) {
ret = PTR_ERR(ctx->reset_gpio);
dev_err(dev, "Failed to get reset-gpios: %d\n", ret);
return ret;
}
ctx->dsi = dsi;
mipi_dsi_set_drvdata(dsi, ctx);
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_HSE | MIPI_DSI_MODE_EOT_PACKET |
MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;
drm_panel_init(&ctx->panel, dev, &tm5p5_nt35596_panel_funcs,
DRM_MODE_CONNECTOR_DSI);
ctx->panel.backlight = tm5p5_nt35596_create_backlight(dsi);
if (IS_ERR(ctx->panel.backlight)) {
ret = PTR_ERR(ctx->panel.backlight);
dev_err(dev, "Failed to create backlight: %d\n", ret);
return ret;
}
ret = drm_panel_add(&ctx->panel);
if (ret < 0) {
dev_err(dev, "Failed to add panel: %d\n", ret);
return ret;
}
ret = mipi_dsi_attach(dsi);
if (ret < 0) {
dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
return ret;
}
return 0;
}
static int tm5p5_nt35596_remove(struct mipi_dsi_device *dsi)
{
struct tm5p5_nt35596 *ctx = mipi_dsi_get_drvdata(dsi);
int ret;
ret = mipi_dsi_detach(dsi);
if (ret < 0)
dev_err(&dsi->dev,
"Failed to detach from DSI host: %d\n", ret);
drm_panel_remove(&ctx->panel);
return 0;
}
static const struct of_device_id tm5p5_nt35596_of_match[] = {
{ .compatible = "asus,z00t-tm5p5-n35596" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, tm5p5_nt35596_of_match);
static struct mipi_dsi_driver tm5p5_nt35596_driver = {
.probe = tm5p5_nt35596_probe,
.remove = tm5p5_nt35596_remove,
.driver = {
.name = "panel-tm5p5-nt35596",
.of_match_table = tm5p5_nt35596_of_match,
},
};
module_mipi_dsi_driver(tm5p5_nt35596_driver);
MODULE_AUTHOR("Konrad Dybcio <konradybcio@gmail.com>");
MODULE_DESCRIPTION("DRM driver for tm5p5 nt35596 1080p video mode dsi panel");
MODULE_LICENSE("GPL v2");
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