Release 4.11 drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
/*
* Sony ACX565AKM LCD Panel driver
*
* Copyright (C) 2010 Nokia Corporation
*
* Original Driver Author: Imre Deak <imre.deak@nokia.com>
* Based on panel-generic.c by Tomi Valkeinen <tomi.valkeinen@nokia.com>
* Adapted to new DSS2 framework: Roger Quadros <roger.quadros@nokia.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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/spi/spi.h>
#include <linux/jiffies.h>
#include <linux/sched.h>
#include <linux/backlight.h>
#include <linux/fb.h>
#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <video/omapfb_dss.h>
#include <video/omap-panel-data.h>
#define MIPID_CMD_READ_DISP_ID 0x04
#define MIPID_CMD_READ_RED 0x06
#define MIPID_CMD_READ_GREEN 0x07
#define MIPID_CMD_READ_BLUE 0x08
#define MIPID_CMD_READ_DISP_STATUS 0x09
#define MIPID_CMD_RDDSDR 0x0F
#define MIPID_CMD_SLEEP_IN 0x10
#define MIPID_CMD_SLEEP_OUT 0x11
#define MIPID_CMD_DISP_OFF 0x28
#define MIPID_CMD_DISP_ON 0x29
#define MIPID_CMD_WRITE_DISP_BRIGHTNESS 0x51
#define MIPID_CMD_READ_DISP_BRIGHTNESS 0x52
#define MIPID_CMD_WRITE_CTRL_DISP 0x53
#define CTRL_DISP_BRIGHTNESS_CTRL_ON (1 << 5)
#define CTRL_DISP_AMBIENT_LIGHT_CTRL_ON (1 << 4)
#define CTRL_DISP_BACKLIGHT_ON (1 << 2)
#define CTRL_DISP_AUTO_BRIGHTNESS_ON (1 << 1)
#define MIPID_CMD_READ_CTRL_DISP 0x54
#define MIPID_CMD_WRITE_CABC 0x55
#define MIPID_CMD_READ_CABC 0x56
#define MIPID_VER_LPH8923 3
#define MIPID_VER_LS041Y3 4
#define MIPID_VER_L4F00311 8
#define MIPID_VER_ACX565AKM 9
struct panel_drv_data {
struct omap_dss_device dssdev;
struct omap_dss_device *in;
int reset_gpio;
int datapairs;
struct omap_video_timings videomode;
char *name;
int enabled;
int model;
int revision;
u8 display_id[3];
unsigned has_bc:1;
unsigned has_cabc:1;
unsigned cabc_mode;
unsigned long hw_guard_end; /* next value of jiffies
when we can issue the
next sleep in/out command */
unsigned long hw_guard_wait; /* max guard time in jiffies */
struct spi_device *spi;
struct mutex mutex;
struct backlight_device *bl_dev;
};
static const struct omap_video_timings acx565akm_panel_timings = {
.x_res = 800,
.y_res = 480,
.pixelclock = 24000000,
.hfp = 28,
.hsw = 4,
.hbp = 24,
.vfp = 3,
.vsw = 3,
.vbp = 4,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE,
};
#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
static void acx565akm_transfer(struct panel_drv_data *ddata, int cmd,
const u8 *wbuf, int wlen, u8 *rbuf, int rlen)
{
struct spi_message m;
struct spi_transfer *x, xfer[5];
int r;
BUG_ON(ddata->spi == NULL);
spi_message_init(&m);
memset(xfer, 0, sizeof(xfer));
x = &xfer[0];
cmd &= 0xff;
x->tx_buf = &cmd;
x->bits_per_word = 9;
x->len = 2;
if (rlen > 1 && wlen == 0) {
/*
* Between the command and the response data there is a
* dummy clock cycle. Add an extra bit after the command
* word to account for this.
*/
x->bits_per_word = 10;
cmd <<= 1;
}
spi_message_add_tail(x, &m);
if (wlen) {
x++;
x->tx_buf = wbuf;
x->len = wlen;
x->bits_per_word = 9;
spi_message_add_tail(x, &m);
}
if (rlen) {
x++;
x->rx_buf = rbuf;
x->len = rlen;
spi_message_add_tail(x, &m);
}
r = spi_sync(ddata->spi, &m);
if (r < 0)
dev_dbg(&ddata->spi->dev, "spi_sync %d\n", r);
}
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static inline void acx565akm_cmd(struct panel_drv_data *ddata, int cmd)
{
acx565akm_transfer(ddata, cmd, NULL, 0, NULL, 0);
}
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static inline void acx565akm_write(struct panel_drv_data *ddata,
int reg, const u8 *buf, int len)
{
acx565akm_transfer(ddata, reg, buf, len, NULL, 0);
}
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static inline void acx565akm_read(struct panel_drv_data *ddata,
int reg, u8 *buf, int len)
{
acx565akm_transfer(ddata, reg, NULL, 0, buf, len);
}
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static void hw_guard_start(struct panel_drv_data *ddata, int guard_msec)
{
ddata->hw_guard_wait = msecs_to_jiffies(guard_msec);
ddata->hw_guard_end = jiffies + ddata->hw_guard_wait;
}
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static void hw_guard_wait(struct panel_drv_data *ddata)
{
unsigned long wait = ddata->hw_guard_end - jiffies;
if ((long)wait > 0 && wait <= ddata->hw_guard_wait) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(wait);
}
}
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static void set_sleep_mode(struct panel_drv_data *ddata, int on)
{
int cmd;
if (on)
cmd = MIPID_CMD_SLEEP_IN;
else
cmd = MIPID_CMD_SLEEP_OUT;
/*
* We have to keep 120msec between sleep in/out commands.
* (8.2.15, 8.2.16).
*/
hw_guard_wait(ddata);
acx565akm_cmd(ddata, cmd);
hw_guard_start(ddata, 120);
}
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static void set_display_state(struct panel_drv_data *ddata, int enabled)
{
int cmd = enabled ? MIPID_CMD_DISP_ON : MIPID_CMD_DISP_OFF;
acx565akm_cmd(ddata, cmd);
}
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static int panel_enabled(struct panel_drv_data *ddata)
{
u32 disp_status;
int enabled;
acx565akm_read(ddata, MIPID_CMD_READ_DISP_STATUS,
(u8 *)&disp_status, 4);
disp_status = __be32_to_cpu(disp_status);
enabled = (disp_status & (1 << 17)) && (disp_status & (1 << 10));
dev_dbg(&ddata->spi->dev,
"LCD panel %senabled by bootloader (status 0x%04x)\n",
enabled ? "" : "not ", disp_status);
return enabled;
}
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static int panel_detect(struct panel_drv_data *ddata)
{
acx565akm_read(ddata, MIPID_CMD_READ_DISP_ID, ddata->display_id, 3);
dev_dbg(&ddata->spi->dev, "MIPI display ID: %02x%02x%02x\n",
ddata->display_id[0],
ddata->display_id[1],
ddata->display_id[2]);
switch (ddata->display_id[0]) {
case 0x10:
ddata->model = MIPID_VER_ACX565AKM;
ddata->name = "acx565akm";
ddata->has_bc = 1;
ddata->has_cabc = 1;
break;
case 0x29:
ddata->model = MIPID_VER_L4F00311;
ddata->name = "l4f00311";
break;
case 0x45:
ddata->model = MIPID_VER_LPH8923;
ddata->name = "lph8923";
break;
case 0x83:
ddata->model = MIPID_VER_LS041Y3;
ddata->name = "ls041y3";
break;
default:
ddata->name = "unknown";
dev_err(&ddata->spi->dev, "invalid display ID\n");
return -ENODEV;
}
ddata->revision = ddata->display_id[1];
dev_info(&ddata->spi->dev, "omapfb: %s rev %02x LCD detected\n",
ddata->name, ddata->revision);
return 0;
}
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/*----------------------Backlight Control-------------------------*/
static void enable_backlight_ctrl(struct panel_drv_data *ddata, int enable)
{
u16 ctrl;
acx565akm_read(ddata, MIPID_CMD_READ_CTRL_DISP, (u8 *)&ctrl, 1);
if (enable) {
ctrl |= CTRL_DISP_BRIGHTNESS_CTRL_ON |
CTRL_DISP_BACKLIGHT_ON;
} else {
ctrl &= ~(CTRL_DISP_BRIGHTNESS_CTRL_ON |
CTRL_DISP_BACKLIGHT_ON);
}
ctrl |= 1 << 8;
acx565akm_write(ddata, MIPID_CMD_WRITE_CTRL_DISP, (u8 *)&ctrl, 2);
}
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static void set_cabc_mode(struct panel_drv_data *ddata, unsigned mode)
{
u16 cabc_ctrl;
ddata->cabc_mode = mode;
if (!ddata->enabled)
return;
cabc_ctrl = 0;
acx565akm_read(ddata, MIPID_CMD_READ_CABC, (u8 *)&cabc_ctrl, 1);
cabc_ctrl &= ~3;
cabc_ctrl |= (1 << 8) | (mode & 3);
acx565akm_write(ddata, MIPID_CMD_WRITE_CABC, (u8 *)&cabc_ctrl, 2);
}
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static unsigned get_cabc_mode(struct panel_drv_data *ddata)
{
return ddata->cabc_mode;
}
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static unsigned get_hw_cabc_mode(struct panel_drv_data *ddata)
{
u8 cabc_ctrl;
acx565akm_read(ddata, MIPID_CMD_READ_CABC, &cabc_ctrl, 1);
return cabc_ctrl & 3;
}
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static void acx565akm_set_brightness(struct panel_drv_data *ddata, int level)
{
int bv;
bv = level | (1 << 8);
acx565akm_write(ddata, MIPID_CMD_WRITE_DISP_BRIGHTNESS, (u8 *)&bv, 2);
if (level)
enable_backlight_ctrl(ddata, 1);
else
enable_backlight_ctrl(ddata, 0);
}
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static int acx565akm_get_actual_brightness(struct panel_drv_data *ddata)
{
u8 bv;
acx565akm_read(ddata, MIPID_CMD_READ_DISP_BRIGHTNESS, &bv, 1);
return bv;
}
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static int acx565akm_bl_update_status(struct backlight_device *dev)
{
struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
int level;
dev_dbg(&ddata->spi->dev, "%s\n", __func__);
if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
dev->props.power == FB_BLANK_UNBLANK)
level = dev->props.brightness;
else
level = 0;
if (ddata->has_bc)
acx565akm_set_brightness(ddata, level);
else
return -ENODEV;
return 0;
}
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static int acx565akm_bl_get_intensity(struct backlight_device *dev)
{
struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
dev_dbg(&dev->dev, "%s\n", __func__);
if (!ddata->has_bc)
return -ENODEV;
if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
dev->props.power == FB_BLANK_UNBLANK) {
if (ddata->has_bc)
return acx565akm_get_actual_brightness(ddata);
else
return dev->props.brightness;
}
return 0;
}
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static int acx565akm_bl_update_status_locked(struct backlight_device *dev)
{
struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
int r;
mutex_lock(&ddata->mutex);
r = acx565akm_bl_update_status(dev);
mutex_unlock(&ddata->mutex);
return r;
}
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static int acx565akm_bl_get_intensity_locked(struct backlight_device *dev)
{
struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
int r;
mutex_lock(&ddata->mutex);
r = acx565akm_bl_get_intensity(dev);
mutex_unlock(&ddata->mutex);
return r;
}
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static const struct backlight_ops acx565akm_bl_ops = {
.get_brightness = acx565akm_bl_get_intensity_locked,
.update_status = acx565akm_bl_update_status_locked,
};
/*--------------------Auto Brightness control via Sysfs---------------------*/
static const char * const cabc_modes[] = {
"off", /* always used when CABC is not supported */
"ui",
"still-image",
"moving-image",
};
static ssize_t show_cabc_mode(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct panel_drv_data *ddata = dev_get_drvdata(dev);
const char *mode_str;
int mode;
int len;
if (!ddata->has_cabc)
mode = 0;
else
mode = get_cabc_mode(ddata);
mode_str = "unknown";
if (mode >= 0 && mode < ARRAY_SIZE(cabc_modes))
mode_str = cabc_modes[mode];
len = snprintf(buf, PAGE_SIZE, "%s\n", mode_str);
return len < PAGE_SIZE - 1 ? len : PAGE_SIZE - 1;
}
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static ssize_t store_cabc_mode(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct panel_drv_data *ddata = dev_get_drvdata(dev);
int i;
for (i = 0; i < ARRAY_SIZE(cabc_modes); i++) {
const char *mode_str = cabc_modes[i];
int cmp_len = strlen(mode_str);
if (count > 0 && buf[count - 1] == '\n')
count--;
if (count != cmp_len)
continue;
if (strncmp(buf, mode_str, cmp_len) == 0)
break;
}
if (i == ARRAY_SIZE(cabc_modes))
return -EINVAL;
if (!ddata->has_cabc && i != 0)
return -EINVAL;
mutex_lock(&ddata->mutex);
set_cabc_mode(ddata, i);
mutex_unlock(&ddata->mutex);
return count;
}
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static ssize_t show_cabc_available_modes(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct panel_drv_data *ddata = dev_get_drvdata(dev);
int len;
int i;
if (!ddata->has_cabc)
return snprintf(buf, PAGE_SIZE, "%s\n", cabc_modes[0]);
for (i = 0, len = 0;
len < PAGE_SIZE && i < ARRAY_SIZE(cabc_modes); i++)
len += snprintf(&buf[len], PAGE_SIZE - len, "%s%s%s",
i ? " " : "", cabc_modes[i],
i == ARRAY_SIZE(cabc_modes) - 1 ? "\n" : "");
return len < PAGE_SIZE ? len : PAGE_SIZE - 1;
}
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static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR,
show_cabc_mode, store_cabc_mode);
static DEVICE_ATTR(cabc_available_modes, S_IRUGO,
show_cabc_available_modes, NULL);
static struct attribute *bldev_attrs[] = {
&dev_attr_cabc_mode.attr,
&dev_attr_cabc_available_modes.attr,
NULL,
};
static struct attribute_group bldev_attr_group = {
.attrs = bldev_attrs,
};
static int acx565akm_connect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
if (omapdss_device_is_connected(dssdev))
return 0;
r = in->ops.sdi->connect(in, dssdev);
if (r)
return r;
return 0;
}
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static void acx565akm_disconnect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
if (!omapdss_device_is_connected(dssdev))
return;
in->ops.sdi->disconnect(in, dssdev);
}
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static int acx565akm_panel_power_on(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
dev_dbg(&ddata->spi->dev, "%s\n", __func__);
in->ops.sdi->set_timings(in, &ddata->videomode);
if (ddata->datapairs > 0)
in->ops.sdi->set_datapairs(in, ddata->datapairs);
r = in->ops.sdi->enable(in);
if (r) {
pr_err("%s sdi enable failed\n", __func__);
return r;
}
/*FIXME tweak me */
msleep(50);
if (gpio_is_valid(ddata->reset_gpio))
gpio_set_value(ddata->reset_gpio, 1);
if (ddata->enabled) {
dev_dbg(&ddata->spi->dev, "panel already enabled\n");
return 0;
}
/*
* We have to meet all the following delay requirements:
* 1. tRW: reset pulse width 10usec (7.12.1)
* 2. tRT: reset cancel time 5msec (7.12.1)
* 3. Providing PCLK,HS,VS signals for 2 frames = ~50msec worst
* case (7.6.2)
* 4. 120msec before the sleep out command (7.12.1)
*/
msleep(120);
set_sleep_mode(ddata, 0);
ddata->enabled = 1;
/* 5msec between sleep out and the next command. (8.2.16) */
usleep_range(5000, 10000);
set_display_state(ddata, 1);
set_cabc_mode(ddata, ddata->cabc_mode);
return acx565akm_bl_update_status(ddata->bl_dev);
}
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static void acx565akm_panel_power_off(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
dev_dbg(dssdev->dev, "%s\n", __func__);
if (!ddata->enabled)
return;
set_display_state(ddata, 0);
set_sleep_mode(ddata, 1);
ddata->enabled = 0;
/*
* We have to provide PCLK,HS,VS signals for 2 frames (worst case
* ~50msec) after sending the sleep in command and asserting the
* reset signal. We probably could assert the reset w/o the delay
* but we still delay to avoid possible artifacts. (7.6.1)
*/
msleep(50);
if (gpio_is_valid(ddata->reset_gpio))
gpio_set_value(ddata->reset_gpio, 0);
/* FIXME need to tweak this delay */
msleep(100);
in->ops.sdi->disable(in);
}
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static int acx565akm_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
int r;
dev_dbg(dssdev->dev, "%s\n", __func__);
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
mutex_lock(&ddata->mutex);
r = acx565akm_panel_power_on(dssdev);
mutex_unlock(&ddata->mutex);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomi Valkeinen | 96 | 100.00% | 1 | 100.00% |
| Total | 96 | 100.00% | 1 | 100.00% |
static void acx565akm_disable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
dev_dbg(dssdev->dev, "%s\n", __func__);
if (!omapdss_device_is_enabled(dssdev))
return;
mutex_lock(&ddata->mutex);
acx565akm_panel_power_off(dssdev);
mutex_unlock(&ddata->mutex);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}
Contributors
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| Tomi Valkeinen | 68 | 100.00% | 1 | 100.00% |
| Total | 68 | 100.00% | 1 | 100.00% |
static void acx565akm_set_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
ddata->videomode = *timings;
dssdev->panel.timings = *timings;
in->ops.sdi->set_timings(in, timings);
}
Contributors
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| Tomi Valkeinen | 64 | 100.00% | 1 | 100.00% |
| Total | 64 | 100.00% | 1 | 100.00% |
static void acx565akm_get_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*timings = ddata->videomode;
}
Contributors
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| Tomi Valkeinen | 33 | 100.00% | 1 | 100.00% |
| Total | 33 | 100.00% | 1 | 100.00% |
static int acx565akm_check_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
return in->ops.sdi->check_timings(in, timings);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomi Valkeinen | 49 | 100.00% | 1 | 100.00% |
| Total | 49 | 100.00% | 1 | 100.00% |
static struct omap_dss_driver acx565akm_ops = {
.connect = acx565akm_connect,
.disconnect = acx565akm_disconnect,
.enable = acx565akm_enable,
.disable = acx565akm_disable,
.set_timings = acx565akm_set_timings,
.get_timings = acx565akm_get_timings,
.check_timings = acx565akm_check_timings,
.get_resolution = omapdss_default_get_resolution,
};
static int acx565akm_probe_pdata(struct spi_device *spi)
{
const struct panel_acx565akm_platform_data *pdata;
struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
struct omap_dss_device *dssdev, *in;
pdata = dev_get_platdata(&spi->dev);
ddata->reset_gpio = pdata->reset_gpio;
in = omap_dss_find_output(pdata->source);
if (in == NULL) {
dev_err(&spi->dev, "failed to find video source '%s'\n",
pdata->source);
return -EPROBE_DEFER;
}
ddata->in = in;
ddata->datapairs = pdata->datapairs;
dssdev = &ddata->dssdev;
dssdev->name = pdata->name;
return 0;
}
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| Tomi Valkeinen | 123 | 100.00% | 1 | 100.00% |
| Total | 123 | 100.00% | 1 | 100.00% |
static int acx565akm_probe_of(struct spi_device *spi)
{
struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
struct device_node *np = spi->dev.of_node;
ddata->reset_gpio = of_get_named_gpio(np, "reset-gpios", 0);
ddata->in = omapdss_of_find_source_for_first_ep(np);
if (IS_ERR(ddata->in)) {
dev_err(&spi->dev, "failed to find video source\n");
return PTR_ERR(ddata->in);
}
return 0;
}
Contributors
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| Tomi Valkeinen | 89 | 100.00% | 1 | 100.00% |
| Total | 89 | 100.00% | 1 | 100.00% |
static int acx565akm_probe(struct spi_device *spi)
{
struct panel_drv_data *ddata;
struct omap_dss_device *dssdev;
struct backlight_device *bldev;
int max_brightness, brightness;
struct backlight_properties props;
int r;
dev_dbg(&spi->dev, "%s\n", __func__);
spi->mode = SPI_MODE_3;
ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL);
if (ddata == NULL)
return -ENOMEM;
dev_set_drvdata(&spi->dev, ddata);
ddata->spi = spi;
mutex_init(&ddata->mutex);
if (dev_get_platdata(&spi->dev)) {
r = acx565akm_probe_pdata(spi);
if (r)
return r;
} else if (spi->dev.of_node) {
r = acx565akm_probe_of(spi);
if (r)
return r;
} else {
dev_err(&spi->dev, "platform data missing!\n");
return -ENODEV;
}
if (gpio_is_valid(ddata->reset_gpio)) {
r = devm_gpio_request_one(&spi->dev, ddata->reset_gpio,
GPIOF_OUT_INIT_LOW, "lcd reset");
if (r)
goto err_gpio;
}
if (gpio_is_valid(ddata->reset_gpio))
gpio_set_value(ddata->reset_gpio, 1);
/*
* After reset we have to wait 5 msec before the first
* command can be sent.
*/
usleep_range(5000, 10000);
ddata->enabled = panel_enabled(ddata);
r = panel_detect(ddata);
if (!ddata->enabled && gpio_is_valid(ddata->reset_gpio))
gpio_set_value(ddata->reset_gpio, 0);
if (r) {
dev_err(&spi->dev, "%s panel detect error\n", __func__);
goto err_detect;
}
memset(&props, 0, sizeof(props));
props.fb_blank = FB_BLANK_UNBLANK;
props.power = FB_BLANK_UNBLANK;
props.type = BACKLIGHT_RAW;
bldev = backlight_device_register("acx565akm", &ddata->spi->dev,
ddata, &acx565akm_bl_ops, &props);
if (IS_ERR(bldev)) {
r = PTR_ERR(bldev);
goto err_reg_bl;
}
ddata->bl_dev = bldev;
if (ddata->has_cabc) {
r = sysfs_create_group(&bldev->dev.kobj, &bldev_attr_group);
if (r) {
dev_err(&bldev->dev,
"%s failed to create sysfs files\n", __func__);
goto err_sysfs;
}
ddata->cabc_mode = get_hw_cabc_mode(ddata);
}
max_brightness = 255;
if (ddata->has_bc)
brightness = acx565akm_get_actual_brightness(ddata);
else
brightness = 0;
bldev->props.max_brightness = max_brightness;
bldev->props.brightness = brightness;
acx565akm_bl_update_status(bldev);
ddata->videomode = acx565akm_panel_timings;
dssdev = &ddata->dssdev;
dssdev->dev = &spi->dev;
dssdev->driver = &acx565akm_ops;
dssdev->type = OMAP_DISPLAY_TYPE_SDI;
dssdev->owner = THIS_MODULE;
dssdev->panel.timings = ddata->videomode;
r = omapdss_register_display(dssdev);
if (r) {
dev_err(&spi->dev, "Failed to register panel\n");
goto err_reg;
}
return 0;
err_reg:
sysfs_remove_group(&bldev->dev.kobj, &bldev_attr_group);
err_sysfs:
backlight_device_unregister(bldev);
err_reg_bl:
err_detect:
err_gpio:
omap_dss_put_device(ddata->in);
return r;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomi Valkeinen | 590 | 100.00% | 1 | 100.00% |
| Total | 590 | 100.00% | 1 | 100.00% |
static int acx565akm_remove(struct spi_device *spi)
{
struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
struct omap_dss_device *dssdev = &ddata->dssdev;
struct omap_dss_device *in = ddata->in;
dev_dbg(&ddata->spi->dev, "%s\n", __func__);
sysfs_remove_group(&ddata->bl_dev->dev.kobj, &bldev_attr_group);
backlight_device_unregister(ddata->bl_dev);
omapdss_unregister_display(dssdev);
acx565akm_disable(dssdev);
acx565akm_disconnect(dssdev);
omap_dss_put_device(in);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomi Valkeinen | 102 | 100.00% | 1 | 100.00% |
| Total | 102 | 100.00% | 1 | 100.00% |
static const struct of_device_id acx565akm_of_match[] = {
{ .compatible = "omapdss,sony,acx565akm", },
{},
};
MODULE_DEVICE_TABLE(of, acx565akm_of_match);
static struct spi_driver acx565akm_driver = {
.driver = {
.name = "acx565akm",
.of_match_table = acx565akm_of_match,
.suppress_bind_attrs = true,
},
.probe = acx565akm_probe,
.remove = acx565akm_remove,
};
module_spi_driver(acx565akm_driver);
MODULE_AUTHOR("Nokia Corporation");
MODULE_DESCRIPTION("acx565akm LCD Driver");
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomi Valkeinen | 3972 | 99.97% | 1 | 50.00% |
| Peter Ujfalusi | 1 | 0.03% | 1 | 50.00% |
| Total | 3973 | 100.00% | 2 | 100.00% |
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