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-rw-r--r--drivers/video/omap2/displays/Kconfig9
-rw-r--r--drivers/video/omap2/displays/Makefile1
-rw-r--r--drivers/video/omap2/displays/panel-acx565akm.c819
-rw-r--r--drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c78
-rw-r--r--drivers/video/omap2/displays/panel-taal.c143
-rw-r--r--drivers/video/omap2/dss/Kconfig6
-rw-r--r--drivers/video/omap2/dss/Makefile3
-rw-r--r--drivers/video/omap2/dss/core.c85
-rw-r--r--drivers/video/omap2/dss/display.c9
-rw-r--r--drivers/video/omap2/dss/dss.c24
-rw-r--r--drivers/video/omap2/dss/dss.h50
-rw-r--r--drivers/video/omap2/dss/manager.c21
-rw-r--r--drivers/video/omap2/dss/sdi.c26
-rw-r--r--drivers/video/omap2/dss/venc.c15
-rw-r--r--drivers/video/omap2/omapfb/omapfb-ioctl.c5
-rw-r--r--drivers/video/omap2/omapfb/omapfb-sysfs.c25
16 files changed, 1219 insertions, 100 deletions
diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig
index dfb57ee50861..881c9f77c75a 100644
--- a/drivers/video/omap2/displays/Kconfig
+++ b/drivers/video/omap2/displays/Kconfig
@@ -10,6 +10,7 @@ config PANEL_GENERIC
config PANEL_SHARP_LS037V7DW01
tristate "Sharp LS037V7DW01 LCD Panel"
depends on OMAP2_DSS
+ select BACKLIGHT_CLASS_DEVICE
help
LCD Panel used in TI's SDP3430 and EVM boards
@@ -33,8 +34,14 @@ config PANEL_TOPPOLY_TDO35S
config PANEL_TPO_TD043MTEA1
tristate "TPO TD043MTEA1 LCD Panel"
- depends on OMAP2_DSS && I2C
+ depends on OMAP2_DSS && SPI
help
LCD Panel used in OMAP3 Pandora
+config PANEL_ACX565AKM
+ tristate "ACX565AKM Panel"
+ depends on OMAP2_DSS_SDI
+ select BACKLIGHT_CLASS_DEVICE
+ help
+ This is the LCD panel used on Nokia N900
endmenu
diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile
index e2bb32168dee..aa386095d7c4 100644
--- a/drivers/video/omap2/displays/Makefile
+++ b/drivers/video/omap2/displays/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_PANEL_SHARP_LQ043T1DG01) += panel-sharp-lq043t1dg01.o
obj-$(CONFIG_PANEL_TAAL) += panel-taal.o
obj-$(CONFIG_PANEL_TOPPOLY_TDO35S) += panel-toppoly-tdo35s.o
obj-$(CONFIG_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
+obj-$(CONFIG_PANEL_ACX565AKM) += panel-acx565akm.o
diff --git a/drivers/video/omap2/displays/panel-acx565akm.c b/drivers/video/omap2/displays/panel-acx565akm.c
new file mode 100644
index 000000000000..1f8eb70e2937
--- /dev/null
+++ b/drivers/video/omap2/displays/panel-acx565akm.c
@@ -0,0 +1,819 @@
+/*
+ * Support for ACX565AKM LCD Panel used on Nokia N900
+ *
+ * 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 <plat/display.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 acx565akm_device {
+ 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 omap_dss_device *dssdev;
+ struct backlight_device *bl_dev;
+};
+
+static struct acx565akm_device acx_dev;
+static int acx565akm_bl_update_status(struct backlight_device *dev);
+
+/*--------------------MIPID interface-----------------------------*/
+
+static void acx565akm_transfer(struct acx565akm_device *md, 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(md->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(md->spi, &m);
+ if (r < 0)
+ dev_dbg(&md->spi->dev, "spi_sync %d\n", r);
+}
+
+static inline void acx565akm_cmd(struct acx565akm_device *md, int cmd)
+{
+ acx565akm_transfer(md, cmd, NULL, 0, NULL, 0);
+}
+
+static inline void acx565akm_write(struct acx565akm_device *md,
+ int reg, const u8 *buf, int len)
+{
+ acx565akm_transfer(md, reg, buf, len, NULL, 0);
+}
+
+static inline void acx565akm_read(struct acx565akm_device *md,
+ int reg, u8 *buf, int len)
+{
+ acx565akm_transfer(md, reg, NULL, 0, buf, len);
+}
+
+static void hw_guard_start(struct acx565akm_device *md, int guard_msec)
+{
+ md->hw_guard_wait = msecs_to_jiffies(guard_msec);
+ md->hw_guard_end = jiffies + md->hw_guard_wait;
+}
+
+static void hw_guard_wait(struct acx565akm_device *md)
+{
+ unsigned long wait = md->hw_guard_end - jiffies;
+
+ if ((long)wait > 0 && wait <= md->hw_guard_wait) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(wait);
+ }
+}
+
+/*----------------------MIPID wrappers----------------------------*/
+
+static void set_sleep_mode(struct acx565akm_device *md, 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(md);
+ acx565akm_cmd(md, cmd);
+ hw_guard_start(md, 120);
+}
+
+static void set_display_state(struct acx565akm_device *md, int enabled)
+{
+ int cmd = enabled ? MIPID_CMD_DISP_ON : MIPID_CMD_DISP_OFF;
+
+ acx565akm_cmd(md, cmd);
+}
+
+static int panel_enabled(struct acx565akm_device *md)
+{
+ u32 disp_status;
+ int enabled;
+
+ acx565akm_read(md, 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(&md->spi->dev,
+ "LCD panel %senabled by bootloader (status 0x%04x)\n",
+ enabled ? "" : "not ", disp_status);
+ return enabled;
+}
+
+static int panel_detect(struct acx565akm_device *md)
+{
+ acx565akm_read(md, MIPID_CMD_READ_DISP_ID, md->display_id, 3);
+ dev_dbg(&md->spi->dev, "MIPI display ID: %02x%02x%02x\n",
+ md->display_id[0], md->display_id[1], md->display_id[2]);
+
+ switch (md->display_id[0]) {
+ case 0x10:
+ md->model = MIPID_VER_ACX565AKM;
+ md->name = "acx565akm";
+ md->has_bc = 1;
+ md->has_cabc = 1;
+ break;
+ case 0x29:
+ md->model = MIPID_VER_L4F00311;
+ md->name = "l4f00311";
+ break;
+ case 0x45:
+ md->model = MIPID_VER_LPH8923;
+ md->name = "lph8923";
+ break;
+ case 0x83:
+ md->model = MIPID_VER_LS041Y3;
+ md->name = "ls041y3";
+ break;
+ default:
+ md->name = "unknown";
+ dev_err(&md->spi->dev, "invalid display ID\n");
+ return -ENODEV;
+ }
+
+ md->revision = md->display_id[1];
+
+ dev_info(&md->spi->dev, "omapfb: %s rev %02x LCD detected\n",
+ md->name, md->revision);
+
+ return 0;
+}
+
+/*----------------------Backlight Control-------------------------*/
+
+static void enable_backlight_ctrl(struct acx565akm_device *md, int enable)
+{
+ u16 ctrl;
+
+ acx565akm_read(md, 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(md, MIPID_CMD_WRITE_CTRL_DISP, (u8 *)&ctrl, 2);
+}
+
+static void set_cabc_mode(struct acx565akm_device *md, unsigned mode)
+{
+ u16 cabc_ctrl;
+
+ md->cabc_mode = mode;
+ if (!md->enabled)
+ return;
+ cabc_ctrl = 0;
+ acx565akm_read(md, MIPID_CMD_READ_CABC, (u8 *)&cabc_ctrl, 1);
+ cabc_ctrl &= ~3;
+ cabc_ctrl |= (1 << 8) | (mode & 3);
+ acx565akm_write(md, MIPID_CMD_WRITE_CABC, (u8 *)&cabc_ctrl, 2);
+}
+
+static unsigned get_cabc_mode(struct acx565akm_device *md)
+{
+ return md->cabc_mode;
+}
+
+static unsigned get_hw_cabc_mode(struct acx565akm_device *md)
+{
+ u8 cabc_ctrl;
+
+ acx565akm_read(md, MIPID_CMD_READ_CABC, &cabc_ctrl, 1);
+ return cabc_ctrl & 3;
+}
+
+static void acx565akm_set_brightness(struct acx565akm_device *md, int level)
+{
+ int bv;
+
+ bv = level | (1 << 8);
+ acx565akm_write(md, MIPID_CMD_WRITE_DISP_BRIGHTNESS, (u8 *)&bv, 2);
+
+ if (level)
+ enable_backlight_ctrl(md, 1);
+ else
+ enable_backlight_ctrl(md, 0);
+}
+
+static int acx565akm_get_actual_brightness(struct acx565akm_device *md)
+{
+ u8 bv;
+
+ acx565akm_read(md, MIPID_CMD_READ_DISP_BRIGHTNESS, &bv, 1);
+
+ return bv;
+}
+
+
+static int acx565akm_bl_update_status(struct backlight_device *dev)
+{
+ struct acx565akm_device *md = dev_get_drvdata(&dev->dev);
+ int r;
+ int level;
+
+ dev_dbg(&md->spi->dev, "%s\n", __func__);
+
+ mutex_lock(&md->mutex);
+
+ if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
+ dev->props.power == FB_BLANK_UNBLANK)
+ level = dev->props.brightness;
+ else
+ level = 0;
+
+ r = 0;
+ if (md->has_bc)
+ acx565akm_set_brightness(md, level);
+ else if (md->dssdev->set_backlight)
+ r = md->dssdev->set_backlight(md->dssdev, level);
+ else
+ r = -ENODEV;
+
+ mutex_unlock(&md->mutex);
+
+ return r;
+}
+
+static int acx565akm_bl_get_intensity(struct backlight_device *dev)
+{
+ struct acx565akm_device *md = dev_get_drvdata(&dev->dev);
+
+ dev_dbg(&dev->dev, "%s\n", __func__);
+
+ if (!md->has_bc && md->dssdev->set_backlight == NULL)
+ return -ENODEV;
+
+ if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
+ dev->props.power == FB_BLANK_UNBLANK) {
+ if (md->has_bc)
+ return acx565akm_get_actual_brightness(md);
+ else
+ return dev->props.brightness;
+ }
+
+ return 0;
+}
+
+static const struct backlight_ops acx565akm_bl_ops = {
+ .get_brightness = acx565akm_bl_get_intensity,
+ .update_status = acx565akm_bl_update_status,
+};
+
+/*--------------------Auto Brightness control via Sysfs---------------------*/
+
+static const char *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 acx565akm_device *md = dev_get_drvdata(dev);
+ const char *mode_str;
+ int mode;
+ int len;
+
+ if (!md->has_cabc)
+ mode = 0;
+ else
+ mode = get_cabc_mode(md);
+ 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;
+}
+
+static ssize_t store_cabc_mode(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acx565akm_device *md = 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 (!md->has_cabc && i != 0)
+ return -EINVAL;
+
+ mutex_lock(&md->mutex);
+ set_cabc_mode(md, i);
+ mutex_unlock(&md->mutex);
+
+ return count;
+}
+
+static ssize_t show_cabc_available_modes(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acx565akm_device *md = dev_get_drvdata(dev);
+ int len;
+ int i;
+
+ if (!md->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;
+}
+
+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,
+};
+
+
+/*---------------------------ACX Panel----------------------------*/
+
+static int acx_get_recommended_bpp(struct omap_dss_device *dssdev)
+{
+ return 16;
+}
+
+static struct omap_video_timings acx_panel_timings = {
+ .x_res = 800,
+ .y_res = 480,
+ .pixel_clock = 24000,
+ .hfp = 28,
+ .hsw = 4,
+ .hbp = 24,
+ .vfp = 3,
+ .vsw = 3,
+ .vbp = 4,
+};
+
+static int acx_panel_probe(struct omap_dss_device *dssdev)
+{
+ int r;
+ struct acx565akm_device *md = &acx_dev;
+ struct backlight_device *bldev;
+ int max_brightness, brightness;
+ struct backlight_properties props;
+
+ dev_dbg(&dssdev->dev, "%s\n", __func__);
+ dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+ OMAP_DSS_LCD_IHS;
+ /* FIXME AC bias ? */
+ dssdev->panel.timings = acx_panel_timings;
+
+ if (dssdev->platform_enable)
+ dssdev->platform_enable(dssdev);
+ /*
+ * After reset we have to wait 5 msec before the first
+ * command can be sent.
+ */
+ msleep(5);
+
+ md->enabled = panel_enabled(md);
+
+ r = panel_detect(md);
+ if (r) {
+ dev_err(&dssdev->dev, "%s panel detect error\n", __func__);
+ if (!md->enabled && dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+ return r;
+ }
+
+ mutex_lock(&acx_dev.mutex);
+ acx_dev.dssdev = dssdev;
+ mutex_unlock(&acx_dev.mutex);
+
+ if (!md->enabled) {
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+ }
+
+ /*------- Backlight control --------*/
+
+ props.fb_blank = FB_BLANK_UNBLANK;
+ props.power = FB_BLANK_UNBLANK;
+
+ bldev = backlight_device_register("acx565akm", &md->spi->dev,
+ md, &acx565akm_bl_ops, &props);
+ md->bl_dev = bldev;
+ if (md->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__);
+ backlight_device_unregister(bldev);
+ return r;
+ }
+ md->cabc_mode = get_hw_cabc_mode(md);
+ }
+
+ if (md->has_bc)
+ max_brightness = 255;
+ else
+ max_brightness = dssdev->max_backlight_level;
+
+ if (md->has_bc)
+ brightness = acx565akm_get_actual_brightness(md);
+ else if (dssdev->get_backlight)
+ brightness = dssdev->get_backlight(dssdev);
+ else
+ brightness = 0;
+
+ bldev->props.max_brightness = max_brightness;
+ bldev->props.brightness = brightness;
+
+ acx565akm_bl_update_status(bldev);
+ return 0;
+}
+
+static void acx_panel_remove(struct omap_dss_device *dssdev)
+{
+ struct acx565akm_device *md = &acx_dev;
+
+ dev_dbg(&dssdev->dev, "%s\n", __func__);
+ sysfs_remove_group(&md->bl_dev->dev.kobj, &bldev_attr_group);
+ backlight_device_unregister(md->bl_dev);
+ mutex_lock(&acx_dev.mutex);
+ acx_dev.dssdev = NULL;
+ mutex_unlock(&acx_dev.mutex);
+}
+
+static int acx_panel_power_on(struct omap_dss_device *dssdev)
+{
+ struct acx565akm_device *md = &acx_dev;
+ int r;
+
+ dev_dbg(&dssdev->dev, "%s\n", __func__);
+
+ mutex_lock(&md->mutex);
+
+ r = omapdss_sdi_display_enable(dssdev);
+ if (r) {
+ pr_err("%s sdi enable failed\n", __func__);
+ return r;
+ }
+
+ /*FIXME tweak me */
+ msleep(50);
+
+ if (dssdev->platform_enable) {
+ r = dssdev->platform_enable(dssdev);
+ if (r)
+ goto fail;
+ }
+
+ if (md->enabled) {
+ dev_dbg(&md->spi->dev, "panel already enabled\n");
+ mutex_unlock(&md->mutex);
+ 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(md, 0);
+ md->enabled = 1;
+
+ /* 5msec between sleep out and the next command. (8.2.16) */
+ msleep(5);
+ set_display_state(md, 1);
+ set_cabc_mode(md, md->cabc_mode);
+
+ mutex_unlock(&md->mutex);
+
+ return acx565akm_bl_update_status(md->bl_dev);
+fail:
+ omapdss_sdi_display_disable(dssdev);
+ return r;
+}
+
+static void acx_panel_power_off(struct omap_dss_device *dssdev)
+{
+ struct acx565akm_device *md = &acx_dev;
+
+ dev_dbg(&dssdev->dev, "%s\n", __func__);
+
+ mutex_lock(&md->mutex);
+
+ if (!md->enabled) {
+ mutex_unlock(&md->mutex);
+ return;
+ }
+ set_display_state(md, 0);
+ set_sleep_mode(md, 1);
+ md->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 (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ /* FIXME need to tweak this delay */
+ msleep(100);
+
+ omapdss_sdi_display_disable(dssdev);
+
+ mutex_unlock(&md->mutex);
+}
+
+static int acx_panel_enable(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ dev_dbg(&dssdev->dev, "%s\n", __func__);
+ r = acx_panel_power_on(dssdev);
+
+ if (r)
+ return r;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+ return 0;
+}
+
+static void acx_panel_disable(struct omap_dss_device *dssdev)
+{
+ dev_dbg(&dssdev->dev, "%s\n", __func__);
+ acx_panel_power_off(dssdev);
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+}
+
+static int acx_panel_suspend(struct omap_dss_device *dssdev)
+{
+ dev_dbg(&dssdev->dev, "%s\n", __func__);
+ acx_panel_power_off(dssdev);
+ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+ return 0;
+}
+
+static int acx_panel_resume(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ dev_dbg(&dssdev->dev, "%s\n", __func__);
+ r = acx_panel_power_on(dssdev);
+ if (r)
+ return r;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+ return 0;
+}
+
+static void acx_panel_set_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ int r;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+ omapdss_sdi_display_disable(dssdev);
+
+ dssdev->panel.timings = *timings;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
+ r = omapdss_sdi_display_enable(dssdev);
+ if (r)
+ dev_err(&dssdev->dev, "%s enable failed\n", __func__);
+ }
+}
+
+static void acx_panel_get_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ *timings = dssdev->panel.timings;
+}
+
+static int acx_panel_check_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ return 0;
+}
+
+
+static struct omap_dss_driver acx_panel_driver = {
+ .probe = acx_panel_probe,
+ .remove = acx_panel_remove,
+
+ .enable = acx_panel_enable,
+ .disable = acx_panel_disable,
+ .suspend = acx_panel_suspend,
+ .resume = acx_panel_resume,
+
+ .set_timings = acx_panel_set_timings,
+ .get_timings = acx_panel_get_timings,
+ .check_timings = acx_panel_check_timings,
+
+ .get_recommended_bpp = acx_get_recommended_bpp,
+
+ .driver = {
+ .name = "panel-acx565akm",
+ .owner = THIS_MODULE,
+ },
+};
+
+/*--------------------SPI probe-------------------------*/
+
+static int acx565akm_spi_probe(struct spi_device *spi)
+{
+ struct acx565akm_device *md = &acx_dev;
+
+ dev_dbg(&spi->dev, "%s\n", __func__);
+
+ spi->mode = SPI_MODE_3;
+ md->spi = spi;
+ mutex_init(&md->mutex);
+ dev_set_drvdata(&spi->dev, md);
+
+ omap_dss_register_driver(&acx_panel_driver);
+
+ return 0;
+}
+
+static int acx565akm_spi_remove(struct spi_device *spi)
+{
+ struct acx565akm_device *md = dev_get_drvdata(&spi->dev);
+
+ dev_dbg(&md->spi->dev, "%s\n", __func__);
+ omap_dss_unregister_driver(&acx_panel_driver);
+
+ return 0;
+}
+
+static struct spi_driver acx565akm_spi_driver = {
+ .driver = {
+ .name = "acx565akm",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = acx565akm_spi_probe,
+ .remove = __devexit_p(acx565akm_spi_remove),
+};
+
+static int __init acx565akm_init(void)
+{
+ return spi_register_driver(&acx565akm_spi_driver);
+}
+
+static void __exit acx565akm_exit(void)
+{
+ spi_unregister_driver(&acx565akm_spi_driver);
+}
+
+module_init(acx565akm_init);
+module_exit(acx565akm_exit);
+
+MODULE_AUTHOR("Nokia Corporation");
+MODULE_DESCRIPTION("acx565akm LCD Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
index 8d51a5e6341c..7d9eb2b1f5af 100644
--- a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
@@ -20,10 +20,17 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/device.h>
+#include <linux/backlight.h>
+#include <linux/fb.h>
#include <linux/err.h>
+#include <linux/slab.h>
#include <plat/display.h>
+struct sharp_data {
+ struct backlight_device *bl;
+};
+
static struct omap_video_timings sharp_ls_timings = {
.x_res = 480,
.y_res = 640,
@@ -39,18 +46,89 @@ static struct omap_video_timings sharp_ls_timings = {
.vbp = 1,
};
+static int sharp_ls_bl_update_status(struct backlight_device *bl)
+{
+ struct omap_dss_device *dssdev = dev_get_drvdata(&bl->dev);
+ int level;
+
+ if (!dssdev->set_backlight)
+ return -EINVAL;
+
+ if (bl->props.fb_blank == FB_BLANK_UNBLANK &&
+ bl->props.power == FB_BLANK_UNBLANK)
+ level = bl->props.brightness;
+ else
+ level = 0;
+
+ return dssdev->set_backlight(dssdev, level);
+}
+
+static int sharp_ls_bl_get_brightness(struct backlight_device *bl)
+{
+ if (bl->props.fb_blank == FB_BLANK_UNBLANK &&
+ bl->props.power == FB_BLANK_UNBLANK)
+ return bl->props.brightness;
+
+ return 0;
+}
+
+static const struct backlight_ops sharp_ls_bl_ops = {
+ .get_brightness = sharp_ls_bl_get_brightness,
+ .update_status = sharp_ls_bl_update_status,
+};
+
+
+
static int sharp_ls_panel_probe(struct omap_dss_device *dssdev)
{
+ struct backlight_properties props;
+ struct backlight_device *bl;
+ struct sharp_data *sd;
+ int r;
+
dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
OMAP_DSS_LCD_IHS;
dssdev->panel.acb = 0x28;
dssdev->panel.timings = sharp_ls_timings;
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+ if (!sd)
+ return -ENOMEM;
+
+ dev_set_drvdata(&dssdev->dev, sd);
+
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = dssdev->max_backlight_level;
+
+ bl = backlight_device_register("sharp-ls", &dssdev->dev, dssdev,
+ &sharp_ls_bl_ops, &props);
+ if (IS_ERR(bl)) {
+ r = PTR_ERR(bl);
+ kfree(sd);
+ return r;
+ }
+ sd->bl = bl;
+
+ bl->props.fb_blank = FB_BLANK_UNBLANK;
+ bl->props.power = FB_BLANK_UNBLANK;
+ bl->props.brightness = dssdev->max_backlight_level;
+ r = sharp_ls_bl_update_status(bl);
+ if (r < 0)
+ dev_err(&dssdev->dev, "failed to set lcd brightness\n");
+
return 0;
}
static void sharp_ls_panel_remove(struct omap_dss_device *dssdev)
{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+ struct backlight_device *bl = sd->bl;
+
+ bl->props.power = FB_BLANK_POWERDOWN;
+ sharp_ls_bl_update_status(bl);
+ backlight_device_unregister(bl);
+
+ kfree(sd);
}
static int sharp_ls_power_on(struct omap_dss_device *dssdev)
diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index 4f3988a41082..aaf5d308a046 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -31,6 +31,7 @@
#include <linux/completion.h>
#include <linux/workqueue.h>
#include <linux/slab.h>
+#include <linux/mutex.h>
#include <plat/display.h>
@@ -67,6 +68,8 @@
static int _taal_enable_te(struct omap_dss_device *dssdev, bool enable);
struct taal_data {
+ struct mutex lock;
+
struct backlight_device *bldev;
unsigned long hw_guard_end; /* next value of jiffies when we can
@@ -510,6 +513,8 @@ static int taal_probe(struct omap_dss_device *dssdev)
}
td->dssdev = dssdev;
+ mutex_init(&td->lock);
+
td->esd_wq = create_singlethread_workqueue("taal_esd");
if (td->esd_wq == NULL) {
dev_err(&dssdev->dev, "can't create ESD workqueue\n");
@@ -697,10 +702,9 @@ static int taal_power_on(struct omap_dss_device *dssdev)
return 0;
err:
- dsi_bus_unlock();
-
omapdss_dsi_display_disable(dssdev);
err0:
+ dsi_bus_unlock();
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
@@ -733,54 +737,96 @@ static void taal_power_off(struct omap_dss_device *dssdev)
static int taal_enable(struct omap_dss_device *dssdev)
{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
int r;
+
dev_dbg(&dssdev->dev, "enable\n");
- if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)
- return -EINVAL;
+ mutex_lock(&td->lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
+ r = -EINVAL;
+ goto err;
+ }
r = taal_power_on(dssdev);
if (r)
- return r;
+ goto err;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+ mutex_unlock(&td->lock);
+
+ return 0;
+err:
+ dev_dbg(&dssdev->dev, "enable failed\n");
+ mutex_unlock(&td->lock);
return r;
}
static void taal_disable(struct omap_dss_device *dssdev)
{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+
dev_dbg(&dssdev->dev, "disable\n");
+ mutex_lock(&td->lock);
+
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
taal_power_off(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+
+ mutex_unlock(&td->lock);
}
static int taal_suspend(struct omap_dss_device *dssdev)
{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ int r;
+
dev_dbg(&dssdev->dev, "suspend\n");
- if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
- return -EINVAL;
+ mutex_lock(&td->lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
+ r = -EINVAL;
+ goto err;
+ }
taal_power_off(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+ mutex_unlock(&td->lock);
+
return 0;
+err:
+ mutex_unlock(&td->lock);
+ return r;
}
static int taal_resume(struct omap_dss_device *dssdev)
{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
int r;
+
dev_dbg(&dssdev->dev, "resume\n");
- if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
- return -EINVAL;
+ mutex_lock(&td->lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
+ r = -EINVAL;
+ goto err;
+ }
r = taal_power_on(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ mutex_unlock(&td->lock);
+
+ return r;
+err:
+ mutex_unlock(&td->lock);
return r;
}
@@ -799,6 +845,7 @@ static int taal_update(struct omap_dss_device *dssdev,
dev_dbg(&dssdev->dev, "update %d, %d, %d x %d\n", x, y, w, h);
+ mutex_lock(&td->lock);
dsi_bus_lock();
if (!td->enabled) {
@@ -820,18 +867,24 @@ static int taal_update(struct omap_dss_device *dssdev,
goto err;
/* note: no bus_unlock here. unlock is in framedone_cb */
+ mutex_unlock(&td->lock);
return 0;
err:
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
return r;
}
static int taal_sync(struct omap_dss_device *dssdev)
{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+
dev_dbg(&dssdev->dev, "sync\n");
+ mutex_lock(&td->lock);
dsi_bus_lock();
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
dev_dbg(&dssdev->dev, "sync done\n");
@@ -861,13 +914,16 @@ static int _taal_enable_te(struct omap_dss_device *dssdev, bool enable)
static int taal_enable_te(struct omap_dss_device *dssdev, bool enable)
{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
int r;
+ mutex_lock(&td->lock);
dsi_bus_lock();
r = _taal_enable_te(dssdev, enable);
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
return r;
}
@@ -875,7 +931,13 @@ static int taal_enable_te(struct omap_dss_device *dssdev, bool enable)
static int taal_get_te(struct omap_dss_device *dssdev)
{
struct taal_data *td = dev_get_drvdata(&dssdev->dev);
- return td->te_enabled;
+ int r;
+
+ mutex_lock(&td->lock);
+ r = td->te_enabled;
+ mutex_unlock(&td->lock);
+
+ return r;
}
static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate)
@@ -885,6 +947,7 @@ static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate)
dev_dbg(&dssdev->dev, "rotate %d\n", rotate);
+ mutex_lock(&td->lock);
dsi_bus_lock();
if (td->enabled) {
@@ -896,16 +959,24 @@ static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate)
td->rotate = rotate;
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
return 0;
err:
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
return r;
}
static u8 taal_get_rotate(struct omap_dss_device *dssdev)
{
struct taal_data *td = dev_get_drvdata(&dssdev->dev);
- return td->rotate;
+ int r;
+
+ mutex_lock(&td->lock);
+ r = td->rotate;
+ mutex_unlock(&td->lock);
+
+ return r;
}
static int taal_mirror(struct omap_dss_device *dssdev, bool enable)
@@ -915,6 +986,7 @@ static int taal_mirror(struct omap_dss_device *dssdev, bool enable)
dev_dbg(&dssdev->dev, "mirror %d\n", enable);
+ mutex_lock(&td->lock);
dsi_bus_lock();
if (td->enabled) {
r = taal_set_addr_mode(td->rotate, enable);
@@ -925,23 +997,33 @@ static int taal_mirror(struct omap_dss_device *dssdev, bool enable)
td->mirror = enable;
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
return 0;
err:
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
return r;
}
static bool taal_get_mirror(struct omap_dss_device *dssdev)
{
struct taal_data *td = dev_get_drvdata(&dssdev->dev);
- return td->mirror;
+ int r;
+
+ mutex_lock(&td->lock);
+ r = td->mirror;
+ mutex_unlock(&td->lock);
+
+ return r;
}
static int taal_run_test(struct omap_dss_device *dssdev, int test_num)
{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
u8 id1, id2, id3;
int r;
+ mutex_lock(&td->lock);
dsi_bus_lock();
r = taal_dcs_read_1(DCS_GET_ID1, &id1);
@@ -955,9 +1037,11 @@ static int taal_run_test(struct omap_dss_device *dssdev, int test_num)
goto err;
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
return 0;
err:
dsi_bus_unlock();
+ mutex_unlock(&td->lock);
return r;
}
@@ -971,12 +1055,16 @@ static int taal_memory_read(struct omap_dss_device *dssdev,
unsigned buf_used = 0;
struct taal_data *td = dev_get_drvdata(&dssdev->dev);
- if (!td->enabled)
- return -ENODEV;
-
if (size < w * h * 3)
return -ENOMEM;
+ mutex_lock(&td->lock);
+
+ if (!td->enabled) {
+ r = -ENODEV;
+ goto err1;
+ }
+
size = min(w * h * 3,
dssdev->panel.timings.x_res *
dssdev->panel.timings.y_res * 3);
@@ -995,7 +1083,7 @@ static int taal_memory_read(struct omap_dss_device *dssdev,
r = dsi_vc_set_max_rx_packet_size(TCH, plen);
if (r)
- goto err0;
+ goto err2;
while (buf_used < size) {
u8 dcs_cmd = first ? 0x2e : 0x3e;
@@ -1006,7 +1094,7 @@ static int taal_memory_read(struct omap_dss_device *dssdev,
if (r < 0) {
dev_err(&dssdev->dev, "read error\n");
- goto err;
+ goto err3;
}
buf_used += r;
@@ -1020,16 +1108,18 @@ static int taal_memory_read(struct omap_dss_device *dssdev,
dev_err(&dssdev->dev, "signal pending, "
"aborting memory read\n");
r = -ERESTARTSYS;
- goto err;
+ goto err3;
}
}
r = buf_used;
-err:
+err3:
dsi_vc_set_max_rx_packet_size(TCH, 1);
-err0:
+err2:
dsi_bus_unlock();
+err1:
+ mutex_unlock(&td->lock);
return r;
}
@@ -1041,8 +1131,12 @@ static void taal_esd_work(struct work_struct *work)
u8 state1, state2;
int r;
- if (!td->enabled)
+ mutex_lock(&td->lock);
+
+ if (!td->enabled) {
+ mutex_unlock(&td->lock);
return;
+ }
dsi_bus_lock();
@@ -1084,16 +1178,19 @@ static void taal_esd_work(struct work_struct *work)
queue_delayed_work(td->esd_wq, &td->esd_work, TAAL_ESD_CHECK_PERIOD);
+ mutex_unlock(&td->lock);
return;
err:
dev_err(&dssdev->dev, "performing LCD reset\n");
- taal_disable(dssdev);
- taal_enable(dssdev);
+ taal_power_off(dssdev);
+ taal_power_on(dssdev);
dsi_bus_unlock();
queue_delayed_work(td->esd_wq, &td->esd_work, TAAL_ESD_CHECK_PERIOD);
+
+ mutex_unlock(&td->lock);
}
static int taal_set_update_mode(struct omap_dss_device *dssdev,
diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig
index 87afb81b2c44..43b64403eaa4 100644
--- a/drivers/video/omap2/dss/Kconfig
+++ b/drivers/video/omap2/dss/Kconfig
@@ -36,6 +36,12 @@ config OMAP2_DSS_COLLECT_IRQ_STATS
<debugfs>/omapdss/dispc_irq for DISPC interrupts, and
<debugfs>/omapdss/dsi_irq for DSI interrupts.
+config OMAP2_DSS_DPI
+ bool "DPI support"
+ default y
+ help
+ DPI Interface. This is the Parallel Display Interface.
+
config OMAP2_DSS_RFBI
bool "RFBI support"
default n
diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 980c72c2db98..d71b5d9d71b1 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -1,5 +1,6 @@
obj-$(CONFIG_OMAP2_DSS) += omapdss.o
-omapdss-y := core.o dss.o dispc.o dpi.o display.o manager.o overlay.o
+omapdss-y := core.o dss.o dispc.o display.o manager.o overlay.o
+omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o
omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 7ebe50b335ed..b3a498f22d36 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -482,6 +482,14 @@ static void dss_uninitialize_debugfs(void)
if (dss_debugfs_dir)
debugfs_remove_recursive(dss_debugfs_dir);
}
+#else /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */
+static inline int dss_initialize_debugfs(void)
+{
+ return 0;
+}
+static inline void dss_uninitialize_debugfs(void)
+{
+}
#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */
/* PLATFORM DEVICE */
@@ -499,7 +507,7 @@ static int omap_dss_probe(struct platform_device *pdev)
r = dss_get_clocks();
if (r)
- goto fail0;
+ goto err_clocks;
dss_clk_enable_all_no_ctx();
@@ -515,64 +523,64 @@ static int omap_dss_probe(struct platform_device *pdev)
r = dss_init(skip_init);
if (r) {
DSSERR("Failed to initialize DSS\n");
- goto fail0;
+ goto err_dss;
}
-#ifdef CONFIG_OMAP2_DSS_RFBI
r = rfbi_init();
if (r) {
DSSERR("Failed to initialize rfbi\n");
- goto fail0;
+ goto err_rfbi;
}
-#endif
r = dpi_init(pdev);
if (r) {
DSSERR("Failed to initialize dpi\n");
- goto fail0;
+ goto err_dpi;
}
r = dispc_init();
if (r) {
DSSERR("Failed to initialize dispc\n");
- goto fail0;
+ goto err_dispc;
}
-#ifdef CONFIG_OMAP2_DSS_VENC
+
r = venc_init(pdev);
if (r) {
DSSERR("Failed to initialize venc\n");
- goto fail0;
+ goto err_venc;
}
-#endif
+
if (cpu_is_omap34xx()) {
-#ifdef CONFIG_OMAP2_DSS_SDI
r = sdi_init(skip_init);
if (r) {
DSSERR("Failed to initialize SDI\n");
- goto fail0;
+ goto err_sdi;
}
-#endif
-#ifdef CONFIG_OMAP2_DSS_DSI
+
r = dsi_init(pdev);
if (r) {
DSSERR("Failed to initialize DSI\n");
- goto fail0;
+ goto err_dsi;
}
-#endif
}
-#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
r = dss_initialize_debugfs();
if (r)
- goto fail0;
-#endif
+ goto err_debugfs;
for (i = 0; i < pdata->num_devices; ++i) {
struct omap_dss_device *dssdev = pdata->devices[i];
r = omap_dss_register_device(dssdev);
- if (r)
- DSSERR("device reg failed %d\n", i);
+ if (r) {
+ DSSERR("device %d %s register failed %d\n", i,
+ dssdev->name ?: "unnamed", r);
+
+ while (--i >= 0)
+ omap_dss_unregister_device(pdata->devices[i]);
+
+ goto err_register;
+ }
if (def_disp_name && strcmp(def_disp_name, dssdev->name) == 0)
pdata->default_device = dssdev;
@@ -582,8 +590,29 @@ static int omap_dss_probe(struct platform_device *pdev)
return 0;
- /* XXX fail correctly */
-fail0:
+err_register:
+ dss_uninitialize_debugfs();
+err_debugfs:
+ if (cpu_is_omap34xx())
+ dsi_exit();
+err_dsi:
+ if (cpu_is_omap34xx())
+ sdi_exit();
+err_sdi:
+ venc_exit();
+err_venc:
+ dispc_exit();
+err_dispc:
+ dpi_exit();
+err_dpi:
+ rfbi_exit();
+err_rfbi:
+ dss_exit();
+err_dss:
+ dss_clk_disable_all_no_ctx();
+ dss_put_clocks();
+err_clocks:
+
return r;
}
@@ -593,25 +622,15 @@ static int omap_dss_remove(struct platform_device *pdev)
int i;
int c;
-#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
dss_uninitialize_debugfs();
-#endif
-#ifdef CONFIG_OMAP2_DSS_VENC
venc_exit();
-#endif
dispc_exit();
dpi_exit();
-#ifdef CONFIG_OMAP2_DSS_RFBI
rfbi_exit();
-#endif
if (cpu_is_omap34xx()) {
-#ifdef CONFIG_OMAP2_DSS_DSI
dsi_exit();
-#endif
-#ifdef CONFIG_OMAP2_DSS_SDI
sdi_exit();
-#endif
}
dss_exit();
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 6a74ea116d29..ef8c8529dda2 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -392,7 +392,9 @@ void dss_init_device(struct platform_device *pdev,
int r;
switch (dssdev->type) {
+#ifdef CONFIG_OMAP2_DSS_DPI
case OMAP_DISPLAY_TYPE_DPI:
+#endif
#ifdef CONFIG_OMAP2_DSS_RFBI
case OMAP_DISPLAY_TYPE_DBI:
#endif
@@ -413,9 +415,11 @@ void dss_init_device(struct platform_device *pdev,
}
switch (dssdev->type) {
+#ifdef CONFIG_OMAP2_DSS_DPI
case OMAP_DISPLAY_TYPE_DPI:
r = dpi_init_display(dssdev);
break;
+#endif
#ifdef CONFIG_OMAP2_DSS_RFBI
case OMAP_DISPLAY_TYPE_DBI:
r = rfbi_init_display(dssdev);
@@ -541,7 +545,10 @@ int dss_resume_all_devices(void)
static int dss_disable_device(struct device *dev, void *data)
{
struct omap_dss_device *dssdev = to_dss_device(dev);
- dssdev->driver->disable(dssdev);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)
+ dssdev->driver->disable(dssdev);
+
return 0;
}
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 54344184dd73..24b18258654f 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -223,7 +223,13 @@ void dss_dump_clocks(struct seq_file *s)
seq_printf(s, "dpll4_ck %lu\n", dpll4_ck_rate);
- seq_printf(s, "dss1_alwon_fclk = %lu / %lu * 2 = %lu\n",
+ if (cpu_is_omap3630())
+ seq_printf(s, "dss1_alwon_fclk = %lu / %lu = %lu\n",
+ dpll4_ck_rate,
+ dpll4_ck_rate / dpll4_m4_ck_rate,
+ dss_clk_get_rate(DSS_CLK_FCK1));
+ else
+ seq_printf(s, "dss1_alwon_fclk = %lu / %lu * 2 = %lu\n",
dpll4_ck_rate,
dpll4_ck_rate / dpll4_m4_ck_rate,
dss_clk_get_rate(DSS_CLK_FCK1));
@@ -293,7 +299,8 @@ int dss_calc_clock_rates(struct dss_clock_info *cinfo)
{
unsigned long prate;
- if (cinfo->fck_div > 16 || cinfo->fck_div == 0)
+ if (cinfo->fck_div > (cpu_is_omap3630() ? 32 : 16) ||
+ cinfo->fck_div == 0)
return -EINVAL;
prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
@@ -329,7 +336,10 @@ int dss_get_clock_div(struct dss_clock_info *cinfo)
if (cpu_is_omap34xx()) {
unsigned long prate;
prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
- cinfo->fck_div = prate / (cinfo->fck / 2);
+ if (cpu_is_omap3630())
+ cinfo->fck_div = prate / (cinfo->fck);
+ else
+ cinfo->fck_div = prate / (cinfo->fck / 2);
} else {
cinfo->fck_div = 0;
}
@@ -402,10 +412,14 @@ retry:
goto found;
} else if (cpu_is_omap34xx()) {
- for (fck_div = 16; fck_div > 0; --fck_div) {
+ for (fck_div = (cpu_is_omap3630() ? 32 : 16);
+ fck_div > 0; --fck_div) {
struct dispc_clock_info cur_dispc;
- fck = prate / fck_div * 2;
+ if (cpu_is_omap3630())
+ fck = prate / fck_div;
+ else
+ fck = prate / fck_div * 2;
if (fck > DISPC_MAX_FCK)
continue;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 24326a5fd292..786f433fd571 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -242,11 +242,22 @@ int dss_calc_clock_div(bool is_tft, unsigned long req_pck,
struct dispc_clock_info *dispc_cinfo);
/* SDI */
+#ifdef CONFIG_OMAP2_DSS_SDI
int sdi_init(bool skip_init);
void sdi_exit(void);
int sdi_init_display(struct omap_dss_device *display);
+#else
+static inline int sdi_init(bool skip_init)
+{
+ return 0;
+}
+static inline void sdi_exit(void)
+{
+}
+#endif
/* DSI */
+#ifdef CONFIG_OMAP2_DSS_DSI
int dsi_init(struct platform_device *pdev);
void dsi_exit(void);
@@ -270,11 +281,30 @@ void dsi_pll_uninit(void);
void dsi_get_overlay_fifo_thresholds(enum omap_plane plane,
u32 fifo_size, enum omap_burst_size *burst_size,
u32 *fifo_low, u32 *fifo_high);
+#else
+static inline int dsi_init(struct platform_device *pdev)
+{
+ return 0;
+}
+static inline void dsi_exit(void)
+{
+}
+#endif
/* DPI */
+#ifdef CONFIG_OMAP2_DSS_DPI
int dpi_init(struct platform_device *pdev);
void dpi_exit(void);
int dpi_init_display(struct omap_dss_device *dssdev);
+#else
+static inline int dpi_init(struct platform_device *pdev)
+{
+ return 0;
+}
+static inline void dpi_exit(void)
+{
+}
+#endif
/* DISPC */
int dispc_init(void);
@@ -362,12 +392,23 @@ int dispc_get_clock_div(struct dispc_clock_info *cinfo);
/* VENC */
+#ifdef CONFIG_OMAP2_DSS_VENC
int venc_init(struct platform_device *pdev);
void venc_exit(void);
void venc_dump_regs(struct seq_file *s);
int venc_init_display(struct omap_dss_device *display);
+#else
+static inline int venc_init(struct platform_device *pdev)
+{
+ return 0;
+}
+static inline void venc_exit(void)
+{
+}
+#endif
/* RFBI */
+#ifdef CONFIG_OMAP2_DSS_RFBI
int rfbi_init(void);
void rfbi_exit(void);
void rfbi_dump_regs(struct seq_file *s);
@@ -379,6 +420,15 @@ void rfbi_transfer_area(u16 width, u16 height,
void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t);
unsigned long rfbi_get_max_tx_rate(void);
int rfbi_init_display(struct omap_dss_device *display);
+#else
+static inline int rfbi_init(void)
+{
+ return 0;
+}
+static inline void rfbi_exit(void)
+{
+}
+#endif
#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 0820986d4a68..9e1fbe531bf0 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -843,6 +843,7 @@ static void configure_manager(enum omap_channel channel)
c = &dss_cache.manager_cache[channel];
+ dispc_set_default_color(channel, c->default_color);
dispc_set_trans_key(channel, c->trans_key_type, c->trans_key);
dispc_enable_trans_key(channel, c->trans_enabled);
dispc_enable_alpha_blending(channel, c->alpha_enabled);
@@ -940,6 +941,22 @@ static int configure_dispc(void)
return r;
}
+/* Make the coordinates even. There are some strange problems with OMAP and
+ * partial DSI update when the update widths are odd. */
+static void make_even(u16 *x, u16 *w)
+{
+ u16 x1, x2;
+
+ x1 = *x;
+ x2 = *x + *w;
+
+ x1 &= ~1;
+ x2 = ALIGN(x2, 2);
+
+ *x = x1;
+ *w = x2 - x1;
+}
+
/* Configure dispc for partial update. Return possibly modified update
* area */
void dss_setup_partial_planes(struct omap_dss_device *dssdev,
@@ -968,6 +985,8 @@ void dss_setup_partial_planes(struct omap_dss_device *dssdev,
return;
}
+ make_even(&x, &w);
+
spin_lock_irqsave(&dss_cache.lock, flags);
/* We need to show the whole overlay if it is scaled. So look for
@@ -1029,6 +1048,8 @@ void dss_setup_partial_planes(struct omap_dss_device *dssdev,
w = x2 - x1;
h = y2 - y1;
+ make_even(&x, &w);
+
DSSDBG("changing upd area due to ovl(%d) scaling %d,%d %dx%d\n",
i, x, y, w, h);
}
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 12eb4042dd82..ee07a3cc22ef 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -23,13 +23,16 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
+#include <linux/regulator/consumer.h>
#include <plat/display.h>
+#include <plat/cpu.h>
#include "dss.h"
static struct {
bool skip_init;
bool update_enabled;
+ struct regulator *vdds_sdi_reg;
} sdi;
static void sdi_basic_init(void)
@@ -57,6 +60,10 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
goto err0;
}
+ r = regulator_enable(sdi.vdds_sdi_reg);
+ if (r)
+ goto err1;
+
/* In case of skip_init sdi_init has already enabled the clocks */
if (!sdi.skip_init)
dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
@@ -115,19 +122,12 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
dssdev->manager->enable(dssdev->manager);
- if (dssdev->driver->enable) {
- r = dssdev->driver->enable(dssdev);
- if (r)
- goto err3;
- }
-
sdi.skip_init = 0;
return 0;
-err3:
- dssdev->manager->disable(dssdev->manager);
err2:
dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ regulator_disable(sdi.vdds_sdi_reg);
err1:
omap_dss_stop_device(dssdev);
err0:
@@ -137,15 +137,14 @@ EXPORT_SYMBOL(omapdss_sdi_display_enable);
void omapdss_sdi_display_disable(struct omap_dss_device *dssdev)
{
- if (dssdev->driver->disable)
- dssdev->driver->disable(dssdev);
-
dssdev->manager->disable(dssdev->manager);
dss_sdi_disable();
dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ regulator_disable(sdi.vdds_sdi_reg);
+
omap_dss_stop_device(dssdev);
}
EXPORT_SYMBOL(omapdss_sdi_display_disable);
@@ -162,6 +161,11 @@ int sdi_init(bool skip_init)
/* we store this for first display enable, then clear it */
sdi.skip_init = skip_init;
+ sdi.vdds_sdi_reg = dss_get_vdds_sdi();
+ if (IS_ERR(sdi.vdds_sdi_reg)) {
+ DSSERR("can't get VDDS_SDI regulator\n");
+ return PTR_ERR(sdi.vdds_sdi_reg);
+ }
/*
* Enable clocks already here, otherwise there would be a toggle
* of them until sdi_display_enable is called.
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index f0ba5732d84a..eff35050e28a 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -479,12 +479,6 @@ static int venc_panel_enable(struct omap_dss_device *dssdev)
goto err1;
}
- if (dssdev->platform_enable) {
- r = dssdev->platform_enable(dssdev);
- if (r)
- goto err2;
- }
-
venc_power_on(dssdev);
venc.wss_data = 0;
@@ -494,13 +488,9 @@ static int venc_panel_enable(struct omap_dss_device *dssdev)
/* wait couple of vsyncs until enabling the LCD */
msleep(50);
- mutex_unlock(&venc.venc_lock);
-
- return r;
-err2:
- venc_power_off(dssdev);
err1:
mutex_unlock(&venc.venc_lock);
+
return r;
}
@@ -524,9 +514,6 @@ static void venc_panel_disable(struct omap_dss_device *dssdev)
/* wait at least 5 vsyncs after disabling the LCD */
msleep(100);
- if (dssdev->platform_disable)
- dssdev->platform_disable(dssdev);
-
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
end:
mutex_unlock(&venc.venc_lock);
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 1ffa760b8545..9c7361871d78 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -183,13 +183,14 @@ int omapfb_update_window(struct fb_info *fbi,
struct omapfb2_device *fbdev = ofbi->fbdev;
int r;
+ if (!lock_fb_info(fbi))
+ return -ENODEV;
omapfb_lock(fbdev);
- lock_fb_info(fbi);
r = omapfb_update_window_nolock(fbi, x, y, w, h);
- unlock_fb_info(fbi);
omapfb_unlock(fbdev);
+ unlock_fb_info(fbi);
return r;
}
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
index 62bb88f5c192..5179219128bd 100644
--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
@@ -57,7 +57,8 @@ static ssize_t store_rotate_type(struct device *dev,
if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB)
return -EINVAL;
- lock_fb_info(fbi);
+ if (!lock_fb_info(fbi))
+ return -ENODEV;
r = 0;
if (rot_type == ofbi->rotation_type)
@@ -105,7 +106,8 @@ static ssize_t store_mirror(struct device *dev,
if (mirror != 0 && mirror != 1)
return -EINVAL;
- lock_fb_info(fbi);
+ if (!lock_fb_info(fbi))
+ return -ENODEV;
ofbi->mirror = mirror;
@@ -137,8 +139,9 @@ static ssize_t show_overlays(struct device *dev,
ssize_t l = 0;
int t;
+ if (!lock_fb_info(fbi))
+ return -ENODEV;
omapfb_lock(fbdev);
- lock_fb_info(fbi);
for (t = 0; t < ofbi->num_overlays; t++) {
struct omap_overlay *ovl = ofbi->overlays[t];
@@ -154,8 +157,8 @@ static ssize_t show_overlays(struct device *dev,
l += snprintf(buf + l, PAGE_SIZE - l, "\n");
- unlock_fb_info(fbi);
omapfb_unlock(fbdev);
+ unlock_fb_info(fbi);
return l;
}
@@ -195,8 +198,9 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
if (buf[len - 1] == '\n')
len = len - 1;
+ if (!lock_fb_info(fbi))
+ return -ENODEV;
omapfb_lock(fbdev);
- lock_fb_info(fbi);
if (len > 0) {
char *p = (char *)buf;
@@ -303,8 +307,8 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
r = count;
out:
- unlock_fb_info(fbi);
omapfb_unlock(fbdev);
+ unlock_fb_info(fbi);
return r;
}
@@ -317,7 +321,8 @@ static ssize_t show_overlays_rotate(struct device *dev,
ssize_t l = 0;
int t;
- lock_fb_info(fbi);
+ if (!lock_fb_info(fbi))
+ return -ENODEV;
for (t = 0; t < ofbi->num_overlays; t++) {
l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
@@ -345,7 +350,8 @@ static ssize_t store_overlays_rotate(struct device *dev,
if (buf[len - 1] == '\n')
len = len - 1;
- lock_fb_info(fbi);
+ if (!lock_fb_info(fbi))
+ return -ENODEV;
if (len > 0) {
char *p = (char *)buf;
@@ -416,7 +422,8 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
size = PAGE_ALIGN(simple_strtoul(buf, NULL, 0));
- lock_fb_info(fbi);
+ if (!lock_fb_info(fbi))
+ return -ENODEV;
for (i = 0; i < ofbi->num_overlays; i++) {
if (ofbi->overlays[i]->info.enabled) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.