TPO_R03_EN_PRE_CHARGE | TPO_R03_SOFTWARE_CTL)
static const u16 tpo_td043_def_gamma[12] = {
- 106, 200, 289, 375, 460, 543, 625, 705, 785, 864, 942, 1020
+ 105, 315, 381, 431, 490, 537, 579, 686, 780, 837, 880, 1023
};
struct tpo_td043_device {
struct spi_device *spi;
struct regulator *vcc_reg;
+ struct regulator *vdd_reg;
+ int nreset_gpio;
u16 gamma[12];
u32 mode;
u32 hmirror:1;
u32 vmirror:1;
+ u32 powered_on:1;
+ u32 spi_suspended:1;
+ u32 power_on_resume:1;
};
static int tpo_td043_write(struct spi_device *spi, u8 addr, u8 data)
.pixel_clock = 36000,
+ /* note:
+ * hbp+hsw must be 215
+ * if vbp+vsw < 32, the panel tears at the bottom
+ * if vbp+vsw > 35, it wraps from the top */
.hsw = 1,
- .hfp = 68,
+ .hfp = 150,
.hbp = 214,
.vsw = 1,
- .vfp = 39,
+ .vfp = 0,
.vbp = 34,
};
-static int tpo_td043_power_on(struct omap_dss_device *dssdev)
+static int tpo_td043_power_on(struct tpo_td043_device *tpo_td043)
{
- struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev);
- int nreset_gpio = dssdev->reset_gpio;
- int r;
+ int nreset_gpio = tpo_td043->nreset_gpio;
- if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+ if (tpo_td043->powered_on)
return 0;
- r = omapdss_dpi_display_enable(dssdev);
- if (r)
- goto err0;
-
- if (dssdev->platform_enable) {
- r = dssdev->platform_enable(dssdev);
- if (r)
- goto err1;
- }
-
regulator_enable(tpo_td043->vcc_reg);
+ regulator_enable(tpo_td043->vdd_reg);
- /* wait for power up */
+ /* wait for regulator to stabilize */
msleep(160);
if (gpio_is_valid(nreset_gpio))
tpo_td043->vmirror);
tpo_td043_write_gamma(tpo_td043->spi, tpo_td043->gamma);
+ tpo_td043->powered_on = 1;
return 0;
-err1:
- omapdss_dpi_display_disable(dssdev);
-err0:
- return r;
}
-static void tpo_td043_power_off(struct omap_dss_device *dssdev)
+static void tpo_td043_power_off(struct tpo_td043_device *tpo_td043)
{
- struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev);
- int nreset_gpio = dssdev->reset_gpio;
+ int nreset_gpio = tpo_td043->nreset_gpio;
- if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ if (!tpo_td043->powered_on)
return;
tpo_td043_write(tpo_td043->spi, 3,
tpo_td043_write(tpo_td043->spi, 3, TPO_R03_VAL_STANDBY);
+ regulator_disable(tpo_td043->vdd_reg);
regulator_disable(tpo_td043->vcc_reg);
+ tpo_td043->powered_on = 0;
+}
+
+static int tpo_td043_enable_dss(struct omap_dss_device *dssdev)
+{
+ struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev);
+ int r;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+ return 0;
+
+ r = omapdss_dpi_display_enable(dssdev);
+ if (r)
+ goto err0;
+
+ if (dssdev->platform_enable) {
+ r = dssdev->platform_enable(dssdev);
+ if (r)
+ goto err1;
+ }
+
+ /*
+ * If we are resuming from system suspend, SPI clocks might not be
+ * enabled yet, so we'll program the LCD from SPI PM resume callback.
+ */
+ if (!tpo_td043->spi_suspended) {
+ r = tpo_td043_power_on(tpo_td043);
+ if (r)
+ goto err1;
+ }
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
+err1:
+ omapdss_dpi_display_disable(dssdev);
+err0:
+ return r;
+}
+
+static void tpo_td043_disable_dss(struct omap_dss_device *dssdev)
+{
+ struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ return;
+
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
omapdss_dpi_display_disable(dssdev);
+
+ if (!tpo_td043->spi_suspended)
+ tpo_td043_power_off(tpo_td043);
}
static int tpo_td043_enable(struct omap_dss_device *dssdev)
{
- int ret;
-
dev_dbg(&dssdev->dev, "enable\n");
- ret = tpo_td043_power_on(dssdev);
- if (ret)
- return ret;
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
- return 0;
+ return tpo_td043_enable_dss(dssdev);
}
static void tpo_td043_disable(struct omap_dss_device *dssdev)
{
dev_dbg(&dssdev->dev, "disable\n");
- tpo_td043_power_off(dssdev);
+ tpo_td043_disable_dss(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}
static int tpo_td043_suspend(struct omap_dss_device *dssdev)
{
- tpo_td043_power_off(dssdev);
+ dev_dbg(&dssdev->dev, "suspend\n");
+
+ tpo_td043_disable_dss(dssdev);
+
dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
return 0;
}
static int tpo_td043_resume(struct omap_dss_device *dssdev)
{
- int r = 0;
-
- r = tpo_td043_power_on(dssdev);
- if (r)
- return r;
+ dev_dbg(&dssdev->dev, "resume\n");
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
- return 0;
+ return tpo_td043_enable_dss(dssdev);
}
static int tpo_td043_probe(struct omap_dss_device *dssdev)
goto fail_regulator;
}
+ tpo_td043->vdd_reg = regulator_get(&dssdev->dev, "vdd");
+ if (IS_ERR(tpo_td043->vdd_reg)) {
+ dev_err(&dssdev->dev, "failed to get LCD VDD regulator\n");
+ ret = PTR_ERR(tpo_td043->vdd_reg);
+ goto fail_vdd_regulator;
+ }
+
if (gpio_is_valid(nreset_gpio)) {
ret = gpio_request(nreset_gpio, "lcd reset");
if (ret < 0) {
fail_gpio_direction:
gpio_free(nreset_gpio);
fail_gpio_req:
+ regulator_put(tpo_td043->vdd_reg);
+fail_vdd_regulator:
regulator_put(tpo_td043->vcc_reg);
fail_regulator:
kfree(tpo_td043);
dev_dbg(&dssdev->dev, "remove\n");
sysfs_remove_group(&dssdev->dev.kobj, &tpo_td043_attr_group);
+ regulator_put(tpo_td043->vdd_reg);
regulator_put(tpo_td043->vcc_reg);
if (gpio_is_valid(nreset_gpio))
gpio_free(nreset_gpio);
}
+static void tpo_td043_set_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ dpi_set_timings(dssdev, timings);
+}
+
+static int tpo_td043_check_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ return dpi_check_timings(dssdev, timings);
+}
+
static struct omap_dss_driver tpo_td043_driver = {
.probe = tpo_td043_probe,
.remove = tpo_td043_remove,
.set_mirror = tpo_td043_set_hmirror,
.get_mirror = tpo_td043_get_hmirror,
+ .set_timings = tpo_td043_set_timings,
+ .check_timings = tpo_td043_check_timings,
+
.driver = {
.name = "tpo_td043mtea1_panel",
.owner = THIS_MODULE,
return -ENOMEM;
tpo_td043->spi = spi;
+ tpo_td043->nreset_gpio = dssdev->reset_gpio;
dev_set_drvdata(&spi->dev, tpo_td043);
dev_set_drvdata(&dssdev->dev, tpo_td043);
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int tpo_td043_spi_suspend(struct device *dev)
+{
+ struct tpo_td043_device *tpo_td043 = dev_get_drvdata(dev);
+
+ dev_dbg(dev, "tpo_td043_spi_suspend, tpo %p\n", tpo_td043);
+
+ tpo_td043->power_on_resume = tpo_td043->powered_on;
+ tpo_td043_power_off(tpo_td043);
+ tpo_td043->spi_suspended = 1;
+
+ return 0;
+}
+
+static int tpo_td043_spi_resume(struct device *dev)
+{
+ struct tpo_td043_device *tpo_td043 = dev_get_drvdata(dev);
+ int ret;
+
+ dev_dbg(dev, "tpo_td043_spi_resume\n");
+
+ if (tpo_td043->power_on_resume) {
+ ret = tpo_td043_power_on(tpo_td043);
+ if (ret)
+ return ret;
+ }
+ tpo_td043->spi_suspended = 0;
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tpo_td043_spi_pm,
+ tpo_td043_spi_suspend, tpo_td043_spi_resume);
+
static struct spi_driver tpo_td043_spi_driver = {
.driver = {
.name = "tpo_td043mtea1_panel_spi",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
+ .pm = &tpo_td043_spi_pm,
},
.probe = tpo_td043_spi_probe,
.remove = __devexit_p(tpo_td043_spi_remove),
git.openpandora.org / pandora-kernel.git / blobdiff