diff options
Diffstat (limited to 'drivers/video/omap2/displays/panel-lgphilips-lb035q02.c')
| -rw-r--r-- | drivers/video/omap2/displays/panel-lgphilips-lb035q02.c | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c deleted file mode 100644 index 6c51430..0000000 --- a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c +++ /dev/null @@ -1,262 +0,0 @@ -/* - * LCD panel driver for LG.Philips LB035Q02 - * - * Author: Steve Sakoman <steve@sakoman.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/module.h> -#include <linux/delay.h> -#include <linux/spi/spi.h> -#include <linux/mutex.h> -#include <linux/gpio.h> - -#include <video/omapdss.h> -#include <video/omap-panel-data.h> - -struct lb035q02_data { - struct mutex lock; -}; - -static struct omap_video_timings lb035q02_timings = { - .x_res = 320, - .y_res = 240, - - .pixel_clock = 6500, - - .hsw = 2, - .hfp = 20, - .hbp = 68, - - .vsw = 2, - .vfp = 4, - .vbp = 18, - - .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_OPPOSITE_EDGES, -}; - -static inline struct panel_generic_dpi_data -*get_panel_data(const struct omap_dss_device *dssdev) -{ - return (struct panel_generic_dpi_data *) dssdev->data; -} - -static int lb035q02_panel_power_on(struct omap_dss_device *dssdev) -{ - struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); - int r, i; - - if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) - return 0; - - omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); - omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines); - - r = omapdss_dpi_display_enable(dssdev); - if (r) - goto err0; - - for (i = 0; i < panel_data->num_gpios; ++i) { - gpio_set_value_cansleep(panel_data->gpios[i], - panel_data->gpio_invert[i] ? 0 : 1); - } - - return 0; - -err0: - return r; -} - -static void lb035q02_panel_power_off(struct omap_dss_device *dssdev) -{ - struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); - int i; - - if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) - return; - - for (i = panel_data->num_gpios - 1; i >= 0; --i) { - gpio_set_value_cansleep(panel_data->gpios[i], - panel_data->gpio_invert[i] ? 1 : 0); - } - - omapdss_dpi_display_disable(dssdev); -} - -static int lb035q02_panel_probe(struct omap_dss_device *dssdev) -{ - struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); - struct lb035q02_data *ld; - int r, i; - - if (!panel_data) - return -EINVAL; - - dssdev->panel.timings = lb035q02_timings; - - ld = devm_kzalloc(dssdev->dev, sizeof(*ld), GFP_KERNEL); - if (!ld) - return -ENOMEM; - - for (i = 0; i < panel_data->num_gpios; ++i) { - r = devm_gpio_request_one(dssdev->dev, panel_data->gpios[i], - panel_data->gpio_invert[i] ? - GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW, - "panel gpio"); - if (r) - return r; - } - - mutex_init(&ld->lock); - dev_set_drvdata(dssdev->dev, ld); - - return 0; -} - -static void lb035q02_panel_remove(struct omap_dss_device *dssdev) -{ -} - -static int lb035q02_panel_enable(struct omap_dss_device *dssdev) -{ - struct lb035q02_data *ld = dev_get_drvdata(dssdev->dev); - int r; - - mutex_lock(&ld->lock); - - r = lb035q02_panel_power_on(dssdev); - if (r) - goto err; - dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; - - mutex_unlock(&ld->lock); - return 0; -err: - mutex_unlock(&ld->lock); - return r; -} - -static void lb035q02_panel_disable(struct omap_dss_device *dssdev) -{ - struct lb035q02_data *ld = dev_get_drvdata(dssdev->dev); - - mutex_lock(&ld->lock); - - lb035q02_panel_power_off(dssdev); - dssdev->state = OMAP_DSS_DISPLAY_DISABLED; - - mutex_unlock(&ld->lock); -} - -static struct omap_dss_driver lb035q02_driver = { - .probe = lb035q02_panel_probe, - .remove = lb035q02_panel_remove, - - .enable = lb035q02_panel_enable, - .disable = lb035q02_panel_disable, - - .driver = { - .name = "lgphilips_lb035q02_panel", - .owner = THIS_MODULE, - }, -}; - -static int lb035q02_write_reg(struct spi_device *spi, u8 reg, u16 val) -{ - struct spi_message msg; - struct spi_transfer index_xfer = { - .len = 3, - .cs_change = 1, - }; - struct spi_transfer value_xfer = { - .len = 3, - }; - u8 buffer[16]; - - spi_message_init(&msg); - - /* register index */ - buffer[0] = 0x70; - buffer[1] = 0x00; - buffer[2] = reg & 0x7f; - index_xfer.tx_buf = buffer; - spi_message_add_tail(&index_xfer, &msg); - - /* register value */ - buffer[4] = 0x72; - buffer[5] = val >> 8; - buffer[6] = val; - value_xfer.tx_buf = buffer + 4; - spi_message_add_tail(&value_xfer, &msg); - - return spi_sync(spi, &msg); -} - -static void init_lb035q02_panel(struct spi_device *spi) -{ - /* Init sequence from page 28 of the lb035q02 spec */ - lb035q02_write_reg(spi, 0x01, 0x6300); - lb035q02_write_reg(spi, 0x02, 0x0200); - lb035q02_write_reg(spi, 0x03, 0x0177); - lb035q02_write_reg(spi, 0x04, 0x04c7); - lb035q02_write_reg(spi, 0x05, 0xffc0); - lb035q02_write_reg(spi, 0x06, 0xe806); - lb035q02_write_reg(spi, 0x0a, 0x4008); - lb035q02_write_reg(spi, 0x0b, 0x0000); - lb035q02_write_reg(spi, 0x0d, 0x0030); - lb035q02_write_reg(spi, 0x0e, 0x2800); - lb035q02_write_reg(spi, 0x0f, 0x0000); - lb035q02_write_reg(spi, 0x16, 0x9f80); - lb035q02_write_reg(spi, 0x17, 0x0a0f); - lb035q02_write_reg(spi, 0x1e, 0x00c1); - lb035q02_write_reg(spi, 0x30, 0x0300); - lb035q02_write_reg(spi, 0x31, 0x0007); - lb035q02_write_reg(spi, 0x32, 0x0000); - lb035q02_write_reg(spi, 0x33, 0x0000); - lb035q02_write_reg(spi, 0x34, 0x0707); - lb035q02_write_reg(spi, 0x35, 0x0004); - lb035q02_write_reg(spi, 0x36, 0x0302); - lb035q02_write_reg(spi, 0x37, 0x0202); - lb035q02_write_reg(spi, 0x3a, 0x0a0d); - lb035q02_write_reg(spi, 0x3b, 0x0806); -} - -static int lb035q02_panel_spi_probe(struct spi_device *spi) -{ - init_lb035q02_panel(spi); - return omap_dss_register_driver(&lb035q02_driver); -} - -static int lb035q02_panel_spi_remove(struct spi_device *spi) -{ - omap_dss_unregister_driver(&lb035q02_driver); - return 0; -} - -static struct spi_driver lb035q02_spi_driver = { - .driver = { - .name = "lgphilips_lb035q02_panel-spi", - .owner = THIS_MODULE, - }, - .probe = lb035q02_panel_spi_probe, - .remove = lb035q02_panel_spi_remove, -}; - -module_spi_driver(lb035q02_spi_driver); - -MODULE_LICENSE("GPL"); |