OMAPDSS: TFP410: rename dvi files to tfp410
Now that the tfp410 driver has been renamed in the code, this patch finishes the renaming by renaming the files. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tomi Valkeinen
381
drivers/video/omap2/displays/panel-tfp410.c
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381
drivers/video/omap2/displays/panel-tfp410.c
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@@ -0,0 +1,381 @@
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/*
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* TFP410 DPI-to-DVI chip
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*
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* Copyright (C) 2011 Texas Instruments Inc
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* Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <video/omapdss.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <drm/drm_edid.h>
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#include <video/omap-panel-tfp410.h>
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static const struct omap_video_timings tfp410_default_timings = {
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.x_res = 640,
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.y_res = 480,
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.pixel_clock = 23500,
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.hfp = 48,
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.hsw = 32,
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.hbp = 80,
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.vfp = 3,
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.vsw = 4,
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.vbp = 7,
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};
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struct panel_drv_data {
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struct omap_dss_device *dssdev;
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struct mutex lock;
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int pd_gpio;
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};
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static inline struct tfp410_platform_data
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*get_pdata(const struct omap_dss_device *dssdev)
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{
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return dssdev->data;
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}
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static int tfp410_power_on(struct omap_dss_device *dssdev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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int r;
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if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
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return 0;
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r = omapdss_dpi_display_enable(dssdev);
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if (r)
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goto err0;
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if (gpio_is_valid(ddata->pd_gpio))
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gpio_set_value(ddata->pd_gpio, 1);
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return 0;
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err0:
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return r;
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}
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static void tfp410_power_off(struct omap_dss_device *dssdev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
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return;
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if (gpio_is_valid(ddata->pd_gpio))
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gpio_set_value(ddata->pd_gpio, 0);
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omapdss_dpi_display_disable(dssdev);
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}
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static int tfp410_probe(struct omap_dss_device *dssdev)
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{
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struct tfp410_platform_data *pdata = get_pdata(dssdev);
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struct panel_drv_data *ddata;
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int r;
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ddata = kzalloc(sizeof(*ddata), GFP_KERNEL);
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if (!ddata)
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return -ENOMEM;
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dssdev->panel.timings = tfp410_default_timings;
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dssdev->panel.config = OMAP_DSS_LCD_TFT;
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ddata->dssdev = dssdev;
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mutex_init(&ddata->lock);
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if (pdata)
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ddata->pd_gpio = pdata->power_down_gpio;
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else
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ddata->pd_gpio = -1;
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if (gpio_is_valid(ddata->pd_gpio)) {
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r = gpio_request_one(ddata->pd_gpio, GPIOF_OUT_INIT_LOW,
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"tfp410 pd");
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if (r) {
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dev_err(&dssdev->dev, "Failed to request PD GPIO %d\n",
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ddata->pd_gpio);
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ddata->pd_gpio = -1;
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}
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}
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dev_set_drvdata(&dssdev->dev, ddata);
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return 0;
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}
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static void __exit tfp410_remove(struct omap_dss_device *dssdev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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mutex_lock(&ddata->lock);
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if (gpio_is_valid(ddata->pd_gpio))
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gpio_free(ddata->pd_gpio);
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dev_set_drvdata(&dssdev->dev, NULL);
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mutex_unlock(&ddata->lock);
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kfree(ddata);
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}
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static int tfp410_enable(struct omap_dss_device *dssdev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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int r;
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mutex_lock(&ddata->lock);
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r = tfp410_power_on(dssdev);
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if (r == 0)
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dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
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mutex_unlock(&ddata->lock);
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return r;
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}
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static void tfp410_disable(struct omap_dss_device *dssdev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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mutex_lock(&ddata->lock);
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tfp410_power_off(dssdev);
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dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
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mutex_unlock(&ddata->lock);
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}
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static int tfp410_suspend(struct omap_dss_device *dssdev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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mutex_lock(&ddata->lock);
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tfp410_power_off(dssdev);
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dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
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mutex_unlock(&ddata->lock);
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return 0;
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}
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static int tfp410_resume(struct omap_dss_device *dssdev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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int r;
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mutex_lock(&ddata->lock);
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r = tfp410_power_on(dssdev);
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if (r == 0)
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dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
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mutex_unlock(&ddata->lock);
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return r;
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}
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static void tfp410_set_timings(struct omap_dss_device *dssdev,
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struct omap_video_timings *timings)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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mutex_lock(&ddata->lock);
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dpi_set_timings(dssdev, timings);
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mutex_unlock(&ddata->lock);
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}
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static void tfp410_get_timings(struct omap_dss_device *dssdev,
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struct omap_video_timings *timings)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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mutex_lock(&ddata->lock);
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*timings = dssdev->panel.timings;
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mutex_unlock(&ddata->lock);
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}
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static int tfp410_check_timings(struct omap_dss_device *dssdev,
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struct omap_video_timings *timings)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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int r;
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mutex_lock(&ddata->lock);
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r = dpi_check_timings(dssdev, timings);
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mutex_unlock(&ddata->lock);
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return r;
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}
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static int tfp410_ddc_read(struct i2c_adapter *adapter,
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unsigned char *buf, u16 count, u8 offset)
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{
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int r, retries;
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for (retries = 3; retries > 0; retries--) {
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struct i2c_msg msgs[] = {
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{
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.addr = DDC_ADDR,
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.flags = 0,
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.len = 1,
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.buf = &offset,
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}, {
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.addr = DDC_ADDR,
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.flags = I2C_M_RD,
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.len = count,
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.buf = buf,
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}
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};
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r = i2c_transfer(adapter, msgs, 2);
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if (r == 2)
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return 0;
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if (r != -EAGAIN)
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break;
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}
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return r < 0 ? r : -EIO;
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}
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static int tfp410_read_edid(struct omap_dss_device *dssdev,
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u8 *edid, int len)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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struct tfp410_platform_data *pdata = get_pdata(dssdev);
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struct i2c_adapter *adapter;
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int r, l, bytes_read;
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mutex_lock(&ddata->lock);
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if (pdata->i2c_bus_num == 0) {
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r = -ENODEV;
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goto err;
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}
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adapter = i2c_get_adapter(pdata->i2c_bus_num);
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if (!adapter) {
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dev_err(&dssdev->dev, "Failed to get I2C adapter, bus %d\n",
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pdata->i2c_bus_num);
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r = -EINVAL;
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goto err;
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}
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l = min(EDID_LENGTH, len);
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r = tfp410_ddc_read(adapter, edid, l, 0);
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if (r)
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goto err;
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bytes_read = l;
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/* if there are extensions, read second block */
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if (len > EDID_LENGTH && edid[0x7e] > 0) {
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l = min(EDID_LENGTH, len - EDID_LENGTH);
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r = tfp410_ddc_read(adapter, edid + EDID_LENGTH,
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l, EDID_LENGTH);
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if (r)
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goto err;
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bytes_read += l;
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}
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mutex_unlock(&ddata->lock);
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return bytes_read;
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err:
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mutex_unlock(&ddata->lock);
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return r;
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}
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static bool tfp410_detect(struct omap_dss_device *dssdev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
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struct tfp410_platform_data *pdata = get_pdata(dssdev);
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struct i2c_adapter *adapter;
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unsigned char out;
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int r;
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mutex_lock(&ddata->lock);
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if (pdata->i2c_bus_num == 0)
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goto out;
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adapter = i2c_get_adapter(pdata->i2c_bus_num);
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if (!adapter)
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goto out;
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r = tfp410_ddc_read(adapter, &out, 1, 0);
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mutex_unlock(&ddata->lock);
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return r == 0;
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out:
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mutex_unlock(&ddata->lock);
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return true;
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}
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static struct omap_dss_driver tfp410_driver = {
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.probe = tfp410_probe,
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.remove = __exit_p(tfp410_remove),
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.enable = tfp410_enable,
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.disable = tfp410_disable,
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.suspend = tfp410_suspend,
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.resume = tfp410_resume,
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.set_timings = tfp410_set_timings,
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.get_timings = tfp410_get_timings,
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.check_timings = tfp410_check_timings,
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.read_edid = tfp410_read_edid,
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.detect = tfp410_detect,
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.driver = {
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.name = "tfp410",
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.owner = THIS_MODULE,
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},
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};
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static int __init tfp410_init(void)
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{
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return omap_dss_register_driver(&tfp410_driver);
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}
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static void __exit tfp410_exit(void)
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{
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omap_dss_unregister_driver(&tfp410_driver);
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}
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module_init(tfp410_init);
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module_exit(tfp410_exit);
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MODULE_LICENSE("GPL");
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