aboutsummaryrefslogtreecommitdiff
path: root/drivers/video/omap2/dss/sdi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/video/omap2/dss/sdi.c')
-rw-r--r--drivers/video/omap2/dss/sdi.c277
1 files changed, 0 insertions, 277 deletions
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
deleted file mode 100644
index c24f307d3da..00000000000
--- a/drivers/video/omap2/dss/sdi.c
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * linux/drivers/video/omap2/dss/sdi.c
- *
- * Copyright (C) 2009 Nokia Corporation
- * Author: Tomi Valkeinen <tomi.valkeinen@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/>.
- */
-
-#define DSS_SUBSYS_NAME "SDI"
-
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-
-#include <plat/display.h>
-#include "dss.h"
-
-static struct {
- bool skip_init;
- bool update_enabled;
-} sdi;
-
-static void sdi_basic_init(void)
-{
- dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
-
- dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
- dispc_set_tft_data_lines(24);
- dispc_lcd_enable_signal_polarity(1);
-}
-
-static int sdi_display_enable(struct omap_dss_device *dssdev)
-{
- struct omap_video_timings *t = &dssdev->panel.timings;
- struct dss_clock_info dss_cinfo;
- struct dispc_clock_info dispc_cinfo;
- u16 lck_div, pck_div;
- unsigned long fck;
- unsigned long pck;
- int r;
-
- r = omap_dss_start_device(dssdev);
- if (r) {
- DSSERR("failed to start device\n");
- goto err0;
- }
-
- if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
- DSSERR("dssdev already enabled\n");
- r = -EINVAL;
- 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);
-
- sdi_basic_init();
-
- /* 15.5.9.1.2 */
- dssdev->panel.config |= OMAP_DSS_LCD_RF | OMAP_DSS_LCD_ONOFF;
-
- dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi,
- dssdev->panel.acb);
-
- if (!sdi.skip_init) {
- r = dss_calc_clock_div(1, t->pixel_clock * 1000,
- &dss_cinfo, &dispc_cinfo);
- } else {
- r = dss_get_clock_div(&dss_cinfo);
- r = dispc_get_clock_div(&dispc_cinfo);
- }
-
- if (r)
- goto err2;
-
- fck = dss_cinfo.fck;
- lck_div = dispc_cinfo.lck_div;
- pck_div = dispc_cinfo.pck_div;
-
- pck = fck / lck_div / pck_div / 1000;
-
- if (pck != t->pixel_clock) {
- DSSWARN("Could not find exact pixel clock. Requested %d kHz, "
- "got %lu kHz\n",
- t->pixel_clock, pck);
-
- t->pixel_clock = pck;
- }
-
-
- dispc_set_lcd_timings(t);
-
- r = dss_set_clock_div(&dss_cinfo);
- if (r)
- goto err2;
-
- r = dispc_set_clock_div(&dispc_cinfo);
- if (r)
- goto err2;
-
- if (!sdi.skip_init) {
- dss_sdi_init(dssdev->phy.sdi.datapairs);
- r = dss_sdi_enable();
- if (r)
- goto err1;
- mdelay(2);
- }
-
- dispc_enable_lcd_out(1);
-
- if (dssdev->driver->enable) {
- r = dssdev->driver->enable(dssdev);
- if (r)
- goto err3;
- }
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
- sdi.skip_init = 0;
-
- return 0;
-err3:
- dispc_enable_lcd_out(0);
-err2:
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
-err1:
- omap_dss_stop_device(dssdev);
-err0:
- return r;
-}
-
-static int sdi_display_resume(struct omap_dss_device *dssdev);
-
-static void sdi_display_disable(struct omap_dss_device *dssdev)
-{
- if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
- return;
-
- if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
- if (sdi_display_resume(dssdev))
- return;
-
- if (dssdev->driver->disable)
- dssdev->driver->disable(dssdev);
-
- dispc_enable_lcd_out(0);
-
- dss_sdi_disable();
-
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
-
- omap_dss_stop_device(dssdev);
-}
-
-static int sdi_display_suspend(struct omap_dss_device *dssdev)
-{
- if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
- return -EINVAL;
-
- if (dssdev->driver->suspend)
- dssdev->driver->suspend(dssdev);
-
- dispc_enable_lcd_out(0);
-
- dss_sdi_disable();
-
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
- return 0;
-}
-
-static int sdi_display_resume(struct omap_dss_device *dssdev)
-{
- int r;
-
- if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
- return -EINVAL;
-
- dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- r = dss_sdi_enable();
- if (r)
- goto err;
- mdelay(2);
-
- dispc_enable_lcd_out(1);
-
- if (dssdev->driver->resume)
- dssdev->driver->resume(dssdev);
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
- return 0;
-err:
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
- return r;
-}
-
-static int sdi_display_set_update_mode(struct omap_dss_device *dssdev,
- enum omap_dss_update_mode mode)
-{
- if (mode == OMAP_DSS_UPDATE_MANUAL)
- return -EINVAL;
-
- if (mode == OMAP_DSS_UPDATE_DISABLED) {
- dispc_enable_lcd_out(0);
- sdi.update_enabled = 0;
- } else {
- dispc_enable_lcd_out(1);
- sdi.update_enabled = 1;
- }
-
- return 0;
-}
-
-static enum omap_dss_update_mode sdi_display_get_update_mode(
- struct omap_dss_device *dssdev)
-{
- return sdi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
- OMAP_DSS_UPDATE_DISABLED;
-}
-
-static void sdi_get_timings(struct omap_dss_device *dssdev,
- struct omap_video_timings *timings)
-{
- *timings = dssdev->panel.timings;
-}
-
-int sdi_init_display(struct omap_dss_device *dssdev)
-{
- DSSDBG("SDI init\n");
-
- dssdev->enable = sdi_display_enable;
- dssdev->disable = sdi_display_disable;
- dssdev->suspend = sdi_display_suspend;
- dssdev->resume = sdi_display_resume;
- dssdev->set_update_mode = sdi_display_set_update_mode;
- dssdev->get_update_mode = sdi_display_get_update_mode;
- dssdev->get_timings = sdi_get_timings;
-
- return 0;
-}
-
-int sdi_init(bool skip_init)
-{
- /* we store this for first display enable, then clear it */
- sdi.skip_init = skip_init;
-
- /*
- * Enable clocks already here, otherwise there would be a toggle
- * of them until sdi_display_enable is called.
- */
- if (skip_init)
- dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
- return 0;
-}
-
-void sdi_exit(void)
-{
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-14 14:24:26 +0000