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path: root/drivers/video/omap2/dss/dpi.c
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Diffstat (limited to 'drivers/video/omap2/dss/dpi.c')
-rw-r--r--drivers/video/omap2/dss/dpi.c399
1 files changed, 0 insertions, 399 deletions
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
deleted file mode 100644
index 2d71031baa2..00000000000
--- a/drivers/video/omap2/dss/dpi.c
+++ /dev/null
@@ -1,399 +0,0 @@
-/*
- * linux/drivers/video/omap2/dss/dpi.c
- *
- * Copyright (C) 2009 Nokia Corporation
- * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
- *
- * Some code and ideas taken from drivers/video/omap/ driver
- * by Imre Deak.
- *
- * 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 "DPI"
-
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-
-#include <plat/display.h>
-#include <plat/cpu.h>
-
-#include "dss.h"
-
-static struct {
- int update_enabled;
-} dpi;
-
-#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
-static int dpi_set_dsi_clk(bool is_tft, unsigned long pck_req,
- unsigned long *fck, int *lck_div, int *pck_div)
-{
- struct dsi_clock_info dsi_cinfo;
- struct dispc_clock_info dispc_cinfo;
- int r;
-
- r = dsi_pll_calc_clock_div_pck(is_tft, pck_req, &dsi_cinfo,
- &dispc_cinfo);
- if (r)
- return r;
-
- r = dsi_pll_set_clock_div(&dsi_cinfo);
- if (r)
- return r;
-
- dss_select_clk_source(0, 1);
-
- r = dispc_set_clock_div(&dispc_cinfo);
- if (r)
- return r;
-
- *fck = dsi_cinfo.dsi1_pll_fclk;
- *lck_div = dispc_cinfo.lck_div;
- *pck_div = dispc_cinfo.pck_div;
-
- return 0;
-}
-#else
-static int dpi_set_dispc_clk(bool is_tft, unsigned long pck_req,
- unsigned long *fck, int *lck_div, int *pck_div)
-{
- struct dss_clock_info dss_cinfo;
- struct dispc_clock_info dispc_cinfo;
- int r;
-
- r = dss_calc_clock_div(is_tft, pck_req, &dss_cinfo, &dispc_cinfo);
- if (r)
- return r;
-
- r = dss_set_clock_div(&dss_cinfo);
- if (r)
- return r;
-
- r = dispc_set_clock_div(&dispc_cinfo);
- if (r)
- return r;
-
- *fck = dss_cinfo.fck;
- *lck_div = dispc_cinfo.lck_div;
- *pck_div = dispc_cinfo.pck_div;
-
- return 0;
-}
-#endif
-
-static int dpi_set_mode(struct omap_dss_device *dssdev)
-{
- struct omap_video_timings *t = &dssdev->panel.timings;
- int lck_div, pck_div;
- unsigned long fck;
- unsigned long pck;
- bool is_tft;
- int r = 0;
-
- dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi,
- dssdev->panel.acb);
-
- is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
-
-#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
- r = dpi_set_dsi_clk(is_tft, t->pixel_clock * 1000,
- &fck, &lck_div, &pck_div);
-#else
- r = dpi_set_dispc_clk(is_tft, t->pixel_clock * 1000,
- &fck, &lck_div, &pck_div);
-#endif
- if (r)
- goto err0;
-
- 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);
-
-err0:
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
- return r;
-}
-
-static int dpi_basic_init(struct omap_dss_device *dssdev)
-{
- bool is_tft;
-
- is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
-
- dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
- dispc_set_lcd_display_type(is_tft ? OMAP_DSS_LCD_DISPLAY_TFT :
- OMAP_DSS_LCD_DISPLAY_STN);
- dispc_set_tft_data_lines(dssdev->phy.dpi.data_lines);
-
- return 0;
-}
-
-static int dpi_display_enable(struct omap_dss_device *dssdev)
-{
- 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("display already enabled\n");
- r = -EINVAL;
- goto err1;
- }
-
- dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- r = dpi_basic_init(dssdev);
- if (r)
- goto err2;
-
-#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
- dss_clk_enable(DSS_CLK_FCK2);
- r = dsi_pll_init(dssdev, 0, 1);
- if (r)
- goto err3;
-#endif
- r = dpi_set_mode(dssdev);
- if (r)
- goto err4;
-
- mdelay(2);
-
- dispc_enable_lcd_out(1);
-
- r = dssdev->driver->enable(dssdev);
- if (r)
- goto err5;
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
- return 0;
-
-err5:
- dispc_enable_lcd_out(0);
-err4:
-#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
- dsi_pll_uninit();
-err3:
- dss_clk_disable(DSS_CLK_FCK2);
-#endif
-err2:
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
-err1:
- omap_dss_stop_device(dssdev);
-err0:
- return r;
-}
-
-static int dpi_display_resume(struct omap_dss_device *dssdev);
-
-static void dpi_display_disable(struct omap_dss_device *dssdev)
-{
- if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
- return;
-
- if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
- dpi_display_resume(dssdev);
-
- dssdev->driver->disable(dssdev);
-
- dispc_enable_lcd_out(0);
-
-#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
- dss_select_clk_source(0, 0);
- dsi_pll_uninit();
- dss_clk_disable(DSS_CLK_FCK2);
-#endif
-
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
-
- omap_dss_stop_device(dssdev);
-}
-
-static int dpi_display_suspend(struct omap_dss_device *dssdev)
-{
- if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
- return -EINVAL;
-
- DSSDBG("dpi_display_suspend\n");
-
- if (dssdev->driver->suspend)
- dssdev->driver->suspend(dssdev);
-
- dispc_enable_lcd_out(0);
-
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
- return 0;
-}
-
-static int dpi_display_resume(struct omap_dss_device *dssdev)
-{
- if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
- return -EINVAL;
-
- DSSDBG("dpi_display_resume\n");
-
- dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- dispc_enable_lcd_out(1);
-
- if (dssdev->driver->resume)
- dssdev->driver->resume(dssdev);
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
- return 0;
-}
-
-static void dpi_set_timings(struct omap_dss_device *dssdev,
- struct omap_video_timings *timings)
-{
- DSSDBG("dpi_set_timings\n");
- dssdev->panel.timings = *timings;
- if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
- dpi_set_mode(dssdev);
- dispc_go(OMAP_DSS_CHANNEL_LCD);
- }
-}
-
-static int dpi_check_timings(struct omap_dss_device *dssdev,
- struct omap_video_timings *timings)
-{
- bool is_tft;
- int r;
- int lck_div, pck_div;
- unsigned long fck;
- unsigned long pck;
-
- if (!dispc_lcd_timings_ok(timings))
- return -EINVAL;
-
- if (timings->pixel_clock == 0)
- return -EINVAL;
-
- is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
-
-#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
- {
- struct dsi_clock_info dsi_cinfo;
- struct dispc_clock_info dispc_cinfo;
- r = dsi_pll_calc_clock_div_pck(is_tft,
- timings->pixel_clock * 1000,
- &dsi_cinfo, &dispc_cinfo);
-
- if (r)
- return r;
-
- fck = dsi_cinfo.dsi1_pll_fclk;
- lck_div = dispc_cinfo.lck_div;
- pck_div = dispc_cinfo.pck_div;
- }
-#else
- {
- struct dss_clock_info dss_cinfo;
- struct dispc_clock_info dispc_cinfo;
- r = dss_calc_clock_div(is_tft, timings->pixel_clock * 1000,
- &dss_cinfo, &dispc_cinfo);
-
- if (r)
- return r;
-
- fck = dss_cinfo.fck;
- lck_div = dispc_cinfo.lck_div;
- pck_div = dispc_cinfo.pck_div;
- }
-#endif
-
- pck = fck / lck_div / pck_div / 1000;
-
- timings->pixel_clock = pck;
-
- return 0;
-}
-
-static void dpi_get_timings(struct omap_dss_device *dssdev,
- struct omap_video_timings *timings)
-{
- *timings = dssdev->panel.timings;
-}
-
-static int dpi_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);
- dpi.update_enabled = 0;
- } else {
- dispc_enable_lcd_out(1);
- dpi.update_enabled = 1;
- }
-
- return 0;
-}
-
-static enum omap_dss_update_mode dpi_display_get_update_mode(
- struct omap_dss_device *dssdev)
-{
- return dpi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
- OMAP_DSS_UPDATE_DISABLED;
-}
-
-int dpi_init_display(struct omap_dss_device *dssdev)
-{
- DSSDBG("init_display\n");
-
- dssdev->enable = dpi_display_enable;
- dssdev->disable = dpi_display_disable;
- dssdev->suspend = dpi_display_suspend;
- dssdev->resume = dpi_display_resume;
- dssdev->set_timings = dpi_set_timings;
- dssdev->check_timings = dpi_check_timings;
- dssdev->get_timings = dpi_get_timings;
- dssdev->set_update_mode = dpi_display_set_update_mode;
- dssdev->get_update_mode = dpi_display_get_update_mode;
-
- return 0;
-}
-
-int dpi_init(void)
-{
- return 0;
-}
-
-void dpi_exit(void)
-{
-}
-
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 20:21:43 +0000