Beispiel #1
0
int omapdss_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 (cpu_is_omap34xx()) {
		r = regulator_enable(dpi.vdds_dsi_reg);
		if (r)
			goto err1;
	}

	dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK);

	r = dpi_basic_init(dssdev);
	if (r)
		goto err2;

	if (dpi_use_dsi_pll(dssdev)) {
		dss_clk_enable(DSS_CLK_SYSCK);
		r = dsi_pll_init(dpi.dsidev, 0, 1);
		if (r)
			goto err3;
	}

	r = dpi_set_mode(dssdev);
	if (r)
		goto err4;

	mdelay(2);

	dssdev->manager->enable(dssdev->manager);

	return 0;

err4:
	if (dpi_use_dsi_pll(dssdev))
		dsi_pll_uninit(dpi.dsidev, true);
err3:
	if (dpi_use_dsi_pll(dssdev))
		dss_clk_disable(DSS_CLK_SYSCK);
err2:
	dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK);
	if (cpu_is_omap34xx())
		regulator_disable(dpi.vdds_dsi_reg);
err1:
	omap_dss_stop_device(dssdev);
err0:
	return r;
}
Beispiel #2
0
int dpi_init_display(struct omap_dss_device *dssdev)
{
	DSSDBG("init_display\n");

	if (cpu_is_omap34xx() && dpi.vdds_dsi_reg == NULL) {
		struct regulator *vdds_dsi;

		vdds_dsi = dss_get_vdds_dsi();

		if (IS_ERR(vdds_dsi)) {
			DSSERR("can't get VDDS_DSI regulator\n");
			return PTR_ERR(vdds_dsi);
		}

		dpi.vdds_dsi_reg = vdds_dsi;
	}

	if (dpi_use_dsi_pll(dssdev)) {
		enum omap_dss_clk_source dispc_fclk_src =
			dssdev->clocks.dispc.dispc_fclk_src;
		dpi.dsidev = dpi_get_dsidev(dispc_fclk_src);
	}

#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
	dpi.fb_skip = dssdev->skip_init;
#endif

	return 0;
}
Beispiel #3
0
void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
{

	dssdev->manager->disable(dssdev->manager);
	if (dpi_use_dsi_pll(dssdev)) {
		dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
		dsi_pll_uninit(dpi.dsidev, true);
		dsi_runtime_put(dpi.dsidev);
	}

	dispc_runtime_put();

	dss_runtime_put();
#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
	if (dpi.fb_skip) {
		dssdev->dss_clks_disable();
		dpi.fb_skip = false;
	}
#endif

	if (cpu_is_omap34xx())
		regulator_disable(dpi.vdds_dsi_reg);

	omap_dss_stop_device(dssdev);
}
Beispiel #4
0
static int __init dpi_init_display(struct omap_dss_device *dssdev)
{
	DSSDBG("init_display\n");

	if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) &&
					dpi.vdds_dsi_reg == NULL) {
		struct regulator *vdds_dsi;

		vdds_dsi = dss_get_vdds_dsi();

		if (IS_ERR(vdds_dsi)) {
			DSSERR("can't get VDDS_DSI regulator\n");
			return PTR_ERR(vdds_dsi);
		}

		dpi.vdds_dsi_reg = vdds_dsi;
	}

	if (dpi_use_dsi_pll(dssdev)) {
		enum omap_dss_clk_source dispc_fclk_src =
			dssdev->clocks.dispc.dispc_fclk_src;
		dpi.dsidev = dpi_get_dsidev(dispc_fclk_src);
	}

	return 0;
}
Beispiel #5
0
static int dpi_set_mode(struct omap_dss_device *dssdev)
{
	struct omap_video_timings *t = &dpi.timings;
	struct omap_overlay_manager *mgr = dssdev->output->manager;
	int lck_div = 0, pck_div = 0;
	unsigned long fck = 0;
	unsigned long pck;
	int r = 0;

	if (dpi_use_dsi_pll(dssdev))
		r = dpi_set_dsi_clk(dssdev, t->pixel_clock * 1000, &fck,
				&lck_div, &pck_div);
	else
		r = dpi_set_dispc_clk(dssdev, t->pixel_clock * 1000, &fck,
				&lck_div, &pck_div);
	if (r)
		return r;

	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;
	}

	dss_mgr_set_timings(mgr, t);

	return 0;
}
Beispiel #6
0
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;
	struct dispc_clock_info dispc_cinfo;

	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;

	if (dpi_use_dsi_pll(dssdev)) {
		struct dsi_clock_info dsi_cinfo;
		r = dsi_pll_calc_clock_div_pck(dpi.dsidev, is_tft,
				timings->pixel_clock * 1000,
				&dsi_cinfo, &dispc_cinfo);

		if (r)
			return r;

		fck = dsi_cinfo.dsi_pll_hsdiv_dispc_clk;
	} else {
		struct dss_clock_info dss_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;

	pck = fck / lck_div / pck_div / 1000;

	timings->pixel_clock = pck;

	return 0;
}
Beispiel #7
0
void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
{
	dssdev->manager->disable(dssdev->manager);

	if (dpi_use_dsi_pll(dssdev)) {
		dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
		dsi_pll_uninit(dpi.dsidev, true);
		dss_clk_disable(DSS_CLK_SYSCK);
	}

	dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK);

	if (cpu_is_omap34xx())
		regulator_disable(dpi.vdds_dsi_reg);

	omap_dss_stop_device(dssdev);
}
Beispiel #8
0
int dpi_check_timings(struct omap_dss_device *dssdev,
			struct omap_video_timings *timings)
{
	int r;
	struct omap_overlay_manager *mgr = dssdev->output->manager;
	int lck_div, pck_div;
	unsigned long fck;
	unsigned long pck;
	struct dispc_clock_info dispc_cinfo;

	if (dss_mgr_check_timings(mgr, timings))
		return -EINVAL;

	if (timings->pixel_clock == 0)
		return -EINVAL;

	if (dpi_use_dsi_pll(dssdev)) {
		struct dsi_clock_info dsi_cinfo;
		r = dsi_pll_calc_clock_div_pck(dpi.dsidev,
				timings->pixel_clock * 1000,
				&dsi_cinfo, &dispc_cinfo);

		if (r)
			return r;

		fck = dsi_cinfo.dsi_pll_hsdiv_dispc_clk;
	} else {
		struct dss_clock_info dss_cinfo;
		r = dss_calc_clock_div(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;

	pck = fck / lck_div / pck_div / 1000;

	timings->pixel_clock = pck;

	return 0;
}
Beispiel #9
0
static int dpi_set_mode(struct omap_dss_device *dssdev)
{
	struct omap_video_timings *t = &dssdev->panel.timings;
	int lck_div = 0, pck_div = 0;
	unsigned long fck = 0;
	unsigned long pck;
	bool is_tft;
	int r = 0;

	dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK);

	dispc_set_pol_freq(dssdev->manager->id, dssdev->panel.config,
			dssdev->panel.acbi, dssdev->panel.acb);

	is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;

	if (dpi_use_dsi_pll(dssdev))
		r = dpi_set_dsi_clk(dssdev, is_tft, t->pixel_clock * 1000,
				&fck, &lck_div, &pck_div);
	else
		r = dpi_set_dispc_clk(dssdev, is_tft, t->pixel_clock * 1000,
				&fck, &lck_div, &pck_div);
	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(dssdev->manager->id, t);

err0:
	dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK);
	return r;
}
Beispiel #10
0
void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
{
	struct omap_overlay_manager *mgr = dssdev->output->manager;

	mutex_lock(&dpi.lock);

	dss_mgr_disable(mgr);

	if (dpi_use_dsi_pll(dssdev)) {
		dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
		dsi_pll_uninit(dpi.dsidev, true);
		dsi_runtime_put(dpi.dsidev);
	}

	dispc_runtime_put();

	if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI))
		regulator_disable(dpi.vdds_dsi_reg);

	omap_dss_stop_device(dssdev);

	mutex_unlock(&dpi.lock);
}
Beispiel #11
0
int omapdss_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 err_start_dev;
	}

	if (cpu_is_omap34xx()) {
		r = regulator_enable(dpi.vdds_dsi_reg);
		if (r)
			goto err_reg_enable;
	}

	r = dss_runtime_get();
	if (r)
		goto err_get_dss;
	if (!dssdev->skip_init) {
		r = dispc_runtime_get();
		if (r)
			goto err_get_dispc;
	}
	dpi_basic_init(dssdev);

	if (dpi_use_dsi_pll(dssdev)) {
		r = dsi_runtime_get(dpi.dsidev);
		if (r)
			goto err_get_dsi;
	if (!dssdev->skip_init) {
		r = dsi_pll_init(dpi.dsidev, 0, 1);
		if (r)
			goto err_dsi_pll_init;
		}
	}
	r = dpi_set_mode(dssdev);
	if (r)
		goto err_set_mode;

	mdelay(2);

	dssdev->manager->enable(dssdev->manager);
	if (dssdev->skip_init)
		dssdev->skip_init = false;
	return 0;

err_set_mode:
	if (dpi_use_dsi_pll(dssdev))
		dsi_pll_uninit(dpi.dsidev, true);
err_dsi_pll_init:
	if (dpi_use_dsi_pll(dssdev))
		dsi_runtime_put(dpi.dsidev);
err_get_dsi:
	dispc_runtime_put();
err_get_dispc:
	dss_runtime_put();
err_get_dss:
	if (cpu_is_omap34xx())
		regulator_disable(dpi.vdds_dsi_reg);
err_reg_enable:
	omap_dss_stop_device(dssdev);
err_start_dev:
	return r;
}
Beispiel #12
0
int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
{
	int r;

	if (cpu_is_omap34xx() && !dpi.vdds_dsi_reg) {
		DSSERR("no VDSS_DSI regulator\n");
		return -ENODEV;
	}

	if (dssdev->manager == NULL) {
		DSSERR("failed to enable display: no manager\n");
		return -ENODEV;
	}

	r = omap_dss_start_device(dssdev);
	if (r) {
		DSSERR("failed to start device\n");
		goto err_start_dev;
	}

	if (cpu_is_omap34xx()) {
		r = regulator_enable(dpi.vdds_dsi_reg);
		if (r)
			goto err_reg_enable;
	}

	r = dispc_runtime_get();
	if (r)
		goto err_get_dispc;

	dpi_basic_init(dssdev);

	if (dpi_use_dsi_pll(dssdev)) {
		r = dsi_runtime_get(dpi.dsidev);
		if (r)
			goto err_get_dsi;

		r = dsi_pll_init(dpi.dsidev, 0, 1);
		if (r)
			goto err_dsi_pll_init;
	}

	r = dpi_set_mode(dssdev);
	if (r)
		goto err_set_mode;

	mdelay(2);

	r = dss_mgr_enable(dssdev->manager);
	if (r)
		goto err_mgr_enable;

	return 0;

err_mgr_enable:
err_set_mode:
	if (dpi_use_dsi_pll(dssdev))
		dsi_pll_uninit(dpi.dsidev, true);
err_dsi_pll_init:
	if (dpi_use_dsi_pll(dssdev))
		dsi_runtime_put(dpi.dsidev);
err_get_dsi:
	dispc_runtime_put();
err_get_dispc:
	if (cpu_is_omap34xx())
		regulator_disable(dpi.vdds_dsi_reg);
err_reg_enable:
	omap_dss_stop_device(dssdev);
err_start_dev:
	return r;
}
Beispiel #13
0
int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
{
	struct omap_dss_output *out = dssdev->output;
	int r;

	mutex_lock(&dpi.lock);

	if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) && !dpi.vdds_dsi_reg) {
		DSSERR("no VDSS_DSI regulator\n");
		r = -ENODEV;
		goto err_no_reg;
	}

	if (out == NULL || out->manager == NULL) {
		DSSERR("failed to enable display: no output/manager\n");
		r = -ENODEV;
		goto err_no_out_mgr;
	}

	r = omap_dss_start_device(dssdev);
	if (r) {
		DSSERR("failed to start device\n");
		goto err_start_dev;
	}

	if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) {
		r = regulator_enable(dpi.vdds_dsi_reg);
		if (r)
			goto err_reg_enable;
	}

	r = dispc_runtime_get();
	if (r)
		goto err_get_dispc;

	r = dss_dpi_select_source(dssdev->channel);
	if (r)
		goto err_src_sel;

	if (dpi_use_dsi_pll(dssdev)) {
		r = dsi_runtime_get(dpi.dsidev);
		if (r)
			goto err_get_dsi;

		r = dsi_pll_init(dpi.dsidev, 0, 1);
		if (r)
			goto err_dsi_pll_init;
	}

	r = dpi_set_mode(dssdev);
	if (r)
		goto err_set_mode;

	dpi_config_lcd_manager(dssdev);

	mdelay(2);

	r = dss_mgr_enable(out->manager);
	if (r)
		goto err_mgr_enable;

	mutex_unlock(&dpi.lock);

	return 0;

err_mgr_enable:
err_set_mode:
	if (dpi_use_dsi_pll(dssdev))
		dsi_pll_uninit(dpi.dsidev, true);
err_dsi_pll_init:
	if (dpi_use_dsi_pll(dssdev))
		dsi_runtime_put(dpi.dsidev);
err_get_dsi:
err_src_sel:
	dispc_runtime_put();
err_get_dispc:
	if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI))
		regulator_disable(dpi.vdds_dsi_reg);
err_reg_enable:
	omap_dss_stop_device(dssdev);
err_start_dev:
err_no_out_mgr:
err_no_reg:
	mutex_unlock(&dpi.lock);
	return r;
}