示例#1
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);
}
/*
 * Checks if all devices are suspended/disabled.
 * Disables mainclk (DSS clocks on OMAP4) if true and do_clk_disable is true.
 */
int dss_clkdis_save_ctx(bool do_clk_disable)
{
	int r;
	struct bus_type *bus = dss_get_bus();

	DSSDBG("%s enter\n", __func__);

	r = bus_for_each_dev(bus, NULL, NULL, dss_check_state_disabled);

	if (r) {
		/* Some devices are not disabled/suspended */
		r = -EBUSY;
	} else {
		if (do_clk_disable) {
			atomic_set(&context_state, DSS_CONTEXT_NOT_RESTORED);
			save_all_ctx();
		}
		r = 0;
	}

	if (do_clk_disable)
		dsi_runtime_put();

	return r;
}
示例#3
0
static int dpi_verify_dsi_pll(struct platform_device *dsidev)
{
	int r;

	/* do initial setup with the PLL to see if it is operational */

	r = dsi_runtime_get(dsidev);
	if (r)
		return r;

	r = dsi_pll_init(dsidev, 0, 1);
	if (r) {
		dsi_runtime_put(dsidev);
		return r;
	}

	dsi_pll_uninit(dsidev, true);
	dsi_runtime_put(dsidev);

	return 0;
}
示例#4
0
void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
{
	dss_mgr_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();

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

	omap_dss_stop_device(dssdev);
}
示例#5
0
static void dpi_display_disable(struct omap_dss_device *dssdev)
{
	struct omap_overlay_manager *mgr = dpi.output.manager;

	mutex_lock(&dpi.lock);

	dss_mgr_disable(mgr);

	if (dpi.dsidev) {
		dss_select_lcd_clk_source(mgr->id, 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);

	mutex_unlock(&dpi.lock);
}
示例#6
0
static int dpi_display_enable(struct omap_dss_device *dssdev)
{
	struct omap_dss_device *out = &dpi.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;
	}

	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(out->manager->id);
	if (r)
		goto err_src_sel;

	if (dpi.dsidev) {
		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(out->manager);
	if (r)
		goto err_set_mode;

	dpi_config_lcd_manager(out->manager);

	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.dsidev)
		dsi_pll_uninit(dpi.dsidev, true);
err_dsi_pll_init:
	if (dpi.dsidev)
		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:
err_no_out_mgr:
err_no_reg:
	mutex_unlock(&dpi.lock);
	return r;
}
示例#7
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;
}
示例#8
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;
}