---

yaml --- r: 251035 b: refs/heads/master c: 2a89dc1 h: refs/heads/master i: 251033: 1f7ed41 251031: 130bc8b v: v3
git-mirror · May 11, 2011 · 56668a8 · 56668a8
1 parent 31e607e
commit 56668a8
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Showing 6 changed files with 32 additions and 18 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 40885ab31f754426c2e9a40362e568778baa5e82
+refs/heads/master: 2a89dc15331983621b772240ebef9dea2cbe5322
diff --git a/trunk/drivers/video/omap2/displays/panel-taal.c b/trunk/drivers/video/omap2/displays/panel-taal.c
@@ -932,7 +932,7 @@ static int taal_power_on(struct omap_dss_device *dssdev)
 
 	taal_hw_reset(dssdev);
 
-	omapdss_dsi_display_disable(dssdev);
+	omapdss_dsi_display_disable(dssdev, true);
 err0:
 	return r;
 }
@@ -955,7 +955,7 @@ static void taal_power_off(struct omap_dss_device *dssdev)
 		taal_hw_reset(dssdev);
 	}
 
-	omapdss_dsi_display_disable(dssdev);
+	omapdss_dsi_display_disable(dssdev, true);
 
 	td->enabled = 0;
 }

diff --git a/trunk/drivers/video/omap2/dss/dpi.c b/trunk/drivers/video/omap2/dss/dpi.c
@@ -206,7 +206,7 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 
 err4:
 	if (dpi_use_dsi_pll(dssdev))
-		dsi_pll_uninit();
+		dsi_pll_uninit(true);
 err3:
 	if (dpi_use_dsi_pll(dssdev))
 		dss_clk_disable(DSS_CLK_SYSCK);
@@ -227,7 +227,7 @@ void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
 
 	if (dpi_use_dsi_pll(dssdev)) {
 		dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
-		dsi_pll_uninit();
+		dsi_pll_uninit(true);
 		dss_clk_disable(DSS_CLK_SYSCK);
 	}
 

diff --git a/trunk/drivers/video/omap2/dss/dsi.c b/trunk/drivers/video/omap2/dss/dsi.c
@@ -246,6 +246,7 @@ static struct
 
 	struct dsi_clock_info current_cinfo;
 
+	bool vdds_dsi_enabled;
 	struct regulator *vdds_dsi_reg;
 
 	struct {
@@ -1445,9 +1446,12 @@ int dsi_pll_init(struct omap_dss_device *dssdev, bool enable_hsclk,
 	enable_clocks(1);
 	dsi_enable_pll_clock(1);
 
-	r = regulator_enable(dsi.vdds_dsi_reg);
-	if (r)
-		goto err0;
+	if (!dsi.vdds_dsi_enabled) {
+		r = regulator_enable(dsi.vdds_dsi_reg);
+		if (r)
+			goto err0;
+		dsi.vdds_dsi_enabled = true;
+	}
 
 	/* XXX PLL does not come out of reset without this... */
 	dispc_pck_free_enable(1);
@@ -1481,21 +1485,28 @@ int dsi_pll_init(struct omap_dss_device *dssdev, bool enable_hsclk,
 
 	return 0;
 err1:
-	regulator_disable(dsi.vdds_dsi_reg);
+	if (dsi.vdds_dsi_enabled) {
+		regulator_disable(dsi.vdds_dsi_reg);
+		dsi.vdds_dsi_enabled = false;
+	}
 err0:
 	enable_clocks(0);
 	dsi_enable_pll_clock(0);
 	return r;
 }
 
-void dsi_pll_uninit(void)
+void dsi_pll_uninit(bool disconnect_lanes)
 {
 	enable_clocks(0);
 	dsi_enable_pll_clock(0);
 
 	dsi.pll_locked = 0;
 	dsi_pll_power(DSI_PLL_POWER_OFF);
-	regulator_disable(dsi.vdds_dsi_reg);
+	if (disconnect_lanes) {
+		WARN_ON(!dsi.vdds_dsi_enabled);
+		regulator_disable(dsi.vdds_dsi_reg);
+		dsi.vdds_dsi_enabled = false;
+	}
 	DSSDBG("PLL uninit done\n");
 }
 
@@ -3642,12 +3653,13 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
 	dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
 	dss_select_dsi_clk_source(OMAP_DSS_CLK_SRC_FCK);
 err1:
-	dsi_pll_uninit();
+	dsi_pll_uninit(true);
 err0:
 	return r;
 }
 
-static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev)
+static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev,
+		bool disconnect_lanes)
 {
 	if (!dsi.ulps_enabled)
 		dsi_enter_ulps();
@@ -3662,7 +3674,7 @@ static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev)
 	dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
 	dss_select_dsi_clk_source(OMAP_DSS_CLK_SRC_FCK);
 	dsi_complexio_uninit();
-	dsi_pll_uninit();
+	dsi_pll_uninit(disconnect_lanes);
 }
 
 static int dsi_core_init(void)
@@ -3731,7 +3743,8 @@ int omapdss_dsi_display_enable(struct omap_dss_device *dssdev)
 }
 EXPORT_SYMBOL(omapdss_dsi_display_enable);
 
-void omapdss_dsi_display_disable(struct omap_dss_device *dssdev)
+void omapdss_dsi_display_disable(struct omap_dss_device *dssdev,
+		bool disconnect_lanes)
 {
 	DSSDBG("dsi_display_disable\n");
 
@@ -3741,7 +3754,7 @@ void omapdss_dsi_display_disable(struct omap_dss_device *dssdev)
 
 	dsi_display_uninit_dispc(dssdev);
 
-	dsi_display_uninit_dsi(dssdev);
+	dsi_display_uninit_dsi(dssdev, disconnect_lanes);
 
 	enable_clocks(0);
 	dsi_enable_pll_clock(0);

diff --git a/trunk/drivers/video/omap2/dss/dss.h b/trunk/drivers/video/omap2/dss/dss.h
@@ -294,7 +294,7 @@ int dsi_pll_calc_clock_div_pck(bool is_tft, unsigned long req_pck,
 		struct dispc_clock_info *dispc_cinfo);
 int dsi_pll_init(struct omap_dss_device *dssdev, bool enable_hsclk,
 		bool enable_hsdiv);
-void dsi_pll_uninit(void);
+void dsi_pll_uninit(bool disconnect_lanes);
 void dsi_get_overlay_fifo_thresholds(enum omap_plane plane,
 		u32 fifo_size, enum omap_burst_size *burst_size,
 		u32 *fifo_low, u32 *fifo_high);

diff --git a/trunk/include/video/omapdss.h b/trunk/include/video/omapdss.h
@@ -589,7 +589,8 @@ int omap_dsi_set_vc_id(struct omap_dss_device *dssdev, int channel, int vc_id);
 void omap_dsi_release_vc(struct omap_dss_device *dssdev, int channel);
 
 int omapdss_dsi_display_enable(struct omap_dss_device *dssdev);
-void omapdss_dsi_display_disable(struct omap_dss_device *dssdev);
+void omapdss_dsi_display_disable(struct omap_dss_device *dssdev,
+		bool disconnect_lanes);
 
 int omapdss_dpi_display_enable(struct omap_dss_device *dssdev);
 void omapdss_dpi_display_disable(struct omap_dss_device *dssdev);