From a0d269ec0bfab89f7b025bf6e1e596e9a6f9d999 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Tue, 27 Nov 2012 17:05:54 +0200
Subject: OMAPDSS: DSI: remove DSI & DISPC clk divisors from dssdev

struct omap_dss_device contains DSS clock divisors. The idea is that the
board file can pass precalculated divisors to the display driver.
However, these divsors are no longer needed, as the omapdss driver can
calculate the divisors during runtime.

This patch removes the divisors from omap_dss_device, and their uses
from the dsi driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
---
 include/video/omapdss.h | 21 ---------------------
 1 file changed, 21 deletions(-)

(limited to 'include/video')

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index caefa093337d..255bcf558f89 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -591,27 +591,6 @@ struct omap_dss_device {
 	} phy;
 
 	struct {
-		struct {
-			struct {
-				u16 lck_div;
-				u16 pck_div;
-				enum omap_dss_clk_source lcd_clk_src;
-			} channel;
-
-			enum omap_dss_clk_source dispc_fclk_src;
-		} dispc;
-
-		struct {
-			/* regn is one greater than TRM's REGN value */
-			u16 regn;
-			u16 regm;
-			u16 regm_dispc;
-			u16 regm_dsi;
-
-			u16 lp_clk_div;
-			enum omap_dss_clk_source dsi_fclk_src;
-		} dsi;
-
 		struct {
 			/* regn is one greater than TRM's REGN value */
 			u16 regn;
-- 
cgit v1.2.3-55-g7522


From 4fdfdf062d896c0afa18aa2d977a933e38c7c96c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Tue, 12 Feb 2013 15:15:21 +0200
Subject: OMAPDSS: HDMI: remove HDMI clk divisors from dssdev

struct omap_dss_device contains HDMI clock divisors. The idea is that the
board file can pass precalculated divisors to the display driver.
However, these divsors are no longer needed, as the omapdss driver can
calculate the divisors during runtime.

This patch removes the divisors from omap_dss_device, and their uses
from the hdmi driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 11 +++--------
 include/video/omapdss.h        |  8 --------
 2 files changed, 3 insertions(+), 16 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 72923645dcce..b53de043c03f 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -472,17 +472,12 @@ static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
 	 * Input clock is predivided by N + 1
 	 * out put of which is reference clk
 	 */
-	if (dssdev->clocks.hdmi.regn == 0)
-		pi->regn = HDMI_DEFAULT_REGN;
-	else
-		pi->regn = dssdev->clocks.hdmi.regn;
+
+	pi->regn = HDMI_DEFAULT_REGN;
 
 	refclk = clkin / pi->regn;
 
-	if (dssdev->clocks.hdmi.regm2 == 0)
-		pi->regm2 = HDMI_DEFAULT_REGM2;
-	else
-		pi->regm2 = dssdev->clocks.hdmi.regm2;
+	pi->regm2 = HDMI_DEFAULT_REGM2;
 
 	/*
 	 * multiplier is pixel_clk/ref_clk
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 255bcf558f89..2cb2b0e812af 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -590,14 +590,6 @@ struct omap_dss_device {
 		} venc;
 	} phy;
 
-	struct {
-		struct {
-			/* regn is one greater than TRM's REGN value */
-			u16 regn;
-			u16 regm2;
-		} hdmi;
-	} clocks;
-
 	struct {
 		struct omap_video_timings timings;
 
-- 
cgit v1.2.3-55-g7522


From 7286a08fb5607dbcf1a47639609d53d76b60e957 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Mon, 18 Feb 2013 13:06:01 +0200
Subject: OMAPDSS: add output->name

Add name field to omapdss's outputs so that in the following patches
panels refer to the output by their name. The name also helps debugging.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
---
 drivers/video/omap2/dss/dpi.c  | 1 +
 drivers/video/omap2/dss/dsi.c  | 1 +
 drivers/video/omap2/dss/hdmi.c | 1 +
 drivers/video/omap2/dss/rfbi.c | 1 +
 drivers/video/omap2/dss/sdi.c  | 1 +
 drivers/video/omap2/dss/venc.c | 1 +
 include/video/omapdss.h        | 2 ++
 7 files changed, 8 insertions(+)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index cb6b280124f1..e393b6ab60db 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -512,6 +512,7 @@ static void __init dpi_init_output(struct platform_device *pdev)
 	out->pdev = pdev;
 	out->id = OMAP_DSS_OUTPUT_DPI;
 	out->type = OMAP_DISPLAY_TYPE_DPI;
+	out->name = "dpi.0";
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 815c93047151..294c83299cea 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -5183,6 +5183,7 @@ static void __init dsi_init_output(struct platform_device *dsidev)
 			OMAP_DSS_OUTPUT_DSI1 : OMAP_DSS_OUTPUT_DSI2;
 
 	out->type = OMAP_DISPLAY_TYPE_DSI;
+	out->name = dsi->module_id == 0 ? "dsi.0" : "dsi.1";
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 04edf325429b..9cbca03eff43 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1046,6 +1046,7 @@ static void __init hdmi_init_output(struct platform_device *pdev)
 	out->pdev = pdev;
 	out->id = OMAP_DSS_OUTPUT_HDMI;
 	out->type = OMAP_DISPLAY_TYPE_HDMI;
+	out->name = "hdmi.0";
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index e903dd3f54d9..d9d7f3511a7b 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -1025,6 +1025,7 @@ static void __init rfbi_init_output(struct platform_device *pdev)
 	out->pdev = pdev;
 	out->id = OMAP_DSS_OUTPUT_DBI;
 	out->type = OMAP_DISPLAY_TYPE_DBI;
+	out->name = "rfbi.0";
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 62b5374ce438..c27b58ad8e4d 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -278,6 +278,7 @@ static void __init sdi_init_output(struct platform_device *pdev)
 	out->pdev = pdev;
 	out->id = OMAP_DSS_OUTPUT_SDI;
 	out->type = OMAP_DISPLAY_TYPE_SDI;
+	out->name = "sdi.0";
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 006caf3cb509..4c07a25d3d9b 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -819,6 +819,7 @@ static void __init venc_init_output(struct platform_device *pdev)
 	out->pdev = pdev;
 	out->id = OMAP_DSS_OUTPUT_VENC;
 	out->type = OMAP_DISPLAY_TYPE_VENC;
+	out->name = "venc.0";
 
 	dss_register_output(out);
 }
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 2cb2b0e812af..fa800b7ef832 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -541,6 +541,8 @@ struct omap_dss_writeback_info {
 struct omap_dss_output {
 	struct list_head list;
 
+	const char *name;
+
 	/* display type supported by the output */
 	enum omap_display_type type;
 
-- 
cgit v1.2.3-55-g7522


From 2eea5ae6c102a5088e39733115ff7762a4674887 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Wed, 13 Feb 2013 11:23:54 +0200
Subject: OMAPDSS: add output->dispc_channel

The DISPC channel used for each output is currently passed in panel
platform data from the board files.

To simplify this, and to make the panel drivers less dependent on OMAP,
this patch changes omapdss to resolve the channel independently. The
channel is resolved based on the OMAP version and, in case of DSI, the
DSI module id. This resolved channel is stored into a new field in
output, dispc_channel.

The few places where dssdev->channel was used are changed to use
output->recommended_channel. After this patch, dssdev->channel is
obsolete.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
---
 drivers/video/omap2/dss/dpi.c            | 38 ++++++++++++++++++++----
 drivers/video/omap2/dss/dsi.c            | 50 ++++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/hdmi.c           |  3 +-
 drivers/video/omap2/dss/rfbi.c           |  1 +
 drivers/video/omap2/dss/sdi.c            |  1 +
 drivers/video/omap2/dss/venc.c           |  3 +-
 drivers/video/omap2/omapfb/omapfb-main.c |  2 +-
 include/video/omapdss.h                  |  4 +++
 8 files changed, 91 insertions(+), 11 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index e393b6ab60db..ab6d8b0e94c7 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -396,6 +396,36 @@ static int __init dpi_verify_dsi_pll(struct platform_device *dsidev)
 	return 0;
 }
 
+/*
+ * Return a hardcoded channel for the DPI output. This should work for
+ * current use cases, but this can be later expanded to either resolve
+ * the channel in some more dynamic manner, or get the channel as a user
+ * parameter.
+ */
+static enum omap_channel dpi_get_channel(void)
+{
+	switch (omapdss_get_version()) {
+	case OMAPDSS_VER_OMAP24xx:
+	case OMAPDSS_VER_OMAP34xx_ES1:
+	case OMAPDSS_VER_OMAP34xx_ES3:
+	case OMAPDSS_VER_OMAP3630:
+	case OMAPDSS_VER_AM35xx:
+		return OMAP_DSS_CHANNEL_LCD;
+
+	case OMAPDSS_VER_OMAP4430_ES1:
+	case OMAPDSS_VER_OMAP4430_ES2:
+	case OMAPDSS_VER_OMAP4:
+		return OMAP_DSS_CHANNEL_LCD2;
+
+	case OMAPDSS_VER_OMAP5:
+		return OMAP_DSS_CHANNEL_LCD3;
+
+	default:
+		DSSWARN("unsupported DSS version\n");
+		return OMAP_DSS_CHANNEL_LCD;
+	}
+}
+
 static int __init dpi_init_display(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev;
@@ -416,12 +446,7 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
 		dpi.vdds_dsi_reg = vdds_dsi;
 	}
 
-	/*
-	 * XXX We shouldn't need dssdev->channel for this. The dsi pll clock
-	 * source for DPI is SoC integration detail, not something that should
-	 * be configured in the dssdev
-	 */
-	dsidev = dpi_get_dsidev(dssdev->channel);
+	dsidev = dpi_get_dsidev(dpi.output.dispc_channel);
 
 	if (dsidev && dpi_verify_dsi_pll(dsidev)) {
 		dsidev = NULL;
@@ -513,6 +538,7 @@ static void __init dpi_init_output(struct platform_device *pdev)
 	out->id = OMAP_DSS_OUTPUT_DPI;
 	out->type = OMAP_DISPLAY_TYPE_DPI;
 	out->name = "dpi.0";
+	out->dispc_channel = dpi_get_channel();
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 294c83299cea..d13e77c01d7e 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4946,6 +4946,55 @@ void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev,
 }
 EXPORT_SYMBOL(omapdss_dsi_set_videomode_timings);
 
+/*
+ * Return a hardcoded channel for the DSI output. This should work for
+ * current use cases, but this can be later expanded to either resolve
+ * the channel in some more dynamic manner, or get the channel as a user
+ * parameter.
+ */
+static enum omap_channel dsi_get_channel(int module_id)
+{
+	switch (omapdss_get_version()) {
+	case OMAPDSS_VER_OMAP24xx:
+		DSSWARN("DSI not supported\n");
+		return OMAP_DSS_CHANNEL_LCD;
+
+	case OMAPDSS_VER_OMAP34xx_ES1:
+	case OMAPDSS_VER_OMAP34xx_ES3:
+	case OMAPDSS_VER_OMAP3630:
+	case OMAPDSS_VER_AM35xx:
+		return OMAP_DSS_CHANNEL_LCD;
+
+	case OMAPDSS_VER_OMAP4430_ES1:
+	case OMAPDSS_VER_OMAP4430_ES2:
+	case OMAPDSS_VER_OMAP4:
+		switch (module_id) {
+		case 0:
+			return OMAP_DSS_CHANNEL_LCD;
+		case 1:
+			return OMAP_DSS_CHANNEL_LCD2;
+		default:
+			DSSWARN("unsupported module id\n");
+			return OMAP_DSS_CHANNEL_LCD;
+		}
+
+	case OMAPDSS_VER_OMAP5:
+		switch (module_id) {
+		case 0:
+			return OMAP_DSS_CHANNEL_LCD;
+		case 1:
+			return OMAP_DSS_CHANNEL_LCD3;
+		default:
+			DSSWARN("unsupported module id\n");
+			return OMAP_DSS_CHANNEL_LCD;
+		}
+
+	default:
+		DSSWARN("unsupported DSS version\n");
+		return OMAP_DSS_CHANNEL_LCD;
+	}
+}
+
 static int __init dsi_init_display(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev =
@@ -5184,6 +5233,7 @@ static void __init dsi_init_output(struct platform_device *dsidev)
 
 	out->type = OMAP_DISPLAY_TYPE_DSI;
 	out->name = dsi->module_id == 0 ? "dsi.0" : "dsi.1";
+	out->dispc_channel = dsi_get_channel(dsi->module_id);
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 9cbca03eff43..a6f953898d94 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1012,8 +1012,6 @@ static void __init hdmi_probe_pdata(struct platform_device *pdev)
 	hdmi.ls_oe_gpio = priv->ls_oe_gpio;
 	hdmi.hpd_gpio = priv->hpd_gpio;
 
-	dssdev->channel = OMAP_DSS_CHANNEL_DIGIT;
-
 	r = hdmi_init_display(dssdev);
 	if (r) {
 		DSSERR("device %s init failed: %d\n", dssdev->name, r);
@@ -1047,6 +1045,7 @@ static void __init hdmi_init_output(struct platform_device *pdev)
 	out->id = OMAP_DSS_OUTPUT_HDMI;
 	out->type = OMAP_DISPLAY_TYPE_HDMI;
 	out->name = "hdmi.0";
+	out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index d9d7f3511a7b..1a691bb27547 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -1026,6 +1026,7 @@ static void __init rfbi_init_output(struct platform_device *pdev)
 	out->id = OMAP_DSS_OUTPUT_DBI;
 	out->type = OMAP_DISPLAY_TYPE_DBI;
 	out->name = "rfbi.0";
+	out->dispc_channel = OMAP_DSS_CHANNEL_LCD;
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index c27b58ad8e4d..3888cfa0881c 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -279,6 +279,7 @@ static void __init sdi_init_output(struct platform_device *pdev)
 	out->id = OMAP_DSS_OUTPUT_SDI;
 	out->type = OMAP_DISPLAY_TYPE_SDI;
 	out->name = "sdi.0";
+	out->dispc_channel = OMAP_DSS_CHANNEL_LCD;
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 4c07a25d3d9b..5cb983e2f170 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -786,8 +786,6 @@ static void __init venc_probe_pdata(struct platform_device *vencdev)
 
 	dss_copy_device_pdata(dssdev, plat_dssdev);
 
-	dssdev->channel = OMAP_DSS_CHANNEL_DIGIT;
-
 	r = venc_init_display(dssdev);
 	if (r) {
 		DSSERR("device %s init failed: %d\n", dssdev->name, r);
@@ -820,6 +818,7 @@ static void __init venc_init_output(struct platform_device *pdev)
 	out->id = OMAP_DSS_OUTPUT_VENC;
 	out->type = OMAP_DISPLAY_TYPE_VENC;
 	out->name = "venc.0";
+	out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
 
 	dss_register_output(out);
 }
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index ca585ef37f25..f38348ea3375 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2388,7 +2388,7 @@ static int omapfb_init_connections(struct omapfb2_device *fbdev,
 		struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
 		struct omap_dss_output *out = dssdev->output;
 
-		mgr = omap_dss_get_overlay_manager(dssdev->channel);
+		mgr = omap_dss_get_overlay_manager(out->dispc_channel);
 
 		if (!mgr || !out)
 			continue;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index fa800b7ef832..41fb434093e9 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -546,6 +546,9 @@ struct omap_dss_output {
 	/* display type supported by the output */
 	enum omap_display_type type;
 
+	/* DISPC channel for this output */
+	enum omap_channel dispc_channel;
+
 	/* output instance */
 	enum omap_dss_output_id id;
 
@@ -563,6 +566,7 @@ struct omap_dss_device {
 
 	enum omap_display_type type;
 
+	/* obsolete, to be removed */
 	enum omap_channel channel;
 
 	union {
-- 
cgit v1.2.3-55-g7522


From 777f05cc79892c1a5c25a72cfb3cc24554378a45 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Wed, 6 Mar 2013 11:10:29 +0200
Subject: OMAPDSS: DSI: simplify dsi configuration

We have a bunch of dsi functions that are used to do the basic
configuration for DSI. To simplify things, and to make sure we have all
the necessary information, create a single dsi config function, which
does the basic configuration.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-taal.c | 16 ++++---
 drivers/video/omap2/dss/dsi.c             | 74 +++++--------------------------
 include/video/omapdss.h                   | 23 +++++-----
 3 files changed, 31 insertions(+), 82 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index bc4c95ee41cc..eb86cbae8c2a 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -919,6 +919,13 @@ static int taal_power_on(struct omap_dss_device *dssdev)
 	struct taal_data *td = dev_get_drvdata(&dssdev->dev);
 	u8 id1, id2, id3;
 	int r;
+	struct omap_dss_dsi_config dsi_config = {
+		.mode = OMAP_DSS_DSI_CMD_MODE,
+		.pixel_format = OMAP_DSS_DSI_FMT_RGB888,
+		.timings = &dssdev->panel.timings,
+		.hs_clk = 216000000,
+		.lp_clk = 10000000,
+	};
 
 	r = omapdss_dsi_configure_pins(dssdev, &td->pin_config);
 	if (r) {
@@ -926,14 +933,9 @@ static int taal_power_on(struct omap_dss_device *dssdev)
 		goto err0;
 	};
 
-	omapdss_dsi_set_size(dssdev, dssdev->panel.timings.x_res,
-		dssdev->panel.timings.y_res);
-	omapdss_dsi_set_pixel_format(dssdev, OMAP_DSS_DSI_FMT_RGB888);
-	omapdss_dsi_set_operation_mode(dssdev, OMAP_DSS_DSI_CMD_MODE);
-
-	r = omapdss_dsi_set_clocks(dssdev, 216000000, 10000000);
+	r = omapdss_dsi_set_config(dssdev, &dsi_config);
 	if (r) {
-		dev_err(&dssdev->dev, "failed to set HS and LP clocks\n");
+		dev_err(&dssdev->dev, "failed to configure DSI\n");
 		goto err0;
 	}
 
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index dd13bd9138fc..8cb43af60fe1 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4278,7 +4278,7 @@ int omapdss_dsi_configure_pins(struct omap_dss_device *dssdev,
 }
 EXPORT_SYMBOL(omapdss_dsi_configure_pins);
 
-int omapdss_dsi_set_clocks(struct omap_dss_device *dssdev,
+static int dsi_set_clocks(struct omap_dss_device *dssdev,
 		unsigned long ddr_clk, unsigned long lp_clk)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
@@ -4293,8 +4293,6 @@ int omapdss_dsi_set_clocks(struct omap_dss_device *dssdev,
 
 	DSSDBG("Setting DSI clocks: ddr_clk %lu, lp_clk %lu", ddr_clk, lp_clk);
 
-	mutex_lock(&dsi->lock);
-
 	/* Calculate PLL output clock */
 	r = dsi_pll_calc_ddrfreq(dsidev, ddr_clk * 4, &cinfo);
 	if (r)
@@ -4336,13 +4334,10 @@ int omapdss_dsi_set_clocks(struct omap_dss_device *dssdev,
 		OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI :
 		OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI;
 
-	mutex_unlock(&dsi->lock);
 	return 0;
 err:
-	mutex_unlock(&dsi->lock);
 	return r;
 }
-EXPORT_SYMBOL(omapdss_dsi_set_clocks);
 
 int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 {
@@ -4884,75 +4879,26 @@ int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable)
 }
 EXPORT_SYMBOL(omapdss_dsi_enable_te);
 
-void omapdss_dsi_set_timings(struct omap_dss_device *dssdev,
-		struct omap_video_timings *timings)
+int omapdss_dsi_set_config(struct omap_dss_device *dssdev,
+		const struct omap_dss_dsi_config *config)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 
 	mutex_lock(&dsi->lock);
 
-	dsi->timings = *timings;
-
-	mutex_unlock(&dsi->lock);
-}
-EXPORT_SYMBOL(omapdss_dsi_set_timings);
-
-void omapdss_dsi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h)
-{
-	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
-	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-
-	mutex_lock(&dsi->lock);
+	dsi->timings = *config->timings;
+	dsi->vm_timings = *config->vm_timings;
+	dsi->pix_fmt = config->pixel_format;
+	dsi->mode = config->mode;
 
-	dsi->timings.x_res = w;
-	dsi->timings.y_res = h;
+	dsi_set_clocks(dssdev, config->hs_clk, config->lp_clk);
 
 	mutex_unlock(&dsi->lock);
-}
-EXPORT_SYMBOL(omapdss_dsi_set_size);
 
-void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev,
-		enum omap_dss_dsi_pixel_format fmt)
-{
-	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
-	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-
-	mutex_lock(&dsi->lock);
-
-	dsi->pix_fmt = fmt;
-
-	mutex_unlock(&dsi->lock);
-}
-EXPORT_SYMBOL(omapdss_dsi_set_pixel_format);
-
-void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev,
-		enum omap_dss_dsi_mode mode)
-{
-	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
-	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-
-	mutex_lock(&dsi->lock);
-
-	dsi->mode = mode;
-
-	mutex_unlock(&dsi->lock);
-}
-EXPORT_SYMBOL(omapdss_dsi_set_operation_mode);
-
-void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev,
-		struct omap_dss_dsi_videomode_timings *timings)
-{
-	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
-	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-
-	mutex_lock(&dsi->lock);
-
-	dsi->vm_timings = *timings;
-
-	mutex_unlock(&dsi->lock);
+	return 0;
 }
-EXPORT_SYMBOL(omapdss_dsi_set_videomode_timings);
+EXPORT_SYMBOL(omapdss_dsi_set_config);
 
 /*
  * Return a hardcoded channel for the DSI output. This should work for
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 41fb434093e9..4dd4cea41bd4 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -282,6 +282,16 @@ struct omap_dss_dsi_videomode_timings {
 	int window_sync;
 };
 
+struct omap_dss_dsi_config {
+	enum omap_dss_dsi_mode mode;
+	enum omap_dss_dsi_pixel_format pixel_format;
+	const struct omap_video_timings *timings;
+	const struct omap_dss_dsi_videomode_timings *vm_timings;
+
+	unsigned long hs_clk;
+	unsigned long lp_clk;
+};
+
 void dsi_bus_lock(struct omap_dss_device *dssdev);
 void dsi_bus_unlock(struct omap_dss_device *dssdev);
 int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
@@ -806,15 +816,8 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
 void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel,
 		bool enable);
 int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable);
-void omapdss_dsi_set_timings(struct omap_dss_device *dssdev,
-		struct omap_video_timings *timings);
-void omapdss_dsi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h);
-void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev,
-		enum omap_dss_dsi_pixel_format fmt);
-void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev,
-		enum omap_dss_dsi_mode mode);
-void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev,
-		struct omap_dss_dsi_videomode_timings *timings);
+int omapdss_dsi_set_config(struct omap_dss_device *dssdev,
+		const struct omap_dss_dsi_config *config);
 
 int omap_dsi_update(struct omap_dss_device *dssdev, int channel,
 		void (*callback)(int, void *), void *data);
@@ -823,8 +826,6 @@ 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_configure_pins(struct omap_dss_device *dssdev,
 		const struct omap_dsi_pin_config *pin_cfg);
-int omapdss_dsi_set_clocks(struct omap_dss_device *dssdev,
-		unsigned long ddr_clk, unsigned long lp_clk);
 
 int omapdss_dsi_display_enable(struct omap_dss_device *dssdev);
 void omapdss_dsi_display_disable(struct omap_dss_device *dssdev,
-- 
cgit v1.2.3-55-g7522


From 478d7df8af89f449bacc4e67ff35dc630400c0ca Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Tue, 5 Mar 2013 16:29:36 +0200
Subject: OMAPDSS: DSI: add enum omap_dss_dsi_trans_mode

Instead of managing DSI sync ends with booleans, add an enum for the DSI
transfer mode. This is much cleaner way to handle the DSI syncs.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 15 ++++++++++-----
 include/video/omapdss.h       | 13 ++++++++++---
 2 files changed, 20 insertions(+), 8 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 590da06e6a82..e8f5bdb2796c 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3813,18 +3813,22 @@ static void dsi_config_vp_num_line_buffers(struct platform_device *dsidev)
 static void dsi_config_vp_sync_events(struct platform_device *dsidev)
 {
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-	bool vsync_end = dsi->vm_timings.vp_vsync_end;
-	bool hsync_end = dsi->vm_timings.vp_hsync_end;
+	bool sync_end;
 	u32 r;
 
+	if (dsi->vm_timings.trans_mode == OMAP_DSS_DSI_PULSE_MODE)
+		sync_end = true;
+	else
+		sync_end = false;
+
 	r = dsi_read_reg(dsidev, DSI_CTRL);
 	r = FLD_MOD(r, 1, 9, 9);		/* VP_DE_POL */
 	r = FLD_MOD(r, 1, 10, 10);		/* VP_HSYNC_POL */
 	r = FLD_MOD(r, 1, 11, 11);		/* VP_VSYNC_POL */
 	r = FLD_MOD(r, 1, 15, 15);		/* VP_VSYNC_START */
-	r = FLD_MOD(r, vsync_end, 16, 16);	/* VP_VSYNC_END */
+	r = FLD_MOD(r, sync_end, 16, 16);	/* VP_VSYNC_END */
 	r = FLD_MOD(r, 1, 17, 17);		/* VP_HSYNC_START */
-	r = FLD_MOD(r, hsync_end, 18, 18);	/* VP_HSYNC_END */
+	r = FLD_MOD(r, sync_end, 18, 18);	/* VP_HSYNC_END */
 	dsi_write_reg(dsidev, DSI_CTRL, r);
 }
 
@@ -4171,11 +4175,12 @@ static void dsi_proto_timings(struct platform_device *dsidev)
 		int vfp = dsi->vm_timings.vfp;
 		int vbp = dsi->vm_timings.vbp;
 		int window_sync = dsi->vm_timings.window_sync;
-		bool hsync_end = dsi->vm_timings.vp_hsync_end;
+		bool hsync_end;
 		struct omap_video_timings *timings = &dsi->timings;
 		int bpp = dsi_get_pixel_size(dsi->pix_fmt);
 		int tl, t_he, width_bytes;
 
+		hsync_end = dsi->vm_timings.trans_mode == OMAP_DSS_DSI_PULSE_MODE;
 		t_he = hsync_end ?
 			((hsa == 0 && ndl == 3) ? 1 : DIV_ROUND_UP(4, ndl)) : 0;
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 4dd4cea41bd4..7f774c5f8b6b 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -257,6 +257,15 @@ void rfbi_bus_unlock(void);
 
 /* DSI */
 
+enum omap_dss_dsi_trans_mode {
+	/* Sync Pulses: both sync start and end packets sent */
+	OMAP_DSS_DSI_PULSE_MODE,
+	/* Sync Events: only sync start packets sent */
+	OMAP_DSS_DSI_EVENT_MODE,
+	/* Burst: only sync start packets sent, pixels are time compressed */
+	OMAP_DSS_DSI_BURST_MODE,
+};
+
 struct omap_dss_dsi_videomode_timings {
 	/* DSI video mode blanking data */
 	/* Unit: byte clock cycles */
@@ -274,9 +283,7 @@ struct omap_dss_dsi_videomode_timings {
 	int hbp_blanking_mode;
 	int hfp_blanking_mode;
 
-	/* Video port sync events */
-	bool vp_vsync_end;
-	bool vp_hsync_end;
+	enum omap_dss_dsi_trans_mode trans_mode;
 
 	bool ddr_clk_always_on;
 	int window_sync;
-- 
cgit v1.2.3-55-g7522


From f1e0001f973cfbec62d702cbd3d56f6b703cc90e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Tue, 5 Mar 2013 17:21:35 +0200
Subject: OMAPDSS: DSI: use new clock calculation code

Use the new clock calculation code in the DSI driver.

The new code does not need DSI video mode parameters from the panel
driver, like the old code does. Instead the new code is given the normal
video timings, and a few DSI parameters, which are used to create DSI
video timings.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-taal.c |   7 +-
 drivers/video/omap2/dss/dsi.c             | 557 +++++++++++++++++++++++++++++-
 include/video/omapdss.h                   |  20 +-
 3 files changed, 566 insertions(+), 18 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index eb86cbae8c2a..2fc923de23cc 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -787,6 +787,7 @@ static int taal_probe(struct omap_dss_device *dssdev)
 
 	dssdev->panel.timings.x_res = 864;
 	dssdev->panel.timings.y_res = 480;
+	dssdev->panel.timings.pixel_clock = DIV_ROUND_UP(864 * 480 * 60, 1000);
 	dssdev->panel.dsi_pix_fmt = OMAP_DSS_DSI_FMT_RGB888;
 	dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE |
 		OMAP_DSS_DISPLAY_CAP_TEAR_ELIM;
@@ -923,8 +924,10 @@ static int taal_power_on(struct omap_dss_device *dssdev)
 		.mode = OMAP_DSS_DSI_CMD_MODE,
 		.pixel_format = OMAP_DSS_DSI_FMT_RGB888,
 		.timings = &dssdev->panel.timings,
-		.hs_clk = 216000000,
-		.lp_clk = 10000000,
+		.hs_clk_min = 150000000,
+		.hs_clk_max = 300000000,
+		.lp_clk_min = 7000000,
+		.lp_clk_max = 10000000,
 	};
 
 	r = omapdss_dsi_configure_pins(dssdev, &td->pin_config);
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index a4e0560c2799..de88e69ef0a2 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -255,6 +255,24 @@ struct dsi_isr_tables {
 	struct dsi_isr_data isr_table_cio[DSI_MAX_NR_ISRS];
 };
 
+struct dsi_clk_calc_ctx {
+	struct platform_device *dsidev;
+
+	/* inputs */
+
+	const struct omap_dss_dsi_config *config;
+
+	unsigned long req_pck_min, req_pck_nom, req_pck_max;
+
+	/* outputs */
+
+	struct dsi_clock_info dsi_cinfo;
+	struct dispc_clock_info dispc_cinfo;
+
+	struct omap_video_timings dispc_vm;
+	struct omap_dss_dsi_videomode_timings dsi_vm;
+};
+
 struct dsi_data {
 	struct platform_device *pdev;
 	void __iomem	*base;
@@ -1201,6 +1219,25 @@ static unsigned long dsi_fclk_rate(struct platform_device *dsidev)
 	return r;
 }
 
+static int dsi_lp_clock_calc(struct dsi_clock_info *cinfo,
+		unsigned long lp_clk_min, unsigned long lp_clk_max)
+{
+	unsigned long dsi_fclk = cinfo->dsi_pll_hsdiv_dsi_clk;
+	unsigned lp_clk_div;
+	unsigned long lp_clk;
+
+	lp_clk_div = DIV_ROUND_UP(dsi_fclk, lp_clk_max * 2);
+	lp_clk = dsi_fclk / 2 / lp_clk_div;
+
+	if (lp_clk < lp_clk_min || lp_clk > lp_clk_max)
+		return -EINVAL;
+
+	cinfo->lp_clk_div = lp_clk_div;
+	cinfo->lp_clk = lp_clk;
+
+	return 0;
+}
+
 static int dsi_set_lp_clk_divisor(struct platform_device *dsidev)
 {
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
@@ -1577,8 +1614,7 @@ found:
 	return 0;
 }
 
-static void dsi_pll_calc_dsi_fck(struct platform_device *dsidev,
-		struct dsi_clock_info *cinfo)
+static void dsi_pll_calc_dsi_fck(struct dsi_clock_info *cinfo)
 {
 	unsigned long max_dsi_fck;
 
@@ -4369,7 +4405,7 @@ static int dsi_set_clocks(struct omap_dss_device *dssdev,
 		goto err;
 
 	/* Calculate PLL's DSI clock */
-	dsi_pll_calc_dsi_fck(dsidev, &cinfo);
+	dsi_pll_calc_dsi_fck(&cinfo);
 
 	/* Calculate PLL's DISPC clock and pck & lck divs */
 	pck = cinfo.clkin4ddr / 16 * (dsi->num_lanes_used - 1) * 8 / bpp;
@@ -4693,13 +4729,6 @@ static int dsi_display_init_dispc(struct platform_device *dsidev,
 			OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC);
 
 	if (dsi->mode == OMAP_DSS_DSI_CMD_MODE) {
-		dsi->timings.hsw = 1;
-		dsi->timings.hfp = 1;
-		dsi->timings.hbp = 1;
-		dsi->timings.vsw = 1;
-		dsi->timings.vfp = 0;
-		dsi->timings.vbp = 0;
-
 		r = dss_mgr_register_framedone_handler(mgr,
 				dsi_framedone_irq_callback, dsidev);
 		if (r) {
@@ -4941,24 +4970,526 @@ int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable)
 }
 EXPORT_SYMBOL(omapdss_dsi_enable_te);
 
+#ifdef PRINT_VERBOSE_VM_TIMINGS
+static void print_dsi_vm(const char *str,
+		const struct omap_dss_dsi_videomode_timings *t)
+{
+	unsigned long byteclk = t->hsclk / 4;
+	int bl, wc, pps, tot;
+
+	wc = DIV_ROUND_UP(t->hact * t->bitspp, 8);
+	pps = DIV_ROUND_UP(wc + 6, t->ndl); /* pixel packet size */
+	bl = t->hss + t->hsa + t->hse + t->hbp + t->hfp;
+	tot = bl + pps;
+
+#define TO_DSI_T(x) ((u32)div64_u64((u64)x * 1000000000llu, byteclk))
+
+	pr_debug("%s bck %lu, %u/%u/%u/%u/%u/%u = %u+%u = %u, "
+			"%u/%u/%u/%u/%u/%u = %u + %u = %u\n",
+			str,
+			byteclk,
+			t->hss, t->hsa, t->hse, t->hbp, pps, t->hfp,
+			bl, pps, tot,
+			TO_DSI_T(t->hss),
+			TO_DSI_T(t->hsa),
+			TO_DSI_T(t->hse),
+			TO_DSI_T(t->hbp),
+			TO_DSI_T(pps),
+			TO_DSI_T(t->hfp),
+
+			TO_DSI_T(bl),
+			TO_DSI_T(pps),
+
+			TO_DSI_T(tot));
+#undef TO_DSI_T
+}
+
+static void print_dispc_vm(const char *str, const struct omap_video_timings *t)
+{
+	unsigned long pck = t->pixel_clock * 1000;
+	int hact, bl, tot;
+
+	hact = t->x_res;
+	bl = t->hsw + t->hbp + t->hfp;
+	tot = hact + bl;
+
+#define TO_DISPC_T(x) ((u32)div64_u64((u64)x * 1000000000llu, pck))
+
+	pr_debug("%s pck %lu, %u/%u/%u/%u = %u+%u = %u, "
+			"%u/%u/%u/%u = %u + %u = %u\n",
+			str,
+			pck,
+			t->hsw, t->hbp, hact, t->hfp,
+			bl, hact, tot,
+			TO_DISPC_T(t->hsw),
+			TO_DISPC_T(t->hbp),
+			TO_DISPC_T(hact),
+			TO_DISPC_T(t->hfp),
+			TO_DISPC_T(bl),
+			TO_DISPC_T(hact),
+			TO_DISPC_T(tot));
+#undef TO_DISPC_T
+}
+
+/* note: this is not quite accurate */
+static void print_dsi_dispc_vm(const char *str,
+		const struct omap_dss_dsi_videomode_timings *t)
+{
+	struct omap_video_timings vm = { 0 };
+	unsigned long byteclk = t->hsclk / 4;
+	unsigned long pck;
+	u64 dsi_tput;
+	int dsi_hact, dsi_htot;
+
+	dsi_tput = (u64)byteclk * t->ndl * 8;
+	pck = (u32)div64_u64(dsi_tput, t->bitspp);
+	dsi_hact = DIV_ROUND_UP(DIV_ROUND_UP(t->hact * t->bitspp, 8) + 6, t->ndl);
+	dsi_htot = t->hss + t->hsa + t->hse + t->hbp + dsi_hact + t->hfp;
+
+	vm.pixel_clock = pck / 1000;
+	vm.hsw = div64_u64((u64)(t->hsa + t->hse) * pck, byteclk);
+	vm.hbp = div64_u64((u64)t->hbp * pck, byteclk);
+	vm.hfp = div64_u64((u64)t->hfp * pck, byteclk);
+	vm.x_res = t->hact;
+
+	print_dispc_vm(str, &vm);
+}
+#endif /* PRINT_VERBOSE_VM_TIMINGS */
+
+static bool dsi_cm_calc_dispc_cb(int lckd, int pckd, unsigned long lck,
+		unsigned long pck, void *data)
+{
+	struct dsi_clk_calc_ctx *ctx = data;
+	struct omap_video_timings *t = &ctx->dispc_vm;
+
+	ctx->dispc_cinfo.lck_div = lckd;
+	ctx->dispc_cinfo.pck_div = pckd;
+	ctx->dispc_cinfo.lck = lck;
+	ctx->dispc_cinfo.pck = pck;
+
+	*t = *ctx->config->timings;
+	t->pixel_clock = pck / 1000;
+	t->x_res = ctx->config->timings->x_res;
+	t->y_res = ctx->config->timings->y_res;
+	t->hsw = t->hfp = t->hbp = t->vsw = 1;
+	t->vfp = t->vbp = 0;
+
+	return true;
+}
+
+static bool dsi_cm_calc_hsdiv_cb(int regm_dispc, unsigned long dispc,
+		void *data)
+{
+	struct dsi_clk_calc_ctx *ctx = data;
+
+	ctx->dsi_cinfo.regm_dispc = regm_dispc;
+	ctx->dsi_cinfo.dsi_pll_hsdiv_dispc_clk = dispc;
+
+	return dispc_div_calc(dispc, ctx->req_pck_min, ctx->req_pck_max,
+			dsi_cm_calc_dispc_cb, ctx);
+}
+
+static bool dsi_cm_calc_pll_cb(int regn, int regm, unsigned long fint,
+		unsigned long pll, void *data)
+{
+	struct dsi_clk_calc_ctx *ctx = data;
+
+	ctx->dsi_cinfo.regn = regn;
+	ctx->dsi_cinfo.regm = regm;
+	ctx->dsi_cinfo.fint = fint;
+	ctx->dsi_cinfo.clkin4ddr = pll;
+
+	return dsi_hsdiv_calc(ctx->dsidev, pll, ctx->req_pck_min,
+			dsi_cm_calc_hsdiv_cb, ctx);
+}
+
+static bool dsi_cm_calc(struct dsi_data *dsi,
+		const struct omap_dss_dsi_config *cfg,
+		struct dsi_clk_calc_ctx *ctx)
+{
+	unsigned long clkin;
+	int bitspp, ndl;
+	unsigned long pll_min, pll_max;
+	unsigned long pck, txbyteclk;
+
+	clkin = clk_get_rate(dsi->sys_clk);
+	bitspp = dsi_get_pixel_size(cfg->pixel_format);
+	ndl = dsi->num_lanes_used - 1;
+
+	/*
+	 * Here we should calculate minimum txbyteclk to be able to send the
+	 * frame in time, and also to handle TE. That's not very simple, though,
+	 * especially as we go to LP between each pixel packet due to HW
+	 * "feature". So let's just estimate very roughly and multiply by 1.5.
+	 */
+	pck = cfg->timings->pixel_clock * 1000;
+	pck = pck * 3 / 2;
+	txbyteclk = pck * bitspp / 8 / ndl;
+
+	memset(ctx, 0, sizeof(*ctx));
+	ctx->dsidev = dsi->pdev;
+	ctx->config = cfg;
+	ctx->req_pck_min = pck;
+	ctx->req_pck_nom = pck;
+	ctx->req_pck_max = pck * 3 / 2;
+	ctx->dsi_cinfo.clkin = clkin;
+
+	pll_min = max(cfg->hs_clk_min * 4, txbyteclk * 4 * 4);
+	pll_max = cfg->hs_clk_max * 4;
+
+	return dsi_pll_calc(dsi->pdev, clkin,
+			pll_min, pll_max,
+			dsi_cm_calc_pll_cb, ctx);
+}
+
+static bool dsi_vm_calc_blanking(struct dsi_clk_calc_ctx *ctx)
+{
+	struct dsi_data *dsi = dsi_get_dsidrv_data(ctx->dsidev);
+	const struct omap_dss_dsi_config *cfg = ctx->config;
+	int bitspp = dsi_get_pixel_size(cfg->pixel_format);
+	int ndl = dsi->num_lanes_used - 1;
+	unsigned long hsclk = ctx->dsi_cinfo.clkin4ddr / 4;
+	unsigned long byteclk = hsclk / 4;
+
+	unsigned long dispc_pck, req_pck_min, req_pck_nom, req_pck_max;
+	int xres;
+	int panel_htot, panel_hbl; /* pixels */
+	int dispc_htot, dispc_hbl; /* pixels */
+	int dsi_htot, dsi_hact, dsi_hbl, hss, hse; /* byteclks */
+	int hfp, hsa, hbp;
+	const struct omap_video_timings *req_vm;
+	struct omap_video_timings *dispc_vm;
+	struct omap_dss_dsi_videomode_timings *dsi_vm;
+	u64 dsi_tput, dispc_tput;
+
+	dsi_tput = (u64)byteclk * ndl * 8;
+
+	req_vm = cfg->timings;
+	req_pck_min = ctx->req_pck_min;
+	req_pck_max = ctx->req_pck_max;
+	req_pck_nom = ctx->req_pck_nom;
+
+	dispc_pck = ctx->dispc_cinfo.pck;
+	dispc_tput = (u64)dispc_pck * bitspp;
+
+	xres = req_vm->x_res;
+
+	panel_hbl = req_vm->hfp + req_vm->hbp + req_vm->hsw;
+	panel_htot = xres + panel_hbl;
+
+	dsi_hact = DIV_ROUND_UP(DIV_ROUND_UP(xres * bitspp, 8) + 6, ndl);
+
+	/*
+	 * When there are no line buffers, DISPC and DSI must have the
+	 * same tput. Otherwise DISPC tput needs to be higher than DSI's.
+	 */
+	if (dsi->line_buffer_size < xres * bitspp / 8) {
+		if (dispc_tput != dsi_tput)
+			return false;
+	} else {
+		if (dispc_tput < dsi_tput)
+			return false;
+	}
+
+	/* DSI tput must be over the min requirement */
+	if (dsi_tput < (u64)bitspp * req_pck_min)
+		return false;
+
+	/* When non-burst mode, DSI tput must be below max requirement. */
+	if (cfg->trans_mode != OMAP_DSS_DSI_BURST_MODE) {
+		if (dsi_tput > (u64)bitspp * req_pck_max)
+			return false;
+	}
+
+	hss = DIV_ROUND_UP(4, ndl);
+
+	if (cfg->trans_mode == OMAP_DSS_DSI_PULSE_MODE) {
+		if (ndl == 3 && req_vm->hsw == 0)
+			hse = 1;
+		else
+			hse = DIV_ROUND_UP(4, ndl);
+	} else {
+		hse = 0;
+	}
+
+	/* DSI htot to match the panel's nominal pck */
+	dsi_htot = div64_u64((u64)panel_htot * byteclk, req_pck_nom);
+
+	/* fail if there would be no time for blanking */
+	if (dsi_htot < hss + hse + dsi_hact)
+		return false;
+
+	/* total DSI blanking needed to achieve panel's TL */
+	dsi_hbl = dsi_htot - dsi_hact;
+
+	/* DISPC htot to match the DSI TL */
+	dispc_htot = div64_u64((u64)dsi_htot * dispc_pck, byteclk);
+
+	/* verify that the DSI and DISPC TLs are the same */
+	if ((u64)dsi_htot * dispc_pck != (u64)dispc_htot * byteclk)
+		return false;
+
+	dispc_hbl = dispc_htot - xres;
+
+	/* setup DSI videomode */
+
+	dsi_vm = &ctx->dsi_vm;
+	memset(dsi_vm, 0, sizeof(*dsi_vm));
+
+	dsi_vm->hsclk = hsclk;
+
+	dsi_vm->ndl = ndl;
+	dsi_vm->bitspp = bitspp;
+
+	if (cfg->trans_mode != OMAP_DSS_DSI_PULSE_MODE) {
+		hsa = 0;
+	} else if (ndl == 3 && req_vm->hsw == 0) {
+		hsa = 0;
+	} else {
+		hsa = div64_u64((u64)req_vm->hsw * byteclk, req_pck_nom);
+		hsa = max(hsa - hse, 1);
+	}
+
+	hbp = div64_u64((u64)req_vm->hbp * byteclk, req_pck_nom);
+	hbp = max(hbp, 1);
+
+	hfp = dsi_hbl - (hss + hsa + hse + hbp);
+	if (hfp < 1) {
+		int t;
+		/* we need to take cycles from hbp */
+
+		t = 1 - hfp;
+		hbp = max(hbp - t, 1);
+		hfp = dsi_hbl - (hss + hsa + hse + hbp);
+
+		if (hfp < 1 && hsa > 0) {
+			/* we need to take cycles from hsa */
+			t = 1 - hfp;
+			hsa = max(hsa - t, 1);
+			hfp = dsi_hbl - (hss + hsa + hse + hbp);
+		}
+	}
+
+	if (hfp < 1)
+		return false;
+
+	dsi_vm->hss = hss;
+	dsi_vm->hsa = hsa;
+	dsi_vm->hse = hse;
+	dsi_vm->hbp = hbp;
+	dsi_vm->hact = xres;
+	dsi_vm->hfp = hfp;
+
+	dsi_vm->vsa = req_vm->vsw;
+	dsi_vm->vbp = req_vm->vbp;
+	dsi_vm->vact = req_vm->y_res;
+	dsi_vm->vfp = req_vm->vfp;
+
+	dsi_vm->trans_mode = cfg->trans_mode;
+
+	dsi_vm->blanking_mode = 0;
+	dsi_vm->hsa_blanking_mode = 1;
+	dsi_vm->hfp_blanking_mode = 1;
+	dsi_vm->hbp_blanking_mode = 1;
+
+	dsi_vm->ddr_clk_always_on = cfg->ddr_clk_always_on;
+	dsi_vm->window_sync = 4;
+
+	/* setup DISPC videomode */
+
+	dispc_vm = &ctx->dispc_vm;
+	*dispc_vm = *req_vm;
+	dispc_vm->pixel_clock = dispc_pck / 1000;
+
+	if (cfg->trans_mode == OMAP_DSS_DSI_PULSE_MODE) {
+		hsa = div64_u64((u64)req_vm->hsw * dispc_pck,
+				req_pck_nom);
+		hsa = max(hsa, 1);
+	} else {
+		hsa = 1;
+	}
+
+	hbp = div64_u64((u64)req_vm->hbp * dispc_pck, req_pck_nom);
+	hbp = max(hbp, 1);
+
+	hfp = dispc_hbl - hsa - hbp;
+	if (hfp < 1) {
+		int t;
+		/* we need to take cycles from hbp */
+
+		t = 1 - hfp;
+		hbp = max(hbp - t, 1);
+		hfp = dispc_hbl - hsa - hbp;
+
+		if (hfp < 1) {
+			/* we need to take cycles from hsa */
+			t = 1 - hfp;
+			hsa = max(hsa - t, 1);
+			hfp = dispc_hbl - hsa - hbp;
+		}
+	}
+
+	if (hfp < 1)
+		return false;
+
+	dispc_vm->hfp = hfp;
+	dispc_vm->hsw = hsa;
+	dispc_vm->hbp = hbp;
+
+	return true;
+}
+
+
+static bool dsi_vm_calc_dispc_cb(int lckd, int pckd, unsigned long lck,
+		unsigned long pck, void *data)
+{
+	struct dsi_clk_calc_ctx *ctx = data;
+
+	ctx->dispc_cinfo.lck_div = lckd;
+	ctx->dispc_cinfo.pck_div = pckd;
+	ctx->dispc_cinfo.lck = lck;
+	ctx->dispc_cinfo.pck = pck;
+
+	if (dsi_vm_calc_blanking(ctx) == false)
+		return false;
+
+#ifdef PRINT_VERBOSE_VM_TIMINGS
+	print_dispc_vm("dispc", &ctx->dispc_vm);
+	print_dsi_vm("dsi  ", &ctx->dsi_vm);
+	print_dispc_vm("req  ", ctx->config->timings);
+	print_dsi_dispc_vm("act  ", &ctx->dsi_vm);
+#endif
+
+	return true;
+}
+
+static bool dsi_vm_calc_hsdiv_cb(int regm_dispc, unsigned long dispc,
+		void *data)
+{
+	struct dsi_clk_calc_ctx *ctx = data;
+	unsigned long pck_max;
+
+	ctx->dsi_cinfo.regm_dispc = regm_dispc;
+	ctx->dsi_cinfo.dsi_pll_hsdiv_dispc_clk = dispc;
+
+	/*
+	 * In burst mode we can let the dispc pck be arbitrarily high, but it
+	 * limits our scaling abilities. So for now, don't aim too high.
+	 */
+
+	if (ctx->config->trans_mode == OMAP_DSS_DSI_BURST_MODE)
+		pck_max = ctx->req_pck_max + 10000000;
+	else
+		pck_max = ctx->req_pck_max;
+
+	return dispc_div_calc(dispc, ctx->req_pck_min, pck_max,
+			dsi_vm_calc_dispc_cb, ctx);
+}
+
+static bool dsi_vm_calc_pll_cb(int regn, int regm, unsigned long fint,
+		unsigned long pll, void *data)
+{
+	struct dsi_clk_calc_ctx *ctx = data;
+
+	ctx->dsi_cinfo.regn = regn;
+	ctx->dsi_cinfo.regm = regm;
+	ctx->dsi_cinfo.fint = fint;
+	ctx->dsi_cinfo.clkin4ddr = pll;
+
+	return dsi_hsdiv_calc(ctx->dsidev, pll, ctx->req_pck_min,
+			dsi_vm_calc_hsdiv_cb, ctx);
+}
+
+static bool dsi_vm_calc(struct dsi_data *dsi,
+		const struct omap_dss_dsi_config *cfg,
+		struct dsi_clk_calc_ctx *ctx)
+{
+	const struct omap_video_timings *t = cfg->timings;
+	unsigned long clkin;
+	unsigned long pll_min;
+	unsigned long pll_max;
+	int ndl = dsi->num_lanes_used - 1;
+	int bitspp = dsi_get_pixel_size(cfg->pixel_format);
+	unsigned long byteclk_min;
+
+	clkin = clk_get_rate(dsi->sys_clk);
+
+	memset(ctx, 0, sizeof(*ctx));
+	ctx->dsidev = dsi->pdev;
+	ctx->config = cfg;
+
+	ctx->dsi_cinfo.clkin = clkin;
+
+	/* these limits should come from the panel driver */
+	ctx->req_pck_min = t->pixel_clock * 1000 - 1000;
+	ctx->req_pck_nom = t->pixel_clock * 1000;
+	ctx->req_pck_max = t->pixel_clock * 1000 + 1000;
+
+	byteclk_min = div64_u64((u64)ctx->req_pck_min * bitspp, ndl * 8);
+	pll_min = max(cfg->hs_clk_min * 4, byteclk_min * 4 * 4);
+
+	if (cfg->trans_mode == OMAP_DSS_DSI_BURST_MODE) {
+		pll_max = cfg->hs_clk_max * 4;
+	} else {
+		unsigned long byteclk_max;
+		byteclk_max = div64_u64((u64)ctx->req_pck_max * bitspp,
+				ndl * 8);
+
+		pll_max = byteclk_max * 4 * 4;
+	}
+
+	return dsi_pll_calc(dsi->pdev, clkin,
+			pll_min, pll_max,
+			dsi_vm_calc_pll_cb, ctx);
+}
+
 int omapdss_dsi_set_config(struct omap_dss_device *dssdev,
 		const struct omap_dss_dsi_config *config)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+	struct dsi_clk_calc_ctx ctx;
+	bool ok;
+	int r;
 
 	mutex_lock(&dsi->lock);
 
-	dsi->timings = *config->timings;
-	dsi->vm_timings = *config->vm_timings;
 	dsi->pix_fmt = config->pixel_format;
 	dsi->mode = config->mode;
 
-	dsi_set_clocks(dssdev, config->hs_clk, config->lp_clk);
+	if (config->mode == OMAP_DSS_DSI_VIDEO_MODE)
+		ok = dsi_vm_calc(dsi, config, &ctx);
+	else
+		ok = dsi_cm_calc(dsi, config, &ctx);
+
+	if (!ok) {
+		DSSERR("failed to find suitable DSI clock settings\n");
+		r = -EINVAL;
+		goto err;
+	}
+
+	dsi_pll_calc_dsi_fck(&ctx.dsi_cinfo);
+
+	r = dsi_lp_clock_calc(&ctx.dsi_cinfo, config->lp_clk_min,
+			config->lp_clk_max);
+	if (r) {
+		DSSERR("failed to find suitable DSI LP clock settings\n");
+		goto err;
+	}
+
+	dsi->user_dsi_cinfo = ctx.dsi_cinfo;
+	dsi->user_dispc_cinfo = ctx.dispc_cinfo;
+
+	dsi->timings = ctx.dispc_vm;
+	dsi->vm_timings = ctx.dsi_vm;
 
 	mutex_unlock(&dsi->lock);
 
 	return 0;
+err:
+	mutex_unlock(&dsi->lock);
+
+	return r;
 }
 EXPORT_SYMBOL(omapdss_dsi_set_config);
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 7f774c5f8b6b..8821d933d9fd 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -267,9 +267,21 @@ enum omap_dss_dsi_trans_mode {
 };
 
 struct omap_dss_dsi_videomode_timings {
+	unsigned long hsclk;
+
+	unsigned ndl;
+	unsigned bitspp;
+
+	/* pixels */
+	u16 hact;
+	/* lines */
+	u16 vact;
+
 	/* DSI video mode blanking data */
 	/* Unit: byte clock cycles */
+	u16 hss;
 	u16 hsa;
+	u16 hse;
 	u16 hfp;
 	u16 hbp;
 	/* Unit: line clocks */
@@ -293,10 +305,12 @@ struct omap_dss_dsi_config {
 	enum omap_dss_dsi_mode mode;
 	enum omap_dss_dsi_pixel_format pixel_format;
 	const struct omap_video_timings *timings;
-	const struct omap_dss_dsi_videomode_timings *vm_timings;
 
-	unsigned long hs_clk;
-	unsigned long lp_clk;
+	unsigned long hs_clk_min, hs_clk_max;
+	unsigned long lp_clk_min, lp_clk_max;
+
+	bool ddr_clk_always_on;
+	enum omap_dss_dsi_trans_mode trans_mode;
 };
 
 void dsi_bus_lock(struct omap_dss_device *dssdev);
-- 
cgit v1.2.3-55-g7522


From 77d3595b29e2289cb6f9e4cece5fca1335554d56 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Wed, 6 Mar 2013 17:17:26 +0200
Subject: OMAPDSS: remove dsi videomode from dssdev

DSI videomode is no longer needed in the omap_dss_device, so remove it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/video/omapdss.h | 1 -
 1 file changed, 1 deletion(-)

(limited to 'include/video')

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 8821d933d9fd..62ca9a77c1d6 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -632,7 +632,6 @@ struct omap_dss_device {
 
 		enum omap_dss_dsi_pixel_format dsi_pix_fmt;
 		enum omap_dss_dsi_mode dsi_mode;
-		struct omap_dss_dsi_videomode_timings dsi_vm_timings;
 	} panel;
 
 	struct {
-- 
cgit v1.2.3-55-g7522