OMAP: DSS2: Add new registers for NV12 support

Add new registers specific to UV color component that are introduced in OMAP4.
Add simple helper functions to configure the newly added registers.
These new registers are mainly:
- UV base address registers used specifically for NV12 color-format
- FIR registers used for UV-color-component scaling on OMAP4
- Accumulator registers used for UV-color-component scaling
Add these new registers to save/restore and DUMPREG functions.
Also add two new features for OMAP4:
- FEAT_HANDLE_UV_SEPARATE - this is used on OMAP4 as UV color-component requires
  separate handling.
- FEAT_ATTR2 - this is used on OMAP4 to configure new ATTRIBUTES2 register.

Signed-off-by: Amber Jain <amber@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 197 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index d16eb70bf5b5..53c321c13827 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -217,6 +217,25 @@ void dispc_save_context(void)
 	for (i = 0; i < 8; i++)
 		SR(OVL_FIR_COEF_V(OMAP_DSS_VIDEO1, i));
 
+	if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
+		SR(OVL_BA0_UV(OMAP_DSS_VIDEO1));
+		SR(OVL_BA1_UV(OMAP_DSS_VIDEO1));
+		SR(OVL_FIR2(OMAP_DSS_VIDEO1));
+		SR(OVL_ACCU2_0(OMAP_DSS_VIDEO1));
+		SR(OVL_ACCU2_1(OMAP_DSS_VIDEO1));
+
+		for (i = 0; i < 8; i++)
+			SR(OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, i));
+
+		for (i = 0; i < 8; i++)
+			SR(OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, i));
+
+		for (i = 0; i < 8; i++)
+			SR(OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, i));
+	}
+	if (dss_has_feature(FEAT_ATTR2))
+		SR(OVL_ATTRIBUTES2(OMAP_DSS_VIDEO1));
+
 	SR(OVL_PRELOAD(OMAP_DSS_VIDEO1));
 
 	/* VID2 */
@@ -245,6 +264,25 @@ void dispc_save_context(void)
 	for (i = 0; i < 8; i++)
 		SR(OVL_FIR_COEF_V(OMAP_DSS_VIDEO2, i));
 
+	if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
+		SR(OVL_BA0_UV(OMAP_DSS_VIDEO2));
+		SR(OVL_BA1_UV(OMAP_DSS_VIDEO2));
+		SR(OVL_FIR2(OMAP_DSS_VIDEO2));
+		SR(OVL_ACCU2_0(OMAP_DSS_VIDEO2));
+		SR(OVL_ACCU2_1(OMAP_DSS_VIDEO2));
+
+		for (i = 0; i < 8; i++)
+			SR(OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, i));
+
+		for (i = 0; i < 8; i++)
+			SR(OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, i));
+
+		for (i = 0; i < 8; i++)
+			SR(OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, i));
+	}
+	if (dss_has_feature(FEAT_ATTR2))
+		SR(OVL_ATTRIBUTES2(OMAP_DSS_VIDEO2));
+
 	SR(OVL_PRELOAD(OMAP_DSS_VIDEO2));
 
 	if (dss_has_feature(FEAT_CORE_CLK_DIV))
@@ -338,6 +376,25 @@ void dispc_restore_context(void)
 	for (i = 0; i < 8; i++)
 		RR(OVL_FIR_COEF_V(OMAP_DSS_VIDEO1, i));
 
+	if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
+		RR(OVL_BA0_UV(OMAP_DSS_VIDEO1));
+		RR(OVL_BA1_UV(OMAP_DSS_VIDEO1));
+		RR(OVL_FIR2(OMAP_DSS_VIDEO1));
+		RR(OVL_ACCU2_0(OMAP_DSS_VIDEO1));
+		RR(OVL_ACCU2_1(OMAP_DSS_VIDEO1));
+
+		for (i = 0; i < 8; i++)
+			RR(OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, i));
+
+		for (i = 0; i < 8; i++)
+			RR(OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, i));
+
+		for (i = 0; i < 8; i++)
+			RR(OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, i));
+	}
+	if (dss_has_feature(FEAT_ATTR2))
+		RR(OVL_ATTRIBUTES2(OMAP_DSS_VIDEO1));
+
 	RR(OVL_PRELOAD(OMAP_DSS_VIDEO1));
 
 	/* VID2 */
@@ -366,6 +423,25 @@ void dispc_restore_context(void)
 	for (i = 0; i < 8; i++)
 		RR(OVL_FIR_COEF_V(OMAP_DSS_VIDEO2, i));
 
+	if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
+		RR(OVL_BA0_UV(OMAP_DSS_VIDEO2));
+		RR(OVL_BA1_UV(OMAP_DSS_VIDEO2));
+		RR(OVL_FIR2(OMAP_DSS_VIDEO2));
+		RR(OVL_ACCU2_0(OMAP_DSS_VIDEO2));
+		RR(OVL_ACCU2_1(OMAP_DSS_VIDEO2));
+
+		for (i = 0; i < 8; i++)
+			RR(OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, i));
+
+		for (i = 0; i < 8; i++)
+			RR(OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, i));
+
+		for (i = 0; i < 8; i++)
+			RR(OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, i));
+	}
+	if (dss_has_feature(FEAT_ATTR2))
+		RR(OVL_ATTRIBUTES2(OMAP_DSS_VIDEO2));
+
 	RR(OVL_PRELOAD(OMAP_DSS_VIDEO2));
 
 	if (dss_has_feature(FEAT_CORE_CLK_DIV))
@@ -476,6 +552,27 @@ static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value)
 	dispc_write_reg(DISPC_OVL_FIR_COEF_V(plane, reg), value);
 }
 
+static void _dispc_write_firh2_reg(enum omap_plane plane, int reg, u32 value)
+{
+	BUG_ON(plane == OMAP_DSS_GFX);
+
+	dispc_write_reg(DISPC_OVL_FIR_COEF_H2(plane, reg), value);
+}
+
+static void _dispc_write_firhv2_reg(enum omap_plane plane, int reg, u32 value)
+{
+	BUG_ON(plane == OMAP_DSS_GFX);
+
+	dispc_write_reg(DISPC_OVL_FIR_COEF_HV2(plane, reg), value);
+}
+
+static void _dispc_write_firv2_reg(enum omap_plane plane, int reg, u32 value)
+{
+	BUG_ON(plane == OMAP_DSS_GFX);
+
+	dispc_write_reg(DISPC_OVL_FIR_COEF_V2(plane, reg), value);
+}
+
 static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
 		int vscaleup, int five_taps)
 {
@@ -645,6 +742,16 @@ static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr)
 	dispc_write_reg(DISPC_OVL_BA1(plane), paddr);
 }
 
+static void _dispc_set_plane_ba0_uv(enum omap_plane plane, u32 paddr)
+{
+	dispc_write_reg(DISPC_OVL_BA0_UV(plane), paddr);
+}
+
+static void _dispc_set_plane_ba1_uv(enum omap_plane plane, u32 paddr)
+{
+	dispc_write_reg(DISPC_OVL_BA1_UV(plane), paddr);
+}
+
 static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y)
 {
 	u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0);
@@ -1025,6 +1132,21 @@ static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu)
 	dispc_write_reg(DISPC_OVL_ACCU1(plane), val);
 }
 
+static void _dispc_set_vid_accu2_0(enum omap_plane plane, int haccu, int vaccu)
+{
+	u32 val;
+
+	val = FLD_VAL(vaccu, 26, 16) | FLD_VAL(haccu, 10, 0);
+	dispc_write_reg(DISPC_OVL_ACCU2_0(plane), val);
+}
+
+static void _dispc_set_vid_accu2_1(enum omap_plane plane, int haccu, int vaccu)
+{
+	u32 val;
+
+	val = FLD_VAL(vaccu, 26, 16) | FLD_VAL(haccu, 10, 0);
+	dispc_write_reg(DISPC_OVL_ACCU2_1(plane), val);
+}
 
 static void _dispc_set_scaling(enum omap_plane plane,
 		u16 orig_width, u16 orig_height,
@@ -2496,6 +2618,44 @@ void dispc_dump_regs(struct seq_file *s)
 	DUMPREG(DISPC_OVL_FIR_COEF_V(OMAP_DSS_VIDEO1, 6));
 	DUMPREG(DISPC_OVL_FIR_COEF_V(OMAP_DSS_VIDEO1, 7));
 
+	if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
+		DUMPREG(DISPC_OVL_BA0_UV(OMAP_DSS_VIDEO1));
+		DUMPREG(DISPC_OVL_BA1_UV(OMAP_DSS_VIDEO1));
+		DUMPREG(DISPC_OVL_FIR2(OMAP_DSS_VIDEO1));
+		DUMPREG(DISPC_OVL_ACCU2_0(OMAP_DSS_VIDEO1));
+		DUMPREG(DISPC_OVL_ACCU2_1(OMAP_DSS_VIDEO1));
+
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, 0));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, 1));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, 2));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, 3));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, 4));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, 5));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, 6));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO1, 7));
+
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, 0));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, 1));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, 2));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, 3));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, 4));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, 5));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, 6));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO1, 7));
+
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, 0));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, 1));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, 2));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, 3));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, 4));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, 5));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, 6));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO1, 7));
+	}
+	if (dss_has_feature(FEAT_ATTR2))
+		DUMPREG(DISPC_OVL_ATTRIBUTES2(OMAP_DSS_VIDEO1));
+
+
 	DUMPREG(DISPC_OVL_FIR_COEF_H(OMAP_DSS_VIDEO2, 0));
 	DUMPREG(DISPC_OVL_FIR_COEF_H(OMAP_DSS_VIDEO2, 1));
 	DUMPREG(DISPC_OVL_FIR_COEF_H(OMAP_DSS_VIDEO2, 2));
@@ -2526,6 +2686,43 @@ void dispc_dump_regs(struct seq_file *s)
 	DUMPREG(DISPC_OVL_FIR_COEF_V(OMAP_DSS_VIDEO2, 6));
 	DUMPREG(DISPC_OVL_FIR_COEF_V(OMAP_DSS_VIDEO2, 7));
 
+	if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
+		DUMPREG(DISPC_OVL_BA0_UV(OMAP_DSS_VIDEO2));
+		DUMPREG(DISPC_OVL_BA1_UV(OMAP_DSS_VIDEO2));
+		DUMPREG(DISPC_OVL_FIR2(OMAP_DSS_VIDEO2));
+		DUMPREG(DISPC_OVL_ACCU2_0(OMAP_DSS_VIDEO2));
+		DUMPREG(DISPC_OVL_ACCU2_1(OMAP_DSS_VIDEO2));
+
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, 0));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, 1));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, 2));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, 3));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, 4));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, 5));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, 6));
+		DUMPREG(DISPC_OVL_FIR_COEF_H2(OMAP_DSS_VIDEO2, 7));
+
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, 0));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, 1));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, 2));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, 3));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, 4));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, 5));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, 6));
+		DUMPREG(DISPC_OVL_FIR_COEF_HV2(OMAP_DSS_VIDEO2, 7));
+
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, 0));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, 1));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, 2));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, 3));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, 4));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, 5));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, 6));
+		DUMPREG(DISPC_OVL_FIR_COEF_V2(OMAP_DSS_VIDEO2, 7));
+	}
+	if (dss_has_feature(FEAT_ATTR2))
+		DUMPREG(DISPC_OVL_ATTRIBUTES2(OMAP_DSS_VIDEO2));
+
 	DUMPREG(DISPC_OVL_PRELOAD(OMAP_DSS_VIDEO1));
 	DUMPREG(DISPC_OVL_PRELOAD(OMAP_DSS_VIDEO2));