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authorPhil Edworthy <phil.edworthy@renesas.com>2009-09-15 12:00:30 +0000
committerPaul Mundt <lethal@linux-sh.org>2009-09-15 21:08:22 +0900
commita6f15ade97989d414e9bf33874c9d5d1f39808ec (patch)
tree6738402bca402004d55b913f56c2671913756e83
parent9dd38819c2257375ea05bcb92b1f607a1d523c84 (diff)
video: sh_mobile_lcdcfb: use both register sets for display panning
Switch to using both register sets - side A and side B for display panning. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
-rw-r--r--arch/sh/boards/board-ap325rxa.c2
-rw-r--r--arch/sh/boards/mach-ecovec24/setup.c2
-rw-r--r--arch/sh/boards/mach-kfr2r09/setup.c2
-rw-r--r--arch/sh/boards/mach-migor/setup.c2
-rw-r--r--arch/sh/boards/mach-se/7724/setup.c2
-rw-r--r--drivers/video/sh_mobile_lcdcfb.c47
6 files changed, 49 insertions, 8 deletions
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index bcf1f40bcc6..327d47c25a5 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -211,7 +211,7 @@ static struct resource lcdc_resources[] = {
[0] = {
.name = "LCDC",
.start = 0xfe940000, /* P4-only space */
- .end = 0xfe941fff,
+ .end = 0xfe942fff,
.flags = IORESOURCE_MEM,
},
[1] = {
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 7da274ae744..bbe601d4209 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -239,7 +239,7 @@ static struct resource lcdc_resources[] = {
[0] = {
.name = "LCDC",
.start = 0xfe940000,
- .end = 0xfe941fff,
+ .end = 0xfe942fff,
.flags = IORESOURCE_MEM,
},
[1] = {
diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c
index 7155be0d115..c08d33fe210 100644
--- a/arch/sh/boards/mach-kfr2r09/setup.c
+++ b/arch/sh/boards/mach-kfr2r09/setup.c
@@ -162,7 +162,7 @@ static struct resource kfr2r09_sh_lcdc_resources[] = {
[0] = {
.name = "LCDC",
.start = 0xfe940000, /* P4-only space */
- .end = 0xfe941fff,
+ .end = 0xfe942fff,
.flags = IORESOURCE_MEM,
},
[1] = {
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index be8f0d94f6f..6ed1fd32369 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -279,7 +279,7 @@ static struct resource migor_lcdc_resources[] = {
[0] = {
.name = "LCDC",
.start = 0xfe940000, /* P4-only space */
- .end = 0xfe941fff,
+ .end = 0xfe942fff,
.flags = IORESOURCE_MEM,
},
[1] = {
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 1876c8306c8..00973e0f8c6 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -166,7 +166,7 @@ static struct resource lcdc_resources[] = {
[0] = {
.name = "LCDC",
.start = 0xfe940000,
- .end = 0xfe941fff,
+ .end = 0xfe942fff,
.flags = IORESOURCE_MEM,
},
[1] = {
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 7f30cb33a20..3ad5157f989 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -23,6 +23,8 @@
#include <asm/atomic.h>
#define PALETTE_NR 16
+#define SIDE_B_OFFSET 0x1000
+#define MIRROR_OFFSET 0x2000
/* shared registers */
#define _LDDCKR 0x410
@@ -100,6 +102,10 @@ static unsigned long lcdc_offs_sublcd[NR_CH_REGS] = {
#define LDINTR_FS 0x00000004
#define LDINTR_VSS 0x00000002
#define LDINTR_VES 0x00000001
+#define LDRCNTR_SRS 0x00020000
+#define LDRCNTR_SRC 0x00010000
+#define LDRCNTR_MRS 0x00000002
+#define LDRCNTR_MRC 0x00000001
struct sh_mobile_lcdc_priv;
struct sh_mobile_lcdc_chan {
@@ -132,10 +138,39 @@ struct sh_mobile_lcdc_priv {
int started;
};
+static bool banked(int reg_nr)
+{
+ switch (reg_nr) {
+ case LDMT1R:
+ case LDMT2R:
+ case LDMT3R:
+ case LDDFR:
+ case LDSM1R:
+ case LDSA1R:
+ case LDMLSR:
+ case LDHCNR:
+ case LDHSYNR:
+ case LDVLNR:
+ case LDVSYNR:
+ return true;
+ }
+ return false;
+}
+
static void lcdc_write_chan(struct sh_mobile_lcdc_chan *chan,
int reg_nr, unsigned long data)
{
iowrite32(data, chan->lcdc->base + chan->reg_offs[reg_nr]);
+ if (banked(reg_nr))
+ iowrite32(data, chan->lcdc->base + chan->reg_offs[reg_nr] +
+ SIDE_B_OFFSET);
+}
+
+static void lcdc_write_chan_mirror(struct sh_mobile_lcdc_chan *chan,
+ int reg_nr, unsigned long data)
+{
+ iowrite32(data, chan->lcdc->base + chan->reg_offs[reg_nr] +
+ MIRROR_OFFSET);
}
static unsigned long lcdc_read_chan(struct sh_mobile_lcdc_chan *chan,
@@ -308,10 +343,16 @@ static irqreturn_t sh_mobile_lcdc_irq(int irq, void *data)
/* VSYNC End */
if (ldintr & LDINTR_VES) {
+ unsigned long ldrcntr = lcdc_read(priv, _LDRCNTR);
/* Set the source address for the next refresh */
- lcdc_write_chan(ch, LDSA1R, ch->dma_handle +
- ch->new_pan_offset);
- lcdc_write(ch->lcdc, _LDRCNTR, 0);
+ lcdc_write_chan_mirror(ch, LDSA1R, ch->dma_handle +
+ ch->new_pan_offset);
+ if (lcdc_chan_is_sublcd(ch))
+ lcdc_write(ch->lcdc, _LDRCNTR,
+ ldrcntr ^ LDRCNTR_SRS);
+ else
+ lcdc_write(ch->lcdc, _LDRCNTR,
+ ldrcntr ^ LDRCNTR_MRS);
ch->pan_offset = ch->new_pan_offset;
}
}