The patch titled
radeonfb: Use generic DDC reading
has been removed from the -mm tree. Its filename is
radeonfb-use-generic-ddc-reading.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: radeonfb: Use generic DDC reading
From: Dennis Munsie <dmunsie@xxxxxxxxxxxx>
Uses the generic ddc read functionality in fbmon.c instead of the previous
functionality.
Signed-off-by: Dennis Munsie <dmunsie@xxxxxxxxxxxx>
Signed-off-by: Antonino Daplas <adaplas@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/video/Kconfig | 1
drivers/video/aty/radeon_i2c.c | 106 -------------------------------
2 files changed, 4 insertions(+), 103 deletions(-)
diff -puN drivers/video/Kconfig~radeonfb-use-generic-ddc-reading drivers/video/Kconfig
--- a/drivers/video/Kconfig~radeonfb-use-generic-ddc-reading
+++ a/drivers/video/Kconfig
@@ -1020,6 +1020,7 @@ config FB_RADEON
depends on FB && PCI
select I2C_ALGOBIT if FB_RADEON_I2C
select I2C if FB_RADEON_I2C
+ select FB_DDC if FB_RADEON_I2C
select FB_MODE_HELPERS
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
diff -puN drivers/video/aty/radeon_i2c.c~radeonfb-use-generic-ddc-reading drivers/video/aty/radeon_i2c.c
--- a/drivers/video/aty/radeon_i2c.c~radeonfb-use-generic-ddc-reading
+++ a/drivers/video/aty/radeon_i2c.c
@@ -16,8 +16,6 @@
#include "radeonfb.h"
#include "../edid.h"
-#define RADEON_DDC 0x50
-
static void radeon_gpio_setscl(void* data, int state)
{
struct radeon_i2c_chan *chan = data;
@@ -138,108 +136,10 @@ void radeon_delete_i2c_busses(struct rad
rinfo->i2c[3].rinfo = NULL;
}
-
-static u8 *radeon_do_probe_i2c_edid(struct radeon_i2c_chan *chan)
+int radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int conn,
+ u8 **out_edid)
{
- u8 start = 0x0;
- struct i2c_msg msgs[] = {
- {
- .addr = RADEON_DDC,
- .len = 1,
- .buf = &start,
- }, {
- .addr = RADEON_DDC,
- .flags = I2C_M_RD,
- .len = EDID_LENGTH,
- },
- };
- u8 *buf;
-
- buf = kmalloc(EDID_LENGTH, GFP_KERNEL);
- if (!buf) {
- dev_warn(&chan->rinfo->pdev->dev, "Out of memory!\n");
- return NULL;
- }
- msgs[1].buf = buf;
-
- if (i2c_transfer(&chan->adapter, msgs, 2) == 2)
- return buf;
- dev_dbg(&chan->rinfo->pdev->dev, "Unable to read EDID block.\n");
- kfree(buf);
- return NULL;
-}
-
-
-int radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int conn, u8 **out_edid)
-{
- u32 reg = rinfo->i2c[conn-1].ddc_reg;
- u8 *edid = NULL;
- int i, j;
-
- OUTREG(reg, INREG(reg) &
- ~(VGA_DDC_DATA_OUTPUT | VGA_DDC_CLK_OUTPUT));
-
- OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN));
- (void)INREG(reg);
-
- for (i = 0; i < 3; i++) {
- /* For some old monitors we need the
- * following process to initialize/stop DDC
- */
- OUTREG(reg, INREG(reg) & ~(VGA_DDC_DATA_OUT_EN));
- (void)INREG(reg);
- msleep(13);
-
- OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN));
- (void)INREG(reg);
- for (j = 0; j < 5; j++) {
- msleep(10);
- if (INREG(reg) & VGA_DDC_CLK_INPUT)
- break;
- }
- if (j == 5)
- continue;
-
- OUTREG(reg, INREG(reg) | VGA_DDC_DATA_OUT_EN);
- (void)INREG(reg);
- msleep(15);
- OUTREG(reg, INREG(reg) | VGA_DDC_CLK_OUT_EN);
- (void)INREG(reg);
- msleep(15);
- OUTREG(reg, INREG(reg) & ~(VGA_DDC_DATA_OUT_EN));
- (void)INREG(reg);
- msleep(15);
-
- /* Do the real work */
- edid = radeon_do_probe_i2c_edid(&rinfo->i2c[conn-1]);
-
- OUTREG(reg, INREG(reg) |
- (VGA_DDC_DATA_OUT_EN | VGA_DDC_CLK_OUT_EN));
- (void)INREG(reg);
- msleep(15);
-
- OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN));
- (void)INREG(reg);
- for (j = 0; j < 10; j++) {
- msleep(10);
- if (INREG(reg) & VGA_DDC_CLK_INPUT)
- break;
- }
-
- OUTREG(reg, INREG(reg) & ~(VGA_DDC_DATA_OUT_EN));
- (void)INREG(reg);
- msleep(15);
- OUTREG(reg, INREG(reg) |
- (VGA_DDC_DATA_OUT_EN | VGA_DDC_CLK_OUT_EN));
- (void)INREG(reg);
- if (edid)
- break;
- }
- /* Release the DDC lines when done or the Apple Cinema HD display
- * will switch off
- */
- OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN | VGA_DDC_DATA_OUT_EN));
- (void)INREG(reg);
+ u8 *edid = fb_ddc_read(&rinfo->i2c[conn-1].adapter);
if (out_edid)
*out_edid = edid;
_
Patches currently in -mm which might be from dmunsie@xxxxxxxxxxxx are
origin.patch
-
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