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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-12 18:09:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-12 18:09:18 -0700
commit6b702462cbe5b6f372966a53f4465d745d86b65c (patch)
tree19a8d090b284bb804e8a2ffa38fa51b58118db6a /drivers/gpu/drm/drm_edid.c
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 (diff)
parentdrm: include kernel list header file in hashtab header (diff)
downloadlinux-dev-6b702462cbe5b6f372966a53f4465d745d86b65c.tar.xz
linux-dev-6b702462cbe5b6f372966a53f4465d745d86b65c.zip
Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (50 commits) drm: include kernel list header file in hashtab header drm: Export hash table functionality. drm: Split out the mm declarations in a separate header. Add atomic operations. drm/radeon: add support for RV790. drm/radeon: add rv740 drm support. drm_calloc_large: check right size, check integer overflow, use GFP_ZERO drm: Eliminate magic I2C frobbing when reading EDID drm/i915: duplicate desired mode for use by fbcon. drm/via: vfree() no need checking before calling it drm: Replace DRM_DEBUG with DRM_DEBUG_DRIVER in i915 driver drm: Replace DRM_DEBUG with DRM_DEBUG_MODE in drm_mode drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in intel_sdvo drm/i915: replace DRM_DEBUG with DRM_DEBUG_KMS in intel_lvds drm: add separate drm debugging levels radeon: remove _DRM_DRIVER from the preadded sarea map drm: don't associate _DRM_DRIVER maps with a master drm: simplify kcalloc() call to kzalloc(). intelfb: fix spelling of "CLOCK" drm: fix LOCK_TEST_WITH_RETURN macro drm/i915: Hook connector to encoder during load detection (fixes tv/vga detect) ...
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
-rw-r--r--drivers/gpu/drm/drm_edid.c74
1 files changed, 1 insertions, 73 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 6f6b26479d82..801a0d0e0810 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -589,85 +589,13 @@ int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
}
EXPORT_SYMBOL(drm_do_probe_ddc_edid);
-/**
- * Get EDID information.
- *
- * \param adapter : i2c device adaptor.
- * \param buf : EDID data buffer to be filled
- * \param len : EDID data buffer length
- * \return 0 on success or -1 on failure.
- *
- * Initialize DDC, then fetch EDID information
- * by calling drm_do_probe_ddc_edid function.
- */
-static int drm_ddc_read(struct i2c_adapter *adapter,
- unsigned char *buf, int len)
-{
- struct i2c_algo_bit_data *algo_data = adapter->algo_data;
- int i, j;
- int ret = -1;
-
- algo_data->setscl(algo_data->data, 1);
-
- for (i = 0; i < 1; i++) {
- /* For some old monitors we need the
- * following process to initialize/stop DDC
- */
- algo_data->setsda(algo_data->data, 1);
- msleep(13);
-
- algo_data->setscl(algo_data->data, 1);
- for (j = 0; j < 5; j++) {
- msleep(10);
- if (algo_data->getscl(algo_data->data))
- break;
- }
- if (j == 5)
- continue;
-
- algo_data->setsda(algo_data->data, 0);
- msleep(15);
- algo_data->setscl(algo_data->data, 0);
- msleep(15);
- algo_data->setsda(algo_data->data, 1);
- msleep(15);
-
- /* Do the real work */
- ret = drm_do_probe_ddc_edid(adapter, buf, len);
- algo_data->setsda(algo_data->data, 0);
- algo_data->setscl(algo_data->data, 0);
- msleep(15);
-
- algo_data->setscl(algo_data->data, 1);
- for (j = 0; j < 10; j++) {
- msleep(10);
- if (algo_data->getscl(algo_data->data))
- break;
- }
-
- algo_data->setsda(algo_data->data, 1);
- msleep(15);
- algo_data->setscl(algo_data->data, 0);
- algo_data->setsda(algo_data->data, 0);
- if (ret == 0)
- break;
- }
- /* Release the DDC lines when done or the Apple Cinema HD display
- * will switch off
- */
- algo_data->setsda(algo_data->data, 1);
- algo_data->setscl(algo_data->data, 1);
-
- return ret;
-}
-
static int drm_ddc_read_edid(struct drm_connector *connector,
struct i2c_adapter *adapter,
char *buf, int len)
{
int ret;
- ret = drm_ddc_read(adapter, buf, len);
+ ret = drm_do_probe_ddc_edid(adapter, buf, len);
if (ret != 0) {
dev_info(&connector->dev->pdev->dev, "%s: no EDID data\n",
drm_get_connector_name(connector));