Hi all,
Today's linux-next merge of the drm-misc tree got a conflict in
drivers/gpu/drm/drm_edid.c between commit 40d9b043a89e ("drm/connector:
store tile information from displayid (v3)") from the drm tree and
commit d6885d659037 ("drm/edid: move drm_edid_is_zero to top, make edid
argument const") and c465bbc87ce3 ("drm/edid: new
drm_edid_block_checksum helper function V3") from the drm-misc tree.
I fixed it up (see below) and can carry the fix as necessary (no action
is required).
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
diff --cc drivers/gpu/drm/drm_edid.c
index 72fd8820e186,21cc45cf3367..000000000000
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@@ -1015,8 -1014,24 +1015,27 @@@ module_param_named(edid_fixup, edid_fix
MODULE_PARM_DESC(edid_fixup,
"Minimum number of valid EDID header bytes (0-8, default 6)");
+static void drm_get_displayid(struct drm_connector *connector,
+ struct edid *edid);
++
+ static int drm_edid_block_checksum(const u8 *raw_edid)
+ {
+ int i;
+ u8 csum = 0;
+ for (i = 0; i < EDID_LENGTH; i++)
+ csum += raw_edid[i];
+
+ return csum;
+ }
+
+ static bool drm_edid_is_zero(const u8 *in_edid, int length)
+ {
+ if (memchr_inv(in_edid, 0, length))
+ return false;
+
+ return true;
+ }
+
/**
* drm_edid_block_valid - Sanity check the EDID block (base or extension)
* @raw_edid: pointer to raw EDID block
@@@ -1179,34 -1196,8 +1200,26 @@@ drm_do_probe_ddc_edid(void *data, u8 *b
return ret == xfers ? 0 : -1;
}
- static bool drm_edid_is_zero(u8 *in_edid, int length)
- {
- if (memchr_inv(in_edid, 0, length))
- return false;
-
- return true;
- }
-
-static u8 *
-drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
+/**
+ * drm_do_get_edid - get EDID data using a custom EDID block read function
+ * @connector: connector we're probing
+ * @get_edid_block: EDID block read function
+ * @data: private data passed to the block read function
+ *
+ * When the I2C adapter connected to the DDC bus is hidden behind a device that
+ * exposes a different interface to read EDID blocks this function can be used
+ * to get EDID data using a custom block read function.
+ *
+ * As in the general case the DDC bus is accessible by the kernel at the I2C
+ * level, drivers must make all reasonable efforts to expose it as an I2C
+ * adapter and use drm_get_edid() instead of abusing this function.
+ *
+ * Return: Pointer to valid EDID or NULL if we couldn't find any.
+ */
+struct edid *drm_do_get_edid(struct drm_connector *connector,
+ int (*get_edid_block)(void *data, u8 *buf, unsigned int block,
+ size_t len),
+ void *data)
{
int i, j = 0, valid_extensions = 0;
u8 *block, *new;
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