| author | Archit Taneja <archit@ti.com> | |
| Tue, 30 Apr 2013 12:08:29 +0000 (14:08 +0200) | ||
| committer | Archit Taneja <archit@ti.com> | |
| Thu, 30 May 2013 15:39:18 +0000 (21:09 +0530) | ||
| commit | e74ef2b05f963c6dd9af638a57da6ce0d7349832 | |
| tree | ad8c175c01bd1a0f528ec21c786d7206f5f4c6b5 | tree | snapshot (tar.xz tar.gz zip) |
| parent | 3b7bc6949f9a078bcb828cdfde4ca30baacc3854 | commit | diff |
omapdss: hdmi: Add an i2c adapter node as a possible DT phandle
The hdmi driver supports reading edid either via HDMI IP's ddc in the case
of omap4. We support a bitbanged gpio i2c mode for omap5. For Vayu, the pins
muxed with HDMI IP's ddc are the I2C2 lines, so we provide a mode where we allow
the i2c adapter to be passed as a phandle by DT.
Add a DT node for hdmi similar to that as of omap5-uevm. The difference on Vayu
evm is that it the hdmi ddc lines are the I2C2 line instead of bitbanged gpio
lines. There is a also a PCF level shifter on I2C2 which is used to drive LS_OE
and CT_HPD pins in the TPS level shifter. The HPD gpio is connected directly to
a Vayu GPIO bank.
Signed-off-by: Archit Taneja <archit@ti.com>
The hdmi driver supports reading edid either via HDMI IP's ddc in the case
of omap4. We support a bitbanged gpio i2c mode for omap5. For Vayu, the pins
muxed with HDMI IP's ddc are the I2C2 lines, so we provide a mode where we allow
the i2c adapter to be passed as a phandle by DT.
Add a DT node for hdmi similar to that as of omap5-uevm. The difference on Vayu
evm is that it the hdmi ddc lines are the I2C2 line instead of bitbanged gpio
lines. There is a also a PCF level shifter on I2C2 which is used to drive LS_OE
and CT_HPD pins in the TPS level shifter. The HPD gpio is connected directly to
a Vayu GPIO bank.
Signed-off-by: Archit Taneja <archit@ti.com>
| arch/arm/boot/dts/dra7-evm.dts | diff | blob | history | |
| drivers/video/omap2/dss/hdmi.c | diff | blob | history |