diff options
| author | Julien Jayat <julien.jayat@nxp.com> | 2020-08-11 14:09:32 +0200 |
|---|---|---|
| committer | Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com> | 2021-04-27 10:42:06 +0000 |
| commit | 422e20fe909b5e938747777d75ebada7a6e6dd79 (patch) | |
| tree | 6f17e3eab98bb5ab6c2e8ff3796a127308a52555 /include/drm | |
| parent | fbff4c5cf8d7ae017cb89344d3c02ab2c201d3a4 (diff) | |
MLK-24491: drm: bridge: cdns: Add support of i2c-over-aux
Port the i2c over aux feature from 4.19.35 to the 5.4.x kernel. Add the
the i2c read/write functions. The i2c features in the FW have been introduced in
version 1.0.62.
Signed-off-by: Julien Jayat <julien.jayat@nxp.com>
Signed-off-by: Oliver Brown <oliver.brown@nxp.com>
(cherry picked from commit b6181a1aea9ade244efb2ca001e14adb5cbe23eb)
Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
Diffstat (limited to 'include/drm')
| -rwxr-xr-x | include/drm/bridge/cdns-mhdp.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/drm/bridge/cdns-mhdp.h b/include/drm/bridge/cdns-mhdp.h index 6bfd82a3d9a2..86314543fbca 100755 --- a/include/drm/bridge/cdns-mhdp.h +++ b/include/drm/bridge/cdns-mhdp.h @@ -376,6 +376,11 @@ #define DPTX_FORCE_LANES 0x10 #define DPTX_HPD_STATE 0x11 #define DPTX_ADJUST_LT 0x12 +#define DPTX_I2C_READ 0x15 +#define DPTX_I2C_WRITE 0x16 +#define DPTX_GET_LAST_I2C_STATUS 0x17 + + /* HDMI TX opcode */ #define HDMI_TX_READ 0x00 @@ -734,6 +739,12 @@ u32 cdns_mhdp_get_event(struct cdns_mhdp_device *mhdp); int cdns_mhdp_dpcd_write(struct cdns_mhdp_device *mhdp, u32 addr, u8 value); int cdns_mhdp_dpcd_read(struct cdns_mhdp_device *mhdp, u32 addr, u8 *data, u16 len); + +int cdns_mhdp_get_last_i2c_status(struct cdns_mhdp_device *mhdp, u8 *resp); +int cdns_mhdp_i2c_write(struct cdns_mhdp_device *mhdp, u8 addr, + u8 *value, u8 mot, u16 len, u16 *respLength); +int cdns_mhdp_i2c_read(struct cdns_mhdp_device *mhdp, u8 addr, u8 *data, + u16 len, u8 mot, u16 *respLength); int cdns_mhdp_get_edid_block(void *mhdp, u8 *edid, unsigned int block, size_t length); int cdns_mhdp_train_link(struct cdns_mhdp_device *mhdp); |