Re: [PATCH v2 03/12] drm/i915: Make I2C terminology more inclusive

Rodrigo Vivi
2024-05-03T19:34:25Z

On Fri, May 03, 2024 at 06:13:24PM +0000, Easwar Hariharan wrote:
> I2C v7, SMBus 3.2, and I3C 1.1.1 specifications have replaced "master/slave"
> with more appropriate terms. Inspired by and following on to Wolfram's
> series to fix drivers/i2c/[1], fix the terminology for users of
> I2C_ALGOBIT bitbanging interface, now that the approved verbiage exists
> in the specification.
>
> Compile tested, no functionality changes intended
>
> [1]: https://lore.kernel.org/all/20240322132619.6389-1-wsa+renesas@sang-engineering.com/
>
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

It looks like the ack is not needed since we are merging this through
drm-intel-next. But I'm planing to merge this only after seeing the
main drivers/i2c accepting the new terminology. So we don't have a
risk of that getting push back and new names there and we having
to rename it once again.

(more below)

> Acked-by: Zhi Wang <zhiwang@kernel.org>
> Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>

Cc: Jani Nikula <jani.nikula@intel.com>

Jani, what bits were you concerned that were not necessarily i2c?
I believe although not necessarily/directly i2c, I believe they
are related and could benefit from the massive single shot renable.
or do you have any better split to suggest here?

(more below)

> ---
> drivers/gpu/drm/i915/display/dvo_ch7017.c | 14 ++++-----
> drivers/gpu/drm/i915/display/dvo_ch7xxx.c | 18 +++++------
> drivers/gpu/drm/i915/display/dvo_ivch.c | 16 +++++-----
> drivers/gpu/drm/i915/display/dvo_ns2501.c | 18 +++++------
> drivers/gpu/drm/i915/display/dvo_sil164.c | 18 +++++------
> drivers/gpu/drm/i915/display/dvo_tfp410.c | 18 +++++------
> drivers/gpu/drm/i915/display/intel_bios.c | 22 +++++++-------
> drivers/gpu/drm/i915/display/intel_ddi.c | 2 +-
> .../gpu/drm/i915/display/intel_display_core.h | 2 +-
> drivers/gpu/drm/i915/display/intel_dsi.h | 2 +-
> drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 20 ++++++-------
> drivers/gpu/drm/i915/display/intel_dvo.c | 14 ++++-----
> drivers/gpu/drm/i915/display/intel_dvo_dev.h | 2 +-
> drivers/gpu/drm/i915/display/intel_gmbus.c | 4 +--
> drivers/gpu/drm/i915/display/intel_sdvo.c | 30 +++++++++----------
> drivers/gpu/drm/i915/display/intel_vbt_defs.h | 4 +--
> drivers/gpu/drm/i915/gvt/edid.c | 28 ++++++++---------
> drivers/gpu/drm/i915/gvt/edid.h | 4 +--
> drivers/gpu/drm/i915/gvt/opregion.c | 2 +-
> 19 files changed, 119 insertions(+), 119 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/dvo_ch7017.c b/drivers/gpu/drm/i915/display/dvo_ch7017.c
> index d0c3880d7f80..493e730c685b 100644
> --- a/drivers/gpu/drm/i915/display/dvo_ch7017.c
> +++ b/drivers/gpu/drm/i915/display/dvo_ch7017.c
> @@ -170,13 +170,13 @@ static bool ch7017_read(struct intel_dvo_device *dvo, u8 addr, u8 *val)
> {
> struct i2c_msg msgs[] = {
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 1,
> .buf = &addr,
> },
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = I2C_M_RD,
> .len = 1,
> .buf = val,
> @@ -189,7 +189,7 @@ static bool ch7017_write(struct intel_dvo_device *dvo, u8 addr, u8 val)
> {
> u8 buf[2] = { addr, val };
> struct i2c_msg msg = {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 2,
> .buf = buf,
> @@ -197,7 +197,7 @@ static bool ch7017_write(struct intel_dvo_device *dvo, u8 addr, u8 val)
> return i2c_transfer(dvo->i2c_bus, &msg, 1) == 1;
> }
>
> -/** Probes for a CH7017 on the given bus and slave address. */
> +/** Probes for a CH7017 on the given bus and target address. */
> static bool ch7017_init(struct intel_dvo_device *dvo,
> struct i2c_adapter *adapter)
> {
> @@ -227,13 +227,13 @@ static bool ch7017_init(struct intel_dvo_device *dvo,
> break;
> default:
> DRM_DEBUG_KMS("ch701x not detected, got %d: from %s "
> - "slave %d.\n",
> - val, adapter->name, dvo->slave_addr);
> + "target %d.\n",
> + val, adapter->name, dvo->target_addr);
> goto fail;
> }
>
> DRM_DEBUG_KMS("%s detected on %s, addr %d\n",
> - str, adapter->name, dvo->slave_addr);
> + str, adapter->name, dvo->target_addr);
> return true;
>
> fail:
> diff --git a/drivers/gpu/drm/i915/display/dvo_ch7xxx.c b/drivers/gpu/drm/i915/display/dvo_ch7xxx.c
> index 2e8e85da5a40..534b8544e0a4 100644
> --- a/drivers/gpu/drm/i915/display/dvo_ch7xxx.c
> +++ b/drivers/gpu/drm/i915/display/dvo_ch7xxx.c
> @@ -153,13 +153,13 @@ static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)
>
> struct i2c_msg msgs[] = {
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 1,
> .buf = out_buf,
> },
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = I2C_M_RD,
> .len = 1,
> .buf = in_buf,
> @@ -176,7 +176,7 @@ static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)
>
> if (!ch7xxx->quiet) {
> DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
> return false;
> }
> @@ -188,7 +188,7 @@ static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)
> struct i2c_adapter *adapter = dvo->i2c_bus;
> u8 out_buf[2];
> struct i2c_msg msg = {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 2,
> .buf = out_buf,
> @@ -202,7 +202,7 @@ static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)
>
> if (!ch7xxx->quiet) {
> DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
>
> return false;
> @@ -229,8 +229,8 @@ static bool ch7xxx_init(struct intel_dvo_device *dvo,
>
> name = ch7xxx_get_id(vendor);
> if (!name) {
> - DRM_DEBUG_KMS("ch7xxx not detected; got VID 0x%02x from %s slave %d.\n",
> - vendor, adapter->name, dvo->slave_addr);
> + DRM_DEBUG_KMS("ch7xxx not detected; got VID 0x%02x from %s target %d.\n",
> + vendor, adapter->name, dvo->target_addr);
> goto out;
> }
>
> @@ -240,8 +240,8 @@ static bool ch7xxx_init(struct intel_dvo_device *dvo,
>
> devid = ch7xxx_get_did(device);
> if (!devid) {
> - DRM_DEBUG_KMS("ch7xxx not detected; got DID 0x%02x from %s slave %d.\n",
> - device, adapter->name, dvo->slave_addr);
> + DRM_DEBUG_KMS("ch7xxx not detected; got DID 0x%02x from %s target %d.\n",
> + device, adapter->name, dvo->target_addr);
> goto out;
> }
>
> diff --git a/drivers/gpu/drm/i915/display/dvo_ivch.c b/drivers/gpu/drm/i915/display/dvo_ivch.c
> index eef72bb3b767..0d5cce6051b1 100644
> --- a/drivers/gpu/drm/i915/display/dvo_ivch.c
> +++ b/drivers/gpu/drm/i915/display/dvo_ivch.c
> @@ -198,7 +198,7 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, u16 *data)
>
> struct i2c_msg msgs[] = {
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = I2C_M_RD,
> .len = 0,
> },
> @@ -209,7 +209,7 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, u16 *data)
> .buf = out_buf,
> },
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = I2C_M_RD | I2C_M_NOSTART,
> .len = 2,
> .buf = in_buf,
> @@ -226,7 +226,7 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, u16 *data)
> if (!priv->quiet) {
> DRM_DEBUG_KMS("Unable to read register 0x%02x from "
> "%s:%02x.\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
> return false;
> }
> @@ -238,7 +238,7 @@ static bool ivch_write(struct intel_dvo_device *dvo, int addr, u16 data)
> struct i2c_adapter *adapter = dvo->i2c_bus;
> u8 out_buf[3];
> struct i2c_msg msg = {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 3,
> .buf = out_buf,
> @@ -253,13 +253,13 @@ static bool ivch_write(struct intel_dvo_device *dvo, int addr, u16 data)
>
> if (!priv->quiet) {
> DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
>
> return false;
> }
>
> -/* Probes the given bus and slave address for an ivch */
> +/* Probes the given bus and target address for an ivch */
> static bool ivch_init(struct intel_dvo_device *dvo,
> struct i2c_adapter *adapter)
> {
> @@ -283,10 +283,10 @@ static bool ivch_init(struct intel_dvo_device *dvo,
> * very unique, check that the value in the base address field matches
> * the address it's responding on.
> */
> - if ((temp & VR00_BASE_ADDRESS_MASK) != dvo->slave_addr) {
> + if ((temp & VR00_BASE_ADDRESS_MASK) != dvo->target_addr) {
> DRM_DEBUG_KMS("ivch detect failed due to address mismatch "
> "(%d vs %d)\n",
> - (temp & VR00_BASE_ADDRESS_MASK), dvo->slave_addr);
> + (temp & VR00_BASE_ADDRESS_MASK), dvo->target_addr);
> goto out;
> }
>
> diff --git a/drivers/gpu/drm/i915/display/dvo_ns2501.c b/drivers/gpu/drm/i915/display/dvo_ns2501.c
> index 1df212fb000e..43fc0374fc7f 100644
> --- a/drivers/gpu/drm/i915/display/dvo_ns2501.c
> +++ b/drivers/gpu/drm/i915/display/dvo_ns2501.c
> @@ -399,13 +399,13 @@ static bool ns2501_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)
>
> struct i2c_msg msgs[] = {
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 1,
> .buf = out_buf,
> },
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = I2C_M_RD,
> .len = 1,
> .buf = in_buf,
> @@ -423,7 +423,7 @@ static bool ns2501_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)
> if (!ns->quiet) {
> DRM_DEBUG_KMS
> ("Unable to read register 0x%02x from %s:0x%02x.\n", addr,
> - adapter->name, dvo->slave_addr);
> + adapter->name, dvo->target_addr);
> }
>
> return false;
> @@ -442,7 +442,7 @@ static bool ns2501_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)
> u8 out_buf[2];
>
> struct i2c_msg msg = {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 2,
> .buf = out_buf,
> @@ -457,7 +457,7 @@ static bool ns2501_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)
>
> if (!ns->quiet) {
> DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
>
> return false;
> @@ -488,8 +488,8 @@ static bool ns2501_init(struct intel_dvo_device *dvo,
> goto out;
>
> if (ch != (NS2501_VID & 0xff)) {
> - DRM_DEBUG_KMS("ns2501 not detected got %d: from %s Slave %d.\n",
> - ch, adapter->name, dvo->slave_addr);
> + DRM_DEBUG_KMS("ns2501 not detected got %d: from %s Target %d.\n",
> + ch, adapter->name, dvo->target_addr);
> goto out;
> }
>
> @@ -497,8 +497,8 @@ static bool ns2501_init(struct intel_dvo_device *dvo,
> goto out;
>
> if (ch != (NS2501_DID & 0xff)) {
> - DRM_DEBUG_KMS("ns2501 not detected got %d: from %s Slave %d.\n",
> - ch, adapter->name, dvo->slave_addr);
> + DRM_DEBUG_KMS("ns2501 not detected got %d: from %s Target %d.\n",
> + ch, adapter->name, dvo->target_addr);
> goto out;
> }
> ns->quiet = false;
> diff --git a/drivers/gpu/drm/i915/display/dvo_sil164.c b/drivers/gpu/drm/i915/display/dvo_sil164.c
> index 6c461024c8e3..a8dd40c00997 100644
> --- a/drivers/gpu/drm/i915/display/dvo_sil164.c
> +++ b/drivers/gpu/drm/i915/display/dvo_sil164.c
> @@ -79,13 +79,13 @@ static bool sil164_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)
>
> struct i2c_msg msgs[] = {
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 1,
> .buf = out_buf,
> },
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = I2C_M_RD,
> .len = 1,
> .buf = in_buf,
> @@ -102,7 +102,7 @@ static bool sil164_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)
>
> if (!sil->quiet) {
> DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
> return false;
> }
> @@ -113,7 +113,7 @@ static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)
> struct i2c_adapter *adapter = dvo->i2c_bus;
> u8 out_buf[2];
> struct i2c_msg msg = {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 2,
> .buf = out_buf,
> @@ -127,7 +127,7 @@ static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)
>
> if (!sil->quiet) {
> DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
>
> return false;
> @@ -153,8 +153,8 @@ static bool sil164_init(struct intel_dvo_device *dvo,
> goto out;
>
> if (ch != (SIL164_VID & 0xff)) {
> - DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
> - ch, adapter->name, dvo->slave_addr);
> + DRM_DEBUG_KMS("sil164 not detected got %d: from %s Target %d.\n",
> + ch, adapter->name, dvo->target_addr);
> goto out;
> }
>
> @@ -162,8 +162,8 @@ static bool sil164_init(struct intel_dvo_device *dvo,
> goto out;
>
> if (ch != (SIL164_DID & 0xff)) {
> - DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
> - ch, adapter->name, dvo->slave_addr);
> + DRM_DEBUG_KMS("sil164 not detected got %d: from %s Target %d.\n",
> + ch, adapter->name, dvo->target_addr);
> goto out;
> }
> sil->quiet = false;
> diff --git a/drivers/gpu/drm/i915/display/dvo_tfp410.c b/drivers/gpu/drm/i915/display/dvo_tfp410.c
> index 0939e097f4f9..d9a0cd753a87 100644
> --- a/drivers/gpu/drm/i915/display/dvo_tfp410.c
> +++ b/drivers/gpu/drm/i915/display/dvo_tfp410.c
> @@ -100,13 +100,13 @@ static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)
>
> struct i2c_msg msgs[] = {
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 1,
> .buf = out_buf,
> },
> {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = I2C_M_RD,
> .len = 1,
> .buf = in_buf,
> @@ -123,7 +123,7 @@ static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, u8 *ch)
>
> if (!tfp->quiet) {
> DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
> return false;
> }
> @@ -134,7 +134,7 @@ static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)
> struct i2c_adapter *adapter = dvo->i2c_bus;
> u8 out_buf[2];
> struct i2c_msg msg = {
> - .addr = dvo->slave_addr,
> + .addr = dvo->target_addr,
> .flags = 0,
> .len = 2,
> .buf = out_buf,
> @@ -148,7 +148,7 @@ static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, u8 ch)
>
> if (!tfp->quiet) {
> DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
> - addr, adapter->name, dvo->slave_addr);
> + addr, adapter->name, dvo->target_addr);
> }
>
> return false;
> @@ -183,15 +183,15 @@ static bool tfp410_init(struct intel_dvo_device *dvo,
>
> if ((id = tfp410_getid(dvo, TFP410_VID_LO)) != TFP410_VID) {
> DRM_DEBUG_KMS("tfp410 not detected got VID %X: from %s "
> - "Slave %d.\n",
> - id, adapter->name, dvo->slave_addr);
> + "Target %d.\n",
> + id, adapter->name, dvo->target_addr);
> goto out;
> }
>
> if ((id = tfp410_getid(dvo, TFP410_DID_LO)) != TFP410_DID) {
> DRM_DEBUG_KMS("tfp410 not detected got DID %X: from %s "
> - "Slave %d.\n",
> - id, adapter->name, dvo->slave_addr);
> + "Target %d.\n",
> + id, adapter->name, dvo->target_addr);
> goto out;
> }
> tfp->quiet = false;
> diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
> index 52bd3576835b..3d4ecfc9462a 100644
> --- a/drivers/gpu/drm/i915/display/intel_bios.c
> +++ b/drivers/gpu/drm/i915/display/intel_bios.c
> @@ -69,8 +69,8 @@ struct intel_bios_encoder_data {
> struct list_head node;
> };
>
> -#define SLAVE_ADDR1 0x70
> -#define SLAVE_ADDR2 0x72
> +#define TARGET_ADDR1 0x70
> +#define TARGET_ADDR2 0x72
>
> /* Get BDB block size given a pointer to Block ID. */
> static u32 _get_blocksize(const u8 *block_base)
> @@ -1231,10 +1231,10 @@ parse_sdvo_device_mapping(struct drm_i915_private *i915)
> const struct child_device_config *child = &devdata->child;
> struct sdvo_device_mapping *mapping;
>
> - if (child->slave_addr != SLAVE_ADDR1 &&
> - child->slave_addr != SLAVE_ADDR2) {
> + if (child->target_addr != TARGET_ADDR1 &&
> + child->target_addr != TARGET_ADDR2) {
> /*
> - * If the slave address is neither 0x70 nor 0x72,
> + * If the target address is neither 0x70 nor 0x72,
> * it is not a SDVO device. Skip it.
> */
> continue;
> @@ -1247,22 +1247,22 @@ parse_sdvo_device_mapping(struct drm_i915_private *i915)
> continue;
> }
> drm_dbg_kms(&i915->drm,
> - "the SDVO device with slave addr %2x is found on"
> + "the SDVO device with target addr %2x is found on"
> " %s port\n",
> - child->slave_addr,
> + child->target_addr,
> (child->dvo_port == DEVICE_PORT_DVOB) ?
> "SDVOB" : "SDVOC");
> mapping = &i915->display.vbt.sdvo_mappings[child->dvo_port - 1];
> if (!mapping->initialized) {
> mapping->dvo_port = child->dvo_port;
> - mapping->slave_addr = child->slave_addr;
> + mapping->target_addr = child->target_addr;
> mapping->dvo_wiring = child->dvo_wiring;
> mapping->ddc_pin = child->ddc_pin;
> mapping->i2c_pin = child->i2c_pin;
> mapping->initialized = 1;
> drm_dbg_kms(&i915->drm,
> "SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d\n",
> - mapping->dvo_port, mapping->slave_addr,
> + mapping->dvo_port, mapping->target_addr,
> mapping->dvo_wiring, mapping->ddc_pin,
> mapping->i2c_pin);
> } else {
> @@ -1270,11 +1270,11 @@ parse_sdvo_device_mapping(struct drm_i915_private *i915)
> "Maybe one SDVO port is shared by "
> "two SDVO device.\n");
> }
> - if (child->slave2_addr) {
> + if (child->target2_addr) {
> /* Maybe this is a SDVO device with multiple inputs */
> /* And the mapping info is not added */
> drm_dbg_kms(&i915->drm,
> - "there exists the slave2_addr. Maybe this"
> + "there exists the target2_addr. Maybe this"
> " is a SDVO device with multiple inputs.\n");
> }
> count++;
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index c17462b4c2ac..64db211148a8 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -4332,7 +4332,7 @@ static int intel_ddi_compute_config_late(struct intel_encoder *encoder,
> connector->tile_group->id);
>
> /*
> - * EDP Transcoders cannot be ensalved
> + * EDP Transcoders cannot be slaves

^ here
perhaps you meant 'targeted' ?

> * make them a master always when present
> */
> if (port_sync_transcoders & BIT(TRANSCODER_EDP))
> diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h b/drivers/gpu/drm/i915/display/intel_display_core.h
> index 2167dbee5eea..5bfc91f0b563 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_core.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_core.h
> @@ -236,7 +236,7 @@ struct intel_vbt_data {
> struct sdvo_device_mapping {
> u8 initialized;
> u8 dvo_port;
> - u8 slave_addr;
> + u8 target_addr;
> u8 dvo_wiring;
> u8 i2c_pin;
> u8 ddc_pin;
> diff --git a/drivers/gpu/drm/i915/display/intel_dsi.h b/drivers/gpu/drm/i915/display/intel_dsi.h
> index e99c94edfaae..e8ba4ccd99d3 100644
> --- a/drivers/gpu/drm/i915/display/intel_dsi.h
> +++ b/drivers/gpu/drm/i915/display/intel_dsi.h
> @@ -66,7 +66,7 @@ struct intel_dsi {
> /* number of DSI lanes */
> unsigned int lane_count;
>
> - /* i2c bus associated with the slave device */
> + /* i2c bus associated with the target device */
> int i2c_bus_num;
>
> /*
> diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
> index a5d7fc8418c9..fb0b02e30c8b 100644
> --- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
> +++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
> @@ -56,7 +56,7 @@
> #define MIPI_PORT_SHIFT 3
>
> struct i2c_adapter_lookup {
> - u16 slave_addr;
> + u16 target_addr;
> struct intel_dsi *intel_dsi;
> acpi_handle dev_handle;
> };
> @@ -443,7 +443,7 @@ static int i2c_adapter_lookup(struct acpi_resource *ares, void *data)
> if (!i2c_acpi_get_i2c_resource(ares, &sb))
> return 1;
>
> - if (lookup->slave_addr != sb->slave_address)
> + if (lookup->target_addr != sb->slave_address)
> return 1;
>
> status = acpi_get_handle(lookup->dev_handle,
> @@ -460,12 +460,12 @@ static int i2c_adapter_lookup(struct acpi_resource *ares, void *data)
> }
>
> static void i2c_acpi_find_adapter(struct intel_dsi *intel_dsi,
> - const u16 slave_addr)
> + const u16 target_addr)
> {
> struct drm_device *drm_dev = intel_dsi->base.base.dev;
> struct acpi_device *adev = ACPI_COMPANION(drm_dev->dev);
> struct i2c_adapter_lookup lookup = {
> - .slave_addr = slave_addr,
> + .target_addr = target_addr,
> .intel_dsi = intel_dsi,
> .dev_handle = acpi_device_handle(adev),
> };
> @@ -476,7 +476,7 @@ static void i2c_acpi_find_adapter(struct intel_dsi *intel_dsi,
> }
> #else
> static inline void i2c_acpi_find_adapter(struct intel_dsi *intel_dsi,
> - const u16 slave_addr)
> + const u16 target_addr)
> {
> }
> #endif
> @@ -488,17 +488,17 @@ static const u8 *mipi_exec_i2c(struct intel_dsi *intel_dsi, const u8 *data)
> struct i2c_msg msg;
> int ret;
> u8 vbt_i2c_bus_num = *(data + 2);
> - u16 slave_addr = *(u16 *)(data + 3);
> + u16 target_addr = *(u16 *)(data + 3);
> u8 reg_offset = *(data + 5);
> u8 payload_size = *(data + 6);
> u8 *payload_data;
>
> - drm_dbg_kms(&i915->drm, "bus %d client-addr 0x%02x reg 0x%02x data %*ph\n",
> - vbt_i2c_bus_num, slave_addr, reg_offset, payload_size, data + 7);
> + drm_dbg_kms(&i915->drm, "bus %d target-addr 0x%02x reg 0x%02x data %*ph\n",
> + vbt_i2c_bus_num, target_addr, reg_offset, payload_size, data + 7);
>
> if (intel_dsi->i2c_bus_num < 0) {
> intel_dsi->i2c_bus_num = vbt_i2c_bus_num;
> - i2c_acpi_find_adapter(intel_dsi, slave_addr);
> + i2c_acpi_find_adapter(intel_dsi, target_addr);
> }
>
> adapter = i2c_get_adapter(intel_dsi->i2c_bus_num);
> @@ -514,7 +514,7 @@ static const u8 *mipi_exec_i2c(struct intel_dsi *intel_dsi, const u8 *data)
> payload_data[0] = reg_offset;
> memcpy(&payload_data[1], (data + 7), payload_size);
>
> - msg.addr = slave_addr;
> + msg.addr = target_addr;
> msg.flags = 0;
> msg.len = payload_size + 1;
> msg.buf = payload_data;
> diff --git a/drivers/gpu/drm/i915/display/intel_dvo.c b/drivers/gpu/drm/i915/display/intel_dvo.c
> index c076da75b066..8d4c8f33f776 100644
> --- a/drivers/gpu/drm/i915/display/intel_dvo.c
> +++ b/drivers/gpu/drm/i915/display/intel_dvo.c
> @@ -60,42 +60,42 @@ static const struct intel_dvo_device intel_dvo_devices[] = {
> .type = INTEL_DVO_CHIP_TMDS,
> .name = "sil164",
> .port = PORT_C,
> - .slave_addr = SIL164_ADDR,
> + .target_addr = SIL164_ADDR,
> .dev_ops = &sil164_ops,
> },
> {
> .type = INTEL_DVO_CHIP_TMDS,
> .name = "ch7xxx",
> .port = PORT_C,
> - .slave_addr = CH7xxx_ADDR,
> + .target_addr = CH7xxx_ADDR,
> .dev_ops = &ch7xxx_ops,
> },
> {
> .type = INTEL_DVO_CHIP_TMDS,
> .name = "ch7xxx",
> .port = PORT_C,
> - .slave_addr = 0x75, /* For some ch7010 */
> + .target_addr = 0x75, /* For some ch7010 */
> .dev_ops = &ch7xxx_ops,
> },
> {
> .type = INTEL_DVO_CHIP_LVDS,
> .name = "ivch",
> .port = PORT_A,
> - .slave_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */
> + .target_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */
> .dev_ops = &ivch_ops,
> },
> {
> .type = INTEL_DVO_CHIP_TMDS,
> .name = "tfp410",
> .port = PORT_C,
> - .slave_addr = TFP410_ADDR,
> + .target_addr = TFP410_ADDR,
> .dev_ops = &tfp410_ops,
> },
> {
> .type = INTEL_DVO_CHIP_LVDS,
> .name = "ch7017",
> .port = PORT_C,
> - .slave_addr = 0x75,
> + .target_addr = 0x75,
> .gpio = GMBUS_PIN_DPB,
> .dev_ops = &ch7017_ops,
> },
> @@ -103,7 +103,7 @@ static const struct intel_dvo_device intel_dvo_devices[] = {
> .type = INTEL_DVO_CHIP_LVDS_NO_FIXED,
> .name = "ns2501",
> .port = PORT_B,
> - .slave_addr = NS2501_ADDR,
> + .target_addr = NS2501_ADDR,
> .dev_ops = &ns2501_ops,
> },
> };
> diff --git a/drivers/gpu/drm/i915/display/intel_dvo_dev.h b/drivers/gpu/drm/i915/display/intel_dvo_dev.h
> index af7b04539b93..4bf476656b8c 100644
> --- a/drivers/gpu/drm/i915/display/intel_dvo_dev.h
> +++ b/drivers/gpu/drm/i915/display/intel_dvo_dev.h
> @@ -38,7 +38,7 @@ struct intel_dvo_device {
> enum port port;
> /* GPIO register used for i2c bus to control this device */
> u32 gpio;
> - int slave_addr;
> + int target_addr;
>
> const struct intel_dvo_dev_ops *dev_ops;
> void *dev_priv;
> diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.c b/drivers/gpu/drm/i915/display/intel_gmbus.c
> index d3e03ed5b79c..fe9a3c1f0072 100644
> --- a/drivers/gpu/drm/i915/display/intel_gmbus.c
> +++ b/drivers/gpu/drm/i915/display/intel_gmbus.c
> @@ -478,7 +478,7 @@ gmbus_xfer_read_chunk(struct drm_i915_private *i915,
> /*
> * HW spec says that 512Bytes in Burst read need special treatment.
> * But it doesn't talk about other multiple of 256Bytes. And couldn't locate
> - * an I2C slave, which supports such a lengthy burst read too for experiments.
> + * an I2C target, which supports such a lengthy burst read too for experiments.
> *
> * So until things get clarified on HW support, to avoid the burst read length
> * in fold of 256Bytes except 512, max burst read length is fixed at 767Bytes.
> @@ -701,7 +701,7 @@ do_gmbus_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, int num,
>
> /* Toggle the Software Clear Interrupt bit. This has the effect
> * of resetting the GMBUS controller and so clearing the
> - * BUS_ERROR raised by the slave's NAK.
> + * BUS_ERROR raised by the target's NAK.
> */
> intel_de_write_fw(i915, GMBUS1(i915), GMBUS_SW_CLR_INT);
> intel_de_write_fw(i915, GMBUS1(i915), 0);
> diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c
> index 0cd9c183f621..cb50bf9c211d 100644
> --- a/drivers/gpu/drm/i915/display/intel_sdvo.c
> +++ b/drivers/gpu/drm/i915/display/intel_sdvo.c
> @@ -95,7 +95,7 @@ struct intel_sdvo {
> struct intel_encoder base;
>
> struct i2c_adapter *i2c;
> - u8 slave_addr;
> + u8 target_addr;
>
> struct intel_sdvo_ddc ddc[3];
>
> @@ -255,13 +255,13 @@ static bool intel_sdvo_read_byte(struct intel_sdvo *intel_sdvo, u8 addr, u8 *ch)
> struct drm_i915_private *i915 = to_i915(intel_sdvo->base.base.dev);
> struct i2c_msg msgs[] = {
> {
> - .addr = intel_sdvo->slave_addr,
> + .addr = intel_sdvo->target_addr,
> .flags = 0,
> .len = 1,
> .buf = &addr,
> },
> {
> - .addr = intel_sdvo->slave_addr,
> + .addr = intel_sdvo->target_addr,
> .flags = I2C_M_RD,
> .len = 1,
> .buf = ch,
> @@ -483,14 +483,14 @@ static bool __intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
> intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
>
> for (i = 0; i < args_len; i++) {
> - msgs[i].addr = intel_sdvo->slave_addr;
> + msgs[i].addr = intel_sdvo->target_addr;
> msgs[i].flags = 0;
> msgs[i].len = 2;
> msgs[i].buf = buf + 2 *i;
> buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
> buf[2*i + 1] = ((u8*)args)[i];
> }
> - msgs[i].addr = intel_sdvo->slave_addr;
> + msgs[i].addr = intel_sdvo->target_addr;
> msgs[i].flags = 0;
> msgs[i].len = 2;
> msgs[i].buf = buf + 2*i;
> @@ -499,12 +499,12 @@ static bool __intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
>
> /* the following two are to read the response */
> status = SDVO_I2C_CMD_STATUS;
> - msgs[i+1].addr = intel_sdvo->slave_addr;
> + msgs[i+1].addr = intel_sdvo->target_addr;
> msgs[i+1].flags = 0;
> msgs[i+1].len = 1;
> msgs[i+1].buf = &status;
>
> - msgs[i+2].addr = intel_sdvo->slave_addr;
> + msgs[i+2].addr = intel_sdvo->target_addr;
> msgs[i+2].flags = I2C_M_RD;
> msgs[i+2].len = 1;
> msgs[i+2].buf = &status;
> @@ -2655,9 +2655,9 @@ intel_sdvo_select_i2c_bus(struct intel_sdvo *sdvo)
> else
> pin = GMBUS_PIN_DPB;
>
> - drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s] I2C pin %d, slave addr 0x%x\n",
> + drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s] I2C pin %d, target addr 0x%x\n",
> sdvo->base.base.base.id, sdvo->base.base.name,
> - pin, sdvo->slave_addr);
> + pin, sdvo->target_addr);
>
> sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);
>
> @@ -2683,7 +2683,7 @@ intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo)
> }
>
> static u8
> -intel_sdvo_get_slave_addr(struct intel_sdvo *sdvo)
> +intel_sdvo_get_target_addr(struct intel_sdvo *sdvo)
> {
> struct drm_i915_private *dev_priv = to_i915(sdvo->base.base.dev);
> const struct sdvo_device_mapping *my_mapping, *other_mapping;
> @@ -2697,15 +2697,15 @@ intel_sdvo_get_slave_addr(struct intel_sdvo *sdvo)
> }
>
> /* If the BIOS described our SDVO device, take advantage of it. */
> - if (my_mapping->slave_addr)
> - return my_mapping->slave_addr;
> + if (my_mapping->target_addr)
> + return my_mapping->target_addr;
>
> /*
> * If the BIOS only described a different SDVO device, use the
> * address that it isn't using.
> */
> - if (other_mapping->slave_addr) {
> - if (other_mapping->slave_addr == 0x70)
> + if (other_mapping->target_addr) {
> + if (other_mapping->target_addr == 0x70)
> return 0x72;
> else
> return 0x70;
> @@ -3408,7 +3408,7 @@ bool intel_sdvo_init(struct drm_i915_private *dev_priv,
> "SDVO %c", port_name(port));
>
> intel_sdvo->sdvo_reg = sdvo_reg;
> - intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(intel_sdvo) >> 1;
> + intel_sdvo->target_addr = intel_sdvo_get_target_addr(intel_sdvo) >> 1;
>
> intel_sdvo_select_i2c_bus(intel_sdvo);
>
> diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> index a9f44abfc9fc..c0d5aae980a8 100644
> --- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> +++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> @@ -432,7 +432,7 @@ struct child_device_config {
> u16 addin_offset;
> u8 dvo_port; /* See DEVICE_PORT_* and DVO_PORT_* above */
> u8 i2c_pin;
> - u8 slave_addr;
> + u8 target_addr;
> u8 ddc_pin;
> u16 edid_ptr;
> u8 dvo_cfg; /* See DEVICE_CFG_* above */
> @@ -441,7 +441,7 @@ struct child_device_config {
> struct {
> u8 dvo2_port;
> u8 i2c2_pin;
> - u8 slave2_addr;
> + u8 target2_addr;
> u8 ddc2_pin;
> } __packed;
> struct {
> diff --git a/drivers/gpu/drm/i915/gvt/edid.c b/drivers/gpu/drm/i915/gvt/edid.c
> index af9afdb53c7f..c022dc736045 100644
> --- a/drivers/gpu/drm/i915/gvt/edid.c
> +++ b/drivers/gpu/drm/i915/gvt/edid.c
> @@ -42,8 +42,8 @@
> #define GMBUS1_TOTAL_BYTES_MASK 0x1ff
> #define gmbus1_total_byte_count(v) (((v) >> \
> GMBUS1_TOTAL_BYTES_SHIFT) & GMBUS1_TOTAL_BYTES_MASK)
> -#define gmbus1_slave_addr(v) (((v) & 0xff) >> 1)
> -#define gmbus1_slave_index(v) (((v) >> 8) & 0xff)
> +#define gmbus1_target_addr(v) (((v) & 0xff) >> 1)
> +#define gmbus1_target_index(v) (((v) >> 8) & 0xff)
> #define gmbus1_bus_cycle(v) (((v) >> 25) & 0x7)
>
> /* GMBUS0 bits definitions */
> @@ -54,7 +54,7 @@ static unsigned char edid_get_byte(struct intel_vgpu *vgpu)
> struct intel_vgpu_i2c_edid *edid = &vgpu->display.i2c_edid;
> unsigned char chr = 0;
>
> - if (edid->state == I2C_NOT_SPECIFIED || !edid->slave_selected) {
> + if (edid->state == I2C_NOT_SPECIFIED || !edid->target_selected) {
> gvt_vgpu_err("Driver tries to read EDID without proper sequence!\n");
> return 0;
> }
> @@ -179,7 +179,7 @@ static int gmbus1_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
> void *p_data, unsigned int bytes)
> {
> struct intel_vgpu_i2c_edid *i2c_edid = &vgpu->display.i2c_edid;
> - u32 slave_addr;
> + u32 target_addr;
> u32 wvalue = *(u32 *)p_data;
>
> if (vgpu_vreg(vgpu, offset) & GMBUS_SW_CLR_INT) {
> @@ -210,21 +210,21 @@ static int gmbus1_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
>
> i2c_edid->gmbus.total_byte_count =
> gmbus1_total_byte_count(wvalue);
> - slave_addr = gmbus1_slave_addr(wvalue);
> + target_addr = gmbus1_target_addr(wvalue);
>
> /* vgpu gmbus only support EDID */
> - if (slave_addr == EDID_ADDR) {
> - i2c_edid->slave_selected = true;
> - } else if (slave_addr != 0) {
> + if (target_addr == EDID_ADDR) {
> + i2c_edid->target_selected = true;
> + } else if (target_addr != 0) {
> gvt_dbg_dpy(
> - "vgpu%d: unsupported gmbus slave addr(0x%x)\n"
> + "vgpu%d: unsupported gmbus target addr(0x%x)\n"
> " gmbus operations will be ignored.\n",
> - vgpu->id, slave_addr);
> + vgpu->id, target_addr);
> }
>
> if (wvalue & GMBUS_CYCLE_INDEX)
> i2c_edid->current_edid_read =
> - gmbus1_slave_index(wvalue);
> + gmbus1_target_index(wvalue);
>
> i2c_edid->gmbus.cycle_type = gmbus1_bus_cycle(wvalue);
> switch (gmbus1_bus_cycle(wvalue)) {
> @@ -523,7 +523,7 @@ void intel_gvt_i2c_handle_aux_ch_write(struct intel_vgpu *vgpu,
> } else if (addr == EDID_ADDR) {
> i2c_edid->state = I2C_AUX_CH;
> i2c_edid->port = port_idx;
> - i2c_edid->slave_selected = true;
> + i2c_edid->target_selected = true;
> if (intel_vgpu_has_monitor_on_port(vgpu,
> port_idx) &&
> intel_vgpu_port_is_dp(vgpu, port_idx))
> @@ -542,7 +542,7 @@ void intel_gvt_i2c_handle_aux_ch_write(struct intel_vgpu *vgpu,
> return;
> if (drm_WARN_ON(&i915->drm, msg_length != 4))
> return;
> - if (i2c_edid->edid_available && i2c_edid->slave_selected) {
> + if (i2c_edid->edid_available && i2c_edid->target_selected) {
> unsigned char val = edid_get_byte(vgpu);
>
> aux_data_for_write = (val << 16);
> @@ -571,7 +571,7 @@ void intel_vgpu_init_i2c_edid(struct intel_vgpu *vgpu)
> edid->state = I2C_NOT_SPECIFIED;
>
> edid->port = -1;
> - edid->slave_selected = false;
> + edid->target_selected = false;
> edid->edid_available = false;
> edid->current_edid_read = 0;
>
> diff --git a/drivers/gpu/drm/i915/gvt/edid.h b/drivers/gpu/drm/i915/gvt/edid.h
> index dfe0cbc6aad8..c3b5a55aecb3 100644
> --- a/drivers/gpu/drm/i915/gvt/edid.h
> +++ b/drivers/gpu/drm/i915/gvt/edid.h
> @@ -80,7 +80,7 @@ enum gmbus_cycle_type {
> * R/W Protect
> * Command and Status.
> * bit0 is the direction bit: 1 is read; 0 is write.
> - * bit1 - bit7 is slave 7-bit address.
> + * bit1 - bit7 is target 7-bit address.
> * bit16 - bit24 total byte count (ignore?)
> *
> * GMBUS2:
> @@ -130,7 +130,7 @@ struct intel_vgpu_i2c_edid {
> enum i2c_state state;
>
> unsigned int port;
> - bool slave_selected;
> + bool target_selected;
> bool edid_available;
> unsigned int current_edid_read;
>
> diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c
> index d2bed466540a..908f910420c2 100644
> --- a/drivers/gpu/drm/i915/gvt/opregion.c
> +++ b/drivers/gpu/drm/i915/gvt/opregion.c
> @@ -86,7 +86,7 @@ struct efp_child_device_config {
> u8 skip2;
> u8 dvo_port;
> u8 i2c_pin; /* for add-in card */
> - u8 slave_addr; /* for add-in card */
> + u8 target_addr; /* for add-in card */
> u8 ddc_pin;
> u16 edid_ptr;
> u8 dvo_config;
> --
> 2.34.1
>