On Thu, Jan 28, 2010 at 2:17 AM, Dave Airlie <airl...@gmail.com> wrote:
> From: Dave Airlie <airl...@redhat.com>
>
> booting a Lenovo W500 with LVDS + DP outputs showed up a TODO we had
> on our list, to pick a correct digital encoder block. The LVTMA
> encoder requires the second digital encoder, all others can use any
> encoder at all.
>
> This fixes the digital encoder selection logic to enable LVDS/DP combos
> to work okay.
>
> TODO:
> test on W500 hw.
>
> Signed-off-by: Dave Airlie <airl...@redhat.com>
> ---
> drivers/gpu/drm/radeon/radeon_encoders.c | 103
> ++++++++++++++++++++----------
> drivers/gpu/drm/radeon/radeon_mode.h | 1 +
> 2 files changed, 70 insertions(+), 34 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c
> b/drivers/gpu/drm/radeon/radeon_encoders.c
> index 18decfa..9074ad9 100644
> --- a/drivers/gpu/drm/radeon/radeon_encoders.c
> +++ b/drivers/gpu/drm/radeon/radeon_encoders.c
> @@ -156,6 +156,26 @@ radeon_get_encoder_id(struct drm_device *dev, uint32_t
> supported_device, uint8_t
> return ret;
> }
>
> +static inline bool radeon_encoder_is_digital(struct drm_encoder *encoder)
> +{
> + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
> + switch (radeon_encoder->encoder_id) {
> + case ENCODER_OBJECT_ID_INTERNAL_LVDS:
> + case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
> + case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
> + case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
> + case ENCODER_OBJECT_ID_INTERNAL_DVO1:
> + case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
> + case ENCODER_OBJECT_ID_INTERNAL_DDI:
> + case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
> + case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
> + case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
> + case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
> + return true;
> + default:
> + return false;
> + }
> +}
> void
> radeon_link_encoder_connector(struct drm_device *dev)
> {
> @@ -679,31 +699,11 @@ atombios_dig_encoder_setup(struct drm_encoder *encoder,
> int action)
>
> memset(&args, 0, sizeof(args));
>
> - if (ASIC_IS_DCE32(rdev)) {
> - if (dig->dig_block)
> - index = GetIndexIntoMasterTable(COMMAND,
> DIG2EncoderControl);
> - else
> - index = GetIndexIntoMasterTable(COMMAND,
> DIG1EncoderControl);
> - num = dig->dig_block + 1;
> - } else {
> - switch (radeon_encoder->encoder_id) {
> - case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
> - /* XXX doesn't really matter which dig encoder we
> pick as long as it's
> - * not already in use
> - */
> - if (dig_connector->linkb)
> - index = GetIndexIntoMasterTable(COMMAND,
> DIG2EncoderControl);
> - else
> - index = GetIndexIntoMasterTable(COMMAND,
> DIG1EncoderControl);
> - num = 1;
> - break;
> - case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
> - /* Only dig2 encoder can drive LVTMA */
> - index = GetIndexIntoMasterTable(COMMAND,
> DIG2EncoderControl);
> - num = 2;
> - break;
> - }
> - }
> + if (dig->dig_block)
> + index = GetIndexIntoMasterTable(COMMAND, DIG2EncoderControl);
> + else
> + index = GetIndexIntoMasterTable(COMMAND, DIG1EncoderControl);
> + num = dig->dig_block + 1;
>
> atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
> &crev);
>
> @@ -856,10 +856,7 @@ atombios_dig_transmitter_setup(struct drm_encoder
> *encoder, int action, uint8_t
>
> switch (radeon_encoder->encoder_id) {
> case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
> - /* XXX doesn't really matter which dig encoder we
> pick as long as it's
> - * not already in use
> - */
> - if (dig_connector->linkb)
> + if (dig_connector->dig_block)
> args.v1.ucConfig |=
> ATOM_TRANSMITTER_CONFIG_DIG2_ENCODER;
> else
> args.v1.ucConfig |=
> ATOM_TRANSMITTER_CONFIG_DIG1_ENCODER;
> @@ -1133,10 +1130,7 @@ atombios_set_encoder_crtc_source(struct drm_encoder
> *encoder)
> return;
> dig_connector =
> radeon_connector->con_priv;
>
> - /* XXX doesn't really matter which
> dig encoder we pick as long as it's
> - * not already in use
> - */
> - if (dig_connector->linkb)
> + if (dig_connector->dig_block)
> args.v2.ucEncoderID =
> ASIC_INT_DIG2_ENCODER_ID;
> else
> args.v2.ucEncoderID =
> ASIC_INT_DIG1_ENCODER_ID;
> @@ -1208,6 +1202,40 @@ atombios_apply_encoder_quirks(struct drm_encoder
> *encoder,
> }
> }
>
> +static int radeon_atom_pick_dig_block(struct drm_encoder *encoder)
> +{
> + struct drm_device *dev = encoder->dev;
> + struct radeon_device *rdev = dev->dev_private;
> + struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
> + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
> + struct drm_encoder *test_encoder;
> + struct radeon_encoder_atom_dig *dig;
> + uint32_t dig_enc_in_use = 0;
> + /* on DCE32 and encoder can driver any block so just crtc id */
> + if (ASIC_IS_DCE32(rdev))
> + return radeon_crtc->crtc_id;
> +
> + /* on DCE3 - LVTMA can only be driven by block 2 */
> + list_for_each_entry(test_encoder, &dev->mode_config.encoder_list,
> head) {
> + if (!radeon_encoder_is_digital(encoder))
> + continue;
> +
> + dig = radeon_encoder->enc_priv;
> +
> + if ((encoder != test_encoder) && (dig->dig_block >= 0))
> + dig_enc_in_use |= (1 << dig->dig_block);
> + }
> +
> + if (radeon_encoder->encoder_id ==
> ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA) {
> + if (dig_enc_in_use & 0x2)
> + DRM_ERROR("LVDS required digital encoder 2 but it was
> in use - stealing\n");
> + return 1;
> + }
> + if (!(dig_enc_in_use & 1))
> + return 0;
> + return 1;
> +}
> +
> static void
> radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
> struct drm_display_mode *mode,
> @@ -1224,7 +1252,7 @@ radeon_atom_encoder_mode_set(struct drm_encoder
> *encoder,
> struct radeon_encoder_atom_dig *dig;
>
> dig = radeon_encoder->enc_priv;
> - dig->dig_block = radeon_crtc->crtc_id;
> + dig->dig_block = radeon_atom_pick_dig_block(encoder);
> }
> }
> radeon_encoder->pixel_clock = adjusted_mode->clock;
> @@ -1385,7 +1413,13 @@ static void radeon_atom_encoder_commit(struct
> drm_encoder *encoder)
> static void radeon_atom_encoder_disable(struct drm_encoder *encoder)
> {
> struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
> + struct radeon_encoder_atom_dig *dig;
> radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
> +
> + if (radeon_encoder_is_digital(encoder)) {
> + dig = radeon_encoder->enc_priv;
> + dig->dig_block = -1;
> + }
> radeon_encoder->active_device = 0;
> }
>
> @@ -1442,6 +1476,7 @@ radeon_atombios_set_dig_info(struct radeon_encoder
> *radeon_encoder)
>
> /* coherent mode by default */
> dig->coherent_mode = true;
> + dig->dig_block = -1;
>
> return dig;
> }
> diff --git a/drivers/gpu/drm/radeon/radeon_mode.h
> b/drivers/gpu/drm/radeon/radeon_mode.h
> index a1fe11b..e58a654 100644
> --- a/drivers/gpu/drm/radeon/radeon_mode.h
> +++ b/drivers/gpu/drm/radeon/radeon_mode.h
> @@ -335,6 +335,7 @@ struct radeon_encoder {
> struct radeon_connector_atom_dig {
> uint32_t igp_lane_info;
> bool linkb;
> + int dig_block; /* -1 invalid, 0 == DIG1, 1 == DIG2 */
that's not needed. the dig_block is already a member of the atom
encoder struct.
Alex
> /* displayport */
> struct radeon_i2c_chan *dp_i2c_bus;
> u8 dpcd[8];
> --
> 1.6.6
>
>
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