diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv04_dfp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv04_dfp.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c index 3311f3a8c818..a5dcf7685800 100644 --- a/drivers/gpu/drm/nouveau/nv04_dfp.c +++ b/drivers/gpu/drm/nouveau/nv04_dfp.c @@ -34,6 +34,8 @@ #include "nouveau_hw.h" #include "nvreg.h" +#include "i2c/sil164.h" + #define FP_TG_CONTROL_ON (NV_PRAMDAC_FP_TG_CONTROL_DISPEN_POS | \ NV_PRAMDAC_FP_TG_CONTROL_HSYNC_POS | \ NV_PRAMDAC_FP_TG_CONTROL_VSYNC_POS) @@ -144,6 +146,36 @@ void nv04_dfp_update_fp_control(struct drm_encoder *encoder, int mode) } } +static struct drm_encoder *get_tmds_slave(struct drm_encoder *encoder) +{ + struct drm_device *dev = encoder->dev; + struct dcb_entry *dcb = nouveau_encoder(encoder)->dcb; + struct drm_encoder *slave; + + if (dcb->type != OUTPUT_TMDS || dcb->location == DCB_LOC_ON_CHIP) + return NULL; + + /* Some BIOSes (e.g. the one in a Quadro FX1000) report several + * TMDS transmitters at the same I2C address, in the same I2C + * bus. This can still work because in that case one of them is + * always hard-wired to a reasonable configuration using straps, + * and the other one needs to be programmed. + * + * I don't think there's a way to know which is which, even the + * blob programs the one exposed via I2C for *both* heads, so + * let's do the same. + */ + list_for_each_entry(slave, &dev->mode_config.encoder_list, head) { + struct dcb_entry *slave_dcb = nouveau_encoder(slave)->dcb; + + if (slave_dcb->type == OUTPUT_TMDS && get_slave_funcs(slave) && + slave_dcb->tmdsconf.slave_addr == dcb->tmdsconf.slave_addr) + return slave; + } + + return NULL; +} + static bool nv04_dfp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) @@ -429,6 +461,11 @@ static void nv04_dfp_commit(struct drm_encoder *encoder) else NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + nv04_dac_output_offset(encoder), 0x00100000); + /* Init external transmitters */ + if (get_tmds_slave(encoder)) + get_slave_funcs(get_tmds_slave(encoder))->mode_set( + encoder, &nv_encoder->mode, &nv_encoder->mode); + helper->dpms(encoder, DRM_MODE_DPMS_ON); NV_INFO(dev, "Output %s is running on CRTC %d using output %c\n", @@ -550,10 +587,42 @@ static void nv04_dfp_destroy(struct drm_encoder *encoder) NV_DEBUG_KMS(encoder->dev, "\n"); + if (get_slave_funcs(encoder)) + get_slave_funcs(encoder)->destroy(encoder); + drm_encoder_cleanup(encoder); kfree(nv_encoder); } +static void nv04_tmds_slave_init(struct drm_encoder *encoder) +{ + struct drm_device *dev = encoder->dev; + struct dcb_entry *dcb = nouveau_encoder(encoder)->dcb; + struct nouveau_i2c_chan *i2c = nouveau_i2c_find(dev, 2); + struct i2c_board_info info[] = { + { + .type = "sil164", + .addr = (dcb->tmdsconf.slave_addr == 0x7 ? 0x3a : 0x38), + .platform_data = &(struct sil164_encoder_params) { + SIL164_INPUT_EDGE_RISING + } + }, + { } + }; + int type; + + if (!nv_gf4_disp_arch(dev) || !i2c || + get_tmds_slave(encoder)) + return; + + type = nouveau_i2c_identify(dev, "TMDS transmitter", info, 2); + if (type < 0) + return; + + drm_i2c_encoder_init(dev, to_encoder_slave(encoder), + &i2c->adapter, &info[type]); +} + static const struct drm_encoder_helper_funcs nv04_lvds_helper_funcs = { .dpms = nv04_lvds_dpms, .save = nv04_dfp_save, @@ -616,6 +685,10 @@ nv04_dfp_create(struct drm_connector *connector, struct dcb_entry *entry) encoder->possible_crtcs = entry->heads; encoder->possible_clones = 0; + if (entry->type == OUTPUT_TMDS && + entry->location != DCB_LOC_ON_CHIP) + nv04_tmds_slave_init(encoder); + drm_mode_connector_attach_encoder(connector, encoder); return 0; } |