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path: root/drivers/gpu/drm/nouveau/nouveau_dp.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_dp.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_dp.c702
1 files changed, 32 insertions, 670 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
index 9b93b703cea..5675ffc175a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -22,646 +22,62 @@
* Authors: Ben Skeggs
*/
-#include "drmP.h"
+#include <drm/drmP.h>
+#include <drm/drm_dp_helper.h>
-#include "nouveau_drv.h"
-#include "nouveau_i2c.h"
+#include "nouveau_drm.h"
#include "nouveau_connector.h"
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
-#include "nouveau_gpio.h"
-/******************************************************************************
- * aux channel util functions
- *****************************************************************************/
-#define AUX_DBG(fmt, args...) do { \
- if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_AUXCH) { \
- NV_PRINTK(KERN_DEBUG, dev, "AUXCH(%d): " fmt, ch, ##args); \
- } \
-} while (0)
-#define AUX_ERR(fmt, args...) NV_ERROR(dev, "AUXCH(%d): " fmt, ch, ##args)
+#include <core/class.h>
-static void
-auxch_fini(struct drm_device *dev, int ch)
-{
- nv_mask(dev, 0x00e4e4 + (ch * 0x50), 0x00310000, 0x00000000);
-}
-
-static int
-auxch_init(struct drm_device *dev, int ch)
-{
- const u32 unksel = 1; /* nfi which to use, or if it matters.. */
- const u32 ureq = unksel ? 0x00100000 : 0x00200000;
- const u32 urep = unksel ? 0x01000000 : 0x02000000;
- u32 ctrl, timeout;
-
- /* wait up to 1ms for any previous transaction to be done... */
- timeout = 1000;
- do {
- ctrl = nv_rd32(dev, 0x00e4e4 + (ch * 0x50));
- udelay(1);
- if (!timeout--) {
- AUX_ERR("begin idle timeout 0x%08x", ctrl);
- return -EBUSY;
- }
- } while (ctrl & 0x03010000);
-
- /* set some magic, and wait up to 1ms for it to appear */
- nv_mask(dev, 0x00e4e4 + (ch * 0x50), 0x00300000, ureq);
- timeout = 1000;
- do {
- ctrl = nv_rd32(dev, 0x00e4e4 + (ch * 0x50));
- udelay(1);
- if (!timeout--) {
- AUX_ERR("magic wait 0x%08x\n", ctrl);
- auxch_fini(dev, ch);
- return -EBUSY;
- }
- } while ((ctrl & 0x03000000) != urep);
-
- return 0;
-}
-
-static int
-auxch_tx(struct drm_device *dev, int ch, u8 type, u32 addr, u8 *data, u8 size)
-{
- u32 ctrl, stat, timeout, retries;
- u32 xbuf[4] = {};
- int ret, i;
-
- AUX_DBG("%d: 0x%08x %d\n", type, addr, size);
-
- ret = auxch_init(dev, ch);
- if (ret)
- goto out;
-
- stat = nv_rd32(dev, 0x00e4e8 + (ch * 0x50));
- if (!(stat & 0x10000000)) {
- AUX_DBG("sink not detected\n");
- ret = -ENXIO;
- goto out;
- }
-
- if (!(type & 1)) {
- memcpy(xbuf, data, size);
- for (i = 0; i < 16; i += 4) {
- AUX_DBG("wr 0x%08x\n", xbuf[i / 4]);
- nv_wr32(dev, 0x00e4c0 + (ch * 0x50) + i, xbuf[i / 4]);
- }
- }
-
- ctrl = nv_rd32(dev, 0x00e4e4 + (ch * 0x50));
- ctrl &= ~0x0001f0ff;
- ctrl |= type << 12;
- ctrl |= size - 1;
- nv_wr32(dev, 0x00e4e0 + (ch * 0x50), addr);
-
- /* retry transaction a number of times on failure... */
- ret = -EREMOTEIO;
- for (retries = 0; retries < 32; retries++) {
- /* reset, and delay a while if this is a retry */
- nv_wr32(dev, 0x00e4e4 + (ch * 0x50), 0x80000000 | ctrl);
- nv_wr32(dev, 0x00e4e4 + (ch * 0x50), 0x00000000 | ctrl);
- if (retries)
- udelay(400);
-
- /* transaction request, wait up to 1ms for it to complete */
- nv_wr32(dev, 0x00e4e4 + (ch * 0x50), 0x00010000 | ctrl);
-
- timeout = 1000;
- do {
- ctrl = nv_rd32(dev, 0x00e4e4 + (ch * 0x50));
- udelay(1);
- if (!timeout--) {
- AUX_ERR("tx req timeout 0x%08x\n", ctrl);
- goto out;
- }
- } while (ctrl & 0x00010000);
-
- /* read status, and check if transaction completed ok */
- stat = nv_mask(dev, 0x00e4e8 + (ch * 0x50), 0, 0);
- if (!(stat & 0x000f0f00)) {
- ret = 0;
- break;
- }
-
- AUX_DBG("%02d 0x%08x 0x%08x\n", retries, ctrl, stat);
- }
-
- if (type & 1) {
- for (i = 0; i < 16; i += 4) {
- xbuf[i / 4] = nv_rd32(dev, 0x00e4d0 + (ch * 0x50) + i);
- AUX_DBG("rd 0x%08x\n", xbuf[i / 4]);
- }
- memcpy(data, xbuf, size);
- }
-
-out:
- auxch_fini(dev, ch);
- return ret;
-}
-
-static u32
-dp_link_bw_get(struct drm_device *dev, int or, int link)
-{
- u32 ctrl = nv_rd32(dev, 0x614300 + (or * 0x800));
- if (!(ctrl & 0x000c0000))
- return 162000;
- return 270000;
-}
-
-static int
-dp_lane_count_get(struct drm_device *dev, int or, int link)
-{
- u32 ctrl = nv_rd32(dev, NV50_SOR_DP_CTRL(or, link));
- switch (ctrl & 0x000f0000) {
- case 0x00010000: return 1;
- case 0x00030000: return 2;
- default:
- return 4;
- }
-}
-
-void
-nouveau_dp_tu_update(struct drm_device *dev, int or, int link, u32 clk, u32 bpp)
-{
- const u32 symbol = 100000;
- int bestTU = 0, bestVTUi = 0, bestVTUf = 0, bestVTUa = 0;
- int TU, VTUi, VTUf, VTUa;
- u64 link_data_rate, link_ratio, unk;
- u32 best_diff = 64 * symbol;
- u32 link_nr, link_bw, r;
-
- /* calculate packed data rate for each lane */
- link_nr = dp_lane_count_get(dev, or, link);
- link_data_rate = (clk * bpp / 8) / link_nr;
-
- /* calculate ratio of packed data rate to link symbol rate */
- link_bw = dp_link_bw_get(dev, or, link);
- link_ratio = link_data_rate * symbol;
- r = do_div(link_ratio, link_bw);
-
- for (TU = 64; TU >= 32; TU--) {
- /* calculate average number of valid symbols in each TU */
- u32 tu_valid = link_ratio * TU;
- u32 calc, diff;
-
- /* find a hw representation for the fraction.. */
- VTUi = tu_valid / symbol;
- calc = VTUi * symbol;
- diff = tu_valid - calc;
- if (diff) {
- if (diff >= (symbol / 2)) {
- VTUf = symbol / (symbol - diff);
- if (symbol - (VTUf * diff))
- VTUf++;
-
- if (VTUf <= 15) {
- VTUa = 1;
- calc += symbol - (symbol / VTUf);
- } else {
- VTUa = 0;
- VTUf = 1;
- calc += symbol;
- }
- } else {
- VTUa = 0;
- VTUf = min((int)(symbol / diff), 15);
- calc += symbol / VTUf;
- }
-
- diff = calc - tu_valid;
- } else {
- /* no remainder, but the hw doesn't like the fractional
- * part to be zero. decrement the integer part and
- * have the fraction add a whole symbol back
- */
- VTUa = 0;
- VTUf = 1;
- VTUi--;
- }
-
- if (diff < best_diff) {
- best_diff = diff;
- bestTU = TU;
- bestVTUa = VTUa;
- bestVTUf = VTUf;
- bestVTUi = VTUi;
- if (diff == 0)
- break;
- }
- }
-
- if (!bestTU) {
- NV_ERROR(dev, "DP: unable to find suitable config\n");
- return;
- }
-
- /* XXX close to vbios numbers, but not right */
- unk = (symbol - link_ratio) * bestTU;
- unk *= link_ratio;
- r = do_div(unk, symbol);
- r = do_div(unk, symbol);
- unk += 6;
-
- nv_mask(dev, NV50_SOR_DP_CTRL(or, link), 0x000001fc, bestTU << 2);
- nv_mask(dev, NV50_SOR_DP_SCFG(or, link), 0x010f7f3f, bestVTUa << 24 |
- bestVTUf << 16 |
- bestVTUi << 8 |
- unk);
-}
-
-u8 *
-nouveau_dp_bios_data(struct drm_device *dev, struct dcb_entry *dcb, u8 **entry)
-{
- struct bit_entry d;
- u8 *table;
- int i;
-
- if (bit_table(dev, 'd', &d)) {
- NV_ERROR(dev, "BIT 'd' table not found\n");
- return NULL;
- }
-
- if (d.version != 1) {
- NV_ERROR(dev, "BIT 'd' table version %d unknown\n", d.version);
- return NULL;
- }
-
- table = ROMPTR(dev, d.data[0]);
- if (!table) {
- NV_ERROR(dev, "displayport table pointer invalid\n");
- return NULL;
- }
-
- switch (table[0]) {
- case 0x20:
- case 0x21:
- case 0x30:
- break;
- default:
- NV_ERROR(dev, "displayport table 0x%02x unknown\n", table[0]);
- return NULL;
- }
-
- for (i = 0; i < table[3]; i++) {
- *entry = ROMPTR(dev, table[table[1] + (i * table[2])]);
- if (*entry && bios_encoder_match(dcb, ROM32((*entry)[0])))
- return table;
- }
-
- NV_ERROR(dev, "displayport encoder table not found\n");
- return NULL;
-}
-
-/******************************************************************************
- * link training
- *****************************************************************************/
-struct dp_state {
- struct dcb_entry *dcb;
- u8 *table;
- u8 *entry;
- int auxch;
- int crtc;
- int or;
- int link;
- u8 *dpcd;
- int link_nr;
- u32 link_bw;
- u8 stat[6];
- u8 conf[4];
-};
+#include <subdev/gpio.h>
+#include <subdev/i2c.h>
static void
-dp_set_link_config(struct drm_device *dev, struct dp_state *dp)
-{
- int or = dp->or, link = dp->link;
- u8 *entry, sink[2];
- u32 dp_ctrl;
- u16 script;
-
- NV_DEBUG_KMS(dev, "%d lanes at %d KB/s\n", dp->link_nr, dp->link_bw);
-
- /* set selected link rate on source */
- switch (dp->link_bw) {
- case 270000:
- nv_mask(dev, 0x614300 + (or * 0x800), 0x000c0000, 0x00040000);
- sink[0] = DP_LINK_BW_2_7;
- break;
- default:
- nv_mask(dev, 0x614300 + (or * 0x800), 0x000c0000, 0x00000000);
- sink[0] = DP_LINK_BW_1_62;
- break;
- }
-
- /* offset +0x0a of each dp encoder table entry is a pointer to another
- * table, that has (among other things) pointers to more scripts that
- * need to be executed, this time depending on link speed.
- */
- entry = ROMPTR(dev, dp->entry[10]);
- if (entry) {
- if (dp->table[0] < 0x30) {
- while (dp->link_bw < (ROM16(entry[0]) * 10))
- entry += 4;
- script = ROM16(entry[2]);
- } else {
- while (dp->link_bw < (entry[0] * 27000))
- entry += 3;
- script = ROM16(entry[1]);
- }
-
- nouveau_bios_run_init_table(dev, script, dp->dcb, dp->crtc);
- }
-
- /* configure lane count on the source */
- dp_ctrl = ((1 << dp->link_nr) - 1) << 16;
- sink[1] = dp->link_nr;
- if (dp->dpcd[2] & DP_ENHANCED_FRAME_CAP) {
- dp_ctrl |= 0x00004000;
- sink[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN;
- }
-
- nv_mask(dev, NV50_SOR_DP_CTRL(or, link), 0x001f4000, dp_ctrl);
-
- /* inform the sink of the new configuration */
- auxch_tx(dev, dp->auxch, 8, DP_LINK_BW_SET, sink, 2);
-}
-
-static void
-dp_set_training_pattern(struct drm_device *dev, struct dp_state *dp, u8 tp)
-{
- u8 sink_tp;
-
- NV_DEBUG_KMS(dev, "training pattern %d\n", tp);
-
- nv_mask(dev, NV50_SOR_DP_CTRL(dp->or, dp->link), 0x0f000000, tp << 24);
-
- auxch_tx(dev, dp->auxch, 9, DP_TRAINING_PATTERN_SET, &sink_tp, 1);
- sink_tp &= ~DP_TRAINING_PATTERN_MASK;
- sink_tp |= tp;
- auxch_tx(dev, dp->auxch, 8, DP_TRAINING_PATTERN_SET, &sink_tp, 1);
-}
-
-static const u8 nv50_lane_map[] = { 16, 8, 0, 24 };
-static const u8 nvaf_lane_map[] = { 24, 16, 8, 0 };
-
-static int
-dp_link_train_commit(struct drm_device *dev, struct dp_state *dp)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- u32 mask = 0, drv = 0, pre = 0, unk = 0;
- const u8 *shifts;
- int link = dp->link;
- int or = dp->or;
- int i;
-
- if (dev_priv->chipset != 0xaf)
- shifts = nv50_lane_map;
- else
- shifts = nvaf_lane_map;
-
- for (i = 0; i < dp->link_nr; i++) {
- u8 *conf = dp->entry + dp->table[4];
- u8 lane = (dp->stat[4 + (i >> 1)] >> ((i & 1) * 4)) & 0xf;
- u8 lpre = (lane & 0x0c) >> 2;
- u8 lvsw = (lane & 0x03) >> 0;
-
- mask |= 0xff << shifts[i];
- unk |= 1 << (shifts[i] >> 3);
-
- dp->conf[i] = (lpre << 3) | lvsw;
- if (lvsw == DP_TRAIN_VOLTAGE_SWING_1200)
- dp->conf[i] |= DP_TRAIN_MAX_SWING_REACHED;
- if (lpre == DP_TRAIN_PRE_EMPHASIS_9_5)
- dp->conf[i] |= DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
-
- NV_DEBUG_KMS(dev, "config lane %d %02x\n", i, dp->conf[i]);
-
- if (dp->table[0] < 0x30) {
- u8 *last = conf + (dp->entry[4] * dp->table[5]);
- while (lvsw != conf[0] || lpre != conf[1]) {
- conf += dp->table[5];
- if (conf >= last)
- return -EINVAL;
- }
-
- conf += 2;
- } else {
- /* no lookup table anymore, set entries for each
- * combination of voltage swing and pre-emphasis
- * level allowed by the DP spec.
- */
- switch (lvsw) {
- case 0: lpre += 0; break;
- case 1: lpre += 4; break;
- case 2: lpre += 7; break;
- case 3: lpre += 9; break;
- }
-
- conf = conf + (lpre * dp->table[5]);
- conf++;
- }
-
- drv |= conf[0] << shifts[i];
- pre |= conf[1] << shifts[i];
- unk = (unk & ~0x0000ff00) | (conf[2] << 8);
- }
-
- nv_mask(dev, NV50_SOR_DP_UNK118(or, link), mask, drv);
- nv_mask(dev, NV50_SOR_DP_UNK120(or, link), mask, pre);
- nv_mask(dev, NV50_SOR_DP_UNK130(or, link), 0x0000ff0f, unk);
-
- return auxch_tx(dev, dp->auxch, 8, DP_TRAINING_LANE0_SET, dp->conf, 4);
-}
-
-static int
-dp_link_train_update(struct drm_device *dev, struct dp_state *dp, u32 delay)
-{
- int ret;
-
- udelay(delay);
-
- ret = auxch_tx(dev, dp->auxch, 9, DP_LANE0_1_STATUS, dp->stat, 6);
- if (ret)
- return ret;
-
- NV_DEBUG_KMS(dev, "status %02x %02x %02x %02x %02x %02x\n",
- dp->stat[0], dp->stat[1], dp->stat[2], dp->stat[3],
- dp->stat[4], dp->stat[5]);
- return 0;
-}
-
-static int
-dp_link_train_cr(struct drm_device *dev, struct dp_state *dp)
+nouveau_dp_probe_oui(struct drm_device *dev, struct nouveau_i2c_port *auxch,
+ u8 *dpcd)
{
- bool cr_done = false, abort = false;
- int voltage = dp->conf[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
- int tries = 0, i;
-
- dp_set_training_pattern(dev, dp, DP_TRAINING_PATTERN_1);
-
- do {
- if (dp_link_train_commit(dev, dp) ||
- dp_link_train_update(dev, dp, 100))
- break;
-
- cr_done = true;
- for (i = 0; i < dp->link_nr; i++) {
- u8 lane = (dp->stat[i >> 1] >> ((i & 1) * 4)) & 0xf;
- if (!(lane & DP_LANE_CR_DONE)) {
- cr_done = false;
- if (dp->conf[i] & DP_TRAIN_MAX_SWING_REACHED)
- abort = true;
- break;
- }
- }
-
- if ((dp->conf[0] & DP_TRAIN_VOLTAGE_SWING_MASK) != voltage) {
- voltage = dp->conf[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
- tries = 0;
- }
- } while (!cr_done && !abort && ++tries < 5);
-
- return cr_done ? 0 : -1;
-}
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ u8 buf[3];
-static int
-dp_link_train_eq(struct drm_device *dev, struct dp_state *dp)
-{
- bool eq_done, cr_done = true;
- int tries = 0, i;
-
- dp_set_training_pattern(dev, dp, DP_TRAINING_PATTERN_2);
-
- do {
- if (dp_link_train_update(dev, dp, 400))
- break;
-
- eq_done = !!(dp->stat[2] & DP_INTERLANE_ALIGN_DONE);
- for (i = 0; i < dp->link_nr && eq_done; i++) {
- u8 lane = (dp->stat[i >> 1] >> ((i & 1) * 4)) & 0xf;
- if (!(lane & DP_LANE_CR_DONE))
- cr_done = false;
- if (!(lane & DP_LANE_CHANNEL_EQ_DONE) ||
- !(lane & DP_LANE_SYMBOL_LOCKED))
- eq_done = false;
- }
-
- if (dp_link_train_commit(dev, dp))
- break;
- } while (!eq_done && cr_done && ++tries <= 5);
-
- return eq_done ? 0 : -1;
-}
-
-bool
-nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
-{
- struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
- struct nouveau_connector *nv_connector =
- nouveau_encoder_connector_get(nv_encoder);
- struct drm_device *dev = encoder->dev;
- struct nouveau_i2c_chan *auxch;
- const u32 bw_list[] = { 270000, 162000, 0 };
- const u32 *link_bw = bw_list;
- struct dp_state dp;
-
- auxch = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
- if (!auxch)
- return false;
-
- dp.table = nouveau_dp_bios_data(dev, nv_encoder->dcb, &dp.entry);
- if (!dp.table)
- return -EINVAL;
-
- dp.dcb = nv_encoder->dcb;
- dp.crtc = nv_crtc->index;
- dp.auxch = auxch->drive;
- dp.or = nv_encoder->or;
- dp.link = !(nv_encoder->dcb->sorconf.link & 1);
- dp.dpcd = nv_encoder->dp.dpcd;
-
- /* some sinks toggle hotplug in response to some of the actions
- * we take during link training (DP_SET_POWER is one), we need
- * to ignore them for the moment to avoid races.
- */
- nouveau_gpio_irq(dev, 0, nv_connector->hpd, 0xff, false);
-
- /* enable down-spreading, if possible */
- if (dp.table[1] >= 16) {
- u16 script = ROM16(dp.entry[14]);
- if (nv_encoder->dp.dpcd[3] & 1)
- script = ROM16(dp.entry[12]);
-
- nouveau_bios_run_init_table(dev, script, dp.dcb, dp.crtc);
- }
-
- /* execute pre-train script from vbios */
- nouveau_bios_run_init_table(dev, ROM16(dp.entry[6]), dp.dcb, dp.crtc);
-
- /* start off at highest link rate supported by encoder and display */
- while (*link_bw > nv_encoder->dp.link_bw)
- link_bw++;
-
- while (link_bw[0]) {
- /* find minimum required lane count at this link rate */
- dp.link_nr = nv_encoder->dp.link_nr;
- while ((dp.link_nr >> 1) * link_bw[0] > datarate)
- dp.link_nr >>= 1;
-
- /* drop link rate to minimum with this lane count */
- while ((link_bw[1] * dp.link_nr) > datarate)
- link_bw++;
- dp.link_bw = link_bw[0];
-
- /* program selected link configuration */
- dp_set_link_config(dev, &dp);
-
- /* attempt to train the link at this configuration */
- memset(dp.stat, 0x00, sizeof(dp.stat));
- if (!dp_link_train_cr(dev, &dp) &&
- !dp_link_train_eq(dev, &dp))
- break;
-
- /* retry at lower rate */
- link_bw++;
- }
+ if (!(dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))
+ return;
- /* finish link training */
- dp_set_training_pattern(dev, &dp, DP_TRAINING_PATTERN_DISABLE);
+ if (!nv_rdaux(auxch, DP_SINK_OUI, buf, 3))
+ NV_DEBUG(drm, "Sink OUI: %02hx%02hx%02hx\n",
+ buf[0], buf[1], buf[2]);
- /* execute post-train script from vbios */
- nouveau_bios_run_init_table(dev, ROM16(dp.entry[8]), dp.dcb, dp.crtc);
+ if (!nv_rdaux(auxch, DP_BRANCH_OUI, buf, 3))
+ NV_DEBUG(drm, "Branch OUI: %02hx%02hx%02hx\n",
+ buf[0], buf[1], buf[2]);
- /* re-enable hotplug detect */
- nouveau_gpio_irq(dev, 0, nv_connector->hpd, 0xff, true);
- return true;
}
-bool
-nouveau_dp_detect(struct drm_encoder *encoder)
+int
+nouveau_dp_detect(struct nouveau_encoder *nv_encoder)
{
- struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct drm_device *dev = encoder->dev;
- struct nouveau_i2c_chan *auxch;
+ struct drm_device *dev = nv_encoder->base.base.dev;
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ struct nouveau_i2c_port *auxch;
u8 *dpcd = nv_encoder->dp.dpcd;
int ret;
- auxch = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
+ auxch = nv_encoder->i2c;
if (!auxch)
- return false;
+ return -ENODEV;
- ret = auxch_tx(dev, auxch->drive, 9, DP_DPCD_REV, dpcd, 8);
+ ret = nv_rdaux(auxch, DP_DPCD_REV, dpcd, 8);
if (ret)
- return false;
+ return ret;
nv_encoder->dp.link_bw = 27000 * dpcd[1];
nv_encoder->dp.link_nr = dpcd[2] & DP_MAX_LANE_COUNT_MASK;
- NV_DEBUG_KMS(dev, "display: %dx%d dpcd 0x%02x\n",
+ NV_DEBUG(drm, "display: %dx%d dpcd 0x%02x\n",
nv_encoder->dp.link_nr, nv_encoder->dp.link_bw, dpcd[0]);
- NV_DEBUG_KMS(dev, "encoder: %dx%d\n",
+ NV_DEBUG(drm, "encoder: %dx%d\n",
nv_encoder->dcb->dpconf.link_nr,
nv_encoder->dcb->dpconf.link_bw);
@@ -670,63 +86,9 @@ nouveau_dp_detect(struct drm_encoder *encoder)
if (nv_encoder->dcb->dpconf.link_bw < nv_encoder->dp.link_bw)
nv_encoder->dp.link_bw = nv_encoder->dcb->dpconf.link_bw;
- NV_DEBUG_KMS(dev, "maximum: %dx%d\n",
+ NV_DEBUG(drm, "maximum: %dx%d\n",
nv_encoder->dp.link_nr, nv_encoder->dp.link_bw);
- return true;
-}
-
-int
-nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
- uint8_t *data, int data_nr)
-{
- return auxch_tx(auxch->dev, auxch->drive, cmd, addr, data, data_nr);
-}
-
-static int
-nouveau_dp_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
-{
- struct nouveau_i2c_chan *auxch = (struct nouveau_i2c_chan *)adap;
- struct i2c_msg *msg = msgs;
- int ret, mcnt = num;
-
- while (mcnt--) {
- u8 remaining = msg->len;
- u8 *ptr = msg->buf;
-
- while (remaining) {
- u8 cnt = (remaining > 16) ? 16 : remaining;
- u8 cmd;
-
- if (msg->flags & I2C_M_RD)
- cmd = AUX_I2C_READ;
- else
- cmd = AUX_I2C_WRITE;
-
- if (mcnt || remaining > 16)
- cmd |= AUX_I2C_MOT;
-
- ret = nouveau_dp_auxch(auxch, cmd, msg->addr, ptr, cnt);
- if (ret < 0)
- return ret;
-
- ptr += cnt;
- remaining -= cnt;
- }
-
- msg++;
- }
-
- return num;
-}
-
-static u32
-nouveau_dp_i2c_func(struct i2c_adapter *adap)
-{
- return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+ nouveau_dp_probe_oui(dev, auxch, dpcd);
+ return 0;
}
-
-const struct i2c_algorithm nouveau_dp_i2c_algo = {
- .master_xfer = nouveau_dp_i2c_xfer,
- .functionality = nouveau_dp_i2c_func
-};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 19:04:41 +0000