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@@ -18,12 +18,12 @@
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#define AUX_CH_NAME_BUFSIZE 6
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static const char *aux_ch_name(struct drm_i915_private *i915,
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static const char *aux_ch_name(struct intel_display *display,
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char *buf, int size, enum aux_ch aux_ch)
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{
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if (DISPLAY_VER(i915) >= 13 && aux_ch >= AUX_CH_D_XELPD)
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if (DISPLAY_VER(display) >= 13 && aux_ch >= AUX_CH_D_XELPD)
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snprintf(buf, size, "%c", 'A' + aux_ch - AUX_CH_D_XELPD + AUX_CH_D);
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else if (DISPLAY_VER(i915) >= 12 && aux_ch >= AUX_CH_USBC1)
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else if (DISPLAY_VER(display) >= 12 && aux_ch >= AUX_CH_USBC1)
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snprintf(buf, size, "USBC%c", '1' + aux_ch - AUX_CH_USBC1);
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else
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snprintf(buf, size, "%c", 'A' + aux_ch);
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@@ -56,17 +56,18 @@ static void intel_dp_aux_unpack(u32 src, u8 *dst, int dst_bytes)
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static u32
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intel_dp_aux_wait_done(struct intel_dp *intel_dp)
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{
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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struct intel_display *display = to_intel_display(intel_dp);
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i915_reg_t ch_ctl = intel_dp->aux_ch_ctl_reg(intel_dp);
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const unsigned int timeout_ms = 10;
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u32 status;
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int ret;
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ret = intel_de_wait_custom(i915, ch_ctl, DP_AUX_CH_CTL_SEND_BUSY, 0,
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ret = intel_de_wait_custom(display, ch_ctl, DP_AUX_CH_CTL_SEND_BUSY,
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0,
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2, timeout_ms, &status);
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if (ret == -ETIMEDOUT)
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drm_err(&i915->drm,
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drm_err(display->drm,
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"%s: did not complete or timeout within %ums (status 0x%08x)\n",
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intel_dp->aux.name, timeout_ms, status);
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@@ -75,7 +76,7 @@ intel_dp_aux_wait_done(struct intel_dp *intel_dp)
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static u32 g4x_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
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{
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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struct intel_display *display = to_intel_display(intel_dp);
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if (index)
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return 0;
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@@ -84,12 +85,12 @@ static u32 g4x_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
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* The clock divider is based off the hrawclk, and would like to run at
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* 2MHz. So, take the hrawclk value and divide by 2000 and use that
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*/
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return DIV_ROUND_CLOSEST(DISPLAY_RUNTIME_INFO(i915)->rawclk_freq, 2000);
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return DIV_ROUND_CLOSEST(DISPLAY_RUNTIME_INFO(display)->rawclk_freq, 2000);
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}
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static u32 ilk_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
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{
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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struct intel_display *display = to_intel_display(intel_dp);
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struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
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u32 freq;
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@@ -102,15 +103,16 @@ static u32 ilk_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
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* divide by 2000 and use that
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*/
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if (dig_port->aux_ch == AUX_CH_A)
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freq = i915->display.cdclk.hw.cdclk;
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freq = display->cdclk.hw.cdclk;
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else
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freq = DISPLAY_RUNTIME_INFO(i915)->rawclk_freq;
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freq = DISPLAY_RUNTIME_INFO(display)->rawclk_freq;
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return DIV_ROUND_CLOSEST(freq, 2000);
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}
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static u32 hsw_get_aux_clock_divider(struct intel_dp *intel_dp, int index)
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{
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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struct intel_display *display = to_intel_display(intel_dp);
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struct drm_i915_private *i915 = to_i915(display->drm);
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struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
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if (dig_port->aux_ch != AUX_CH_A && HAS_PCH_LPT_H(i915)) {
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@@ -201,8 +203,8 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
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int send_bytes,
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u32 unused)
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{
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struct intel_display *display = to_intel_display(intel_dp);
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struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
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struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
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u32 ret;
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/*
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@@ -227,7 +229,7 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
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* Power request bit is already set during aux power well enable.
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* Preserve the bit across aux transactions.
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*/
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if (DISPLAY_VER(i915) >= 14)
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if (DISPLAY_VER(display) >= 14)
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ret |= XELPDP_DP_AUX_CH_CTL_POWER_REQUEST;
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return ret;
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@@ -239,6 +241,7 @@ intel_dp_aux_xfer(struct intel_dp *intel_dp,
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u8 *recv, int recv_size,
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u32 aux_send_ctl_flags)
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{
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struct intel_display *display = to_intel_display(intel_dp);
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struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
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struct intel_encoder *encoder = &dig_port->base;
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struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
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@@ -297,7 +300,7 @@ intel_dp_aux_xfer(struct intel_dp *intel_dp,
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/* Try to wait for any previous AUX channel activity */
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for (try = 0; try < 3; try++) {
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status = intel_de_read_notrace(i915, ch_ctl);
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status = intel_de_read_notrace(display, ch_ctl);
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if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0)
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break;
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msleep(1);
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@@ -306,10 +309,10 @@ intel_dp_aux_xfer(struct intel_dp *intel_dp,
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trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
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if (try == 3) {
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const u32 status = intel_de_read(i915, ch_ctl);
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const u32 status = intel_de_read(display, ch_ctl);
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if (status != intel_dp->aux_busy_last_status) {
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drm_WARN(&i915->drm, 1,
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drm_WARN(display->drm, 1,
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"%s: not started (status 0x%08x)\n",
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intel_dp->aux.name, status);
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intel_dp->aux_busy_last_status = status;
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@@ -320,7 +323,7 @@ intel_dp_aux_xfer(struct intel_dp *intel_dp,
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}
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/* Only 5 data registers! */
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if (drm_WARN_ON(&i915->drm, send_bytes > 20 || recv_size > 20)) {
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if (drm_WARN_ON(display->drm, send_bytes > 20 || recv_size > 20)) {
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ret = -E2BIG;
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goto out;
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}
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@@ -336,17 +339,17 @@ intel_dp_aux_xfer(struct intel_dp *intel_dp,
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for (try = 0; try < 5; try++) {
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/* Load the send data into the aux channel data registers */
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for (i = 0; i < send_bytes; i += 4)
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intel_de_write(i915, ch_data[i >> 2],
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intel_de_write(display, ch_data[i >> 2],
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intel_dp_aux_pack(send + i,
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send_bytes - i));
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/* Send the command and wait for it to complete */
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intel_de_write(i915, ch_ctl, send_ctl);
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intel_de_write(display, ch_ctl, send_ctl);
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status = intel_dp_aux_wait_done(intel_dp);
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/* Clear done status and any errors */
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intel_de_write(i915, ch_ctl,
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intel_de_write(display, ch_ctl,
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status | DP_AUX_CH_CTL_DONE |
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DP_AUX_CH_CTL_TIME_OUT_ERROR |
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DP_AUX_CH_CTL_RECEIVE_ERROR);
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@@ -370,7 +373,7 @@ intel_dp_aux_xfer(struct intel_dp *intel_dp,
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}
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if ((status & DP_AUX_CH_CTL_DONE) == 0) {
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drm_err(&i915->drm, "%s: not done (status 0x%08x)\n",
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drm_err(display->drm, "%s: not done (status 0x%08x)\n",
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intel_dp->aux.name, status);
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ret = -EBUSY;
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goto out;
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@@ -382,7 +385,7 @@ done:
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* not connected.
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*/
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if (status & DP_AUX_CH_CTL_RECEIVE_ERROR) {
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drm_err(&i915->drm, "%s: receive error (status 0x%08x)\n",
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drm_err(display->drm, "%s: receive error (status 0x%08x)\n",
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intel_dp->aux.name, status);
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ret = -EIO;
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goto out;
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@@ -393,7 +396,7 @@ done:
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* -- don't fill the kernel log with these
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*/
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if (status & DP_AUX_CH_CTL_TIME_OUT_ERROR) {
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drm_dbg_kms(&i915->drm, "%s: timeout (status 0x%08x)\n",
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drm_dbg_kms(display->drm, "%s: timeout (status 0x%08x)\n",
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intel_dp->aux.name, status);
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ret = -ETIMEDOUT;
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goto out;
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@@ -408,7 +411,7 @@ done:
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* drm layer takes care for the necessary retries.
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*/
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if (recv_bytes == 0 || recv_bytes > 20) {
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drm_dbg_kms(&i915->drm,
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drm_dbg_kms(display->drm,
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"%s: Forbidden recv_bytes = %d on aux transaction\n",
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intel_dp->aux.name, recv_bytes);
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ret = -EBUSY;
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@@ -419,7 +422,7 @@ done:
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recv_bytes = recv_size;
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for (i = 0; i < recv_bytes; i += 4)
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intel_dp_aux_unpack(intel_de_read(i915, ch_data[i >> 2]),
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intel_dp_aux_unpack(intel_de_read(display, ch_data[i >> 2]),
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recv + i, recv_bytes - i);
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ret = recv_bytes;
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@@ -468,7 +471,7 @@ static ssize_t
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intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
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{
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struct intel_dp *intel_dp = container_of(aux, struct intel_dp, aux);
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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struct intel_display *display = to_intel_display(intel_dp);
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u8 txbuf[20], rxbuf[20];
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size_t txsize, rxsize;
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u32 flags = intel_dp_aux_xfer_flags(msg);
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@@ -483,10 +486,10 @@ intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
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txsize = msg->size ? HEADER_SIZE + msg->size : BARE_ADDRESS_SIZE;
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rxsize = 2; /* 0 or 1 data bytes */
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if (drm_WARN_ON(&i915->drm, txsize > 20))
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if (drm_WARN_ON(display->drm, txsize > 20))
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return -E2BIG;
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drm_WARN_ON(&i915->drm, !msg->buffer != !msg->size);
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drm_WARN_ON(display->drm, !msg->buffer != !msg->size);
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if (msg->buffer)
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memcpy(txbuf + HEADER_SIZE, msg->buffer, msg->size);
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@@ -511,7 +514,7 @@ intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
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txsize = msg->size ? HEADER_SIZE : BARE_ADDRESS_SIZE;
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rxsize = msg->size + 1;
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if (drm_WARN_ON(&i915->drm, rxsize > 20))
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if (drm_WARN_ON(display->drm, rxsize > 20))
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return -E2BIG;
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ret = intel_dp_aux_xfer(intel_dp, txbuf, txsize,
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@@ -721,7 +724,7 @@ static i915_reg_t tgl_aux_data_reg(struct intel_dp *intel_dp, int index)
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static i915_reg_t xelpdp_aux_ctl_reg(struct intel_dp *intel_dp)
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{
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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struct intel_display *display = to_intel_display(intel_dp);
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struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
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enum aux_ch aux_ch = dig_port->aux_ch;
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@@ -732,16 +735,16 @@ static i915_reg_t xelpdp_aux_ctl_reg(struct intel_dp *intel_dp)
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case AUX_CH_USBC2:
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case AUX_CH_USBC3:
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case AUX_CH_USBC4:
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return XELPDP_DP_AUX_CH_CTL(i915, aux_ch);
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return XELPDP_DP_AUX_CH_CTL(display, aux_ch);
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default:
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MISSING_CASE(aux_ch);
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return XELPDP_DP_AUX_CH_CTL(i915, AUX_CH_A);
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return XELPDP_DP_AUX_CH_CTL(display, AUX_CH_A);
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}
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}
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static i915_reg_t xelpdp_aux_data_reg(struct intel_dp *intel_dp, int index)
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{
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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struct intel_display *display = to_intel_display(intel_dp);
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struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
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enum aux_ch aux_ch = dig_port->aux_ch;
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@@ -752,10 +755,10 @@ static i915_reg_t xelpdp_aux_data_reg(struct intel_dp *intel_dp, int index)
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case AUX_CH_USBC2:
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case AUX_CH_USBC3:
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case AUX_CH_USBC4:
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return XELPDP_DP_AUX_CH_DATA(i915, aux_ch, index);
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return XELPDP_DP_AUX_CH_DATA(display, aux_ch, index);
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default:
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MISSING_CASE(aux_ch);
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return XELPDP_DP_AUX_CH_DATA(i915, AUX_CH_A, index);
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return XELPDP_DP_AUX_CH_DATA(display, AUX_CH_A, index);
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}
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}
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@@ -769,19 +772,20 @@ void intel_dp_aux_fini(struct intel_dp *intel_dp)
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void intel_dp_aux_init(struct intel_dp *intel_dp)
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{
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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struct intel_display *display = to_intel_display(intel_dp);
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struct drm_i915_private *i915 = to_i915(display->drm);
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struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
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struct intel_encoder *encoder = &dig_port->base;
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enum aux_ch aux_ch = dig_port->aux_ch;
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char buf[AUX_CH_NAME_BUFSIZE];
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if (DISPLAY_VER(i915) >= 14) {
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if (DISPLAY_VER(display) >= 14) {
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intel_dp->aux_ch_ctl_reg = xelpdp_aux_ctl_reg;
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intel_dp->aux_ch_data_reg = xelpdp_aux_data_reg;
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} else if (DISPLAY_VER(i915) >= 12) {
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} else if (DISPLAY_VER(display) >= 12) {
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intel_dp->aux_ch_ctl_reg = tgl_aux_ctl_reg;
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intel_dp->aux_ch_data_reg = tgl_aux_data_reg;
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} else if (DISPLAY_VER(i915) >= 9) {
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} else if (DISPLAY_VER(display) >= 9) {
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intel_dp->aux_ch_ctl_reg = skl_aux_ctl_reg;
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intel_dp->aux_ch_data_reg = skl_aux_data_reg;
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} else if (HAS_PCH_SPLIT(i915)) {
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@@ -795,7 +799,7 @@ void intel_dp_aux_init(struct intel_dp *intel_dp)
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intel_dp->aux_ch_data_reg = g4x_aux_data_reg;
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}
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if (DISPLAY_VER(i915) >= 9)
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if (DISPLAY_VER(display) >= 9)
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intel_dp->get_aux_clock_divider = skl_get_aux_clock_divider;
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else if (IS_BROADWELL(i915) || IS_HASWELL(i915))
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intel_dp->get_aux_clock_divider = hsw_get_aux_clock_divider;
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@@ -804,17 +808,17 @@ void intel_dp_aux_init(struct intel_dp *intel_dp)
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else
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intel_dp->get_aux_clock_divider = g4x_get_aux_clock_divider;
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if (DISPLAY_VER(i915) >= 9)
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if (DISPLAY_VER(display) >= 9)
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intel_dp->get_aux_send_ctl = skl_get_aux_send_ctl;
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else
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intel_dp->get_aux_send_ctl = g4x_get_aux_send_ctl;
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intel_dp->aux.drm_dev = &i915->drm;
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intel_dp->aux.drm_dev = display->drm;
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drm_dp_aux_init(&intel_dp->aux);
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/* Failure to allocate our preferred name is not critical */
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intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX %s/%s",
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aux_ch_name(i915, buf, sizeof(buf), aux_ch),
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aux_ch_name(display, buf, sizeof(buf), aux_ch),
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encoder->base.name);
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intel_dp->aux.transfer = intel_dp_aux_transfer;
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@@ -823,10 +827,10 @@ void intel_dp_aux_init(struct intel_dp *intel_dp)
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static enum aux_ch default_aux_ch(struct intel_encoder *encoder)
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{
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struct drm_i915_private *i915 = to_i915(encoder->base.dev);
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struct intel_display *display = to_intel_display(encoder);
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/* SKL has DDI E but no AUX E */
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if (DISPLAY_VER(i915) == 9 && encoder->port == PORT_E)
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if (DISPLAY_VER(display) == 9 && encoder->port == PORT_E)
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return AUX_CH_A;
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return (enum aux_ch)encoder->port;
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@@ -836,10 +840,10 @@ static struct intel_encoder *
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get_encoder_by_aux_ch(struct intel_encoder *encoder,
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enum aux_ch aux_ch)
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{
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struct drm_i915_private *i915 = to_i915(encoder->base.dev);
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struct intel_display *display = to_intel_display(encoder);
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struct intel_encoder *other;
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for_each_intel_encoder(&i915->drm, other) {
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for_each_intel_encoder(display->drm, other) {
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if (other == encoder)
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continue;
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@@ -855,7 +859,7 @@ get_encoder_by_aux_ch(struct intel_encoder *encoder,
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enum aux_ch intel_dp_aux_ch(struct intel_encoder *encoder)
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|
{
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struct drm_i915_private *i915 = to_i915(encoder->base.dev);
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|
struct intel_display *display = to_intel_display(encoder);
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|
|
struct intel_encoder *other;
|
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|
|
|
const char *source;
|
|
|
|
|
enum aux_ch aux_ch;
|
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|
|
@@ -876,23 +880,23 @@ enum aux_ch intel_dp_aux_ch(struct intel_encoder *encoder)
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|
|
other = get_encoder_by_aux_ch(encoder, aux_ch);
|
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|
|
if (other) {
|
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|
|
drm_dbg_kms(&i915->drm,
|
|
|
|
|
drm_dbg_kms(display->drm,
|
|
|
|
|
"[ENCODER:%d:%s] AUX CH %s already claimed by [ENCODER:%d:%s]\n",
|
|
|
|
|
encoder->base.base.id, encoder->base.name,
|
|
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|
|
aux_ch_name(i915, buf, sizeof(buf), aux_ch),
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|
|
aux_ch_name(display, buf, sizeof(buf), aux_ch),
|
|
|
|
|
other->base.base.id, other->base.name);
|
|
|
|
|
return AUX_CH_NONE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
drm_dbg_kms(&i915->drm,
|
|
|
|
|
drm_dbg_kms(display->drm,
|
|
|
|
|
"[ENCODER:%d:%s] Using AUX CH %s (%s)\n",
|
|
|
|
|
encoder->base.base.id, encoder->base.name,
|
|
|
|
|
aux_ch_name(i915, buf, sizeof(buf), aux_ch), source);
|
|
|
|
|
aux_ch_name(display, buf, sizeof(buf), aux_ch), source);
|
|
|
|
|
|
|
|
|
|
return aux_ch;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void intel_dp_aux_irq_handler(struct drm_i915_private *i915)
|
|
|
|
|
void intel_dp_aux_irq_handler(struct intel_display *display)
|
|
|
|
|
{
|
|
|
|
|
wake_up_all(&i915->display.gmbus.wait_queue);
|
|
|
|
|
wake_up_all(&display->gmbus.wait_queue);
|
|
|
|
|
}
|
|
|
|
|