diff options
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi.c | 29 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi.h | 14 |
2 files changed, 28 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 604fa6cee28..fabbf0d895c 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -157,7 +157,8 @@ static void intel_dsi_enable(struct intel_encoder *encoder) msleep(100); /* assert ip_tg_enable signal */ - temp = I915_READ(MIPI_PORT_CTRL(pipe)); + temp = I915_READ(MIPI_PORT_CTRL(pipe)) & ~LANE_CONFIGURATION_MASK; + temp = temp | intel_dsi->port_bits; I915_WRITE(MIPI_PORT_CTRL(pipe), temp | DPI_ENABLE); POSTING_READ(MIPI_PORT_CTRL(pipe)); } @@ -391,11 +392,7 @@ static void intel_dsi_mode_set(struct intel_encoder *intel_encoder) I915_WRITE(MIPI_INTR_STAT(pipe), 0xffffffff); I915_WRITE(MIPI_INTR_EN(pipe), 0xffffffff); - I915_WRITE(MIPI_DPHY_PARAM(pipe), - 0x3c << EXIT_ZERO_COUNT_SHIFT | - 0x1f << TRAIL_COUNT_SHIFT | - 0xc5 << CLK_ZERO_COUNT_SHIFT | - 0x1f << PREPARE_COUNT_SHIFT); + I915_WRITE(MIPI_DPHY_PARAM(pipe), intel_dsi->dphy_reg); I915_WRITE(MIPI_DPI_RESOLUTION(pipe), adjusted_mode->vdisplay << VERTICAL_ADDRESS_SHIFT | @@ -443,9 +440,9 @@ static void intel_dsi_mode_set(struct intel_encoder *intel_encoder) adjusted_mode->htotal, bpp, intel_dsi->lane_count) + 1); } - I915_WRITE(MIPI_LP_RX_TIMEOUT(pipe), 8309); /* max */ - I915_WRITE(MIPI_TURN_AROUND_TIMEOUT(pipe), 0x14); /* max */ - I915_WRITE(MIPI_DEVICE_RESET_TIMER(pipe), 0xffff); /* max */ + I915_WRITE(MIPI_LP_RX_TIMEOUT(pipe), intel_dsi->lp_rx_timeout); + I915_WRITE(MIPI_TURN_AROUND_TIMEOUT(pipe), intel_dsi->turn_arnd_val); + I915_WRITE(MIPI_DEVICE_RESET_TIMER(pipe), intel_dsi->rst_timer_val); /* dphy stuff */ @@ -460,29 +457,31 @@ static void intel_dsi_mode_set(struct intel_encoder *intel_encoder) * * XXX: write MIPI_STOP_STATE_STALL? */ - I915_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT(pipe), 0x46); + I915_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT(pipe), + intel_dsi->hs_to_lp_count); /* XXX: low power clock equivalence in terms of byte clock. the number * of byte clocks occupied in one low power clock. based on txbyteclkhs * and txclkesc. txclkesc time / txbyteclk time * (105 + * MIPI_STOP_STATE_STALL) / 105.??? */ - I915_WRITE(MIPI_LP_BYTECLK(pipe), 4); + I915_WRITE(MIPI_LP_BYTECLK(pipe), intel_dsi->lp_byte_clk); /* the bw essential for transmitting 16 long packets containing 252 * bytes meant for dcs write memory command is programmed in this * register in terms of byte clocks. based on dsi transfer rate and the * number of lanes configured the time taken to transmit 16 long packets * in a dsi stream varies. */ - I915_WRITE(MIPI_DBI_BW_CTRL(pipe), 0x820); + I915_WRITE(MIPI_DBI_BW_CTRL(pipe), intel_dsi->bw_timer); I915_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT(pipe), - 0xa << LP_HS_SSW_CNT_SHIFT | - 0x14 << HS_LP_PWR_SW_CNT_SHIFT); + intel_dsi->clk_lp_to_hs_count << LP_HS_SSW_CNT_SHIFT | + intel_dsi->clk_hs_to_lp_count << HS_LP_PWR_SW_CNT_SHIFT); if (is_vid_mode(intel_dsi)) I915_WRITE(MIPI_VIDEO_MODE_FORMAT(pipe), - intel_dsi->video_mode_format); + intel_dsi->video_frmt_cfg_bits | + intel_dsi->video_mode_format); } static enum drm_connector_status diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h index 387dfe13cd9..b4a27cec882 100644 --- a/drivers/gpu/drm/i915/intel_dsi.h +++ b/drivers/gpu/drm/i915/intel_dsi.h @@ -96,6 +96,20 @@ struct intel_dsi { /* eot for MIPI_EOT_DISABLE register */ u32 eot_disable; + + u32 port_bits; + u32 bw_timer; + u32 dphy_reg; + u32 video_frmt_cfg_bits; + u16 lp_byte_clk; + + /* timeouts in byte clocks */ + u16 lp_rx_timeout; + u16 turn_arnd_val; + u16 rst_timer_val; + u16 hs_to_lp_count; + u16 clk_lp_to_hs_count; + u16 clk_hs_to_lp_count; }; static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder) |