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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-25 11:48:26 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-25 11:48:26 -0800 |
commit | 4971f090aa7f6ce5daa094ce4334f6618f93a7eb (patch) | |
tree | 45d75782b7dedbec76a3ab82d2769f7707668071 /drivers/gpu/drm/i915/intel_dsi_vbt.c | |
parent | Merge tag 'platform-drivers-x86-v4.21-1' of git://git.infradead.org/linux-platform-drivers-x86 (diff) | |
parent | Merge tag 'vmwgfx-next-2018-12-13' of git://people.freedesktop.org/~thomash/linux into drm-next (diff) | |
download | linux-dev-4971f090aa7f6ce5daa094ce4334f6618f93a7eb.tar.xz linux-dev-4971f090aa7f6ce5daa094ce4334f6618f93a7eb.zip |
Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"Core:
- shared fencing staging removal
- drop transactional atomic helpers and move helpers to new location
- DP/MST atomic cleanup
- Leasing cleanups and drop EXPORT_SYMBOL
- Convert drivers to atomic helpers and generic fbdev.
- removed deprecated obj_ref/unref in favour of get/put
- Improve dumb callback documentation
- MODESET_LOCK_BEGIN/END helpers
panels:
- CDTech panels, Banana Pi Panel, DLC1010GIG,
- Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA,
- Himax HX8357D, simulated RTSM AEMv8.
- GPD Win2 panel
- AUO G101EVN010
vgem:
- render node support
ttm:
- move global init out of drivers
- fix LRU handling for ghost objects
- Support for simultaneous submissions to multiple engines
scheduler:
- timeout/fault handling changes to help GPU recovery
- helpers for hw with preemption support
i915:
- Scaler/Watermark fixes
- DP MST + powerwell fixes
- PSR fixes
- Break long get/put shmemfs pages
- Icelake fixes
- Icelake DSI video mode enablement
- Engine workaround improvements
amdgpu:
- freesync support
- GPU reset enabled on CI, VI, SOC15 dGPUs
- ABM support in DC
- KFD support for vega12/polaris12
- SDMA paging queue on vega
- More amdkfd code sharing
- DCC scanout on GFX9
- DC kerneldoc
- Updated SMU firmware for GFX8 chips
- XGMI PSP + hive reset support
- GPU reset
- DC trace support
- Powerplay updates for newer Polaris
- Cursor plane update fast path
- kfd dma-buf support
virtio-gpu:
- add EDID support
vmwgfx:
- pageflip with damage support
nouveau:
- Initial Turing TU104/TU106 modesetting support
msm:
- a2xx gpu support for apq8060 and imx5
- a2xx gpummu support
- mdp4 display support for apq8060
- DPU fixes and cleanups
- enhanced profiling support
- debug object naming interface
- get_iova/page pinning decoupling
tegra:
- Tegra194 host1x, VIC and display support enabled
- Audio over HDMI for Tegra186 and Tegra194
exynos:
- DMA/IOMMU refactoring
- plane alpha + blend mode support
- Color format fixes for mixer driver
rcar-du:
- R8A7744 and R8A77470 support
- R8A77965 LVDS support
imx:
- fbdev emulation fix
- multi-tiled scalling fixes
- SPDX identifiers
rockchip
- dw_hdmi support
- dw-mipi-dsi + dual dsi support
- mailbox read size fix
qxl:
- fix cursor pinning
vc4:
- YUV support (scaling + cursor)
v3d:
- enable TFU (Texture Formatting Unit)
mali-dp:
- add support for linear tiled formats
sun4i:
- Display Engine 3 support
- H6 DE3 mixer 0 support
- H6 display engine support
- dw-hdmi support
- H6 HDMI phy support
- implicit fence waiting
- BGRX8888 support
meson:
- Overlay plane support
- implicit fence waiting
- HDMI 1.4 4k modes
bridge:
- i2c fixes for sii902x"
* tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits)
drm/amd/display: Add fast path for cursor plane updates
drm/amdgpu: Enable GPU recovery by default for CI
drm/amd/display: Fix duplicating scaling/underscan connector state
drm/amd/display: Fix unintialized max_bpc state values
Revert "drm/amd/display: Set RMX_ASPECT as default"
drm/amdgpu: Fix stub function name
drm/msm/dpu: Fix clock issue after bind failure
drm/msm/dpu: Clean up dpu_media_info.h static inline functions
drm/msm/dpu: Further cleanups for static inline functions
drm/msm/dpu: Cleanup the debugfs functions
drm/msm/dpu: Remove dpu_irq and unused functions
drm/msm: Make irq_postinstall optional
drm/msm/dpu: Cleanup callers of dpu_hw_blk_init
drm/msm/dpu: Remove unused functions
drm/msm/dpu: Remove dpu_crtc_is_enabled()
drm/msm/dpu: Remove dpu_crtc_get_mixer_height
drm/msm/dpu: Remove dpu_dbg
drm/msm: dpu: Remove crtc_lock
drm/msm: dpu: Remove vblank_requested flag from dpu_crtc
drm/msm: dpu: Separate crtc assignment from vblank enable
...
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dsi_vbt.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_dsi_vbt.c | 306 |
1 files changed, 218 insertions, 88 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi_vbt.c b/drivers/gpu/drm/i915/intel_dsi_vbt.c index ac83d6b89ae0..a1a8b3790e61 100644 --- a/drivers/gpu/drm/i915/intel_dsi_vbt.c +++ b/drivers/gpu/drm/i915/intel_dsi_vbt.c @@ -103,6 +103,18 @@ static struct gpio_map vlv_gpio_table[] = { #define CHV_GPIO_PAD_CFG1(f, i) (0x4400 + (f) * 0x400 + (i) * 8 + 4) #define CHV_GPIO_CFGLOCK (1 << 31) +/* ICL DSI Display GPIO Pins */ +#define ICL_GPIO_DDSP_HPD_A 0 +#define ICL_GPIO_L_VDDEN_1 1 +#define ICL_GPIO_L_BKLTEN_1 2 +#define ICL_GPIO_DDPA_CTRLCLK_1 3 +#define ICL_GPIO_DDPA_CTRLDATA_1 4 +#define ICL_GPIO_DDSP_HPD_B 5 +#define ICL_GPIO_L_VDDEN_2 6 +#define ICL_GPIO_L_BKLTEN_2 7 +#define ICL_GPIO_DDPA_CTRLCLK_2 8 +#define ICL_GPIO_DDPA_CTRLDATA_2 9 + static inline enum port intel_dsi_seq_port_to_port(u8 port) { return port ? PORT_C : PORT_A; @@ -111,6 +123,7 @@ static inline enum port intel_dsi_seq_port_to_port(u8 port) static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, const u8 *data) { + struct drm_i915_private *dev_priv = to_i915(intel_dsi->base.base.dev); struct mipi_dsi_device *dsi_device; u8 type, flags, seq_port; u16 len; @@ -181,7 +194,8 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, break; } - vlv_dsi_wait_for_fifo_empty(intel_dsi, port); + if (!IS_ICELAKE(dev_priv)) + vlv_dsi_wait_for_fifo_empty(intel_dsi, port); out: data += len; @@ -322,6 +336,12 @@ static void bxt_exec_gpio(struct drm_i915_private *dev_priv, gpiod_set_value(gpio_desc, value); } +static void icl_exec_gpio(struct drm_i915_private *dev_priv, + u8 gpio_source, u8 gpio_index, bool value) +{ + DRM_DEBUG_KMS("Skipping ICL GPIO element execution\n"); +} + static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data) { struct drm_device *dev = intel_dsi->base.base.dev; @@ -345,7 +365,9 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data) /* pull up/down */ value = *data++ & 1; - if (IS_VALLEYVIEW(dev_priv)) + if (IS_ICELAKE(dev_priv)) + icl_exec_gpio(dev_priv, gpio_source, gpio_index, value); + else if (IS_VALLEYVIEW(dev_priv)) vlv_exec_gpio(dev_priv, gpio_source, gpio_number, value); else if (IS_CHERRYVIEW(dev_priv)) chv_exec_gpio(dev_priv, gpio_source, gpio_number, value); @@ -481,6 +503,17 @@ void intel_dsi_vbt_exec_sequence(struct intel_dsi *intel_dsi, } } +void intel_dsi_msleep(struct intel_dsi *intel_dsi, int msec) +{ + struct drm_i915_private *dev_priv = to_i915(intel_dsi->base.base.dev); + + /* For v3 VBTs in vid-mode the delays are part of the VBT sequences */ + if (is_vid_mode(intel_dsi) && dev_priv->vbt.dsi.seq_version >= 3) + return; + + msleep(msec); +} + int intel_dsi_vbt_get_modes(struct intel_dsi *intel_dsi) { struct intel_connector *connector = intel_dsi->attached_connector; @@ -499,110 +532,125 @@ int intel_dsi_vbt_get_modes(struct intel_dsi *intel_dsi) return 1; } -bool intel_dsi_vbt_init(struct intel_dsi *intel_dsi, u16 panel_id) +#define ICL_PREPARE_CNT_MAX 0x7 +#define ICL_CLK_ZERO_CNT_MAX 0xf +#define ICL_TRAIL_CNT_MAX 0x7 +#define ICL_TCLK_PRE_CNT_MAX 0x3 +#define ICL_TCLK_POST_CNT_MAX 0x7 +#define ICL_HS_ZERO_CNT_MAX 0xf +#define ICL_EXIT_ZERO_CNT_MAX 0x7 + +static void icl_dphy_param_init(struct intel_dsi *intel_dsi) { struct drm_device *dev = intel_dsi->base.base.dev; struct drm_i915_private *dev_priv = to_i915(dev); struct mipi_config *mipi_config = dev_priv->vbt.dsi.config; - struct mipi_pps_data *pps = dev_priv->vbt.dsi.pps; - struct drm_display_mode *mode = dev_priv->vbt.lfp_lvds_vbt_mode; - u32 bpp; - u32 tlpx_ns, extra_byte_count, bitrate, tlpx_ui; - u32 ui_num, ui_den; + u32 tlpx_ns; u32 prepare_cnt, exit_zero_cnt, clk_zero_cnt, trail_cnt; u32 ths_prepare_ns, tclk_trail_ns; - u32 tclk_prepare_clkzero, ths_prepare_hszero; - u32 lp_to_hs_switch, hs_to_lp_switch; - u32 pclk, computed_ddr; - u32 mul; - u16 burst_mode_ratio; - enum port port; - - DRM_DEBUG_KMS("\n"); - - intel_dsi->eotp_pkt = mipi_config->eot_pkt_disabled ? 0 : 1; - intel_dsi->clock_stop = mipi_config->enable_clk_stop ? 1 : 0; - intel_dsi->lane_count = mipi_config->lane_cnt + 1; - intel_dsi->pixel_format = - pixel_format_from_register_bits( - mipi_config->videomode_color_format << 7); - bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format); + u32 hs_zero_cnt; + u32 tclk_pre_cnt, tclk_post_cnt; - intel_dsi->dual_link = mipi_config->dual_link; - intel_dsi->pixel_overlap = mipi_config->pixel_overlap; - intel_dsi->operation_mode = mipi_config->is_cmd_mode; - intel_dsi->video_mode_format = mipi_config->video_transfer_mode; - intel_dsi->escape_clk_div = mipi_config->byte_clk_sel; - intel_dsi->lp_rx_timeout = mipi_config->lp_rx_timeout; - intel_dsi->turn_arnd_val = mipi_config->turn_around_timeout; - intel_dsi->rst_timer_val = mipi_config->device_reset_timer; - intel_dsi->init_count = mipi_config->master_init_timer; - intel_dsi->bw_timer = mipi_config->dbi_bw_timer; - intel_dsi->video_frmt_cfg_bits = - mipi_config->bta_enabled ? DISABLE_VIDEO_BTA : 0; + tlpx_ns = intel_dsi_tlpx_ns(intel_dsi); - pclk = mode->clock; + tclk_trail_ns = max(mipi_config->tclk_trail, mipi_config->ths_trail); + ths_prepare_ns = max(mipi_config->ths_prepare, + mipi_config->tclk_prepare); - /* In dual link mode each port needs half of pixel clock */ - if (intel_dsi->dual_link) { - pclk = pclk / 2; + /* + * prepare cnt in escape clocks + * this field represents a hexadecimal value with a precision + * of 1.2 – i.e. the most significant bit is the integer + * and the least significant 2 bits are fraction bits. + * so, the field can represent a range of 0.25 to 1.75 + */ + prepare_cnt = DIV_ROUND_UP(ths_prepare_ns * 4, tlpx_ns); + if (prepare_cnt > ICL_PREPARE_CNT_MAX) { + DRM_DEBUG_KMS("prepare_cnt out of range (%d)\n", prepare_cnt); + prepare_cnt = ICL_PREPARE_CNT_MAX; + } - /* we can enable pixel_overlap if needed by panel. In this - * case we need to increase the pixelclock for extra pixels - */ - if (intel_dsi->dual_link == DSI_DUAL_LINK_FRONT_BACK) { - pclk += DIV_ROUND_UP(mode->vtotal * - intel_dsi->pixel_overlap * - 60, 1000); - } + /* clk zero count in escape clocks */ + clk_zero_cnt = DIV_ROUND_UP(mipi_config->tclk_prepare_clkzero - + ths_prepare_ns, tlpx_ns); + if (clk_zero_cnt > ICL_CLK_ZERO_CNT_MAX) { + DRM_DEBUG_KMS("clk_zero_cnt out of range (%d)\n", clk_zero_cnt); + clk_zero_cnt = ICL_CLK_ZERO_CNT_MAX; } - /* Burst Mode Ratio - * Target ddr frequency from VBT / non burst ddr freq - * multiply by 100 to preserve remainder - */ - if (intel_dsi->video_mode_format == VIDEO_MODE_BURST) { - if (mipi_config->target_burst_mode_freq) { - computed_ddr = (pclk * bpp) / intel_dsi->lane_count; + /* trail cnt in escape clocks*/ + trail_cnt = DIV_ROUND_UP(tclk_trail_ns, tlpx_ns); + if (trail_cnt > ICL_TRAIL_CNT_MAX) { + DRM_DEBUG_KMS("trail_cnt out of range (%d)\n", trail_cnt); + trail_cnt = ICL_TRAIL_CNT_MAX; + } - if (mipi_config->target_burst_mode_freq < - computed_ddr) { - DRM_ERROR("Burst mode freq is less than computed\n"); - return false; - } + /* tclk pre count in escape clocks */ + tclk_pre_cnt = DIV_ROUND_UP(mipi_config->tclk_pre, tlpx_ns); + if (tclk_pre_cnt > ICL_TCLK_PRE_CNT_MAX) { + DRM_DEBUG_KMS("tclk_pre_cnt out of range (%d)\n", tclk_pre_cnt); + tclk_pre_cnt = ICL_TCLK_PRE_CNT_MAX; + } - burst_mode_ratio = DIV_ROUND_UP( - mipi_config->target_burst_mode_freq * 100, - computed_ddr); + /* tclk post count in escape clocks */ + tclk_post_cnt = DIV_ROUND_UP(mipi_config->tclk_post, tlpx_ns); + if (tclk_post_cnt > ICL_TCLK_POST_CNT_MAX) { + DRM_DEBUG_KMS("tclk_post_cnt out of range (%d)\n", tclk_post_cnt); + tclk_post_cnt = ICL_TCLK_POST_CNT_MAX; + } - pclk = DIV_ROUND_UP(pclk * burst_mode_ratio, 100); - } else { - DRM_ERROR("Burst mode target is not set\n"); - return false; - } - } else - burst_mode_ratio = 100; + /* hs zero cnt in escape clocks */ + hs_zero_cnt = DIV_ROUND_UP(mipi_config->ths_prepare_hszero - + ths_prepare_ns, tlpx_ns); + if (hs_zero_cnt > ICL_HS_ZERO_CNT_MAX) { + DRM_DEBUG_KMS("hs_zero_cnt out of range (%d)\n", hs_zero_cnt); + hs_zero_cnt = ICL_HS_ZERO_CNT_MAX; + } - intel_dsi->burst_mode_ratio = burst_mode_ratio; - intel_dsi->pclk = pclk; + /* hs exit zero cnt in escape clocks */ + exit_zero_cnt = DIV_ROUND_UP(mipi_config->ths_exit, tlpx_ns); + if (exit_zero_cnt > ICL_EXIT_ZERO_CNT_MAX) { + DRM_DEBUG_KMS("exit_zero_cnt out of range (%d)\n", exit_zero_cnt); + exit_zero_cnt = ICL_EXIT_ZERO_CNT_MAX; + } - bitrate = (pclk * bpp) / intel_dsi->lane_count; + /* clock lane dphy timings */ + intel_dsi->dphy_reg = (CLK_PREPARE_OVERRIDE | + CLK_PREPARE(prepare_cnt) | + CLK_ZERO_OVERRIDE | + CLK_ZERO(clk_zero_cnt) | + CLK_PRE_OVERRIDE | + CLK_PRE(tclk_pre_cnt) | + CLK_POST_OVERRIDE | + CLK_POST(tclk_post_cnt) | + CLK_TRAIL_OVERRIDE | + CLK_TRAIL(trail_cnt)); + + /* data lanes dphy timings */ + intel_dsi->dphy_data_lane_reg = (HS_PREPARE_OVERRIDE | + HS_PREPARE(prepare_cnt) | + HS_ZERO_OVERRIDE | + HS_ZERO(hs_zero_cnt) | + HS_TRAIL_OVERRIDE | + HS_TRAIL(trail_cnt) | + HS_EXIT_OVERRIDE | + HS_EXIT(exit_zero_cnt)); +} - switch (intel_dsi->escape_clk_div) { - case 0: - tlpx_ns = 50; - break; - case 1: - tlpx_ns = 100; - break; +static void vlv_dphy_param_init(struct intel_dsi *intel_dsi) +{ + struct drm_device *dev = intel_dsi->base.base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + struct mipi_config *mipi_config = dev_priv->vbt.dsi.config; + u32 tlpx_ns, extra_byte_count, tlpx_ui; + u32 ui_num, ui_den; + u32 prepare_cnt, exit_zero_cnt, clk_zero_cnt, trail_cnt; + u32 ths_prepare_ns, tclk_trail_ns; + u32 tclk_prepare_clkzero, ths_prepare_hszero; + u32 lp_to_hs_switch, hs_to_lp_switch; + u32 mul; - case 2: - tlpx_ns = 200; - break; - default: - tlpx_ns = 50; - break; - } + tlpx_ns = intel_dsi_tlpx_ns(intel_dsi); switch (intel_dsi->lane_count) { case 1: @@ -620,7 +668,7 @@ bool intel_dsi_vbt_init(struct intel_dsi *intel_dsi, u16 panel_id) /* in Kbps */ ui_num = NS_KHZ_RATIO; - ui_den = bitrate; + ui_den = intel_dsi_bitrate(intel_dsi); tclk_prepare_clkzero = mipi_config->tclk_prepare_clkzero; ths_prepare_hszero = mipi_config->ths_prepare_hszero; @@ -746,6 +794,88 @@ bool intel_dsi_vbt_init(struct intel_dsi *intel_dsi, u16 panel_id) DIV_ROUND_UP(2 * tlpx_ui + trail_cnt * 2 + 8, 8); intel_dsi->clk_hs_to_lp_count += extra_byte_count; +} + +bool intel_dsi_vbt_init(struct intel_dsi *intel_dsi, u16 panel_id) +{ + struct drm_device *dev = intel_dsi->base.base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + struct mipi_config *mipi_config = dev_priv->vbt.dsi.config; + struct mipi_pps_data *pps = dev_priv->vbt.dsi.pps; + struct drm_display_mode *mode = dev_priv->vbt.lfp_lvds_vbt_mode; + u16 burst_mode_ratio; + enum port port; + + DRM_DEBUG_KMS("\n"); + + intel_dsi->eotp_pkt = mipi_config->eot_pkt_disabled ? 0 : 1; + intel_dsi->clock_stop = mipi_config->enable_clk_stop ? 1 : 0; + intel_dsi->lane_count = mipi_config->lane_cnt + 1; + intel_dsi->pixel_format = + pixel_format_from_register_bits( + mipi_config->videomode_color_format << 7); + + intel_dsi->dual_link = mipi_config->dual_link; + intel_dsi->pixel_overlap = mipi_config->pixel_overlap; + intel_dsi->operation_mode = mipi_config->is_cmd_mode; + intel_dsi->video_mode_format = mipi_config->video_transfer_mode; + intel_dsi->escape_clk_div = mipi_config->byte_clk_sel; + intel_dsi->lp_rx_timeout = mipi_config->lp_rx_timeout; + intel_dsi->hs_tx_timeout = mipi_config->hs_tx_timeout; + intel_dsi->turn_arnd_val = mipi_config->turn_around_timeout; + intel_dsi->rst_timer_val = mipi_config->device_reset_timer; + intel_dsi->init_count = mipi_config->master_init_timer; + intel_dsi->bw_timer = mipi_config->dbi_bw_timer; + intel_dsi->video_frmt_cfg_bits = + mipi_config->bta_enabled ? DISABLE_VIDEO_BTA : 0; + intel_dsi->bgr_enabled = mipi_config->rgb_flip; + + /* Starting point, adjusted depending on dual link and burst mode */ + intel_dsi->pclk = mode->clock; + + /* In dual link mode each port needs half of pixel clock */ + if (intel_dsi->dual_link) { + intel_dsi->pclk /= 2; + + /* we can enable pixel_overlap if needed by panel. In this + * case we need to increase the pixelclock for extra pixels + */ + if (intel_dsi->dual_link == DSI_DUAL_LINK_FRONT_BACK) { + intel_dsi->pclk += DIV_ROUND_UP(mode->vtotal * intel_dsi->pixel_overlap * 60, 1000); + } + } + + /* Burst Mode Ratio + * Target ddr frequency from VBT / non burst ddr freq + * multiply by 100 to preserve remainder + */ + if (intel_dsi->video_mode_format == VIDEO_MODE_BURST) { + if (mipi_config->target_burst_mode_freq) { + u32 bitrate = intel_dsi_bitrate(intel_dsi); + + if (mipi_config->target_burst_mode_freq < bitrate) { + DRM_ERROR("Burst mode freq is less than computed\n"); + return false; + } + + burst_mode_ratio = DIV_ROUND_UP( + mipi_config->target_burst_mode_freq * 100, + bitrate); + + intel_dsi->pclk = DIV_ROUND_UP(intel_dsi->pclk * burst_mode_ratio, 100); + } else { + DRM_ERROR("Burst mode target is not set\n"); + return false; + } + } else + burst_mode_ratio = 100; + + intel_dsi->burst_mode_ratio = burst_mode_ratio; + + if (IS_ICELAKE(dev_priv)) + icl_dphy_param_init(intel_dsi); + else + vlv_dphy_param_init(intel_dsi); DRM_DEBUG_KMS("Pclk %d\n", intel_dsi->pclk); DRM_DEBUG_KMS("Pixel overlap %d\n", intel_dsi->pixel_overlap); |