| Message ID | 20220430161529.605843-1-konrad.dybcio@somainline.org |
|---|---|
| State | New |
| Headers | show |
| Series | [1/3] dt-bindings: display: msm: Add binding for MSM8996 DPU | expand |
On 30/04/2022 19:15, Konrad Dybcio wrote: > Add support for MSM8996, which - fun fact - was the SoC that this driver > (or rather SDE, its downstream origin) was meant for and first tested on. > > It has some hardware that differs from the modern SoCs, so not a lot of > current structs could have been reused. It's also seemingly the only SoC > supported by DPU that uses RGB pipes. > > Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> > --- > .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 268 ++++++++++++++++++ > drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 1 + > drivers/gpu/drm/msm/msm_drv.c | 1 + > 3 files changed, 270 insertions(+) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c > index 3ac425c0ad82..0a217b5172bd 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c > @@ -16,6 +16,11 @@ > BIT(DPU_SSPP_CSC_10BIT) | BIT(DPU_SSPP_CDP) |\ > BIT(DPU_SSPP_TS_PREFILL) | BIT(DPU_SSPP_EXCL_RECT)) > > +#define VIG_MSM8996_MASK \ > + (BIT(DPU_SSPP_SRC) | BIT(DPU_SSPP_QOS) |\ > + BIT(DPU_SSPP_CDP) | BIT(DPU_SSPP_TS_PREFILL) |\ > + BIT(DPU_SSPP_SCALER_QSEED3)) I think it has QSEED2 (yes, currently unsupported by DPU). > + > #define VIG_MSM8998_MASK \ > (VIG_MASK | BIT(DPU_SSPP_SCALER_QSEED3)) > > @@ -30,6 +35,10 @@ > > #define VIG_QCM2290_MASK (VIG_MASK | BIT(DPU_SSPP_QOS_8LVL)) > > +#define DMA_MSM8996_MASK \ > + (BIT(DPU_SSPP_SRC) | BIT(DPU_SSPP_QOS) |\ > + BIT(DPU_SSPP_TS_PREFILL) | BIT(DPU_SSPP_CDP)) > + > #define DMA_MSM8998_MASK \ > (BIT(DPU_SSPP_SRC) | BIT(DPU_SSPP_QOS) |\ > BIT(DPU_SSPP_TS_PREFILL) | BIT(DPU_SSPP_TS_PREFILL_REC1) |\ > @@ -57,6 +66,9 @@ > #define PINGPONG_SDM845_SPLIT_MASK \ > (PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2)) > > +#define RGB_MSM8996_MSK \ > + (VIG_MSM8996_MASK | BIT(DPU_SSPP_SCALER_RGB)) > + Please expand the VIG_MSM8996_MASK here. Currently we have separate masks for VIG, separate masks for DMA. Let's keeep that for RGB. > #define CTL_SC7280_MASK \ > (BIT(DPU_CTL_ACTIVE_CFG) | BIT(DPU_CTL_FETCH_ACTIVE) | BIT(DPU_CTL_VM_CFG)) > > @@ -72,6 +84,14 @@ > > #define INTF_SC7280_MASK INTF_SC7180_MASK | BIT(DPU_DATA_HCTL_EN) > > +#define IRQ_MSM8996_MASK (BIT(MDP_SSPP_TOP0_INTR) | \ > + BIT(MDP_SSPP_TOP0_INTR2) | \ > + BIT(MDP_SSPP_TOP0_HIST_INTR) | \ > + BIT(MDP_INTF0_INTR) | \ > + BIT(MDP_INTF1_INTR) | \ > + BIT(MDP_INTF2_INTR) | \ > + BIT(MDP_INTF3_INTR)) > + > #define IRQ_SDM845_MASK (BIT(MDP_SSPP_TOP0_INTR) | \ > BIT(MDP_SSPP_TOP0_INTR2) | \ > BIT(MDP_SSPP_TOP0_HIST_INTR) | \ > @@ -207,6 +227,17 @@ static const uint32_t plane_formats_yuv[] = { > * DPU sub blocks config > *************************************************************/ > /* DPU top level caps */ > +static const struct dpu_caps msm8996_dpu_caps = { > + .max_mixer_width = DEFAULT_DPU_OUTPUT_LINE_WIDTH, > + .max_mixer_blendstages = 0x7, > + .qseed_type = DPU_SSPP_SCALER_QSEED3, QSEED2 > + .has_src_split = true, > + .max_linewidth = DEFAULT_DPU_OUTPUT_LINE_WIDTH, > + .pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE, > + .max_hdeci_exp = MAX_HORZ_DECIMATION, > + .max_vdeci_exp = MAX_VERT_DECIMATION, > +}; > + > static const struct dpu_caps msm8998_dpu_caps = { > .max_mixer_width = DEFAULT_DPU_OUTPUT_LINE_WIDTH, > .max_mixer_blendstages = 0x7, > @@ -328,6 +359,35 @@ static const struct dpu_caps sc7280_dpu_caps = { > .pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE, > }; > > +static const struct dpu_mdp_cfg msm8996_mdp[] = { > + { > + .name = "top_0", .id = MDP_TOP, > + .base = 0x0, .len = 0x454, > + .features = 0, > + .highest_bank_bit = 0x2, > + .clk_ctrls[DPU_CLK_CTRL_VIG0] = { > + .reg_off = 0x2AC, .bit_off = 0}, > + .clk_ctrls[DPU_CLK_CTRL_VIG1] = { > + .reg_off = 0x2B4, .bit_off = 0}, > + .clk_ctrls[DPU_CLK_CTRL_VIG2] = { > + .reg_off = 0x2BC, .bit_off = 0}, > + .clk_ctrls[DPU_CLK_CTRL_VIG3] = { > + .reg_off = 0x2C4, .bit_off = 0}, > + .clk_ctrls[DPU_CLK_CTRL_RGB0] = { > + .reg_off = 0x2AC, .bit_off = 4}, > + .clk_ctrls[DPU_CLK_CTRL_RGB1] = { > + .reg_off = 0x2B4, .bit_off = 4}, > + .clk_ctrls[DPU_CLK_CTRL_RGB2] = { > + .reg_off = 0x2BC, .bit_off = 4}, > + .clk_ctrls[DPU_CLK_CTRL_RGB3] = { > + .reg_off = 0x2C4, .bit_off = 4}, > + .clk_ctrls[DPU_CLK_CTRL_DMA0] = { > + .reg_off = 0x2AC, .bit_off = 8}, > + .clk_ctrls[DPU_CLK_CTRL_DMA1] = { > + .reg_off = 0x2B4, .bit_off = 8}, > + }, > +}; > + > static const struct dpu_mdp_cfg msm8998_mdp[] = { > { > .name = "top_0", .id = MDP_TOP, > @@ -513,6 +573,39 @@ static const struct dpu_mdp_cfg qcm2290_mdp[] = { > /************************************************************* > * CTL sub blocks config > *************************************************************/ > +static const struct dpu_ctl_cfg msm8996_ctl[] = { > + { > + .name = "ctl_0", .id = CTL_0, > + .base = 0x1000, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 9), > + }, > + { > + .name = "ctl_1", .id = CTL_1, > + .base = 0x1200, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 10), > + }, > + { > + .name = "ctl_2", .id = CTL_2, > + .base = 0x1400, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 11), > + }, > + { > + .name = "ctl_3", .id = CTL_3, > + .base = 0x1600, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 12), > + }, > + { > + .name = "ctl_4", .id = CTL_4, > + .base = 0x1800, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 13), > + }, > +}; > + > static const struct dpu_ctl_cfg msm8998_ctl[] = { > { > .name = "ctl_0", .id = CTL_0, > @@ -708,6 +801,25 @@ static const struct dpu_ctl_cfg qcm2290_ctl[] = { > > /* SSPP common configuration */ > > +#define _VIG_SBLK_8996(num, sdma_pri, qseed_ver) \ > + { \ > + .maxdwnscale = MAX_DOWNSCALE_RATIO, \ > + .maxupscale = MAX_UPSCALE_RATIO, \ > + .smart_dma_priority = sdma_pri, \ > + .src_blk = {.name = STRCAT("sspp_src_", num), \ > + .id = DPU_SSPP_SRC, .base = 0x00, .len = 0x150,}, \ > + .scaler_blk = {.name = STRCAT("sspp_scaler", num), \ > + .id = qseed_ver, \ > + .base = 0x200, .len = 0xa0,}, \ > + .csc_blk = {.name = STRCAT("sspp_csc", num), \ > + .id = DPU_SSPP_CSC, \ > + .base = 0x320, .len = 0x100,}, \ > + .format_list = plane_formats_yuv, \ > + .num_formats = ARRAY_SIZE(plane_formats_yuv), \ > + .virt_format_list = plane_formats, \ > + .virt_num_formats = ARRAY_SIZE(plane_formats), \ > + } > + > #define _VIG_SBLK(num, sdma_pri, qseed_ver) \ > { \ > .maxdwnscale = MAX_DOWNSCALE_RATIO, \ > @@ -740,6 +852,15 @@ static const struct dpu_ctl_cfg qcm2290_ctl[] = { > .virt_num_formats = ARRAY_SIZE(plane_formats), \ > } > > +static const struct dpu_sspp_sub_blks msm8996_vig_sblk_0 = > + _VIG_SBLK_8996("0", 0, DPU_SSPP_SCALER_QSEED3); > +static const struct dpu_sspp_sub_blks msm8996_vig_sblk_1 = > + _VIG_SBLK_8996("1", 0, DPU_SSPP_SCALER_QSEED3); > +static const struct dpu_sspp_sub_blks msm8996_vig_sblk_2 = > + _VIG_SBLK_8996("2", 0, DPU_SSPP_SCALER_QSEED3); > +static const struct dpu_sspp_sub_blks msm8996_vig_sblk_3 = > + _VIG_SBLK_8996("3", 0, DPU_SSPP_SCALER_QSEED3); Again QSEED2 > + > static const struct dpu_sspp_sub_blks msm8998_vig_sblk_0 = > _VIG_SBLK("0", 0, DPU_SSPP_SCALER_QSEED3); > static const struct dpu_sspp_sub_blks msm8998_vig_sblk_1 = > @@ -775,6 +896,30 @@ static const struct dpu_sspp_sub_blks sdm845_dma_sblk_3 = _DMA_SBLK("11", 4); > .clk_ctrl = _clkctrl \ > } > > +static const struct dpu_sspp_cfg msm8996_sspp[] = { > + SSPP_BLK("sspp_0", SSPP_VIG0, 0x4000, 0x150, VIG_MSM8996_MASK, > + msm8996_vig_sblk_0, 0, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG0), > + SSPP_BLK("sspp_1", SSPP_VIG1, 0x6000, 0x150, VIG_MSM8996_MASK, > + msm8996_vig_sblk_1, 4, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG1), > + SSPP_BLK("sspp_2", SSPP_VIG2, 0x8000, 0x150, VIG_MSM8996_MASK, > + msm8996_vig_sblk_2, 8, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG2), > + SSPP_BLK("sspp_3", SSPP_VIG3, 0xa000, 0x150, VIG_MSM8996_MASK, > + msm8996_vig_sblk_3, 12, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG3), > + /* TODO: RGB blocks */ Plwease expand this to 'add dpu_sspp_sub_blks instances for RGB blocks. Let's do it before we land this patchset. > + SSPP_BLK("sspp_4", SSPP_RGB0, 0x14000, 0x150, RGB_MSM8996_MSK, > + sdm845_dma_sblk_0, 1, SSPP_TYPE_RGB, DPU_CLK_CTRL_RGB0), > + SSPP_BLK("sspp_5", SSPP_RGB1, 0x16000, 0x150, RGB_MSM8996_MSK, > + sdm845_dma_sblk_1, 5, SSPP_TYPE_RGB, DPU_CLK_CTRL_RGB1), > + SSPP_BLK("sspp_6", SSPP_RGB2, 0x18000, 0x150, RGB_MSM8996_MSK, > + sdm845_dma_sblk_2, 9, SSPP_TYPE_RGB, DPU_CLK_CTRL_RGB2), > + SSPP_BLK("sspp_7", SSPP_RGB3, 0x1a000, 0x150, RGB_MSM8996_MSK, > + sdm845_dma_sblk_3, 13, SSPP_TYPE_RGB, DPU_CLK_CTRL_RGB3), > + SSPP_BLK("sspp_8", SSPP_DMA0, 0x24000, 0x150, DMA_MSM8996_MASK, > + sdm845_dma_sblk_0, 2, SSPP_TYPE_DMA, DPU_CLK_CTRL_DMA0), > + SSPP_BLK("sspp_9", SSPP_DMA1, 0x26000, 0x150, DMA_MSM8996_MASK, > + sdm845_dma_sblk_1, 10, SSPP_TYPE_DMA, DPU_CLK_CTRL_DMA1), > +}; > + > static const struct dpu_sspp_cfg msm8998_sspp[] = { > SSPP_BLK("sspp_0", SSPP_VIG0, 0x4000, 0x184, VIG_MSM8998_MASK, > msm8998_vig_sblk_0, 0, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG0), > @@ -1100,6 +1245,11 @@ static const struct dpu_dspp_cfg qcm2290_dspp[] = { > /************************************************************* > * PINGPONG sub blocks config > *************************************************************/ > +static const struct dpu_pingpong_sub_blks msm8996_pp_sblk_te = { > + .te2 = {.id = DPU_PINGPONG_TE2, .base = 0x2000, .len = 0x0, > + .version = 0x1}, > +}; > + > static const struct dpu_pingpong_sub_blks sdm845_pp_sblk_te = { > .te2 = {.id = DPU_PINGPONG_TE2, .base = 0x2000, .len = 0x0, > .version = 0x1}, > @@ -1138,6 +1288,21 @@ static const struct dpu_pingpong_sub_blks sc7280_pp_sblk = { > .intr_rdptr = _rdptr, \ > } > > +static const struct dpu_pingpong_cfg msm8996_pp[] = { > + PP_BLK_TE("pingpong_0", PINGPONG_0, 0x70000, 0, msm8996_pp_sblk_te, > + DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 8), > + DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 12)), > + PP_BLK_TE("pingpong_1", PINGPONG_1, 0x70800, 0, msm8996_pp_sblk_te, > + DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 9), > + DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 13)), > + PP_BLK("pingpong_2", PINGPONG_2, 0x71000, 0, sdm845_pp_sblk, > + DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 10), > + DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 14)), > + PP_BLK("pingpong_3", PINGPONG_3, 0x71800, 0, sdm845_pp_sblk, > + DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 11), > + DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 15)), > +}; > + > static const struct dpu_pingpong_cfg sdm845_pp[] = { > PP_BLK_TE("pingpong_0", PINGPONG_0, 0x70000, 0, sdm845_pp_sblk_te, > DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 8), > @@ -1232,6 +1397,13 @@ static const struct dpu_pingpong_cfg sc7280_pp[] = { > .intr_vsync = DPU_IRQ_IDX(_reg, _vsync_bit), \ > } > > +static const struct dpu_intf_cfg msm8996_intf[] = { > + INTF_BLK("intf_0", INTF_0, 0x6A000, 0x268, INTF_NONE, 0, 25, INTF_SDM845_MASK, MDP_SSPP_TOP0_INTR, 24, 25), > + INTF_BLK("intf_1", INTF_1, 0x6A800, 0x268, INTF_DSI, 0, 25, INTF_SDM845_MASK, MDP_SSPP_TOP0_INTR, 26, 27), > + INTF_BLK("intf_2", INTF_2, 0x6B000, 0x268, INTF_DSI, 1, 25, INTF_SDM845_MASK, MDP_SSPP_TOP0_INTR, 28, 29), > + INTF_BLK("intf_3", INTF_3, 0x6B800, 0x268, INTF_HDMI, 0, 25, INTF_SDM845_MASK, MDP_SSPP_TOP0_INTR, 30, 31), > +}; > + > static const struct dpu_intf_cfg msm8998_intf[] = { > INTF_BLK("intf_0", INTF_0, 0x6A000, 0x268, INTF_DP, 0, 25, INTF_SDM845_MASK, MDP_SSPP_TOP0_INTR, 24, 25), > INTF_BLK("intf_1", INTF_1, 0x6A800, 0x268, INTF_DSI, 0, 25, INTF_SDM845_MASK, MDP_SSPP_TOP0_INTR, 26, 27), > @@ -1308,6 +1480,33 @@ static const struct dpu_vbif_dynamic_ot_cfg msm8998_ot_rdwr_cfg[] = { > }, > }; > > +static const struct dpu_vbif_cfg msm8996_vbif[] = { > + { > + .name = "vbif_0", .id = VBIF_0, > + .base = 0, .len = 0x1040, > + .default_ot_rd_limit = 32, > + .default_ot_wr_limit = 16, > + .features = BIT(DPU_VBIF_QOS_REMAP) | BIT(DPU_VBIF_QOS_OTLIM), > + .xin_halt_timeout = 0x4000, > + .dynamic_ot_rd_tbl = { > + .count = ARRAY_SIZE(msm8998_ot_rdwr_cfg), > + .cfg = msm8998_ot_rdwr_cfg, > + }, > + .dynamic_ot_wr_tbl = { > + .count = ARRAY_SIZE(msm8998_ot_rdwr_cfg), > + .cfg = msm8998_ot_rdwr_cfg, > + }, > + .qos_rt_tbl = { > + .npriority_lvl = ARRAY_SIZE(msm8998_rt_pri_lvl), > + .priority_lvl = msm8998_rt_pri_lvl, > + }, > + .qos_nrt_tbl = { > + .npriority_lvl = ARRAY_SIZE(msm8998_nrt_pri_lvl), > + .priority_lvl = msm8998_nrt_pri_lvl, > + }, > + }, > +}; I think this is not correct. IIRC MSM8996 had two separate VBIFs: RT and NRT. At least it deserves a comment that second VBIF is not supported yet, etc. > + > static const struct dpu_vbif_cfg msm8998_vbif[] = { > { > .name = "vbif_0", .id = VBIF_0, > @@ -1491,6 +1690,42 @@ static const struct dpu_qos_lut_entry sc7180_qos_nrt[] = { > {.fl = 0, .lut = 0x0}, > }; > > +static const struct dpu_perf_cfg msm8996_perf_data = { > + .max_bw_low = 9600000, > + .max_bw_high = 9600000, > + .min_core_ib = 2400000, > + .min_llcc_ib = 800000, > + .min_dram_ib = 800000, > + .undersized_prefill_lines = 2, > + .xtra_prefill_lines = 2, > + .dest_scale_prefill_lines = 3, > + .macrotile_prefill_lines = 4, > + .yuv_nv12_prefill_lines = 8, > + .linear_prefill_lines = 1, > + .downscaling_prefill_lines = 1, > + .amortizable_threshold = 25, > + .min_prefill_lines = 21, > + .danger_lut_tbl = {0xf, 0xffff, 0x0}, > + .safe_lut_tbl = {0xfffc, 0xff00, 0xffff}, > + .qos_lut_tbl = { > + {.nentry = ARRAY_SIZE(msm8998_qos_linear), > + .entries = msm8998_qos_linear > + }, > + {.nentry = ARRAY_SIZE(msm8998_qos_macrotile), > + .entries = msm8998_qos_macrotile > + }, > + {.nentry = ARRAY_SIZE(msm8998_qos_nrt), > + .entries = msm8998_qos_nrt > + }, > + }, > + .cdp_cfg = { > + {.rd_enable = 1, .wr_enable = 1}, > + {.rd_enable = 1, .wr_enable = 0} > + }, > + .clk_inefficiency_factor = 105, > + .bw_inefficiency_factor = 120, > +}; > + > static const struct dpu_perf_cfg msm8998_perf_data = { > .max_bw_low = 6700000, > .max_bw_high = 6700000, > @@ -1757,6 +1992,36 @@ static const struct dpu_perf_cfg qcm2290_perf_data = { > * Hardware catalog init > *************************************************************/ > > +/* > + * msm8996_cfg_init(): populate msm8996 dpu sub-blocks reg offsets > + * and instance counts. > + */ > +static void msm8996_cfg_init(struct dpu_mdss_cfg *dpu_cfg) > +{ > + *dpu_cfg = (struct dpu_mdss_cfg){ > + .caps = &msm8996_dpu_caps, > + .mdp_count = ARRAY_SIZE(msm8996_mdp), > + .mdp = msm8996_mdp, > + .ctl_count = ARRAY_SIZE(msm8996_ctl), > + .ctl = msm8996_ctl, > + .sspp_count = ARRAY_SIZE(msm8996_sspp), > + .sspp = msm8996_sspp, > + .mixer_count = ARRAY_SIZE(msm8998_lm), > + .mixer = msm8998_lm, > + .dspp_count = ARRAY_SIZE(msm8998_dspp), > + .dspp = msm8998_dspp, > + .pingpong_count = ARRAY_SIZE(msm8996_pp), > + .pingpong = msm8996_pp, > + .intf_count = ARRAY_SIZE(msm8996_intf), > + .intf = msm8996_intf, > + .vbif_count = ARRAY_SIZE(msm8996_vbif), > + .vbif = msm8996_vbif, > + .reg_dma_count = 0, > + .perf = msm8996_perf_data, > + .mdss_irqs = IRQ_MSM8996_MASK, > + }; > +} > + > /* > * msm8998_cfg_init(): populate sdm845 dpu sub-blocks reg offsets > * and instance counts. > @@ -2031,6 +2296,9 @@ static void qcm2290_cfg_init(struct dpu_mdss_cfg *dpu_cfg) > } > > static const struct dpu_mdss_hw_cfg_handler cfg_handler[] = { > + { .hw_rev = DPU_HW_VER_170, .cfg_init = msm8996_cfg_init}, > + { .hw_rev = DPU_HW_VER_171, .cfg_init = msm8996_cfg_init}, > + { .hw_rev = DPU_HW_VER_172, .cfg_init = msm8996_cfg_init}, > { .hw_rev = DPU_HW_VER_300, .cfg_init = msm8998_cfg_init}, > { .hw_rev = DPU_HW_VER_301, .cfg_init = msm8998_cfg_init}, > { .hw_rev = DPU_HW_VER_400, .cfg_init = sdm845_cfg_init}, > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > index e29796c4f27b..9ba25195838f 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > @@ -1321,6 +1321,7 @@ static const struct dev_pm_ops dpu_pm_ops = { > }; > > const struct of_device_id dpu_dt_match[] = { > + { .compatible = "qcom,msm8996-dpu", }, Let's discuss this separately, in the thread starting from dt-bindings. > { .compatible = "qcom,msm8998-dpu", }, > { .compatible = "qcom,qcm2290-dpu", }, > { .compatible = "qcom,sdm845-dpu", }, > diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c > index 9c36b505daab..8cd2a0fd9b5f 100644 > --- a/drivers/gpu/drm/msm/msm_drv.c > +++ b/drivers/gpu/drm/msm/msm_drv.c > @@ -1305,6 +1305,7 @@ static void msm_pdev_shutdown(struct platform_device *pdev) > static const struct of_device_id dt_match[] = { > { .compatible = "qcom,mdp4", .data = (void *)KMS_MDP4 }, > { .compatible = "qcom,mdss", .data = (void *)KMS_MDP5 }, > + { .compatible = "qcom,msm8996-mdss", .data = (void *)KMS_DPU }, This should not be necessary after the https://patchwork.freedesktop.org/series/98525/. For the MDSS the driver can definitely continue using qcom,mdss (or "qcom,msm8996-mdss", "qcom,mdss") without the need to use separate compatible entry here. > { .compatible = "qcom,msm8998-mdss", .data = (void *)KMS_DPU }, > { .compatible = "qcom,qcm2290-mdss", .data = (void *)KMS_DPU }, > { .compatible = "qcom,sdm845-mdss", .data = (void *)KMS_DPU },
On 30/04/2022 19:15, Konrad Dybcio wrote: > Add yaml binding for MSM8996 DPU. > > Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> > --- > .../bindings/display/msm/dpu-msm8996.yaml | 221 ++++++++++++++++++ > 1 file changed, 221 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml > > diff --git a/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml b/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml > new file mode 100644 > index 000000000000..10b02423224d > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml > @@ -0,0 +1,221 @@ > +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/msm/dpu-msm8996.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Qualcomm Display DPU dt properties for MSM8996 target > + > +maintainers: > + - Konrad Dybcio <konrad.dybcio@somainline.org> > + > +description: | > + Device tree bindings for MSM Mobile Display Subsystem (MDSS) that > + encapsulates sub-blocks like DPU display controller, DSI interfaces, etc. > + Device tree bindings of MDSS and DPU are mentioned for MSM8996 target. > + > +properties: > + compatible: > + items: > + - const: qcom,msm8996-mdss With the unified MDSS driver there is no need to describe a separate mdss bindings. Let's skip this part for now. > + > + reg: > + maxItems: 1 > + > + reg-names: > + const: mdss > + > + power-domains: > + maxItems: 1 > + > + clocks: > + items: > + - description: Display AHB clock > + - description: Display core clock > + > + clock-names: > + items: > + - const: iface > + - const: core > + > + interrupts: > + maxItems: 1 > + > + interrupt-controller: true > + > + "#address-cells": true > + > + "#size-cells": true > + > + "#interrupt-cells": > + const: 1 > + > + iommus: > + items: > + - description: Phandle to mdp_smmu node with SID mask for Hard-Fail port0 > + > + ranges: true > + > +patternProperties: > + "^display-controller@[0-9a-f]+$": > + type: object > + description: Node containing the properties of DPU. > + > + properties: > + compatible: > + items: > + - const: qcom,msm8996-dpu Okay. So, this is the most interesting part. Unlike MSM8998, which is supported in the mdp5 driver, but was not used in the upstream DTS files, for the MSM8996 the MDP5 part is described, used and widely tested. And, unfortunately, the bindings use solely the generic "qcom,mdp5" compat. I would suggest the following plan: - Define a binding using both "qcom,msm8996-dpu" and "qcom,mdp5" strings. Make sure that it is fully backwards-compatible with older dts. - Update msm8996.dtsi to follow new binding. - Let's have a Kconfig flip switch selecting which driver to be used for 8996/8998. > + > + reg: > + items: > + - description: Address offset and size for mdp register set > + - description: Address offset and size for vbif register set > + - description: Address offset and size for non-realtime vbif register set > + > + reg-names: > + items: > + - const: mdp > + - const: vbif > + - const: vbif_nrt > + > + clocks: > + items: > + - description: Display ahb clock > + - description: Display axi clock > + - description: Display core clock > + - description: Display iommu clock > + - description: Display vsync clock > + > + clock-names: > + items: > + - const: iface > + - const: bus > + - const: core > + - const: iommu > + - const: vsync > + > + interrupts: > + maxItems: 1 > + > + power-domains: > + maxItems: 1 > + > + operating-points-v2: true > + ports: > + $ref: /schemas/graph.yaml#/properties/ports > + description: | > + Contains the list of output ports from DPU device. These ports > + connect to interfaces that are external to the DPU hardware, > + such as DSI, DP etc. Each output port contains an endpoint that > + describes how it is connected to an external interface. > + > + properties: > + port@0: > + $ref: /schemas/graph.yaml#/properties/port > + description: DPU_INTF3 (HDMI) > + > + port@1: > + $ref: /schemas/graph.yaml#/properties/port > + description: DPU_INTF1 (DSI0) > + > + required: > + - port@0 > + - port@1 > + > + required: > + - compatible > + - reg > + - reg-names > + - clocks > + - interrupts > + - power-domains > + - operating-points-v2 > + - ports > + > +required: > + - compatible > + - reg > + - reg-names > + - power-domains > + - clocks > + - interrupts > + - interrupt-controller > + - iommus > + - ranges > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/qcom,mmcc-msm8996.h> > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + #include <dt-bindings/power/qcom-rpmpd.h> > + > + mdss: display-subsystem@900000 { > + compatible = "qcom,msm8996-mdss"; > + reg = <0x00900000 0x1000>; > + reg-names = "mdss"; > + > + power-domains = <&mmcc MDSS_GDSC>; > + > + clocks = <&mmcc MDSS_AHB_CLK>, <&mmcc MDSS_MDP_CLK>; > + clock-names = "iface", "core"; > + > + assigned-clocks = <&mmcc MDSS_MDP_CLK>; > + assigned-clock-rates = <300000000>; This should not be necessary. > + > + interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>; > + interrupt-controller; > + #interrupt-cells = <1>; > + > + iommus = <&mdp_smmu 0>; > + > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + > + display-controller@901000 { > + compatible = "qcom,msm8996-dpu"; > + reg = <0x00901000 0x90000>, > + <0x009b0000 0x1040>, > + <0x009b8000 0x1040>; > + reg-names = "mdp", "vbif", "vbif_nrt"; > + > + clocks = <&mmcc MDSS_AHB_CLK>, > + <&mmcc MDSS_AXI_CLK>, > + <&mmcc MDSS_MDP_CLK>, > + <&mmcc SMMU_MDP_AXI_CLK>, > + <&mmcc MDSS_VSYNC_CLK>; > + clock-names = "iface", "bus", "core", "iommu", "vsync"; > + > + assigned-clocks = <&mmcc MDSS_MDP_CLK>, > + <&mmcc MDSS_VSYNC_CLK>; > + assigned-clock-rates = <412500000>, <19200000>; MDP_CLK here should not be neccessary after Vinod Polimera's patches. > + > + operating-points-v2 = <&mdp_opp_table>; > + power-domains = <&rpmpd MSM8996_VDDMX>; > + > + interrupt-parent = <&mdss>; > + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + dpu_intf3_out: endpoint { > + remote-endpoint = <&hdmi_in>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + dpu_intf1_out: endpoint { > + remote-endpoint = <&dsi0_in>; > + }; > + }; > + }; > + }; > + }; > +...
On 30/04/2022 19:15, Konrad Dybcio wrote: > Add support for MSM8996, which - fun fact - was the SoC that this driver > (or rather SDE, its downstream origin) was meant for and first tested on. > > It has some hardware that differs from the modern SoCs, so not a lot of > current structs could have been reused. It's also seemingly the only SoC > supported by DPU that uses RGB pipes. > > Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> > --- > .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 268 ++++++++++++++++++ > drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 1 + > drivers/gpu/drm/msm/msm_drv.c | 1 + > 3 files changed, 270 insertions(+) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c > index 3ac425c0ad82..0a217b5172bd 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c > @@ -16,6 +16,11 @@ > BIT(DPU_SSPP_CSC_10BIT) | BIT(DPU_SSPP_CDP) |\ > BIT(DPU_SSPP_TS_PREFILL) | BIT(DPU_SSPP_EXCL_RECT)) > > +#define VIG_MSM8996_MASK \ > + (BIT(DPU_SSPP_SRC) | BIT(DPU_SSPP_QOS) |\ > + BIT(DPU_SSPP_CDP) | BIT(DPU_SSPP_TS_PREFILL) |\ > + BIT(DPU_SSPP_SCALER_QSEED3)) > + > #define VIG_MSM8998_MASK \ > (VIG_MASK | BIT(DPU_SSPP_SCALER_QSEED3)) > > @@ -30,6 +35,10 @@ > > #define VIG_QCM2290_MASK (VIG_MASK | BIT(DPU_SSPP_QOS_8LVL)) > > +#define DMA_MSM8996_MASK \ > + (BIT(DPU_SSPP_SRC) | BIT(DPU_SSPP_QOS) |\ > + BIT(DPU_SSPP_TS_PREFILL) | BIT(DPU_SSPP_CDP)) > + > #define DMA_MSM8998_MASK \ > (BIT(DPU_SSPP_SRC) | BIT(DPU_SSPP_QOS) |\ > BIT(DPU_SSPP_TS_PREFILL) | BIT(DPU_SSPP_TS_PREFILL_REC1) |\ > @@ -57,6 +66,9 @@ > #define PINGPONG_SDM845_SPLIT_MASK \ > (PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2)) > > +#define RGB_MSM8996_MSK \ > + (VIG_MSM8996_MASK | BIT(DPU_SSPP_SCALER_RGB)) > + > #define CTL_SC7280_MASK \ > (BIT(DPU_CTL_ACTIVE_CFG) | BIT(DPU_CTL_FETCH_ACTIVE) | BIT(DPU_CTL_VM_CFG)) > > @@ -72,6 +84,14 @@ > > #define INTF_SC7280_MASK INTF_SC7180_MASK | BIT(DPU_DATA_HCTL_EN) > > +#define IRQ_MSM8996_MASK (BIT(MDP_SSPP_TOP0_INTR) | \ > + BIT(MDP_SSPP_TOP0_INTR2) | \ > + BIT(MDP_SSPP_TOP0_HIST_INTR) | \ > + BIT(MDP_INTF0_INTR) | \ > + BIT(MDP_INTF1_INTR) | \ > + BIT(MDP_INTF2_INTR) | \ > + BIT(MDP_INTF3_INTR)) > + What about AD4 blocks? I think there were two AD4 blocks, so we might use IRQ_SDM845_MASK instead (Note: we need to check whether sdm845 really supported INTF4 interrupts or not). > #define IRQ_SDM845_MASK (BIT(MDP_SSPP_TOP0_INTR) | \ > BIT(MDP_SSPP_TOP0_INTR2) | \ > BIT(MDP_SSPP_TOP0_HIST_INTR) | \ > @@ -207,6 +227,17 @@ static const uint32_t plane_formats_yuv[] = { > * DPU sub blocks config > *************************************************************/ > /* DPU top level caps */ > +static const struct dpu_caps msm8996_dpu_caps = { > + .max_mixer_width = DEFAULT_DPU_OUTPUT_LINE_WIDTH, > + .max_mixer_blendstages = 0x7, > + .qseed_type = DPU_SSPP_SCALER_QSEED3, > + .has_src_split = true, > + .max_linewidth = DEFAULT_DPU_OUTPUT_LINE_WIDTH, > + .pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE, > + .max_hdeci_exp = MAX_HORZ_DECIMATION, > + .max_vdeci_exp = MAX_VERT_DECIMATION, > +}; > + > static const struct dpu_caps msm8998_dpu_caps = { > .max_mixer_width = DEFAULT_DPU_OUTPUT_LINE_WIDTH, > .max_mixer_blendstages = 0x7, > @@ -328,6 +359,35 @@ static const struct dpu_caps sc7280_dpu_caps = { > .pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE, > }; > > +static const struct dpu_mdp_cfg msm8996_mdp[] = { > + { > + .name = "top_0", .id = MDP_TOP, > + .base = 0x0, .len = 0x454, > + .features = 0, > + .highest_bank_bit = 0x2, > + .clk_ctrls[DPU_CLK_CTRL_VIG0] = { > + .reg_off = 0x2AC, .bit_off = 0}, Please convert to the lower case. > + .clk_ctrls[DPU_CLK_CTRL_VIG1] = { > + .reg_off = 0x2B4, .bit_off = 0}, > + .clk_ctrls[DPU_CLK_CTRL_VIG2] = { > + .reg_off = 0x2BC, .bit_off = 0}, > + .clk_ctrls[DPU_CLK_CTRL_VIG3] = { > + .reg_off = 0x2C4, .bit_off = 0}, > + .clk_ctrls[DPU_CLK_CTRL_RGB0] = { > + .reg_off = 0x2AC, .bit_off = 4}, > + .clk_ctrls[DPU_CLK_CTRL_RGB1] = { > + .reg_off = 0x2B4, .bit_off = 4}, > + .clk_ctrls[DPU_CLK_CTRL_RGB2] = { > + .reg_off = 0x2BC, .bit_off = 4}, > + .clk_ctrls[DPU_CLK_CTRL_RGB3] = { > + .reg_off = 0x2C4, .bit_off = 4}, > + .clk_ctrls[DPU_CLK_CTRL_DMA0] = { > + .reg_off = 0x2AC, .bit_off = 8}, > + .clk_ctrls[DPU_CLK_CTRL_DMA1] = { > + .reg_off = 0x2B4, .bit_off = 8}, There were two cursor SSPPs, please add corresponding controls here > + }, > +}; > + > static const struct dpu_mdp_cfg msm8998_mdp[] = { > { > .name = "top_0", .id = MDP_TOP, > @@ -513,6 +573,39 @@ static const struct dpu_mdp_cfg qcm2290_mdp[] = { > /************************************************************* > * CTL sub blocks config > *************************************************************/ > +static const struct dpu_ctl_cfg msm8996_ctl[] = { > + { > + .name = "ctl_0", .id = CTL_0, > + .base = 0x1000, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 9), > + }, > + { > + .name = "ctl_1", .id = CTL_1, > + .base = 0x1200, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 10), > + }, > + { > + .name = "ctl_2", .id = CTL_2, > + .base = 0x1400, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 11), > + }, > + { > + .name = "ctl_3", .id = CTL_3, > + .base = 0x1600, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 12), > + }, > + { > + .name = "ctl_4", .id = CTL_4, > + .base = 0x1800, .len = 0x64, > + .features = 0, > + .intr_start = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR2, 13), > + }, > +}; > + > static const struct dpu_ctl_cfg msm8998_ctl[] = { > { > .name = "ctl_0", .id = CTL_0, > @@ -708,6 +801,25 @@ static const struct dpu_ctl_cfg qcm2290_ctl[] = { > > /* SSPP common configuration */ > > +#define _VIG_SBLK_8996(num, sdma_pri, qseed_ver) \ > + { \ > + .maxdwnscale = MAX_DOWNSCALE_RATIO, \ > + .maxupscale = MAX_UPSCALE_RATIO, \ > + .smart_dma_priority = sdma_pri, \ > + .src_blk = {.name = STRCAT("sspp_src_", num), \ > + .id = DPU_SSPP_SRC, .base = 0x00, .len = 0x150,}, \ > + .scaler_blk = {.name = STRCAT("sspp_scaler", num), \ > + .id = qseed_ver, \ > + .base = 0x200, .len = 0xa0,}, \ > + .csc_blk = {.name = STRCAT("sspp_csc", num), \ > + .id = DPU_SSPP_CSC, \ > + .base = 0x320, .len = 0x100,}, \ > + .format_list = plane_formats_yuv, \ > + .num_formats = ARRAY_SIZE(plane_formats_yuv), \ > + .virt_format_list = plane_formats, \ > + .virt_num_formats = ARRAY_SIZE(plane_formats), \ > + } > + > #define _VIG_SBLK(num, sdma_pri, qseed_ver) \ > { \ > .maxdwnscale = MAX_DOWNSCALE_RATIO, \ > @@ -740,6 +852,15 @@ static const struct dpu_ctl_cfg qcm2290_ctl[] = { > .virt_num_formats = ARRAY_SIZE(plane_formats), \ > } > > +static const struct dpu_sspp_sub_blks msm8996_vig_sblk_0 = > + _VIG_SBLK_8996("0", 0, DPU_SSPP_SCALER_QSEED3); > +static const struct dpu_sspp_sub_blks msm8996_vig_sblk_1 = > + _VIG_SBLK_8996("1", 0, DPU_SSPP_SCALER_QSEED3); > +static const struct dpu_sspp_sub_blks msm8996_vig_sblk_2 = > + _VIG_SBLK_8996("2", 0, DPU_SSPP_SCALER_QSEED3); > +static const struct dpu_sspp_sub_blks msm8996_vig_sblk_3 = > + _VIG_SBLK_8996("3", 0, DPU_SSPP_SCALER_QSEED3); > + > static const struct dpu_sspp_sub_blks msm8998_vig_sblk_0 = > _VIG_SBLK("0", 0, DPU_SSPP_SCALER_QSEED3); > static const struct dpu_sspp_sub_blks msm8998_vig_sblk_1 = > @@ -775,6 +896,30 @@ static const struct dpu_sspp_sub_blks sdm845_dma_sblk_3 = _DMA_SBLK("11", 4); > .clk_ctrl = _clkctrl \ > } > > +static const struct dpu_sspp_cfg msm8996_sspp[] = { > + SSPP_BLK("sspp_0", SSPP_VIG0, 0x4000, 0x150, VIG_MSM8996_MASK, > + msm8996_vig_sblk_0, 0, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG0), > + SSPP_BLK("sspp_1", SSPP_VIG1, 0x6000, 0x150, VIG_MSM8996_MASK, > + msm8996_vig_sblk_1, 4, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG1), > + SSPP_BLK("sspp_2", SSPP_VIG2, 0x8000, 0x150, VIG_MSM8996_MASK, > + msm8996_vig_sblk_2, 8, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG2), > + SSPP_BLK("sspp_3", SSPP_VIG3, 0xa000, 0x150, VIG_MSM8996_MASK, > + msm8996_vig_sblk_3, 12, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG3), > + /* TODO: RGB blocks */ > + SSPP_BLK("sspp_4", SSPP_RGB0, 0x14000, 0x150, RGB_MSM8996_MSK, > + sdm845_dma_sblk_0, 1, SSPP_TYPE_RGB, DPU_CLK_CTRL_RGB0), > + SSPP_BLK("sspp_5", SSPP_RGB1, 0x16000, 0x150, RGB_MSM8996_MSK, > + sdm845_dma_sblk_1, 5, SSPP_TYPE_RGB, DPU_CLK_CTRL_RGB1), > + SSPP_BLK("sspp_6", SSPP_RGB2, 0x18000, 0x150, RGB_MSM8996_MSK, > + sdm845_dma_sblk_2, 9, SSPP_TYPE_RGB, DPU_CLK_CTRL_RGB2), > + SSPP_BLK("sspp_7", SSPP_RGB3, 0x1a000, 0x150, RGB_MSM8996_MSK, > + sdm845_dma_sblk_3, 13, SSPP_TYPE_RGB, DPU_CLK_CTRL_RGB3), > + SSPP_BLK("sspp_8", SSPP_DMA0, 0x24000, 0x150, DMA_MSM8996_MASK, > + sdm845_dma_sblk_0, 2, SSPP_TYPE_DMA, DPU_CLK_CTRL_DMA0), > + SSPP_BLK("sspp_9", SSPP_DMA1, 0x26000, 0x150, DMA_MSM8996_MASK, > + sdm845_dma_sblk_1, 10, SSPP_TYPE_DMA, DPU_CLK_CTRL_DMA1), We must have cursor planes here. Otherwise there will be no hardware cursor. On newer platforms we emulate them using DMA SSPPs. On msm8996 there were two special cursor planes (which supported just SRC, nothing more). Let's have them here, unless there are issues with them. > +}; > + > static const struct dpu_sspp_cfg msm8998_sspp[] = { > SSPP_BLK("sspp_0", SSPP_VIG0, 0x4000, 0x184, VIG_MSM8998_MASK, > msm8998_vig_sblk_0, 0, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG0), [skipped the rest]
On 30/04/2022 22:33, Dmitry Baryshkov wrote: > On 30/04/2022 19:15, Konrad Dybcio wrote: >> Add yaml binding for MSM8996 DPU. >> >> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> >> --- >> .../bindings/display/msm/dpu-msm8996.yaml | 221 ++++++++++++++++++ >> 1 file changed, 221 insertions(+) >> create mode 100644 >> Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml >> >> diff --git >> a/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml >> b/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml >> new file mode 100644 >> index 000000000000..10b02423224d >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml >> @@ -0,0 +1,221 @@ >> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/display/msm/dpu-msm8996.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Qualcomm Display DPU dt properties for MSM8996 target >> + >> +maintainers: >> + - Konrad Dybcio <konrad.dybcio@somainline.org> >> + >> +description: | >> + Device tree bindings for MSM Mobile Display Subsystem (MDSS) that >> + encapsulates sub-blocks like DPU display controller, DSI >> interfaces, etc. >> + Device tree bindings of MDSS and DPU are mentioned for MSM8996 target. >> + >> +properties: >> + compatible: >> + items: >> + - const: qcom,msm8996-mdss > > With the unified MDSS driver there is no need to describe a separate > mdss bindings. Let's skip this part for now. > >> + >> + reg: >> + maxItems: 1 >> + >> + reg-names: >> + const: mdss >> + >> + power-domains: >> + maxItems: 1 >> + >> + clocks: >> + items: >> + - description: Display AHB clock >> + - description: Display core clock >> + >> + clock-names: >> + items: >> + - const: iface >> + - const: core >> + >> + interrupts: >> + maxItems: 1 >> + >> + interrupt-controller: true >> + >> + "#address-cells": true >> + >> + "#size-cells": true >> + >> + "#interrupt-cells": >> + const: 1 >> + >> + iommus: >> + items: >> + - description: Phandle to mdp_smmu node with SID mask for >> Hard-Fail port0 >> + >> + ranges: true >> + >> +patternProperties: >> + "^display-controller@[0-9a-f]+$": >> + type: object >> + description: Node containing the properties of DPU. >> + >> + properties: >> + compatible: >> + items: >> + - const: qcom,msm8996-dpu > > Okay. So, this is the most interesting part. Unlike MSM8998, which is > supported in the mdp5 driver, but was not used in the upstream DTS > files, for the MSM8996 the MDP5 part is described, used and widely > tested. And, unfortunately, the bindings use solely the generic > "qcom,mdp5" compat. > > I would suggest the following plan: > - Define a binding using both "qcom,msm8996-dpu" and "qcom,mdp5" > strings. Make sure that it is fully backwards-compatible with older dts. > > - Update msm8996.dtsi to follow new binding. > > - Let's have a Kconfig flip switch selecting which driver to be used for > 8996/8998. Rob suggested a modparam here.
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml b/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml new file mode 100644 index 000000000000..10b02423224d --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml @@ -0,0 +1,221 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/msm/dpu-msm8996.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Display DPU dt properties for MSM8996 target + +maintainers: + - Konrad Dybcio <konrad.dybcio@somainline.org> + +description: | + Device tree bindings for MSM Mobile Display Subsystem (MDSS) that + encapsulates sub-blocks like DPU display controller, DSI interfaces, etc. + Device tree bindings of MDSS and DPU are mentioned for MSM8996 target. + +properties: + compatible: + items: + - const: qcom,msm8996-mdss + + reg: + maxItems: 1 + + reg-names: + const: mdss + + power-domains: + maxItems: 1 + + clocks: + items: + - description: Display AHB clock + - description: Display core clock + + clock-names: + items: + - const: iface + - const: core + + interrupts: + maxItems: 1 + + interrupt-controller: true + + "#address-cells": true + + "#size-cells": true + + "#interrupt-cells": + const: 1 + + iommus: + items: + - description: Phandle to mdp_smmu node with SID mask for Hard-Fail port0 + + ranges: true + +patternProperties: + "^display-controller@[0-9a-f]+$": + type: object + description: Node containing the properties of DPU. + + properties: + compatible: + items: + - const: qcom,msm8996-dpu + + reg: + items: + - description: Address offset and size for mdp register set + - description: Address offset and size for vbif register set + - description: Address offset and size for non-realtime vbif register set + + reg-names: + items: + - const: mdp + - const: vbif + - const: vbif_nrt + + clocks: + items: + - description: Display ahb clock + - description: Display axi clock + - description: Display core clock + - description: Display iommu clock + - description: Display vsync clock + + clock-names: + items: + - const: iface + - const: bus + - const: core + - const: iommu + - const: vsync + + interrupts: + maxItems: 1 + + power-domains: + maxItems: 1 + + operating-points-v2: true + ports: + $ref: /schemas/graph.yaml#/properties/ports + description: | + Contains the list of output ports from DPU device. These ports + connect to interfaces that are external to the DPU hardware, + such as DSI, DP etc. Each output port contains an endpoint that + describes how it is connected to an external interface. + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: DPU_INTF3 (HDMI) + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: DPU_INTF1 (DSI0) + + required: + - port@0 + - port@1 + + required: + - compatible + - reg + - reg-names + - clocks + - interrupts + - power-domains + - operating-points-v2 + - ports + +required: + - compatible + - reg + - reg-names + - power-domains + - clocks + - interrupts + - interrupt-controller + - iommus + - ranges + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,mmcc-msm8996.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/power/qcom-rpmpd.h> + + mdss: display-subsystem@900000 { + compatible = "qcom,msm8996-mdss"; + reg = <0x00900000 0x1000>; + reg-names = "mdss"; + + power-domains = <&mmcc MDSS_GDSC>; + + clocks = <&mmcc MDSS_AHB_CLK>, <&mmcc MDSS_MDP_CLK>; + clock-names = "iface", "core"; + + assigned-clocks = <&mmcc MDSS_MDP_CLK>; + assigned-clock-rates = <300000000>; + + interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <1>; + + iommus = <&mdp_smmu 0>; + + #address-cells = <1>; + #size-cells = <1>; + ranges; + + display-controller@901000 { + compatible = "qcom,msm8996-dpu"; + reg = <0x00901000 0x90000>, + <0x009b0000 0x1040>, + <0x009b8000 0x1040>; + reg-names = "mdp", "vbif", "vbif_nrt"; + + clocks = <&mmcc MDSS_AHB_CLK>, + <&mmcc MDSS_AXI_CLK>, + <&mmcc MDSS_MDP_CLK>, + <&mmcc SMMU_MDP_AXI_CLK>, + <&mmcc MDSS_VSYNC_CLK>; + clock-names = "iface", "bus", "core", "iommu", "vsync"; + + assigned-clocks = <&mmcc MDSS_MDP_CLK>, + <&mmcc MDSS_VSYNC_CLK>; + assigned-clock-rates = <412500000>, <19200000>; + + operating-points-v2 = <&mdp_opp_table>; + power-domains = <&rpmpd MSM8996_VDDMX>; + + interrupt-parent = <&mdss>; + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dpu_intf3_out: endpoint { + remote-endpoint = <&hdmi_in>; + }; + }; + + port@1 { + reg = <1>; + dpu_intf1_out: endpoint { + remote-endpoint = <&dsi0_in>; + }; + }; + }; + }; + }; +...
Add yaml binding for MSM8996 DPU. Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> --- .../bindings/display/msm/dpu-msm8996.yaml | 221 ++++++++++++++++++ 1 file changed, 221 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-msm8996.yaml