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Subject[PATCH 2/3] drm/msm/disp: dpu1: Add MSM8996 support
Date
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))
+
#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},
+ .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);
+
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),
+};
+
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,
+ },
+ },
+};
+
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", },
{ .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 },
{ .compatible = "qcom,msm8998-mdss", .data = (void *)KMS_DPU },
{ .compatible = "qcom,qcm2290-mdss", .data = (void *)KMS_DPU },
{ .compatible = "qcom,sdm845-mdss", .data = (void *)KMS_DPU },
--
2.35.2
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