[PATCH v7 5/8] drm/mediatek: dpi: Add dpintf support

From: Guillaume Ranquet
Date: Fri Dec 17 2021 - 10:09:32 EST

From: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>

dpintf is the displayport interface hardware unit. This unit is similar
to dpi and can reuse most of the code.

This patch adds support for mt8195-dpintf to this dpi driver. Main
differences are:
- Some features/functional components are not available for dpintf
which are now excluded from code execution once is_dpintf is set
- dpintf can and needs to choose between different clockdividers based
on the clockspeed. This is done by choosing a different clock parent.
- There are two additional clocks that need to be managed. These are
only set for dpintf and will be set to NULL if not supplied. The
clk_* calls handle these as normal clocks then.
- Some register contents differ slightly between the two components. To
work around this I added register bits/masks with a DPINTF_ prefix
and use them where different.

Based on a separate driver for dpintf created by
Jason-JH.Lin <jason-jh.lin@xxxxxxxxxxxx>.

Signed-off-by: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>
Signed-off-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_dpi.c | 304 ++++++++++++++++----
drivers/gpu/drm/mediatek/mtk_dpi_regs.h | 38 +++
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 4 +
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 +
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +-
include/linux/soc/mediatek/mtk-mmsys.h | 2 +
6 files changed, 299 insertions(+), 55 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 4554e2de14309..fbc43ea4049b9 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -63,6 +63,14 @@ enum mtk_dpi_out_color_format {
MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL
};

+enum TVDPLL_CLK {
+ TVDPLL_PLL = 0,
+ TVDPLL_D2 = 2,
+ TVDPLL_D4 = 4,
+ TVDPLL_D8 = 8,
+ TVDPLL_D16 = 16,
+};
+
struct mtk_dpi {
struct drm_encoder encoder;
struct drm_bridge bridge;
@@ -71,8 +79,10 @@ struct mtk_dpi {
void __iomem *regs;
struct device *dev;
struct clk *engine_clk;
+ struct clk *dpi_ck_cg;
struct clk *pixel_clk;
struct clk *tvd_clk;
+ struct clk *pclk_src[5];
int irq;
struct drm_display_mode mode;
const struct mtk_dpi_conf *conf;
@@ -125,6 +135,18 @@ struct mtk_dpi_conf {
bool edge_sel_en;
const u32 *output_fmts;
u32 num_output_fmts;
+ bool is_ck_de_pol;
+ bool is_dpintf;
+ bool csc_support;
+ bool swap_input_support;
+ // Mask used for HWIDTH, HPORCH, VSYNC_WIDTH and VSYNC_PORCH (no shift)
+ u32 dimension_mask;
+ // Mask used for HSIZE and VSIZE (no shift)
+ u32 hvsize_mask;
+ u32 channel_swap_shift;
+ u32 yuv422_en_bit;
+ u32 csc_enable_bit;
+ const struct mtk_dpi_yc_limit *limit;
};

static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
@@ -153,30 +175,30 @@ static void mtk_dpi_disable(struct mtk_dpi *dpi)
static void mtk_dpi_config_hsync(struct mtk_dpi *dpi,
struct mtk_dpi_sync_param *sync)
{
- mtk_dpi_mask(dpi, DPI_TGEN_HWIDTH,
- sync->sync_width << HPW, HPW_MASK);
- mtk_dpi_mask(dpi, DPI_TGEN_HPORCH,
- sync->back_porch << HBP, HBP_MASK);
+ mtk_dpi_mask(dpi, DPI_TGEN_HWIDTH, sync->sync_width << HPW,
+ dpi->conf->dimension_mask << HPW);
+ mtk_dpi_mask(dpi, DPI_TGEN_HPORCH, sync->back_porch << HBP,
+ dpi->conf->dimension_mask << HBP);
mtk_dpi_mask(dpi, DPI_TGEN_HPORCH, sync->front_porch << HFP,
- HFP_MASK);
+ dpi->conf->dimension_mask << HFP);
}

static void mtk_dpi_config_vsync(struct mtk_dpi *dpi,
struct mtk_dpi_sync_param *sync,
u32 width_addr, u32 porch_addr)
{
- mtk_dpi_mask(dpi, width_addr,
- sync->sync_width << VSYNC_WIDTH_SHIFT,
- VSYNC_WIDTH_MASK);
mtk_dpi_mask(dpi, width_addr,
sync->shift_half_line << VSYNC_HALF_LINE_SHIFT,
VSYNC_HALF_LINE_MASK);
+ mtk_dpi_mask(dpi, width_addr,
+ sync->sync_width << VSYNC_WIDTH_SHIFT,
+ dpi->conf->dimension_mask << VSYNC_WIDTH_SHIFT);
mtk_dpi_mask(dpi, porch_addr,
sync->back_porch << VSYNC_BACK_PORCH_SHIFT,
- VSYNC_BACK_PORCH_MASK);
+ dpi->conf->dimension_mask << VSYNC_BACK_PORCH_SHIFT);
mtk_dpi_mask(dpi, porch_addr,
sync->front_porch << VSYNC_FRONT_PORCH_SHIFT,
- VSYNC_FRONT_PORCH_MASK);
+ dpi->conf->dimension_mask << VSYNC_FRONT_PORCH_SHIFT);
}

static void mtk_dpi_config_vsync_lodd(struct mtk_dpi *dpi,
@@ -210,13 +232,20 @@ static void mtk_dpi_config_pol(struct mtk_dpi *dpi,
struct mtk_dpi_polarities *dpi_pol)
{
unsigned int pol;
+ unsigned int mask;

- pol = (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? 0 : CK_POL) |
- (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? 0 : DE_POL) |
- (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) |
+ mask = HSYNC_POL | VSYNC_POL;
+ pol = (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) |
(dpi_pol->vsync_pol == MTK_DPI_POLARITY_RISING ? 0 : VSYNC_POL);
- mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol,
- CK_POL | DE_POL | HSYNC_POL | VSYNC_POL);
+ if (dpi->conf->is_ck_de_pol) {
+ mask |= CK_POL | DE_POL;
+ pol |= (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ?
+ 0 : CK_POL) |
+ (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ?
+ 0 : DE_POL);
+ }
+
+ mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, mask);
}

static void mtk_dpi_config_3d(struct mtk_dpi *dpi, bool en_3d)
@@ -231,13 +260,16 @@ static void mtk_dpi_config_interface(struct mtk_dpi *dpi, bool inter)

static void mtk_dpi_config_fb_size(struct mtk_dpi *dpi, u32 width, u32 height)
{
- mtk_dpi_mask(dpi, DPI_SIZE, width << HSIZE, HSIZE_MASK);
- mtk_dpi_mask(dpi, DPI_SIZE, height << VSIZE, VSIZE_MASK);
+ mtk_dpi_mask(dpi, DPI_SIZE, width << HSIZE,
+ dpi->conf->hvsize_mask << HSIZE);
+ mtk_dpi_mask(dpi, DPI_SIZE, height << VSIZE,
+ dpi->conf->hvsize_mask << VSIZE);
}

-static void mtk_dpi_config_channel_limit(struct mtk_dpi *dpi,
- struct mtk_dpi_yc_limit *limit)
+static void mtk_dpi_config_channel_limit(struct mtk_dpi *dpi)
{
+ const struct mtk_dpi_yc_limit *limit = dpi->conf->limit;
+
mtk_dpi_mask(dpi, DPI_Y_LIMIT, limit->y_bottom << Y_LIMINT_BOT,
Y_LIMINT_BOT_MASK);
mtk_dpi_mask(dpi, DPI_Y_LIMIT, limit->y_top << Y_LIMINT_TOP,
@@ -332,17 +364,20 @@ static void mtk_dpi_config_channel_swap(struct mtk_dpi *dpi,
break;
}

- mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP, CH_SWAP_MASK);
+ mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP,
+ CH_SWAP_MASK << dpi->conf->channel_swap_shift);
}

static void mtk_dpi_config_yuv422_enable(struct mtk_dpi *dpi, bool enable)
{
- mtk_dpi_mask(dpi, DPI_CON, enable ? YUV422_EN : 0, YUV422_EN);
+ mtk_dpi_mask(dpi, DPI_CON, enable ? dpi->conf->yuv422_en_bit : 0,
+ dpi->conf->yuv422_en_bit);
}

static void mtk_dpi_config_csc_enable(struct mtk_dpi *dpi, bool enable)
{
- mtk_dpi_mask(dpi, DPI_CON, enable ? CSC_ENABLE : 0, CSC_ENABLE);
+ mtk_dpi_mask(dpi, DPI_CON, enable ? dpi->conf->csc_enable_bit : 0,
+ dpi->conf->csc_enable_bit);
}

static void mtk_dpi_config_swap_input(struct mtk_dpi *dpi, bool enable)
@@ -361,25 +396,54 @@ static void mtk_dpi_config_disable_edge(struct mtk_dpi *dpi)
mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, 0, EDGE_SEL_EN);
}

+static void mtk_dpi_matrix_sel(struct mtk_dpi *dpi, enum mtk_dpi_out_color_format format)
+{
+ u32 matrix_sel = 0;
+
+ switch (format) {
+ case MTK_DPI_COLOR_FORMAT_YCBCR_422:
+ case MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL:
+ case MTK_DPI_COLOR_FORMAT_YCBCR_444:
+ case MTK_DPI_COLOR_FORMAT_YCBCR_444_FULL:
+ case MTK_DPI_COLOR_FORMAT_XV_YCC:
+ if (dpi->mode.hdisplay <= 720)
+ matrix_sel = 0x2;
+ break;
+ default:
+ break;
+ }
+ mtk_dpi_mask(dpi, DPI_MATRIX_SET, matrix_sel, INT_MATRIX_SEL_MASK);
+}
+
static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
enum mtk_dpi_out_color_format format)
{
if ((format == MTK_DPI_COLOR_FORMAT_YCBCR_444) ||
(format == MTK_DPI_COLOR_FORMAT_YCBCR_444_FULL)) {
mtk_dpi_config_yuv422_enable(dpi, false);
- mtk_dpi_config_csc_enable(dpi, true);
- mtk_dpi_config_swap_input(dpi, false);
+ if (dpi->conf->csc_support) {
+ mtk_dpi_config_csc_enable(dpi, true);
+ mtk_dpi_matrix_sel(dpi, format);
+ }
+ if (dpi->conf->swap_input_support)
+ mtk_dpi_config_swap_input(dpi, false);
mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_BGR);
} else if ((format == MTK_DPI_COLOR_FORMAT_YCBCR_422) ||
(format == MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL)) {
mtk_dpi_config_yuv422_enable(dpi, true);
- mtk_dpi_config_csc_enable(dpi, true);
- mtk_dpi_config_swap_input(dpi, true);
+ if (dpi->conf->csc_support) {
+ mtk_dpi_config_csc_enable(dpi, true);
+ mtk_dpi_matrix_sel(dpi, format);
+ }
+ if (dpi->conf->swap_input_support)
+ mtk_dpi_config_swap_input(dpi, true);
mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
} else {
mtk_dpi_config_yuv422_enable(dpi, false);
- mtk_dpi_config_csc_enable(dpi, false);
- mtk_dpi_config_swap_input(dpi, false);
+ if (dpi->conf->csc_support)
+ mtk_dpi_config_csc_enable(dpi, false);
+ if (dpi->conf->swap_input_support)
+ mtk_dpi_config_swap_input(dpi, false);
mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
}
}
@@ -412,6 +476,8 @@ static void mtk_dpi_power_off(struct mtk_dpi *dpi)
mtk_dpi_disable(dpi);
clk_disable_unprepare(dpi->pixel_clk);
clk_disable_unprepare(dpi->engine_clk);
+ clk_disable_unprepare(dpi->dpi_ck_cg);
+ clk_disable_unprepare(dpi->tvd_clk);
}

static int mtk_dpi_power_on(struct mtk_dpi *dpi)
@@ -421,12 +487,24 @@ static int mtk_dpi_power_on(struct mtk_dpi *dpi)
if (++dpi->refcount != 1)
return 0;

+ ret = clk_prepare_enable(dpi->tvd_clk);
+ if (ret) {
+ dev_err(dpi->dev, "Failed to enable tvd pll: %d\n", ret);
+ goto err_pixel;
+ }
+
ret = clk_prepare_enable(dpi->engine_clk);
if (ret) {
dev_err(dpi->dev, "Failed to enable engine clock: %d\n", ret);
goto err_refcount;
}

+ ret = clk_prepare_enable(dpi->dpi_ck_cg);
+ if (ret) {
+ dev_err(dpi->dev, "Failed to enable dpi_ck_cg clock: %d\n", ret);
+ goto err_ck_cg;
+ }
+
ret = clk_prepare_enable(dpi->pixel_clk);
if (ret) {
dev_err(dpi->dev, "Failed to enable pixel clock: %d\n", ret);
@@ -436,10 +514,11 @@ static int mtk_dpi_power_on(struct mtk_dpi *dpi)
if (dpi->pinctrl && dpi->pins_dpi)
pinctrl_select_state(dpi->pinctrl, dpi->pins_dpi);

- mtk_dpi_enable(dpi);
return 0;

err_pixel:
+ clk_disable_unprepare(dpi->dpi_ck_cg);
+err_ck_cg:
clk_disable_unprepare(dpi->engine_clk);
err_refcount:
dpi->refcount--;
@@ -449,7 +528,6 @@ static int mtk_dpi_power_on(struct mtk_dpi *dpi)
static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
struct drm_display_mode *mode)
{
- struct mtk_dpi_yc_limit limit;
struct mtk_dpi_polarities dpi_pol;
struct mtk_dpi_sync_param hsync;
struct mtk_dpi_sync_param vsync_lodd = { 0 };
@@ -472,32 +550,42 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
pll_rate = clk_get_rate(dpi->tvd_clk);

vm.pixelclock = pll_rate / factor;
- if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||
- (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE))
+ if (dpi->conf->is_dpintf) {
+ if (factor == 1)
+ clk_set_parent(dpi->pixel_clk, dpi->pclk_src[2]);
+ else if (factor == 2)
+ clk_set_parent(dpi->pixel_clk, dpi->pclk_src[3]);
+ else if (factor == 4)
+ clk_set_parent(dpi->pixel_clk, dpi->pclk_src[4]);
+ else
+ clk_set_parent(dpi->pixel_clk, dpi->pclk_src[2]);
+ } else if { ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||
+ (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE))
clk_set_rate(dpi->pixel_clk, vm.pixelclock * 2);
- else
+ } else {
clk_set_rate(dpi->pixel_clk, vm.pixelclock);
-
+ }

vm.pixelclock = clk_get_rate(dpi->pixel_clk);

dev_dbg(dpi->dev, "Got PLL %lu Hz, pixel clock %lu Hz\n",
pll_rate, vm.pixelclock);

- limit.c_bottom = 0x0010;
- limit.c_top = 0x0FE0;
- limit.y_bottom = 0x0010;
- limit.y_top = 0x0FE0;
-
dpi_pol.ck_pol = MTK_DPI_POLARITY_FALLING;
dpi_pol.de_pol = MTK_DPI_POLARITY_RISING;
dpi_pol.hsync_pol = vm.flags & DISPLAY_FLAGS_HSYNC_HIGH ?
MTK_DPI_POLARITY_FALLING : MTK_DPI_POLARITY_RISING;
dpi_pol.vsync_pol = vm.flags & DISPLAY_FLAGS_VSYNC_HIGH ?
MTK_DPI_POLARITY_FALLING : MTK_DPI_POLARITY_RISING;
- hsync.sync_width = vm.hsync_len;
- hsync.back_porch = vm.hback_porch;
- hsync.front_porch = vm.hfront_porch;
+ if (dpi->conf->is_dpintf) {
+ hsync.sync_width = vm.hsync_len / 4;
+ hsync.back_porch = vm.hback_porch / 4;
+ hsync.front_porch = vm.hfront_porch / 4;
+ } else {
+ hsync.sync_width = vm.hsync_len;
+ hsync.back_porch = vm.hback_porch;
+ hsync.front_porch = vm.hfront_porch;
+ }
hsync.shift_half_line = false;
vsync_lodd.sync_width = vm.vsync_len;
vsync_lodd.back_porch = vm.vback_porch;
@@ -536,16 +624,23 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
else
mtk_dpi_config_fb_size(dpi, vm.hactive, vm.vactive);

- mtk_dpi_config_channel_limit(dpi, &limit);
+ mtk_dpi_config_channel_limit(dpi);
mtk_dpi_config_bit_num(dpi, dpi->bit_num);
mtk_dpi_config_channel_swap(dpi, dpi->channel_swap);
- mtk_dpi_config_yc_map(dpi, dpi->yc_map);
mtk_dpi_config_color_format(dpi, dpi->color_format);
- mtk_dpi_config_2n_h_fre(dpi);
- mtk_dpi_dual_edge(dpi);
- mtk_dpi_config_disable_edge(dpi);
+ if (dpi->conf->is_dpintf) {
+ mtk_dpi_mask(dpi, DPI_CON, DPINTF_INPUT_2P_EN,
+ DPINTF_INPUT_2P_EN);
+ } else {
+ mtk_dpi_config_yc_map(dpi, dpi->yc_map);
+ mtk_dpi_config_2n_h_fre(dpi);
+ mtk_dpi_dual_edge(dpi);
+ mtk_dpi_config_disable_edge(dpi);
+ }
mtk_dpi_sw_reset(dpi, false);

+ mtk_dpi_enable(dpi);
+
return 0;
}

@@ -588,7 +683,6 @@ static u32 *mtk_dpi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
u32 *input_fmts;

*num_input_fmts = 0;
-
input_fmts = kcalloc(1, sizeof(*input_fmts),
GFP_KERNEL);
if (!input_fmts)
@@ -614,15 +708,18 @@ static int mtk_dpi_bridge_atomic_check(struct drm_bridge *bridge,
if (dpi->conf->num_output_fmts)
out_bus_format = dpi->conf->output_fmts[0];

- dev_dbg(dpi->dev, "input format 0x%04x, output format 0x%04x\n",
- bridge_state->input_bus_cfg.format,
- bridge_state->output_bus_cfg.format);
+ dev_info(dpi->dev, "input format 0x%04x, output format 0x%04x\n",
+ bridge_state->input_bus_cfg.format,
+ bridge_state->output_bus_cfg.format);

dpi->output_fmt = out_bus_format;
dpi->bit_num = MTK_DPI_OUT_BIT_NUM_8BITS;
dpi->channel_swap = MTK_DPI_OUT_CHANNEL_SWAP_RGB;
dpi->yc_map = MTK_DPI_OUT_YC_MAP_RGB;
- dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB;
+ if (out_bus_format == MEDIA_BUS_FMT_YUYV8_1X16)
+ dpi->color_format = MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL;
+ else
+ dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB;

return 0;
}
@@ -667,7 +764,7 @@ mtk_dpi_bridge_mode_valid(struct drm_bridge *bridge,
{
struct mtk_dpi *dpi = bridge_to_dpi(bridge);

- if (mode->clock > dpi->conf->max_clock_khz)
+ if (dpi->conf->max_clock_khz && mode->clock > dpi->conf->max_clock_khz)
return MODE_CLOCK_HIGH;

return MODE_OK;
@@ -781,6 +878,16 @@ static unsigned int mt8183_calculate_factor(int clock)
return 2;
}

+static unsigned int mt8195_dpintf_calculate_factor(int clock)
+{
+ if (clock < 70000)
+ return 4;
+ else if (clock < 200000)
+ return 2;
+ else
+ return 1;
+}
+
static const u32 mt8173_output_fmts[] = {
MEDIA_BUS_FMT_RGB888_1X24,
};
@@ -790,12 +897,41 @@ static const u32 mt8183_output_fmts[] = {
MEDIA_BUS_FMT_RGB888_2X12_BE,
};

+static const u32 mt8195_output_fmts[] = {
+ MEDIA_BUS_FMT_RGB888_1X24,
+ MEDIA_BUS_FMT_YUV8_1X24,
+ MEDIA_BUS_FMT_YUYV8_1X16,
+};
+
+static const struct mtk_dpi_yc_limit mtk_dpi_limit = {
+ .c_bottom = 0x0010,
+ .c_top = 0x0FE0,
+ .y_bottom = 0x0010,
+ .y_top = 0x0FE0,
+};
+
+static const struct mtk_dpi_yc_limit mtk_dpintf_limit = {
+ .c_bottom = 0x0000,
+ .c_top = 0xFFF,
+ .y_bottom = 0x0000,
+ .y_top = 0xFFF,
+};
+
static const struct mtk_dpi_conf mt8173_conf = {
.cal_factor = mt8173_calculate_factor,
.reg_h_fre_con = 0xe0,
.max_clock_khz = 300000,
.output_fmts = mt8173_output_fmts,
.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
+ .is_ck_de_pol = true,
+ .csc_support = true,
+ .swap_input_support = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
+ .limit = &mtk_dpi_limit,
};

static const struct mtk_dpi_conf mt2701_conf = {
@@ -805,6 +941,15 @@ static const struct mtk_dpi_conf mt2701_conf = {
.max_clock_khz = 150000,
.output_fmts = mt8173_output_fmts,
.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
+ .is_ck_de_pol = true,
+ .csc_support = true,
+ .swap_input_support = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
+ .limit = &mtk_dpi_limit,
};

static const struct mtk_dpi_conf mt8183_conf = {
@@ -813,6 +958,15 @@ static const struct mtk_dpi_conf mt8183_conf = {
.max_clock_khz = 100000,
.output_fmts = mt8183_output_fmts,
.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
+ .is_ck_de_pol = true,
+ .csc_support = true,
+ .swap_input_support = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
+ .limit = &mtk_dpi_limit,
};

static const struct mtk_dpi_conf mt8192_conf = {
@@ -821,6 +975,29 @@ static const struct mtk_dpi_conf mt8192_conf = {
.max_clock_khz = 150000,
.output_fmts = mt8173_output_fmts,
.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
+ .is_ck_de_pol = true,
+ .csc_support = true,
+ .swap_input_support = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
+ .limit = &mtk_dpi_limit,
+};
+
+static const struct mtk_dpi_conf mt8195_dpintf_conf = {
+ .cal_factor = mt8195_dpintf_calculate_factor,
+ .output_fmts = mt8195_output_fmts,
+ .num_output_fmts = ARRAY_SIZE(mt8195_output_fmts),
+ .is_dpintf = true,
+ .csc_support = true,
+ .dimension_mask = DPINTF_HPW_MASK,
+ .hvsize_mask = DPINTF_HSIZE_MASK,
+ .channel_swap_shift = DPINTF_CH_SWAP,
+ .yuv422_en_bit = DPINTF_YUV422_EN,
+ .csc_enable_bit = DPINTF_CSC_ENABLE,
+ .limit = &mtk_dpintf_limit,
};

static int mtk_dpi_probe(struct platform_device *pdev)
@@ -870,7 +1047,18 @@ static int mtk_dpi_probe(struct platform_device *pdev)
if (IS_ERR(dpi->engine_clk)) {
ret = PTR_ERR(dpi->engine_clk);
if (ret != -EPROBE_DEFER)
- dev_err(dev, "Failed to get engine clock: %d\n", ret);
+ dev_err(dev, "Failed to get engine clock: %d\n",
+ ret);
+
+ return ret;
+ }
+
+ dpi->dpi_ck_cg = devm_clk_get_optional(dev, "ck_cg");
+ if (IS_ERR(dpi->dpi_ck_cg)) {
+ ret = PTR_ERR(dpi->dpi_ck_cg);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get dpi ck cg clock: %d\n",
+ ret);

return ret;
}
@@ -893,6 +1081,11 @@ static int mtk_dpi_probe(struct platform_device *pdev)
return ret;
}

+ dpi->pclk_src[1] = devm_clk_get(dev, "TVDPLL_D2");
+ dpi->pclk_src[2] = devm_clk_get(dev, "TVDPLL_D4");
+ dpi->pclk_src[3] = devm_clk_get(dev, "TVDPLL_D8");
+ dpi->pclk_src[4] = devm_clk_get(dev, "TVDPLL_D16");
+
dpi->irq = platform_get_irq(pdev, 0);
if (dpi->irq <= 0)
return -EINVAL;
@@ -945,6 +1138,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = {
{ .compatible = "mediatek,mt8192-dpi",
.data = &mt8192_conf,
},
+ { .compatible = "mediatek,mt8195-dpintf",
+ .data = &mt8195_dpintf_conf,
+ },
{ },
};
MODULE_DEVICE_TABLE(of, mtk_dpi_of_ids);
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
index 3a02fabe16627..91b32dfffced2 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
+++ b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
@@ -40,10 +40,15 @@
#define FAKE_DE_LEVEN BIT(21)
#define FAKE_DE_RODD BIT(22)
#define FAKE_DE_REVEN BIT(23)
+#define DPINTF_YUV422_EN BIT(24)
+#define DPINTF_CSC_ENABLE BIT(26)
+#define DPINTF_INPUT_2P_EN BIT(29)

#define DPI_OUTPUT_SETTING 0x14
#define CH_SWAP 0
+#define DPINTF_CH_SWAP BIT(1)
#define CH_SWAP_MASK (0x7 << 0)
+#define DPINTF_CH_SWAP_MASK (0x7 << 1)
#define SWAP_RGB 0x00
#define SWAP_GBR 0x01
#define SWAP_BRG 0x02
@@ -80,8 +85,10 @@
#define DPI_SIZE 0x18
#define HSIZE 0
#define HSIZE_MASK (0x1FFF << 0)
+#define DPINTF_HSIZE_MASK (0xFFFF << 0)
#define VSIZE 16
#define VSIZE_MASK (0x1FFF << 16)
+#define DPINTF_VSIZE_MASK (0xFFFF << 16)

#define DPI_DDR_SETTING 0x1C
#define DDR_EN BIT(0)
@@ -93,24 +100,30 @@
#define DPI_TGEN_HWIDTH 0x20
#define HPW 0
#define HPW_MASK (0xFFF << 0)
+#define DPINTF_HPW_MASK (0xFFFF << 0)

#define DPI_TGEN_HPORCH 0x24
#define HBP 0
#define HBP_MASK (0xFFF << 0)
+#define DPINTF_HBP_MASK (0xFFFF << 0)
#define HFP 16
#define HFP_MASK (0xFFF << 16)
+#define DPINTF_HFP_MASK (0xFFFF << 16)

#define DPI_TGEN_VWIDTH 0x28
#define DPI_TGEN_VPORCH 0x2C

#define VSYNC_WIDTH_SHIFT 0
#define VSYNC_WIDTH_MASK (0xFFF << 0)
+#define DPINTF_VSYNC_WIDTH_MASK (0xFFFF << 0)
#define VSYNC_HALF_LINE_SHIFT 16
#define VSYNC_HALF_LINE_MASK BIT(16)
#define VSYNC_BACK_PORCH_SHIFT 0
#define VSYNC_BACK_PORCH_MASK (0xFFF << 0)
+#define DPINTF_VSYNC_BACK_PORCH_MASK (0xFFFF << 0)
#define VSYNC_FRONT_PORCH_SHIFT 16
#define VSYNC_FRONT_PORCH_MASK (0xFFF << 16)
+#define DPINTF_VSYNC_FRONT_PORCH_MASK (0xFFFF << 16)

#define DPI_BG_HCNTL 0x30
#define BG_RIGHT (0x1FFF << 0)
@@ -217,4 +230,29 @@

#define EDGE_SEL_EN BIT(5)
#define H_FRE_2N BIT(25)
+
+#define DPI_MATRIX_SET 0xB4
+#define INT_MATRIX_SEL BIT(0)
+#define INT_MATRIX_SEL_MASK (0x1F << 0)
+#define RGB_TO_JPEG 0x00
+#define RGB_TO_FULL709 0x01
+#define RGB_TO_BT601 0x02
+#define RGB_TO_BT709 0x03
+#define JPEG_TO_RGB 0x04
+#define FULL709_TO_RGB 0x05
+#define BT601_TO_RGB 0x06
+#define BT709_TO_RGB 0x07
+#define JPEG_TO_BT601 0x08
+#define JPEG_TO_BT709 0x09
+#define BT601_TO_JPEG 0xA
+#define BT709_TO_JPEG 0xB
+#define BT709_TO_BT601 0xC
+#define BT601_TO_BT709 0xD
+#define JPEG_TO_CERGB 0x14
+#define FULL709_TO_CERGB 0x15
+#define BT601_TO_CERGB 0x16
+#define BT709_TO_CERGB 0x17
+#define RGB_TO_CERGB 0x1C
+#define MATRIX_BIT BIT(8)
+#define EXT_MATRIX_EN BIT(12)
#endif /* __MTK_DPI_REGS_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 99cbf44463e40..0a9fc9d6d3cb3 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -317,6 +317,7 @@ static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = {
[MTK_DISP_UFOE] = "ufoe",
[MTK_DSI] = "dsi",
[MTK_DPI] = "dpi",
+ [MTK_DP_INTF] = "dp-intf",
[MTK_DISP_PWM] = "pwm",
[MTK_DISP_MUTEX] = "mutex",
[MTK_DISP_OD] = "od",
@@ -339,6 +340,8 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
[DDP_COMPONENT_DITHER] = { MTK_DISP_DITHER, 0, &ddp_dither },
[DDP_COMPONENT_DPI0] = { MTK_DPI, 0, &ddp_dpi },
[DDP_COMPONENT_DPI1] = { MTK_DPI, 1, &ddp_dpi },
+ [DDP_COMPONENT_DP_INTF0] = { MTK_DP_INTF, 0, &ddp_dpi },
+ [DDP_COMPONENT_DP_INTF1] = { MTK_DP_INTF, 1, &ddp_dpi },
[DDP_COMPONENT_DSI0] = { MTK_DSI, 0, &ddp_dsi },
[DDP_COMPONENT_DSI1] = { MTK_DSI, 1, &ddp_dsi },
[DDP_COMPONENT_DSI2] = { MTK_DSI, 2, &ddp_dsi },
@@ -476,6 +479,7 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
type == MTK_DISP_COLOR ||
type == MTK_DISP_GAMMA ||
type == MTK_DPI ||
+ type == MTK_DP_INTF ||
type == MTK_DSI ||
type == MTK_DISP_OVL ||
type == MTK_DISP_OVL_2L ||
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index bb914d976cf5d..ee9d853cfa1c1 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -30,6 +30,7 @@ enum mtk_ddp_comp_type {
MTK_DISP_UFOE,
MTK_DSI,
MTK_DPI,
+ MTK_DP_INTF,
MTK_DISP_PWM,
MTK_DISP_MUTEX,
MTK_DISP_OD,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index aec39724ebeb6..1ff4e31c86345 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -459,6 +459,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
.data = (void *)MTK_DPI },
{ .compatible = "mediatek,mt8183-dpi",
.data = (void *)MTK_DPI },
+ { .compatible = "mediatek,mt8195-dpintf",
+ .data = (void *)MTK_DP_INTF },
{ .compatible = "mediatek,mt2701-disp-mutex",
.data = (void *)MTK_DISP_MUTEX },
{ .compatible = "mediatek,mt2712-disp-mutex",
@@ -569,7 +571,8 @@ static int mtk_drm_probe(struct platform_device *pdev)
comp_type == MTK_DISP_OVL_2L ||
comp_type == MTK_DISP_RDMA ||
comp_type == MTK_DSI ||
- comp_type == MTK_DPI) {
+ comp_type == MTK_DPI ||
+ comp_type == MTK_DP_INTF) {
dev_info(dev, "Adding component match for %pOF\n",
node);
drm_of_component_match_add(dev, &match, compare_of,
diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h
index 4bba275e235ac..56ed2fa5f59e8 100644
--- a/include/linux/soc/mediatek/mtk-mmsys.h
+++ b/include/linux/soc/mediatek/mtk-mmsys.h
@@ -19,6 +19,8 @@ enum mtk_ddp_comp_id {
DDP_COMPONENT_DITHER,
DDP_COMPONENT_DPI0,
DDP_COMPONENT_DPI1,
+ DDP_COMPONENT_DP_INTF0,
+ DDP_COMPONENT_DP_INTF1,
DDP_COMPONENT_DSI0,
DDP_COMPONENT_DSI1,
DDP_COMPONENT_DSI2,
--
2.32.0