#include <linux/component.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
+#include <linux/media-bus-format.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <drm/drm_bridge.h>
#include <drm/drm_bridge_connector.h>
#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
#include <drm/drm_of.h>
#include <drm/drm_simple_kms_helper.h>
enum mtk_dpi_out_color_format {
MTK_DPI_COLOR_FORMAT_RGB,
- MTK_DPI_COLOR_FORMAT_RGB_FULL,
- MTK_DPI_COLOR_FORMAT_YCBCR_444,
- MTK_DPI_COLOR_FORMAT_YCBCR_422,
- MTK_DPI_COLOR_FORMAT_XV_YCC,
- MTK_DPI_COLOR_FORMAT_YCBCR_444_FULL,
- MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL
+ MTK_DPI_COLOR_FORMAT_YCBCR_422
};
struct mtk_dpi {
u16 c_bottom;
};
+/**
+ * struct mtk_dpi_conf - Configuration of mediatek dpi.
+ * @cal_factor: Callback function to calculate factor value.
+ * @reg_h_fre_con: Register address of frequency control.
+ * @max_clock_khz: Max clock frequency supported for this SoCs in khz units.
+ * @edge_sel_en: Enable of edge selection.
+ * @output_fmts: Array of supported output formats.
+ * @num_output_fmts: Quantity of supported output formats.
+ * @is_ck_de_pol: Support CK/DE polarity.
+ * @swap_input_support: Support input swap function.
+ * @support_direct_pin: IP supports direct connection to dpi panels.
+ * @input_2pixel: Input pixel of dp_intf is 2 pixel per round, so enable this
+ * config to enable this feature.
+ * @dimension_mask: Mask used for HWIDTH, HPORCH, VSYNC_WIDTH and VSYNC_PORCH
+ * (no shift).
+ * @hvsize_mask: Mask of HSIZE and VSIZE mask (no shift).
+ * @channel_swap_shift: Shift value of channel swap.
+ * @yuv422_en_bit: Enable bit of yuv422.
+ * @csc_enable_bit: Enable bit of CSC.
+ * @pixels_per_iter: Quantity of transferred pixels per iteration.
+ */
struct mtk_dpi_conf {
unsigned int (*cal_factor)(int clock);
u32 reg_h_fre_con;
bool edge_sel_en;
const u32 *output_fmts;
u32 num_output_fmts;
+ bool is_ck_de_pol;
+ bool swap_input_support;
+ bool support_direct_pin;
+ bool input_2pixel;
+ u32 dimension_mask;
+ u32 hvsize_mask;
+ u32 channel_swap_shift;
+ u32 yuv422_en_bit;
+ u32 csc_enable_bit;
+ u32 pixels_per_iter;
};
static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
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,
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)
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)
{
- mtk_dpi_mask(dpi, DPI_Y_LIMIT, limit->y_bottom << Y_LIMINT_BOT,
+ struct mtk_dpi_yc_limit limit;
+
+ if (drm_default_rgb_quant_range(&dpi->mode) ==
+ HDMI_QUANTIZATION_RANGE_LIMITED) {
+ limit.y_bottom = 0x10;
+ limit.y_top = 0xfe0;
+ limit.c_bottom = 0x10;
+ limit.c_top = 0xfe0;
+ } else {
+ limit.y_bottom = 0;
+ limit.y_top = 0xfff;
+ limit.c_bottom = 0;
+ limit.c_top = 0xfff;
+ }
+
+ 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,
+ mtk_dpi_mask(dpi, DPI_Y_LIMIT, limit.y_top << Y_LIMINT_TOP,
Y_LIMINT_TOP_MASK);
- mtk_dpi_mask(dpi, DPI_C_LIMIT, limit->c_bottom << C_LIMIT_BOT,
+ mtk_dpi_mask(dpi, DPI_C_LIMIT, limit.c_bottom << C_LIMIT_BOT,
C_LIMIT_BOT_MASK);
- mtk_dpi_mask(dpi, DPI_C_LIMIT, limit->c_top << C_LIMIT_TOP,
+ mtk_dpi_mask(dpi, DPI_C_LIMIT, limit.c_top << C_LIMIT_TOP,
C_LIMIT_TOP_MASK);
}
break;
}
- mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP, CH_SWAP_MASK);
+ mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING,
+ val << dpi->conf->channel_swap_shift,
+ 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)
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);
- 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_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
+
+ if (format == MTK_DPI_COLOR_FORMAT_YCBCR_422) {
mtk_dpi_config_yuv422_enable(dpi, true);
mtk_dpi_config_csc_enable(dpi, true);
- mtk_dpi_config_swap_input(dpi, true);
- mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
+
+ /*
+ * If height is smaller than 720, we need to use RGB_TO_BT601
+ * to transfer to yuv422. Otherwise, we use RGB_TO_JPEG.
+ */
+ mtk_dpi_mask(dpi, DPI_MATRIX_SET, dpi->mode.hdisplay <= 720 ?
+ MATRIX_SEL_RGB_TO_BT601 : MATRIX_SEL_RGB_TO_JPEG,
+ INT_MATRIX_SEL_MASK);
} else {
mtk_dpi_config_yuv422_enable(dpi, false);
mtk_dpi_config_csc_enable(dpi, false);
- mtk_dpi_config_swap_input(dpi, false);
- mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
+ if (dpi->conf->swap_input_support)
+ mtk_dpi_config_swap_input(dpi, false);
}
}
if (dpi->pinctrl && dpi->pins_dpi)
pinctrl_select_state(dpi->pinctrl, dpi->pins_dpi);
- mtk_dpi_enable(dpi);
return 0;
err_pixel:
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 };
clk_set_rate(dpi->tvd_clk, pll_rate);
pll_rate = clk_get_rate(dpi->tvd_clk);
+ /*
+ * Depending on the IP version, we may output a different amount of
+ * pixels for each iteration: divide the clock by this number and
+ * adjust the display porches accordingly.
+ */
vm.pixelclock = pll_rate / factor;
+ vm.pixelclock /= dpi->conf->pixels_per_iter;
+
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);
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;
+
+ /*
+ * Depending on the IP version, we may output a different amount of
+ * pixels for each iteration: divide the clock by this number and
+ * adjust the display porches accordingly.
+ */
+ hsync.sync_width = vm.hsync_len / dpi->conf->pixels_per_iter;
+ hsync.back_porch = vm.hback_porch / dpi->conf->pixels_per_iter;
+ hsync.front_porch = vm.hfront_porch / dpi->conf->pixels_per_iter;
+
hsync.shift_half_line = false;
vsync_lodd.sync_width = vm.vsync_len;
vsync_lodd.back_porch = vm.vback_porch;
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->support_direct_pin) {
+ 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);
+ }
+ if (dpi->conf->input_2pixel) {
+ mtk_dpi_mask(dpi, DPI_CON, DPINTF_INPUT_2P_EN,
+ DPINTF_INPUT_2P_EN);
+ }
mtk_dpi_sw_reset(dpi, false);
return 0;
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;
+ else
+ dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB;
return 0;
}
mtk_dpi_power_on(dpi);
mtk_dpi_set_display_mode(dpi, &dpi->mode);
+ mtk_dpi_enable(dpi);
}
static enum drm_mode_status
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,
};
MEDIA_BUS_FMT_RGB888_2X12_BE,
};
+static const u32 mt8195_output_fmts[] = {
+ MEDIA_BUS_FMT_RGB888_1X24,
+ MEDIA_BUS_FMT_YUYV8_1X16,
+};
+
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),
+ .pixels_per_iter = 1,
+ .is_ck_de_pol = true,
+ .swap_input_support = true,
+ .support_direct_pin = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
};
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),
+ .pixels_per_iter = 1,
+ .is_ck_de_pol = true,
+ .swap_input_support = true,
+ .support_direct_pin = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
};
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),
+ .pixels_per_iter = 1,
+ .is_ck_de_pol = true,
+ .swap_input_support = true,
+ .support_direct_pin = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
};
static const struct mtk_dpi_conf mt8192_conf = {
.max_clock_khz = 150000,
.output_fmts = mt8183_output_fmts,
.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
+ .pixels_per_iter = 1,
+ .is_ck_de_pol = true,
+ .swap_input_support = true,
+ .support_direct_pin = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
+};
+
+static const struct mtk_dpi_conf mt8195_dpintf_conf = {
+ .cal_factor = mt8195_dpintf_calculate_factor,
+ .max_clock_khz = 600000,
+ .output_fmts = mt8195_output_fmts,
+ .num_output_fmts = ARRAY_SIZE(mt8195_output_fmts),
+ .pixels_per_iter = 4,
+ .input_2pixel = 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,
};
static int mtk_dpi_probe(struct platform_device *pdev)
{ .compatible = "mediatek,mt8192-dpi",
.data = &mt8192_conf,
},
+ { .compatible = "mediatek,mt8195-dp-intf",
+ .data = &mt8195_dpintf_conf,
+ },
{ },
};
MODULE_DEVICE_TABLE(of, mtk_dpi_of_ids);
projects / linux-2.6-microblaze.git / blobdiff