nt35950: final
This commit is contained in:
AngeloGioacchino Del Regno
Jami Kettunen
parent
09588133d4
commit
5f9d2ce95d
1 changed files with 205 additions and 115 deletions
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@ -2,7 +2,7 @@
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/*
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* Novatek NT35950 DriverIC panels driver
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*
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* Copyright (c) 2020 AngeloGioacchino Del Regno
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* Copyright (c) 2021 AngeloGioacchino Del Regno
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* <angelogioacchino.delregno@somainline.org>
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*/
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#include <linux/delay.h>
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@ -12,47 +12,76 @@
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#include <linux/of_graph.h>
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#include <linux/regulator/consumer.h>
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#include <drm/drm_connector.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_modes.h>
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#include <drm/drm_panel.h>
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#define MCS_CMD_MAUCCTR 0xF0 /* Manufacturer command enable */
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#define MCS_PARAM_SCALER_FUNCTION 0x58
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#define MCS_CMD_MAUCCTR 0xf0 /* Manufacturer command enable */
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#define MCS_PARAM_SCALER_FUNCTION 0x58 /* Scale-up function */
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#define MCS_PARAM_SCALEUP_MODE 0xc9
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#define MCS_SCALEUP_SIMPLE 0x0
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#define MCS_SCALEUP_BILINEAR BIT(0)
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#define MCS_SCALEUP_DUPLICATE BIT(0) | BIT(4)
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/* VESA Display Stream Compression param */
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#define MCS_PARAM_VESA_DSC_ON 0x03
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/* Data Compression mode */
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#define MCS_PARAM_DATA_COMPRESSION 0x90
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#define MCS_DATA_COMPRESSION_NONE 0x00
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#define MCS_DATA_COMPRESSION_FBC 0x02
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#define MCS_DATA_COMPRESSION_DSC 0x03
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/* Display Output control */
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#define MCS_PARAM_DISP_OUTPUT_CTRL 0xb4
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#define MCS_DISP_OUT_SRAM_EN BIT(0)
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#define MCS_DISP_OUT_VIDEO_MODE BIT(4)
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/* VESA Display Stream Compression setting */
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#define MCS_PARAM_VESA_DSC_SETTING 0xc0
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/* SubPixel Rendering (SPR) */
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#define MCS_PARAM_SPR_EN 0xe3
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#define MCS_PARAM_SPR_MODE 0xef
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#define MCS_SPR_MODE_YYG_RAINBOW_RGB 0x01
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#define NT35950_VREG_MAX 6
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#define NT35950_VREG_MAX 4
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struct nt35950 {
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struct drm_panel panel;
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struct drm_connector *connector;
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struct mipi_dsi_device *dsi[2];
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struct regulator_bulk_data vregs[NT35950_VREG_MAX];
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struct gpio_desc *reset_gpio;
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const struct nt35950_panel_desc *desc;
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int cur_mode;
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u8 last_page;
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bool prepared;
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};
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struct nt35950_panel_modes {
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const struct drm_display_mode mode;
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bool enable_sram;
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bool is_video_mode;
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u8 scaler_on;
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u8 scaler_mode;
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u8 compression;
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u8 spr_en;
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u8 spr_mode;
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};
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struct nt35950_panel_desc {
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const char* model_name;
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const struct mipi_dsi_device_info dsi_info;
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const struct drm_display_mode *modes;
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u8 num_lanes;
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const struct nt35950_panel_modes *mode_data;
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bool enable_sram;
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bool is_video_mode;
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bool is_dual_dsi;
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u8 num_lanes;
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u8 num_modes;
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};
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static inline struct nt35950 *to_nt35950(struct drm_panel *panel)
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@ -89,9 +118,15 @@ static int nt35950_set_cmd2_page(struct nt35950 *nt, u8 page)
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{
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const u8 mauc_cmd2_page[] = { MCS_CMD_MAUCCTR, 0x55, 0xaa, 0x52,
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0x08, page };
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int ret;
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return mipi_dsi_dcs_write_buffer(nt->dsi[0], mauc_cmd2_page,
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ARRAY_SIZE(mauc_cmd2_page));
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ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], mauc_cmd2_page,
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ARRAY_SIZE(mauc_cmd2_page));
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if (ret < 0)
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return ret;
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nt->last_page = page;
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return 0;
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}
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/*
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@ -104,15 +139,47 @@ static int nt35950_set_cmd2_page(struct nt35950 *nt, u8 page)
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static int nt35950_set_data_compression(struct nt35950 *nt, u8 comp_mode)
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{
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u8 cmd_data_compression[] = { MCS_PARAM_DATA_COMPRESSION, comp_mode };
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u8 cmd_vesa_dsc_on[] = { MCS_PARAM_VESA_DSC_ON, !!comp_mode };
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u8 cmd_vesa_dsc_setting[] = { MCS_PARAM_VESA_DSC_SETTING, 0x03 };
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u8 last_page = nt->last_page;
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int ret;
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return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_data_compression,
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/* Set CMD2 Page 0 if we're not there yet */
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if (last_page != 0) {
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ret = nt35950_set_cmd2_page(nt, 0);
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if (ret < 0)
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return ret;
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}
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ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_data_compression,
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ARRAY_SIZE(cmd_data_compression));
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if (ret < 0)
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return ret;
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ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_vesa_dsc_on,
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ARRAY_SIZE(cmd_vesa_dsc_on));
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if (ret < 0)
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return ret;
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/* Set the vesa dsc setting on Page 4 */
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ret = nt35950_set_cmd2_page(nt, 4);
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if (ret < 0)
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return ret;
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/* Display Stream Compression setting, always 0x03 */
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ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_vesa_dsc_setting,
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ARRAY_SIZE(cmd_vesa_dsc_setting));
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if (ret < 0)
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return ret;
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/* Get back to the previously set page */
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return nt35950_set_cmd2_page(nt, last_page);
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}
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/*
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* nt35950_set_scaler - Enable/disable resolution upscaling
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* @nt: Main driver structure
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* @comp_mode: Compression mode
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* @scale_up: Scale up function control
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*
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* Returns: Number of transferred bytes or negative number on error
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*/
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@ -124,6 +191,22 @@ static int nt35950_set_scaler(struct nt35950 *nt, u8 scale_up)
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ARRAY_SIZE(cmd_scaler));
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}
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/*
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* nt35950_set_scale_mode - Resolution upscaling mode
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* @nt: Main driver structure
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* @mode: Scaler mode
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*
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* Returns: Number of transferred bytes or negative number on error
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*/
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static int nt35950_set_scale_mode(struct nt35950 *nt, u8 mode)
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{
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u8 cmd_scaler[] = { MCS_PARAM_SCALEUP_MODE, mode };
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return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_scaler,
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ARRAY_SIZE(cmd_scaler));
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}
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static int nt35950_inject_black_image(struct nt35950 *nt)
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{
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const u8 cmd0_black_img[] = { 0x6f, 0x01 };
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@ -151,8 +234,6 @@ static int nt35950_inject_black_image(struct nt35950 *nt)
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return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_test, test_sz);
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}
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static const int nt35950_test_cmd_en[] = { 0xff, 0xaa, 0x55, 0xa5, 0x80 };
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/*
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* nt35950_set_dispout - Set Display Output register parameters
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* @nt: Main driver structure
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@ -162,47 +243,63 @@ static const int nt35950_test_cmd_en[] = { 0xff, 0xaa, 0x55, 0xa5, 0x80 };
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static int nt35950_set_dispout(struct nt35950 *nt)
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{
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u8 cmd_dispout[] = { MCS_PARAM_DISP_OUTPUT_CTRL, 0x00 };
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const struct nt35950_panel_modes *mode_data = nt->desc->mode_data;
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if (nt->desc->is_video_mode)
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if (mode_data[nt->cur_mode].is_video_mode)
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cmd_dispout[1] |= MCS_DISP_OUT_VIDEO_MODE;
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if (nt->desc->enable_sram)
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if (mode_data[nt->cur_mode].enable_sram)
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cmd_dispout[1] |= MCS_DISP_OUT_SRAM_EN;
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return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_dispout,
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ARRAY_SIZE(cmd_dispout));
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}
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static int nt35950_get_current_mode(struct nt35950 *nt)
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{
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struct drm_connector *connector = nt->connector;
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struct drm_crtc_state *crtc_state;
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int i;
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/* Return the default (first) mode if no info available yet */
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if (!connector->state || !connector->state->crtc)
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return 0;
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crtc_state = connector->state->crtc->state;
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for (i = 0; i < nt->desc->num_modes; i++) {
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if (drm_mode_match(&crtc_state->mode,
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&nt->desc->mode_data[i].mode,
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DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_CLOCK))
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return i;
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}
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return 0;
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}
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static int nt35950_on(struct nt35950 *nt)
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{
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const struct nt35950_panel_modes *mode_data = nt->desc->mode_data;
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struct mipi_dsi_device *dsi = nt->dsi[0];
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struct device *dev = &dsi->dev;
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int ret;
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nt->cur_mode = nt35950_get_current_mode(nt);
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nt->dsi[0]->mode_flags |= MIPI_DSI_MODE_LPM;
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nt->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM;
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ret = nt35950_set_cmd2_page(nt, 7);
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if (ret < 0)
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return ret;
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/* Enable SubPixel Rendering */
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dsi_dcs_write_seq(dsi, MCS_PARAM_SPR_EN, 0x01);
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/* SPR Mode: YYG Rainbow-RGB */
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dsi_dcs_write_seq(dsi, MCS_PARAM_SPR_MODE, 0x01);
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ret = nt35950_set_cmd2_page(nt, 0);
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if (ret < 0)
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return ret;
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/* This is unknown... */
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dsi_dcs_write_seq(dsi, 0xc9, 0x01);
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ret = nt35950_set_data_compression(nt, MCS_DATA_COMPRESSION_NONE);
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ret = nt35950_set_data_compression(nt, mode_data[nt->cur_mode].compression);
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if (ret < 0)
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return ret;
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ret = nt35950_set_scaler(nt, 1);
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ret = nt35950_set_scale_mode(nt, mode_data[nt->cur_mode].scaler_mode);
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if (ret < 0)
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return ret;
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ret = nt35950_set_scaler(nt, mode_data[nt->cur_mode].scaler_on);
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if (ret < 0)
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return ret;
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@ -210,12 +307,6 @@ static int nt35950_on(struct nt35950 *nt)
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if (ret < 0)
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return ret;
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/* Frame rate setting for 60hz */
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dsi_dcs_write_seq(dsi, 0xbd,
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0x00, 0xac, 0x0c, 0x0c, 0x00,
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0x01, 0x56, 0x09, 0x09, 0x01,
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0x01, 0x0c, 0x0c, 0x00, 0xd9);
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ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
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if (ret < 0) {
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dev_err(dev, "Failed to set tear on: %d\n", ret);
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@ -233,8 +324,20 @@ static int nt35950_on(struct nt35950 *nt)
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if (ret < 0)
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return ret;
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/* Unknown command */
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dsi_dcs_write_seq(dsi, 0xd4, 0x88, 0x88);
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/* CMD2 Page 7 */
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ret = nt35950_set_cmd2_page(nt, 7);
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if (ret < 0)
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return ret;
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/* Enable SubPixel Rendering */
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dsi_dcs_write_seq(dsi, MCS_PARAM_SPR_EN, 0x01);
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/* SPR Mode: YYG Rainbow-RGB */
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dsi_dcs_write_seq(dsi, MCS_PARAM_SPR_MODE, MCS_SPR_MODE_YYG_RAINBOW_RGB);
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/* CMD3 */
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ret = nt35950_inject_black_image(nt);
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if (ret < 0)
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@ -264,17 +367,18 @@ static int nt35950_off(struct nt35950 *nt)
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ret = mipi_dsi_dcs_set_display_off(nt->dsi[0]);
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if (ret < 0) {
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dev_err(dev, "Failed to set display off: %d\n", ret);
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return ret;
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goto set_lpm;
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}
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usleep_range(10000, 11000);
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ret = mipi_dsi_dcs_enter_sleep_mode(nt->dsi[0]);
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if (ret < 0) {
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dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
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return ret;
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goto set_lpm;
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}
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msleep(150);
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set_lpm:
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nt->dsi[0]->mode_flags |= MIPI_DSI_MODE_LPM;
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nt->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM;
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@ -287,11 +391,9 @@ static int nt35950_sharp_init_vregs(struct nt35950 *nt, struct device *dev)
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int ret;
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nt->vregs[0].supply = "vddio";
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nt->vregs[1].supply = "tvddio";
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nt->vregs[2].supply = "tavdd";
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nt->vregs[3].supply = "avdd";
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nt->vregs[4].supply = "avee";
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nt->vregs[5].supply = "dvdd";
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nt->vregs[1].supply = "avdd";
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nt->vregs[2].supply = "avee";
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nt->vregs[3].supply = "dvdd";
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ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(nt->vregs),
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nt->vregs);
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if (ret < 0) {
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@ -304,24 +406,16 @@ static int nt35950_sharp_init_vregs(struct nt35950 *nt, struct device *dev)
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if (!ret)
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return ret;
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ret = regulator_is_supported_voltage(nt->vregs[1].consumer,
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1750000, 1950000);
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if (!ret)
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return ret;
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ret = regulator_is_supported_voltage(nt->vregs[2].consumer,
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2800000, 3300000);
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if (!ret)
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return ret;
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ret = regulator_is_supported_voltage(nt->vregs[3].consumer,
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5200000, 5900000);
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if (!ret)
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return ret;
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/* AVEE is negative: -5.90V to -5.20V */
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ret = regulator_is_supported_voltage(nt->vregs[4].consumer,
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ret = regulator_is_supported_voltage(nt->vregs[2].consumer,
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5200000, 5900000);
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if (!ret)
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return ret;
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return regulator_is_supported_voltage(nt->vregs[5].consumer,
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return regulator_is_supported_voltage(nt->vregs[3].consumer,
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1300000, 1400000);
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}
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@ -334,35 +428,24 @@ static int nt35950_prepare(struct drm_panel *panel)
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if (nt->prepared)
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return 0;
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/* vio */
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ret = regulator_enable(nt->vregs[0].consumer);
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if (ret)
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return ret;
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usleep_range(2000, 5000);
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/* DVDD */
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ret = regulator_enable(nt->vregs[5].consumer);
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ret = regulator_enable(nt->vregs[3].consumer);
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if (ret)
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return ret;
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usleep_range(15000, 18000);
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/* vsp/vsn*/
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ret = regulator_enable(nt->vregs[3].consumer);
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if (ret)
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return ret;
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ret = regulator_enable(nt->vregs[4].consumer);
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if (ret)
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return ret;
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usleep_range(12000, 13000);
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/* touch - remove me */
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ret = regulator_enable(nt->vregs[1].consumer);
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if (ret)
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return ret;
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ret = regulator_enable(nt->vregs[2].consumer);
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if (ret)
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return ret;
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usleep_range(15000, 16000);
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usleep_range(12000, 13000);
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nt35950_reset(nt);
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@ -397,39 +480,35 @@ static int nt35950_unprepare(struct drm_panel *panel)
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return 0;
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}
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static const struct drm_display_mode nt35950_mode = {
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/* TODO: Declare 4k */
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.name = "1080x1920",
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.clock = (1080 + 400 + 40 + 300) * (1920 + 12 + 2 + 10) * 60 / 1000,
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.hdisplay = 1080,
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.hsync_start = 1080 + 400,
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.hsync_end = 1080 + 400 + 40,
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.htotal = 1080 + 400 + 40 + 300,
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.vdisplay = 1920,
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.vsync_start = 1920 + 12,
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.vsync_end = 1920 + 12 + 2,
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.vtotal = 1920 + 12 + 2 + 10,
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.width_mm = 68,
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.height_mm = 121,
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};
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static int nt35950_get_modes(struct drm_panel *panel,
|
||||
struct drm_connector *connector)
|
||||
{
|
||||
struct drm_display_mode *mode;
|
||||
struct nt35950 *nt = to_nt35950(panel);
|
||||
int i;
|
||||
|
||||
mode = drm_mode_duplicate(connector->dev, &nt35950_mode);
|
||||
if (!mode)
|
||||
return -ENOMEM;
|
||||
for (i = 0; i < nt->desc->num_modes; i++) {
|
||||
struct drm_display_mode *mode;
|
||||
|
||||
drm_mode_set_name(mode);
|
||||
mode = drm_mode_duplicate(connector->dev,
|
||||
&nt->desc->mode_data[i].mode);
|
||||
if (!mode)
|
||||
return -ENOMEM;
|
||||
|
||||
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
|
||||
connector->display_info.width_mm = mode->width_mm;
|
||||
connector->display_info.height_mm = mode->height_mm;
|
||||
drm_mode_probed_add(connector, mode);
|
||||
drm_mode_set_name(mode);
|
||||
|
||||
return 1;
|
||||
mode->type |= DRM_MODE_TYPE_DRIVER;
|
||||
if (nt->desc->num_modes == 1)
|
||||
mode->type |= DRM_MODE_TYPE_PREFERRED;
|
||||
|
||||
drm_mode_probed_add(connector, mode);
|
||||
}
|
||||
|
||||
connector->display_info.bpc = 8;
|
||||
connector->display_info.height_mm = nt->desc->mode_data[0].mode.height_mm;
|
||||
connector->display_info.width_mm = nt->desc->mode_data[0].mode.width_mm;
|
||||
nt->connector = connector;
|
||||
|
||||
return nt->desc->num_modes;
|
||||
}
|
||||
|
||||
static const struct drm_panel_funcs nt35950_panel_funcs = {
|
||||
|
|
@ -452,8 +531,10 @@ static int nt35950_probe(struct mipi_dsi_device *dsi)
|
|||
return -ENOMEM;
|
||||
|
||||
ret = nt35950_sharp_init_vregs(nt, dev);
|
||||
if (ret && ret != -EPROBE_DEFER)
|
||||
dev_err(dev, "Regulator init failure: %d -- NO FAILURE: DEVELOPMENT MODE\n", ret);
|
||||
if (ret <= 0 && ret != -EPROBE_DEFER) {
|
||||
dev_err(dev, "Regulator init failure.\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
nt->desc = of_device_get_match_data(dev);
|
||||
if (!nt->desc)
|
||||
|
|
@ -509,7 +590,7 @@ static int nt35950_probe(struct mipi_dsi_device *dsi)
|
|||
MIPI_DSI_CLOCK_NON_CONTINUOUS |
|
||||
MIPI_DSI_MODE_LPM;
|
||||
|
||||
if (nt->desc->is_video_mode)
|
||||
if (nt->desc->mode_data[0].is_video_mode)
|
||||
nt->dsi[i]->mode_flags |= MIPI_DSI_MODE_VIDEO;
|
||||
|
||||
ret = mipi_dsi_attach(nt->dsi[i]);
|
||||
|
|
@ -548,20 +629,30 @@ static int nt35950_remove(struct mipi_dsi_device *dsi)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static const struct drm_display_mode sharp_ls055d1sx04_modes = {
|
||||
/* TODO: Declare 2160x3840 mode when FBC/DSC will be working. */
|
||||
.name = "1080x1920",
|
||||
.clock = (1080 + 400 + 40 + 300) * (1920 + 12 + 2 + 10) * 60 / 400,
|
||||
.hdisplay = 1080,
|
||||
.hsync_start = 1080 + 400,
|
||||
.hsync_end = 1080 + 400 + 40,
|
||||
.htotal = 1080 + 400 + 40 + 300,
|
||||
.vdisplay = 1920,
|
||||
.vsync_start = 1920 + 12,
|
||||
.vsync_end = 1920 + 12 + 2,
|
||||
.vtotal = 1920 + 12 + 2 + 10,
|
||||
.width_mm = 68,
|
||||
.height_mm = 121,
|
||||
static const struct nt35950_panel_modes sharp_ls055d1sx04_modes[] = {
|
||||
{
|
||||
/* 1920x1080 60Hz no compression */
|
||||
.mode = {
|
||||
.clock = 214537,
|
||||
.hdisplay = 1080,
|
||||
.hsync_start = 1080 + 400,
|
||||
.hsync_end = 1080 + 400 + 40,
|
||||
.htotal = 1080 + 400 + 40 + 300,
|
||||
.vdisplay = 1920,
|
||||
.vsync_start = 1920 + 12,
|
||||
.vsync_end = 1920 + 12 + 2,
|
||||
.vtotal = 1920 + 12 + 2 + 10,
|
||||
.width_mm = 68,
|
||||
.height_mm = 121,
|
||||
.type = DRM_MODE_TYPE_PREFERRED,
|
||||
},
|
||||
.compression = MCS_DATA_COMPRESSION_NONE,
|
||||
.enable_sram = true,
|
||||
.is_video_mode = false,
|
||||
.scaler_on = 1,
|
||||
.scaler_mode = MCS_SCALEUP_DUPLICATE,
|
||||
},
|
||||
/* TODO: Add 2160x3840 60Hz when DSC is supported */
|
||||
};
|
||||
|
||||
const struct nt35950_panel_desc sharp_ls055d1sx04 = {
|
||||
|
|
@ -571,11 +662,10 @@ const struct nt35950_panel_desc sharp_ls055d1sx04 = {
|
|||
.channel = 0,
|
||||
.node = NULL,
|
||||
},
|
||||
.modes = &sharp_ls055d1sx04_modes,
|
||||
.num_lanes = 4,
|
||||
.enable_sram = true,
|
||||
.is_video_mode = false,
|
||||
.mode_data = sharp_ls055d1sx04_modes,
|
||||
.num_modes = ARRAY_SIZE(sharp_ls055d1sx04_modes),
|
||||
.is_dual_dsi = true,
|
||||
.num_lanes = 4,
|
||||
};
|
||||
|
||||
static const struct of_device_id nt35950_of_match[] = {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue