msm: mdss: dsi: Add chromaticity values for HDR support (450019d3) · Commits · e / devices / android_kernel_xiaomi_markw

Documentation/devicetree/bindings/fb/mdss-dsi-panel.txt

+22 −0

Original line number	Original line	Diff line number	Diff line
	@@ -326,6 +326,28 @@ Optional properties:
	2A/2B command.		2A/2B command.
	- qcom,dcs-cmd-by-left: Boolean to indicate that dcs command are sent		- qcom,dcs-cmd-by-left: Boolean to indicate that dcs command are sent
	through the left DSI controller only in a dual-dsi configuration		through the left DSI controller only in a dual-dsi configuration
			- qcom,mdss-dsi-panel-hdr-enabled: Boolean to indicate HDR support in panel.
			- qcom,mdss-dsi-panel-hdr-color-primaries:
			Array of 8 unsigned integers denoting chromaticity of panel.These
			values are specified in nits units. The value range is 0 through 50000.
			To obtain real chromacity, these values should be divided by factor of
			50000. The structure of array is defined in below order
			value 1: x value of white chromaticity of display panel
			value 2: y value of white chromaticity of display panel
			value 3: x value of red chromaticity of display panel
			value 4: y value of red chromaticity of display panel
			value 5: x value of green chromaticity of display panel
			value 6: y value of green chromaticity of display panel
			value 7: x value of blue chromaticity of display panel
			value 8: y value of blue chromaticity of display panel
			- qcom,mdss-dsi-panel-peak-brightness: Maximum brightness supported by panel.In absence of maximum value
			typical value becomes peak brightness. Value is specified in nits units.
			To obtail real peak brightness, this value should be divided by factor of
			10000.
			- qcom,mdss-dsi-panel-blackness-level: Blackness level supported by panel. Blackness level is defined as
			ratio of peak brightness to contrast. Value is specified in nits units.
			To obtail real blackness level, this value should be divided by factor of
			10000.
	- qcom,mdss-dsi-lp11-init: Boolean used to enable the DSI clocks and data lanes (low power 11)		- qcom,mdss-dsi-lp11-init: Boolean used to enable the DSI clocks and data lanes (low power 11)
	before issuing hardware reset line.		before issuing hardware reset line.
	- qcom,mdss-dsi-init-delay-us: Delay in microseconds(us) before performing any DSI activity in lp11		- qcom,mdss-dsi-init-delay-us: Delay in microseconds(us) before performing any DSI activity in lp11

drivers/video/msm/mdss/mdss_dsi_panel.c

+55 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1115,6 +1115,58 @@ void mdss_dsi_panel_dsc_pps_send(struct mdss_dsi_ctrl_pdata *ctrl,
	mdss_dsi_panel_cmds_send(ctrl, &pcmds, CMD_REQ_COMMIT);		mdss_dsi_panel_cmds_send(ctrl, &pcmds, CMD_REQ_COMMIT);
	}		}

			static int mdss_dsi_parse_hdr_settings(struct device_node *np,
			struct mdss_panel_info *pinfo)
			{
			int rc = 0;
			struct mdss_panel_hdr_properties *hdr_prop;

			if (!np) {
			pr_err("%s: device node pointer is NULL\n", __func__);
			return -EINVAL;
			}

			if (!pinfo) {
			pr_err("%s: panel info is NULL\n", __func__);
			return -EINVAL;
			}

			hdr_prop = &pinfo->hdr_properties;
			hdr_prop->hdr_enabled = of_property_read_bool(np,
			"qcom,mdss-dsi-panel-hdr-enabled");

			if (hdr_prop->hdr_enabled) {
			rc = of_property_read_u32_array(np,
			"qcom,mdss-dsi-panel-hdr-color-primaries",
			hdr_prop->display_primaries,
			DISPLAY_PRIMARIES_COUNT);
			if (rc) {
			pr_info("%s:%d, Unable to read color primaries,rc:%u",
			__func__, __LINE__,
			hdr_prop->hdr_enabled = false);
			}

			rc = of_property_read_u32(np,
			"qcom,mdss-dsi-panel-peak-brightness",
			&(hdr_prop->peak_brightness));
			if (rc) {
			pr_info("%s:%d, Unable to read hdr brightness, rc:%u",
			__func__, __LINE__, rc);
			hdr_prop->hdr_enabled = false;
			}

			rc = of_property_read_u32(np,
			"qcom,mdss-dsi-panel-blackness-level",
			&(hdr_prop->blackness_level));
			if (rc) {
			pr_info("%s:%d, Unable to read hdr brightness, rc:%u",
			__func__, __LINE__, rc);
			hdr_prop->hdr_enabled = false;
			}
			}
			return 0;
			}

	static int mdss_dsi_parse_dsc_version(struct device_node *np,		static int mdss_dsi_parse_dsc_version(struct device_node *np,
	struct mdss_panel_timing *timing)		struct mdss_panel_timing *timing)
	{		{
	@@ -2460,6 +2512,9 @@ static int mdss_panel_parse_dt(struct device_node *np,
	"qcom,mdss-dsi-lane-3-state");		"qcom,mdss-dsi-lane-3-state");

	rc = mdss_panel_parse_display_timings(np, &ctrl_pdata->panel_data);		rc = mdss_panel_parse_display_timings(np, &ctrl_pdata->panel_data);
			if (rc)
			return rc;
			rc = mdss_dsi_parse_hdr_settings(np, pinfo);
	if (rc)		if (rc)
	return rc;		return rc;

drivers/video/msm/mdss/mdss_fb.c

+19 −2

Original line number	Original line	Diff line number	Diff line
	@@ -572,7 +572,13 @@ static ssize_t mdss_fb_get_panel_info(struct device *dev,
	"min_w=%d\nmin_h=%d\nroi_merge=%d\ndyn_fps_en=%d\n"		"min_w=%d\nmin_h=%d\nroi_merge=%d\ndyn_fps_en=%d\n"
	"min_fps=%d\nmax_fps=%d\npanel_name=%s\n"		"min_fps=%d\nmax_fps=%d\npanel_name=%s\n"
	"primary_panel=%d\nis_pluggable=%d\ndisplay_id=%s\n"		"primary_panel=%d\nis_pluggable=%d\ndisplay_id=%s\n"
	"is_cec_supported=%d\nis_pingpong_split=%d\n",		"is_cec_supported=%d\nis_pingpong_split=%d\n"
			"is_hdr_enabled=%d\n"
			"peak_brightness=%d\nblackness_level=%d\n"
			"white_chromaticity_x=%d\nwhite_chromaticity_y=%d\n"
			"red_chromaticity_x=%d\nred_chromaticity_y=%d\n"
			"green_chromaticity_x=%d\ngreen_chromaticity_y=%d\n"
			"blue_chromaticity_x=%d\nblue_chromaticity_y=%d\n",
	pinfo->partial_update_enabled,		pinfo->partial_update_enabled,
	pinfo->roi_alignment.xstart_pix_align,		pinfo->roi_alignment.xstart_pix_align,
	pinfo->roi_alignment.width_pix_align,		pinfo->roi_alignment.width_pix_align,
	@@ -584,7 +590,18 @@ static ssize_t mdss_fb_get_panel_info(struct device *dev,
	pinfo->dynamic_fps, pinfo->min_fps, pinfo->max_fps,		pinfo->dynamic_fps, pinfo->min_fps, pinfo->max_fps,
	pinfo->panel_name, pinfo->is_prim_panel,		pinfo->panel_name, pinfo->is_prim_panel,
	pinfo->is_pluggable, pinfo->display_id,		pinfo->is_pluggable, pinfo->display_id,
	pinfo->is_cec_supported, is_pingpong_split(mfd));		pinfo->is_cec_supported, is_pingpong_split(mfd),
			pinfo->hdr_properties.hdr_enabled,
			pinfo->hdr_properties.peak_brightness,
			pinfo->hdr_properties.blackness_level,
			pinfo->hdr_properties.display_primaries[0],
			pinfo->hdr_properties.display_primaries[1],
			pinfo->hdr_properties.display_primaries[2],
			pinfo->hdr_properties.display_primaries[3],
			pinfo->hdr_properties.display_primaries[4],
			pinfo->hdr_properties.display_primaries[5],
			pinfo->hdr_properties.display_primaries[6],
			pinfo->hdr_properties.display_primaries[7]);

	return ret;		return ret;
	}		}

drivers/video/msm/mdss/mdss_panel.h

+19 −0

Original line number	Original line	Diff line number	Diff line
	@@ -63,6 +63,9 @@ enum fps_resolution {

	#define DSC_PPS_LEN 128		#define DSC_PPS_LEN 128

			/* HDR propeties count */
			#define DISPLAY_PRIMARIES_COUNT 8 /* WRGB x and y values*/

	static inline const char *mdss_panel2str(u32 panel)		static inline const char *mdss_panel2str(u32 panel)
	{		{
	static const char const *names[] = {		static const char const *names[] = {
	@@ -590,6 +593,19 @@ struct mdss_panel_roi_alignment {
	u32 min_height;		u32 min_height;
	};		};

			struct mdss_panel_hdr_properties {
			bool hdr_enabled;

			/* WRGB X and y values arrayed in format */
			/* [WX, WY, RX, RY, GX, GY, BX, BY] */
			u32 display_primaries[DISPLAY_PRIMARIES_COUNT];

			/* peak brightness supported by panel */
			u32 peak_brightness;
			/* Blackness level supported by panel */
			u32 blackness_level;
			};

	struct mdss_panel_info {		struct mdss_panel_info {
	u32 xres;		u32 xres;
	u32 yres;		u32 yres;
	@@ -723,6 +739,9 @@ struct mdss_panel_info {

	/* debugfs structure for the panel */		/* debugfs structure for the panel */
	struct mdss_panel_debugfs_info *debugfs_info;		struct mdss_panel_debugfs_info *debugfs_info;

			/* HDR properties of display panel*/
			struct mdss_panel_hdr_properties hdr_properties;
	};		};

	struct mdss_panel_timing {		struct mdss_panel_timing {