Merge "msm: mdss: Add SPI display driver"

Qualcomm Technologies, Inc. mdss-spi-client

mdss-spi-client is for SPI display to send the FB data to SPI master.

Required properties:

- compatible : should be "qcom,mdss-spi-client"

- spi-max-frequency : Maximum SPI clocking speed of device in Hz

Optional properties:

- label: A string used to describe the controller used.

- spi-cpol : Boolean property indicating device requires inverse

  clock polarity (CPOL) mode

- spi-cpha :  Empty property indicating device requires shifted

  clock phase (CPHA) mode

- spi-cs-high :  Empty property indicating device requires

  chip select active high

Example:

spi@78b9000 { /* BLSP1 QUP5 */

	qcom,mdss_spi_client {

		reg = <0>;

		compatible = "qcom,mdss-spi-client";

		label = "MDSS SPI QUP5 CLIENT";

		spi-max-frequency = <50000000>;

	};

};

Qualcomm Technologies, Inc. mdss-spi-panel

mdss-spi-panel is a SPI panel device which supports panels that

are compatible with display serial interface specification.

Required properties:

- qcom,mdss-spi-panel-controller:	Specifies the phandle for the SPI controller that

					this panel will be mapped to.

- qcom,mdss-spi-panel-width:		Specifies panel width in pixels.

- qcom,mdss-spi-panel-height:		Specifies panel height in pixels.

- qcom,mdss-spi-bpp:			Specifies the panel bits per pixels.

					3  = for rgb111

					8  = for rgb332

					12 = for rgb444

					16 = for rgb565

					18 = for rgb666

					24 = for rgb888

- qcom,mdss-spi-panel-destination:	A string that specifies the destination display for the panel.

					"display_1" = DISPLAY_1

					"display_2" = DISPLAY_2

- qcom,mdss-spi-on-command:		A byte stream formed by multiple packets

					byte 0: wait number of specified ms after command

						 transmitted

					byte 1: 8 bits length in network byte order

					byte 3 and beyond: number byte of payload

- qcom,mdss-spi-off-command:		A byte stream formed by multiple packets

					byte 0: wait number of specified ms after command

						 transmitted

					byte 1: 8 bits length in network byte order

					byte 3 and beyond: number byte of payload

Optional properties:

- qcom,mdss-spi-panel-name:		A string used as a descriptive name of the panel

- qcom,cont-splash-enabled:		Boolean used to enable continuous splash mode.

					If this property is specified, it is required to

					to specify the memory reserved for the splash

					screen using the qcom,memblock-reserve binding

					for the framebuffer device attached to the panel.

- qcom,mdss-spi-h-back-porch:		Horizontal back porch value in pixels.

					6 = default value.

- qcom,mdss-spi-h-front-porch:		Horizontal front porch value in pixels.

					6 = default value.

- qcom,mdss-spi-h-pulse-width:		Horizontal pulse width.

					2 = default value.

- qcom,mdss-spi-h-sync-skew:		Horizontal sync skew value.

					0 = default value.

- qcom,mdss-spi-v-back-porch:		Vertical back porch value in pixels.

					6 = default value.

- qcom,mdss-spi-v-front-porch:		Vertical front porch value in pixels.

					6 = default value.

- qcom,mdss-spi-v-pulse-width:		Vertical pulse width.

					2 = default value.

- qcom,mdss-spi-bl-pmic-control-type:	A string that specifies the implementation of backlight

					control for this panel.

					"bl_ctrl_pwm" = Backlight controlled by PWM gpio.

					"bl_ctrl_wled" = Backlight controlled by WLED.

					other: Unknown backlight control. (default)

- qcom,mdss-spi-bl-min-level:		Specifies the min backlight level supported by the panel.

					0 = default value.

- qcom,mdss-spi-bl-max-level:		Specifies the max backlight level supported by the panel.

					255 = default value.

- qcom,mdss-spi-panel-framerate:	Specifies the frame rate for the panel.

- qcom,esd-check-enabled:		Boolean used to enable ESD recovery feature.

- qcom,mdss-spi-panel-status-check-mode:Specifies the panel status check method for ESD recovery.

					"send_init_command" = send init code to recover panel status.

					"reg_read" = Read register value to check the panel status.

- qcom,mdss-spi-panel-status-reg:Unsigned 8bits integer value to specifies the value

					of panel status register address.

- qcom,mdss-spi-panel-status-read-length:Unsigned 8bits integer value that specifies

					the expected read-back length of the panel register.

- qcom,mdss-spi-panel-status-value:An unsigned 8bits integer araray that specifies the

					values of the panel status register which is used to

					check the panel status.

					The size of this array is specified by

					qcom,mdss-dsi-panel-status-read-length.

Example:

&mdss_mdp {

	spi_gc9305_qvga_cmd: qcom,mdss_spi_gc9305_qvga_cmd {

		qcom,mdss-spi-panel-name = "gc9305 qvga command mode spi panel";

		qcom,mdss-spi-panel-destination = "display_1";

		qcom,mdss-spi-panel-controller = <&mdss_spi>;

		qcom,mdss-spi-panel-framerate = <30>;

		qcom,mdss-spi-panel-width = <240>;

		qcom,mdss-spi-panel-height = <320>;

		qcom,mdss-spi-h-front-porch = <79>;

		qcom,mdss-spi-h-back-porch = <59>;

		qcom,mdss-spi-h-pulse-width = <60>;

		qcom,mdss-spi-v-back-porch = <10>;

		qcom,mdss-spi-v-front-porch = <7>;

		qcom,mdss-spi-v-pulse-width = <2>;

		qcom,mdss-spi-h-left-border = <0>;

		qcom,mdss-spi-h-right-border = <0>;

		qcom,mdss-spi-v-top-border = <0>;

		qcom,mdss-spi-v-bottom-border = <0>;

		qcom,mdss-spi-bpp = <16>;

		qcom,mdss-spi-on-command = [00 01 FE

			00 01 EF

			00 02 36 48

			00 02 3A 05

			00 02 35 00

			00 03 A4 44 44

			00 03 A5 42 42

			00 03 AA 88 88

			00 03 E8 12 40

			00 03 E3 01 10

			00 02 FF 61

			00 02 AC 00

			00 03 A6 2A 2A

			00 03 A7 2B 2B

			00 03 A8 18 18

			00 03 A9 2A 2A

			00 02 AD 33

			00 02 AF 55

			00 02 AE 2B

			00 05 2A 00 00 00 EF

			00 05 2B 00 00 01 3F

			00 01 2C

			00 07 F0 02 02 00 08 0C 10

			00 07 F1 01 00 00 14 1D 0E

			00 07 F2 10 09 37 04 04 48

			00 07 F3 10 0B 3F 05 05 4E

			00 07 F4 0D 19 17 1D 1E 0F

			00 07 F5 06 12 13 1A 1B 0F

			78 01 11

			00 01 29

			00 01 2C];

		qcom,mdss-spi-off-command = [20 01 28

			20 01 10];

		qcom,mdss-spi-bl-min-level = <1>;

		qcom,mdss-spi-bl-max-level = <4095>;

		qcom,esd-check-enabled;

		qcom,mdss-spi-panel-status-check-mode = "reg_read";

		qcom,mdss-spi-panel-status-reg = /bits/ 8 <0x09>;

		qcom,mdss-spi-panel-status-read-length = <4>;

		qcom,mdss-spi-panel-status-value = /bits/ 8 <0x52 0x29 0x83 0x00>;

	};

};

mdss-spi-display is a spi interface display which support send frame

data and command to panel, compatible with SPI interface specification.

Required properties:

- compatible:	This property applies to SPI panels only.

			compatible = "qcom,mdss-spi-display".

- vdd-supply:	Phandle for vdd regulator device node.

- vddio-supply:	Phandle for vdd-io regulator device node.

- qcom,mdss-fb-map:	pHandle that specifies the framebuffer to which the interface is mapped.

- qcom,mdss-mdp:	pHandle that specifies the mdss-mdp device.

- qcom,panel-supply-entries:	A node that lists the elements of the supply used to

				power the DSI panel. There can be more than one instance

				of this binding, in which case the entry would be appended

				with the supply entry index. For a detailed description

				fields in the supply entry, refer to the qcom,ctrl-supply-entries

				binding above.

- qcom,platform-spi-dc-gpio: 	Pull down this gpio indicate current package is command,

				Pull up this gpio indicate current package is parameter or pixels.

Optional properties:

- label:A string used to describe the controller used.

	-- qcom,supply-name: name of the supply (vdd/vdda/vddio)

	-- qcom,supply-min-voltage: minimum voltage level (uV)

	-- qcom,supply-max-voltage: maximum voltage level (uV)

	-- qcom,supply-enable-load: load drawn (uA) from enabled supply

	-- qcom,supply-disable-load: load drawn (uA) from disabled supply

	-- qcom,supply-pre-on-sleep: time to sleep (ms) before turning on

	-- qcom,supply-post-on-sleep: time to sleep (ms) after turning on

	-- qcom,supply-pre-off-sleep: time to sleep (ms) before turning off

	-- qcom,supply-post-off-sleep: time to sleep (ms) after turning off

Example:

	mdss_spi: qcom,mdss_spi {

		compatible = "qcom,mdss-spi-display";

		label = "mdss spi panel";

		qcom,mdss-fb-map = <&mdss_fb0>;

		qcom,mdss-mdp = <&mdss_mdp>;

		vdd-supply = <&pm8909_l17>;

		vddio-supply = <&pm8909_l6>;

		qcom,platform-spi-dc-gpio = <&msm_gpio 110 0>;

		qcom,panel-supply-entries {

			#address-cells = <1>;

			#size-cells = <0>;

			qcom,panel-supply-entry@0 {

				reg = <0>;

				qcom,supply-name = "vdd";

				qcom,supply-min-voltage = <2850000>;

				qcom,supply-max-voltage = <2850000>;

				qcom,supply-enable-load = <100000>;

				qcom,supply-disable-load = <100>;

			};

			qcom,panel-supply-entry@1 {

				reg = <1>;

				qcom,supply-name = "vddio";

				qcom,supply-min-voltage = <1800000>;

				qcom,supply-max-voltage = <1800000>;

				qcom,supply-enable-load = <100000>;

				qcom,supply-disable-load = <100>;

			};

		};

	};

	MHL (Mobile High-Definition Link) technology

	uses USB connector to output HDMI content

config FB_MSM_MDSS_SPI_PANEL

        depends on FB_MSM_MDSS

        bool "Support SPI panel feature"

        default n

        ---help---

        The MDSS SPI Panel provides support for transmittimg SPI signals of

        MDSS frame buffer data to connected panel. Limited by SPI rate, the

        current max fps only reach to 27 fps, and limited by MDP hardware

        architecture only supply on MDP3

config FB_MSM_MDSS_MHL3

	depends on FB_MSM_MDSS_HDMI_PANEL

	bool "MHL3 SII8620 Support"

obj-$(CONFIG_FB_MSM_MDSS) += mdss-dsi.o

obj-$(CONFIG_FB_MSM_MDSS) += mdss_panel.o

ifeq ($(CONFIG_SPI_QUP), y)

obj-$(CONFIG_FB_MSM_MDSS_SPI_PANEL) += mdss_spi_client.o

obj-$(CONFIG_FB_MSM_MDSS_SPI_PANEL) += mdss_spi_panel.o

endif

ifneq ($(CONFIG_FB_MSM_MDSS_MDP3), y)

obj-$(CONFIG_FB_MSM_MDSS) += mdss_hdmi_util.o

obj-$(CONFIG_FB_MSM_MDSS) += mdss_hdmi_edid.o

#include "mdss_dsi.h"

#include "mdp3_ctrl.h"

#include "mdss_spi_panel.h"

/*

 * mdp3_check_te_status() - Check the status of panel for TE based ESD.

	mdss_fb_report_panel_dead(pdsi_status->mfd);

}

#if defined(CONFIG_FB_MSM_MDSS_SPI_PANEL)

void mdp3_check_spi_panel_status(struct work_struct *work, uint32_t interval)

{

	struct dsi_status_data *pdsi_status = NULL;

	struct mdss_panel_data *pdata = NULL;

	struct spi_panel_data *ctrl_pdata = NULL;

	struct mdp3_session_data *mdp3_session = NULL;

	int ret = 0;

	pdsi_status = container_of(to_delayed_work(work),

			struct dsi_status_data, check_status);

	if (!pdsi_status || !(pdsi_status->mfd)) {

		pr_err("%s: mfd not available\n", __func__);

		return;

	}

	pdata = dev_get_platdata(&pdsi_status->mfd->pdev->dev);

	if (!pdata) {

		pr_err("%s: panel data not available\n", __func__);

		return;

	}

	ctrl_pdata = container_of(pdata, struct spi_panel_data, panel_data);

	if (!ctrl_pdata || !ctrl_pdata->check_status) {

		pr_err("%s: Dsi ctrl or status_check callback not available\n",

				__func__);

		return;

	}

	mdp3_session = pdsi_status->mfd->mdp.private1;

	if (!mdp3_session) {

		pr_err("%s: Display is off\n", __func__);

		return;

	}

	if (mdp3_session->in_splash_screen) {

		schedule_delayed_work(&pdsi_status->check_status,

			msecs_to_jiffies(interval));

		pr_debug("%s: cont splash is on\n", __func__);

		return;

	}

	mutex_lock(&mdp3_session->lock);

	if (!mdp3_session->status) {

		pr_debug("%s: display off already\n", __func__);

		mutex_unlock(&mdp3_session->lock);

		return;

	}

	if (!ret)

		ret = ctrl_pdata->check_status(ctrl_pdata);

	else

		pr_err("%s:wait_for_dma_done error\n", __func__);

	mutex_unlock(&mdp3_session->lock);

	if (mdss_fb_is_power_on_interactive(pdsi_status->mfd)) {

		if (ret > 0) {

			schedule_delayed_work(&pdsi_status->check_status,

				msecs_to_jiffies(interval));

		} else {

			char *envp[2] = {"PANEL_ALIVE=0", NULL};

			pdata->panel_info.panel_dead = true;

			ret = kobject_uevent_env(

			&pdsi_status->mfd->fbi->dev->kobj, KOBJ_CHANGE, envp);

			pr_err("%s:panel has gone bad, sending uevent - %s\n",

			 __func__, envp[0]);

		}

	}

}

#else

void mdp3_check_spi_panel_status(struct work_struct *work, uint32_t interval)

{

}

#endif