fb: backlight: HX8357: Add HX8369 support (fb525668) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/video/backlight/hx8357.c

+204 −15

Original line number	Original line	Diff line number	Diff line
	@@ -71,6 +71,18 @@
	#define HX8357_SET_POWER_NORMAL 0xd2		#define HX8357_SET_POWER_NORMAL 0xd2
	#define HX8357_SET_PANEL_RELATED 0xe9		#define HX8357_SET_PANEL_RELATED 0xe9

			#define HX8369_SET_DISPLAY_BRIGHTNESS 0x51
			#define HX8369_WRITE_CABC_DISPLAY_VALUE 0x53
			#define HX8369_WRITE_CABC_BRIGHT_CTRL 0x55
			#define HX8369_WRITE_CABC_MIN_BRIGHTNESS 0x5e
			#define HX8369_SET_POWER 0xb1
			#define HX8369_SET_DISPLAY_MODE 0xb2
			#define HX8369_SET_DISPLAY_WAVEFORM_CYC 0xb4
			#define HX8369_SET_VCOM 0xb6
			#define HX8369_SET_EXTENSION_COMMAND 0xb9
			#define HX8369_SET_GIP 0xd5
			#define HX8369_SET_GAMMA_CURVE_RELATED 0xe0

	struct hx8357_data {		struct hx8357_data {
	unsigned im_pins[HX8357_NUM_IM_PINS];		unsigned im_pins[HX8357_NUM_IM_PINS];
	unsigned reset;		unsigned reset;
	@@ -144,6 +156,61 @@ static u8 hx8357_seq_display_mode[] = {
	HX8357_SET_DISPLAY_MODE_RGB_INTERFACE,		HX8357_SET_DISPLAY_MODE_RGB_INTERFACE,
	};		};

			static u8 hx8369_seq_write_CABC_min_brightness[] = {
			HX8369_WRITE_CABC_MIN_BRIGHTNESS, 0x00,
			};

			static u8 hx8369_seq_write_CABC_control[] = {
			HX8369_WRITE_CABC_DISPLAY_VALUE, 0x24,
			};

			static u8 hx8369_seq_set_display_brightness[] = {
			HX8369_SET_DISPLAY_BRIGHTNESS, 0xFF,
			};

			static u8 hx8369_seq_write_CABC_control_setting[] = {
			HX8369_WRITE_CABC_BRIGHT_CTRL, 0x02,
			};

			static u8 hx8369_seq_extension_command[] = {
			HX8369_SET_EXTENSION_COMMAND, 0xff, 0x83, 0x69,
			};

			static u8 hx8369_seq_display_related[] = {
			HX8369_SET_DISPLAY_MODE, 0x00, 0x2b, 0x03, 0x03, 0x70, 0x00,
			0xff, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x01,
			};

			static u8 hx8369_seq_panel_waveform_cycle[] = {
			HX8369_SET_DISPLAY_WAVEFORM_CYC, 0x0a, 0x1d, 0x80, 0x06, 0x02,
			};

			static u8 hx8369_seq_set_address_mode[] = {
			HX8357_SET_ADDRESS_MODE, 0x00,
			};

			static u8 hx8369_seq_vcom[] = {
			HX8369_SET_VCOM, 0x3e, 0x3e,
			};

			static u8 hx8369_seq_gip[] = {
			HX8369_SET_GIP, 0x00, 0x01, 0x03, 0x25, 0x01, 0x02, 0x28, 0x70,
			0x11, 0x13, 0x00, 0x00, 0x40, 0x26, 0x51, 0x37, 0x00, 0x00, 0x71,
			0x35, 0x60, 0x24, 0x07, 0x0f, 0x04, 0x04,
			};

			static u8 hx8369_seq_power[] = {
			HX8369_SET_POWER, 0x01, 0x00, 0x34, 0x03, 0x00, 0x11, 0x11, 0x32,
			0x2f, 0x3f, 0x3f, 0x01, 0x3a, 0x01, 0xe6, 0xe6, 0xe6, 0xe6, 0xe6,
			};

			static u8 hx8369_seq_gamma_curve_related[] = {
			HX8369_SET_GAMMA_CURVE_RELATED, 0x00, 0x0d, 0x19, 0x2f, 0x3b, 0x3d,
			0x2e, 0x4a, 0x08, 0x0e, 0x0f, 0x14, 0x16, 0x14, 0x14, 0x14, 0x1e,
			0x00, 0x0d, 0x19, 0x2f, 0x3b, 0x3d, 0x2e, 0x4a, 0x08, 0x0e, 0x0f,
			0x14, 0x16, 0x14, 0x14, 0x14, 0x1e,
			};

	static int hx8357_spi_write_then_read(struct lcd_device *lcdev,		static int hx8357_spi_write_then_read(struct lcd_device *lcdev,
	u8 *txbuf, u16 txlen,		u8 *txbuf, u16 txlen,
	u8 *rxbuf, u16 rxlen)		u8 *rxbuf, u16 rxlen)
	@@ -220,6 +287,10 @@ static int hx8357_enter_standby(struct lcd_device *lcdev)
	if (ret < 0)		if (ret < 0)
	return ret;		return ret;

			/*
			* The controller needs 120ms when entering in sleep mode before we can
			* send the command to go off sleep mode
			*/
	msleep(120);		msleep(120);

	return 0;		return 0;
	@@ -233,6 +304,10 @@ static int hx8357_exit_standby(struct lcd_device *lcdev)
	if (ret < 0)		if (ret < 0)
	return ret;		return ret;

			/*
			* The controller needs 120ms when exiting from sleep mode before we
			* can send the command to enter in sleep mode
			*/
	msleep(120);		msleep(120);

	ret = hx8357_spi_write_byte(lcdev, HX8357_SET_DISPLAY_ON);		ret = hx8357_spi_write_byte(lcdev, HX8357_SET_DISPLAY_ON);
	@@ -242,6 +317,21 @@ static int hx8357_exit_standby(struct lcd_device *lcdev)
	return 0;		return 0;
	}		}

			static void hx8357_lcd_reset(struct lcd_device *lcdev)
			{
			struct hx8357_data *lcd = lcd_get_data(lcdev);

			/* Reset the screen */
			gpio_set_value(lcd->reset, 1);
			usleep_range(10000, 12000);
			gpio_set_value(lcd->reset, 0);
			usleep_range(10000, 12000);
			gpio_set_value(lcd->reset, 1);

			/* The controller needs 120ms to recover from reset */
			msleep(120);
			}

	static int hx8357_lcd_init(struct lcd_device *lcdev)		static int hx8357_lcd_init(struct lcd_device *lcdev)
	{		{
	struct hx8357_data *lcd = lcd_get_data(lcdev);		struct hx8357_data *lcd = lcd_get_data(lcdev);
	@@ -257,14 +347,6 @@ static int hx8357_lcd_init(struct lcd_device *lcdev)
	gpio_set_value_cansleep(lcd->im_pins[2], 1);		gpio_set_value_cansleep(lcd->im_pins[2], 1);
	}		}

	/* Reset the screen */
	gpio_set_value(lcd->reset, 1);
	usleep_range(10000, 12000);
	gpio_set_value(lcd->reset, 0);
	usleep_range(10000, 12000);
	gpio_set_value(lcd->reset, 1);
	msleep(120);

	ret = hx8357_spi_write_array(lcdev, hx8357_seq_power,		ret = hx8357_spi_write_array(lcdev, hx8357_seq_power,
	ARRAY_SIZE(hx8357_seq_power));		ARRAY_SIZE(hx8357_seq_power));
	if (ret < 0)		if (ret < 0)
	@@ -344,6 +426,9 @@ static int hx8357_lcd_init(struct lcd_device *lcdev)
	if (ret < 0)		if (ret < 0)
	return ret;		return ret;

			/*
			* The controller needs 120ms to fully recover from exiting sleep mode
			*/
	msleep(120);		msleep(120);

	ret = hx8357_spi_write_byte(lcdev, HX8357_SET_DISPLAY_ON);		ret = hx8357_spi_write_byte(lcdev, HX8357_SET_DISPLAY_ON);
	@@ -359,6 +444,96 @@ static int hx8357_lcd_init(struct lcd_device *lcdev)
	return 0;		return 0;
	}		}

			static int hx8369_lcd_init(struct lcd_device *lcdev)
			{
			int ret;

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_extension_command,
			ARRAY_SIZE(hx8369_seq_extension_command));
			if (ret < 0)
			return ret;
			usleep_range(10000, 12000);

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_display_related,
			ARRAY_SIZE(hx8369_seq_display_related));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_panel_waveform_cycle,
			ARRAY_SIZE(hx8369_seq_panel_waveform_cycle));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_set_address_mode,
			ARRAY_SIZE(hx8369_seq_set_address_mode));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_vcom,
			ARRAY_SIZE(hx8369_seq_vcom));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_gip,
			ARRAY_SIZE(hx8369_seq_gip));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_power,
			ARRAY_SIZE(hx8369_seq_power));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_byte(lcdev, HX8357_EXIT_SLEEP_MODE);
			if (ret < 0)
			return ret;

			/*
			* The controller needs 120ms to fully recover from exiting sleep mode
			*/
			msleep(120);

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_gamma_curve_related,
			ARRAY_SIZE(hx8369_seq_gamma_curve_related));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_byte(lcdev, HX8357_EXIT_SLEEP_MODE);
			if (ret < 0)
			return ret;
			usleep_range(1000, 1200);

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_write_CABC_control,
			ARRAY_SIZE(hx8369_seq_write_CABC_control));
			if (ret < 0)
			return ret;
			usleep_range(10000, 12000);

			ret = hx8357_spi_write_array(lcdev,
			hx8369_seq_write_CABC_control_setting,
			ARRAY_SIZE(hx8369_seq_write_CABC_control_setting));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_array(lcdev,
			hx8369_seq_write_CABC_min_brightness,
			ARRAY_SIZE(hx8369_seq_write_CABC_min_brightness));
			if (ret < 0)
			return ret;
			usleep_range(10000, 12000);

			ret = hx8357_spi_write_array(lcdev, hx8369_seq_set_display_brightness,
			ARRAY_SIZE(hx8369_seq_set_display_brightness));
			if (ret < 0)
			return ret;

			ret = hx8357_spi_write_byte(lcdev, HX8357_SET_DISPLAY_ON);
			if (ret < 0)
			return ret;

			return 0;
			}

	#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)		#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)

	static int hx8357_set_power(struct lcd_device *lcdev, int power)		static int hx8357_set_power(struct lcd_device *lcdev, int power)
	@@ -391,10 +566,24 @@ static struct lcd_ops hx8357_ops = {
	.get_power = hx8357_get_power,		.get_power = hx8357_get_power,
	};		};

			static const struct of_device_id hx8357_dt_ids[] = {
			{
			.compatible = "himax,hx8357",
			.data = hx8357_lcd_init,
			},
			{
			.compatible = "himax,hx8369",
			.data = hx8369_lcd_init,
			},
			{},
			};
			MODULE_DEVICE_TABLE(of, hx8357_dt_ids);

	static int hx8357_probe(struct spi_device *spi)		static int hx8357_probe(struct spi_device *spi)
	{		{
	struct lcd_device *lcdev;		struct lcd_device *lcdev;
	struct hx8357_data *lcd;		struct hx8357_data *lcd;
			const struct of_device_id *match;
	int i, ret;		int i, ret;

	lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL);		lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL);
	@@ -411,6 +600,10 @@ static int hx8357_probe(struct spi_device *spi)

	lcd->spi = spi;		lcd->spi = spi;

			match = of_match_device(hx8357_dt_ids, &spi->dev);
			if (!match \|\| !match->data)
			return -EINVAL;

	lcd->reset = of_get_named_gpio(spi->dev.of_node, "gpios-reset", 0);		lcd->reset = of_get_named_gpio(spi->dev.of_node, "gpios-reset", 0);
	if (!gpio_is_valid(lcd->reset)) {		if (!gpio_is_valid(lcd->reset)) {
	dev_err(&spi->dev, "Missing dt property: gpios-reset\n");		dev_err(&spi->dev, "Missing dt property: gpios-reset\n");
	@@ -462,7 +655,9 @@ static int hx8357_probe(struct spi_device *spi)
	}		}
	spi_set_drvdata(spi, lcdev);		spi_set_drvdata(spi, lcdev);

	ret = hx8357_lcd_init(lcdev);		hx8357_lcd_reset(lcdev);

			ret = ((int ()(struct lcd_device ))match->data)(lcdev);
	if (ret) {		if (ret) {
	dev_err(&spi->dev, "Couldn't initialize panel\n");		dev_err(&spi->dev, "Couldn't initialize panel\n");
	goto init_error;		goto init_error;
	@@ -485,12 +680,6 @@ static int hx8357_remove(struct spi_device *spi)
	return 0;		return 0;
	}		}

	static const struct of_device_id hx8357_dt_ids[] = {
	{ .compatible = "himax,hx8357" },
	{},
	};
	MODULE_DEVICE_TABLE(of, hx8357_dt_ids);

	static struct spi_driver hx8357_driver = {		static struct spi_driver hx8357_driver = {
	.probe = hx8357_probe,		.probe = hx8357_probe,
	.remove = hx8357_remove,		.remove = hx8357_remove,