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a19125a281
This adds support for the BOE BF060Y8M-AJ0 5.99" AMOLED module that can be found in some F(x)Tec Pro1 and Elephone U1 devices. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210901173115.998628-1-angelogioacchino.delregno@somainline.org
446 lines
12 KiB
C
446 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* BOE BF060Y8M-AJ0 5.99" MIPI-DSI OLED Panel on SW43404 DriverIC
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*
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* Copyright (c) 2020 AngeloGioacchino Del Regno
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* <angelogioacchino.delregno@somainline.org>
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*/
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#include <linux/backlight.h>
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regulator/consumer.h>
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#include <video/mipi_display.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 DCS_ALLOW_HBM_RANGE 0x0c
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#define DCS_DISALLOW_HBM_RANGE 0x08
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enum boe_bf060y8m_aj0_supplies {
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BF060Y8M_VREG_VCC,
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BF060Y8M_VREG_VDDIO,
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BF060Y8M_VREG_VCI,
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BF060Y8M_VREG_EL_VDD,
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BF060Y8M_VREG_EL_VSS,
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BF060Y8M_VREG_MAX
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};
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struct boe_bf060y8m_aj0 {
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struct drm_panel panel;
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struct mipi_dsi_device *dsi;
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struct regulator_bulk_data vregs[BF060Y8M_VREG_MAX];
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struct gpio_desc *reset_gpio;
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bool prepared;
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};
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static inline
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struct boe_bf060y8m_aj0 *to_boe_bf060y8m_aj0(struct drm_panel *panel)
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{
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return container_of(panel, struct boe_bf060y8m_aj0, panel);
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}
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#define dsi_dcs_write_seq(dsi, seq...) do { \
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static const u8 d[] = { seq }; \
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int ret; \
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ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
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if (ret < 0) \
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return ret; \
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} while (0)
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static void boe_bf060y8m_aj0_reset(struct boe_bf060y8m_aj0 *boe)
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{
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gpiod_set_value_cansleep(boe->reset_gpio, 0);
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usleep_range(2000, 3000);
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gpiod_set_value_cansleep(boe->reset_gpio, 1);
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usleep_range(15000, 16000);
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gpiod_set_value_cansleep(boe->reset_gpio, 0);
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usleep_range(5000, 6000);
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}
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static int boe_bf060y8m_aj0_on(struct boe_bf060y8m_aj0 *boe)
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{
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struct mipi_dsi_device *dsi = boe->dsi;
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struct device *dev = &dsi->dev;
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int ret;
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dsi_dcs_write_seq(dsi, 0xb0, 0xa5, 0x00);
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dsi_dcs_write_seq(dsi, 0xb2, 0x00, 0x4c);
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dsi_dcs_write_seq(dsi, MIPI_DCS_SET_3D_CONTROL, 0x10);
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dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, DCS_ALLOW_HBM_RANGE);
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dsi_dcs_write_seq(dsi, 0xf8,
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0x00, 0x08, 0x10, 0x00, 0x22, 0x00, 0x00, 0x2d);
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ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
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if (ret < 0) {
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dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
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return ret;
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}
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msleep(30);
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dsi_dcs_write_seq(dsi, 0xb0, 0xa5, 0x00);
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dsi_dcs_write_seq(dsi, 0xc0,
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0x08, 0x48, 0x65, 0x33, 0x33, 0x33,
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0x2a, 0x31, 0x39, 0x20, 0x09);
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dsi_dcs_write_seq(dsi, 0xc1, 0x00, 0x00, 0x00, 0x1f, 0x1f,
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0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f,
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0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
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dsi_dcs_write_seq(dsi, 0xe2, 0x20, 0x04, 0x10, 0x12, 0x92,
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0x4f, 0x8f, 0x44, 0x84, 0x83, 0x83, 0x83,
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0x5c, 0x5c, 0x5c);
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dsi_dcs_write_seq(dsi, 0xde, 0x01, 0x2c, 0x00, 0x77, 0x3e);
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msleep(30);
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ret = mipi_dsi_dcs_set_display_on(dsi);
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if (ret < 0) {
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dev_err(dev, "Failed to set display on: %d\n", ret);
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return ret;
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}
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msleep(50);
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return 0;
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}
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static int boe_bf060y8m_aj0_off(struct boe_bf060y8m_aj0 *boe)
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{
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struct mipi_dsi_device *dsi = boe->dsi;
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struct device *dev = &dsi->dev;
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int ret;
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/* OFF commands sent in HS mode */
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dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_set_display_off(dsi);
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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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}
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msleep(20);
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ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
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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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}
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usleep_range(1000, 2000);
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dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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return 0;
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}
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static int boe_bf060y8m_aj0_prepare(struct drm_panel *panel)
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{
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struct boe_bf060y8m_aj0 *boe = to_boe_bf060y8m_aj0(panel);
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struct device *dev = &boe->dsi->dev;
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int ret;
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if (boe->prepared)
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return 0;
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/*
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* Enable EL Driving Voltage first - doing that at the beginning
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* or at the end of the power sequence doesn't matter, so enable
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* it here to avoid yet another usleep at the end.
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*/
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ret = regulator_enable(boe->vregs[BF060Y8M_VREG_EL_VDD].consumer);
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if (ret)
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return ret;
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ret = regulator_enable(boe->vregs[BF060Y8M_VREG_EL_VSS].consumer);
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if (ret)
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goto err_elvss;
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ret = regulator_enable(boe->vregs[BF060Y8M_VREG_VCC].consumer);
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if (ret)
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goto err_vcc;
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usleep_range(1000, 2000);
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ret = regulator_enable(boe->vregs[BF060Y8M_VREG_VDDIO].consumer);
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if (ret)
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goto err_vddio;
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usleep_range(500, 1000);
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ret = regulator_enable(boe->vregs[BF060Y8M_VREG_VCI].consumer);
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if (ret)
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goto err_vci;
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usleep_range(2000, 3000);
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boe_bf060y8m_aj0_reset(boe);
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ret = boe_bf060y8m_aj0_on(boe);
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if (ret < 0) {
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dev_err(dev, "Failed to initialize panel: %d\n", ret);
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gpiod_set_value_cansleep(boe->reset_gpio, 1);
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return ret;
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}
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boe->prepared = true;
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return 0;
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err_vci:
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regulator_disable(boe->vregs[BF060Y8M_VREG_VDDIO].consumer);
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err_vddio:
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regulator_disable(boe->vregs[BF060Y8M_VREG_VCC].consumer);
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err_vcc:
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regulator_disable(boe->vregs[BF060Y8M_VREG_EL_VSS].consumer);
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err_elvss:
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regulator_disable(boe->vregs[BF060Y8M_VREG_EL_VDD].consumer);
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return ret;
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}
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static int boe_bf060y8m_aj0_unprepare(struct drm_panel *panel)
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{
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struct boe_bf060y8m_aj0 *boe = to_boe_bf060y8m_aj0(panel);
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struct device *dev = &boe->dsi->dev;
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int ret;
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if (!boe->prepared)
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return 0;
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ret = boe_bf060y8m_aj0_off(boe);
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if (ret < 0)
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dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
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gpiod_set_value_cansleep(boe->reset_gpio, 1);
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ret = regulator_bulk_disable(ARRAY_SIZE(boe->vregs), boe->vregs);
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boe->prepared = false;
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return 0;
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}
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static const struct drm_display_mode boe_bf060y8m_aj0_mode = {
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.clock = 165268,
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.hdisplay = 1080,
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.hsync_start = 1080 + 36,
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.hsync_end = 1080 + 36 + 24,
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.htotal = 1080 + 36 + 24 + 96,
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.vdisplay = 2160,
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.vsync_start = 2160 + 16,
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.vsync_end = 2160 + 16 + 1,
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.vtotal = 2160 + 16 + 1 + 15,
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.width_mm = 68, /* 68.04 mm */
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.height_mm = 136, /* 136.08 mm */
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};
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static int boe_bf060y8m_aj0_get_modes(struct drm_panel *panel,
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struct drm_connector *connector)
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{
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struct drm_display_mode *mode;
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mode = drm_mode_duplicate(connector->dev, &boe_bf060y8m_aj0_mode);
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if (!mode)
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return -ENOMEM;
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drm_mode_set_name(mode);
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mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
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connector->display_info.width_mm = mode->width_mm;
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connector->display_info.height_mm = mode->height_mm;
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drm_mode_probed_add(connector, mode);
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return 1;
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}
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static const struct drm_panel_funcs boe_bf060y8m_aj0_panel_funcs = {
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.prepare = boe_bf060y8m_aj0_prepare,
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.unprepare = boe_bf060y8m_aj0_unprepare,
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.get_modes = boe_bf060y8m_aj0_get_modes,
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};
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static int boe_bf060y8m_aj0_bl_update_status(struct backlight_device *bl)
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{
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struct mipi_dsi_device *dsi = bl_get_data(bl);
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u16 brightness = backlight_get_brightness(bl);
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int ret;
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ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
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if (ret < 0)
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return ret;
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return 0;
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}
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static int boe_bf060y8m_aj0_bl_get_brightness(struct backlight_device *bl)
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{
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struct mipi_dsi_device *dsi = bl_get_data(bl);
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u16 brightness;
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int ret;
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ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
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if (ret < 0)
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return ret;
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return brightness & 0xff;
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}
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static const struct backlight_ops boe_bf060y8m_aj0_bl_ops = {
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.update_status = boe_bf060y8m_aj0_bl_update_status,
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.get_brightness = boe_bf060y8m_aj0_bl_get_brightness,
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};
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static struct backlight_device *
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boe_bf060y8m_aj0_create_backlight(struct mipi_dsi_device *dsi)
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{
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struct device *dev = &dsi->dev;
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const struct backlight_properties props = {
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.type = BACKLIGHT_RAW,
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.brightness = 127,
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.max_brightness = 255,
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.scale = BACKLIGHT_SCALE_NON_LINEAR,
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};
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return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
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&boe_bf060y8m_aj0_bl_ops, &props);
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}
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static int boe_bf060y8m_aj0_init_vregs(struct boe_bf060y8m_aj0 *boe,
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struct device *dev)
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{
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struct regulator *vreg;
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int ret;
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boe->vregs[BF060Y8M_VREG_VCC].supply = "vcc";
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boe->vregs[BF060Y8M_VREG_VDDIO].supply = "vddio";
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boe->vregs[BF060Y8M_VREG_VCI].supply = "vci";
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boe->vregs[BF060Y8M_VREG_EL_VDD].supply = "elvdd";
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boe->vregs[BF060Y8M_VREG_EL_VSS].supply = "elvss";
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ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(boe->vregs),
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boe->vregs);
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if (ret < 0) {
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dev_err(dev, "Failed to get regulators: %d\n", ret);
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return ret;
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}
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vreg = boe->vregs[BF060Y8M_VREG_VCC].consumer;
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ret = regulator_is_supported_voltage(vreg, 2700000, 3600000);
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if (!ret)
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return ret;
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vreg = boe->vregs[BF060Y8M_VREG_VDDIO].consumer;
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ret = regulator_is_supported_voltage(vreg, 1620000, 1980000);
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if (!ret)
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return ret;
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vreg = boe->vregs[BF060Y8M_VREG_VCI].consumer;
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ret = regulator_is_supported_voltage(vreg, 2600000, 3600000);
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if (!ret)
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return ret;
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vreg = boe->vregs[BF060Y8M_VREG_EL_VDD].consumer;
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ret = regulator_is_supported_voltage(vreg, 4400000, 4800000);
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if (!ret)
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return ret;
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/* ELVSS is negative: -5.00V to -1.40V */
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vreg = boe->vregs[BF060Y8M_VREG_EL_VSS].consumer;
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ret = regulator_is_supported_voltage(vreg, 1400000, 5000000);
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if (!ret)
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return ret;
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/*
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* Set min/max rated current, known only for VCI and VDDIO and,
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* in case of failure, just go on gracefully, as this step is not
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* guaranteed to succeed on all regulator HW but do a debug print
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* to inform the developer during debugging.
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* In any case, these two supplies are also optional, so they may
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* be fixed-regulator which, at the time of writing, does not
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* support fake current limiting.
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*/
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vreg = boe->vregs[BF060Y8M_VREG_VDDIO].consumer;
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ret = regulator_set_current_limit(vreg, 1500, 2500);
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if (ret)
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dev_dbg(dev, "Current limit cannot be set on %s: %d\n",
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boe->vregs[1].supply, ret);
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vreg = boe->vregs[BF060Y8M_VREG_VCI].consumer;
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ret = regulator_set_current_limit(vreg, 20000, 40000);
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if (ret)
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dev_dbg(dev, "Current limit cannot be set on %s: %d\n",
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boe->vregs[2].supply, ret);
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return 0;
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}
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static int boe_bf060y8m_aj0_probe(struct mipi_dsi_device *dsi)
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{
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struct device *dev = &dsi->dev;
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struct boe_bf060y8m_aj0 *boe;
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int ret;
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boe = devm_kzalloc(dev, sizeof(*boe), GFP_KERNEL);
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if (!boe)
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return -ENOMEM;
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ret = boe_bf060y8m_aj0_init_vregs(boe, dev);
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if (ret)
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return dev_err_probe(dev, ret,
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"Failed to initialize supplies.\n");
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boe->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_ASIS);
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if (IS_ERR(boe->reset_gpio))
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return dev_err_probe(dev, PTR_ERR(boe->reset_gpio),
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"Failed to get reset-gpios\n");
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boe->dsi = dsi;
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mipi_dsi_set_drvdata(dsi, boe);
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dsi->lanes = 4;
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dsi->format = MIPI_DSI_FMT_RGB888;
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dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_NO_EOT_PACKET |
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MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
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MIPI_DSI_CLOCK_NON_CONTINUOUS |
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MIPI_DSI_MODE_LPM;
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drm_panel_init(&boe->panel, dev, &boe_bf060y8m_aj0_panel_funcs,
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DRM_MODE_CONNECTOR_DSI);
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boe->panel.backlight = boe_bf060y8m_aj0_create_backlight(dsi);
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if (IS_ERR(boe->panel.backlight))
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return dev_err_probe(dev, PTR_ERR(boe->panel.backlight),
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"Failed to create backlight\n");
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drm_panel_add(&boe->panel);
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ret = mipi_dsi_attach(dsi);
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if (ret < 0) {
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dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
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return ret;
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}
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return 0;
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}
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static int boe_bf060y8m_aj0_remove(struct mipi_dsi_device *dsi)
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{
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struct boe_bf060y8m_aj0 *boe = mipi_dsi_get_drvdata(dsi);
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int ret;
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ret = mipi_dsi_detach(dsi);
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if (ret < 0)
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dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
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drm_panel_remove(&boe->panel);
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return 0;
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}
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static const struct of_device_id boe_bf060y8m_aj0_of_match[] = {
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{ .compatible = "boe,bf060y8m-aj0" },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, boe_bf060y8m_aj0_of_match);
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static struct mipi_dsi_driver boe_bf060y8m_aj0_driver = {
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.probe = boe_bf060y8m_aj0_probe,
|
|
.remove = boe_bf060y8m_aj0_remove,
|
|
.driver = {
|
|
.name = "panel-sw43404-boe-fhd-amoled",
|
|
.of_match_table = boe_bf060y8m_aj0_of_match,
|
|
},
|
|
};
|
|
module_mipi_dsi_driver(boe_bf060y8m_aj0_driver);
|
|
|
|
MODULE_AUTHOR("AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>");
|
|
MODULE_DESCRIPTION("BOE BF060Y8M-AJ0 MIPI-DSI OLED panel");
|
|
MODULE_LICENSE("GPL v2");
|