[3/6] drm/tinydrm: rename mi028qt module to mipi-panel

Message ID	1501355870-13960-4-git-send-email-david@lechnology.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-fbdev-owner@kernel.org> From: David Lechner <david@lechnology.com> To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Cc: David Lechner <david@lechnology.com>, =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>, David Airlie <airlied@linux.ie>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>, linux-fbdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/6] drm/tinydrm: rename mi028qt module to mipi-panel Date: Sat, 29 Jul 2017 14:17:47 -0500 Message-Id: <1501355870-13960-4-git-send-email-david@lechnology.com> In-Reply-To: <1501355870-13960-1-git-send-email-david@lechnology.com> References: <1501355870-13960-1-git-send-email-david@lechnology.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk

diff --git a/Documentation/devicetree/bindings/display/mipi-panel.txt b/Documentation/devicetree/bindings/display/mipi-panel.txt new file mode 100644 index 0000000..01d6ea9 --- /dev/null +++ b/Documentation/devicetree/bindings/display/mipi-panel.txt @@ -0,0 +1,27 @@ +MIPI DBI compatible display panel + +Required properties: +- compatible: "multi-inno,mi0283qt". + +The node for this driver must be a child node of a SPI controller, hence +all mandatory properties described in ../spi/spi-bus.txt must be specified. + +Optional properties: +- dc-gpios: D/C pin. The presence/absence of this GPIO determines + the panel interface mode (IM[3:0] pins): + - present: IM=x110 4-wire 8-bit data serial interface + - absent: IM=x101 3-wire 9-bit data serial interface +- reset-gpios: Reset pin +- power-supply: A regulator node for the supply voltage. +- backlight: phandle of the backlight device attached to the panel +- rotation: panel rotation in degrees counter clockwise (0,90,180,270) + +Example: + display@0{ + compatible = "multi-inno,mi0283qt"; + reg = <0>; + spi-max-frequency = <32000000>; + rotation = <90>; + dc-gpios = <&gpio 25 0>; + backlight = <&backlight>; + }; diff --git a/Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt b/Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt deleted file mode 100644 index eed48c3..0000000 --- a/Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt +++ /dev/null @@ -1,27 +0,0 @@ -Multi-Inno MI0283QT display panel - -Required properties: -- compatible: "multi-inno,mi0283qt". - -The node for this driver must be a child node of a SPI controller, hence -all mandatory properties described in ../spi/spi-bus.txt must be specified. - -Optional properties: -- dc-gpios: D/C pin. The presence/absence of this GPIO determines - the panel interface mode (IM[3:0] pins): - - present: IM=x110 4-wire 8-bit data serial interface - - absent: IM=x101 3-wire 9-bit data serial interface -- reset-gpios: Reset pin -- power-supply: A regulator node for the supply voltage. -- backlight: phandle of the backlight device attached to the panel -- rotation: panel rotation in degrees counter clockwise (0,90,180,270) - -Example: - mi0283qt@0{ - compatible = "multi-inno,mi0283qt"; - reg = <0>; - spi-max-frequency = <32000000>; - rotation = <90>; - dc-gpios = <&gpio 25 0>; - backlight = <&backlight>; - }; diff --git a/MAINTAINERS b/MAINTAINERS index f66488d..812ffd0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4315,11 +4315,11 @@ M: Dave Airlie <airlied@redhat.com> S: Odd Fixes F: drivers/gpu/drm/mgag200/ -DRM DRIVER FOR MI0283QT +DRM DRIVER FOR MIPI DBI compatible panels M: Noralf Trønnes <noralf@tronnes.org> S: Maintained -F: drivers/gpu/drm/tinydrm/mi0283qt.c -F: Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt +F: drivers/gpu/drm/tinydrm/mipi-panel.c +F: Documentation/devicetree/bindings/display/mipi-panel.txt DRM DRIVER FOR MSM ADRENO GPU M: Rob Clark <robdclark@gmail.com> diff --git a/drivers/gpu/drm/tinydrm/Kconfig b/drivers/gpu/drm/tinydrm/Kconfig index 3504c53..394519b 100644 --- a/drivers/gpu/drm/tinydrm/Kconfig +++ b/drivers/gpu/drm/tinydrm/Kconfig @@ -12,10 +12,14 @@ menuconfig DRM_TINYDRM config TINYDRM_MIPI_DBI tristate -config TINYDRM_MI0283QT - tristate "DRM support for MI0283QT" +config TINYDRM_MIPI_PANEL + tristate "DRM support for MIPI DBI compatible display panels" depends on DRM_TINYDRM && SPI select TINYDRM_MIPI_DBI help - DRM driver for the Multi-Inno MI0283QT display panel - If M is selected the module will be called mi0283qt. + DRM driver for the MIPI DBI compatible display panels. + + Supported panels include: + * Multi-Inno MI0283QT + + If M is selected the module will be called mipi-panel. diff --git a/drivers/gpu/drm/tinydrm/Makefile b/drivers/gpu/drm/tinydrm/Makefile index 7a3604c..7eae65e 100644 --- a/drivers/gpu/drm/tinydrm/Makefile +++ b/drivers/gpu/drm/tinydrm/Makefile @@ -4,4 +4,4 @@ obj-$(CONFIG_DRM_TINYDRM) += core/ obj-$(CONFIG_TINYDRM_MIPI_DBI) += mipi-dbi.o # Displays -obj-$(CONFIG_TINYDRM_MI0283QT) += mi0283qt.o +obj-$(CONFIG_TINYDRM_MIPI_PANEL) += mipi-panel.o diff --git a/drivers/gpu/drm/tinydrm/mi0283qt.c b/drivers/gpu/drm/tinydrm/mi0283qt.c deleted file mode 100644 index 2680dab..0000000 --- a/drivers/gpu/drm/tinydrm/mi0283qt.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * DRM driver for Multi-Inno MI0283QT panels - * - * Copyright 2016 Noralf Trønnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <drm/tinydrm/ili9341.h> -#include <drm/tinydrm/mipi-dbi.h> -#include <drm/tinydrm/tinydrm-helpers.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/regulator/consumer.h> -#include <linux/spi/spi.h> -#include <video/mipi_display.h> - -static int mi0283qt_init(struct mipi_dbi *mipi) -{ - struct tinydrm_device *tdev = &mipi->tinydrm; - struct device *dev = tdev->drm->dev; - u8 addr_mode; - int ret; - - DRM_DEBUG_KMS("\n"); - - ret = regulator_enable(mipi->regulator); - if (ret) { - dev_err(dev, "Failed to enable regulator %d\n", ret); - return ret; - } - - /* Avoid flicker by skipping setup if the bootloader has done it */ - if (mipi_dbi_display_is_on(mipi)) - return 0; - - mipi_dbi_hw_reset(mipi); - ret = mipi_dbi_command(mipi, MIPI_DCS_SOFT_RESET); - if (ret) { - dev_err(dev, "Error sending command %d\n", ret); - regulator_disable(mipi->regulator); - return ret; - } - - msleep(20); - - mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_OFF); - - mipi_dbi_command(mipi, ILI9341_PWCTRLB, 0x00, 0x83, 0x30); - mipi_dbi_command(mipi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81); - mipi_dbi_command(mipi, ILI9341_DTCTRLA, 0x85, 0x01, 0x79); - mipi_dbi_command(mipi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02); - mipi_dbi_command(mipi, ILI9341_PUMPCTRL, 0x20); - mipi_dbi_command(mipi, ILI9341_DTCTRLB, 0x00, 0x00); - - /* Power Control */ - mipi_dbi_command(mipi, ILI9341_PWCTRL1, 0x26); - mipi_dbi_command(mipi, ILI9341_PWCTRL2, 0x11); - /* VCOM */ - mipi_dbi_command(mipi, ILI9341_VMCTRL1, 0x35, 0x3e); - mipi_dbi_command(mipi, ILI9341_VMCTRL2, 0xbe); - - /* Memory Access Control */ - mipi_dbi_command(mipi, MIPI_DCS_SET_PIXEL_FORMAT, 0x55); - - switch (mipi->rotation) { - default: - addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY | - ILI9341_MADCTL_MX; - break; - case 90: - addr_mode = ILI9341_MADCTL_MY; - break; - case 180: - addr_mode = ILI9341_MADCTL_MV; - break; - case 270: - addr_mode = ILI9341_MADCTL_MX; - break; - } - addr_mode |= ILI9341_MADCTL_BGR; - mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode); - - /* Frame Rate */ - mipi_dbi_command(mipi, ILI9341_FRMCTR1, 0x00, 0x1b); - - /* Gamma */ - mipi_dbi_command(mipi, ILI9341_EN3GAM, 0x08); - mipi_dbi_command(mipi, MIPI_DCS_SET_GAMMA_CURVE, 0x01); - mipi_dbi_command(mipi, ILI9341_PGAMCTRL, - 0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87, - 0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00); - mipi_dbi_command(mipi, ILI9341_NGAMCTRL, - 0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78, - 0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f); - - /* DDRAM */ - mipi_dbi_command(mipi, ILI9341_ETMOD, 0x07); - - /* Display */ - mipi_dbi_command(mipi, ILI9341_DISCTRL, 0x0a, 0x82, 0x27, 0x00); - mipi_dbi_command(mipi, MIPI_DCS_EXIT_SLEEP_MODE); - msleep(100); - - mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON); - msleep(100); - - return 0; -} - -static void mi0283qt_fini(void *data) -{ - struct mipi_dbi *mipi = data; - - DRM_DEBUG_KMS("\n"); - regulator_disable(mipi->regulator); -} - -static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = { - .enable = mipi_dbi_pipe_enable, - .disable = mipi_dbi_pipe_disable, - .update = tinydrm_display_pipe_update, - .prepare_fb = tinydrm_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode mi0283qt_mode = { - TINYDRM_MODE(320, 240, 58, 43), -}; - -DEFINE_DRM_GEM_CMA_FOPS(mi0283qt_fops); - -static struct drm_driver mi0283qt_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | - DRIVER_ATOMIC, - .fops = &mi0283qt_fops, - TINYDRM_GEM_DRIVER_OPS, - .lastclose = tinydrm_lastclose, - .debugfs_init = mipi_dbi_debugfs_init, - .name = "mi0283qt", - .desc = "Multi-Inno MI0283QT", - .date = "20160614", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id mi0283qt_of_match[] = { - { .compatible = "multi-inno,mi0283qt" }, - {}, -}; -MODULE_DEVICE_TABLE(of, mi0283qt_of_match); - -static const struct spi_device_id mi0283qt_id[] = { - { "mi0283qt", 0 }, - { }, -}; -MODULE_DEVICE_TABLE(spi, mi0283qt_id); - -static int mi0283qt_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct tinydrm_device *tdev; - struct mipi_dbi *mipi; - struct gpio_desc *dc; - u32 rotation = 0; - int ret; - - mipi = devm_kzalloc(dev, sizeof(*mipi), GFP_KERNEL); - if (!mipi) - return -ENOMEM; - - mipi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(mipi->reset)) { - dev_err(dev, "Failed to get gpio 'reset'\n"); - return PTR_ERR(mipi->reset); - } - - dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW); - if (IS_ERR(dc)) { - dev_err(dev, "Failed to get gpio 'dc'\n"); - return PTR_ERR(dc); - } - - mipi->regulator = devm_regulator_get(dev, "power"); - if (IS_ERR(mipi->regulator)) - return PTR_ERR(mipi->regulator); - - mipi->backlight = tinydrm_of_find_backlight(dev); - if (IS_ERR(mipi->backlight)) - return PTR_ERR(mipi->backlight); - - device_property_read_u32(dev, "rotation", &rotation); - - ret = mipi_dbi_spi_init(spi, mipi, dc, &mi0283qt_pipe_funcs, - &mi0283qt_driver, &mi0283qt_mode, - MIPI_DCS_PIXEL_FMT_16BIT, rotation); - if (ret) - return ret; - - ret = mi0283qt_init(mipi); - if (ret) - return ret; - - /* use devres to fini after drm unregister (drv->remove is before) */ - ret = devm_add_action(dev, mi0283qt_fini, mipi); - if (ret) { - mi0283qt_fini(mipi); - return ret; - } - - tdev = &mipi->tinydrm; - - ret = devm_tinydrm_register(tdev); - if (ret) - return ret; - - spi_set_drvdata(spi, mipi); - - DRM_DEBUG_DRIVER("Initialized %s:%s @%uMHz on minor %d\n", - tdev->drm->driver->name, dev_name(dev), - spi->max_speed_hz / 1000000, - tdev->drm->primary->index); - - return 0; -} - -static void mi0283qt_shutdown(struct spi_device *spi) -{ - struct mipi_dbi *mipi = spi_get_drvdata(spi); - - tinydrm_shutdown(&mipi->tinydrm); -} - -static int __maybe_unused mi0283qt_pm_suspend(struct device *dev) -{ - struct mipi_dbi *mipi = dev_get_drvdata(dev); - int ret; - - ret = tinydrm_suspend(&mipi->tinydrm); - if (ret) - return ret; - - mi0283qt_fini(mipi); - - return 0; -} - -static int __maybe_unused mi0283qt_pm_resume(struct device *dev) -{ - struct mipi_dbi *mipi = dev_get_drvdata(dev); - int ret; - - ret = mi0283qt_init(mipi); - if (ret) - return ret; - - return tinydrm_resume(&mipi->tinydrm); -} - -static const struct dev_pm_ops mi0283qt_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(mi0283qt_pm_suspend, mi0283qt_pm_resume) -}; - -static struct spi_driver mi0283qt_spi_driver = { - .driver = { - .name = "mi0283qt", - .owner = THIS_MODULE, - .of_match_table = mi0283qt_of_match, - .pm = &mi0283qt_pm_ops, - }, - .id_table = mi0283qt_id, - .probe = mi0283qt_probe, - .shutdown = mi0283qt_shutdown, -}; -module_spi_driver(mi0283qt_spi_driver); - -MODULE_DESCRIPTION("Multi-Inno MI0283QT DRM driver"); -MODULE_AUTHOR("Noralf Trønnes"); -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tinydrm/mipi-panel.c b/drivers/gpu/drm/tinydrm/mipi-panel.c new file mode 100644 index 0000000..64344f0 --- /dev/null +++ b/drivers/gpu/drm/tinydrm/mipi-panel.c @@ -0,0 +1,284 @@ +/* + * DRM driver for MIPI DBI compatible panels + * + * Copyright 2016 Noralf Trønnes + * Copyright 2017 David Lechner <david@lechnology.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <drm/tinydrm/ili9341.h> +#include <drm/tinydrm/mipi-dbi.h> +#include <drm/tinydrm/tinydrm-helpers.h> +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <linux/property.h> +#include <linux/regulator/consumer.h> +#include <linux/spi/spi.h> +#include <video/mipi_display.h> + +static int mipi_panel_init(struct mipi_dbi *mipi) +{ + struct tinydrm_device *tdev = &mipi->tinydrm; + struct device *dev = tdev->drm->dev; + u8 addr_mode; + int ret; + + DRM_DEBUG_KMS("\n"); + + ret = regulator_enable(mipi->regulator); + if (ret) { + dev_err(dev, "Failed to enable regulator %d\n", ret); + return ret; + } + + /* Avoid flicker by skipping setup if the bootloader has done it */ + if (mipi_dbi_display_is_on(mipi)) + return 0; + + mipi_dbi_hw_reset(mipi); + ret = mipi_dbi_command(mipi, MIPI_DCS_SOFT_RESET); + if (ret) { + dev_err(dev, "Error sending command %d\n", ret); + regulator_disable(mipi->regulator); + return ret; + } + + msleep(20); + + mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_OFF); + + mipi_dbi_command(mipi, ILI9341_PWCTRLB, 0x00, 0x83, 0x30); + mipi_dbi_command(mipi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81); + mipi_dbi_command(mipi, ILI9341_DTCTRLA, 0x85, 0x01, 0x79); + mipi_dbi_command(mipi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02); + mipi_dbi_command(mipi, ILI9341_PUMPCTRL, 0x20); + mipi_dbi_command(mipi, ILI9341_DTCTRLB, 0x00, 0x00); + + /* Power Control */ + mipi_dbi_command(mipi, ILI9341_PWCTRL1, 0x26); + mipi_dbi_command(mipi, ILI9341_PWCTRL2, 0x11); + /* VCOM */ + mipi_dbi_command(mipi, ILI9341_VMCTRL1, 0x35, 0x3e); + mipi_dbi_command(mipi, ILI9341_VMCTRL2, 0xbe); + + /* Memory Access Control */ + mipi_dbi_command(mipi, MIPI_DCS_SET_PIXEL_FORMAT, 0x55); + + switch (mipi->rotation) { + default: + addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY | + ILI9341_MADCTL_MX; + break; + case 90: + addr_mode = ILI9341_MADCTL_MY; + break; + case 180: + addr_mode = ILI9341_MADCTL_MV; + break; + case 270: + addr_mode = ILI9341_MADCTL_MX; + break; + } + addr_mode |= ILI9341_MADCTL_BGR; + mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode); + + /* Frame Rate */ + mipi_dbi_command(mipi, ILI9341_FRMCTR1, 0x00, 0x1b); + + /* Gamma */ + mipi_dbi_command(mipi, ILI9341_EN3GAM, 0x08); + mipi_dbi_command(mipi, MIPI_DCS_SET_GAMMA_CURVE, 0x01); + mipi_dbi_command(mipi, ILI9341_PGAMCTRL, + 0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87, + 0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00); + mipi_dbi_command(mipi, ILI9341_NGAMCTRL, + 0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78, + 0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f); + + /* DDRAM */ + mipi_dbi_command(mipi, ILI9341_ETMOD, 0x07); + + /* Display */ + mipi_dbi_command(mipi, ILI9341_DISCTRL, 0x0a, 0x82, 0x27, 0x00); + mipi_dbi_command(mipi, MIPI_DCS_EXIT_SLEEP_MODE); + msleep(100); + + mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON); + msleep(100); + + return 0; +} + +static void mipi_panel_fini(void *data) +{ + struct mipi_dbi *mipi = data; + + DRM_DEBUG_KMS("\n"); + regulator_disable(mipi->regulator); +} + +static const struct drm_simple_display_pipe_funcs mipi_panel_pipe_funcs = { + .enable = mipi_dbi_pipe_enable, + .disable = mipi_dbi_pipe_disable, + .update = tinydrm_display_pipe_update, + .prepare_fb = tinydrm_display_pipe_prepare_fb, +}; + +static const struct drm_display_mode mipi_panel_mode = { + TINYDRM_MODE(320, 240, 58, 43), +}; + +DEFINE_DRM_GEM_CMA_FOPS(mipi_panel_fops); + +static struct drm_driver mipi_panel_driver = { + .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | + DRIVER_ATOMIC, + .fops = &mipi_panel_fops, + TINYDRM_GEM_DRIVER_OPS, + .lastclose = tinydrm_lastclose, + .debugfs_init = mipi_dbi_debugfs_init, + .name = "mipi-panel", + .desc = "MIPI DBI compatible panel", + .date = "20160614", + .major = 1, + .minor = 0, +}; + +static const struct of_device_id mipi_panel_of_match[] = { + { .compatible = "multi-inno,mi0283qt" }, + {}, +}; +MODULE_DEVICE_TABLE(of, mipi_panel_of_match); + +static const struct spi_device_id mipi_panel_id[] = { + { "mi0283qt", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(spi, mipi_panel_id); + +static int mipi_panel_probe(struct spi_device *spi) +{ + struct device *dev = &spi->dev; + struct tinydrm_device *tdev; + struct mipi_dbi *mipi; + struct gpio_desc *dc; + u32 rotation = 0; + int ret; + + mipi = devm_kzalloc(dev, sizeof(*mipi), GFP_KERNEL); + if (!mipi) + return -ENOMEM; + + mipi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(mipi->reset)) { + dev_err(dev, "Failed to get gpio 'reset'\n"); + return PTR_ERR(mipi->reset); + } + + dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW); + if (IS_ERR(dc)) { + dev_err(dev, "Failed to get gpio 'dc'\n"); + return PTR_ERR(dc); + } + + mipi->regulator = devm_regulator_get(dev, "power"); + if (IS_ERR(mipi->regulator)) + return PTR_ERR(mipi->regulator); + + mipi->backlight = tinydrm_of_find_backlight(dev); + if (IS_ERR(mipi->backlight)) + return PTR_ERR(mipi->backlight); + + device_property_read_u32(dev, "rotation", &rotation); + + ret = mipi_dbi_spi_init(spi, mipi, dc, &mipi_panel_pipe_funcs, + &mipi_panel_driver, &mipi_panel_mode, + MIPI_DCS_PIXEL_FMT_16BIT, rotation); + if (ret) + return ret; + + ret = mipi_panel_init(mipi); + if (ret) + return ret; + + /* use devres to fini after drm unregister (drv->remove is before) */ + ret = devm_add_action(dev, mipi_panel_fini, mipi); + if (ret) { + mipi_panel_fini(mipi); + return ret; + } + + tdev = &mipi->tinydrm; + + ret = devm_tinydrm_register(tdev); + if (ret) + return ret; + + spi_set_drvdata(spi, mipi); + + DRM_DEBUG_DRIVER("Initialized %s:%s @%uMHz on minor %d\n", + tdev->drm->driver->name, dev_name(dev), + spi->max_speed_hz / 1000000, + tdev->drm->primary->index); + + return 0; +} + +static void mipi_panel_shutdown(struct spi_device *spi) +{ + struct mipi_dbi *mipi = spi_get_drvdata(spi); + + tinydrm_shutdown(&mipi->tinydrm); +} + +static int __maybe_unused mipi_panel_pm_suspend(struct device *dev) +{ + struct mipi_dbi *mipi = dev_get_drvdata(dev); + int ret; + + ret = tinydrm_suspend(&mipi->tinydrm); + if (ret) + return ret; + + mipi_panel_fini(mipi); + + return 0; +} + +static int __maybe_unused mipi_panel_pm_resume(struct device *dev) +{ + struct mipi_dbi *mipi = dev_get_drvdata(dev); + int ret; + + ret = mipi_panel_init(mipi); + if (ret) + return ret; + + return tinydrm_resume(&mipi->tinydrm); +} + +static const struct dev_pm_ops mipi_panel_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(mipi_panel_pm_suspend, mipi_panel_pm_resume) +}; + +static struct spi_driver mipi_panel_spi_driver = { + .driver = { + .name = "mipi-panel", + .owner = THIS_MODULE, + .of_match_table = mipi_panel_of_match, + .pm = &mipi_panel_pm_ops, + }, + .id_table = mipi_panel_id, + .probe = mipi_panel_probe, + .shutdown = mipi_panel_shutdown, +}; +module_spi_driver(mipi_panel_spi_driver); + +MODULE_DESCRIPTION("MIPI DBI panel DRM driver"); +MODULE_AUTHOR("Noralf Trønnes"); +MODULE_LICENSE("GPL");

[3/6] drm/tinydrm: rename mi028qt module to mipi-panel

Commit Message

Patch