mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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drm/panel: Add Kingdisplay KD097D04 panel driver
Support Kingdisplay KD097D04 9.7" 1536x2048 TFT LCD panel, it is a MIPI dual-DSI panel. v4-resend: - Thierry noted missing dt-bindings for v4 but forgot that he already had applied them one kernel release back in https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ebc950fdff6d5f9250cd5a5a348af97f7d8508df v4: - address Philipp's comments - real range for usleep_range and - poweroff ordering in kingdisplay_panel_prepare - return value beautification in panel_probe - update author naming for full name v3: - address Thierry's comments - error handling for init dsi writes in init - unconditionally remove the panel - don't use drm_panel_detach - a bit of variable signednes wiggling - I did talk to ChromeOS people and the delays really should be as short as possible, so dropped the 100ms from the delay comments v2: - update timing + cmds from chromeos kernel - new backlight API including switch to devm_of_find_backlight - fix most of Sean Paul's comments enable/prepare tracking seems something all panels do - document origins of the init sequence - lanes per dsi interface to 4 (two interfaces). Matches how tegra and pending rockchip dual-dsi handle (dual-)dsi lanes - spdx header instead of license boilerplate Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Sean Paul <sean@poorly.run> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181030091528.28211-1-heiko@sntech.de
This commit is contained in:
Nickey Yang
Thierry Reding
parent
849b2e3ff9
commit
2a994cbed6
@ -77,6 +77,17 @@ config DRM_PANEL_JDI_LT070ME05000
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The panel has a 1200(RGB)×1920 (WUXGA) resolution and uses
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24 bit per pixel.
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config DRM_PANEL_KINGDISPLAY_KD097D04
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tristate "Kingdisplay kd097d04 panel"
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depends on OF
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depends on DRM_MIPI_DSI
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depends on BACKLIGHT_CLASS_DEVICE
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help
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Say Y here if you want to enable support for Kingdisplay kd097d04
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TFT-LCD modules. The panel has a 1536x2048 resolution and uses
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24 bit RGB per pixel. It provides a MIPI DSI interface to
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the host and has a built-in LED backlight.
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config DRM_PANEL_SAMSUNG_LD9040
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tristate "Samsung LD9040 RGB/SPI panel"
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depends on OF && SPI
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@ -6,6 +6,7 @@ obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
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obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o
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obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o
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obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o
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obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o
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obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
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obj-$(CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO) += panel-olimex-lcd-olinuxino.o
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obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o
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473
drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
Normal file
473
drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
Normal file
@ -0,0 +1,473 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
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*/
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#include <linux/backlight.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 <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_panel.h>
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#include <video/mipi_display.h>
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struct kingdisplay_panel {
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struct drm_panel base;
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struct mipi_dsi_device *link;
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struct backlight_device *backlight;
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struct regulator *supply;
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struct gpio_desc *enable_gpio;
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bool prepared;
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bool enabled;
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};
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struct kingdisplay_panel_cmd {
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char cmd;
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char data;
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};
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/*
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* According to the discussion on
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* https://review.coreboot.org/#/c/coreboot/+/22472/
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* the panel init array is not part of the panels datasheet but instead
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* just came in this form from the panel vendor.
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*/
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static const struct kingdisplay_panel_cmd init_code[] = {
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/* voltage setting */
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{ 0xB0, 0x00 },
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{ 0xB2, 0x02 },
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{ 0xB3, 0x11 },
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{ 0xB4, 0x00 },
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{ 0xB6, 0x80 },
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/* VCOM disable */
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{ 0xB7, 0x02 },
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{ 0xB8, 0x80 },
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{ 0xBA, 0x43 },
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/* VCOM setting */
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{ 0xBB, 0x53 },
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/* VSP setting */
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{ 0xBC, 0x0A },
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/* VSN setting */
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{ 0xBD, 0x4A },
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/* VGH setting */
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{ 0xBE, 0x2F },
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/* VGL setting */
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{ 0xBF, 0x1A },
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{ 0xF0, 0x39 },
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{ 0xF1, 0x22 },
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/* Gamma setting */
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{ 0xB0, 0x02 },
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{ 0xC0, 0x00 },
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{ 0xC1, 0x01 },
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{ 0xC2, 0x0B },
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{ 0xC3, 0x15 },
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{ 0xC4, 0x22 },
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{ 0xC5, 0x11 },
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{ 0xC6, 0x15 },
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{ 0xC7, 0x19 },
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{ 0xC8, 0x1A },
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{ 0xC9, 0x16 },
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{ 0xCA, 0x18 },
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{ 0xCB, 0x13 },
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{ 0xCC, 0x18 },
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{ 0xCD, 0x13 },
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{ 0xCE, 0x1C },
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{ 0xCF, 0x19 },
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{ 0xD0, 0x21 },
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{ 0xD1, 0x2C },
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{ 0xD2, 0x2F },
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{ 0xD3, 0x30 },
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{ 0xD4, 0x19 },
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{ 0xD5, 0x1F },
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{ 0xD6, 0x00 },
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{ 0xD7, 0x01 },
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{ 0xD8, 0x0B },
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{ 0xD9, 0x15 },
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{ 0xDA, 0x22 },
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{ 0xDB, 0x11 },
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{ 0xDC, 0x15 },
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{ 0xDD, 0x19 },
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{ 0xDE, 0x1A },
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{ 0xDF, 0x16 },
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{ 0xE0, 0x18 },
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{ 0xE1, 0x13 },
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{ 0xE2, 0x18 },
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{ 0xE3, 0x13 },
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{ 0xE4, 0x1C },
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{ 0xE5, 0x19 },
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{ 0xE6, 0x21 },
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{ 0xE7, 0x2C },
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{ 0xE8, 0x2F },
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{ 0xE9, 0x30 },
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{ 0xEA, 0x19 },
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{ 0xEB, 0x1F },
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/* GOA MUX setting */
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{ 0xB0, 0x01 },
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{ 0xC0, 0x10 },
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{ 0xC1, 0x0F },
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{ 0xC2, 0x0E },
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{ 0xC3, 0x0D },
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{ 0xC4, 0x0C },
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{ 0xC5, 0x0B },
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{ 0xC6, 0x0A },
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{ 0xC7, 0x09 },
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{ 0xC8, 0x08 },
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{ 0xC9, 0x07 },
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{ 0xCA, 0x06 },
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{ 0xCB, 0x05 },
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{ 0xCC, 0x00 },
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{ 0xCD, 0x01 },
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{ 0xCE, 0x02 },
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{ 0xCF, 0x03 },
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{ 0xD0, 0x04 },
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{ 0xD6, 0x10 },
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{ 0xD7, 0x0F },
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{ 0xD8, 0x0E },
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{ 0xD9, 0x0D },
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{ 0xDA, 0x0C },
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{ 0xDB, 0x0B },
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{ 0xDC, 0x0A },
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{ 0xDD, 0x09 },
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{ 0xDE, 0x08 },
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{ 0xDF, 0x07 },
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{ 0xE0, 0x06 },
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{ 0xE1, 0x05 },
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{ 0xE2, 0x00 },
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{ 0xE3, 0x01 },
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{ 0xE4, 0x02 },
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{ 0xE5, 0x03 },
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{ 0xE6, 0x04 },
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{ 0xE7, 0x00 },
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{ 0xEC, 0xC0 },
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/* GOA timing setting */
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{ 0xB0, 0x03 },
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{ 0xC0, 0x01 },
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{ 0xC2, 0x6F },
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{ 0xC3, 0x6F },
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{ 0xC5, 0x36 },
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{ 0xC8, 0x08 },
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{ 0xC9, 0x04 },
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{ 0xCA, 0x41 },
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{ 0xCC, 0x43 },
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{ 0xCF, 0x60 },
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{ 0xD2, 0x04 },
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{ 0xD3, 0x04 },
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{ 0xD4, 0x03 },
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{ 0xD5, 0x02 },
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{ 0xD6, 0x01 },
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{ 0xD7, 0x00 },
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{ 0xDB, 0x01 },
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{ 0xDE, 0x36 },
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{ 0xE6, 0x6F },
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{ 0xE7, 0x6F },
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/* GOE setting */
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{ 0xB0, 0x06 },
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{ 0xB8, 0xA5 },
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{ 0xC0, 0xA5 },
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{ 0xD5, 0x3F },
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};
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static inline
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struct kingdisplay_panel *to_kingdisplay_panel(struct drm_panel *panel)
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{
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return container_of(panel, struct kingdisplay_panel, base);
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}
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static int kingdisplay_panel_disable(struct drm_panel *panel)
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{
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struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
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int err;
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if (!kingdisplay->enabled)
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return 0;
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backlight_disable(kingdisplay->backlight);
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err = mipi_dsi_dcs_set_display_off(kingdisplay->link);
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if (err < 0)
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DRM_DEV_ERROR(panel->dev, "failed to set display off: %d\n",
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err);
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kingdisplay->enabled = false;
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return 0;
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}
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static int kingdisplay_panel_unprepare(struct drm_panel *panel)
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{
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struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
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int err;
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if (!kingdisplay->prepared)
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return 0;
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err = mipi_dsi_dcs_enter_sleep_mode(kingdisplay->link);
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if (err < 0) {
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DRM_DEV_ERROR(panel->dev, "failed to enter sleep mode: %d\n",
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err);
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return err;
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}
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/* T15: 120ms */
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msleep(120);
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gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
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err = regulator_disable(kingdisplay->supply);
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if (err < 0)
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return err;
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kingdisplay->prepared = false;
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return 0;
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}
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static int kingdisplay_panel_prepare(struct drm_panel *panel)
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{
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struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
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int err, regulator_err;
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unsigned int i;
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if (kingdisplay->prepared)
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return 0;
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gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
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err = regulator_enable(kingdisplay->supply);
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if (err < 0)
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return err;
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/* T2: 15ms */
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usleep_range(15000, 16000);
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gpiod_set_value_cansleep(kingdisplay->enable_gpio, 1);
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/* T4: 15ms */
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usleep_range(15000, 16000);
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for (i = 0; i < ARRAY_SIZE(init_code); i++) {
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err = mipi_dsi_generic_write(kingdisplay->link, &init_code[i],
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sizeof(struct kingdisplay_panel_cmd));
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if (err < 0) {
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DRM_DEV_ERROR(panel->dev, "failed write init cmds: %d\n",
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err);
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goto poweroff;
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}
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}
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err = mipi_dsi_dcs_exit_sleep_mode(kingdisplay->link);
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if (err < 0) {
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DRM_DEV_ERROR(panel->dev, "failed to exit sleep mode: %d\n",
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err);
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goto poweroff;
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}
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/* T6: 120ms */
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msleep(120);
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err = mipi_dsi_dcs_set_display_on(kingdisplay->link);
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if (err < 0) {
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DRM_DEV_ERROR(panel->dev, "failed to set display on: %d\n",
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err);
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goto poweroff;
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}
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/* T7: 10ms */
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usleep_range(10000, 11000);
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kingdisplay->prepared = true;
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return 0;
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poweroff:
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gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
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regulator_err = regulator_disable(kingdisplay->supply);
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if (regulator_err)
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DRM_DEV_ERROR(panel->dev, "failed to disable regulator: %d\n",
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regulator_err);
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return err;
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}
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static int kingdisplay_panel_enable(struct drm_panel *panel)
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{
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struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
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int ret;
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if (kingdisplay->enabled)
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return 0;
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ret = backlight_enable(kingdisplay->backlight);
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if (ret) {
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DRM_DEV_ERROR(panel->drm->dev,
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"Failed to enable backlight %d\n", ret);
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return ret;
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}
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kingdisplay->enabled = true;
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return 0;
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}
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static const struct drm_display_mode default_mode = {
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.clock = 229000,
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.hdisplay = 1536,
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.hsync_start = 1536 + 100,
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.hsync_end = 1536 + 100 + 24,
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.htotal = 1536 + 100 + 24 + 100,
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.vdisplay = 2048,
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.vsync_start = 2048 + 95,
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.vsync_end = 2048 + 95 + 2,
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.vtotal = 2048 + 95 + 2 + 23,
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.vrefresh = 60,
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};
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static int kingdisplay_panel_get_modes(struct drm_panel *panel)
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{
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struct drm_display_mode *mode;
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mode = drm_mode_duplicate(panel->drm, &default_mode);
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if (!mode) {
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DRM_DEV_ERROR(panel->drm->dev, "failed to add mode %ux%ux@%u\n",
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default_mode.hdisplay, default_mode.vdisplay,
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default_mode.vrefresh);
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return -ENOMEM;
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}
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drm_mode_set_name(mode);
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drm_mode_probed_add(panel->connector, mode);
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panel->connector->display_info.width_mm = 147;
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panel->connector->display_info.height_mm = 196;
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panel->connector->display_info.bpc = 8;
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return 1;
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}
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static const struct drm_panel_funcs kingdisplay_panel_funcs = {
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.disable = kingdisplay_panel_disable,
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.unprepare = kingdisplay_panel_unprepare,
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.prepare = kingdisplay_panel_prepare,
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.enable = kingdisplay_panel_enable,
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.get_modes = kingdisplay_panel_get_modes,
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};
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static const struct of_device_id kingdisplay_of_match[] = {
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{ .compatible = "kingdisplay,kd097d04", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, kingdisplay_of_match);
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static int kingdisplay_panel_add(struct kingdisplay_panel *kingdisplay)
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{
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struct device *dev = &kingdisplay->link->dev;
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int err;
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kingdisplay->supply = devm_regulator_get(dev, "power");
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if (IS_ERR(kingdisplay->supply))
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return PTR_ERR(kingdisplay->supply);
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kingdisplay->enable_gpio = devm_gpiod_get_optional(dev, "enable",
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GPIOD_OUT_HIGH);
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if (IS_ERR(kingdisplay->enable_gpio)) {
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err = PTR_ERR(kingdisplay->enable_gpio);
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dev_dbg(dev, "failed to get enable gpio: %d\n", err);
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kingdisplay->enable_gpio = NULL;
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}
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kingdisplay->backlight = devm_of_find_backlight(dev);
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if (IS_ERR(kingdisplay->backlight))
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return PTR_ERR(kingdisplay->backlight);
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drm_panel_init(&kingdisplay->base);
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kingdisplay->base.funcs = &kingdisplay_panel_funcs;
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kingdisplay->base.dev = &kingdisplay->link->dev;
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return drm_panel_add(&kingdisplay->base);
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}
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static void kingdisplay_panel_del(struct kingdisplay_panel *kingdisplay)
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{
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drm_panel_remove(&kingdisplay->base);
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}
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static int kingdisplay_panel_probe(struct mipi_dsi_device *dsi)
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{
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struct kingdisplay_panel *kingdisplay;
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int err;
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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_VIDEO_BURST |
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MIPI_DSI_MODE_LPM;
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kingdisplay = devm_kzalloc(&dsi->dev, sizeof(*kingdisplay), GFP_KERNEL);
|
||||
if (!kingdisplay)
|
||||
return -ENOMEM;
|
||||
|
||||
mipi_dsi_set_drvdata(dsi, kingdisplay);
|
||||
kingdisplay->link = dsi;
|
||||
|
||||
err = kingdisplay_panel_add(kingdisplay);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
return mipi_dsi_attach(dsi);
|
||||
}
|
||||
|
||||
static int kingdisplay_panel_remove(struct mipi_dsi_device *dsi)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi);
|
||||
int err;
|
||||
|
||||
err = kingdisplay_panel_unprepare(&kingdisplay->base);
|
||||
if (err < 0)
|
||||
DRM_DEV_ERROR(&dsi->dev, "failed to unprepare panel: %d\n",
|
||||
err);
|
||||
|
||||
err = kingdisplay_panel_disable(&kingdisplay->base);
|
||||
if (err < 0)
|
||||
DRM_DEV_ERROR(&dsi->dev, "failed to disable panel: %d\n", err);
|
||||
|
||||
err = mipi_dsi_detach(dsi);
|
||||
if (err < 0)
|
||||
DRM_DEV_ERROR(&dsi->dev, "failed to detach from DSI host: %d\n",
|
||||
err);
|
||||
|
||||
kingdisplay_panel_del(kingdisplay);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void kingdisplay_panel_shutdown(struct mipi_dsi_device *dsi)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi);
|
||||
|
||||
kingdisplay_panel_unprepare(&kingdisplay->base);
|
||||
kingdisplay_panel_disable(&kingdisplay->base);
|
||||
}
|
||||
|
||||
static struct mipi_dsi_driver kingdisplay_panel_driver = {
|
||||
.driver = {
|
||||
.name = "panel-kingdisplay-kd097d04",
|
||||
.of_match_table = kingdisplay_of_match,
|
||||
},
|
||||
.probe = kingdisplay_panel_probe,
|
||||
.remove = kingdisplay_panel_remove,
|
||||
.shutdown = kingdisplay_panel_shutdown,
|
||||
};
|
||||
module_mipi_dsi_driver(kingdisplay_panel_driver);
|
||||
|
||||
MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
|
||||
MODULE_AUTHOR("Nickey Yang <nickey.yang@rock-chips.com>");
|
||||
MODULE_DESCRIPTION("kingdisplay KD097D04 panel driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue
Block a user