626 lines
17 KiB
Diff
626 lines
17 KiB
Diff
|
From aa593278d760e468f79e2c785a96b7b049653a2e Mon Sep 17 00:00:00 2001
|
||
|
From: Potato <nikko@faint.day>
|
||
|
Date: Fri, 20 Oct 2023 23:18:19 +0800
|
||
|
Subject: [PATCH 2/6] drm: panel: add clockwork cwu50
|
||
|
|
||
|
- set `power_off_case` to 2(other than 1) to enable power off by
|
||
|
DCS command
|
||
|
---
|
||
|
drivers/gpu/drm/panel/Kconfig | 12 +
|
||
|
drivers/gpu/drm/panel/Makefile | 1 +
|
||
|
drivers/gpu/drm/panel/panel-clockwork-cwu50.c | 567 ++++++++++++++++++
|
||
|
3 files changed, 580 insertions(+)
|
||
|
create mode 100644 drivers/gpu/drm/panel/panel-clockwork-cwu50.c
|
||
|
|
||
|
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
|
||
|
index 168403f59175..4a99ef1b0178 100644
|
||
|
--- a/drivers/gpu/drm/panel/Kconfig
|
||
|
+++ b/drivers/gpu/drm/panel/Kconfig
|
||
|
@@ -68,6 +68,18 @@ config DRM_PANEL_BOE_TV101WUM_NL6
|
||
|
Say Y here if you want to support for BOE TV101WUM and AUO KD101N80
|
||
|
45NA WUXGA PANEL DSI Video Mode panel
|
||
|
|
||
|
+config DRM_PANEL_CLOCKWORK_CWU50
|
||
|
+ tristate "Clockwork CWU50 panel"
|
||
|
+ depends on OF
|
||
|
+ depends on DRM_MIPI_DSI
|
||
|
+ depends on BACKLIGHT_CLASS_DEVICE
|
||
|
+ help
|
||
|
+ Say Y here if you want to enable support for the Clockwork CWU50
|
||
|
+ JD9365D-based panel, e.g. as used within the Clockwork uConsole.
|
||
|
+ The panel has a 720x1280 resolution and uses 24 bit RGB per pixel.
|
||
|
+
|
||
|
+ To compile this driver as a module, choose M here.
|
||
|
+
|
||
|
config DRM_PANEL_DSI_CM
|
||
|
tristate "Generic DSI command mode panels"
|
||
|
depends on OF
|
||
|
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
|
||
|
index bc4ded65aa4b..25d9c19d9cd0 100644
|
||
|
--- a/drivers/gpu/drm/panel/Makefile
|
||
|
+++ b/drivers/gpu/drm/panel/Makefile
|
||
|
@@ -5,6 +5,7 @@ obj-$(CONFIG_DRM_PANEL_ASUS_Z00T_TM5P5_NT35596) += panel-asus-z00t-tm5p5-n35596.
|
||
|
obj-$(CONFIG_DRM_PANEL_BOE_BF060Y8M_AJ0) += panel-boe-bf060y8m-aj0.o
|
||
|
obj-$(CONFIG_DRM_PANEL_BOE_HIMAX8279D) += panel-boe-himax8279d.o
|
||
|
obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o
|
||
|
+obj-$(CONFIG_DRM_PANEL_CLOCKWORK_CWU50) += panel-clockwork-cwu50.o
|
||
|
obj-$(CONFIG_DRM_PANEL_DSI_CM) += panel-dsi-cm.o
|
||
|
obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o
|
||
|
obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
|
||
|
diff --git a/drivers/gpu/drm/panel/panel-clockwork-cwu50.c b/drivers/gpu/drm/panel/panel-clockwork-cwu50.c
|
||
|
new file mode 100644
|
||
|
index 000000000000..a814d6bb25dd
|
||
|
--- /dev/null
|
||
|
+++ b/drivers/gpu/drm/panel/panel-clockwork-cwu50.c
|
||
|
@@ -0,0 +1,567 @@
|
||
|
+/*
|
||
|
+ * SPDX-License-Identifier: GPL-2.0+
|
||
|
+ * Copyright (c) 2021 Clockwork Tech LLC
|
||
|
+ * Copyright (c) 2021 Max Fierke <max@maxfierke.com>
|
||
|
+ *
|
||
|
+ */
|
||
|
+
|
||
|
+#include <drm/drm_modes.h>
|
||
|
+#include <drm/drm_mipi_dsi.h>
|
||
|
+#include <drm/drm_panel.h>
|
||
|
+#include <linux/backlight.h>
|
||
|
+#include <linux/gpio/consumer.h>
|
||
|
+#include <linux/regulator/consumer.h>
|
||
|
+#include <linux/delay.h>
|
||
|
+#include <linux/of_device.h>
|
||
|
+#include <linux/module.h>
|
||
|
+#include <video/mipi_display.h>
|
||
|
+
|
||
|
+static int power_off_case = 1;
|
||
|
+module_param(power_off_case,int,0660);
|
||
|
+
|
||
|
+struct cwu50 {
|
||
|
+ struct device *dev;
|
||
|
+ struct drm_panel panel;
|
||
|
+ struct regulator *vci;
|
||
|
+ struct regulator *iovcc;
|
||
|
+ struct gpio_desc *reset_gpio;
|
||
|
+ enum drm_panel_orientation orientation;
|
||
|
+ bool prepared;
|
||
|
+};
|
||
|
+
|
||
|
+static const struct drm_display_mode default_mode = {
|
||
|
+ .clock = 62500,
|
||
|
+
|
||
|
+ .hdisplay = 720,
|
||
|
+ .hsync_start = 720 + 43,
|
||
|
+ .hsync_end = 720 + 43 + 20,
|
||
|
+ .htotal = 720 + 43 + 20 + 20,
|
||
|
+
|
||
|
+ .vdisplay = 1280,
|
||
|
+ .vsync_start = 1280 + 8,
|
||
|
+ .vsync_end = 1280 + 8 + 2,
|
||
|
+ .vtotal = 1280 + 8 + 2 + 16,
|
||
|
+
|
||
|
+ .width_mm = 62,
|
||
|
+ .height_mm = 110,
|
||
|
+ .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
|
||
|
+};
|
||
|
+
|
||
|
+static inline struct cwu50 *panel_to_cwu50(struct drm_panel *panel)
|
||
|
+{
|
||
|
+ return container_of(panel, struct cwu50, panel);
|
||
|
+}
|
||
|
+
|
||
|
+#define dcs_write_seq(seq...) \
|
||
|
+({ \
|
||
|
+ static const u8 d[] = { seq }; \
|
||
|
+ err = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
|
||
|
+ if (err < 0) \
|
||
|
+ return err; \
|
||
|
+})
|
||
|
+
|
||
|
+static int cwu50_init_sequence(struct cwu50 *ctx)
|
||
|
+{
|
||
|
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
||
|
+ int err;
|
||
|
+
|
||
|
+ dcs_write_seq(0xE1,0x93);
|
||
|
+ dcs_write_seq(0xE2,0x65);
|
||
|
+ dcs_write_seq(0xE3,0xF8);
|
||
|
+ dcs_write_seq(0x70,0x20);
|
||
|
+ dcs_write_seq(0x71,0x13);
|
||
|
+ dcs_write_seq(0x72,0x06);
|
||
|
+ dcs_write_seq(0x75,0x03);
|
||
|
+ dcs_write_seq(0xE0,0x01);
|
||
|
+ dcs_write_seq(0x00,0x00);
|
||
|
+ dcs_write_seq(0x01,0x47);//VCOM0x47
|
||
|
+ dcs_write_seq(0x03,0x00);
|
||
|
+ dcs_write_seq(0x04,0x4D);
|
||
|
+ dcs_write_seq(0x0C,0x64);
|
||
|
+ dcs_write_seq(0x17,0x00);
|
||
|
+ dcs_write_seq(0x18,0xBF);
|
||
|
+ dcs_write_seq(0x19,0x00);
|
||
|
+ dcs_write_seq(0x1A,0x00);
|
||
|
+ dcs_write_seq(0x1B,0xBF);
|
||
|
+ dcs_write_seq(0x1C,0x00);
|
||
|
+ dcs_write_seq(0x1F,0x7E);
|
||
|
+ dcs_write_seq(0x20,0x24);
|
||
|
+ dcs_write_seq(0x21,0x24);
|
||
|
+ dcs_write_seq(0x22,0x4E);
|
||
|
+ dcs_write_seq(0x24,0xFE);
|
||
|
+ dcs_write_seq(0x37,0x09);
|
||
|
+ dcs_write_seq(0x38,0x04);
|
||
|
+ dcs_write_seq(0x3C,0x76);
|
||
|
+ dcs_write_seq(0x3D,0xFF);
|
||
|
+ dcs_write_seq(0x3E,0xFF);
|
||
|
+ dcs_write_seq(0x3F,0x7F);
|
||
|
+ dcs_write_seq(0x40,0x04);//Dot inversion type
|
||
|
+ dcs_write_seq(0x41,0xA0);
|
||
|
+ dcs_write_seq(0x44,0x11);
|
||
|
+ dcs_write_seq(0x55,0x02);
|
||
|
+ dcs_write_seq(0x56,0x01);
|
||
|
+ dcs_write_seq(0x57,0x49);
|
||
|
+ dcs_write_seq(0x58,0x09);
|
||
|
+ dcs_write_seq(0x59,0x2A);
|
||
|
+ dcs_write_seq(0x5A,0x1A);
|
||
|
+ dcs_write_seq(0x5B,0x1A);
|
||
|
+ dcs_write_seq(0x5D,0x78);
|
||
|
+ dcs_write_seq(0x5E,0x6E);
|
||
|
+ dcs_write_seq(0x5F,0x66);
|
||
|
+ dcs_write_seq(0x60,0x5E);
|
||
|
+ dcs_write_seq(0x61,0x60);
|
||
|
+ dcs_write_seq(0x62,0x54);
|
||
|
+ dcs_write_seq(0x63,0x5C);
|
||
|
+ dcs_write_seq(0x64,0x47);
|
||
|
+ dcs_write_seq(0x65,0x5F);
|
||
|
+ dcs_write_seq(0x66,0x5D);
|
||
|
+ dcs_write_seq(0x67,0x5B);
|
||
|
+ dcs_write_seq(0x68,0x76);
|
||
|
+ dcs_write_seq(0x69,0x61);
|
||
|
+ dcs_write_seq(0x6A,0x63);
|
||
|
+ dcs_write_seq(0x6B,0x50);
|
||
|
+ dcs_write_seq(0x6C,0x45);
|
||
|
+ dcs_write_seq(0x6D,0x34);
|
||
|
+ dcs_write_seq(0x6E,0x1C);
|
||
|
+ dcs_write_seq(0x6F,0x07);
|
||
|
+ dcs_write_seq(0x70,0x78);
|
||
|
+ dcs_write_seq(0x71,0x6E);
|
||
|
+ dcs_write_seq(0x72,0x66);
|
||
|
+ dcs_write_seq(0x73,0x5E);
|
||
|
+ dcs_write_seq(0x74,0x60);
|
||
|
+ dcs_write_seq(0x75,0x54);
|
||
|
+ dcs_write_seq(0x76,0x5C);
|
||
|
+ dcs_write_seq(0x77,0x47);
|
||
|
+ dcs_write_seq(0x78,0x5F);
|
||
|
+ dcs_write_seq(0x79,0x5D);
|
||
|
+ dcs_write_seq(0x7A,0x5B);
|
||
|
+ dcs_write_seq(0x7B,0x76);
|
||
|
+ dcs_write_seq(0x7C,0x61);
|
||
|
+ dcs_write_seq(0x7D,0x63);
|
||
|
+ dcs_write_seq(0x7E,0x50);
|
||
|
+ dcs_write_seq(0x7F,0x45);
|
||
|
+ dcs_write_seq(0x80,0x34);
|
||
|
+ dcs_write_seq(0x81,0x1C);
|
||
|
+ dcs_write_seq(0x82,0x07);
|
||
|
+ dcs_write_seq(0xE0,0x02);
|
||
|
+ dcs_write_seq(0x00,0x44);
|
||
|
+ dcs_write_seq(0x01,0x46);
|
||
|
+ dcs_write_seq(0x02,0x48);
|
||
|
+ dcs_write_seq(0x03,0x4A);
|
||
|
+ dcs_write_seq(0x04,0x40);
|
||
|
+ dcs_write_seq(0x05,0x42);
|
||
|
+ dcs_write_seq(0x06,0x1F);
|
||
|
+ dcs_write_seq(0x07,0x1F);
|
||
|
+ dcs_write_seq(0x08,0x1F);
|
||
|
+ dcs_write_seq(0x09,0x1F);
|
||
|
+ dcs_write_seq(0x0A,0x1F);
|
||
|
+ dcs_write_seq(0x0B,0x1F);
|
||
|
+ dcs_write_seq(0x0C,0x1F);
|
||
|
+ dcs_write_seq(0x0D,0x1F);
|
||
|
+ dcs_write_seq(0x0E,0x1F);
|
||
|
+ dcs_write_seq(0x0F,0x1F);
|
||
|
+ dcs_write_seq(0x10,0x1F);
|
||
|
+ dcs_write_seq(0x11,0x1F);
|
||
|
+ dcs_write_seq(0x12,0x1F);
|
||
|
+ dcs_write_seq(0x13,0x1F);
|
||
|
+ dcs_write_seq(0x14,0x1E);
|
||
|
+ dcs_write_seq(0x15,0x1F);
|
||
|
+ dcs_write_seq(0x16,0x45);
|
||
|
+ dcs_write_seq(0x17,0x47);
|
||
|
+ dcs_write_seq(0x18,0x49);
|
||
|
+ dcs_write_seq(0x19,0x4B);
|
||
|
+ dcs_write_seq(0x1A,0x41);
|
||
|
+ dcs_write_seq(0x1B,0x43);
|
||
|
+ dcs_write_seq(0x1C,0x1F);
|
||
|
+ dcs_write_seq(0x1D,0x1F);
|
||
|
+ dcs_write_seq(0x1E,0x1F);
|
||
|
+ dcs_write_seq(0x1F,0x1F);
|
||
|
+ dcs_write_seq(0x20,0x1F);
|
||
|
+ dcs_write_seq(0x21,0x1F);
|
||
|
+ dcs_write_seq(0x22,0x1F);
|
||
|
+ dcs_write_seq(0x23,0x1F);
|
||
|
+ dcs_write_seq(0x24,0x1F);
|
||
|
+ dcs_write_seq(0x25,0x1F);
|
||
|
+ dcs_write_seq(0x26,0x1F);
|
||
|
+ dcs_write_seq(0x27,0x1F);
|
||
|
+ dcs_write_seq(0x28,0x1F);
|
||
|
+ dcs_write_seq(0x29,0x1F);
|
||
|
+ dcs_write_seq(0x2A,0x1E);
|
||
|
+ dcs_write_seq(0x2B,0x1F);
|
||
|
+ dcs_write_seq(0x2C,0x0B);
|
||
|
+ dcs_write_seq(0x2D,0x09);
|
||
|
+ dcs_write_seq(0x2E,0x07);
|
||
|
+ dcs_write_seq(0x2F,0x05);
|
||
|
+ dcs_write_seq(0x30,0x03);
|
||
|
+ dcs_write_seq(0x31,0x01);
|
||
|
+ dcs_write_seq(0x32,0x1F);
|
||
|
+ dcs_write_seq(0x33,0x1F);
|
||
|
+ dcs_write_seq(0x34,0x1F);
|
||
|
+ dcs_write_seq(0x35,0x1F);
|
||
|
+ dcs_write_seq(0x36,0x1F);
|
||
|
+ dcs_write_seq(0x37,0x1F);
|
||
|
+ dcs_write_seq(0x38,0x1F);
|
||
|
+ dcs_write_seq(0x39,0x1F);
|
||
|
+ dcs_write_seq(0x3A,0x1F);
|
||
|
+ dcs_write_seq(0x3B,0x1F);
|
||
|
+ dcs_write_seq(0x3C,0x1F);
|
||
|
+ dcs_write_seq(0x3D,0x1F);
|
||
|
+ dcs_write_seq(0x3E,0x1F);
|
||
|
+ dcs_write_seq(0x3F,0x1F);
|
||
|
+ dcs_write_seq(0x40,0x1F);
|
||
|
+ dcs_write_seq(0x41,0x1E);
|
||
|
+ dcs_write_seq(0x42,0x0A);
|
||
|
+ dcs_write_seq(0x43,0x08);
|
||
|
+ dcs_write_seq(0x44,0x06);
|
||
|
+ dcs_write_seq(0x45,0x04);
|
||
|
+ dcs_write_seq(0x46,0x02);
|
||
|
+ dcs_write_seq(0x47,0x00);
|
||
|
+ dcs_write_seq(0x48,0x1F);
|
||
|
+ dcs_write_seq(0x49,0x1F);
|
||
|
+ dcs_write_seq(0x4A,0x1F);
|
||
|
+ dcs_write_seq(0x4B,0x1F);
|
||
|
+ dcs_write_seq(0x4C,0x1F);
|
||
|
+ dcs_write_seq(0x4D,0x1F);
|
||
|
+ dcs_write_seq(0x4E,0x1F);
|
||
|
+ dcs_write_seq(0x4F,0x1F);
|
||
|
+ dcs_write_seq(0x50,0x1F);
|
||
|
+ dcs_write_seq(0x51,0x1F);
|
||
|
+ dcs_write_seq(0x52,0x1F);
|
||
|
+ dcs_write_seq(0x53,0x1F);
|
||
|
+ dcs_write_seq(0x54,0x1F);
|
||
|
+ dcs_write_seq(0x55,0x1F);
|
||
|
+ dcs_write_seq(0x56,0x1F);
|
||
|
+ dcs_write_seq(0x57,0x1E);
|
||
|
+ dcs_write_seq(0x58,0x40);
|
||
|
+ dcs_write_seq(0x59,0x00);
|
||
|
+ dcs_write_seq(0x5A,0x00);
|
||
|
+ dcs_write_seq(0x5B,0x30);
|
||
|
+ dcs_write_seq(0x5C,0x02);
|
||
|
+ dcs_write_seq(0x5D,0x40);
|
||
|
+ dcs_write_seq(0x5E,0x01);
|
||
|
+ dcs_write_seq(0x5F,0x02);
|
||
|
+ dcs_write_seq(0x60,0x00);
|
||
|
+ dcs_write_seq(0x61,0x01);
|
||
|
+ dcs_write_seq(0x62,0x02);
|
||
|
+ dcs_write_seq(0x63,0x65);
|
||
|
+ dcs_write_seq(0x64,0x66);
|
||
|
+ dcs_write_seq(0x65,0x00);
|
||
|
+ dcs_write_seq(0x66,0x00);
|
||
|
+ dcs_write_seq(0x67,0x74);
|
||
|
+ dcs_write_seq(0x68,0x06);
|
||
|
+ dcs_write_seq(0x69,0x65);
|
||
|
+ dcs_write_seq(0x6A,0x66);
|
||
|
+ dcs_write_seq(0x6B,0x10);
|
||
|
+ dcs_write_seq(0x6C,0x00);
|
||
|
+ dcs_write_seq(0x6D,0x04);
|
||
|
+ dcs_write_seq(0x6E,0x04);
|
||
|
+ dcs_write_seq(0x6F,0x88);
|
||
|
+ dcs_write_seq(0x70,0x00);
|
||
|
+ dcs_write_seq(0x71,0x00);
|
||
|
+ dcs_write_seq(0x72,0x06);
|
||
|
+ dcs_write_seq(0x73,0x7B);
|
||
|
+ dcs_write_seq(0x74,0x00);
|
||
|
+ dcs_write_seq(0x75,0x87);
|
||
|
+ dcs_write_seq(0x76,0x00);
|
||
|
+ dcs_write_seq(0x77,0x5D);
|
||
|
+ dcs_write_seq(0x78,0x17);
|
||
|
+ dcs_write_seq(0x79,0x1F);
|
||
|
+ dcs_write_seq(0x7A,0x00);
|
||
|
+ dcs_write_seq(0x7B,0x00);
|
||
|
+ dcs_write_seq(0x7C,0x00);
|
||
|
+ dcs_write_seq(0x7D,0x03);
|
||
|
+ dcs_write_seq(0x7E,0x7B);
|
||
|
+ dcs_write_seq(0xE0,0x04);
|
||
|
+ dcs_write_seq(0x09,0x10);
|
||
|
+ dcs_write_seq(0xE0,0x00);
|
||
|
+ dcs_write_seq(0xE6,0x02);
|
||
|
+ dcs_write_seq(0xE7,0x02);
|
||
|
+ // dcs_write_seq(0x11);// SLPOUT
|
||
|
+ // msleep (120);
|
||
|
+ // dcs_write_seq(0x29);// DSPON
|
||
|
+ // msleep (20);
|
||
|
+ // dcs_write_seq(0x35,0x00);// TE
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int cwu50_unprepare(struct drm_panel *panel)
|
||
|
+{
|
||
|
+ struct cwu50 *ctx = panel_to_cwu50(panel);
|
||
|
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
||
|
+ int err;
|
||
|
+
|
||
|
+ if (!ctx->prepared)
|
||
|
+ return 0;
|
||
|
+
|
||
|
+ /* Power off the display using case 1 described in JD9365D.pdf chapter 9.5.3.
|
||
|
+ * module's default behaviour
|
||
|
+ */
|
||
|
+ if (1 == power_off_case) {
|
||
|
+ goto power_off_case1;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Power off the display using case 2 described in JD9365D.pdf chapter 9.5.3. */
|
||
|
+
|
||
|
+ /* tCMD_OFF >= 1ms */
|
||
|
+ msleep(1);
|
||
|
+
|
||
|
+ err = mipi_dsi_dcs_set_display_off(dsi);
|
||
|
+ if (err) {
|
||
|
+ dev_warn(ctx->dev, "failed to send display off command (%d)\n", err);
|
||
|
+ goto fallback_case1;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* tDISOFF >= 50ms */
|
||
|
+ msleep(50);
|
||
|
+
|
||
|
+
|
||
|
+ err = mipi_dsi_dcs_enter_sleep_mode(dsi);
|
||
|
+ if (err) {
|
||
|
+ dev_warn(ctx->dev, "failed to enter sleep mode (%d)\n", err);
|
||
|
+ goto fallback_case1;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* tSLPIN >= 100ms */
|
||
|
+ msleep(100);
|
||
|
+
|
||
|
+
|
||
|
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1); /* assert reset */
|
||
|
+
|
||
|
+ goto disable_regulators;
|
||
|
+
|
||
|
+fallback_case1:
|
||
|
+ /* in case of error, fall back to case 1 */
|
||
|
+ dev_warn(ctx->dev, "falling back to power off case 1 using HW reset line");
|
||
|
+power_off_case1:
|
||
|
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1); /* assert reset */
|
||
|
+ /* tRSTOFF1 >= 120ms */
|
||
|
+ msleep(120);
|
||
|
+
|
||
|
+disable_regulators:
|
||
|
+ regulator_disable(ctx->vci);
|
||
|
+ regulator_disable(ctx->iovcc);
|
||
|
+
|
||
|
+ ctx->prepared = false;
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int cwu50_prepare(struct drm_panel *panel)
|
||
|
+{
|
||
|
+ struct cwu50 *ctx = panel_to_cwu50(panel);
|
||
|
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
||
|
+ int err;
|
||
|
+ u8 response;
|
||
|
+
|
||
|
+ if (ctx->prepared)
|
||
|
+ return 0;
|
||
|
+
|
||
|
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1); /* ensure asserted state */
|
||
|
+
|
||
|
+ /* IOVCC first, then VCI */
|
||
|
+ err = regulator_enable(ctx->iovcc);
|
||
|
+ if (err) {
|
||
|
+ dev_err(ctx->dev, "failed to enable iovcc (%d)\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* tPWON>= 0ms */
|
||
|
+
|
||
|
+ err = regulator_enable(ctx->vci);
|
||
|
+ if (err) {
|
||
|
+ dev_err(ctx->dev, "failed to enable vci (%d)\n", err);
|
||
|
+ goto disable_iovcc;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* MIPI should be LP-11 now */
|
||
|
+ /* tRPWIRES >= 5ms */
|
||
|
+ msleep(10);
|
||
|
+
|
||
|
+ /* tRESETL=10us */
|
||
|
+ /* tRESETH >= 5ms */
|
||
|
+ gpiod_set_value_cansleep(ctx->reset_gpio, 0); /* deassert */
|
||
|
+ msleep(10);
|
||
|
+
|
||
|
+ /* Exit sleep mode and power on */
|
||
|
+
|
||
|
+ err = cwu50_init_sequence(ctx);
|
||
|
+ if (err) {
|
||
|
+ dev_err(ctx->dev, "failed to send initialize sequence (%d)\n", err);
|
||
|
+ goto disable_vci;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* slpout */
|
||
|
+ err = mipi_dsi_dcs_exit_sleep_mode(dsi);
|
||
|
+ if (err) {
|
||
|
+ dev_err(ctx->dev, "failed to exit sleep mode (%d)\n", err);
|
||
|
+ goto disable_vci;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* tSLPOUT 120ms */
|
||
|
+ msleep(120);
|
||
|
+
|
||
|
+ err = mipi_dsi_dcs_set_display_on(dsi);
|
||
|
+ if (err) {
|
||
|
+ dev_err(ctx->dev, "failed to turn display on (%d)\n", err);
|
||
|
+ goto disable_vci;
|
||
|
+ }
|
||
|
+ msleep(20);
|
||
|
+
|
||
|
+ /* Enabe tearing mode: send TE (tearing effect) at VBLANK */
|
||
|
+ /* JD9365D seems need a parameter for this command */
|
||
|
+ err = mipi_dsi_dcs_write_buffer(dsi, (u8[]){ 0x35, 0x00 }, 2);
|
||
|
+ // err = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
|
||
|
+ if (err < 0) {
|
||
|
+ dev_err(ctx->dev, "failed to enable vblank TE (%d)\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+
|
||
|
+ err = mipi_dsi_dcs_get_power_mode(dsi, &response);
|
||
|
+ if (!err) {
|
||
|
+ /* debug, normally the command will fail */
|
||
|
+ dev_info(ctx->dev, "Read display power mode got: %d", response);
|
||
|
+ }
|
||
|
+
|
||
|
+ ctx->prepared = true;
|
||
|
+
|
||
|
+ return 0;
|
||
|
+disable_vci:
|
||
|
+ regulator_disable(ctx->vci);
|
||
|
+disable_iovcc:
|
||
|
+ regulator_disable(ctx->iovcc);
|
||
|
+ return err;
|
||
|
+}
|
||
|
+
|
||
|
+static int cwu50_get_modes(struct drm_panel *panel, struct drm_connector *connector)
|
||
|
+{
|
||
|
+ struct cwu50 *ctx = panel_to_cwu50(panel);
|
||
|
+ struct drm_display_mode *mode;
|
||
|
+
|
||
|
+ mode = drm_mode_duplicate(connector->dev, &default_mode);
|
||
|
+ if (!mode) {
|
||
|
+ dev_err(panel->dev, "bad mode or failed to add mode\n");
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+ drm_mode_set_name(mode);
|
||
|
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
|
||
|
+
|
||
|
+ /* set up connector's "panel orientation" property */
|
||
|
+ /*
|
||
|
+ * TODO: Remove once all drm drivers call
|
||
|
+ * drm_connector_set_orientation_from_panel()
|
||
|
+ */
|
||
|
+ drm_connector_set_panel_orientation(connector, ctx->orientation);
|
||
|
+
|
||
|
+ drm_mode_probed_add(connector, mode);
|
||
|
+
|
||
|
+ return 1; /* Number of modes */
|
||
|
+}
|
||
|
+
|
||
|
+static enum drm_panel_orientation cwu50_get_orientation(struct drm_panel *panel)
|
||
|
+{
|
||
|
+ struct cwu50 *ctx = panel_to_cwu50(panel);
|
||
|
+
|
||
|
+ return ctx->orientation;
|
||
|
+}
|
||
|
+
|
||
|
+static const struct drm_panel_funcs cwu50_drm_funcs = {
|
||
|
+ .unprepare = cwu50_unprepare,
|
||
|
+ .prepare = cwu50_prepare,
|
||
|
+ .get_modes = cwu50_get_modes,
|
||
|
+ .get_orientation = cwu50_get_orientation,
|
||
|
+};
|
||
|
+
|
||
|
+static int cwu50_probe(struct mipi_dsi_device *dsi)
|
||
|
+{
|
||
|
+ struct device *dev = &dsi->dev;
|
||
|
+ struct cwu50 *ctx;
|
||
|
+ int err;
|
||
|
+
|
||
|
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
|
||
|
+ if (!ctx)
|
||
|
+ return -ENOMEM;
|
||
|
+
|
||
|
+ mipi_dsi_set_drvdata(dsi, ctx);
|
||
|
+ ctx->dev = dev;
|
||
|
+
|
||
|
+ dsi->lanes = 4;
|
||
|
+ dsi->format = MIPI_DSI_FMT_RGB888;
|
||
|
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
|
||
|
+ MIPI_DSI_MODE_VIDEO_BURST |
|
||
|
+ MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
|
||
|
+
|
||
|
+ ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
|
||
|
+ if (IS_ERR(ctx->reset_gpio)) {
|
||
|
+ err = PTR_ERR(ctx->reset_gpio);
|
||
|
+ return dev_err_probe(dev, err, "Failed to request GPIO (%d)\n", err);
|
||
|
+ }
|
||
|
+
|
||
|
+ ctx->vci = devm_regulator_get(dev, "vci");
|
||
|
+ if (IS_ERR(ctx->vci)) {
|
||
|
+ err = PTR_ERR(ctx->vci);
|
||
|
+ return dev_err_probe(dev, err, "Failed to request vci regulator: %d\n", err);
|
||
|
+ }
|
||
|
+
|
||
|
+ ctx->iovcc = devm_regulator_get(dev, "iovcc");
|
||
|
+ if (IS_ERR(ctx->iovcc)) {
|
||
|
+ err = PTR_ERR(ctx->iovcc);
|
||
|
+ return dev_err_probe(dev, err, "Failed to request iovcc regulator: %d\n", err);
|
||
|
+ }
|
||
|
+
|
||
|
+ err = of_drm_get_panel_orientation(dev->of_node, &ctx->orientation);
|
||
|
+ if (err) {
|
||
|
+ dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* NOTE: this is only available on RPi's fork for the moment
|
||
|
+ * Maybe need to move part of the init sequence to cwu50_enable() instead of
|
||
|
+ * keeping them in cwu50_prepare().
|
||
|
+ */
|
||
|
+ ctx->panel.prepare_upstream_first = true;
|
||
|
+
|
||
|
+ drm_panel_init(&ctx->panel, dev, &cwu50_drm_funcs, DRM_MODE_CONNECTOR_DSI);
|
||
|
+
|
||
|
+ err = drm_panel_of_backlight(&ctx->panel);
|
||
|
+ if (err)
|
||
|
+ return dev_err_probe(dev, err, "Failed to get backlight\n");
|
||
|
+
|
||
|
+ drm_panel_add(&ctx->panel);
|
||
|
+
|
||
|
+ err = mipi_dsi_attach(dsi);
|
||
|
+ if (err < 0) {
|
||
|
+ dev_err(dev, "mipi_dsi_attach() failed: %d\n", err);
|
||
|
+ drm_panel_remove(&ctx->panel);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static void cwu50_remove(struct mipi_dsi_device *dsi)
|
||
|
+{
|
||
|
+ struct cwu50 *ctx = mipi_dsi_get_drvdata(dsi);
|
||
|
+
|
||
|
+ mipi_dsi_detach(dsi);
|
||
|
+ drm_panel_remove(&ctx->panel);
|
||
|
+}
|
||
|
+
|
||
|
+static const struct of_device_id cwu50_of_match[] = {
|
||
|
+ { .compatible = "clockwork,cwu50" },
|
||
|
+ { /* sentinel */ }
|
||
|
+};
|
||
|
+MODULE_DEVICE_TABLE(of, cwu50_of_match);
|
||
|
+
|
||
|
+static struct mipi_dsi_driver cwu50_driver = {
|
||
|
+ .probe = cwu50_probe,
|
||
|
+ .remove = cwu50_remove,
|
||
|
+ .driver = {
|
||
|
+ .name = "panel-clockwork-cwu50",
|
||
|
+ .of_match_table = cwu50_of_match,
|
||
|
+ },
|
||
|
+};
|
||
|
+module_mipi_dsi_driver(cwu50_driver);
|
||
|
+
|
||
|
+MODULE_DESCRIPTION("ClockworkPi CWU50 panel driver");
|
||
|
+MODULE_LICENSE("GPL v2");
|
||
|
--
|
||
|
2.43.0
|
||
|
|