[PATCH RFC 06/10] drm/panel/samsung-sofef01: Add panel driver for Sony Xperia 5 / 10 II
Marijn Suijten
marijn.suijten at somainline.org
Sun May 21 21:23:08 UTC 2023
This SOFEF01-M Display-IC driver supports two modes with different
compatibles to differentiate between slightly different physical sizes
(panels) found on the Xperia 5 (6.1") and 10 II (6.0").
It is currently also used to hardcode significantly higher fake porches
for the Xperia 5, which are unused in transfers due to this being a
command-mode panel but do have an effect on the clock rates set by
dsi_host.c. Without higher clock rates this panel fails to achieve
60fps and has significant tearing artifacts, while the same calculated
clock rate works perfectly fine on the Xperia 10 II.
Signed-off-by: Marijn Suijten <marijn.suijten at somainline.org>
---
drivers/gpu/drm/panel/Kconfig | 12 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-samsung-sofef01.c | 360 ++++++++++++++++++++++++++
3 files changed, 373 insertions(+)
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 18bd116e78a71..3f11e9906f2cb 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -618,6 +618,18 @@ config DRM_PANEL_SAMSUNG_SOFEF00
The panels are 2280x1080 at 60Hz and 2340x1080 at 60Hz respectively
+config DRM_PANEL_SAMSUNG_SOFEF01
+ tristate "Samsung sofef01 Sony Xperia 5 / 10 II DSI cmd mode panels"
+ depends on GPIOLIB
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y or M here if you want to enable support for the Samsung AMOLED
+ command mode panels found in the Sony Xperia 5 / 10 II smartphones.
+
+ This panel features a fixed mode of 1080x2520 at 60.
+
config DRM_PANEL_SEIKO_43WVF1G
tristate "Seiko 43WVF1G panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 85133f73558f3..a4039d0fc9cfb 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63M0_DSI) += panel-samsung-s6e63m0-dsi.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01) += panel-samsung-s6e88a0-ams452ef01.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_SOFEF00) += panel-samsung-sofef00.o
+obj-$(CONFIG_DRM_PANEL_SAMSUNG_SOFEF01) += panel-samsung-sofef01.o
obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o
obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o
obj-$(CONFIG_DRM_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
diff --git a/drivers/gpu/drm/panel/panel-samsung-sofef01.c b/drivers/gpu/drm/panel/panel-samsung-sofef01.c
new file mode 100644
index 0000000000000..18dc67a301a7b
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-samsung-sofef01.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2023 Marijn Suijten <marijn.suijten at somainline.org>
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_probe_helper.h>
+
+struct samsung_sofef01_m {
+ struct drm_panel panel;
+ struct mipi_dsi_device *dsi;
+ struct regulator *vddio, *vci;
+ struct gpio_desc *reset_gpio;
+ const struct drm_display_mode *mode;
+ bool prepared;
+};
+
+static inline struct samsung_sofef01_m *to_samsung_sofef01_m(struct drm_panel *panel)
+{
+ return container_of(panel, struct samsung_sofef01_m, panel);
+}
+
+static void samsung_sofef01_m_reset(struct samsung_sofef01_m *ctx)
+{
+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+ usleep_range(10000, 11000);
+}
+
+static int samsung_sofef01_m_on(struct samsung_sofef01_m *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
+ return ret;
+ }
+ usleep_range(10000, 11000);
+
+ ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set tear on: %d\n", ret);
+ return ret;
+ }
+
+ mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a);
+ mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x03);
+ mipi_dsi_dcs_write_seq(dsi, 0xe0, 0x01);
+ mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5);
+
+ ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 2520 - 1);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set page address: %d\n", ret);
+ return ret;
+ }
+
+ mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
+ mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00);
+ mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a);
+ mipi_dsi_dcs_write_seq(dsi, 0xbe, 0x92, 0x29);
+ mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5);
+ mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a);
+ mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x06);
+ mipi_dsi_dcs_write_seq(dsi, 0xb6, 0x90);
+ mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5);
+ msleep(110);
+
+ ret = mipi_dsi_dcs_set_display_on(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to turn display on: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int samsung_sofef01_m_off(struct samsung_sofef01_m *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_display_off(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to turn display off: %d\n", ret);
+ return ret;
+ }
+ msleep(20);
+
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+ return ret;
+ }
+ msleep(120);
+
+ return 0;
+}
+
+static int samsung_sofef01_m_prepare(struct drm_panel *panel)
+{
+ struct samsung_sofef01_m *ctx = to_samsung_sofef01_m(panel);
+ struct device *dev = &ctx->dsi->dev;
+ int ret;
+
+ if (ctx->prepared)
+ return 0;
+
+ ret = regulator_enable(ctx->vddio);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable vddio regulator: %d\n", ret);
+ return ret;
+ }
+
+ ret = regulator_enable(ctx->vci);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable vci regulator: %d\n", ret);
+ regulator_disable(ctx->vddio);
+ return ret;
+ }
+
+ samsung_sofef01_m_reset(ctx);
+
+ ret = samsung_sofef01_m_on(ctx);
+ if (ret < 0) {
+ dev_err(dev, "Failed to initialize panel: %d\n", ret);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ regulator_disable(ctx->vci);
+ regulator_disable(ctx->vddio);
+ return ret;
+ }
+
+ ctx->prepared = true;
+ return 0;
+}
+
+static int samsung_sofef01_m_unprepare(struct drm_panel *panel)
+{
+ struct samsung_sofef01_m *ctx = to_samsung_sofef01_m(panel);
+ struct device *dev = &ctx->dsi->dev;
+ int ret;
+
+ if (!ctx->prepared)
+ return 0;
+
+ ret = samsung_sofef01_m_off(ctx);
+ if (ret < 0)
+ dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
+
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ regulator_disable(ctx->vci);
+ regulator_disable(ctx->vddio);
+
+ ctx->prepared = false;
+ return 0;
+}
+
+static int samsung_sofef01_m_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct samsung_sofef01_m *ctx = to_samsung_sofef01_m(panel);
+
+ return drm_connector_helper_get_modes_fixed(connector, ctx->mode);
+}
+
+static const struct drm_panel_funcs samsung_sofef01_m_panel_funcs = {
+ .prepare = samsung_sofef01_m_prepare,
+ .unprepare = samsung_sofef01_m_unprepare,
+ .get_modes = samsung_sofef01_m_get_modes,
+};
+
+static int samsung_sofef01_m_bl_update_status(struct backlight_device *bl)
+{
+ struct mipi_dsi_device *dsi = bl_get_data(bl);
+ u16 brightness = backlight_get_brightness(bl);
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
+ if (ret < 0)
+ return ret;
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ return 0;
+}
+
+static int samsung_sofef01_m_bl_get_brightness(struct backlight_device *bl)
+{
+ struct mipi_dsi_device *dsi = bl_get_data(bl);
+ u16 brightness;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness);
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ if (ret < 0)
+ return ret;
+
+ return brightness;
+}
+
+static const struct backlight_ops samsung_sofef01_m_bl_ops = {
+ .update_status = samsung_sofef01_m_bl_update_status,
+ .get_brightness = samsung_sofef01_m_bl_get_brightness,
+};
+
+static struct backlight_device *
+samsung_sofef01_m_create_backlight(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ const struct backlight_properties props = {
+ .type = BACKLIGHT_RAW,
+ .brightness = 100,
+ .max_brightness = 1023,
+ };
+
+ return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
+ &samsung_sofef01_m_bl_ops, &props);
+}
+
+static int samsung_sofef01_m_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct samsung_sofef01_m *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->vddio = devm_regulator_get(dev, "vddio");
+ if (IS_ERR(ctx->vddio))
+ return dev_err_probe(dev, PTR_ERR(ctx->vddio),
+ "Failed to get vddio regulator\n");
+
+ ctx->vci = devm_regulator_get(dev, "vci");
+ if (IS_ERR(ctx->vci))
+ return dev_err_probe(dev, PTR_ERR(ctx->vci),
+ "Failed to get vci regulator\n");
+
+ ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(ctx->reset_gpio))
+ return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
+ "Failed to get reset-gpios\n");
+
+ ctx->dsi = dsi;
+ ctx->mode = of_device_get_match_data(dev);
+ mipi_dsi_set_drvdata(dsi, ctx);
+
+ dsi->lanes = 4;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+ drm_panel_init(&ctx->panel, dev, &samsung_sofef01_m_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+
+ ctx->panel.backlight = samsung_sofef01_m_create_backlight(dsi);
+ if (IS_ERR(ctx->panel.backlight))
+ return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
+ "Failed to create backlight\n");
+
+ drm_panel_add(&ctx->panel);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
+ drm_panel_remove(&ctx->panel);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void samsung_sofef01_m_remove(struct mipi_dsi_device *dsi)
+{
+ struct samsung_sofef01_m *ctx = mipi_dsi_get_drvdata(dsi);
+ int ret;
+
+ ret = mipi_dsi_detach(dsi);
+ if (ret < 0)
+ dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
+
+ drm_panel_remove(&ctx->panel);
+}
+
+/* Sony Xperia 5 (kumano bahamut) */
+static const struct drm_display_mode samsung_sofef01_m_bahamut_mode = {
+ /*
+ * WARNING: These massive porches are wrong/useless for CMDmode
+ * (and not defined in downstream DTS) but necessary to bump dsi
+ * clocks higher, so that we can achieve proper 60fps without tearing.
+ */
+ .clock = (1080 + 156 + 8 + 8) * (2520 + 2393 + 8 + 8) * 60 / 1000,
+ .hdisplay = 1080,
+ .hsync_start = 1080 + 156,
+ .hsync_end = 1080 + 156 + 8,
+ .htotal = 1080 + 156 + 8 + 8,
+ .vdisplay = 2520,
+ .vsync_start = 2520 + 2393,
+ .vsync_end = 2520 + 2393 + 8,
+ .vtotal = 2520 + 2393 + 8 + 8,
+ .width_mm = 61,
+ .height_mm = 142,
+};
+
+/* Sony Xperia 10 II (seine pdx201) */
+static const struct drm_display_mode samsung_sofef01_m_pdx201_mode = {
+ .clock = (1080 + 8 + 8 + 8) * (2520 + 8 + 8 + 8) * 60 / 1000,
+ .hdisplay = 1080,
+ .hsync_start = 1080 + 8,
+ .hsync_end = 1080 + 8 + 8,
+ .htotal = 1080 + 8 + 8 + 8,
+ .vdisplay = 2520,
+ .vsync_start = 2520 + 8,
+ .vsync_end = 2520 + 8 + 8,
+ .vtotal = 2520 + 8 + 8 + 8,
+ .width_mm = 60,
+ .height_mm = 139,
+};
+
+static const struct of_device_id samsung_sofef01_m_of_match[] = {
+ { .compatible = "samsung,sofef01-m-bahamut", .data = &samsung_sofef01_m_bahamut_mode },
+ { .compatible = "samsung,sofef01-m-pdx201", .data = &samsung_sofef01_m_pdx201_mode },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, samsung_sofef01_m_of_match);
+
+static struct mipi_dsi_driver samsung_sofef01_m_driver = {
+ .probe = samsung_sofef01_m_probe,
+ .remove = samsung_sofef01_m_remove,
+ .driver = {
+ .name = "panel-samsung-sofef01-m",
+ .of_match_table = samsung_sofef01_m_of_match,
+ },
+};
+module_mipi_dsi_driver(samsung_sofef01_m_driver);
+
+MODULE_AUTHOR("Marijn Suijten <marijn.suijten at somainline.org>");
+MODULE_DESCRIPTION("DRM panel driver for Samsung SOFEF01-M Display-IC panels");
+MODULE_LICENSE("GPL");
--
2.40.1
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