forked from Minki/linux
drm/panel: add support for rm69299 visionox panel
Add support for Visionox rm69299 panel. Signed-off-by: Harigovindan P <harigovi@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> [fix checkpatch warnings, added sentinel ] Link: https://patchwork.freedesktop.org/patch/msgid/20200421045508.21137-2-harigovi@codeaurora.org
This commit is contained in:
Harigovindan P
Sam Ravnborg
parent
10a14c3224
commit
c7f66d32dd
@ -444,6 +444,14 @@ config DRM_PANEL_TRULY_NT35597_WQXGA
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Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
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Video Mode panel
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config DRM_PANEL_VISIONOX_RM69299
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tristate "Visionox RM69299"
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depends on OF
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depends on DRM_MIPI_DSI
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help
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Say Y here if you want to enable support for Visionox
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RM69299 DSI Video Mode panel.
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config DRM_PANEL_XINPENG_XPP055C272
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tristate "Xinpeng XPP055C272 panel driver"
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depends on OF
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@ -47,4 +47,5 @@ obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
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obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
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obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
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obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o
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obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o
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obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o
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302
drivers/gpu/drm/panel/panel-visionox-rm69299.c
Normal file
302
drivers/gpu/drm/panel/panel-visionox-rm69299.c
Normal file
@ -0,0 +1,302 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019, The Linux Foundation. All rights reserved.
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*/
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/gpio/consumer.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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#include <drm/drm_print.h>
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struct visionox_rm69299 {
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struct drm_panel panel;
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struct regulator_bulk_data supplies[2];
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struct gpio_desc *reset_gpio;
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struct mipi_dsi_device *dsi;
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bool prepared;
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bool enabled;
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};
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static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel)
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{
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return container_of(panel, struct visionox_rm69299, panel);
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}
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static int visionox_rm69299_power_on(struct visionox_rm69299 *ctx)
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{
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int ret;
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ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
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if (ret < 0)
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return ret;
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/*
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* Reset sequence of visionox panel requires the panel to be
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* out of reset for 10ms, followed by being held in reset
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* for 10ms and then out again
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*/
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gpiod_set_value(ctx->reset_gpio, 1);
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usleep_range(10000, 20000);
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gpiod_set_value(ctx->reset_gpio, 0);
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usleep_range(10000, 20000);
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gpiod_set_value(ctx->reset_gpio, 1);
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usleep_range(10000, 20000);
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return 0;
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}
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static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx)
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{
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gpiod_set_value(ctx->reset_gpio, 0);
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return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
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}
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static int visionox_rm69299_unprepare(struct drm_panel *panel)
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{
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struct visionox_rm69299 *ctx = panel_to_ctx(panel);
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int ret;
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ctx->dsi->mode_flags = 0;
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ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_OFF, NULL, 0);
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if (ret < 0)
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DRM_DEV_ERROR(ctx->panel.dev,
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"set_display_off cmd failed ret = %d\n", ret);
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/* 120ms delay required here as per DCS spec */
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msleep(120);
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ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_ENTER_SLEEP_MODE, NULL, 0);
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if (ret < 0) {
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DRM_DEV_ERROR(ctx->panel.dev,
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"enter_sleep cmd failed ret = %d\n", ret);
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}
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ret = visionox_rm69299_power_off(ctx);
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ctx->prepared = false;
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return ret;
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}
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static int visionox_rm69299_prepare(struct drm_panel *panel)
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{
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struct visionox_rm69299 *ctx = panel_to_ctx(panel);
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int ret;
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if (ctx->prepared)
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return 0;
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ret = visionox_rm69299_power_on(ctx);
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if (ret < 0)
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return ret;
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ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xfe, 0x00 }, 2);
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if (ret < 0) {
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DRM_DEV_ERROR(ctx->panel.dev,
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"cmd set tx 0 failed, ret = %d\n", ret);
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goto power_off;
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}
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ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xc2, 0x08 }, 2);
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if (ret < 0) {
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DRM_DEV_ERROR(ctx->panel.dev,
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"cmd set tx 1 failed, ret = %d\n", ret);
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goto power_off;
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}
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ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x35, 0x00 }, 2);
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if (ret < 0) {
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DRM_DEV_ERROR(ctx->panel.dev,
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"cmd set tx 2 failed, ret = %d\n", ret);
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goto power_off;
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}
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ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x51, 0xff }, 2);
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if (ret < 0) {
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DRM_DEV_ERROR(ctx->panel.dev,
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"cmd set tx 3 failed, ret = %d\n", ret);
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goto power_off;
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}
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ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0);
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if (ret < 0) {
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DRM_DEV_ERROR(ctx->panel.dev,
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"exit_sleep_mode cmd failed ret = %d\n", ret);
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goto power_off;
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}
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/* Per DSI spec wait 120ms after sending exit sleep DCS command */
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msleep(120);
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ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_ON, NULL, 0);
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if (ret < 0) {
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DRM_DEV_ERROR(ctx->panel.dev,
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"set_display_on cmd failed ret = %d\n", ret);
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goto power_off;
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}
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/* Per DSI spec wait 120ms after sending set_display_on DCS command */
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msleep(120);
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ctx->prepared = true;
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return 0;
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power_off:
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return ret;
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}
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static const struct drm_display_mode visionox_rm69299_1080x2248_60hz = {
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.name = "1080x2248",
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.clock = 158695,
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.hdisplay = 1080,
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.hsync_start = 1080 + 26,
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.hsync_end = 1080 + 26 + 2,
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.htotal = 1080 + 26 + 2 + 36,
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.vdisplay = 2248,
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.vsync_start = 2248 + 56,
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.vsync_end = 2248 + 56 + 4,
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.vtotal = 2248 + 56 + 4 + 4,
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.vrefresh = 60,
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.flags = 0,
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};
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static int visionox_rm69299_get_modes(struct drm_panel *panel,
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struct drm_connector *connector)
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{
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struct visionox_rm69299 *ctx = panel_to_ctx(panel);
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struct drm_display_mode *mode;
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mode = drm_mode_create(connector->dev);
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if (!mode) {
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DRM_DEV_ERROR(ctx->panel.dev,
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"failed to create a new display mode\n");
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return 0;
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}
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connector->display_info.width_mm = 74;
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connector->display_info.height_mm = 131;
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drm_mode_copy(mode, &visionox_rm69299_1080x2248_60hz);
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mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
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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 visionox_rm69299_drm_funcs = {
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.unprepare = visionox_rm69299_unprepare,
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.prepare = visionox_rm69299_prepare,
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.get_modes = visionox_rm69299_get_modes,
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};
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static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
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{
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struct device *dev = &dsi->dev;
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struct visionox_rm69299 *ctx;
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int ret;
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ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
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if (!ctx)
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return -ENOMEM;
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mipi_dsi_set_drvdata(dsi, ctx);
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ctx->panel.dev = dev;
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ctx->dsi = dsi;
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ctx->supplies[0].supply = "vdda";
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ctx->supplies[1].supply = "vdd3p3";
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ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies),
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ctx->supplies);
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if (ret < 0)
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return ret;
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ctx->reset_gpio = devm_gpiod_get(ctx->panel.dev,
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"reset", GPIOD_OUT_LOW);
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if (IS_ERR(ctx->reset_gpio)) {
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DRM_DEV_ERROR(dev, "cannot get reset gpio %ld\n",
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PTR_ERR(ctx->reset_gpio));
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return PTR_ERR(ctx->reset_gpio);
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}
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drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs,
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DRM_MODE_CONNECTOR_DSI);
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ctx->panel.dev = dev;
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ctx->panel.funcs = &visionox_rm69299_drm_funcs;
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drm_panel_add(&ctx->panel);
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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_LPM |
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MIPI_DSI_CLOCK_NON_CONTINUOUS;
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ret = mipi_dsi_attach(dsi);
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if (ret < 0) {
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DRM_DEV_ERROR(dev, "dsi attach failed ret = %d\n", ret);
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goto err_dsi_attach;
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}
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ret = regulator_set_load(ctx->supplies[0].consumer, 32000);
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if (ret) {
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DRM_DEV_ERROR(dev,
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"regulator set load failed for vdda supply ret = %d\n",
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ret);
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goto err_set_load;
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}
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ret = regulator_set_load(ctx->supplies[1].consumer, 13200);
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if (ret) {
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DRM_DEV_ERROR(dev,
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"regulator set load failed for vdd3p3 supply ret = %d\n",
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ret);
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goto err_set_load;
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}
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return 0;
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err_set_load:
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mipi_dsi_detach(dsi);
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err_dsi_attach:
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drm_panel_remove(&ctx->panel);
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return ret;
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}
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static int visionox_rm69299_remove(struct mipi_dsi_device *dsi)
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{
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struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi);
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mipi_dsi_detach(ctx->dsi);
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mipi_dsi_device_unregister(ctx->dsi);
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drm_panel_remove(&ctx->panel);
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return 0;
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}
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static const struct of_device_id visionox_rm69299_of_match[] = {
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{ .compatible = "visionox,rm69299-1080p-display", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, visionox_rm69299_of_match);
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static struct mipi_dsi_driver visionox_rm69299_driver = {
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.driver = {
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.name = "panel-visionox-rm69299",
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.of_match_table = visionox_rm69299_of_match,
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},
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.probe = visionox_rm69299_probe,
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.remove = visionox_rm69299_remove,
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};
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module_mipi_dsi_driver(visionox_rm69299_driver);
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MODULE_DESCRIPTION("Visionox RM69299 DSI Panel Driver");
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