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-rw-r--r--Documentation/devicetree/bindings/panel/auo,b133htn01.txt7
-rw-r--r--Documentation/devicetree/bindings/panel/foxlink,fl500wvr00-a0t.txt7
-rw-r--r--Documentation/devicetree/bindings/panel/innolux,n116bge.txt7
-rw-r--r--Documentation/devicetree/bindings/panel/innolux,n156bge-l21.txt7
-rw-r--r--drivers/gpu/drm/drm_mipi_dsi.c14
-rw-r--r--drivers/gpu/drm/exynos/Kconfig1
-rw-r--r--drivers/gpu/drm/exynos/exynos_dp_core.c112
-rw-r--r--drivers/gpu/drm/exynos/exynos_dp_core.h3
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_dpi.c8
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_dsi.c13
-rw-r--r--drivers/gpu/drm/panel/Kconfig7
-rw-r--r--drivers/gpu/drm/panel/panel-ld9040.c21
-rw-r--r--drivers/gpu/drm/panel/panel-s6e8aa0.c29
-rw-r--r--drivers/gpu/drm/panel/panel-simple.c203
-rw-r--r--drivers/gpu/drm/tegra/output.c2
-rw-r--r--include/drm/drm_mipi_dsi.h21
-rw-r--r--include/drm/drm_panel.h58
17 files changed, 447 insertions, 73 deletions
diff --git a/Documentation/devicetree/bindings/panel/auo,b133htn01.txt b/Documentation/devicetree/bindings/panel/auo,b133htn01.txt
new file mode 100644
index 00000000000..302226b5bb5
--- /dev/null
+++ b/Documentation/devicetree/bindings/panel/auo,b133htn01.txt
@@ -0,0 +1,7 @@
+AU Optronics Corporation 13.3" FHD (1920x1080) color TFT-LCD panel
+
+Required properties:
+- compatible: should be "auo,b133htn01"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/panel/foxlink,fl500wvr00-a0t.txt b/Documentation/devicetree/bindings/panel/foxlink,fl500wvr00-a0t.txt
new file mode 100644
index 00000000000..b47f9d87bc1
--- /dev/null
+++ b/Documentation/devicetree/bindings/panel/foxlink,fl500wvr00-a0t.txt
@@ -0,0 +1,7 @@
+Foxlink Group 5" WVGA TFT LCD panel
+
+Required properties:
+- compatible: should be "foxlink,fl500wvr00-a0t"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/panel/innolux,n116bge.txt b/Documentation/devicetree/bindings/panel/innolux,n116bge.txt
new file mode 100644
index 00000000000..081bb939ed3
--- /dev/null
+++ b/Documentation/devicetree/bindings/panel/innolux,n116bge.txt
@@ -0,0 +1,7 @@
+Innolux Corporation 11.6" WXGA (1366x768) TFT LCD panel
+
+Required properties:
+- compatible: should be "innolux,n116bge"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/panel/innolux,n156bge-l21.txt b/Documentation/devicetree/bindings/panel/innolux,n156bge-l21.txt
new file mode 100644
index 00000000000..7825844aafd
--- /dev/null
+++ b/Documentation/devicetree/bindings/panel/innolux,n156bge-l21.txt
@@ -0,0 +1,7 @@
+InnoLux 15.6" WXGA TFT LCD panel
+
+Required properties:
+- compatible: should be "innolux,n156bge-l21"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index e633df2f68d..6aa6a9e9557 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -201,16 +201,15 @@ EXPORT_SYMBOL(mipi_dsi_detach);
/**
* mipi_dsi_dcs_write - send DCS write command
* @dsi: DSI device
- * @channel: virtual channel
* @data: pointer to the command followed by parameters
* @len: length of @data
*/
-int mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, unsigned int channel,
- const void *data, size_t len)
+ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, const void *data,
+ size_t len)
{
const struct mipi_dsi_host_ops *ops = dsi->host->ops;
struct mipi_dsi_msg msg = {
- .channel = channel,
+ .channel = dsi->channel,
.tx_buf = data,
.tx_len = len
};
@@ -239,19 +238,18 @@ EXPORT_SYMBOL(mipi_dsi_dcs_write);
/**
* mipi_dsi_dcs_read - send DCS read request command
* @dsi: DSI device
- * @channel: virtual channel
* @cmd: DCS read command
* @data: pointer to read buffer
* @len: length of @data
*
* Function returns number of read bytes or error code.
*/
-ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, unsigned int channel,
- u8 cmd, void *data, size_t len)
+ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
+ size_t len)
{
const struct mipi_dsi_host_ops *ops = dsi->host->ops;
struct mipi_dsi_msg msg = {
- .channel = channel,
+ .channel = dsi->channel,
.type = MIPI_DSI_DCS_READ,
.tx_buf = &cmd,
.tx_len = 1,
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 9ba1aaeb807..7f9f6f9e9b7 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -53,6 +53,7 @@ config DRM_EXYNOS_DP
bool "EXYNOS DRM DP driver support"
depends on DRM_EXYNOS_FIMD && ARCH_EXYNOS && (DRM_PTN3460=n || DRM_PTN3460=y || DRM_PTN3460=DRM_EXYNOS)
default DRM_EXYNOS
+ select DRM_PANEL
help
This enables support for DP device.
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index 31c3de98b88..4f3c7eb2d37 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -16,7 +16,6 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/interrupt.h>
-#include <linux/delay.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/gpio.h>
@@ -28,6 +27,7 @@
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
+#include <drm/drm_panel.h>
#include <drm/bridge/ptn3460.h>
#include "exynos_drm_drv.h"
@@ -41,7 +41,7 @@ struct bridge_init {
struct device_node *node;
};
-static int exynos_dp_init_dp(struct exynos_dp_device *dp)
+static void exynos_dp_init_dp(struct exynos_dp_device *dp)
{
exynos_dp_reset(dp);
@@ -58,8 +58,6 @@ static int exynos_dp_init_dp(struct exynos_dp_device *dp)
exynos_dp_init_hpd(dp);
exynos_dp_init_aux(dp);
-
- return 0;
}
static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
@@ -875,10 +873,24 @@ static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
static void exynos_dp_hotplug(struct work_struct *work)
{
struct exynos_dp_device *dp;
- int ret;
dp = container_of(work, struct exynos_dp_device, hotplug_work);
+ if (dp->drm_dev)
+ drm_helper_hpd_irq_event(dp->drm_dev);
+}
+
+static void exynos_dp_commit(struct exynos_drm_display *display)
+{
+ struct exynos_dp_device *dp = display->ctx;
+ int ret;
+
+ /* Keep the panel disabled while we configure video */
+ if (dp->panel) {
+ if (drm_panel_disable(dp->panel))
+ DRM_ERROR("failed to disable the panel\n");
+ }
+
ret = exynos_dp_detect_hpd(dp);
if (ret) {
/* Cable has been disconnected, we're done */
@@ -909,6 +921,12 @@ static void exynos_dp_hotplug(struct work_struct *work)
ret = exynos_dp_config_video(dp);
if (ret)
dev_err(dp->dev, "unable to config video\n");
+
+ /* Safe to enable the panel now */
+ if (dp->panel) {
+ if (drm_panel_enable(dp->panel))
+ DRM_ERROR("failed to enable the panel\n");
+ }
}
static enum drm_connector_status exynos_dp_detect(
@@ -933,15 +951,18 @@ static int exynos_dp_get_modes(struct drm_connector *connector)
struct exynos_dp_device *dp = ctx_from_connector(connector);
struct drm_display_mode *mode;
+ if (dp->panel)
+ return drm_panel_get_modes(dp->panel);
+
mode = drm_mode_create(connector->dev);
if (!mode) {
DRM_ERROR("failed to create a new display mode.\n");
return 0;
}
- drm_display_mode_from_videomode(&dp->panel.vm, mode);
- mode->width_mm = dp->panel.width_mm;
- mode->height_mm = dp->panel.height_mm;
+ drm_display_mode_from_videomode(&dp->priv.vm, mode);
+ mode->width_mm = dp->priv.width_mm;
+ mode->height_mm = dp->priv.height_mm;
connector->display_info.width_mm = mode->width_mm;
connector->display_info.height_mm = mode->height_mm;
@@ -1021,7 +1042,10 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display,
drm_connector_register(connector);
drm_mode_connector_attach_encoder(connector, encoder);
- return 0;
+ if (dp->panel)
+ ret = drm_panel_attach(dp->panel, &dp->connector);
+
+ return ret;
}
static void exynos_dp_phy_init(struct exynos_dp_device *dp)
@@ -1050,26 +1074,50 @@ static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
}
}
-static void exynos_dp_poweron(struct exynos_dp_device *dp)
+static void exynos_dp_poweron(struct exynos_drm_display *display)
{
+ struct exynos_dp_device *dp = display->ctx;
+
if (dp->dpms_mode == DRM_MODE_DPMS_ON)
return;
+ if (dp->panel) {
+ if (drm_panel_prepare(dp->panel)) {
+ DRM_ERROR("failed to setup the panel\n");
+ return;
+ }
+ }
+
clk_prepare_enable(dp->clock);
exynos_dp_phy_init(dp);
exynos_dp_init_dp(dp);
enable_irq(dp->irq);
+ exynos_dp_commit(display);
}
-static void exynos_dp_poweroff(struct exynos_dp_device *dp)
+static void exynos_dp_poweroff(struct exynos_drm_display *display)
{
+ struct exynos_dp_device *dp = display->ctx;
+
if (dp->dpms_mode != DRM_MODE_DPMS_ON)
return;
+ if (dp->panel) {
+ if (drm_panel_disable(dp->panel)) {
+ DRM_ERROR("failed to disable the panel\n");
+ return;
+ }
+ }
+
disable_irq(dp->irq);
flush_work(&dp->hotplug_work);
exynos_dp_phy_exit(dp);
clk_disable_unprepare(dp->clock);
+
+ if (dp->panel) {
+ if (drm_panel_unprepare(dp->panel))
+ DRM_ERROR("failed to turnoff the panel\n");
+ }
}
static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
@@ -1078,12 +1126,12 @@ static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
switch (mode) {
case DRM_MODE_DPMS_ON:
- exynos_dp_poweron(dp);
+ exynos_dp_poweron(display);
break;
case DRM_MODE_DPMS_STANDBY:
case DRM_MODE_DPMS_SUSPEND:
case DRM_MODE_DPMS_OFF:
- exynos_dp_poweroff(dp);
+ exynos_dp_poweroff(display);
break;
default:
break;
@@ -1094,6 +1142,7 @@ static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
static struct exynos_drm_display_ops exynos_dp_display_ops = {
.create_connector = exynos_dp_create_connector,
.dpms = exynos_dp_dpms,
+ .commit = exynos_dp_commit,
};
static struct exynos_drm_display exynos_dp_display = {
@@ -1201,7 +1250,7 @@ static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
{
int ret;
- ret = of_get_videomode(dp->dev->of_node, &dp->panel.vm,
+ ret = of_get_videomode(dp->dev->of_node, &dp->priv.vm,
OF_USE_NATIVE_MODE);
if (ret) {
DRM_ERROR("failed: of_get_videomode() : %d\n", ret);
@@ -1215,16 +1264,10 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *drm_dev = data;
struct resource *res;
- struct exynos_dp_device *dp;
+ struct exynos_dp_device *dp = exynos_dp_display.ctx;
unsigned int irq_flags;
-
int ret = 0;
- dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
- GFP_KERNEL);
- if (!dp)
- return -ENOMEM;
-
dp->dev = &pdev->dev;
dp->dpms_mode = DRM_MODE_DPMS_OFF;
@@ -1236,9 +1279,11 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
if (ret)
return ret;
- ret = exynos_dp_dt_parse_panel(dp);
- if (ret)
- return ret;
+ if (!dp->panel) {
+ ret = exynos_dp_dt_parse_panel(dp);
+ if (ret)
+ return ret;
+ }
dp->clock = devm_clk_get(&pdev->dev, "dp");
if (IS_ERR(dp->clock)) {
@@ -1298,7 +1343,6 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
disable_irq(dp->irq);
dp->drm_dev = drm_dev;
- exynos_dp_display.ctx = dp;
platform_set_drvdata(pdev, &exynos_dp_display);
@@ -1325,6 +1369,9 @@ static const struct component_ops exynos_dp_ops = {
static int exynos_dp_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
+ struct device_node *panel_node;
+ struct exynos_dp_device *dp;
int ret;
ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR,
@@ -1332,6 +1379,21 @@ static int exynos_dp_probe(struct platform_device *pdev)
if (ret)
return ret;
+ dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
+ GFP_KERNEL);
+ if (!dp)
+ return -ENOMEM;
+
+ panel_node = of_parse_phandle(dev->of_node, "panel", 0);
+ if (panel_node) {
+ dp->panel = of_drm_find_panel(panel_node);
+ of_node_put(panel_node);
+ if (!dp->panel)
+ return -EPROBE_DEFER;
+ }
+
+ exynos_dp_display.ctx = dp;
+
ret = component_add(&pdev->dev, &exynos_dp_ops);
if (ret)
exynos_drm_component_del(&pdev->dev,
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
index 02cc4f9ab90..a1aee6931bd 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.h
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
@@ -149,6 +149,7 @@ struct exynos_dp_device {
struct drm_device *drm_dev;
struct drm_connector connector;
struct drm_encoder *encoder;
+ struct drm_panel *panel;
struct clk *clock;
unsigned int irq;
void __iomem *reg_base;
@@ -162,7 +163,7 @@ struct exynos_dp_device {
int dpms_mode;
int hpd_gpio;
- struct exynos_drm_panel_info panel;
+ struct exynos_drm_panel_info priv;
};
/* exynos_dp_reg.c */
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
index 3aa1c7ebbfc..fa08f05e3e3 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
@@ -125,14 +125,18 @@ static int exynos_dpi_create_connector(struct exynos_drm_display *display,
static void exynos_dpi_poweron(struct exynos_dpi *ctx)
{
- if (ctx->panel)
+ if (ctx->panel) {
+ drm_panel_prepare(ctx->panel);
drm_panel_enable(ctx->panel);
+ }
}
static void exynos_dpi_poweroff(struct exynos_dpi *ctx)
{
- if (ctx->panel)
+ if (ctx->panel) {
drm_panel_disable(ctx->panel);
+ drm_panel_unprepare(ctx->panel);
+ }
}
static void exynos_dpi_dpms(struct exynos_drm_display *display, int mode)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 86aebd83a71..442aa2d0013 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1333,7 +1333,7 @@ static int exynos_dsi_enable(struct exynos_dsi *dsi)
if (ret < 0)
return ret;
- ret = drm_panel_enable(dsi->panel);
+ ret = drm_panel_prepare(dsi->panel);
if (ret < 0) {
exynos_dsi_poweroff(dsi);
return ret;
@@ -1342,6 +1342,14 @@ static int exynos_dsi_enable(struct exynos_dsi *dsi)
exynos_dsi_set_display_mode(dsi);
exynos_dsi_set_display_enable(dsi, true);
+ ret = drm_panel_enable(dsi->panel);
+ if (ret < 0) {
+ exynos_dsi_set_display_enable(dsi, false);
+ drm_panel_unprepare(dsi->panel);
+ exynos_dsi_poweroff(dsi);
+ return ret;
+ }
+
dsi->state |= DSIM_STATE_ENABLED;
return 0;
@@ -1352,8 +1360,9 @@ static void exynos_dsi_disable(struct exynos_dsi *dsi)
if (!(dsi->state & DSIM_STATE_ENABLED))
return;
- exynos_dsi_set_display_enable(dsi, false);
drm_panel_disable(dsi->panel);
+ exynos_dsi_set_display_enable(dsi, false);
+ drm_panel_unprepare(dsi->panel);
exynos_dsi_poweroff(dsi);
dsi->state &= ~DSIM_STATE_ENABLED;
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 4ec874da566..bee9f72b3a9 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -5,7 +5,7 @@ config DRM_PANEL
Panel registration and lookup framework.
menu "Display Panels"
- depends on DRM_PANEL
+ depends on DRM && DRM_PANEL
config DRM_PANEL_SIMPLE
tristate "support for simple panels"
@@ -18,14 +18,11 @@ config DRM_PANEL_SIMPLE
config DRM_PANEL_LD9040
tristate "LD9040 RGB/SPI panel"
- depends on DRM && DRM_PANEL
- depends on OF
- select SPI
+ depends on OF && SPI
select VIDEOMODE_HELPERS
config DRM_PANEL_S6E8AA0
tristate "S6E8AA0 DSI video mode panel"
- depends on DRM && DRM_PANEL
depends on OF
select DRM_MIPI_DSI
select VIDEOMODE_HELPERS
diff --git a/drivers/gpu/drm/panel/panel-ld9040.c b/drivers/gpu/drm/panel/panel-ld9040.c
index db1601fdbe2..42ac67b21e9 100644
--- a/drivers/gpu/drm/panel/panel-ld9040.c
+++ b/drivers/gpu/drm/panel/panel-ld9040.c
@@ -110,7 +110,10 @@ struct ld9040 {
int error;
};
-#define panel_to_ld9040(p) container_of(p, struct ld9040, panel)
+static inline struct ld9040 *panel_to_ld9040(struct drm_panel *panel)
+{
+ return container_of(panel, struct ld9040, panel);
+}
static int ld9040_clear_error(struct ld9040 *ctx)
{
@@ -216,6 +219,11 @@ static int ld9040_power_off(struct ld9040 *ctx)
static int ld9040_disable(struct drm_panel *panel)
{
+ return 0;
+}
+
+static int ld9040_unprepare(struct drm_panel *panel)
+{
struct ld9040 *ctx = panel_to_ld9040(panel);
msleep(120);
@@ -228,7 +236,7 @@ static int ld9040_disable(struct drm_panel *panel)
return ld9040_power_off(ctx);
}
-static int ld9040_enable(struct drm_panel *panel)
+static int ld9040_prepare(struct drm_panel *panel)
{
struct ld9040 *ctx = panel_to_ld9040(panel);
int ret;
@@ -242,11 +250,16 @@ static int ld9040_enable(struct drm_panel *panel)
ret = ld9040_clear_error(ctx);
if (ret < 0)
- ld9040_disable(panel);
+ ld9040_unprepare(panel);
return ret;
}
+static int ld9040_enable(struct drm_panel *panel)
+{
+ return 0;
+}
+
static int ld9040_get_modes(struct drm_panel *panel)
{
struct drm_connector *connector = panel->connector;
@@ -273,6 +286,8 @@ static int ld9040_get_modes(struct drm_panel *panel)
static const struct drm_panel_funcs ld9040_drm_funcs = {
.disable = ld9040_disable,
+ .unprepare = ld9040_unprepare,
+ .prepare = ld9040_prepare,
.enable = ld9040_enable,
.get_modes = ld9040_get_modes,
};
diff --git a/drivers/gpu/drm/panel/panel-s6e8aa0.c b/drivers/gpu/drm/panel/panel-s6e8aa0.c
index 06e57a26db7..b5217fe37f0 100644
--- a/drivers/gpu/drm/panel/panel-s6e8aa0.c
+++ b/drivers/gpu/drm/panel/panel-s6e8aa0.c
@@ -120,7 +120,10 @@ struct s6e8aa0 {
int error;
};
-#define panel_to_s6e8aa0(p) container_of(p, struct s6e8aa0, panel)
+static inline struct s6e8aa0 *panel_to_s6e8aa0(struct drm_panel *panel)
+{
+ return container_of(panel, struct s6e8aa0, panel);
+}
static int s6e8aa0_clear_error(struct s6e8aa0 *ctx)
{
@@ -133,14 +136,14 @@ static int s6e8aa0_clear_error(struct s6e8aa0 *ctx)
static void s6e8aa0_dcs_write(struct s6e8aa0 *ctx, const void *data, size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
- int ret;
+ ssize_t ret;
if (ctx->error < 0)
return;
- ret = mipi_dsi_dcs_write(dsi, dsi->channel, data, len);
+ ret = mipi_dsi_dcs_write(dsi, data, len);
if (ret < 0) {
- dev_err(ctx->dev, "error %d writing dcs seq: %*ph\n", ret, len,
+ dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", ret, len,
data);
ctx->error = ret;
}
@@ -154,7 +157,7 @@ static int s6e8aa0_dcs_read(struct s6e8aa0 *ctx, u8 cmd, void *data, size_t len)
if (ctx->error < 0)
return ctx->error;
- ret = mipi_dsi_dcs_read(dsi, dsi->channel, cmd, data, len);
+ ret = mipi_dsi_dcs_read(dsi, cmd, data, len);
if (ret < 0) {
dev_err(ctx->dev, "error %d reading dcs seq(%#x)\n", ret, cmd);
ctx->error = ret;
@@ -889,6 +892,11 @@ static int s6e8aa0_power_off(struct s6e8aa0 *ctx)
static int s6e8aa0_disable(struct drm_panel *panel)
{
+ return 0;
+}
+
+static int s6e8aa0_unprepare(struct drm_panel *panel)
+{
struct s6e8aa0 *ctx = panel_to_s6e8aa0(panel);
s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_ENTER_SLEEP_MODE);
@@ -900,7 +908,7 @@ static int s6e8aa0_disable(struct drm_panel *panel)
return s6e8aa0_power_off(ctx);
}
-static int s6e8aa0_enable(struct drm_panel *panel)
+static int s6e8aa0_prepare(struct drm_panel *panel)
{
struct s6e8aa0 *ctx = panel_to_s6e8aa0(panel);
int ret;
@@ -913,11 +921,16 @@ static int s6e8aa0_enable(struct drm_panel *panel)
ret = ctx->error;
if (ret < 0)
- s6e8aa0_disable(panel);
+ s6e8aa0_unprepare(panel);
return ret;
}
+static int s6e8aa0_enable(struct drm_panel *panel)
+{
+ return 0;
+}
+
static int s6e8aa0_get_modes(struct drm_panel *panel)
{
struct drm_connector *connector = panel->connector;
@@ -944,6 +957,8 @@ static int s6e8aa0_get_modes(struct drm_panel *panel)
static const struct drm_panel_funcs s6e8aa0_drm_funcs = {
.disable = s6e8aa0_disable,
+ .unprepare = s6e8aa0_unprepare,
+ .prepare = s6e8aa0_prepare,
.enable = s6e8aa0_enable,
.get_modes = s6e8aa0_get_modes,
};
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index a25136132c3..4ce1db0a68f 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -37,14 +37,35 @@ struct panel_desc {
const struct drm_display_mode *modes;
unsigned int num_modes;
+ unsigned int bpc;
+
struct {
unsigned int width;
unsigned int height;
} size;
+
+ /**
+ * @prepare: the time (in milliseconds) that it takes for the panel to
+ * become ready and start receiving video data
+ * @enable: the time (in milliseconds) that it takes for the panel to
+ * display the first valid frame after starting to receive
+ * video data
+ * @disable: the time (in milliseconds) that it takes for the panel to
+ * turn the display off (no content is visible)
+ * @unprepare: the time (in milliseconds) that it takes for the panel
+ * to power itself down completely
+ */
+ struct {
+ unsigned int prepare;
+ unsigned int enable;
+ unsigned int disable;
+ unsigned int unprepare;
+ } delay;
};
struct panel_simple {
struct drm_panel base;
+ bool prepared;
bool enabled;
const struct panel_desc *desc;
@@ -87,6 +108,7 @@ static int panel_simple_get_fixed_modes(struct panel_simple *panel)
num++;
}
+ connector->display_info.bpc = panel->desc->bpc;
connector->display_info.width_mm = panel->desc->size.width;
connector->display_info.height_mm = panel->desc->size.height;
@@ -105,21 +127,40 @@ static int panel_simple_disable(struct drm_panel *panel)
backlight_update_status(p->backlight);
}
+ if (p->desc->delay.disable)
+ msleep(p->desc->delay.disable);
+
+ p->enabled = false;
+
+ return 0;
+}
+
+static int panel_simple_unprepare(struct drm_panel *panel)
+{
+ struct panel_simple *p = to_panel_simple(panel);
+
+ if (!p->prepared)
+ return 0;
+
if (p->enable_gpio)
gpiod_set_value_cansleep(p->enable_gpio, 0);
regulator_disable(p->supply);
- p->enabled = false;
+
+ if (p->desc->delay.unprepare)
+ msleep(p->desc->delay.unprepare);
+
+ p->prepared = false;
return 0;
}
-static int panel_simple_enable(struct drm_panel *panel)
+static int panel_simple_prepare(struct drm_panel *panel)
{
struct panel_simple *p = to_panel_simple(panel);
int err;
- if (p->enabled)
+ if (p->prepared)
return 0;
err = regulator_enable(p->supply);
@@ -131,6 +172,24 @@ static int panel_simple_enable(struct drm_panel *panel)
if (p->enable_gpio)
gpiod_set_value_cansleep(p->enable_gpio, 1);
+ if (p->desc->delay.prepare)
+ msleep(p->desc->delay.prepare);
+
+ p->prepared = true;
+
+ return 0;
+}
+
+static int panel_simple_enable(struct drm_panel *panel)
+{
+ struct panel_simple *p = to_panel_simple(panel);
+
+ if (p->enabled)
+ return 0;
+
+ if (p->desc->delay.enable)
+ msleep(p->desc->delay.enable);
+
if (p->backlight) {
p->backlight->props.power = FB_BLANK_UNBLANK;
backlight_update_status(p->backlight);
@@ -164,6 +223,8 @@ static int panel_simple_get_modes(struct drm_panel *panel)
static const struct drm_panel_funcs panel_simple_funcs = {
.disable = panel_simple_disable,
+ .unprepare = panel_simple_unprepare,
+ .prepare = panel_simple_prepare,
.enable = panel_simple_enable,
.get_modes = panel_simple_get_modes,
};
@@ -179,22 +240,21 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
return -ENOMEM;
panel->enabled = false;
+ panel->prepared = false;
panel->desc = desc;
panel->supply = devm_regulator_get(dev, "power");
if (IS_ERR(panel->supply))
return PTR_ERR(panel->supply);
- panel->enable_gpio = devm_gpiod_get(dev, "enable");
+ panel->enable_gpio = devm_gpiod_get_optional(dev, "enable");
if (IS_ERR(panel->enable_gpio)) {
err = PTR_ERR(panel->enable_gpio);
- if (err != -ENOENT) {
- dev_err(dev, "failed to request GPIO: %d\n", err);
- return err;
- }
+ dev_err(dev, "failed to request GPIO: %d\n", err);
+ return err;
+ }
- panel->enable_gpio = NULL;
- } else {
+ if (panel->enable_gpio) {
err = gpiod_direction_output(panel->enable_gpio, 0);
if (err < 0) {
dev_err(dev, "failed to setup GPIO: %d\n", err);
@@ -285,6 +345,7 @@ static const struct drm_display_mode auo_b101aw03_mode = {
static const struct panel_desc auo_b101aw03 = {
.modes = &auo_b101aw03_mode,
.num_modes = 1,
+ .bpc = 6,
.size = {
.width = 223,
.height = 125,
@@ -307,12 +368,40 @@ static const struct drm_display_mode auo_b133xtn01_mode = {
static const struct panel_desc auo_b133xtn01 = {
.modes = &auo_b133xtn01_mode,
.num_modes = 1,
+ .bpc = 6,
.size = {
.width = 293,
.height = 165,
},
};
+static const struct drm_display_mode auo_b133htn01_mode = {
+ .clock = 150660,
+ .hdisplay = 1920,
+ .hsync_start = 1920 + 172,
+ .hsync_end = 1920 + 172 + 80,
+ .htotal = 1920 + 172 + 80 + 60,
+ .vdisplay = 1080,
+ .vsync_start = 1080 + 25,
+ .vsync_end = 1080 + 25 + 10,
+ .vtotal = 1080 + 25 + 10 + 10,
+ .vrefresh = 60,
+};
+
+static const struct panel_desc auo_b133htn01 = {
+ .modes = &auo_b133htn01_mode,
+ .num_modes = 1,
+ .size = {
+ .width = 293,
+ .height = 165,
+ },
+ .delay = {
+ .prepare = 105,
+ .enable = 20,
+ .unprepare = 50,
+ },
+};
+
static const struct drm_display_mode chunghwa_claa101wa01a_mode = {
.clock = 72070,
.hdisplay = 1366,
@@ -329,6 +418,7 @@ static const struct drm_display_mode chunghwa_claa101wa01a_mode = {
static const struct panel_desc chunghwa_claa101wa01a = {
.modes = &chunghwa_claa101wa01a_mode,
.num_modes = 1,
+ .bpc = 6,
.size = {
.width = 220,
.height = 120,
@@ -351,6 +441,7 @@ static const struct drm_display_mode chunghwa_claa101wb01_mode = {
static const struct panel_desc chunghwa_claa101wb01 = {
.modes = &chunghwa_claa101wb01_mode,
.num_modes = 1,
+ .bpc = 6,
.size = {
.width = 223,
.height = 125,
@@ -374,6 +465,7 @@ static const struct drm_display_mode edt_et057090dhu_mode = {
static const struct panel_desc edt_et057090dhu = {
.modes = &edt_et057090dhu_mode,
.num_modes = 1,
+ .bpc = 6,
.size = {
.width = 115,
.height = 86,
@@ -397,12 +489,82 @@ static const struct drm_display_mode edt_etm0700g0dh6_mode = {
static const struct panel_desc edt_etm0700g0dh6 = {
.modes = &edt_etm0700g0dh6_mode,
.num_modes = 1,
+ .bpc = 6,
.size = {
.width = 152,
.height = 91,
},
};
+static const struct drm_display_mode foxlink_fl500wvr00_a0t_mode = {
+ .clock = 32260,
+ .hdisplay = 800,
+ .hsync_start = 800 + 168,
+ .hsync_end = 800 + 168 + 64,
+ .htotal = 800 + 168 + 64 + 88,
+ .vdisplay = 480,
+ .vsync_start = 480 + 37,
+ .vsync_end = 480 + 37 + 2,
+ .vtotal = 480 + 37 + 2 + 8,
+ .vrefresh = 60,
+};
+
+static const struct panel_desc foxlink_fl500wvr00_a0t = {
+ .modes = &foxlink_fl500wvr00_a0t_mode,
+ .num_modes = 1,
+ .size = {
+ .width = 108,
+ .height = 65,
+ },
+};
+
+static const struct drm_display_mode innolux_n116bge_mode = {
+ .clock = 71000,
+ .hdisplay = 1366,
+ .hsync_start = 1366 + 64,
+ .hsync_end = 1366 + 64 + 6,
+ .htotal = 1366 + 64 + 6 + 64,
+ .vdisplay = 768,
+ .vsync_start = 768 + 8,
+ .vsync_end = 768 + 8 + 4,
+ .vtotal = 768 + 8 + 4 + 8,
+ .vrefresh = 60,
+ .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+};
+
+static const struct panel_desc innolux_n116bge = {
+ .modes = &innolux_n116bge_mode,
+ .num_modes = 1,
+ .bpc = 6,
+ .size = {
+ .width = 256,
+ .height = 144,
+ },
+};
+
+static const struct drm_display_mode innolux_n156bge_l21_mode = {
+ .clock = 69300,
+ .hdisplay = 1366,
+ .hsync_start = 1366 + 16,
+ .hsync_end = 1366 + 16 + 34,
+ .htotal = 1366 + 16 + 34 + 50,
+ .vdisplay = 768,
+ .vsync_start = 768 + 2,
+ .vsync_end = 768 + 2 + 6,
+ .vtotal = 768 + 2 + 6 + 12,
+ .vrefresh = 60,
+};
+
+static const struct panel_desc innolux_n156bge_l21 = {
+ .modes = &innolux_n156bge_l21_mode,
+ .num_modes = 1,
+ .bpc = 6,
+ .size = {
+ .width = 344,
+ .height = 193,
+ },
+};
+
static const struct drm_display_mode lg_lp129qe_mode = {
.clock = 285250,
.hdisplay = 2560,
@@ -419,6 +581,7 @@ static const struct drm_display_mode lg_lp129qe_mode = {
static const struct panel_desc lg_lp129qe = {
.modes = &lg_lp129qe_mode,
.num_modes = 1,
+ .bpc = 8,
.size = {
.width = 272,
.height = 181,
@@ -441,6 +604,7 @@ static const struct drm_display_mode samsung_ltn101nt05_mode = {
static const struct panel_desc samsung_ltn101nt05 = {
.modes = &samsung_ltn101nt05_mode,
.num_modes = 1,
+ .bpc = 6,
.size = {
.width = 1024,
.height = 600,
@@ -452,6 +616,9 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "auo,b101aw03",
.data = &auo_b101aw03,
}, {
+ .compatible = "auo,b133htn01",
+ .data = &auo_b133htn01,
+ }, {
.compatible = "auo,b133xtn01",
.data = &auo_b133xtn01,
}, {
@@ -470,14 +637,21 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "edt,etm0700g0dh6",
.data = &edt_etm0700g0dh6,
}, {
+ .compatible = "foxlink,fl500wvr00-a0t",
+ .data = &foxlink_fl500wvr00_a0t,
+ }, {
+ .compatible = "innolux,n116bge",
+ .data = &innolux_n116bge,
+ }, {
+ .compatible = "innolux,n156bge-l21",
+ .data = &innolux_n156bge_l21,
+ }, {
.compatible = "lg,lp129qe",
.data = &lg_lp129qe,
}, {
.compatible = "samsung,ltn101nt05",
.data = &samsung_ltn101nt05,
}, {
- .compatible = "simple-panel",
- }, {
/* sentinel */
}
};
@@ -545,7 +719,7 @@ static const struct panel_desc_dsi lg_ld070wx3_sl01 = {
.height = 151,
},
},
- .flags = MIPI_DSI_MODE_VIDEO,
+ .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS,
.format = MIPI_DSI_FMT_RGB888,
.lanes = 4,
};
@@ -599,7 +773,8 @@ static const struct panel_desc_dsi panasonic_vvx10f004b00 = {
.height = 136,
},
},
- .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE,
+ .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+ MIPI_DSI_CLOCK_NON_CONTINUOUS,
.format = MIPI_DSI_FMT_RGB888,
.lanes = 4,
};
diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
index 446837e955b..0c67d7eebc9 100644
--- a/drivers/gpu/drm/tegra/output.c
+++ b/drivers/gpu/drm/tegra/output.c
@@ -140,7 +140,9 @@ static void tegra_encoder_dpms(struct drm_encoder *encoder, int mode)
if (mode != DRM_MODE_DPMS_ON) {
drm_panel_disable(panel);
tegra_output_disable(output);
+ drm_panel_unprepare(panel);
} else {
+ drm_panel_prepare(panel);
tegra_output_enable(output);
drm_panel_enable(panel);
}
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 944f33f8ba3..2bb55b8b903 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -94,6 +94,8 @@ void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
#define MIPI_DSI_MODE_VSYNC_FLUSH BIT(8)
/* disable EoT packets in HS mode */
#define MIPI_DSI_MODE_EOT_PACKET BIT(9)
+/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
+#define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10)
enum mipi_dsi_pixel_format {
MIPI_DSI_FMT_RGB888,
@@ -121,14 +123,17 @@ struct mipi_dsi_device {
unsigned long mode_flags;
};
-#define to_mipi_dsi_device(d) container_of(d, struct mipi_dsi_device, dev)
+static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
+{
+ return container_of(dev, struct mipi_dsi_device, dev);
+}
int mipi_dsi_attach(struct mipi_dsi_device *dsi);
int mipi_dsi_detach(struct mipi_dsi_device *dsi);
-int mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, unsigned int channel,
- const void *data, size_t len);
-ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, unsigned int channel,
- u8 cmd, void *data, size_t len);
+ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, const void *data,
+ size_t len);
+ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
+ size_t len);
/**
* struct mipi_dsi_driver - DSI driver
@@ -144,7 +149,11 @@ struct mipi_dsi_driver {
void (*shutdown)(struct mipi_dsi_device *dsi);
};
-#define to_mipi_dsi_driver(d) container_of(d, struct mipi_dsi_driver, driver)
+static inline struct mipi_dsi_driver *
+to_mipi_dsi_driver(struct device_driver *driver)
+{
+ return container_of(driver, struct mipi_dsi_driver, driver);
+}
static inline void *mipi_dsi_get_drvdata(const struct mipi_dsi_device *dsi)
{
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
index c2ab77add67..1fbcc96063a 100644
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -30,8 +30,42 @@ struct drm_connector;
struct drm_device;
struct drm_panel;
+/**
+ * struct drm_panel_funcs - perform operations on a given panel
+ * @disable: disable panel (turn off back light, etc.)
+ * @unprepare: turn off panel
+ * @prepare: turn on panel and perform set up
+ * @enable: enable panel (turn on back light, etc.)
+ * @get_modes: add modes to the connector that the panel is attached to and
+ * return the number of modes added
+ *
+ * The .prepare() function is typically called before the display controller
+ * starts to transmit video data. Panel drivers can use this to turn the panel
+ * on and wait for it to become ready. If additional configuration is required
+ * (via a control bus such as I2C, SPI or DSI for example) this is a good time
+ * to do that.
+ *
+ * After the display controller has started transmitting video data, it's safe
+ * to call the .enable() function. This will typically enable the backlight to
+ * make the image on screen visible. Some panels require a certain amount of
+ * time or frames before the image is displayed. This function is responsible
+ * for taking this into account before enabling the backlight to avoid visual
+ * glitches.
+ *
+ * Before stopping video transmission from the display controller it can be
+ * necessary to turn off the panel to avoid visual glitches. This is done in
+ * the .disable() function. Analogously to .enable() this typically involves
+ * turning off the backlight and waiting for some time to make sure no image
+ * is visible on the panel. It is then safe for the display controller to
+ * cease transmission of video data.
+ *
+ * To save power when no video data is transmitted, a driver can power down
+ * the panel. This is the job of the .unprepare() function.
+ */
struct drm_panel_funcs {
int (*disable)(struct drm_panel *panel);
+ int (*unprepare)(struct drm_panel *panel);
+ int (*prepare)(struct drm_panel *panel);
int (*enable)(struct drm_panel *panel);
int (*get_modes)(struct drm_panel *panel);
};
@@ -46,6 +80,14 @@ struct drm_panel {
struct list_head list;
};
+static inline int drm_panel_unprepare(struct drm_panel *panel)
+{
+ if (panel && panel->funcs && panel->funcs->unprepare)
+ return panel->funcs->unprepare(panel);
+
+ return panel ? -ENOSYS : -EINVAL;
+}
+
static inline int drm_panel_disable(struct drm_panel *panel)
{
if (panel && panel->funcs && panel->funcs->disable)
@@ -54,6 +96,14 @@ static inline int drm_panel_disable(struct drm_panel *panel)
return panel ? -ENOSYS : -EINVAL;
}
+static inline int drm_panel_prepare(struct drm_panel *panel)
+{
+ if (panel && panel->funcs && panel->funcs->prepare)
+ return panel->funcs->prepare(panel);
+
+ return panel ? -ENOSYS : -EINVAL;
+}
+
static inline int drm_panel_enable(struct drm_panel *panel)
{
if (panel && panel->funcs && panel->funcs->enable)
@@ -62,6 +112,14 @@ static inline int drm_panel_enable(struct drm_panel *panel)
return panel ? -ENOSYS : -EINVAL;
}
+static inline int drm_panel_get_modes(struct drm_panel *panel)
+{
+ if (panel && panel->funcs && panel->funcs->get_modes)
+ return panel->funcs->get_modes(panel);
+
+ return panel ? -ENOSYS : -EINVAL;
+}
+
void drm_panel_init(struct drm_panel *panel);
int drm_panel_add(struct drm_panel *panel);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-28 23:51:31 +0000