Modifies the exynos mipi dsi driver as per the CDF-T.
Signed-off-by: Vikas Sajjan <vikas.saj...@linaro.org>
---
drivers/video/exynos/exynos_mipi_dsi.c | 197 ++++++-------------------
drivers/video/exynos/exynos_mipi_dsi_common.c | 22 ++-
drivers/video/exynos/exynos_mipi_dsi_common.h | 12 +-
include/video/exynos_mipi_dsim.h | 5 +-
4 files changed, 69 insertions(+), 167 deletions(-)
diff --git a/drivers/video/exynos/exynos_mipi_dsi.c
b/drivers/video/exynos/exynos_mipi_dsi.c
index 32dde44..c4eca0a 100644
--- a/drivers/video/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/exynos/exynos_mipi_dsi.c
@@ -32,14 +32,13 @@
#include <linux/notifier.h>
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.h>
-
+#include <video/display.h>
#include <video/exynos_mipi_dsim.h>
#include <plat/fb.h>
#include "exynos_mipi_dsi_common.h"
#include "exynos_mipi_dsi_lowlevel.h"
-
struct mipi_dsim_ddi {
int bus_id;
struct list_head list;
@@ -97,8 +96,6 @@ static void exynos_mipi_update_cfg(struct mipi_dsim_device
*dsim)
exynos_mipi_dsi_init_dsim(dsim);
exynos_mipi_dsi_init_link(dsim);
- exynos_mipi_dsi_set_hs_enable(dsim);
-
/* set display timing. */
exynos_mipi_dsi_set_display_mode(dsim, dsim->dsim_config);
@@ -111,12 +108,13 @@ static void exynos_mipi_update_cfg(struct
mipi_dsim_device *dsim)
exynos_mipi_dsi_stand_by(dsim, 1);
}
-static int exynos_mipi_dsi_early_blank_mode(struct mipi_dsim_device *dsim,
+static int exynos_mipi_dsi_early_blank_mode(struct video_source *video_source,
int power)
{
+ struct mipi_dsim_device *dsim = container_of(video_source,
+ struct mipi_dsim_device, video_source);
struct mipi_dsim_lcd_driver *client_drv = dsim->dsim_lcd_drv;
struct mipi_dsim_lcd_device *client_dev = dsim->dsim_lcd_dev;
-
switch (power) {
case FB_BLANK_POWERDOWN:
if (dsim->suspended)
@@ -139,12 +137,13 @@ static int exynos_mipi_dsi_early_blank_mode(struct
mipi_dsim_device *dsim,
return 0;
}
-static int exynos_mipi_dsi_blank_mode(struct mipi_dsim_device *dsim, int power)
+static int exynos_mipi_dsi_blank_mode(struct video_source *video_source, int
power)
{
+ struct mipi_dsim_device *dsim = container_of(video_source,
+ struct mipi_dsim_device, video_source);
struct platform_device *pdev = to_platform_device(dsim->dev);
struct mipi_dsim_lcd_driver *client_drv = dsim->dsim_lcd_drv;
struct mipi_dsim_lcd_device *client_dev = dsim->dsim_lcd_dev;
-
switch (power) {
case FB_BLANK_UNBLANK:
if (!dsim->suspended)
@@ -164,6 +163,8 @@ static int exynos_mipi_dsi_blank_mode(struct
mipi_dsim_device *dsim, int power)
exynos_mipi_update_cfg(dsim);
+ exynos_mipi_dsi_set_hs_enable(dsim);
+
/* set lcd panel sequence commands. */
if (client_drv && client_drv->set_sequence)
client_drv->set_sequence(client_dev);
@@ -205,134 +206,31 @@ int exynos_mipi_dsi_register_lcd_device(struct
mipi_dsim_lcd_device *lcd_dev)
return 0;
}
-static struct mipi_dsim_ddi *exynos_mipi_dsi_find_lcd_device(
- struct mipi_dsim_lcd_driver *lcd_drv)
+static void exynos_mipi_dsi_panel_release(struct video_source *src)
{
- struct mipi_dsim_ddi *dsim_ddi, *next;
- struct mipi_dsim_lcd_device *lcd_dev;
-
- mutex_lock(&mipi_dsim_lock);
-
- list_for_each_entry_safe(dsim_ddi, next, &dsim_ddi_list, list) {
- if (!dsim_ddi)
- goto out;
-
- lcd_dev = dsim_ddi->dsim_lcd_dev;
- if (!lcd_dev)
- continue;
-
- if ((strcmp(lcd_drv->name, lcd_dev->name)) == 0) {
- /**
- * bus_id would be used to identify
- * connected bus.
- */
- dsim_ddi->bus_id = lcd_dev->bus_id;
- mutex_unlock(&mipi_dsim_lock);
-
- return dsim_ddi;
- }
-
- list_del(&dsim_ddi->list);
- kfree(dsim_ddi);
- }
-
-out:
- mutex_unlock(&mipi_dsim_lock);
-
- return NULL;
+ pr_info("dsi entity release\n");
}
-int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver *lcd_drv)
+void exynos_mipi_set_hs_enable(struct video_source *video_source, bool enable)
{
- struct mipi_dsim_ddi *dsim_ddi;
-
- if (!lcd_drv->name) {
- pr_err("dsim_lcd_driver name is NULL.\n");
- return -EFAULT;
- }
-
- dsim_ddi = exynos_mipi_dsi_find_lcd_device(lcd_drv);
- if (!dsim_ddi) {
- pr_err("v mipi_dsim_ddi object not found.\n");
- return -EFAULT;
- }
-
- dsim_ddi->dsim_lcd_drv = lcd_drv;
-
- pr_info("v registered panel driver(%s) to mipi-dsi driver.\n",
- lcd_drv->name);
-
- return 0;
-
+ struct mipi_dsim_device *dsim = container_of(video_source,
+ struct mipi_dsim_device, video_source);
+ exynos_mipi_dsi_set_hs_enable(dsim);
+ return;
}
-static struct mipi_dsim_ddi *exynos_mipi_dsi_bind_lcd_ddi(
- struct mipi_dsim_device *dsim,
- const char *name)
-{
- struct mipi_dsim_ddi *dsim_ddi, *next;
- struct mipi_dsim_lcd_driver *lcd_drv;
- struct mipi_dsim_lcd_device *lcd_dev;
- int ret;
-
- mutex_lock(&dsim->lock);
-
- list_for_each_entry_safe(dsim_ddi, next, &dsim_ddi_list, list) {
- lcd_drv = dsim_ddi->dsim_lcd_drv;
- lcd_dev = dsim_ddi->dsim_lcd_dev;
-
-#if 0
- if (!lcd_drv || !lcd_dev ||
- (dsim->id != dsim_ddi->bus_id))
- continue;
-#else
- if (!lcd_drv || !lcd_dev)
- continue;
-#endif
-
- dev_dbg(dsim->dev, "lcd_drv->id = %d, lcd_dev->id = %d\n",
- lcd_drv->id, lcd_dev->id);
- dev_dbg(dsim->dev, "lcd_dev->bus_id = %d, dsim->id = %d\n",
- lcd_dev->bus_id, dsim->id);
-
- if ((strcmp(lcd_drv->name, name) == 0)) {
- lcd_dev->master = dsim;
-
- lcd_dev->dev.parent = dsim->dev;
- dev_set_name(&lcd_dev->dev, "%s", lcd_drv->name);
-
- ret = device_register(&lcd_dev->dev);
- if (ret < 0) {
- dev_err(dsim->dev,
- "can't register %s, status %d\n",
- dev_name(&lcd_dev->dev), ret);
- mutex_unlock(&dsim->lock);
-
- return NULL;
- }
-
- dsim->dsim_lcd_dev = lcd_dev;
- dsim->dsim_lcd_drv = lcd_drv;
-
- mutex_unlock(&dsim->lock);
-
- return dsim_ddi;
- }
- }
-
- mutex_unlock(&dsim->lock);
-
- return NULL;
-}
+static const struct common_video_source_ops dsi_common_ops = {
+ /* No common ops */
+};
-/* define MIPI-DSI Master operations. */
-static struct mipi_dsim_master_ops master_ops = {
- .cmd_read = exynos_mipi_dsi_rd_data,
- .cmd_write = exynos_mipi_dsi_wr_data,
- .get_dsim_frame_done = exynos_mipi_dsi_get_frame_done_status,
- .clear_dsim_frame_done = exynos_mipi_dsi_clear_frame_done,
+static const struct dsi_video_source_ops exynos_dsi_ops = {
+ .dcs_read = exynos_mipi_dsi_rd_data,
+ .dcs_write = exynos_mipi_dsi_wr_data,
+ .get_frame_done = exynos_mipi_dsi_get_frame_done_status,
+ .clear_frame_done = exynos_mipi_dsi_clear_frame_done,
.set_early_blank_mode = exynos_mipi_dsi_early_blank_mode,
.set_blank_mode = exynos_mipi_dsi_blank_mode,
+ .enable_hs = exynos_mipi_set_hs_enable,
};
static int exynos_mipi_dsi_probe(struct platform_device *pdev)
@@ -341,7 +239,6 @@ static int exynos_mipi_dsi_probe(struct platform_device
*pdev)
struct mipi_dsim_device *dsim;
struct mipi_dsim_config *dsim_config;
struct mipi_dsim_platform_data *dsim_pd;
- struct mipi_dsim_ddi *dsim_ddi;
int ret = -EINVAL;
dsim = kzalloc(sizeof(struct mipi_dsim_device), GFP_KERNEL);
@@ -360,6 +257,7 @@ static int exynos_mipi_dsi_probe(struct platform_device
*pdev)
dev_err(&pdev->dev, "failed to get platform data for dsim.\n");
goto err_clock_get;
}
+
/* get mipi_dsim_config. */
dsim_config = dsim_pd->dsim_config;
if (dsim_config == NULL) {
@@ -368,7 +266,6 @@ static int exynos_mipi_dsi_probe(struct platform_device
*pdev)
}
dsim->dsim_config = dsim_config;
- dsim->master_ops = &master_ops;
mutex_init(&dsim->lock);
@@ -411,14 +308,6 @@ static int exynos_mipi_dsi_probe(struct platform_device
*pdev)
mutex_init(&dsim->lock);
- /* bind lcd ddi matched with panel name. */
- dsim_ddi = exynos_mipi_dsi_bind_lcd_ddi(dsim, dsim_pd->lcd_panel_name);
- if (!dsim_ddi) {
- dev_err(&pdev->dev, " >>> probe: mipi_dsim_ddi object not
found.\n");
- ret = -EINVAL;
- goto err_bind;
- }
-
dsim->irq = platform_get_irq(pdev, 0);
if (dsim->irq < 0) {
dev_err(&pdev->dev, "failed to request dsim irq resource\n");
@@ -441,20 +330,12 @@ static int exynos_mipi_dsi_probe(struct platform_device
*pdev)
/* enable interrupts */
exynos_mipi_dsi_init_interrupt(dsim);
- /* initialize mipi-dsi client(lcd panel). */
- if (dsim_ddi->dsim_lcd_drv && dsim_ddi->dsim_lcd_drv->probe)
- dsim_ddi->dsim_lcd_drv->probe(dsim_ddi->dsim_lcd_dev);
-
/* in case mipi-dsi has been enabled by bootloader */
if (dsim_pd->enabled) {
exynos_mipi_regulator_enable(dsim);
goto done;
}
- /* lcd panel power on. */
- if (dsim_ddi->dsim_lcd_drv && dsim_ddi->dsim_lcd_drv->power_on)
- dsim_ddi->dsim_lcd_drv->power_on(dsim_ddi->dsim_lcd_dev, 1);
-
exynos_mipi_regulator_enable(dsim);
/* enable MIPI-DSI PHY. */
@@ -463,12 +344,22 @@ static int exynos_mipi_dsi_probe(struct platform_device
*pdev)
exynos_mipi_update_cfg(dsim);
- /* set lcd panel sequence commands. */
- if (dsim_ddi->dsim_lcd_drv && dsim_ddi->dsim_lcd_drv->set_sequence)
- dsim_ddi->dsim_lcd_drv->set_sequence(dsim_ddi->dsim_lcd_dev);
-
dsim->suspended = false;
+ dsim->video_source.dev = &pdev->dev;
+ dsim->video_source.release = exynos_mipi_dsi_panel_release;
+ dsim->video_source.common_ops = &dsi_common_ops;
+ dsim->video_source.ops.dsi = &exynos_dsi_ops;
+ dsim->video_source.name = "exynos-mipi-dsim";
+
+ ret = video_source_register(&dsim->video_source);
+ if (ret < 0) {
+ pr_err("dsi entity register failed\n");
+ goto err_bind;
+ }
+
+ pr_info("dsi entity registered: %p\n", &dsim->video_source);
+
done:
platform_set_drvdata(pdev, dsim);
@@ -502,6 +393,8 @@ static int __devexit exynos_mipi_dsi_remove(struct
platform_device *pdev)
struct mipi_dsim_ddi *dsim_ddi, *next;
struct mipi_dsim_lcd_driver *dsim_lcd_drv;
+ video_source_unregister(&dsim->video_source);
+
iounmap(dsim->reg_base);
clk_disable(dsim->clock);
@@ -586,6 +479,8 @@ static int exynos_mipi_dsi_resume(struct device *dev)
exynos_mipi_update_cfg(dsim);
+ exynos_mipi_dsi_set_hs_enable(dsim);
+
/* set lcd panel sequence commands. */
if (client_drv && client_drv->set_sequence)
client_drv->set_sequence(client_dev);
@@ -603,7 +498,7 @@ static const struct dev_pm_ops exynos_mipi_dsi_pm_ops = {
static struct platform_device_id exynos_mipi_driver_ids[] = {
{
.name = "exynos-mipi",
- .driver_data = NULL,
+ .driver_data = 0,
},
{},
};
@@ -621,7 +516,7 @@ MODULE_DEVICE_TABLE(of, exynos_mipi_match);
static struct platform_driver exynos_mipi_dsi_driver = {
.probe = exynos_mipi_dsi_probe,
.remove = __devexit_p(exynos_mipi_dsi_remove),
- //.id_table = exynos_mipi_driver_ids,
+ .id_table = exynos_mipi_driver_ids,
.driver = {
.name = "exynos-mipi-dsim",
.owner = THIS_MODULE,
diff --git a/drivers/video/exynos/exynos_mipi_dsi_common.c
b/drivers/video/exynos/exynos_mipi_dsi_common.c
index 8888dc7..8971804 100644
--- a/drivers/video/exynos/exynos_mipi_dsi_common.c
+++ b/drivers/video/exynos/exynos_mipi_dsi_common.c
@@ -153,11 +153,12 @@ static void exynos_mipi_dsi_long_data_wr(struct
mipi_dsim_device *dsim,
}
}
}
-
-int exynos_mipi_dsi_wr_data(struct mipi_dsim_device *dsim, unsigned int
data_id,
- const unsigned char *data0, unsigned int data_size)
+int exynos_mipi_dsi_wr_data(struct video_source *video_source, int data_id,
+ u8 *data0, size_t data_size)
{
unsigned int check_rx_ack = 0;
+ struct mipi_dsim_device *dsim = container_of(video_source,
+ struct mipi_dsim_device, video_source);
if (dsim->state == DSIM_STATE_ULPS) {
dev_err(dsim->dev, "state is ULPS.\n");
@@ -340,12 +341,14 @@ static unsigned int
exynos_mipi_dsi_response_size(unsigned int req_size)
}
}
-int exynos_mipi_dsi_rd_data(struct mipi_dsim_device *dsim, unsigned int
data_id,
- unsigned int data0, unsigned int req_size, u8 *rx_buf)
+int exynos_mipi_dsi_rd_data(struct video_source *video_source, int data_id,
+ u8 data0, u8 *rx_buf,size_t req_size)
{
unsigned int rx_data, rcv_pkt, i;
u8 response = 0;
u16 rxsize;
+ struct mipi_dsim_device *dsim = container_of(video_source,
+ struct mipi_dsim_device, video_source);
if (dsim->state == DSIM_STATE_ULPS) {
dev_err(dsim->dev, "state is ULPS.\n");
@@ -843,13 +846,18 @@ int exynos_mipi_dsi_set_data_transfer_mode(struct
mipi_dsim_device *dsim,
return 0;
}
-int exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device *dsim)
+int exynos_mipi_dsi_get_frame_done_status(struct video_source *video_source)
{
+ struct mipi_dsim_device *dsim = container_of(video_source,
+ struct mipi_dsim_device, video_source);
+
return _exynos_mipi_dsi_get_frame_done_status(dsim);
}
-int exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim)
+int exynos_mipi_dsi_clear_frame_done(struct video_source *video_source)
{
+ struct mipi_dsim_device *dsim = container_of(video_source,
+ struct mipi_dsim_device, video_source);
_exynos_mipi_dsi_clear_frame_done(dsim);
return 0;
diff --git a/drivers/video/exynos/exynos_mipi_dsi_common.h
b/drivers/video/exynos/exynos_mipi_dsi_common.h
index 4125522..cd89154 100644
--- a/drivers/video/exynos/exynos_mipi_dsi_common.h
+++ b/drivers/video/exynos/exynos_mipi_dsi_common.h
@@ -18,10 +18,10 @@
static DECLARE_COMPLETION(dsim_rd_comp);
static DECLARE_COMPLETION(dsim_wr_comp);
-int exynos_mipi_dsi_wr_data(struct mipi_dsim_device *dsim, unsigned int
data_id,
- const unsigned char *data0, unsigned int data_size);
-int exynos_mipi_dsi_rd_data(struct mipi_dsim_device *dsim, unsigned int
data_id,
- unsigned int data0, unsigned int req_size, u8 *rx_buf);
+int exynos_mipi_dsi_rd_data(struct video_source *video_source, int data_id,
+ u8 data0, u8 *rx_buf,size_t req_size);
+int exynos_mipi_dsi_wr_data(struct video_source *video_source, int data_id,
+ u8 *data0, size_t data_size);
irqreturn_t exynos_mipi_dsi_interrupt_handler(int irq, void *dev_id);
void exynos_mipi_dsi_init_interrupt(struct mipi_dsim_device *dsim);
int exynos_mipi_dsi_init_dsim(struct mipi_dsim_device *dsim);
@@ -35,8 +35,8 @@ int exynos_mipi_dsi_set_data_transfer_mode(struct
mipi_dsim_device *dsim,
unsigned int mode);
int exynos_mipi_dsi_enable_frame_done_int(struct mipi_dsim_device *dsim,
unsigned int enable);
-int exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device *dsim);
-int exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim);
+int exynos_mipi_dsi_get_frame_done_status(struct video_source *video_source);
+int exynos_mipi_dsi_clear_frame_done(struct video_source *video_source);
extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
diff --git a/include/video/exynos_mipi_dsim.h b/include/video/exynos_mipi_dsim.h
index 83ce5e6..e50438e 100644
--- a/include/video/exynos_mipi_dsim.h
+++ b/include/video/exynos_mipi_dsim.h
@@ -17,7 +17,7 @@
#include <linux/device.h>
#include <linux/fb.h>
-
+#include <video/display.h>
#define PANEL_NAME_SIZE (32)
/*
@@ -225,9 +225,8 @@ struct mipi_dsim_device {
unsigned int irq;
void __iomem *reg_base;
struct mutex lock;
-
+ struct video_source video_source;
struct mipi_dsim_config *dsim_config;
- struct mipi_dsim_master_ops *master_ops;
struct mipi_dsim_lcd_device *dsim_lcd_dev;
struct mipi_dsim_lcd_driver *dsim_lcd_drv;
--
1.7.9.5
--
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