[PATCH 1/2] [RFC] video: exynos mipi dsi: Making Exynos MIPI Complaint with CDF
Vikas Sajjan
sajjan.linux at gmail.com
Thu Jan 3 00:30:30 PST 2013
Hi Sachin,
Thanks for the comments.
On Thu, Jan 3, 2013 at 11:14 AM, Sachin Kamat <sachin.kamat at linaro.org> wrote:
> Hi Vikas,
>
> Some nitpicks inline
>
> Subject: s/Complaint/Compliant
>
Oops, nice catch.
> On 2 January 2013 18:47, Vikas C Sajjan <vikas.sajjan at linaro.org> wrote:
>> From: Vikas Sajjan <vikas.sajjan at linaro.org>
>>
>
> Please add some description about this patch here.
>
sure.
>> Signed-off-by: Vikas Sajjan <vikas.sajjan at linaro.org>
>> ---
>> drivers/video/exynos/exynos_mipi_dsi.c | 46 ++++++++++++++++++-------
>> 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, 56 insertions(+), 29 deletions(-)
>>
>> diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
>> index 07d70a3..88b2aa9 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;
>> @@ -111,12 +110,13 @@ 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 +139,13 @@ 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)
>> @@ -319,12 +320,19 @@ static struct mipi_dsim_ddi *exynos_mipi_dsi_bind_lcd_ddi(
>> return NULL;
>> }
>>
>> -/* 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 void panel_dsi_release(struct video_source *src)
>
> How about exynos_dsi_panel_release in line with other function names?
>
will modify.
>> +{
>> + printk("dsi entity release\n");
>
> Please use pr_* function here (instead of printk).
>
Sure.
>> +}
>> +
>> +static const struct common_video_source_ops dsi_common_ops = {
>
> Some comments for this place holder would be good.
>
>> +};
>> +
>> +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,
>> };
>> @@ -362,7 +370,6 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
>> }
>>
>> dsim->dsim_config = dsim_config;
>> - dsim->master_ops = &master_ops;
>>
>> mutex_init(&dsim->lock);
>>
>> @@ -463,6 +470,19 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
>>
>> dsim->suspended = false;
>>
>> + dsim->video_source.dev = &pdev->dev;
>> + dsim->video_source.release = panel_dsi_release;
>> + dsim->video_source.common_ops = &dsi_common_ops;
>> + dsim->video_source.ops.dsi = &exynos_dsi_ops;
>> + dsim->video_source.name = "exynos";
>
> Can't we get this from pdev?
>
right, will change accordingly.
>> +
>> + ret = video_source_register(&dsim->video_source);
>> + if (ret < 0) {
>> + printk("dsi entity register failed\n");
>
> Please use pr_* function here (instead of printk).
>
>> + goto err_bind;
>> + }
>> + printk("dsi entity registered: %p\n", &dsim->video_source);
>
> ditto.
>
>
>> + return 0;
>> done:
>> platform_set_drvdata(pdev, dsim);
>>
>> diff --git a/drivers/video/exynos/exynos_mipi_dsi_common.c b/drivers/video/exynos/exynos_mipi_dsi_common.c
>> index 3cd29a4..e59911e 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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>
>
>
> --
> With warm regards,
> Sachin
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo at vger.kernel.org
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Regards
Vikas Sajjan
Samsung Research India (SRI - Bangalore)
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