Re: [PATCH] media: soc_camera: rcar_vin: Add preliminary R-Car M2 support

2013-12-26 Thread Laurent Pinchart 
Hi Valentine,

Thank you for the patch.

On Tuesday 24 December 2013 00:28:06 Valentine Barshak wrote:
 This adds R-Car M2 (R8A7791) VIN support.
 
 Signed-off-by: Valentine Barshak valentine.bars...@cogentembedded.com
 ---
  drivers/media/platform/soc_camera/rcar_vin.c | 6 --
  1 file changed, 4 insertions(+), 2 deletions(-)
 
 diff --git a/drivers/media/platform/soc_camera/rcar_vin.c
 b/drivers/media/platform/soc_camera/rcar_vin.c index 6866bb4..8b79727
 100644
 --- a/drivers/media/platform/soc_camera/rcar_vin.c
 +++ b/drivers/media/platform/soc_camera/rcar_vin.c
 @@ -106,6 +106,7 @@
  #define VIN_MAX_HEIGHT   2048
 
  enum chip_id {
 + RCAR_M2,
   RCAR_H2,

What about renaming RCAR_H2 to RCAR_GEN2 instead, and using RCAR_GEN2 for both 
r8a7790 and r8a7791 (but keeping the r8a7790-vin and r8a7791-vin device 
IDs as you've done below) ? They're identical so far (at least from what's 
implemented in the driver, you might be aware of features specific to the H2 
or M2 that are not yet supported but will be implemented in the near future).

   RCAR_H1,
   RCAR_M1,
 @@ -302,8 +303,8 @@ static int rcar_vin_setup(struct rcar_vin_priv *priv)
   dmr = 0;
   break;
   case V4L2_PIX_FMT_RGB32:
 - if (priv-chip == RCAR_H2 || priv-chip == RCAR_H1 ||
 - priv-chip == RCAR_E1) {
 + if (priv-chip == RCAR_M2 || priv-chip == RCAR_H2 ||
 + priv-chip == RCAR_H1 || priv-chip == RCAR_E1) {
   dmr = VNDMR_EXRGB;
   break;
   }
 @@ -1384,6 +1385,7 @@ static struct soc_camera_host_ops rcar_vin_host_ops =
 { };
 
  static struct platform_device_id rcar_vin_id_table[] = {
 + { r8a7791-vin,  RCAR_M2 },
   { r8a7790-vin,  RCAR_H2 },
   { r8a7779-vin,  RCAR_H1 },
   { r8a7778-vin,  RCAR_M1 },

-- 
Regards,

Laurent Pinchart

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Re: [PATCH] media: soc_camera: rcar_vin: Add preliminary R-Car M2 support

2013-12-26 Thread Valentine 

On 12/26/2013 06:18 PM, Laurent Pinchart wrote:

Hi Valentine,

Thank you for the patch.

On Tuesday 24 December 2013 00:28:06 Valentine Barshak wrote:

This adds R-Car M2 (R8A7791) VIN support.

Signed-off-by: Valentine Barshak valentine.bars...@cogentembedded.com
---
  drivers/media/platform/soc_camera/rcar_vin.c | 6 --
  1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/soc_camera/rcar_vin.c
b/drivers/media/platform/soc_camera/rcar_vin.c index 6866bb4..8b79727
100644
--- a/drivers/media/platform/soc_camera/rcar_vin.c
+++ b/drivers/media/platform/soc_camera/rcar_vin.c
@@ -106,6 +106,7 @@
  #define VIN_MAX_HEIGHT2048

  enum chip_id {
+   RCAR_M2,
RCAR_H2,


What about renaming RCAR_H2 to RCAR_GEN2 instead, and using RCAR_GEN2 for both
r8a7790 and r8a7791 (but keeping the r8a7790-vin and r8a7791-vin device
IDs as you've done below) ? They're identical so far (at least from what's
implemented in the driver, you might be aware of features specific to the H2
or M2 that are not yet supported but will be implemented in the near future).


Yes, the driver won't see any difference at this point.
The h/w (at least the input data formats supported) seems a bit different 
though.
The M2 variant doesn't seem to support 4-bit data (AOT H2).
I'm not aware or any M2 or H2 specific features that need to be implemented in 
the near future.
I've preferred to keep them separate just in case.
I wouldn't mind to use the same (GEN2) id for both but we may need to split 
them in the future.




RCAR_H1,
RCAR_M1,
@@ -302,8 +303,8 @@ static int rcar_vin_setup(struct rcar_vin_priv *priv)
dmr = 0;
break;
case V4L2_PIX_FMT_RGB32:
-   if (priv-chip == RCAR_H2 || priv-chip == RCAR_H1 ||
-   priv-chip == RCAR_E1) {
+   if (priv-chip == RCAR_M2 || priv-chip == RCAR_H2 ||
+   priv-chip == RCAR_H1 || priv-chip == RCAR_E1) {
dmr = VNDMR_EXRGB;
break;
}
@@ -1384,6 +1385,7 @@ static struct soc_camera_host_ops rcar_vin_host_ops =
{ };

  static struct platform_device_id rcar_vin_id_table[] = {
+   { r8a7791-vin,  RCAR_M2 },
{ r8a7790-vin,  RCAR_H2 },
{ r8a7779-vin,  RCAR_H1 },
{ r8a7778-vin,  RCAR_M1 },




Thanks,
Val.
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[PATCH] media: soc_camera: rcar_vin: Add preliminary R-Car M2 support

2013-12-23 Thread Valentine Barshak 
This adds R-Car M2 (R8A7791) VIN support.

Signed-off-by: Valentine Barshak valentine.bars...@cogentembedded.com
---
 drivers/media/platform/soc_camera/rcar_vin.c | 6 --
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/soc_camera/rcar_vin.c 
b/drivers/media/platform/soc_camera/rcar_vin.c
index 6866bb4..8b79727 100644
--- a/drivers/media/platform/soc_camera/rcar_vin.c
+++ b/drivers/media/platform/soc_camera/rcar_vin.c
@@ -106,6 +106,7 @@
 #define VIN_MAX_HEIGHT 2048
 
 enum chip_id {
+   RCAR_M2,
RCAR_H2,
RCAR_H1,
RCAR_M1,
@@ -302,8 +303,8 @@ static int rcar_vin_setup(struct rcar_vin_priv *priv)
dmr = 0;
break;
case V4L2_PIX_FMT_RGB32:
-   if (priv-chip == RCAR_H2 || priv-chip == RCAR_H1 ||
-   priv-chip == RCAR_E1) {
+   if (priv-chip == RCAR_M2 || priv-chip == RCAR_H2 ||
+   priv-chip == RCAR_H1 || priv-chip == RCAR_E1) {
dmr = VNDMR_EXRGB;
break;
}
@@ -1384,6 +1385,7 @@ static struct soc_camera_host_ops rcar_vin_host_ops = {
 };
 
 static struct platform_device_id rcar_vin_id_table[] = {
+   { r8a7791-vin,  RCAR_M2 },
{ r8a7790-vin,  RCAR_H2 },
{ r8a7779-vin,  RCAR_H1 },
{ r8a7778-vin,  RCAR_M1 },
-- 
1.8.3.1

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