diff mbox series

[1/2] media: rockchip: rkisp1: carry ip version information

Message ID 20210111234011.3642481-2-heiko@sntech.de
State Superseded
Headers show
Series Fix the rkisp1 userspace API for later IP versions | expand

Commit Message

Heiko Stuebner Jan. 11, 2021, 11:40 p.m. UTC 
From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>

The IP block evolved from its rk3288/rk3399 base and the vendor
designates them with a numerical version. rk3399 for example
is designated V10 probably meaning V1.0.

There doesn't seem to be an actual version register we could read that
information from, so allow the match_data to carry that information
for future differentiation.

Also carry that information in the hw_revision field of the media-
controller API, so that userspace also has access to that.

The added versions are:
- V10: at least rk3288 + rk3399
- V11: seemingly unused as of now, but probably appeared in some soc
- V12: at least rk3326 + px30
- V13: at least rk1808

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
---
changes since rfc:
- move rkisp1_version enum into uapo
- show version in media-api hw_revision

 .../platform/rockchip/rkisp1/rkisp1-common.h  |  1 +
 .../platform/rockchip/rkisp1/rkisp1-dev.c     | 22 +++++++++++--------
 include/uapi/linux/rkisp1-config.h            |  7 ++++++
 3 files changed, 21 insertions(+), 9 deletions(-)

Comments

Hans Verkuil Jan. 12, 2021, 8:32 a.m. UTC | #1 
On 12/01/2021 00:40, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
> 
> The IP block evolved from its rk3288/rk3399 base and the vendor
> designates them with a numerical version. rk3399 for example
> is designated V10 probably meaning V1.0.
> 
> There doesn't seem to be an actual version register we could read that
> information from, so allow the match_data to carry that information
> for future differentiation.
> 
> Also carry that information in the hw_revision field of the media-
> controller API, so that userspace also has access to that.
> 
> The added versions are:
> - V10: at least rk3288 + rk3399
> - V11: seemingly unused as of now, but probably appeared in some soc
> - V12: at least rk3326 + px30
> - V13: at least rk1808
> 
> Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
> ---
> changes since rfc:
> - move rkisp1_version enum into uapo
> - show version in media-api hw_revision
> 
>  .../platform/rockchip/rkisp1/rkisp1-common.h  |  1 +
>  .../platform/rockchip/rkisp1/rkisp1-dev.c     | 22 +++++++++++--------
>  include/uapi/linux/rkisp1-config.h            |  7 ++++++
>  3 files changed, 21 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index 038c303a8aed..bad1bd468f2f 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -354,6 +354,7 @@ struct rkisp1_device {
>  	void __iomem *base_addr;
>  	int irq;
>  	struct device *dev;
> +	enum rkisp1_cif_isp_version isp_ver;
>  	unsigned int clk_size;
>  	struct clk_bulk_data clks[RKISP1_MAX_BUS_CLK];
>  	struct v4l2_device v4l2_dev;
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> index 68da1eed753d..f594d7cd03d0 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> @@ -104,6 +104,7 @@
>  struct rkisp1_match_data {
>  	const char * const *clks;
>  	unsigned int size;
> +	enum rkisp1_cif_isp_version isp_ver;
>  };
>  
>  /* ----------------------------------------------------------------------------
> @@ -411,15 +412,16 @@ static const char * const rk3399_isp_clks[] = {
>  	"hclk",
>  };
>  
> -static const struct rkisp1_match_data rk3399_isp_clk_data = {
> +static const struct rkisp1_match_data rk3399_isp_match_data = {
>  	.clks = rk3399_isp_clks,
>  	.size = ARRAY_SIZE(rk3399_isp_clks),
> +	.isp_ver = RKISP1_V10,
>  };
>  
>  static const struct of_device_id rkisp1_of_match[] = {
>  	{
>  		.compatible = "rockchip,rk3399-cif-isp",
> -		.data = &rk3399_isp_clk_data,
> +		.data = &rk3399_isp_match_data,
>  	},
>  	{},
>  };
> @@ -457,15 +459,15 @@ static void rkisp1_debug_init(struct rkisp1_device *rkisp1)
>  
>  static int rkisp1_probe(struct platform_device *pdev)
>  {
> -	const struct rkisp1_match_data *clk_data;
> +	const struct rkisp1_match_data *match_data;
>  	struct device *dev = &pdev->dev;
>  	struct rkisp1_device *rkisp1;
>  	struct v4l2_device *v4l2_dev;
>  	unsigned int i;
>  	int ret, irq;
>  
> -	clk_data = of_device_get_match_data(&pdev->dev);
> -	if (!clk_data)
> +	match_data = of_device_get_match_data(&pdev->dev);
> +	if (!match_data)
>  		return -ENODEV;
>  
>  	rkisp1 = devm_kzalloc(dev, sizeof(*rkisp1), GFP_KERNEL);
> @@ -494,15 +496,17 @@ static int rkisp1_probe(struct platform_device *pdev)
>  
>  	rkisp1->irq = irq;
>  
> -	for (i = 0; i < clk_data->size; i++)
> -		rkisp1->clks[i].id = clk_data->clks[i];
> -	ret = devm_clk_bulk_get(dev, clk_data->size, rkisp1->clks);
> +	for (i = 0; i < match_data->size; i++)
> +		rkisp1->clks[i].id = match_data->clks[i];
> +	ret = devm_clk_bulk_get(dev, match_data->size, rkisp1->clks);
>  	if (ret)
>  		return ret;
> -	rkisp1->clk_size = clk_data->size;
> +	rkisp1->clk_size = match_data->size;
> +	rkisp1->isp_ver = match_data->isp_ver;
>  
>  	pm_runtime_enable(&pdev->dev);
>  
> +	rkisp1->media_dev.hw_revision = rkisp1->isp_ver;

This must be documented in Documentation/media/admin-guide/rkisp1.rst.
Document that this field is used by this driver and the mapping of the
version number to SoCs.

>  	strscpy(rkisp1->media_dev.model, RKISP1_DRIVER_NAME,
>  		sizeof(rkisp1->media_dev.model));
>  	rkisp1->media_dev.dev = &pdev->dev;
> diff --git a/include/uapi/linux/rkisp1-config.h b/include/uapi/linux/rkisp1-config.h
> index 6e449e784260..bad46aadf838 100644
> --- a/include/uapi/linux/rkisp1-config.h
> +++ b/include/uapi/linux/rkisp1-config.h
> @@ -124,6 +124,13 @@
>  #define RKISP1_CIF_ISP_STAT_AFM           (1U << 2)
>  #define RKISP1_CIF_ISP_STAT_HIST          (1U << 3)
>  
> +enum rkisp1_cif_isp_version {
> +	RKISP1_V10 = 0,
> +	RKISP1_V11,
> +	RKISP1_V12,
> +	RKISP1_V13,
> +};
> +
>  enum rkisp1_cif_isp_histogram_mode {
>  	RKISP1_CIF_ISP_HISTOGRAM_MODE_DISABLE,
>  	RKISP1_CIF_ISP_HISTOGRAM_MODE_RGB_COMBINED,
> 

Regards,

	Hans
Heiko Stuebner Jan. 14, 2021, 10:50 p.m. UTC | #2 
Am Dienstag, 12. Januar 2021, 11:47:57 CET schrieb Dafna Hirschfeld:
> 

> Am 12.01.21 um 09:32 schrieb Hans Verkuil:

> > On 12/01/2021 00:40, Heiko Stuebner wrote:

> >> From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>

> >>

> >> The IP block evolved from its rk3288/rk3399 base and the vendor

> >> designates them with a numerical version. rk3399 for example

> >> is designated V10 probably meaning V1.0.

> >>

> >> There doesn't seem to be an actual version register we could read that

> >> information from, so allow the match_data to carry that information

> >> for future differentiation.

> 

> There is a register RKISP1_CIF_VI_ID.

> The datasheet I have says: "MARVIN revision ID"

> The datasheet says that the reset value is 1085'3017H


printing CIF_VI_ID on the px30 shows:
	rkisp1 ff4a0000.isp: CIF_ID 0x09305366
though I also can't guess what that should mean.


> which is also the value for the rk3399 and is described "M14_v2 id (Rel. 1.1)"

> 

> I don't how this register corresponds to the versions from

> the downstream code if at all.

> 

> The register is read and kprinted in function rkisp1_config_cif

> Could you report the value printed in the px30?

> 

> >>

> >> Also carry that information in the hw_revision field of the media-

> >> controller API, so that userspace also has access to that.

> >>

> >> The added versions are:

> >> - V10: at least rk3288 + rk3399

> >> - V11: seemingly unused as of now, but probably appeared in some soc

> >> - V12: at least rk3326 + px30

> >> - V13: at least rk1808

> >>

> >> Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>

> >> ---

> >> changes since rfc:

> >> - move rkisp1_version enum into uapo

> >> - show version in media-api hw_revision

> >>

> >>   .../platform/rockchip/rkisp1/rkisp1-common.h  |  1 +

> >>   .../platform/rockchip/rkisp1/rkisp1-dev.c     | 22 +++++++++++--------

> >>   include/uapi/linux/rkisp1-config.h            |  7 ++++++

> >>   3 files changed, 21 insertions(+), 9 deletions(-)

> >>

> >> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h

> >> index 038c303a8aed..bad1bd468f2f 100644

> >> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h

> >> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h

> >> @@ -354,6 +354,7 @@ struct rkisp1_device {

> >>   	void __iomem *base_addr;

> >>   	int irq;

> >>   	struct device *dev;

> >> +	enum rkisp1_cif_isp_version isp_ver;

> 

> I don't think we need to add this field,

> seems to be enough to set the media_dev.hw_revision


you're right, one instance in media_dev.hw_revision should be enough
Will change that in v2.

Heiko

> >>   	unsigned int clk_size;

> >>   	struct clk_bulk_data clks[RKISP1_MAX_BUS_CLK];

> >>   	struct v4l2_device v4l2_dev;

> >> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c

> >> index 68da1eed753d..f594d7cd03d0 100644

> >> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c

> >> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c

> >> @@ -104,6 +104,7 @@

> >>   struct rkisp1_match_data {

> >>   	const char * const *clks;

> >>   	unsigned int size;

> >> +	enum rkisp1_cif_isp_version isp_ver;

> >>   };

> >>   

> >>   /* ----------------------------------------------------------------------------

> >> @@ -411,15 +412,16 @@ static const char * const rk3399_isp_clks[] = {

> >>   	"hclk",

> >>   };

> >>   

> >> -static const struct rkisp1_match_data rk3399_isp_clk_data = {

> >> +static const struct rkisp1_match_data rk3399_isp_match_data = {

> >>   	.clks = rk3399_isp_clks,

> >>   	.size = ARRAY_SIZE(rk3399_isp_clks),

> >> +	.isp_ver = RKISP1_V10,

> >>   };

> >>   

> >>   static const struct of_device_id rkisp1_of_match[] = {

> >>   	{

> >>   		.compatible = "rockchip,rk3399-cif-isp",

> >> -		.data = &rk3399_isp_clk_data,

> >> +		.data = &rk3399_isp_match_data,

> >>   	},

> >>   	{},

> >>   };

> >> @@ -457,15 +459,15 @@ static void rkisp1_debug_init(struct rkisp1_device *rkisp1)

> >>   

> >>   static int rkisp1_probe(struct platform_device *pdev)

> >>   {

> >> -	const struct rkisp1_match_data *clk_data;

> >> +	const struct rkisp1_match_data *match_data;

> >>   	struct device *dev = &pdev->dev;

> >>   	struct rkisp1_device *rkisp1;

> >>   	struct v4l2_device *v4l2_dev;

> >>   	unsigned int i;

> >>   	int ret, irq;

> >>   

> >> -	clk_data = of_device_get_match_data(&pdev->dev);

> >> -	if (!clk_data)

> >> +	match_data = of_device_get_match_data(&pdev->dev);

> >> +	if (!match_data)

> >>   		return -ENODEV;

> >>   

> >>   	rkisp1 = devm_kzalloc(dev, sizeof(*rkisp1), GFP_KERNEL);

> >> @@ -494,15 +496,17 @@ static int rkisp1_probe(struct platform_device *pdev)

> >>   

> >>   	rkisp1->irq = irq;

> >>   

> >> -	for (i = 0; i < clk_data->size; i++)

> >> -		rkisp1->clks[i].id = clk_data->clks[i];

> >> -	ret = devm_clk_bulk_get(dev, clk_data->size, rkisp1->clks);

> >> +	for (i = 0; i < match_data->size; i++)

> >> +		rkisp1->clks[i].id = match_data->clks[i];

> >> +	ret = devm_clk_bulk_get(dev, match_data->size, rkisp1->clks);

> >>   	if (ret)

> >>   		return ret;

> >> -	rkisp1->clk_size = clk_data->size;

> >> +	rkisp1->clk_size = match_data->size;

> >> +	rkisp1->isp_ver = match_data->isp_ver;

> >>   

> >>   	pm_runtime_enable(&pdev->dev);

> >>   

> >> +	rkisp1->media_dev.hw_revision = rkisp1->isp_ver;

> > 

> > This must be documented in Documentation/media/admin-guide/rkisp1.rst.

> > Document that this field is used by this driver and the mapping of the

> > version number to SoCs.

> > 

> >>   	strscpy(rkisp1->media_dev.model, RKISP1_DRIVER_NAME,

> >>   		sizeof(rkisp1->media_dev.model));

> >>   	rkisp1->media_dev.dev = &pdev->dev;

> >> diff --git a/include/uapi/linux/rkisp1-config.h b/include/uapi/linux/rkisp1-config.h

> >> index 6e449e784260..bad46aadf838 100644

> >> --- a/include/uapi/linux/rkisp1-config.h

> >> +++ b/include/uapi/linux/rkisp1-config.h

> >> @@ -124,6 +124,13 @@

> >>   #define RKISP1_CIF_ISP_STAT_AFM           (1U << 2)

> >>   #define RKISP1_CIF_ISP_STAT_HIST          (1U << 3)

> >>   

> >> +enum rkisp1_cif_isp_version {

> >> +	RKISP1_V10 = 0,

> >> +	RKISP1_V11,

> >> +	RKISP1_V12,

> >> +	RKISP1_V13,

> >> +};

> >> +

> >>   enum rkisp1_cif_isp_histogram_mode {

> >>   	RKISP1_CIF_ISP_HISTOGRAM_MODE_DISABLE,

> >>   	RKISP1_CIF_ISP_HISTOGRAM_MODE_RGB_COMBINED,

> >>

> > 

> > Regards,

> > 

> > 	Hans

> > 

>
diff mbox series

Patch

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 038c303a8aed..bad1bd468f2f 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -354,6 +354,7 @@  struct rkisp1_device {
 	void __iomem *base_addr;
 	int irq;
 	struct device *dev;
+	enum rkisp1_cif_isp_version isp_ver;
 	unsigned int clk_size;
 	struct clk_bulk_data clks[RKISP1_MAX_BUS_CLK];
 	struct v4l2_device v4l2_dev;
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 68da1eed753d..f594d7cd03d0 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -104,6 +104,7 @@ 
 struct rkisp1_match_data {
 	const char * const *clks;
 	unsigned int size;
+	enum rkisp1_cif_isp_version isp_ver;
 };
 
 /* ----------------------------------------------------------------------------
@@ -411,15 +412,16 @@  static const char * const rk3399_isp_clks[] = {
 	"hclk",
 };
 
-static const struct rkisp1_match_data rk3399_isp_clk_data = {
+static const struct rkisp1_match_data rk3399_isp_match_data = {
 	.clks = rk3399_isp_clks,
 	.size = ARRAY_SIZE(rk3399_isp_clks),
+	.isp_ver = RKISP1_V10,
 };
 
 static const struct of_device_id rkisp1_of_match[] = {
 	{
 		.compatible = "rockchip,rk3399-cif-isp",
-		.data = &rk3399_isp_clk_data,
+		.data = &rk3399_isp_match_data,
 	},
 	{},
 };
@@ -457,15 +459,15 @@  static void rkisp1_debug_init(struct rkisp1_device *rkisp1)
 
 static int rkisp1_probe(struct platform_device *pdev)
 {
-	const struct rkisp1_match_data *clk_data;
+	const struct rkisp1_match_data *match_data;
 	struct device *dev = &pdev->dev;
 	struct rkisp1_device *rkisp1;
 	struct v4l2_device *v4l2_dev;
 	unsigned int i;
 	int ret, irq;
 
-	clk_data = of_device_get_match_data(&pdev->dev);
-	if (!clk_data)
+	match_data = of_device_get_match_data(&pdev->dev);
+	if (!match_data)
 		return -ENODEV;
 
 	rkisp1 = devm_kzalloc(dev, sizeof(*rkisp1), GFP_KERNEL);
@@ -494,15 +496,17 @@  static int rkisp1_probe(struct platform_device *pdev)
 
 	rkisp1->irq = irq;
 
-	for (i = 0; i < clk_data->size; i++)
-		rkisp1->clks[i].id = clk_data->clks[i];
-	ret = devm_clk_bulk_get(dev, clk_data->size, rkisp1->clks);
+	for (i = 0; i < match_data->size; i++)
+		rkisp1->clks[i].id = match_data->clks[i];
+	ret = devm_clk_bulk_get(dev, match_data->size, rkisp1->clks);
 	if (ret)
 		return ret;
-	rkisp1->clk_size = clk_data->size;
+	rkisp1->clk_size = match_data->size;
+	rkisp1->isp_ver = match_data->isp_ver;
 
 	pm_runtime_enable(&pdev->dev);
 
+	rkisp1->media_dev.hw_revision = rkisp1->isp_ver;
 	strscpy(rkisp1->media_dev.model, RKISP1_DRIVER_NAME,
 		sizeof(rkisp1->media_dev.model));
 	rkisp1->media_dev.dev = &pdev->dev;
diff --git a/include/uapi/linux/rkisp1-config.h b/include/uapi/linux/rkisp1-config.h
index 6e449e784260..bad46aadf838 100644
--- a/include/uapi/linux/rkisp1-config.h
+++ b/include/uapi/linux/rkisp1-config.h
@@ -124,6 +124,13 @@ 
 #define RKISP1_CIF_ISP_STAT_AFM           (1U << 2)
 #define RKISP1_CIF_ISP_STAT_HIST          (1U << 3)
 
+enum rkisp1_cif_isp_version {
+	RKISP1_V10 = 0,
+	RKISP1_V11,
+	RKISP1_V12,
+	RKISP1_V13,
+};
+
 enum rkisp1_cif_isp_histogram_mode {
 	RKISP1_CIF_ISP_HISTOGRAM_MODE_DISABLE,
 	RKISP1_CIF_ISP_HISTOGRAM_MODE_RGB_COMBINED,