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media: imx-pxp: detect PXP version

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Different versions of the Pixel Pipeline have different blocks and their
routing may be different. Read the PXP_HW_VERSION register to determine
the version of the PXP and print it to the log for debugging purposes.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Michael Tretter 2023-01-13 10:54:08 +01:00 committed by Mauro Carvalho Chehab
parent 3ac7165d72
commit a4a69d1386
1 changed files with 11 additions and 0 deletions
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11
drivers/media/platform/nxp/imx-pxp.c
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@ -10,6 +10,7 @@
* Pawel Osciak, <pawel@osciak.com>
* Marek Szyprowski, <m.szyprowski@samsung.com>
*/
#include <linux/bitfield.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
@ -52,6 +53,11 @@ MODULE_PARM_DESC(debug, "activates debug info");
#define MEM2MEM_HFLIP (1 << 0)
#define MEM2MEM_VFLIP (1 << 1)
#define PXP_VERSION_MAJOR(version) \
FIELD_GET(BM_PXP_VERSION_MAJOR, version)
#define PXP_VERSION_MINOR(version) \
FIELD_GET(BM_PXP_VERSION_MINOR, version)
#define dprintk(dev, fmt, arg...) \
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg)
@ -1664,6 +1670,7 @@ static int pxp_probe(struct platform_device *pdev)
{
struct pxp_dev *dev;
struct video_device *vfd;
u32 hw_version;
int irq;
int ret;
@ -1705,6 +1712,10 @@ static int pxp_probe(struct platform_device *pdev)
goto err_clk;
}
hw_version = readl(dev->mmio + HW_PXP_VERSION);
dev_dbg(&pdev->dev, "PXP Version %u.%u\n",
PXP_VERSION_MAJOR(hw_version), PXP_VERSION_MINOR(hw_version));
ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
if (ret)
goto err_clk;