Commit a1c046d3 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab
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media: imx: imx-mipi-csis: Add version register 



Register at offset 0x00 isn't documented, but the NXP BSP
imx8-mipi-csi2-sam driver defines it as a version register. Tests on
i.MX7D and i.MX8MP have confirmed this, with values matching the version
of the IP core specified in the respective reference manuals.

This commit doesn't make use of the version register at runtime as the
compatible strings are enough to identify the IP core version.
Nonetheless, capturing the information in register definitions that
don't affect the code negatively is useful for future development.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: default avatarRui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 0edd95f2

drivers/media/platform/nxp/imx-mipi-csis.c

+5 −0
Original line number Diff line number Diff line
@@ -46,6 +46,11 @@ 


/* Register map definition */



/* CSIS version */

#define MIPI_CSIS_VERSION			0x00

#define MIPI_CSIS_VERSION_IMX7D			0x03030505

#define MIPI_CSIS_VERSION_IMX8MP		0x03060301



/* CSIS common control */

#define MIPI_CSIS_CMN_CTRL			0x04

#define MIPI_CSIS_CMN_CTRL_UPDATE_SHADOW	BIT(16)