[PATCH 17/21] drm: mxsfb: Update internal IP version number for i.MX6SX

[Stefan Agner]

On 2020-03-09 20:52, Laurent Pinchart wrote:
> The LCDIF present in the i.MX6SX has extra features compared to
> the i.MX28. It has however lost its IP version register, so no official
> version number is known. Bump the version to MXSFB_V6 following the i.MX
> version, in preparation for support for the additional features.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

Reviewed-by: Stefan Agner <stefan at agner.ch>

> ---
>  drivers/gpu/drm/mxsfb/mxsfb_drv.c | 14 +++++++++++++-
>  1 file changed, 13 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> index 7c9a041f5f6d..2316c12c5c42 100644
> --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> @@ -35,6 +35,11 @@
>  enum mxsfb_devtype {
>  	MXSFB_V3,
>  	MXSFB_V4,
> +	/*
> +	 * Starting at i.MX6 the hardware version register is gone, use the
> +	 * i.MX family number as the version.
> +	 */
> +	MXSFB_V6,
>  };
>  
>  static const struct mxsfb_devdata mxsfb_devdata[] = {
> @@ -52,6 +57,13 @@ static const struct mxsfb_devdata mxsfb_devdata[] = {
>  		.hs_wdth_mask	= 0x3fff,
>  		.hs_wdth_shift	= 18,
>  	},
> +	[MXSFB_V6] = {
> +		.transfer_count	= LCDC_V4_TRANSFER_COUNT,
> +		.cur_buf	= LCDC_V4_CUR_BUF,
> +		.next_buf	= LCDC_V4_NEXT_BUF,
> +		.hs_wdth_mask	= 0x3fff,
> +		.hs_wdth_shift	= 18,
> +	},
>  };
>  
>  void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb)
> @@ -279,7 +291,7 @@ static struct drm_driver mxsfb_driver = {
>  static const struct platform_device_id mxsfb_devtype[] = {
>  	{ .name = "imx23-fb", .driver_data = MXSFB_V3, },
>  	{ .name = "imx28-fb", .driver_data = MXSFB_V4, },
> -	{ .name = "imx6sx-fb", .driver_data = MXSFB_V4, },
> +	{ .name = "imx6sx-fb", .driver_data = MXSFB_V6, },
>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(platform, mxsfb_devtype);