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@xxxxxxxxxxxxxxxx>
Reviewed-by: Stefan Agner <stefan@xxxxxxxx>
> ---
> 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);
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