Le 06/01/2016 11:19, Boris Brezillon a écrit :
The display timings on old SoCs older than the sama5d4 are quite limited and prevent the use of many displays. Add support for extended timing ranges on sama5d2 and sama5d4.
Signed-off-by: Boris Brezillon boris.brezillon@free-electrons.com
Absolutely: Acked-by: Nicolas Ferre nicolas.ferre@atmel.com
Thanks.
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 24 ++++++++++++++++++------ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 6 ++++++ 2 files changed, 24 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c index d760475..66f97e1 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c @@ -50,6 +50,9 @@ static const struct atmel_hlcdc_dc_desc atmel_hlcdc_dc_at91sam9n12 = { .min_height = 0, .max_width = 1280, .max_height = 860,
- .max_spw = 0x3f,
- .max_vpw = 0x3f,
- .max_hpw = 0xff, .nlayers = ARRAY_SIZE(atmel_hlcdc_at91sam9n12_layers), .layers = atmel_hlcdc_at91sam9n12_layers,
}; @@ -134,6 +137,9 @@ static const struct atmel_hlcdc_dc_desc atmel_hlcdc_dc_at91sam9x5 = { .min_height = 0, .max_width = 800, .max_height = 600,
- .max_spw = 0x3f,
- .max_vpw = 0x3f,
- .max_hpw = 0xff, .nlayers = ARRAY_SIZE(atmel_hlcdc_at91sam9x5_layers), .layers = atmel_hlcdc_at91sam9x5_layers,
}; @@ -237,6 +243,9 @@ static const struct atmel_hlcdc_dc_desc atmel_hlcdc_dc_sama5d3 = { .min_height = 0, .max_width = 2048, .max_height = 2048,
- .max_spw = 0x3f,
- .max_vpw = 0x3f,
- .max_hpw = 0x1ff, .nlayers = ARRAY_SIZE(atmel_hlcdc_sama5d3_layers), .layers = atmel_hlcdc_sama5d3_layers,
}; @@ -320,6 +329,9 @@ static const struct atmel_hlcdc_dc_desc atmel_hlcdc_dc_sama5d4 = { .min_height = 0, .max_width = 2048, .max_height = 2048,
- .max_spw = 0xff,
- .max_vpw = 0xff,
- .max_hpw = 0x3ff, .nlayers = ARRAY_SIZE(atmel_hlcdc_sama5d4_layers), .layers = atmel_hlcdc_sama5d4_layers,
}; @@ -358,19 +370,19 @@ int atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc, int hback_porch = mode->htotal - mode->hsync_end; int hsync_len = mode->hsync_end - mode->hsync_start;
- if (hsync_len > 0x40 || hsync_len < 1)
- if (hsync_len > dc->desc->max_spw + 1 || hsync_len < 1) return MODE_HSYNC;
- if (vsync_len > 0x40 || vsync_len < 1)
- if (vsync_len > dc->desc->max_spw + 1 || vsync_len < 1) return MODE_VSYNC;
- if (hfront_porch > 0x200 || hfront_porch < 1 ||
hback_porch > 0x200 || hback_porch < 1 ||
- if (hfront_porch > dc->desc->max_hpw + 1 || hfront_porch < 1 ||
hback_porch > dc->desc->max_hpw + 1 || hback_porch < 1 || mode->hdisplay < 1)
- if (vfront_porch > 0x40 || vfront_porch < 1 ||
vback_porch > 0x40 || vback_porch < 0 ||
- if (vfront_porch > dc->desc->max_vpw + 1 || vfront_porch < 1 ||
vback_porch > dc->desc->max_vpw || vback_porch < 0 || mode->vdisplay < 1)diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h index 6a762c9..864791e 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h @@ -50,6 +50,9 @@
- @min_height: minimum height supported by the Display Controller
- @max_width: maximum width supported by the Display Controller
- @max_height: maximum height supported by the Display Controller
- @max_spw: maximum vertical/horizontal pulse width
- @max_vpw: maximum vertical back/front porch width
*/
- @max_hpw: maximum horizontal back/front porch width
- @layers: a layer description table describing available layers
- @nlayers: layer description table size
@@ -58,6 +61,9 @@ struct atmel_hlcdc_dc_desc { int min_height; int max_width; int max_height;
- int max_spw;
- int max_vpw;
- int max_hpw; const struct atmel_hlcdc_layer_desc *layers; int nlayers;
};