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drm: atmel-hlcdc: add vertical and horizontal scaling support for XLCDC

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Update the vertical and horizontal scaler registers of XLCDC IP
with Bilinear and Bicubic co-efficients taps for Chroma and
Luma componenets of the Pixel.

Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240424053351.589830-7-manikandan.m@microchip.com
This commit is contained in:
Manikandan Muralidharan 2024-04-24 11:03:49 +05:30 committed by Sam Ravnborg
parent 0af86604e3
commit 391acbc689
2 changed files with 24 additions and 0 deletions
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4
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
View File

@ -198,6 +198,8 @@
* @disc_pos: discard area position register
* @disc_size: discard area size register
* @csc: color space conversion register
* @vxs_config: vertical scalar filter taps control register
* @hxs_config: horizontal scalar filter taps control register
*/
struct atmel_hlcdc_layer_cfg_layout {
int xstride[ATMEL_HLCDC_LAYER_MAX_PLANES];
@ -217,6 +219,8 @@ struct atmel_hlcdc_layer_cfg_layout {
int disc_pos;
int disc_size;
int csc;
int vxs_config;
int hxs_config;
};
/**

20
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
View File

@ -966,6 +966,26 @@ static void atmel_xlcdc_csc_init(struct atmel_hlcdc_plane *plane,
desc->layout.csc + i,
xlcdc_csc_coeffs[i]);
}
if (desc->layout.vxs_config && desc->layout.hxs_config) {
/*
* Updating vxs.config and hxs.config fixes the
* Green Color Issue in SAM9X7 EGT Video Player App
*/
atmel_hlcdc_layer_write_cfg(&plane->layer,
desc->layout.vxs_config,
ATMEL_XLCDC_LAYER_VXSYCFG_ONE |
ATMEL_XLCDC_LAYER_VXSYTAP2_ENABLE |
ATMEL_XLCDC_LAYER_VXSCCFG_ONE |
ATMEL_XLCDC_LAYER_VXSCTAP2_ENABLE);
atmel_hlcdc_layer_write_cfg(&plane->layer,
desc->layout.hxs_config,
ATMEL_XLCDC_LAYER_HXSYCFG_ONE |
ATMEL_XLCDC_LAYER_HXSYTAP2_ENABLE |
ATMEL_XLCDC_LAYER_HXSCCFG_ONE |
ATMEL_XLCDC_LAYER_HXSCTAP2_ENABLE);
}
}
static int atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane)