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| author | Mihail Atanassov <mihail.atanassov@arm.com> | 2017-02-06 12:20:56 +0000 |
|---|---|---|
| committer | Liviu Dudau <Liviu.Dudau@arm.com> | 2017-04-24 13:28:08 +0100 |
| commit | 0274e6a0ba9a4994a449fcd3483ef530027e152f (patch) | |
| tree | dde8a491de30aae9a9b98c26275a5610f72979aa /drivers/gpu/drm/arm/malidp_hw.h | |
| parent | 28ce675b74742cae1c815970347267b45dc73a8a (diff) | |
| download | lwn-0274e6a0ba9a4994a449fcd3483ef530027e152f.tar.gz lwn-0274e6a0ba9a4994a449fcd3483ef530027e152f.zip | |
drm: mali-dp: Enable image enhancement when scaling
Apply image enhacement when we are upscaling by a factor of 2
or more in either direction.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Diffstat (limited to 'drivers/gpu/drm/arm/malidp_hw.h')
| -rw-r--r-- | drivers/gpu/drm/arm/malidp_hw.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/malidp_hw.h b/drivers/gpu/drm/arm/malidp_hw.h index 52a65a8a056f..a93ae0a951a3 100644 --- a/drivers/gpu/drm/arm/malidp_hw.h +++ b/drivers/gpu/drm/arm/malidp_hw.h @@ -71,6 +71,7 @@ enum malidp_scaling_coeff_set { struct malidp_se_config { u8 scale_enable : 1; + u8 enhancer_enable : 1; u8 hcoeff : 3; u8 vcoeff : 3; u8 plane_src_id; @@ -295,6 +296,25 @@ malidp_se_select_coeffs(u32 upscale_factor) #undef FP_0_50000 #undef FP_0_66667 #undef FP_1_00000 + +static inline void malidp_se_set_enh_coeffs(struct malidp_hw_device *hwdev) +{ + static const s32 enhancer_coeffs[] = { + -8, -8, -8, -8, 128, -8, -8, -8, -8 + }; + u32 val = MALIDP_SE_SET_ENH_LIMIT_LOW(MALIDP_SE_ENH_LOW_LEVEL) | + MALIDP_SE_SET_ENH_LIMIT_HIGH(MALIDP_SE_ENH_HIGH_LEVEL); + u32 image_enh = hwdev->map.se_base + + ((hwdev->map.features & MALIDP_REGMAP_HAS_CLEARIRQ) ? + 0x10 : 0xC) + MALIDP_SE_IMAGE_ENH; + u32 enh_coeffs = image_enh + MALIDP_SE_ENH_COEFF0; + int i; + + malidp_hw_write(hwdev, val, image_enh); + for (i = 0; i < ARRAY_SIZE(enhancer_coeffs); ++i) + malidp_hw_write(hwdev, enhancer_coeffs[i], enh_coeffs + i * 4); +} + /* * background color components are defined as 12bits values, * they will be shifted right when stored on hardware that |