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Sun, 16 Feb 2025 13:39:13 -0500 (EST) From: Ryan Walklin To: Maxime Ripard , Chen-Yu Tsai , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jernej Skrabec , Samuel Holland , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michael Turquette , Stephen Boyd Cc: Andre Przywara , Chris Morgan , Hironori KIKUCHI , Philippe Simons , Dmitry Baryshkov , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, Ryan Walklin Subject: [PATCH v7 13/27] drm: sun4i: support YUV formats in VI scaler Date: Mon, 17 Feb 2025 07:36:13 +1300 Message-ID: <20250216183710.8443-14-ryan@testtoast.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250216183710.8443-3-ryan@testtoast.com> References: <20250216183710.8443-3-ryan@testtoast.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Jernej Skrabec Now that YUV formats are available, enable support in the VI scaler. Signed-off-by: Jernej Skrabec Signed-off-by: Ryan Walklin Changelog v4..v5: - Add commit description --- drivers/gpu/drm/sun4i/sun8i_vi_scaler.c | 85 +++++++++++++++++-------- 1 file changed, 58 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c index 7ba75011adf9f..2e49a6e5f1f1c 100644 --- a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c +++ b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c @@ -843,6 +843,11 @@ static u32 sun8i_vi_scaler_base(struct sun8i_mixer *mixer, int channel) DE2_VI_SCALER_UNIT_SIZE * channel; } +static bool sun8i_vi_scaler_is_vi_plane(struct sun8i_mixer *mixer, int channel) +{ + return true; +} + static int sun8i_vi_scaler_coef_index(unsigned int step) { unsigned int scale, int_part, float_part; @@ -867,44 +872,65 @@ static int sun8i_vi_scaler_coef_index(unsigned int step) } } -static void sun8i_vi_scaler_set_coeff(struct regmap *map, u32 base, - u32 hstep, u32 vstep, - const struct drm_format_info *format) +static void sun8i_vi_scaler_set_coeff_vi(struct regmap *map, u32 base, + u32 hstep, u32 vstep, + const struct drm_format_info *format) { const u32 *ch_left, *ch_right, *cy; - int offset, i; + int offset; - if (format->hsub == 1 && format->vsub == 1) { - ch_left = lan3coefftab32_left; - ch_right = lan3coefftab32_right; - cy = lan2coefftab32; - } else { + if (format->is_yuv) { ch_left = bicubic8coefftab32_left; ch_right = bicubic8coefftab32_right; cy = bicubic4coefftab32; + } else { + ch_left = lan3coefftab32_left; + ch_right = lan3coefftab32_right; + cy = lan2coefftab32; } offset = sun8i_vi_scaler_coef_index(hstep) * SUN8I_VI_SCALER_COEFF_COUNT; - for (i = 0; i < SUN8I_VI_SCALER_COEFF_COUNT; i++) { - regmap_write(map, SUN8I_SCALER_VSU_YHCOEFF0(base, i), - lan3coefftab32_left[offset + i]); - regmap_write(map, SUN8I_SCALER_VSU_YHCOEFF1(base, i), - lan3coefftab32_right[offset + i]); - regmap_write(map, SUN8I_SCALER_VSU_CHCOEFF0(base, i), - ch_left[offset + i]); - regmap_write(map, SUN8I_SCALER_VSU_CHCOEFF1(base, i), - ch_right[offset + i]); - } + regmap_bulk_write(map, SUN8I_SCALER_VSU_YHCOEFF0(base, 0), + &lan3coefftab32_left[offset], + SUN8I_VI_SCALER_COEFF_COUNT); + regmap_bulk_write(map, SUN8I_SCALER_VSU_YHCOEFF1(base, 0), + &lan3coefftab32_right[offset], + SUN8I_VI_SCALER_COEFF_COUNT); + regmap_bulk_write(map, SUN8I_SCALER_VSU_CHCOEFF0(base, 0), + &ch_left[offset], SUN8I_VI_SCALER_COEFF_COUNT); + regmap_bulk_write(map, SUN8I_SCALER_VSU_CHCOEFF1(base, 0), + &ch_right[offset], SUN8I_VI_SCALER_COEFF_COUNT); offset = sun8i_vi_scaler_coef_index(hstep) * SUN8I_VI_SCALER_COEFF_COUNT; - for (i = 0; i < SUN8I_VI_SCALER_COEFF_COUNT; i++) { - regmap_write(map, SUN8I_SCALER_VSU_YVCOEFF(base, i), - lan2coefftab32[offset + i]); - regmap_write(map, SUN8I_SCALER_VSU_CVCOEFF(base, i), - cy[offset + i]); - } + regmap_bulk_write(map, SUN8I_SCALER_VSU_YVCOEFF(base, 0), + &lan2coefftab32[offset], SUN8I_VI_SCALER_COEFF_COUNT); + regmap_bulk_write(map, SUN8I_SCALER_VSU_CVCOEFF(base, 0), + &cy[offset], SUN8I_VI_SCALER_COEFF_COUNT); +} + +static void sun8i_vi_scaler_set_coeff_ui(struct regmap *map, u32 base, + u32 hstep, u32 vstep, + const struct drm_format_info *format) +{ + const u32 *table; + int offset; + + offset = sun8i_vi_scaler_coef_index(hstep) * + SUN8I_VI_SCALER_COEFF_COUNT; + regmap_bulk_write(map, SUN8I_SCALER_VSU_YHCOEFF0(base, 0), + &lan2coefftab32[offset], SUN8I_VI_SCALER_COEFF_COUNT); + offset = sun8i_vi_scaler_coef_index(vstep) * + SUN8I_VI_SCALER_COEFF_COUNT; + regmap_bulk_write(map, SUN8I_SCALER_VSU_YVCOEFF(base, 0), + &lan2coefftab32[offset], SUN8I_VI_SCALER_COEFF_COUNT); + + table = format->is_yuv ? bicubic4coefftab32 : lan2coefftab32; + offset = sun8i_vi_scaler_coef_index(hstep) * + SUN8I_VI_SCALER_COEFF_COUNT; + regmap_bulk_write(map, SUN8I_SCALER_VSU_CHCOEFF0(base, 0), + &table[offset], SUN8I_VI_SCALER_COEFF_COUNT); } void sun8i_vi_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable) @@ -994,6 +1020,11 @@ void sun8i_vi_scaler_setup(struct sun8i_mixer *mixer, int layer, SUN8I_SCALER_VSU_CHPHASE(base), chphase); regmap_write(mixer->engine.regs, SUN8I_SCALER_VSU_CVPHASE(base), cvphase); - sun8i_vi_scaler_set_coeff(mixer->engine.regs, base, - hscale, vscale, format); + + if (sun8i_vi_scaler_is_vi_plane(mixer, layer)) + sun8i_vi_scaler_set_coeff_vi(mixer->engine.regs, base, + hscale, vscale, format); + else + sun8i_vi_scaler_set_coeff_ui(mixer->engine.regs, base, + hscale, vscale, format); }