From nobody Thu Nov 14 16:56:31 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DFF1C04E69 for ; Thu, 3 Aug 2023 11:03:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234588AbjHCLDU (ORCPT ); Thu, 3 Aug 2023 07:03:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41166 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235220AbjHCLCb (ORCPT ); Thu, 3 Aug 2023 07:02:31 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9CB753A86 for ; Thu, 3 Aug 2023 04:02:29 -0700 (PDT) Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id DD66366071A8; Thu, 3 Aug 2023 12:02:27 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1691060548; bh=+ZT9MVxsyo6MHu8EY6ZlJn7amkAtw1lByyRkv1lq5z0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GMnO9OgiJ0yWnys1nyBEBTPKtVk8VnZu2hxmyf/teT97LbrBaLiXF/Ak7YQkuYbJL LkGsk3owPZ3ukdh152BsQmCZo3QnvzDkrpPfAITQyssjyvUf9gisXPisTOrk3fEoGR NI2/os9Bf6nnxlkBynKhGobN1pGrDDt7DtrETYisPyu2wbAj+0kOTMPnosulE2wPYz DBCeZFCVgBFEwLGQTzhBTr+3fEmjevwFfRh4L3ErteKhfOxLUe8Hs6q2OID6k8rKRk PT32VxlpwsQxCwoD0iGqVSI9rIX/4WRWdCVf0eis5hd9owPhzoTDbgMjj5txUBU2fc +ne/d3q3O8YEA== From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, wenst@chromium.org, kernel@collabora.com, ehristev@collabora.com Subject: [PATCH v9 08/16] drm/mediatek: De-commonize disp_aal/disp_gamma gamma_set functions Date: Thu, 3 Aug 2023 13:02:06 +0200 Message-ID: <20230803110214.163645-9-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230803110214.163645-1-angelogioacchino.delregno@collabora.com> References: <20230803110214.163645-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" In preparation for adding a 12-bits gamma support for the DISP_GAMMA IP, remove the mtk_gamma_set_common() function and move the relevant bits in mtk_gamma_set() for DISP_GAMMA and mtk_aal_gamma_set() for DISP_AAL: since the latter has no more support for gamma manipulation (being moved to a different IP) in newer revisions, those functions are about to diverge and it makes no sense to keep a common one (with all the complications of passing common data and making exclusions for device driver data) for just a few bits. This commit brings no functional changes. Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_disp_aal.c | 43 ++++++++++++++++++++--- drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 - drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 34 ++++-------------- 3 files changed, 46 insertions(+), 32 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_aal.c b/drivers/gpu/drm/medi= atek/mtk_disp_aal.c index 05790b444e17..21b25470e9b7 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_aal.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_aal.c @@ -17,10 +17,18 @@ =20 #define DISP_AAL_EN 0x0000 #define AAL_EN BIT(0) +#define DISP_AAL_CFG 0x0020 +#define AAL_RELAY_MODE BIT(0) +#define AAL_GAMMA_LUT_EN BIT(1) #define DISP_AAL_SIZE 0x0030 #define DISP_AAL_SIZE_HSIZE GENMASK(28, 16) #define DISP_AAL_SIZE_VSIZE GENMASK(12, 0) #define DISP_AAL_OUTPUT_SIZE 0x04d8 +#define DISP_AAL_GAMMA_LUT 0x0700 +#define DISP_AAL_GAMMA_LUT_R GENMASK(29, 20) +#define DISP_AAL_GAMMA_LUT_G GENMASK(19, 10) +#define DISP_AAL_GAMMA_LUT_B GENMASK(9, 0) +#define DISP_AAL_LUT_BITS 10 #define DISP_AAL_LUT_SIZE 512 =20 struct mtk_disp_aal_data { @@ -60,8 +68,8 @@ void mtk_aal_config(struct device *dev, unsigned int w, struct mtk_disp_aal *aal =3D dev_get_drvdata(dev); u32 sz; =20 - sz =3D FIELD_PREP(DISP_GAMMA_SIZE_HSIZE, w); - sz |=3D FIELD_PREP(DISP_GAMMA_SIZE_VSIZE, h); + sz =3D FIELD_PREP(DISP_AAL_SIZE_HSIZE, w); + sz |=3D FIELD_PREP(DISP_AAL_SIZE_VSIZE, h); =20 mtk_ddp_write(cmdq_pkt, sz, &aal->cmdq_reg, aal->regs, DISP_AAL_SIZE); mtk_ddp_write(cmdq_pkt, sz, &aal->cmdq_reg, aal->regs, DISP_AAL_OUTPUT_SI= ZE); @@ -85,9 +93,36 @@ unsigned int mtk_aal_gamma_get_lut_size(struct device *d= ev) void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state) { struct mtk_disp_aal *aal =3D dev_get_drvdata(dev); + struct drm_color_lut *lut; + unsigned int i; + u32 cfg_val; + + /* If gamma is not supported in AAL, go out immediately */ + if (!(aal->data && aal->data->has_gamma)) + return; + + /* Also, if there's no gamma lut there's nothing to do here. */ + if (!state->gamma_lut) + return; + + cfg_val =3D readl(aal->regs + DISP_AAL_CFG); + lut =3D (struct drm_color_lut *)state->gamma_lut->data; + + for (i =3D 0; i < DISP_AAL_LUT_SIZE; i++) { + struct drm_color_lut hwlut =3D { + .red =3D drm_color_lut_extract(lut[i].red, DISP_AAL_LUT_BITS), + .green =3D drm_color_lut_extract(lut[i].green, DISP_AAL_LUT_BITS), + .blue =3D drm_color_lut_extract(lut[i].blue, DISP_AAL_LUT_BITS) + }; + u32 word; + + word =3D FIELD_PREP(DISP_AAL_GAMMA_LUT_R, hwlut.red); + word |=3D FIELD_PREP(DISP_AAL_GAMMA_LUT_G, hwlut.green); + word |=3D FIELD_PREP(DISP_AAL_GAMMA_LUT_B, hwlut.blue); + writel(word, (aal->regs + DISP_AAL_GAMMA_LUT) + (i * 4)); + } =20 - if (aal->data && aal->data->has_gamma) - mtk_gamma_set_common(NULL, aal->regs, state); + writel(cfg_val, aal->regs + DISP_AAL_CFG); } =20 void mtk_aal_start(struct device *dev) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/medi= atek/mtk_disp_drv.h index ca377265e5eb..54d3712e2afd 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -56,7 +56,6 @@ void mtk_gamma_config(struct device *dev, unsigned int w, unsigned int bpc, struct cmdq_pkt *cmdq_pkt); unsigned int mtk_gamma_get_lut_size(struct device *dev); void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state); -void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct d= rm_crtc_state *state); void mtk_gamma_start(struct device *dev); void mtk_gamma_stop(struct device *dev); =20 diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/me= diatek/mtk_disp_gamma.c index ea91d3619716..001b98694761 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -73,42 +73,29 @@ unsigned int mtk_gamma_get_lut_size(struct device *dev) return LUT_SIZE_DEFAULT; } =20 -void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct d= rm_crtc_state *state) +void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state) { - struct mtk_disp_gamma *gamma; + struct mtk_disp_gamma *gamma =3D dev_get_drvdata(dev); unsigned int i; struct drm_color_lut *lut; void __iomem *lut_base; - bool lut_diff; - u16 lut_size; u32 cfg_val, word; =20 /* If there's no gamma lut there's nothing to do here. */ if (!state->gamma_lut) return; =20 - /* If we're called from AAL, dev is NULL */ - gamma =3D dev ? dev_get_drvdata(dev) : NULL; - - if (gamma && gamma->data) { - lut_diff =3D gamma->data->lut_diff; - lut_size =3D gamma->data->lut_size; - } else { - lut_diff =3D false; - lut_size =3D LUT_SIZE_DEFAULT; - } - - cfg_val =3D readl(regs + DISP_GAMMA_CFG); - lut_base =3D regs + DISP_GAMMA_LUT; + cfg_val =3D readl(gamma->regs + DISP_GAMMA_CFG); + lut_base =3D gamma->regs + DISP_GAMMA_LUT; lut =3D (struct drm_color_lut *)state->gamma_lut->data; - for (i =3D 0; i < lut_size; i++) { + for (i =3D 0; i < gamma->data->lut_size; i++) { struct drm_color_lut diff, hwlut; =20 hwlut.red =3D drm_color_lut_extract(lut[i].red, LUT_BITS_DEFAULT); hwlut.green =3D drm_color_lut_extract(lut[i].green, LUT_BITS_DEFAULT); hwlut.blue =3D drm_color_lut_extract(lut[i].blue, LUT_BITS_DEFAULT); =20 - if (!lut_diff || (i % 2 =3D=3D 0)) { + if (!gamma->data->lut_diff || (i % 2 =3D=3D 0)) { word =3D FIELD_PREP(DISP_GAMMA_LUT_10BIT_R, hwlut.red); word |=3D FIELD_PREP(DISP_GAMMA_LUT_10BIT_G, hwlut.green); word |=3D FIELD_PREP(DISP_GAMMA_LUT_10BIT_B, hwlut.blue); @@ -132,14 +119,7 @@ void mtk_gamma_set_common(struct device *dev, void __i= omem *regs, struct drm_crt /* Enable the gamma table */ cfg_val |=3D FIELD_PREP(GAMMA_LUT_EN, 1); =20 - writel(cfg_val, regs + DISP_GAMMA_CFG); -} - -void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state) -{ - struct mtk_disp_gamma *gamma =3D dev_get_drvdata(dev); - - mtk_gamma_set_common(dev, gamma->regs, state); + writel(cfg_val, gamma->regs + DISP_GAMMA_CFG); } =20 void mtk_gamma_config(struct device *dev, unsigned int w, --=20 2.41.0