From patchwork Tue May 2 08:16:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13228586 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0B81BC7EE29 for ; Tue, 2 May 2023 08:18:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=SfMS0/opF5o/6ihjasCKGshxxCzW1jCj8rqQ906AJPI=; b=vvTi3/abnXA/uk 9Vyu3E+XiDCUP3hK5f9L182OwetCjtRY5jknSfN/tr2rX8j5+PlCZjWp9cAx7ZbJH+v/TsJ+r2Hsk mRT/T/6xX8C0Ca/sarnWkwV0V6mFLZHR004oF+6uHzfOWAwAJCNe5PXbMiON6S1TrgXofr5byVVrE DS7CWQe2MikqHTuJZlhWdgibzzQsZeuDao1SPkZBwKb08pLxL9de+yRoVzfsg4Vcir1pNthhb2Flo txOYoipB/hyWQuu/t8K0CwVoYF/UC0AJT5chg8l8jzVD9/SeTCq0gDzoDQKPaFOQES944NcxXCoi7 wTZsE7Gw6awzSjdd/LUA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ptlCD-000a5P-0M; Tue, 02 May 2023 08:17:13 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1ptlC3-000ZvO-1W; Tue, 02 May 2023 08:17:06 +0000 Received: from IcarusMOD.eternityproject.eu (unknown [IPv6:2001:b07:2ed:14ed:c5f8:7372:f042:90a2]) (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 4D73A6605637; Tue, 2 May 2023 09:16:58 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1683015419; bh=HywR8peSLWSmlFtRRE//RC7xrDtNrj/vD92+Cy0hpBY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gwgKhvMqoxfoRStoA3il4cVJAODu8Y0gTSwlOFrljg6QH2bOVSOFSbNsRhv6yEFbt afCtT2rqzd1AKakjqECXY4p48jOTxDID2TPOhEsi5DtU8LfgR7rQVh1uy+Lbpedklo o1whPn9qoo/AT5kSLGPF7LFuHbPISxc7r3L5dRXaY7g+Jxw2HPruAgHHVwGPsUz/y1 YTdi5EnUi0Y3P3YFSzy0vvPgDPrkPwLqzNxpbv7By58iXEv6pFNo/vVh3EC3cSoydi rP2sMr9yo64EN8fvTdR39KZ/UgsTC8qWC1rfoxk9Pi9+lVbYPosA1nTrw4M8N2THY7 vtTW8gTmTbq1Q== 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, "Jason-JH . Lin" Subject: [PATCH 03/11] drm/mediatek: gamma: Support SoC specific LUT size Date: Tue, 2 May 2023 10:16:42 +0200 Message-Id: <20230502081650.25947-4-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230502081650.25947-1-angelogioacchino.delregno@collabora.com> References: <20230502081650.25947-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230502_011703_794598_A5DD6AD4 X-CRM114-Status: GOOD ( 20.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Newer SoCs support a bigger Gamma LUT table: wire up a callback to retrieve the correct LUT size for each different Gamma IP. Co-developed-by: Jason-JH.Lin Signed-off-by: Jason-JH.Lin [Angelo: Rewritten commit message/description + porting] Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 + drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 25 ++++++++++++++++++--- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 4 ++-- drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 1 - drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 9 ++++++++ 5 files changed, 34 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index 75045932353e..e554b19f4830 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -53,6 +53,7 @@ void mtk_gamma_clk_disable(struct device *dev); void mtk_gamma_config(struct device *dev, unsigned int w, unsigned int h, unsigned int vrefresh, 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 drm_crtc_state *state); void mtk_gamma_start(struct device *dev); diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c index ce6f2499b891..d194d9bc2e2b 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -25,10 +25,12 @@ #define DISP_GAMMA_LUT 0x0700 #define LUT_10BIT_MASK 0x03ff +#define LUT_SIZE_DEFAULT 512 /* for setting gamma lut from AAL */ struct mtk_disp_gamma_data { bool has_dither; bool lut_diff; + u16 lut_size; }; /* @@ -55,6 +57,17 @@ void mtk_gamma_clk_disable(struct device *dev) clk_disable_unprepare(gamma->clk); } +unsigned int mtk_gamma_get_lut_size(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + unsigned int lut_size = LUT_SIZE_DEFAULT; + + if (gamma && gamma->data) + lut_size = gamma->data->lut_size; + + return lut_size; +} + void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crtc_state *state) { struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); @@ -62,6 +75,7 @@ void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crt struct drm_color_lut *lut; void __iomem *lut_base; bool lut_diff; + u16 lut_size; u32 word; u32 diff[3] = {0}; @@ -69,17 +83,20 @@ void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crt if (!state->gamma_lut) return; - if (gamma && gamma->data) + if (gamma && gamma->data) { lut_diff = gamma->data->lut_diff; - else + lut_size = gamma->data->lut_size; + } else { lut_diff = false; + lut_size = LUT_SIZE_DEFAULT; + } reg = readl(regs + DISP_GAMMA_CFG); reg = reg | GAMMA_LUT_EN; writel(reg, regs + DISP_GAMMA_CFG); lut_base = regs + DISP_GAMMA_LUT; lut = (struct drm_color_lut *)state->gamma_lut->data; - for (i = 0; i < MTK_LUT_SIZE; i++) { + for (i = 0; i < lut_size; i++) { if (!lut_diff || (i % 2 == 0)) { word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) + (((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) + @@ -196,10 +213,12 @@ static int mtk_disp_gamma_remove(struct platform_device *pdev) static const struct mtk_disp_gamma_data mt8173_gamma_driver_data = { .has_dither = true, + .lut_size = 512, }; static const struct mtk_disp_gamma_data mt8183_gamma_driver_data = { .lut_diff = true, + .lut_size = 512, }; static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = { diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index d40142842f85..0df62b076f49 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -958,8 +958,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, mtk_crtc->ddp_comp[i] = comp; if (comp->funcs) { - if (comp->funcs->gamma_set) - gamma_lut_size = MTK_LUT_SIZE; + if (comp->funcs->gamma_set && comp->funcs->gamma_get_lut_size) + gamma_lut_size = mtk_ddp_gamma_get_lut_size(comp); if (comp->funcs->ctm_set) has_ctm = true; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h index 3e9046993d09..b2e50292e57d 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h @@ -10,7 +10,6 @@ #include "mtk_drm_ddp_comp.h" #include "mtk_drm_plane.h" -#define MTK_LUT_SIZE 512 #define MTK_MAX_BPC 10 #define MTK_MIN_BPC 3 diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index febcaeef16a1..c1355960e195 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -67,6 +67,7 @@ struct mtk_ddp_comp_funcs { void (*layer_config)(struct device *dev, unsigned int idx, struct mtk_plane_state *state, struct cmdq_pkt *cmdq_pkt); + unsigned int (*gamma_get_lut_size)(struct device *dev); void (*gamma_set)(struct device *dev, struct drm_crtc_state *state); void (*bgclr_in_on)(struct device *dev); @@ -186,6 +187,14 @@ static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp, comp->funcs->layer_config(comp->dev, idx, state, cmdq_pkt); } +static inline unsigned int mtk_ddp_gamma_get_lut_size(struct mtk_ddp_comp *comp) +{ + if (comp->funcs && comp->funcs->gamma_get_lut_size) + return comp->funcs->gamma_get_lut_size(comp->dev); + + return 0; +} + static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp, struct drm_crtc_state *state) {