From patchwork Thu Feb 4 18:10:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= X-Patchwork-Id: 12068247 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23867C433E0 for ; Thu, 4 Feb 2021 18:11:26 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DDE6364EE2 for ; Thu, 4 Feb 2021 18:11:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DDE6364EE2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6E0F06EE1A; Thu, 4 Feb 2021 18:11:25 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 339016EE20 for ; Thu, 4 Feb 2021 18:11:24 +0000 (UTC) IronPort-SDR: bpXAqL5wcQ2Jkt7hXhcfRqCr+9uEKUymftfa6A4egM9ou6+1bFGGBcqqcDFhBP9UvRL6ZaGPsx vvcPQ8XD07LA== X-IronPort-AV: E=McAfee;i="6000,8403,9885"; a="181447768" X-IronPort-AV: E=Sophos;i="5.81,153,1610438400"; d="scan'208";a="181447768" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2021 10:11:23 -0800 IronPort-SDR: fa44XzskmXWtUBIRPljlP2r54foxwJ8wP8eBOr2MXYqua2CqR/uV2HNxvbijgNeI6ZBfwhQ1HT TrwY1y6Au8Hw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,153,1610438400"; d="scan'208";a="415267672" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.171]) by FMSMGA003.fm.intel.com with SMTP; 04 Feb 2021 10:11:21 -0800 Received: by stinkbox (sSMTP sendmail emulation); Thu, 04 Feb 2021 20:11:20 +0200 From: Ville Syrjala To: intel-gfx@lists.freedesktop.org Date: Thu, 4 Feb 2021 20:10:44 +0200 Message-Id: <20210204181048.24202-11-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210204181048.24202-1-ville.syrjala@linux.intel.com> References: <20210204181048.24202-1-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 10/14] drm/i915: Extract _cnl_ddi_{enable, disable}_clock() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lucas De Marchi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Ville Syrjälä All the DPCLKA_CFGCR handling follows a common pattern. Let's extract that to a small helper that just takes a few parameters each caller can customize. Reviewed-by: Lucas De Marchi Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/i915/display/intel_ddi.c | 108 +++++++++-------------- 1 file changed, 44 insertions(+), 64 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 0a2eb426616b..d195837f0a9f 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3127,11 +3127,37 @@ static u32 icl_dpclka_cfgcr0_clk_off(struct drm_i915_private *dev_priv, return 0; } +static void _cnl_ddi_enable_clock(struct drm_i915_private *i915, i915_reg_t reg, + u32 clk_sel_mask, u32 clk_sel, u32 clk_off) +{ + mutex_lock(&i915->dpll.lock); + + intel_de_rmw(i915, reg, clk_sel_mask, clk_sel); + + /* + * "This step and the step before must be + * done with separate register writes." + */ + intel_de_rmw(i915, reg, clk_off, 0); + + mutex_unlock(&i915->dpll.lock); +} + +static void _cnl_ddi_disable_clock(struct drm_i915_private *i915, i915_reg_t reg, + u32 clk_off) +{ + mutex_lock(&i915->dpll.lock); + + intel_de_rmw(i915, reg, 0, clk_off); + + mutex_unlock(&i915->dpll.lock); +} + static void dg1_ddi_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - struct intel_shared_dpll *pll = crtc_state->shared_dpll; + const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum phy phy = intel_port_to_phy(dev_priv, encoder->port); if (drm_WARN_ON(&dev_priv->drm, !pll)) @@ -3146,16 +3172,10 @@ static void dg1_ddi_enable_clock(struct intel_encoder *encoder, (pll->info->id >= DPLL_ID_DG1_DPLL2 && phy < PHY_C))) return; - mutex_lock(&dev_priv->dpll.lock); - - intel_de_rmw(dev_priv, DG1_DPCLKA_CFGCR0(phy), - DG1_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy), - DG1_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy)); - - intel_de_rmw(dev_priv, DG1_DPCLKA_CFGCR0(phy), - DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy), 0); - - mutex_unlock(&dev_priv->dpll.lock); + _cnl_ddi_enable_clock(dev_priv, DG1_DPCLKA_CFGCR0(phy), + DG1_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy), + DG1_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy), + DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static void dg1_ddi_disable_clock(struct intel_encoder *encoder) @@ -3163,19 +3183,15 @@ static void dg1_ddi_disable_clock(struct intel_encoder *encoder) struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum phy phy = intel_port_to_phy(dev_priv, encoder->port); - mutex_lock(&dev_priv->dpll.lock); - - intel_de_rmw(dev_priv, DG1_DPCLKA_CFGCR0(phy), - 0, DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); - - mutex_unlock(&dev_priv->dpll.lock); + _cnl_ddi_disable_clock(dev_priv, DG1_DPCLKA_CFGCR0(phy), + DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static void icl_ddi_combo_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - struct intel_shared_dpll *pll = crtc_state->shared_dpll; + const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum phy phy = intel_port_to_phy(dev_priv, encoder->port); u32 mask, sel; i915_reg_t reg; @@ -3197,24 +3213,8 @@ static void icl_ddi_combo_enable_clock(struct intel_encoder *encoder, if (drm_WARN_ON(&dev_priv->drm, !pll)) return; - mutex_lock(&dev_priv->dpll.lock); - - /* - * Even though this register references DDIs, note that we - * want to pass the PHY rather than the port (DDI). For - * ICL, port=phy in all cases so it doesn't matter, but for - * EHL the bspec notes the following: - * - * "DDID clock tied to DDIA clock, so DPCLKA_CFGCR0 DDIA - * Clock Select chooses the PLL for both DDIA and DDID and - * drives port A in all cases." - */ - intel_de_rmw(dev_priv, reg, mask, sel); - - intel_de_rmw(dev_priv, reg, - icl_dpclka_cfgcr0_clk_off(dev_priv, phy), 0); - - mutex_unlock(&dev_priv->dpll.lock); + _cnl_ddi_enable_clock(dev_priv, reg, mask, sel, + icl_dpclka_cfgcr0_clk_off(dev_priv, phy)); } static void icl_ddi_combo_disable_clock(struct intel_encoder *encoder) @@ -3223,19 +3223,13 @@ static void icl_ddi_combo_disable_clock(struct intel_encoder *encoder) enum phy phy = intel_port_to_phy(dev_priv, encoder->port); i915_reg_t reg; - mutex_lock(&dev_priv->dpll.lock); - if (IS_ALDERLAKE_S(dev_priv)) reg = ADLS_DPCLKA_CFGCR(phy); else reg = ICL_DPCLKA_CFGCR0; - mutex_lock(&dev_priv->dpll.lock); - - intel_de_rmw(dev_priv, reg, - 0, icl_dpclka_cfgcr0_clk_off(dev_priv, phy)); - - mutex_unlock(&dev_priv->dpll.lock); + _cnl_ddi_disable_clock(dev_priv, reg, + icl_dpclka_cfgcr0_clk_off(dev_priv, phy)); } static void dg1_sanitize_port_clk_off(struct drm_i915_private *dev_priv, @@ -3442,20 +3436,10 @@ static void cnl_ddi_enable_clock(struct intel_encoder *encoder, if (drm_WARN_ON(&i915->drm, !pll)) return; - mutex_lock(&i915->dpll.lock); - - intel_de_rmw(i915, DPCLKA_CFGCR0, - DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port), - DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, port)); - - /* - * "This step and the step before must be - * done with separate register writes." - */ - intel_de_rmw(i915, DPCLKA_CFGCR0, - DPCLKA_CFGCR0_DDI_CLK_OFF(port), 0); - - mutex_unlock(&i915->dpll.lock); + _cnl_ddi_enable_clock(i915, DPCLKA_CFGCR0, + DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port), + DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, port), + DPCLKA_CFGCR0_DDI_CLK_OFF(port)); } static void cnl_ddi_disable_clock(struct intel_encoder *encoder) @@ -3463,12 +3447,8 @@ static void cnl_ddi_disable_clock(struct intel_encoder *encoder) struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; - mutex_lock(&i915->dpll.lock); - - intel_de_rmw(i915, DPCLKA_CFGCR0, - 0, DPCLKA_CFGCR0_DDI_CLK_OFF(port)); - - mutex_unlock(&i915->dpll.lock); + _cnl_ddi_disable_clock(i915, DPCLKA_CFGCR0, + DPCLKA_CFGCR0_DDI_CLK_OFF(port)); } static void skl_ddi_enable_clock(struct intel_encoder *encoder,