From patchwork Mon May 23 21:38:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marijn Suijten X-Patchwork-Id: 12859536 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 EAD96C433FE for ; Mon, 23 May 2022 21:49:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230230AbiEWVtD (ORCPT ); Mon, 23 May 2022 17:49:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38122 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230040AbiEWVs7 (ORCPT ); Mon, 23 May 2022 17:48:59 -0400 Received: from relay02.th.seeweb.it (relay02.th.seeweb.it [IPv6:2001:4b7a:2000:18::163]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2CC926C1 for ; Mon, 23 May 2022 14:48:57 -0700 (PDT) Received: from Marijn-Arch-PC.localdomain (94-209-165-62.cable.dynamic.v4.ziggo.nl [94.209.165.62]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r1.th.seeweb.it (Postfix) with ESMTPSA id B57431FBC6; Mon, 23 May 2022 23:38:56 +0200 (CEST) From: Marijn Suijten To: phone-devel@vger.kernel.org, Stephen Boyd , Dmitry Baryshkov Cc: ~postmarketos/upstreaming@lists.sr.ht, AngeloGioacchino Del Regno , Konrad Dybcio , Martin Botka , Jami Kettunen , Marijn Suijten , Michael Turquette , Rob Clark , Abhinav Kumar , Sean Paul , David Airlie , Daniel Vetter , Rajeev Nandan , Vladimir Lypak , Arnd Bergmann , Jonathan Marek , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH 7/9] drm/msm/dsi_phy_14nm: Replace parent names with clk_hw pointers Date: Mon, 23 May 2022 23:38:35 +0200 Message-Id: <20220523213837.1016542-8-marijn.suijten@somainline.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220523213837.1016542-1-marijn.suijten@somainline.org> References: <20220523213837.1016542-1-marijn.suijten@somainline.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org parent_hw pointers are easier to manage and cheaper to use than repeatedly formatting the parent name and subsequently leaving the clk framework to perform lookups based on that name. Signed-off-by: Marijn Suijten Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c | 36 ++++++++++------------ 1 file changed, 17 insertions(+), 19 deletions(-) -- 2.36.1 diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c index 8199c53567f4..574f95ab2f22 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c @@ -764,14 +764,14 @@ static int dsi_14nm_set_usecase(struct msm_dsi_phy *phy) static struct clk_hw *pll_14nm_postdiv_register(struct dsi_pll_14nm *pll_14nm, const char *name, - const char *parent_name, + const struct clk_hw *parent_hw, unsigned long flags, u8 shift) { struct dsi_pll_14nm_postdiv *pll_postdiv; struct device *dev = &pll_14nm->phy->pdev->dev; struct clk_init_data postdiv_init = { - .parent_names = (const char *[]) { parent_name }, + .parent_hws = (const struct clk_hw *[]) { parent_hw }, .num_parents = 1, .name = name, .flags = flags, @@ -800,7 +800,7 @@ static struct clk_hw *pll_14nm_postdiv_register(struct dsi_pll_14nm *pll_14nm, static int pll_14nm_register(struct dsi_pll_14nm *pll_14nm, struct clk_hw **provided_clocks) { - char clk_name[32], parent[32], vco_name[32]; + char clk_name[32], vco_name[32]; struct clk_init_data vco_init = { .parent_data = &(const struct clk_parent_data) { .fw_name = "ref", @@ -811,7 +811,7 @@ static int pll_14nm_register(struct dsi_pll_14nm *pll_14nm, struct clk_hw **prov .ops = &clk_ops_dsi_pll_14nm_vco, }; struct device *dev = &pll_14nm->phy->pdev->dev; - struct clk_hw *hw; + struct clk_hw *hw, *n1_postdiv, *n1_postdivby2; int ret; DBG("DSI%d", pll_14nm->phy->id); @@ -824,48 +824,46 @@ static int pll_14nm_register(struct dsi_pll_14nm *pll_14nm, struct clk_hw **prov return ret; snprintf(clk_name, 32, "dsi%dn1_postdiv_clk", pll_14nm->phy->id); - snprintf(parent, 32, "dsi%dvco_clk", pll_14nm->phy->id); /* N1 postdiv, bits 0-3 in REG_DSI_14nm_PHY_CMN_CLK_CFG0 */ - hw = pll_14nm_postdiv_register(pll_14nm, clk_name, parent, - CLK_SET_RATE_PARENT, 0); - if (IS_ERR(hw)) - return PTR_ERR(hw); + n1_postdiv = pll_14nm_postdiv_register(pll_14nm, clk_name, + &pll_14nm->clk_hw, CLK_SET_RATE_PARENT, 0); + if (IS_ERR(n1_postdiv)) + return PTR_ERR(n1_postdiv); snprintf(clk_name, 32, "dsi%dpllbyte", pll_14nm->phy->id); - snprintf(parent, 32, "dsi%dn1_postdiv_clk", pll_14nm->phy->id); /* DSI Byte clock = VCO_CLK / N1 / 8 */ - hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent, - CLK_SET_RATE_PARENT, 1, 8); + hw = devm_clk_hw_register_fixed_factor_parent_hw(dev, clk_name, + n1_postdiv, CLK_SET_RATE_PARENT, 1, 8); if (IS_ERR(hw)) return PTR_ERR(hw); provided_clocks[DSI_BYTE_PLL_CLK] = hw; snprintf(clk_name, 32, "dsi%dn1_postdivby2_clk", pll_14nm->phy->id); - snprintf(parent, 32, "dsi%dn1_postdiv_clk", pll_14nm->phy->id); /* * Skip the mux for now, force DSICLK_SEL to 1, Add a /2 divider * on the way. Don't let it set parent. */ - hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent, 0, 1, 2); - if (IS_ERR(hw)) - return PTR_ERR(hw); + n1_postdivby2 = devm_clk_hw_register_fixed_factor_parent_hw(dev, + clk_name, n1_postdiv, 0, 1, 2); + if (IS_ERR(n1_postdivby2)) + return PTR_ERR(n1_postdivby2); snprintf(clk_name, 32, "dsi%dpll", pll_14nm->phy->id); - snprintf(parent, 32, "dsi%dn1_postdivby2_clk", pll_14nm->phy->id); /* DSI pixel clock = VCO_CLK / N1 / 2 / N2 * This is the output of N2 post-divider, bits 4-7 in * REG_DSI_14nm_PHY_CMN_CLK_CFG0. Don't let it set parent. */ - hw = pll_14nm_postdiv_register(pll_14nm, clk_name, parent, 0, 4); + hw = pll_14nm_postdiv_register(pll_14nm, clk_name, n1_postdivby2, + 0, 4); if (IS_ERR(hw)) return PTR_ERR(hw); - provided_clocks[DSI_PIXEL_PLL_CLK] = hw; + provided_clocks[DSI_PIXEL_PLL_CLK] = hw; return 0; }