From patchwork Wed Jun 29 22:53:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marijn Suijten X-Patchwork-Id: 12900770 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 D2542C43334 for ; Wed, 29 Jun 2022 22:54:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231363AbiF2Wya (ORCPT ); Wed, 29 Jun 2022 18:54:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36576 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231131AbiF2WyI (ORCPT ); Wed, 29 Jun 2022 18:54:08 -0400 Received: from relay05.th.seeweb.it (relay05.th.seeweb.it [5.144.164.166]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D32C313AE for ; Wed, 29 Jun 2022 15:53:52 -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-r2.th.seeweb.it (Postfix) with ESMTPSA id 0F1713F7F7; Thu, 30 Jun 2022 00:53:50 +0200 (CEST) From: Marijn Suijten To: phone-devel@vger.kernel.org, Dmitry Baryshkov , Stephen Boyd 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 , 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 v3 08/11] drm/msm/dsi_phy_28nm: Replace parent names with clk_hw pointers Date: Thu, 30 Jun 2022 00:53:28 +0200 Message-Id: <20220629225331.357308-9-marijn.suijten@somainline.org> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220629225331.357308-1-marijn.suijten@somainline.org> References: <20220629225331.357308-1-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_28nm.c | 50 ++++++++++------------ 1 file changed, 23 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c index 7d3cabeca743..04411fefb808 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c @@ -519,17 +519,17 @@ static int dsi_28nm_pll_restore_state(struct msm_dsi_phy *phy) static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **provided_clocks) { - char clk_name[32], parent1[32], parent2[32], vco_name[32]; + char clk_name[32]; struct clk_init_data vco_init = { .parent_data = &(const struct clk_parent_data) { .fw_name = "ref", .name = "xo", }, .num_parents = 1, - .name = vco_name, + .name = clk_name, .flags = CLK_IGNORE_UNUSED, }; struct device *dev = &pll_28nm->phy->pdev->dev; - struct clk_hw *hw; + struct clk_hw *hw, *analog_postdiv, *indirect_path_div2, *byte_mux; int ret; DBG("%d", pll_28nm->phy->id); @@ -539,32 +539,30 @@ static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **prov else vco_init.ops = &clk_ops_dsi_pll_28nm_vco_hpm; - snprintf(vco_name, sizeof(vco_name), "dsi%dvco_clk", pll_28nm->phy->id); + snprintf(clk_name, sizeof(clk_name), "dsi%dvco_clk", pll_28nm->phy->id); pll_28nm->clk_hw.init = &vco_init; ret = devm_clk_hw_register(dev, &pll_28nm->clk_hw); if (ret) return ret; snprintf(clk_name, sizeof(clk_name), "dsi%danalog_postdiv_clk", pll_28nm->phy->id); - snprintf(parent1, sizeof(parent1), "dsi%dvco_clk", pll_28nm->phy->id); - hw = devm_clk_hw_register_divider(dev, clk_name, parent1, - CLK_SET_RATE_PARENT, pll_28nm->phy->pll_base + + analog_postdiv = devm_clk_hw_register_divider_parent_hw(dev, clk_name, + &pll_28nm->clk_hw, CLK_SET_RATE_PARENT, + pll_28nm->phy->pll_base + REG_DSI_28nm_PHY_PLL_POSTDIV1_CFG, 0, 4, 0, NULL); - if (IS_ERR(hw)) - return PTR_ERR(hw); + if (IS_ERR(analog_postdiv)) + return PTR_ERR(analog_postdiv); snprintf(clk_name, sizeof(clk_name), "dsi%dindirect_path_div2_clk", pll_28nm->phy->id); - snprintf(parent1, sizeof(parent1), "dsi%danalog_postdiv_clk", pll_28nm->phy->id); - hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent1, - CLK_SET_RATE_PARENT, 1, 2); - if (IS_ERR(hw)) - return PTR_ERR(hw); + indirect_path_div2 = devm_clk_hw_register_fixed_factor_parent_hw(dev, + clk_name, analog_postdiv, CLK_SET_RATE_PARENT, 1, 2); + if (IS_ERR(indirect_path_div2)) + return PTR_ERR(indirect_path_div2); snprintf(clk_name, sizeof(clk_name), "dsi%dpll", pll_28nm->phy->id); - snprintf(parent1, sizeof(parent1), "dsi%dvco_clk", pll_28nm->phy->id); - hw = devm_clk_hw_register_divider(dev, clk_name, parent1, 0, - pll_28nm->phy->pll_base + + hw = devm_clk_hw_register_divider_parent_hw(dev, clk_name, + &pll_28nm->clk_hw, 0, pll_28nm->phy->pll_base + REG_DSI_28nm_PHY_PLL_POSTDIV3_CFG, 0, 8, 0, NULL); if (IS_ERR(hw)) @@ -572,20 +570,18 @@ static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **prov provided_clocks[DSI_PIXEL_PLL_CLK] = hw; snprintf(clk_name, sizeof(clk_name), "dsi%dbyte_mux", pll_28nm->phy->id); - snprintf(parent1, sizeof(parent1), "dsi%dvco_clk", pll_28nm->phy->id); - snprintf(parent2, sizeof(parent2), "dsi%dindirect_path_div2_clk", pll_28nm->phy->id); - hw = devm_clk_hw_register_mux(dev, clk_name, - ((const char *[]){ - parent1, parent2, + byte_mux = devm_clk_hw_register_mux_parent_hws(dev, clk_name, + ((const struct clk_hw *[]){ + &pll_28nm->clk_hw, + indirect_path_div2, }), 2, CLK_SET_RATE_PARENT, pll_28nm->phy->pll_base + REG_DSI_28nm_PHY_PLL_VREG_CFG, 1, 1, 0, NULL); - if (IS_ERR(hw)) - return PTR_ERR(hw); + if (IS_ERR(byte_mux)) + return PTR_ERR(byte_mux); snprintf(clk_name, sizeof(clk_name), "dsi%dpllbyte", pll_28nm->phy->id); - snprintf(parent1, sizeof(parent1), "dsi%dbyte_mux", pll_28nm->phy->id); - hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent1, - CLK_SET_RATE_PARENT, 1, 4); + hw = devm_clk_hw_register_fixed_factor_parent_hw(dev, clk_name, + byte_mux, CLK_SET_RATE_PARENT, 1, 4); if (IS_ERR(hw)) return PTR_ERR(hw); provided_clocks[DSI_BYTE_PLL_CLK] = hw;