From patchwork Wed Jun 29 22:53:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marijn Suijten X-Patchwork-Id: 12900772 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 4C273CCA47C for ; Wed, 29 Jun 2022 22:54:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231447AbiF2Wyi (ORCPT ); Wed, 29 Jun 2022 18:54:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231261AbiF2WyM (ORCPT ); Wed, 29 Jun 2022 18:54:12 -0400 Received: from relay08.th.seeweb.it (relay08.th.seeweb.it [5.144.164.169]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3E6727CF7 for ; Wed, 29 Jun 2022 15:53:55 -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 4DD373F7DC; Thu, 30 Jun 2022 00:53:53 +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 10/11] drm/msm/dsi_phy_10nm: Replace parent names with clk_hw pointers Date: Thu, 30 Jun 2022 00:53:30 +0200 Message-Id: <20220629225331.357308-11-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_10nm.c | 79 ++++++++++------------ 1 file changed, 36 insertions(+), 43 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c index 8bd7b97b1b9b..ae57f95edf63 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c @@ -574,24 +574,24 @@ static int dsi_10nm_set_usecase(struct msm_dsi_phy *phy) */ static int pll_10nm_register(struct dsi_pll_10nm *pll_10nm, struct clk_hw **provided_clocks) { - char clk_name[32], parent[32], vco_name[32]; - char parent2[32], parent3[32], parent4[32]; + char clk_name[32]; struct clk_init_data vco_init = { .parent_data = &(const struct clk_parent_data) { .fw_name = "ref", }, .num_parents = 1, - .name = vco_name, + .name = clk_name, .flags = CLK_IGNORE_UNUSED, .ops = &clk_ops_dsi_pll_10nm_vco, }; struct device *dev = &pll_10nm->phy->pdev->dev; - struct clk_hw *hw; + struct clk_hw *hw, *pll_out_div, *pll_bit, *pll_by_2_bit; + struct clk_hw *pll_post_out_div, *pclk_mux; int ret; DBG("DSI%d", pll_10nm->phy->id); - snprintf(vco_name, sizeof(vco_name), "dsi%dvco_clk", pll_10nm->phy->id); + snprintf(clk_name, sizeof(clk_name), "dsi%dvco_clk", pll_10nm->phy->id); pll_10nm->clk_hw.init = &vco_init; ret = devm_clk_hw_register(dev, &pll_10nm->clk_hw); @@ -599,36 +599,34 @@ static int pll_10nm_register(struct dsi_pll_10nm *pll_10nm, struct clk_hw **prov return ret; snprintf(clk_name, sizeof(clk_name), "dsi%d_pll_out_div_clk", pll_10nm->phy->id); - snprintf(parent, sizeof(parent), "dsi%dvco_clk", pll_10nm->phy->id); - hw = devm_clk_hw_register_divider(dev, clk_name, parent, - CLK_SET_RATE_PARENT, pll_10nm->phy->pll_base + + pll_out_div = devm_clk_hw_register_divider_parent_hw(dev, clk_name, + &pll_10nm->clk_hw, CLK_SET_RATE_PARENT, + pll_10nm->phy->pll_base + REG_DSI_10nm_PHY_PLL_PLL_OUTDIV_RATE, 0, 2, CLK_DIVIDER_POWER_OF_TWO, NULL); - if (IS_ERR(hw)) { - ret = PTR_ERR(hw); + if (IS_ERR(pll_out_div)) { + ret = PTR_ERR(pll_out_div); goto fail; } snprintf(clk_name, sizeof(clk_name), "dsi%d_pll_bit_clk", pll_10nm->phy->id); - snprintf(parent, sizeof(parent), "dsi%d_pll_out_div_clk", pll_10nm->phy->id); /* BIT CLK: DIV_CTRL_3_0 */ - hw = devm_clk_hw_register_divider(dev, clk_name, parent, - CLK_SET_RATE_PARENT, + pll_bit = devm_clk_hw_register_divider_parent_hw(dev, clk_name, + pll_out_div, CLK_SET_RATE_PARENT, pll_10nm->phy->base + REG_DSI_10nm_PHY_CMN_CLK_CFG0, 0, 4, CLK_DIVIDER_ONE_BASED, &pll_10nm->postdiv_lock); - if (IS_ERR(hw)) { - ret = PTR_ERR(hw); + if (IS_ERR(pll_bit)) { + ret = PTR_ERR(pll_bit); goto fail; } snprintf(clk_name, sizeof(clk_name), "dsi%d_phy_pll_out_byteclk", pll_10nm->phy->id); - snprintf(parent, sizeof(parent), "dsi%d_pll_bit_clk", pll_10nm->phy->id); /* DSI Byte clock = VCO_CLK / OUT_DIV / BIT_DIV / 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, + pll_bit, CLK_SET_RATE_PARENT, 1, 8); if (IS_ERR(hw)) { ret = PTR_ERR(hw); goto fail; @@ -637,48 +635,43 @@ static int pll_10nm_register(struct dsi_pll_10nm *pll_10nm, struct clk_hw **prov provided_clocks[DSI_BYTE_PLL_CLK] = hw; snprintf(clk_name, sizeof(clk_name), "dsi%d_pll_by_2_bit_clk", pll_10nm->phy->id); - snprintf(parent, sizeof(parent), "dsi%d_pll_bit_clk", pll_10nm->phy->id); - hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent, - 0, 1, 2); - if (IS_ERR(hw)) { - ret = PTR_ERR(hw); + pll_by_2_bit = devm_clk_hw_register_fixed_factor_parent_hw(dev, + clk_name, pll_bit, 0, 1, 2); + if (IS_ERR(pll_by_2_bit)) { + ret = PTR_ERR(pll_by_2_bit); goto fail; } snprintf(clk_name, sizeof(clk_name), "dsi%d_pll_post_out_div_clk", pll_10nm->phy->id); - snprintf(parent, sizeof(parent), "dsi%d_pll_out_div_clk", pll_10nm->phy->id); - hw = devm_clk_hw_register_fixed_factor(dev, clk_name, parent, - 0, 1, 4); - if (IS_ERR(hw)) { - ret = PTR_ERR(hw); + pll_post_out_div = devm_clk_hw_register_fixed_factor_parent_hw(dev, + clk_name, pll_out_div, 0, 1, 4); + if (IS_ERR(pll_post_out_div)) { + ret = PTR_ERR(pll_post_out_div); goto fail; } snprintf(clk_name, sizeof(clk_name), "dsi%d_pclk_mux", pll_10nm->phy->id); - snprintf(parent, sizeof(parent), "dsi%d_pll_bit_clk", pll_10nm->phy->id); - snprintf(parent2, sizeof(parent2), "dsi%d_pll_by_2_bit_clk", pll_10nm->phy->id); - snprintf(parent3, sizeof(parent3), "dsi%d_pll_out_div_clk", pll_10nm->phy->id); - snprintf(parent4, sizeof(parent4), "dsi%d_pll_post_out_div_clk", pll_10nm->phy->id); - - hw = devm_clk_hw_register_mux(dev, clk_name, - ((const char *[]){ - parent, parent2, parent3, parent4, + + pclk_mux = devm_clk_hw_register_mux_parent_hws(dev, clk_name, + ((const struct clk_hw *[]){ + pll_bit, + pll_by_2_bit, + pll_out_div, + pll_post_out_div, }), 4, 0, pll_10nm->phy->base + - REG_DSI_10nm_PHY_CMN_CLK_CFG1, - 0, 2, 0, NULL); - if (IS_ERR(hw)) { - ret = PTR_ERR(hw); + REG_DSI_10nm_PHY_CMN_CLK_CFG1, 0, 2, 0, NULL); + if (IS_ERR(pclk_mux)) { + ret = PTR_ERR(pclk_mux); goto fail; } snprintf(clk_name, sizeof(clk_name), "dsi%d_phy_pll_out_dsiclk", pll_10nm->phy->id); - snprintf(parent, sizeof(parent), "dsi%d_pclk_mux", pll_10nm->phy->id); /* PIX CLK DIV : DIV_CTRL_7_4*/ - hw = devm_clk_hw_register_divider(dev, clk_name, parent, 0, - pll_10nm->phy->base + REG_DSI_10nm_PHY_CMN_CLK_CFG0, + hw = devm_clk_hw_register_divider_parent_hw(dev, clk_name, pclk_mux, + 0, pll_10nm->phy->base + REG_DSI_10nm_PHY_CMN_CLK_CFG0, 4, 4, CLK_DIVIDER_ONE_BASED, &pll_10nm->postdiv_lock); if (IS_ERR(hw)) { ret = PTR_ERR(hw);