From patchwork Wed Oct 19 17:06:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dinh Nguyen X-Patchwork-Id: 617021 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 EC368C433FE for ; Wed, 19 Oct 2022 17:07:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230399AbiJSRHs (ORCPT ); Wed, 19 Oct 2022 13:07:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231504AbiJSRHq (ORCPT ); Wed, 19 Oct 2022 13:07:46 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5AAD1C2098; Wed, 19 Oct 2022 10:07:43 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id CEC7E61967; Wed, 19 Oct 2022 17:07:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 28118C433C1; Wed, 19 Oct 2022 17:07:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666199262; bh=uEKjbDD+8urYCHBuvyX9+nK0j+GP1bQnusGWwlLB/YM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=py2INVJXiCRFE23ZGAwBFqN956OtZ8nMCnBUsLZmUpX6LjeBFIdqUfe2q/SZCJOI4 60SXgFqY1+KlCjWGqCACf1EC+pVQJE84edsyVH3HkbnGY6H3+QHm6AuUZGBnuih3oC Frj9QQd37d6MgAWW/Mbzsl46csWmCZ5HF6JbobcGSfitbnbKCblH+2WQuoY10sMwbx 46uC6CN9s1WSf5JhprGSyw8YVCuqgsLuPMNhEfZQzyV39TxvFYSwHnwLheZen/tv5y 1QwunCZPOaiofwtqOcKPsVarzYF8zehKPbzSkhwMXm+74YzXKg7nLiRHvxe+U+a8Bc Hv3nMSkzfKGWw== From: Dinh Nguyen To: jh80.chung@samsung.com Cc: dinguyen@kernel.org, ulf.hansson@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com, sboyd@kernel.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCHv5 5/6] clk: socfpga: remove the setting of clk-phase for sdmmc_clk Date: Wed, 19 Oct 2022 12:06:56 -0500 Message-Id: <20221019170657.68014-6-dinguyen@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221019170657.68014-1-dinguyen@kernel.org> References: <20221019170657.68014-1-dinguyen@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Now that the SDMMC driver supports setting the clk-phase, we can remove the need to do it in the clock driver. Signed-off-by: Dinh Nguyen --- v5: new --- drivers/clk/socfpga/clk-gate-a10.c | 68 ------------------------------ drivers/clk/socfpga/clk-gate.c | 60 -------------------------- drivers/clk/socfpga/clk.h | 1 - 3 files changed, 129 deletions(-) diff --git a/drivers/clk/socfpga/clk-gate-a10.c b/drivers/clk/socfpga/clk-gate-a10.c index 738c53391e39..7cdf2f07c79b 100644 --- a/drivers/clk/socfpga/clk-gate-a10.c +++ b/drivers/clk/socfpga/clk-gate-a10.c @@ -35,59 +35,7 @@ static unsigned long socfpga_gate_clk_recalc_rate(struct clk_hw *hwclk, return parent_rate / div; } -static int socfpga_clk_prepare(struct clk_hw *hwclk) -{ - struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk); - int i; - u32 hs_timing; - u32 clk_phase[2]; - - if (socfpgaclk->clk_phase[0] || socfpgaclk->clk_phase[1]) { - for (i = 0; i < ARRAY_SIZE(clk_phase); i++) { - switch (socfpgaclk->clk_phase[i]) { - case 0: - clk_phase[i] = 0; - break; - case 45: - clk_phase[i] = 1; - break; - case 90: - clk_phase[i] = 2; - break; - case 135: - clk_phase[i] = 3; - break; - case 180: - clk_phase[i] = 4; - break; - case 225: - clk_phase[i] = 5; - break; - case 270: - clk_phase[i] = 6; - break; - case 315: - clk_phase[i] = 7; - break; - default: - clk_phase[i] = 0; - break; - } - } - - hs_timing = SYSMGR_SDMMC_CTRL_SET_AS10(clk_phase[0], clk_phase[1]); - if (!IS_ERR(socfpgaclk->sys_mgr_base_addr)) - regmap_write(socfpgaclk->sys_mgr_base_addr, - SYSMGR_SDMMCGRP_CTRL_OFFSET, hs_timing); - else - pr_err("%s: cannot set clk_phase because sys_mgr_base_addr is not available!\n", - __func__); - } - return 0; -} - static struct clk_ops gateclk_ops = { - .prepare = socfpga_clk_prepare, .recalc_rate = socfpga_gate_clk_recalc_rate, }; @@ -96,7 +44,6 @@ static void __init __socfpga_gate_init(struct device_node *node, { u32 clk_gate[2]; u32 div_reg[3]; - u32 clk_phase[2]; u32 fixed_div; struct clk_hw *hw_clk; struct socfpga_gate_clk *socfpga_clk; @@ -136,21 +83,6 @@ static void __init __socfpga_gate_init(struct device_node *node, socfpga_clk->div_reg = NULL; } - rc = of_property_read_u32_array(node, "clk-phase", clk_phase, 2); - if (!rc) { - socfpga_clk->clk_phase[0] = clk_phase[0]; - socfpga_clk->clk_phase[1] = clk_phase[1]; - - socfpga_clk->sys_mgr_base_addr = - syscon_regmap_lookup_by_compatible("altr,sys-mgr"); - if (IS_ERR(socfpga_clk->sys_mgr_base_addr)) { - pr_err("%s: failed to find altr,sys-mgr regmap!\n", - __func__); - kfree(socfpga_clk); - return; - } - } - of_property_read_string(node, "clock-output-names", &clk_name); init.name = clk_name; diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c index 53d6e3ec4309..7ea1c00a14dd 100644 --- a/drivers/clk/socfpga/clk-gate.c +++ b/drivers/clk/socfpga/clk-gate.c @@ -108,61 +108,7 @@ static unsigned long socfpga_clk_recalc_rate(struct clk_hw *hwclk, return parent_rate / div; } -static int socfpga_clk_prepare(struct clk_hw *hwclk) -{ - struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk); - struct regmap *sys_mgr_base_addr; - int i; - u32 hs_timing; - u32 clk_phase[2]; - - if (socfpgaclk->clk_phase[0] || socfpgaclk->clk_phase[1]) { - sys_mgr_base_addr = syscon_regmap_lookup_by_compatible("altr,sys-mgr"); - if (IS_ERR(sys_mgr_base_addr)) { - pr_err("%s: failed to find altr,sys-mgr regmap!\n", __func__); - return -EINVAL; - } - - for (i = 0; i < 2; i++) { - switch (socfpgaclk->clk_phase[i]) { - case 0: - clk_phase[i] = 0; - break; - case 45: - clk_phase[i] = 1; - break; - case 90: - clk_phase[i] = 2; - break; - case 135: - clk_phase[i] = 3; - break; - case 180: - clk_phase[i] = 4; - break; - case 225: - clk_phase[i] = 5; - break; - case 270: - clk_phase[i] = 6; - break; - case 315: - clk_phase[i] = 7; - break; - default: - clk_phase[i] = 0; - break; - } - } - hs_timing = SYSMGR_SDMMC_CTRL_SET(clk_phase[0], clk_phase[1]); - regmap_write(sys_mgr_base_addr, SYSMGR_SDMMCGRP_CTRL_OFFSET, - hs_timing); - } - return 0; -} - static struct clk_ops gateclk_ops = { - .prepare = socfpga_clk_prepare, .recalc_rate = socfpga_clk_recalc_rate, .get_parent = socfpga_clk_get_parent, .set_parent = socfpga_clk_set_parent, @@ -218,12 +164,6 @@ void __init socfpga_gate_init(struct device_node *node) socfpga_clk->div_reg = NULL; } - rc = of_property_read_u32_array(node, "clk-phase", clk_phase, 2); - if (!rc) { - socfpga_clk->clk_phase[0] = clk_phase[0]; - socfpga_clk->clk_phase[1] = clk_phase[1]; - } - of_property_read_string(node, "clock-output-names", &clk_name); init.name = clk_name; diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h index d80115fbdd6a..9a2fb2dde5b8 100644 --- a/drivers/clk/socfpga/clk.h +++ b/drivers/clk/socfpga/clk.h @@ -50,7 +50,6 @@ struct socfpga_gate_clk { u32 width; /* only valid if div_reg != 0 */ u32 shift; /* only valid if div_reg != 0 */ u32 bypass_shift; /* only valid if bypass_reg != 0 */ - u32 clk_phase[2]; }; struct socfpga_periph_clk {