From patchwork Tue Aug 8 18:24:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abhishek Sahu X-Patchwork-Id: 9888905 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6639E601EB for ; Tue, 8 Aug 2017 18:25:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5805428900 for ; Tue, 8 Aug 2017 18:25:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4CD8C289BE; Tue, 8 Aug 2017 18:25:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EB2E928900 for ; Tue, 8 Aug 2017 18:25:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752677AbdHHSZS (ORCPT ); Tue, 8 Aug 2017 14:25:18 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:37688 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752516AbdHHSZO (ORCPT ); Tue, 8 Aug 2017 14:25:14 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 2EE68605A8; Tue, 8 Aug 2017 18:25:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1502216713; bh=j8b7AnrmEYSxrV1H4pB22GYO4AjrdRQzvLDXlzhXTY0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PwBY0CeFaULJUN7NECqoq3SV/jpjdOez/ZN8PjKT4wDCD1aAhT87srg4FfFOSrCX4 dsYgHcywIbTv8GfVmlRqeKHLCgrypl/1WaSGeDVZw4Nnpd5hia6ZsXxwE7dx27KLxm PfIPCYCtg5okxINH5MGbJENj2sGSSrO+UWFqIIRY= Received: from absahu-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: absahu@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id DB089606B7; Tue, 8 Aug 2017 18:25:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1502216711; bh=j8b7AnrmEYSxrV1H4pB22GYO4AjrdRQzvLDXlzhXTY0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XCMjHkCZT+qgkfuuHvY6iyIkQdqN6SspHJK13hzcgyX3CUNBwSHKoDKCnCCT+sQNe eCXvOwz3oFaeeUga+xnd8l1iBxg4+z9KYTf2+1Kp0EhqNIK6sz5nWx/RPDVyMAiBuF d2g1nztZztZunhuDnsjZRUxUgr4P7ytqKLBXacNg= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org DB089606B7 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=absahu@codeaurora.org From: Abhishek Sahu To: sboyd@codeaurora.org, mturquette@baylibre.com Cc: andy.gross@linaro.org, david.brown@linaro.org, rnayak@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Abhishek Sahu Subject: [RFC v2 12/12] clk: qcom: add parent map for regmap mux Date: Tue, 8 Aug 2017 23:54:17 +0530 Message-Id: <1502216657-3342-13-git-send-email-absahu@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1502216657-3342-1-git-send-email-absahu@codeaurora.org> References: <1502216657-3342-1-git-send-email-absahu@codeaurora.org> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Currently the driver assumes the register configuration value is identical to its index in the parent map. This patch adds the parent map field in regmap mux clock node which contains the mapping of parent index with actual register configuration value. If regmap node contains this parent map then the configuration value will be taken from this parent map instead of simply writing the index value. Signed-off-by: Abhishek Sahu --- drivers/clk/qcom/clk-rcg.h | 10 ---------- drivers/clk/qcom/clk-regmap-mux.c | 6 ++++++ drivers/clk/qcom/clk-regmap-mux.h | 2 ++ drivers/clk/qcom/common.h | 11 ++++++++++- 4 files changed, 18 insertions(+), 11 deletions(-) diff --git a/drivers/clk/qcom/clk-rcg.h b/drivers/clk/qcom/clk-rcg.h index 1b3e8d2..ee66857 100644 --- a/drivers/clk/qcom/clk-rcg.h +++ b/drivers/clk/qcom/clk-rcg.h @@ -26,16 +26,6 @@ struct freq_tbl { }; /** - * struct parent_map - map table for PLL source select configuration values - * @src: source PLL - * @cfg: configuration value - */ -struct parent_map { - u8 src; - u8 cfg; -}; - -/** * struct mn - M/N:D counter * @mnctr_en_bit: bit to enable mn counter * @mnctr_reset_bit: bit to assert mn counter reset diff --git a/drivers/clk/qcom/clk-regmap-mux.c b/drivers/clk/qcom/clk-regmap-mux.c index cae3071..0f3a1bd 100644 --- a/drivers/clk/qcom/clk-regmap-mux.c +++ b/drivers/clk/qcom/clk-regmap-mux.c @@ -35,6 +35,9 @@ static u8 mux_get_parent(struct clk_hw *hw) val >>= mux->shift; val &= mask; + if (mux->parent_map) + return qcom_find_src_index(hw, mux->parent_map, val); + return val; } @@ -45,6 +48,9 @@ static int mux_set_parent(struct clk_hw *hw, u8 index) unsigned int mask = GENMASK(mux->width + mux->shift - 1, mux->shift); unsigned int val; + if (mux->parent_map) + index = mux->parent_map[index].cfg; + val = index; val <<= mux->shift; diff --git a/drivers/clk/qcom/clk-regmap-mux.h b/drivers/clk/qcom/clk-regmap-mux.h index 5cec761..7797cdd 100644 --- a/drivers/clk/qcom/clk-regmap-mux.h +++ b/drivers/clk/qcom/clk-regmap-mux.h @@ -16,11 +16,13 @@ #include #include "clk-regmap.h" +#include "common.h" struct clk_regmap_mux { u32 reg; u32 shift; u32 width; + const struct parent_map *parent_map; struct clk_regmap clkr; }; diff --git a/drivers/clk/qcom/common.h b/drivers/clk/qcom/common.h index 23c1927..00196ee 100644 --- a/drivers/clk/qcom/common.h +++ b/drivers/clk/qcom/common.h @@ -20,7 +20,6 @@ struct regmap; struct freq_tbl; struct clk_hw; -struct parent_map; #define PLL_LOCK_COUNT_SHIFT 8 #define PLL_LOCK_COUNT_MASK 0x3f @@ -39,6 +38,16 @@ struct qcom_cc_desc { size_t num_gdscs; }; +/** + * struct parent_map - map table for source select configuration values + * @src: source + * @cfg: configuration value + */ +struct parent_map { + u8 src; + u8 cfg; +}; + extern const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f, unsigned long rate); extern const struct freq_tbl *qcom_find_freq_floor(const struct freq_tbl *f,