From patchwork Fri May 23 14:27:37 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Abraham X-Patchwork-Id: 4233071 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id BC42DBF90C for ; Fri, 23 May 2014 14:31:13 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C0D8F201B9 for ; Fri, 23 May 2014 14:31:11 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AF6BE20171 for ; Fri, 23 May 2014 14:31:10 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WnqSr-0000ED-W0; Fri, 23 May 2014 14:28:53 +0000 Received: from mail-pa0-x22e.google.com ([2607:f8b0:400e:c03::22e]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WnqSb-00005k-S2 for linux-arm-kernel@lists.infradead.org; Fri, 23 May 2014 14:28:38 +0000 Received: by mail-pa0-f46.google.com with SMTP id kq14so4173139pab.19 for ; Fri, 23 May 2014 07:28:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=Jw1pctp+qayQHPeh+OPZV9sjugPB8MTy7AkqHH31rRs=; b=qUmD2jYTh67sq+1i6KLLcOgjybY3JhyoR3SrIwgoX4pC51xPC/7F+JiM7onfjWPlAd CkdfRktOigyNReUVNQ3b1/mxrns0js6UytUHt2bPOOX/mfpXwg7+jGjSbdaSRQfFp4s9 Y9jqDaG6ON/xoXTG6Co3DDHRbeWrU6ojqUFbx28YH2m/ektgHIoXKgZjcIzXghuPBf0H Kiiu6SwVhaLUkHkYxn1+MamBKgfEtjuIRcM/7gbs07M0dfNH2iYCGb6niQ3Azffb/Po2 tOgnhrq1A1ZGK5dTALdYxEYcJcQkpRoLB3iZ8wu+ii3i9Rv+sdMiKAgFSgX1Tkar2BWg /RFg== X-Received: by 10.68.89.4 with SMTP id bk4mr6238069pbb.153.1400855297113; Fri, 23 May 2014 07:28:17 -0700 (PDT) Received: from user-ubuntu.sisodomain.com ([14.140.216.146]) by mx.google.com with ESMTPSA id jd5sm4966871pbb.18.2014.05.23.07.28.13 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 23 May 2014 07:28:16 -0700 (PDT) From: Thomas Abraham To: cpufreq@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 4/7] clk: exynos: use cpu-clock provider type to represent arm clock Date: Fri, 23 May 2014 19:57:37 +0530 Message-Id: <1400855260-6807-5-git-send-email-thomas.ab@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1400855260-6807-1-git-send-email-thomas.ab@samsung.com> References: <1400855260-6807-1-git-send-email-thomas.ab@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140523_072837_943402_412A8605 X-CRM114-Status: GOOD ( 13.48 ) X-Spam-Score: 0.0 (/) Cc: l.majewski@samsung.com, kgene.kim@samsung.com, mturquette@linaro.org, heiko@sntech.de, viresh.kumar@linaro.org, t.figa@samsung.com, linux-samsung-soc@vger.kernel.org, thomas.ab@samsung.com, shawn.guo@linaro.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Thomas Abraham With the addition of the new Samsung specific cpu-clock type, the arm clock can be represented as a cpu-clock type and the independent clock blocks that made up the arm clock can be removed. Signed-off-by: Thomas Abraham --- drivers/clk/samsung/clk-exynos4.c | 25 +++++++++++++++++-------- drivers/clk/samsung/clk-exynos5250.c | 16 +++++++++++----- include/dt-bindings/clock/exynos5250.h | 1 + 3 files changed, 29 insertions(+), 13 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index c4df294..fd235e4 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -471,7 +471,8 @@ static struct samsung_mux_clock exynos4210_mux_clks[] __initdata = { MUX(0, "mout_fimd1", group1_p4210, E4210_SRC_LCD1, 0, 4), MUX(0, "mout_mipi1", group1_p4210, E4210_SRC_LCD1, 12, 4), MUX(CLK_SCLK_MPLL, "sclk_mpll", mout_mpll_p, SRC_CPU, 8, 1), - MUX(CLK_MOUT_CORE, "mout_core", mout_core_p4210, SRC_CPU, 16, 1), + MUX_F(CLK_MOUT_CORE, "mout_core", mout_core_p4210, SRC_CPU, 16, 1, 0, + CLK_MUX_READ_ONLY), MUX(CLK_SCLK_VPLL, "sclk_vpll", sclk_vpll_p4210, SRC_TOP0, 8, 1), MUX(CLK_MOUT_FIMC0, "mout_fimc0", group1_p4210, SRC_CAM, 0, 4), MUX(CLK_MOUT_FIMC1, "mout_fimc1", group1_p4210, SRC_CAM, 4, 4), @@ -530,7 +531,8 @@ static struct samsung_mux_clock exynos4x12_mux_clks[] __initdata = { MUX(0, "mout_jpeg", mout_jpeg_p, E4X12_SRC_CAM1, 8, 1), MUX(CLK_SCLK_MPLL, "sclk_mpll", mout_mpll_p, SRC_DMC, 12, 1), MUX(CLK_SCLK_VPLL, "sclk_vpll", mout_vpll_p, SRC_TOP0, 8, 1), - MUX(CLK_MOUT_CORE, "mout_core", mout_core_p4x12, SRC_CPU, 16, 1), + MUX_F(CLK_MOUT_CORE, "mout_core", mout_core_p4x12, SRC_CPU, 16, 1, 0, + CLK_MUX_READ_ONLY), MUX(CLK_MOUT_FIMC0, "mout_fimc0", group1_p4x12, SRC_CAM, 0, 4), MUX(CLK_MOUT_FIMC1, "mout_fimc1", group1_p4x12, SRC_CAM, 4, 4), MUX(CLK_MOUT_FIMC2, "mout_fimc2", group1_p4x12, SRC_CAM, 8, 4), @@ -572,8 +574,10 @@ static struct samsung_mux_clock exynos4x12_mux_clks[] __initdata = { /* list of divider clocks supported in all exynos4 soc's */ static struct samsung_div_clock exynos4_div_clks[] __initdata = { - DIV(0, "div_core", "mout_core", DIV_CPU0, 0, 3), - DIV(0, "div_core2", "div_core", DIV_CPU0, 28, 3), + DIV_F(0, "div_core", "mout_core", DIV_CPU0, 0, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), + DIV_F(0, "div_core2", "div_core", DIV_CPU0, 28, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), DIV(0, "div_fimc0", "mout_fimc0", DIV_CAM, 0, 4), DIV(0, "div_fimc1", "mout_fimc1", DIV_CAM, 4, 4), DIV(0, "div_fimc2", "mout_fimc2", DIV_CAM, 8, 4), @@ -619,8 +623,10 @@ static struct samsung_div_clock exynos4_div_clks[] __initdata = { DIV(0, "div_spi_pre2", "div_spi2", DIV_PERIL2, 8, 8), DIV(0, "div_audio1", "mout_audio1", DIV_PERIL4, 0, 4), DIV(0, "div_audio2", "mout_audio2", DIV_PERIL4, 16, 4), - DIV(CLK_ARM_CLK, "arm_clk", "div_core2", DIV_CPU0, 28, 3), - DIV(CLK_SCLK_APLL, "sclk_apll", "mout_apll", DIV_CPU0, 24, 3), + DIV_F(CLK_ARM_CLK, "arm_clk", "div_core2", DIV_CPU0, 28, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), + DIV_F(CLK_SCLK_APLL, "sclk_apll", "mout_apll", DIV_CPU0, 24, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), DIV_F(0, "div_mipi_pre0", "div_mipi0", DIV_LCD0, 20, 4, CLK_SET_RATE_PARENT, 0), DIV_F(0, "div_mmc_pre0", "div_mmc0", DIV_FSYS1, 8, 8, @@ -1005,7 +1011,6 @@ static struct samsung_gate_clock exynos4x12_gate_clks[] __initdata = { static struct samsung_clock_alias exynos4_aliases[] __initdata = { ALIAS(CLK_MOUT_CORE, NULL, "moutcore"), - ALIAS(CLK_ARM_CLK, NULL, "armclk"), ALIAS(CLK_SCLK_APLL, NULL, "mout_apll"), }; @@ -1244,6 +1249,8 @@ static void __init exynos4_clk_init(struct device_node *np, ARRAY_SIZE(exynos4210_gate_clks)); samsung_clk_register_alias(ctx, exynos4210_aliases, ARRAY_SIZE(exynos4210_aliases)); + exynos_register_arm_clock(ctx, CLK_ARM_CLK, mout_core_p4210[0], + mout_core_p4210[1], np); } else { samsung_clk_register_mux(ctx, exynos4x12_mux_clks, ARRAY_SIZE(exynos4x12_mux_clks)); @@ -1253,6 +1260,8 @@ static void __init exynos4_clk_init(struct device_node *np, ARRAY_SIZE(exynos4x12_gate_clks)); samsung_clk_register_alias(ctx, exynos4x12_aliases, ARRAY_SIZE(exynos4x12_aliases)); + exynos_register_arm_clock(ctx, CLK_ARM_CLK, mout_core_p4x12[0], + mout_core_p4x12[1], np); } samsung_clk_register_alias(ctx, exynos4_aliases, @@ -1265,7 +1274,7 @@ static void __init exynos4_clk_init(struct device_node *np, exynos4_soc == EXYNOS4210 ? "Exynos4210" : "Exynos4x12", _get_rate("sclk_apll"), _get_rate("sclk_mpll"), _get_rate("sclk_epll"), _get_rate("sclk_vpll"), - _get_rate("arm_clk")); + _get_rate("armclk")); } diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index 1fad4c5..6e91b97 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -292,7 +292,8 @@ static struct samsung_mux_clock exynos5250_mux_clks[] __initdata = { */ MUX_FA(0, "mout_apll", mout_apll_p, SRC_CPU, 0, 1, CLK_SET_RATE_PARENT, 0, "mout_apll"), - MUX_A(0, "mout_cpu", mout_cpu_p, SRC_CPU, 16, 1, "mout_cpu"), + MUX_FA(0, "mout_cpu", mout_cpu_p, SRC_CPU, 16, 1, + 0, CLK_MUX_READ_ONLY, "mout_cpu"), /* * CMU_CORE @@ -379,9 +380,12 @@ static struct samsung_div_clock exynos5250_div_clks[] __initdata = { /* * CMU_CPU */ - DIV(0, "div_arm", "mout_cpu", DIV_CPU0, 0, 3), - DIV(0, "div_apll", "mout_apll", DIV_CPU0, 24, 3), - DIV_A(0, "div_arm2", "div_arm", DIV_CPU0, 28, 3, "armclk"), + DIV_F(0, "div_arm", "mout_cpu", DIV_CPU0, 0, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), + DIV_F(0, "div_apll", "mout_apll", DIV_CPU0, 24, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), + DIV_F(0, "div_arm2", "div_arm", DIV_CPU0, 28, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), /* * CMU_TOP @@ -797,6 +801,8 @@ static void __init exynos5250_clk_init(struct device_node *np) ARRAY_SIZE(exynos5250_div_clks)); samsung_clk_register_gate(ctx, exynos5250_gate_clks, ARRAY_SIZE(exynos5250_gate_clks)); + exynos_register_arm_clock(ctx, CLK_ARM_CLK, mout_cpu_p[0], + mout_cpu_p[1], np); /* * Enable arm clock down (in idle) and set arm divider @@ -821,6 +827,6 @@ static void __init exynos5250_clk_init(struct device_node *np) exynos5250_clk_sleep_init(); pr_info("Exynos5250: clock setup completed, armclk=%ld\n", - _get_rate("div_arm2")); + _get_rate("armclk")); } CLK_OF_DECLARE(exynos5250_clk, "samsung,exynos5250-clock", exynos5250_clk_init); diff --git a/include/dt-bindings/clock/exynos5250.h b/include/dt-bindings/clock/exynos5250.h index be6e97c..d3565be 100644 --- a/include/dt-bindings/clock/exynos5250.h +++ b/include/dt-bindings/clock/exynos5250.h @@ -21,6 +21,7 @@ #define CLK_FOUT_CPLL 6 #define CLK_FOUT_EPLL 7 #define CLK_FOUT_VPLL 8 +#define CLK_ARM_CLK 12 /* gate for special clocks (sclk) */ #define CLK_SCLK_CAM_BAYER 128