From nobody Sat Feb 7 19:41:40 2026 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 004D127E06C; Mon, 12 Jan 2026 13:49:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768225753; cv=none; b=fhrqK2Th+ldoLVuc9U2JdW0Jm19Fb4x9QqN8DI1kz3MxY0RkvL2EjIgXy2tHvS+Ia6Nl3n2wDZo9y7aW7I6bnIiCR4mWFEjlX1KDtEkfD5klN/VZT21rZBJiqSK0J7J/u8OUq+FSOavlD8estWAiwvofOQarWTCZveYmCjwGj4E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768225753; c=relaxed/simple; bh=qCWXBi+aTKd9zaGMwJOJjmzr111g+vvf73F56N3N8yM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eLQVBvwLihRtQtpMdELneF8IaxFDbiYNgB7NiNG0PrRKyfu1ufz+yZCnHu5F+pLAWh91AMqr989z9iXMAUlbUOwVNjP/FKXnHVtI1v5KpvHQ9pHafK7IfxDGMfB5jWkS8T3QoQN9GUvy10Ma+fJ7GQ5E5bnHT1sbWQrAcsxnrTk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Ukpfmq4n; arc=none smtp.client-ip=198.175.65.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Ukpfmq4n" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768225752; x=1799761752; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=qCWXBi+aTKd9zaGMwJOJjmzr111g+vvf73F56N3N8yM=; b=Ukpfmq4nm1Qhch6q3j9t7Creg9K92L1jiDggxyw9QYEB6ZS9eQjwWrGb UBhgSp9q16n4QE31d1QJ+PJM5nY5X96KRJ/rwQ4HZ5BZF3e5mSYVHnaZf E8OgKiryaCW0iJkQEsPl1giPXRLfCrjEwAgHzIJUraYEnCls2wH6daQOH L/l3hw800LKbfeHTk593GtkGSgmoC10HtY85OkO+AGH8D/WZ69ShZVam5 LIn0Xqjd2u6O7KCD/3ifl+SocI/bEPOcKzMK3SpmzB1hIbUwi55wScDia 12gR7iaizZ8F4+6zaUFQg9P/aYyUUIzaRHBlZIiD8j3groVs2ItIw0Sok w==; X-CSE-ConnectionGUID: RA0sbPSPTs2I3BnIbXH7eQ== X-CSE-MsgGUID: DbieedHvSpSRXj/jYp26KQ== X-IronPort-AV: E=McAfee;i="6800,10657,11669"; a="80604509" X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="80604509" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jan 2026 05:49:12 -0800 X-CSE-ConnectionGUID: /tOT5H3WTR6cNGHY74iXbA== X-CSE-MsgGUID: ZOLMNcZMSb+jYMwZW8Iclw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="208568090" Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa005.fm.intel.com with ESMTP; 12 Jan 2026 05:49:08 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id B394599; Mon, 12 Jan 2026 14:49:06 +0100 (CET) From: Andy Shevchenko To: Andi Shyti , Andy Shevchenko , Wolfram Sang , Qianfeng Rong , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org Cc: Khalil Blaiech , Asmaa Mnebhi , Andi Shyti , Qii Wang , Matthias Brugger , AngeloGioacchino Del Regno , Linus Walleij , Heiko Stuebner , Patrice Chotard , Ard Biesheuvel Subject: [PATCH v1 1/7] units: Add HZ_PER_GHZ Date: Mon, 12 Jan 2026 14:46:09 +0100 Message-ID: <20260112134900.4142954-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> References: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The is going to be a new user of the HZ_PER_GHZ definition besides possibly existing ones. Add that one to the header. While at it, split Hz and kHz groups of the multipliers for better maintenance and readability. Signed-off-by: Andy Shevchenko Reviewed-by: Andi Shyti Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Linus Walleij Reviewed-by: Wolfram Sang --- include/linux/units.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/units.h b/include/linux/units.h index 00e15de33eca..0c296a004e89 100644 --- a/include/linux/units.h +++ b/include/linux/units.h @@ -25,9 +25,12 @@ #define MICROHZ_PER_HZ 1000000UL #define MILLIHZ_PER_HZ 1000UL =20 +/* Hz based multipliers */ #define HZ_PER_KHZ 1000UL #define HZ_PER_MHZ 1000000UL +#define HZ_PER_GHZ 1000000000UL =20 +/* kHz based multipliers */ #define KHZ_PER_MHZ 1000UL #define KHZ_PER_GHZ 1000000UL =20 --=20 2.50.1 From nobody Sat Feb 7 19:41:40 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6304035B15F; Mon, 12 Jan 2026 13:49:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768225755; cv=none; b=Ny9OkplctdR+EeJNL7bbh0XB8XxozxXN4Rz+zzrCcLcsXHq0bXkk4RcyEe7ibAxtfhaI0X8kW/MIv9ZrCYFIgRO3ear+TFyHSwV3Edorhos9fOCYHag0c7gZgl5YoWCQ3SsAg7rzMITmJ2QSANGeUu+gcITJu6sF5PXf2CAdPyE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768225755; c=relaxed/simple; bh=QQ0qqH3VNmZu+wMQEzW+Nf85tDjOXZ++eEjaIO+FgcA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uRtbtpyQWspeZ51wTwJGjUwaLTeVd617bn9/lc4bU8e/kUIfg/cw/nsF7YDyczPICYWjyovrfPn2e4ZevFDO/O7sa2J4wtgxY15nVliVSp0coG0sqbZ6I4lDFQXEJr1iH9BtclbhxJxH2vTst66rUWbOB3YRNyFqWgf8Xaebx1o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=kzK6gpft; arc=none smtp.client-ip=192.198.163.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="kzK6gpft" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768225754; x=1799761754; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QQ0qqH3VNmZu+wMQEzW+Nf85tDjOXZ++eEjaIO+FgcA=; b=kzK6gpft/gJqPCMc+m/q4Epj05AZPepfNxRQpnH4XzYWqXKYZQ4++Y6v advRO5MqXBZw1Dn7xQC46VcQo/rT5kl6SBcwydVREYXX02FHfBkeSci1H V/of1q2uGCfiJzCH96fH8m/JOeh72ZkaheddYKr78xvMSWRJGo1dkQ7pK 8YgmR7TVu2kSdYy/mYfxYU8YQdHrduT9LcJyChcOXK3NdQiTax83JRUS0 02HbTRpC53ucnLkHl4sQR7c3YtvOepQVU1t8xZmhKKUuksb93PcMKVssu LP4uOrxjGNV481FeF6jL/9YXp4FQZpgHBlxlFB3YmNqSi+8rlDWjQ0pa6 w==; X-CSE-ConnectionGUID: KstXn0+fQcabQJZP2bvo0Q== X-CSE-MsgGUID: Ba2gj9Q9THWiHmEbfWFdsQ== X-IronPort-AV: E=McAfee;i="6800,10657,11669"; a="57048292" X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="57048292" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jan 2026 05:49:12 -0800 X-CSE-ConnectionGUID: noLH1GPoT2e5iwBFL7qsDg== X-CSE-MsgGUID: TPNbfTbKTRWsr+6apHjc9Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="208618613" Received: from black.igk.intel.com ([10.91.253.5]) by orviesa004.jf.intel.com with ESMTP; 12 Jan 2026 05:49:08 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id B87469B; Mon, 12 Jan 2026 14:49:06 +0100 (CET) From: Andy Shevchenko To: Andi Shyti , Andy Shevchenko , Wolfram Sang , Qianfeng Rong , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org Cc: Khalil Blaiech , Asmaa Mnebhi , Andi Shyti , Qii Wang , Matthias Brugger , AngeloGioacchino Del Regno , Linus Walleij , Heiko Stuebner , Patrice Chotard , Ard Biesheuvel Subject: [PATCH v1 2/7] i2c: mlxbf: Use HZ_PER_GHZ constant instead of custom one Date: Mon, 12 Jan 2026 14:46:10 +0100 Message-ID: <20260112134900.4142954-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> References: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use HZ_PER_GHZ constant instead of custom one. No functional changes. Signed-off-by: Andy Shevchenko Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Wolfram Sang --- drivers/i2c/busses/i2c-mlxbf.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-mlxbf.c b/drivers/i2c/busses/i2c-mlxbf.c index 8345f7e6385d..746f65989138 100644 --- a/drivers/i2c/busses/i2c-mlxbf.c +++ b/drivers/i2c/busses/i2c-mlxbf.c @@ -20,6 +20,7 @@ #include #include #include +#include =20 /* Defines what functionality is present. */ #define MLXBF_I2C_FUNC_SMBUS_BLOCK \ @@ -72,8 +73,6 @@ /* Constant used to determine the PLL frequency. */ #define MLNXBF_I2C_COREPLL_CONST 16384ULL =20 -#define MLXBF_I2C_FREQUENCY_1GHZ 1000000000ULL - /* PLL registers. */ #define MLXBF_I2C_CORE_PLL_REG1 0x4 #define MLXBF_I2C_CORE_PLL_REG2 0x8 @@ -1083,7 +1082,7 @@ static u32 mlxbf_i2c_get_ticks(struct mlxbf_i2c_priv = *priv, u64 nanoseconds, * Frequency */ frequency =3D priv->frequency; - ticks =3D div_u64(nanoseconds * frequency, MLXBF_I2C_FREQUENCY_1GHZ); 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12 Jan 2026 05:49:08 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id BD2BE9D; Mon, 12 Jan 2026 14:49:06 +0100 (CET) From: Andy Shevchenko To: Andi Shyti , Andy Shevchenko , Wolfram Sang , Qianfeng Rong , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org Cc: Khalil Blaiech , Asmaa Mnebhi , Andi Shyti , Qii Wang , Matthias Brugger , AngeloGioacchino Del Regno , Linus Walleij , Heiko Stuebner , Patrice Chotard , Ard Biesheuvel Subject: [PATCH v1 3/7] i2c: mt65xx: Use HZ_PER_GHZ constant instead of plain number Date: Mon, 12 Jan 2026 14:46:11 +0100 Message-ID: <20260112134900.4142954-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> References: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use defined constant to avoid the possible mistakes and to provide an additional information on the units. Signed-off-by: Andy Shevchenko Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Wolfram Sang --- drivers/i2c/busses/i2c-mt65xx.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65x= x.c index aefdbee1f03c..cb4d3aa709d0 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -24,6 +24,7 @@ #include #include #include +#include =20 #define I2C_RS_TRANSFER (1 << 4) #define I2C_ARB_LOST (1 << 3) @@ -685,7 +686,7 @@ static int mtk_i2c_get_clk_div_restri(struct mtk_i2c *i= 2c, * Check and Calculate i2c ac-timing * * Hardware design: - * sample_ns =3D (1000000000 * (sample_cnt + 1)) / clk_src + * sample_ns =3D (HZ_PER_GHZ * (sample_cnt + 1)) / clk_src * xxx_cnt_div =3D spec->min_xxx_ns / sample_ns * * Sample_ns is rounded down for xxx_cnt_div would be greater @@ -701,9 +702,8 @@ static int mtk_i2c_check_ac_timing(struct mtk_i2c *i2c, { const struct i2c_spec_values *spec; unsigned int su_sta_cnt, low_cnt, high_cnt, max_step_cnt; 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charset="utf-8" Use defined constant to avoid the possible mistakes and to provide an additional information on the units. While at it, drop unneeded 64-bit division, all operands fit 32-bit. Signed-off-by: Andy Shevchenko Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Linus Walleij Reviewed-by: Wolfram Sang --- drivers/i2c/busses/i2c-nomadik.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-noma= dik.c index 19b648fc094d..b63ee51c1652 100644 --- a/drivers/i2c/busses/i2c-nomadik.c +++ b/drivers/i2c/busses/i2c-nomadik.c @@ -31,6 +31,7 @@ #include #include #include +#include =20 #define DRIVER_NAME "nmk-i2c" =20 @@ -419,10 +420,10 @@ static void setup_i2c_controller(struct nmk_i2c_dev *= priv) * modes are 250ns, 100ns, 10ns respectively. * * As the time for one cycle T in nanoseconds is - * T =3D (1/f) * 1000000000 =3D> - * slsu =3D cycles / (1000000000 / f) + 1 + * T =3D (1/f) * HZ_PER_GHZ =3D> + * slsu =3D cycles / (HZ_PER_GHZ / f) + 1 */ - ns =3D DIV_ROUND_UP_ULL(1000000000ULL, i2c_clk); + ns =3D DIV_ROUND_UP(HZ_PER_GHZ, i2c_clk); switch (priv->sm) { case I2C_FREQ_MODE_FAST: case I2C_FREQ_MODE_FAST_PLUS: --=20 2.50.1 From nobody Sat Feb 7 19:41:41 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 27CF035C1BA; 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charset="utf-8" Use defined constant to avoid the possible mistakes and to provide an additional information on the units. Signed-off-by: Andy Shevchenko Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Heiko Stuebner Reviewed-by: Wolfram Sang --- drivers/i2c/busses/i2c-rk3x.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c index d4e9196445c0..fcede9f6ed54 100644 --- a/drivers/i2c/busses/i2c-rk3x.c +++ b/drivers/i2c/busses/i2c-rk3x.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -896,13 +897,12 @@ static void rk3x_i2c_adapt_div(struct rk3x_i2c *i2c, = unsigned long clk_rate) =20 clk_disable(i2c->pclk); =20 - t_low_ns =3D div_u64(((u64)calc.div_low + 1) * 8 * 1000000000, clk_rate); - t_high_ns =3D div_u64(((u64)calc.div_high + 1) * 8 * 1000000000, - clk_rate); + t_low_ns =3D div_u64(8ULL * HZ_PER_GHZ * (calc.div_low + 1), clk_rate); + t_high_ns =3D div_u64(8ULL * HZ_PER_GHZ * (calc.div_high + 1), clk_rate); dev_dbg(i2c->dev, - "CLK %lukhz, Req %uns, Act low %lluns high %lluns\n", - clk_rate / 1000, - 1000000000 / t->bus_freq_hz, + "CLK %lukHz, Req %luns, Act low %lluns high %lluns\n", + clk_rate / HZ_PER_KHZ, + HZ_PER_GHZ / t->bus_freq_hz, t_low_ns, t_high_ns); 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charset="utf-8" Use defined constant to avoid the possible mistakes and to provide an additional information on the units. Signed-off-by: Andy Shevchenko Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Patrice Chotard Reviewed-by: Wolfram Sang --- drivers/i2c/busses/i2c-st.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-st.c b/drivers/i2c/busses/i2c-st.c index 97d70e667227..751ea421caaf 100644 --- a/drivers/i2c/busses/i2c-st.c +++ b/drivers/i2c/busses/i2c-st.c @@ -20,6 +20,7 @@ #include #include #include +#include =20 /* SSC registers */ #define SSC_BRG 0x000 @@ -285,7 +286,7 @@ static void st_i2c_hw_config(struct st_i2c_dev *i2c_dev) writel_relaxed(val, i2c_dev->base + SSC_CTL); =20 rate =3D clk_get_rate(i2c_dev->clk); - ns_per_clk =3D 1000000000 / rate; + ns_per_clk =3D HZ_PER_GHZ / rate; =20 /* Baudrate */ val =3D rate / (2 * t->rate); --=20 2.50.1 From nobody Sat Feb 7 19:41:41 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CA10B355051; 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X-CSE-ConnectionGUID: +YgO98dvRU2uND/vtwFCAw== X-CSE-MsgGUID: UJGONPP/ROiSFPBOap9KEg== X-IronPort-AV: E=McAfee;i="6800,10657,11669"; a="57048329" X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="57048329" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jan 2026 05:49:16 -0800 X-CSE-ConnectionGUID: qxmDXGGUSi2DaE8/GG5AqQ== X-CSE-MsgGUID: /vn6Qq1uQVGqJCdFULVPXA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="208618616" Received: from black.igk.intel.com ([10.91.253.5]) by orviesa004.jf.intel.com with ESMTP; 12 Jan 2026 05:49:12 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id CEC9DA4; Mon, 12 Jan 2026 14:49:06 +0100 (CET) From: Andy Shevchenko To: Andi Shyti , Andy Shevchenko , Wolfram Sang , Qianfeng Rong , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org Cc: Khalil Blaiech , Asmaa Mnebhi , Andi Shyti , Qii Wang , Matthias Brugger , AngeloGioacchino Del Regno , Linus Walleij , Heiko Stuebner , Patrice Chotard , Ard Biesheuvel Subject: [PATCH v1 7/7] i2c: synquacer: Use HZ_PER_GHZ constant instead of plain number Date: Mon, 12 Jan 2026 14:46:15 +0100 Message-ID: <20260112134900.4142954-8-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> References: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use defined constant to avoid the possible mistakes and to provide an additional information on the units. Signed-off-by: Andy Shevchenko Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Wolfram Sang --- drivers/i2c/busses/i2c-synquacer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-synquacer.c b/drivers/i2c/busses/i2c-sy= nquacer.c index 1230f51e1624..4891d68bf0ee 100644 --- a/drivers/i2c/busses/i2c-synquacer.c +++ b/drivers/i2c/busses/i2c-synquacer.c @@ -18,9 +18,10 @@ #include #include #include +#include =20 #define WAIT_PCLK(n, rate) \ - ndelay(DIV_ROUND_UP(DIV_ROUND_UP(1000000000, rate), n) + 10) + ndelay(DIV_ROUND_UP(DIV_ROUND_UP(HZ_PER_GHZ, rate), n) + 10) =20 /* I2C register address definitions */ #define SYNQUACER_I2C_REG_BSR (0x00 << 2) // Bus Status --=20 2.50.1