From nobody Sat Feb 7 08:45:23 2026 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (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 3C40A3AA196; Fri, 16 Jan 2026 20:07:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.154.123 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768594072; cv=none; b=NPu0qkcn4PIQTODKLqNyo8TqW6LtZBxeFY2+RZN60aOcQoEZqDHyFBIo0Ff0tQUZrwW7b+PohQulTcCWOIXj58GNylZ/ze1p8vOy6dtTZ4DXBHK8MMIQBV6I/tgiGoqDBvavLSi5Hvt0bHJkVcd1Qna+guBkDZe7I5AHqNbKb6I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768594072; c=relaxed/simple; bh=uTkFVJoez1/J0P1G+rNdaomAw0JniamhmbMDOed+tkE=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=NhzVaZa51LPGhovDt1vlAKIiP3KOZuRp7Cn9WY6IYPgJ/8A32OfqbfT0dNisNafVph0OjGP47Vf2BxJf77l8+lQbt7ZaVPDI6erlHES29BFWKPXSyw0GdTcTDL/5mdKWgXAh5gj42mThnD/oNGTrwNwhlXr7q6BkXblhhe/0vzc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=k9ydaWov; arc=none smtp.client-ip=68.232.154.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="k9ydaWov" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1768594068; x=1800130068; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=uTkFVJoez1/J0P1G+rNdaomAw0JniamhmbMDOed+tkE=; b=k9ydaWovPxkw2sYNEtD2YbFA3cGcM7GmF0c0EFQJG2OveX1p10GqOfNw S6gOT2cUsD24kcR1Ep3dxE5TIaxqHxZcYl5xejljtGfVIPusaDjkerbrm h+iyjz0sd3GLmXR3Q2o/diegJlq4ZzkEfvF7bZxiPKyxiPtKAtHZ3zzpr PgEmN7RWiS0LG71BWvcyc16FY5CmVD2PL4V+hicX4Cmm4z/YT0MvAGkyE t4VFPkErQJk4vqjdKdczKYXOQiwsEMNJQx84Bfl1cqayjL5fxjPXl/80S uwlQjmOYTDllJLX5B0RCdPzu6CaymU8YqCDgPpUqiyVDrIq6fao+yElXt Q==; X-CSE-ConnectionGUID: 3LvvvroxTJyR6T9mab+TNA== X-CSE-MsgGUID: SrpWOxkmQI2dHwO2ucF53A== X-IronPort-AV: E=Sophos;i="6.21,232,1763449200"; d="scan'208";a="51290379" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 16 Jan 2026 13:07:36 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.58; Fri, 16 Jan 2026 13:07:08 -0700 Received: from ryan-Precision-3630-Tower.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Fri, 16 Jan 2026 13:07:08 -0700 From: To: , , , , , , , CC: , , , , Subject: [PATCH v5 30/31] clk: at91: at91sam9n12: switch to parent_hw and parent_data Date: Fri, 16 Jan 2026 13:07:23 -0700 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: 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" From: Claudiu Beznea Switch AT91SAM9N12 clocks to use parent_hw and parent_data. Having parent_hw instead of parent names improves to clock registration speed and re-parenting. Signed-off-by: Claudiu Beznea Signed-off-by: Ryan Wanner --- drivers/clk/at91/at91sam9n12.c | 90 +++++++++++++++++++--------------- 1 file changed, 51 insertions(+), 39 deletions(-) diff --git a/drivers/clk/at91/at91sam9n12.c b/drivers/clk/at91/at91sam9n12.c index 34dd7645f964..87c28d34f98d 100644 --- a/drivers/clk/at91/at91sam9n12.c +++ b/drivers/clk/at91/at91sam9n12.c @@ -51,9 +51,9 @@ static const struct clk_pll_characteristics pllb_characte= ristics =3D { .out =3D pllb_out, }; =20 -static const struct { +static struct { char *n; - char *p; + struct clk_hw *parent_hw; unsigned long flags; u8 id; } at91sam9n12_systemck[] =3D { @@ -61,12 +61,12 @@ static const struct { * ddrck feeds DDR controller and is enabled by bootloader thus we need * to keep it enabled in case there is no Linux consumer for it. */ - { .n =3D "ddrck", .p =3D "masterck_div", .id =3D 2, .flags =3D CLK_IS_CRI= TICAL }, - { .n =3D "lcdck", .p =3D "masterck_div", .id =3D 3 }, - { .n =3D "uhpck", .p =3D "usbck", .id =3D 6 }, - { .n =3D "udpck", .p =3D "usbck", .id =3D 7 }, - { .n =3D "pck0", .p =3D "prog0", .id =3D 8 }, - { .n =3D "pck1", .p =3D "prog1", .id =3D 9 }, + { .n =3D "ddrck", .id =3D 2, .flags =3D CLK_IS_CRITICAL }, + { .n =3D "lcdck", .id =3D 3 }, + { .n =3D "uhpck", .id =3D 6 }, + { .n =3D "udpck", .id =3D 7 }, + { .n =3D "pck0", .id =3D 8 }, + { .n =3D "pck1", .id =3D 9 }, }; =20 static const struct clk_pcr_layout at91sam9n12_pcr_layout =3D { @@ -111,12 +111,12 @@ static const struct pck at91sam9n12_periphck[] =3D { =20 static void __init at91sam9n12_pmc_setup(struct device_node *np) { + struct clk_hw *usbck_hw, *hw, *main_rc_hw, *main_osc_hw; struct clk_range range =3D CLK_RANGE(0, 0); const char *slck_name, *mainxtal_name; + struct clk_parent_data parent_data[5]; struct pmc_data *at91sam9n12_pmc; - const char *parent_names[6]; struct regmap *regmap; - struct clk_hw *hw; int i; bool bypass; =20 @@ -140,50 +140,53 @@ static void __init at91sam9n12_pmc_setup(struct devic= e_node *np) if (!at91sam9n12_pmc) return; =20 - hw =3D at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000000, - 50000000); - if (IS_ERR(hw)) + main_rc_hw =3D at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000= 000, + 50000000); + if (IS_ERR(main_rc_hw)) goto err_free; =20 bypass =3D of_property_read_bool(np, "atmel,osc-bypass"); =20 - hw =3D at91_clk_register_main_osc(regmap, "main_osc", mainxtal_name, NULL, - bypass); - if (IS_ERR(hw)) + main_osc_hw =3D at91_clk_register_main_osc(regmap, "main_osc", NULL, + &AT91_CLK_PD_NAME(mainxtal_name), + bypass); + if (IS_ERR(main_osc_hw)) goto err_free; =20 - parent_names[0] =3D "main_rc_osc"; - parent_names[1] =3D "main_osc"; - hw =3D at91_clk_register_sam9x5_main(regmap, "mainck", parent_names, NULL= , 2); + parent_data[0] =3D AT91_CLK_PD_HW(main_rc_hw); + parent_data[1] =3D AT91_CLK_PD_HW(main_osc_hw); + hw =3D at91_clk_register_sam9x5_main(regmap, "mainck", NULL, parent_data,= 2); if (IS_ERR(hw)) goto err_free; =20 at91sam9n12_pmc->chws[PMC_MAIN] =3D hw; =20 - hw =3D at91_clk_register_pll(regmap, "pllack", "mainck", NULL, 0, + hw =3D at91_clk_register_pll(regmap, "pllack", NULL, + &AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_MAIN]), 0, &at91rm9200_pll_layout, &plla_characteristics); if (IS_ERR(hw)) goto err_free; =20 - hw =3D at91_clk_register_plldiv(regmap, "plladivck", "pllack", NULL); + hw =3D at91_clk_register_plldiv(regmap, "plladivck", NULL, &AT91_CLK_PD_H= W(hw)); if (IS_ERR(hw)) goto err_free; =20 at91sam9n12_pmc->chws[PMC_PLLACK] =3D hw; =20 - hw =3D at91_clk_register_pll(regmap, "pllbck", "mainck", NULL, 1, + hw =3D at91_clk_register_pll(regmap, "pllbck", NULL, + &AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_MAIN]), 1, &at91rm9200_pll_layout, &pllb_characteristics); if (IS_ERR(hw)) goto err_free; =20 at91sam9n12_pmc->chws[PMC_PLLBCK] =3D hw; =20 - parent_names[0] =3D slck_name; - parent_names[1] =3D "mainck"; - parent_names[2] =3D "plladivck"; - parent_names[3] =3D "pllbck"; + parent_data[0] =3D AT91_CLK_PD_NAME(slck_name); + parent_data[1] =3D AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_MAIN]); + parent_data[2] =3D AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_PLLACK]); + parent_data[3] =3D AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_PLLBCK]); hw =3D at91_clk_register_master_pres(regmap, "masterck_pres", 4, - parent_names, NULL, + NULL, parent_data, &at91sam9x5_master_layout, &mck_characteristics, &at91sam9n12_mck_lock); @@ -191,7 +194,7 @@ static void __init at91sam9n12_pmc_setup(struct device_= node *np) goto err_free; =20 hw =3D at91_clk_register_master_div(regmap, "masterck_div", - "masterck_pres", NULL, + NULL, &AT91_CLK_PD_HW(hw), &at91sam9x5_master_layout, &mck_characteristics, &at91sam9n12_mck_lock, @@ -201,22 +204,23 @@ static void __init at91sam9n12_pmc_setup(struct devic= e_node *np) =20 at91sam9n12_pmc->chws[PMC_MCK] =3D hw; =20 - hw =3D at91sam9n12_clk_register_usb(regmap, "usbck", "pllbck", NULL); - if (IS_ERR(hw)) + usbck_hw =3D at91sam9n12_clk_register_usb(regmap, "usbck", NULL, + &AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_PLLBCK])); + if (IS_ERR(usbck_hw)) goto err_free; =20 - parent_names[0] =3D slck_name; - parent_names[1] =3D "mainck"; - parent_names[2] =3D "plladivck"; - parent_names[3] =3D "pllbck"; - parent_names[4] =3D "masterck_div"; + parent_data[0] =3D AT91_CLK_PD_NAME(slck_name); + parent_data[1] =3D AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_MAIN]); + parent_data[2] =3D AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_PLLACK]); + parent_data[3] =3D AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_PLLBCK]); + parent_data[4] =3D AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_MCK]); for (i =3D 0; i < 2; i++) { char name[6]; =20 snprintf(name, sizeof(name), "prog%d", i); =20 hw =3D at91_clk_register_programmable(regmap, name, - parent_names, NULL, 5, i, + NULL, parent_data, 5, i, &at91sam9x5_programmable_layout, NULL); if (IS_ERR(hw)) @@ -225,9 +229,16 @@ static void __init at91sam9n12_pmc_setup(struct device= _node *np) at91sam9n12_pmc->pchws[i] =3D hw; } =20 + /* Set systemck parent hws. */ + at91sam9n12_systemck[0].parent_hw =3D at91sam9n12_pmc->chws[PMC_MCK]; + at91sam9n12_systemck[1].parent_hw =3D at91sam9n12_pmc->chws[PMC_MCK]; + at91sam9n12_systemck[2].parent_hw =3D usbck_hw; + at91sam9n12_systemck[3].parent_hw =3D usbck_hw; + at91sam9n12_systemck[4].parent_hw =3D at91sam9n12_pmc->pchws[0]; + at91sam9n12_systemck[5].parent_hw =3D at91sam9n12_pmc->pchws[1]; for (i =3D 0; i < ARRAY_SIZE(at91sam9n12_systemck); i++) { - hw =3D at91_clk_register_system(regmap, at91sam9n12_systemck[i].n, - at91sam9n12_systemck[i].p, NULL, + hw =3D at91_clk_register_system(regmap, at91sam9n12_systemck[i].n, NULL, + &AT91_CLK_PD_HW(at91sam9n12_systemck[i].parent_hw), at91sam9n12_systemck[i].id, at91sam9n12_systemck[i].flags); if (IS_ERR(hw)) @@ -240,7 +251,8 @@ static void __init at91sam9n12_pmc_setup(struct device_= node *np) hw =3D at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock, &at91sam9n12_pcr_layout, at91sam9n12_periphck[i].n, - "masterck_div", NULL, + NULL, + &AT91_CLK_PD_HW(at91sam9n12_pmc->chws[PMC_MCK]), at91sam9n12_periphck[i].id, &range, INT_MIN, 0); if (IS_ERR(hw)) --=20 2.43.0