From nobody Sat Feb 7 10:16:09 2026 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (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 9D0EF3A4AAD; Fri, 16 Jan 2026 20:07:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.153.233 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768594065; cv=none; b=hTaJEOH2VIf7Xh+xH98qZPsBOtYTT3AGrCo4/aWU0/dtjDg9klx7i/p6Kx9q9UNIGbz6ys5IkO0QXPWxyDdVYmVxJneznM0TwyvtyQ9tup5ZHXqDyyilLEXezgJhAkgj0cAvro/Uk3sQS14EMamLc4KmAhWSJiKdJ5YfQd4lTrw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768594065; c=relaxed/simple; bh=ooDYCmBCZih6oejY6gt4+eT3U3V3rEDD88ZRToGBFxQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=WVq/+Tyr9RzcFFBEEmE9IxGGMBt+iZ/qk0x053B+bjaItQS8z6uC44aDsnaaxDLANyP8nBf9ECKtpvZXRmHscc2x4lsf/NRP9utl2x685V0MIvJugBQvWCXy6MhEFAMQJp8eIV+6/9AMzdCq7MbbikPWpNnkR5xVzstV0Dwu8T4= 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=VMBcR+nn; arc=none smtp.client-ip=68.232.153.233 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="VMBcR+nn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1768594063; x=1800130063; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ooDYCmBCZih6oejY6gt4+eT3U3V3rEDD88ZRToGBFxQ=; b=VMBcR+nnCg+S2oYPBumlzyWNUO+p4mq+w1nz1tAHcLlpRQ+xzlUibpKR oPMc+Bevj+QhtiTzWRMR18xcRrIfb8eUi3DUEAAv/viIpLqgEwdUWB6Go Qlo7IuQhTHhjFKBjexoME3ZCGaqLlKRdJao4VR9MfCVqmVUIV1ihHHO8Q mUvOPHetqrxj0lLl3Mg5aiqt4XzQdura2CpwsSovtX3rB6eyBIvVHkoNO PhX+BcKbxNepHzTftvtab1xRqqoiouxILYjTszaRWQGDckelEbY/l8SB6 uaOees6j9oF219qA38rfjHZNusHe4LaxkJw0FXOW4JXEmFFTtR9TzP9V5 Q==; X-CSE-ConnectionGUID: MqTcJu0RSESfeq27zLZvsQ== X-CSE-MsgGUID: nanzQAmhQhWZl+2FzKF+Sg== X-IronPort-AV: E=Sophos;i="6.21,232,1763449200"; d="scan'208";a="52013864" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 16 Jan 2026 13:07:40 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.87.72) by chn-vm-ex02.mchp-main.com (10.10.87.72) 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 13:07:07 -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 13:07:07 -0700 From: To: , , , , , , , CC: , , , , Subject: [PATCH v5 23/31] clk: at91: sama5d2: switch to parent_hw and parent_data Date: Fri, 16 Jan 2026 13:07:16 -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 SAMA5D2 clocks to use parent_data and parent_hw whenever possible. Having parent_data instead of parent names improves to clock registration speed and re-parenting. Update the clock registration functions to use parent_data and to use clk_hw Macros. Signed-off-by: Claudiu Beznea [ryan.wanner@microchip.com: Adjust commit message.] Signed-off-by: Ryan Wanner Reviewed-by: Claudiu Beznea --- drivers/clk/at91/sama5d2.c | 153 ++++++++++++++++++++----------------- 1 file changed, 83 insertions(+), 70 deletions(-) diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c index f5d6c7a96cf2..cfff4aabdb3a 100644 --- a/drivers/clk/at91/sama5d2.c +++ b/drivers/clk/at91/sama5d2.c @@ -37,9 +37,9 @@ static const struct clk_pcr_layout sama5d2_pcr_layout =3D= { .pid_mask =3D GENMASK(6, 0), }; =20 -static const struct { +static struct { char *n; - char *p; + struct clk_hw *parent_hw; unsigned long flags; u8 id; } sama5d2_systemck[] =3D { @@ -47,14 +47,14 @@ 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 "pck2", .p =3D "prog2", .id =3D 10 }, - { .n =3D "iscck", .p =3D "masterck_div", .id =3D 18 }, + { .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 }, + { .n =3D "pck2", .id =3D 10 }, + { .n =3D "iscck", .id =3D 18 }, }; =20 static const struct { @@ -164,12 +164,12 @@ static const struct clk_programmable_layout sama5d2_p= rogrammable_layout =3D { =20 static void __init sama5d2_pmc_setup(struct device_node *np) { - struct clk_range range =3D CLK_RANGE(0, 0); + struct clk_hw *hw, *audio_fracck_hw, *usbck_hw, *main_rc_hw, *main_osc_hw; const char *slck_name, *mainxtal_name; - struct pmc_data *sama5d2_pmc; - const char *parent_names[6]; + struct clk_range range =3D CLK_RANGE(0, 0); + struct clk_parent_data parent_data[6]; struct regmap *regmap, *regmap_sfr; - struct clk_hw *hw; + struct pmc_data *sama5d2_pmc; int i; bool bypass; =20 @@ -195,51 +195,51 @@ static void __init sama5d2_pmc_setup(struct device_no= de *np) if (!sama5d2_pmc) return; =20 - hw =3D at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000000, - 100000000); - if (IS_ERR(hw)) + main_rc_hw =3D at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000= 000, + 100000000); + 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 sama5d2_pmc->chws[PMC_MAIN] =3D hw; - - hw =3D at91_clk_register_pll(regmap, "pllack", "mainck", NULL, 0, + hw =3D at91_clk_register_pll(regmap, "pllack", NULL, + &AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MAIN]), 0, &sama5d3_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 sama5d2_pmc->chws[PMC_PLLACK] =3D hw; =20 - hw =3D at91_clk_register_audio_pll_frac(regmap, "audiopll_fracck", - "mainck", NULL); - if (IS_ERR(hw)) + audio_fracck_hw =3D at91_clk_register_audio_pll_frac(regmap, "audiopll_fr= acck", NULL, + &AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MAIN])); + if (IS_ERR(audio_fracck_hw)) goto err_free; =20 - hw =3D at91_clk_register_audio_pll_pad(regmap, "audiopll_padck", - "audiopll_fracck", NULL); + hw =3D at91_clk_register_audio_pll_pad(regmap, "audiopll_padck", NULL, + &AT91_CLK_PD_HW(audio_fracck_hw)); if (IS_ERR(hw)) goto err_free; =20 sama5d2_pmc->chws[PMC_AUDIOPINCK] =3D hw; =20 - hw =3D at91_clk_register_audio_pll_pmc(regmap, "audiopll_pmcck", - "audiopll_fracck", NULL); + hw =3D at91_clk_register_audio_pll_pmc(regmap, "audiopll_pmcck", NULL, + &AT91_CLK_PD_HW(audio_fracck_hw)); if (IS_ERR(hw)) goto err_free; =20 @@ -249,25 +249,26 @@ static void __init sama5d2_pmc_setup(struct device_no= de *np) if (IS_ERR(regmap_sfr)) regmap_sfr =3D NULL; =20 - hw =3D at91_clk_register_utmi(regmap, regmap_sfr, "utmick", "mainck", NUL= L); + hw =3D at91_clk_register_utmi(regmap, regmap_sfr, "utmick", NULL, + &AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MAIN])); if (IS_ERR(hw)) goto err_free; =20 sama5d2_pmc->chws[PMC_UTMI] =3D hw; =20 - parent_names[0] =3D slck_name; - parent_names[1] =3D "mainck"; - parent_names[2] =3D "plladivck"; - parent_names[3] =3D "utmick"; + parent_data[0] =3D AT91_CLK_PD_NAME(slck_name); + parent_data[1] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MAIN]); + parent_data[2] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_PLLACK]); + parent_data[3] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_UTMI]); hw =3D at91_clk_register_master_pres(regmap, "masterck_pres", 4, - parent_names, NULL, + NULL, parent_data, &at91sam9x5_master_layout, &mck_characteristics, &mck_lock); if (IS_ERR(hw)) goto err_free; =20 - hw =3D at91_clk_register_master_div(regmap, "masterck_div", - "masterck_pres", NULL, + hw =3D at91_clk_register_master_div(regmap, "masterck_div", NULL, + &AT91_CLK_PD_HW(hw), &at91sam9x5_master_layout, &mck_characteristics, &mck_lock, CLK_SET_RATE_GATE, 0); @@ -276,31 +277,32 @@ static void __init sama5d2_pmc_setup(struct device_no= de *np) =20 sama5d2_pmc->chws[PMC_MCK] =3D hw; =20 - hw =3D at91_clk_register_h32mx(regmap, "h32mxck", "masterck_div", NULL); + hw =3D at91_clk_register_h32mx(regmap, "h32mxck", NULL, + &AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MCK])); if (IS_ERR(hw)) goto err_free; =20 sama5d2_pmc->chws[PMC_MCK2] =3D hw; =20 - parent_names[0] =3D "plladivck"; - parent_names[1] =3D "utmick"; - hw =3D at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, NULL, 2= ); - if (IS_ERR(hw)) + parent_data[0] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_PLLACK]); + parent_data[1] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_UTMI]); + usbck_hw =3D at91sam9x5_clk_register_usb(regmap, "usbck", NULL, parent_da= ta, 2); + 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 "utmick"; - parent_names[4] =3D "masterck_div"; - parent_names[5] =3D "audiopll_pmcck"; + parent_data[0] =3D AT91_CLK_PD_NAME(slck_name); + parent_data[1] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MAIN]); + parent_data[2] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_PLLACK]); + parent_data[3] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_UTMI]); + parent_data[4] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MCK]); + parent_data[5] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_AUDIOPLLCK]); for (i =3D 0; i < 3; i++) { char name[6]; =20 snprintf(name, sizeof(name), "prog%d", i); =20 hw =3D at91_clk_register_programmable(regmap, name, - parent_names, NULL, 6, i, + NULL, parent_data, 6, i, &sama5d2_programmable_layout, NULL); if (IS_ERR(hw)) @@ -309,9 +311,18 @@ static void __init sama5d2_pmc_setup(struct device_nod= e *np) sama5d2_pmc->pchws[i] =3D hw; } =20 + /* Set systemck parent hws. */ + sama5d2_systemck[0].parent_hw =3D sama5d2_pmc->chws[PMC_MCK]; + sama5d2_systemck[1].parent_hw =3D sama5d2_pmc->chws[PMC_MCK]; + sama5d2_systemck[2].parent_hw =3D usbck_hw; + sama5d2_systemck[3].parent_hw =3D usbck_hw; + sama5d2_systemck[4].parent_hw =3D sama5d2_pmc->pchws[0]; + sama5d2_systemck[5].parent_hw =3D sama5d2_pmc->pchws[1]; + sama5d2_systemck[6].parent_hw =3D sama5d2_pmc->pchws[2]; + sama5d2_systemck[7].parent_hw =3D sama5d2_pmc->chws[PMC_MCK]; for (i =3D 0; i < ARRAY_SIZE(sama5d2_systemck); i++) { - hw =3D at91_clk_register_system(regmap, sama5d2_systemck[i].n, - sama5d2_systemck[i].p, NULL, + hw =3D at91_clk_register_system(regmap, sama5d2_systemck[i].n, NULL, + &AT91_CLK_PD_HW(sama5d2_systemck[i].parent_hw), sama5d2_systemck[i].id, sama5d2_systemck[i].flags); if (IS_ERR(hw)) @@ -324,7 +335,8 @@ static void __init sama5d2_pmc_setup(struct device_node= *np) hw =3D at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock, &sama5d2_pcr_layout, sama5d2_periphck[i].n, - "masterck_div", NULL, + NULL, + &AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MCK]), sama5d2_periphck[i].id, &range, INT_MIN, sama5d2_periphck[i].flags); @@ -338,7 +350,8 @@ static void __init sama5d2_pmc_setup(struct device_node= *np) hw =3D at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock, &sama5d2_pcr_layout, sama5d2_periph32ck[i].n, - "h32mxck", NULL, + NULL, + &AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MCK2]), sama5d2_periph32ck[i].id, &sama5d2_periph32ck[i].r, INT_MIN, 0); @@ -348,17 +361,17 @@ static void __init sama5d2_pmc_setup(struct device_no= de *np) sama5d2_pmc->phws[sama5d2_periph32ck[i].id] =3D hw; } =20 - parent_names[0] =3D slck_name; - parent_names[1] =3D "mainck"; - parent_names[2] =3D "plladivck"; - parent_names[3] =3D "utmick"; - parent_names[4] =3D "masterck_div"; - parent_names[5] =3D "audiopll_pmcck"; + parent_data[0] =3D AT91_CLK_PD_NAME(slck_name); + parent_data[1] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MAIN]); + parent_data[2] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_PLLACK]); + parent_data[3] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_UTMI]); + parent_data[4] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_MCK]); + parent_data[5] =3D AT91_CLK_PD_HW(sama5d2_pmc->chws[PMC_AUDIOPLLCK]); for (i =3D 0; i < ARRAY_SIZE(sama5d2_gck); i++) { hw =3D at91_clk_register_generated(regmap, &pmc_pcr_lock, &sama5d2_pcr_layout, sama5d2_gck[i].n, - parent_names, NULL, NULL, 6, + NULL, parent_data, NULL, 6, sama5d2_gck[i].id, &sama5d2_gck[i].r, sama5d2_gck[i].chg_pid); @@ -369,19 +382,19 @@ static void __init sama5d2_pmc_setup(struct device_no= de *np) } =20 if (regmap_sfr) { - parent_names[0] =3D "i2s0_clk"; - parent_names[1] =3D "i2s0_gclk"; + parent_data[0] =3D AT91_CLK_PD_HW(sama5d2_pmc->phws[54]); /* i2s0_clk */ + parent_data[1] =3D AT91_CLK_PD_HW(sama5d2_pmc->ghws[54]); /* i2s0_gclk */ hw =3D at91_clk_i2s_mux_register(regmap_sfr, "i2s0_muxclk", - parent_names, NULL, 2, 0); + NULL, parent_data, 2, 0); if (IS_ERR(hw)) goto err_free; =20 sama5d2_pmc->chws[PMC_I2S0_MUX] =3D hw; =20 - parent_names[0] =3D "i2s1_clk"; - parent_names[1] =3D "i2s1_gclk"; + parent_data[0] =3D AT91_CLK_PD_HW(sama5d2_pmc->phws[55]); /* i2s1_clk */ + parent_data[1] =3D AT91_CLK_PD_HW(sama5d2_pmc->ghws[55]); /* i2s1_gclk */ hw =3D at91_clk_i2s_mux_register(regmap_sfr, "i2s1_muxclk", - parent_names, NULL, 2, 1); + NULL, parent_data, 2, 1); if (IS_ERR(hw)) goto err_free; =20 --=20 2.43.0