From nobody Wed Dec 17 12:30:16 2025 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 680B62803F4; Thu, 6 Mar 2025 23:58:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741305525; cv=none; b=nPZo3fiqMX/VWl3dq21xZc3YnW5Qbv79aognwFu3i5zGUO7NxSgAWDPwoqvpK02oJ2vzK1i220YIM9G4rOXU249hAkk6/DsZTE+IpQDUp4YdewWiLxBz56djj1xMOrAVurWAJ+J8pc03TG3+pLugheu55EB2voM6xiZhni8eaTs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741305525; c=relaxed/simple; bh=5311CB7PKuTOYh7jvOKlQAbT2S8zbJOs3GqaLPvEQYI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=TfFHXZB7JnQexZAEqvIcRR7/fwvX+1b+vzearnD2GdnOBZxAMrYriENZwTe9tX6gCaTMzFlCY4QaArXk23Jq4gpjOC3SI9dWnuN+rHV05eASjRUqIgpBUrvEA2AKVEQKD4ZlmlOoXK/n6e+cB1YUcMSRf2oBeqYYUEpQDIRqECY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8D466169E; Thu, 6 Mar 2025 15:58:56 -0800 (PST) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 214F73F673; Thu, 6 Mar 2025 15:58:42 -0800 (PST) From: Andre Przywara To: Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v4 4/8] pinctrl: sunxi: support moved power configuration registers Date: Thu, 6 Mar 2025 23:58:23 +0000 Message-ID: <20250306235827.4895-5-andre.przywara@arm.com> X-Mailer: git-send-email 2.46.3 In-Reply-To: <20250306235827.4895-1-andre.przywara@arm.com> References: <20250306235827.4895-1-andre.przywara@arm.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 Allwinner pincontroller IP features some registers to control the withstand voltage of each pin group. So far those registers were always located at the same offset, but the A523 SoC has moved them (probably to accommodate all eleven pin banks). Add a flag to note this feature, and use that to program the registers either at offset 0x340 or 0x380. So far no pincontroller driver uses this flag, but we need it for the upcoming A523 support. Signed-off-by: Andre Przywara Reviewed-by: Jernej Skrabec --- drivers/pinctrl/sunxi/pinctrl-sunxi.c | 15 +++++++++++---- drivers/pinctrl/sunxi/pinctrl-sunxi.h | 7 +++++-- 2 files changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/= pinctrl-sunxi.c index 83a031ceb29f2..f1c5a991cf7b5 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -736,9 +736,11 @@ static int sunxi_pinctrl_set_io_bias_cfg(struct sunxi_= pinctrl *pctl, val =3D uV > 1800000 && uV <=3D 2500000 ? BIT(bank) : 0; =20 raw_spin_lock_irqsave(&pctl->lock, flags); - reg =3D readl(pctl->membase + PIO_POW_MOD_CTL_REG); + reg =3D readl(pctl->membase + pctl->pow_mod_sel_offset + + PIO_POW_MOD_CTL_OFS); reg &=3D ~BIT(bank); - writel(reg | val, pctl->membase + PIO_POW_MOD_CTL_REG); + writel(reg | val, pctl->membase + pctl->pow_mod_sel_offset + + PIO_POW_MOD_CTL_OFS); raw_spin_unlock_irqrestore(&pctl->lock, flags); =20 fallthrough; @@ -746,9 +748,10 @@ static int sunxi_pinctrl_set_io_bias_cfg(struct sunxi_= pinctrl *pctl, val =3D uV <=3D 1800000 ? 1 : 0; =20 raw_spin_lock_irqsave(&pctl->lock, flags); - reg =3D readl(pctl->membase + PIO_POW_MOD_SEL_REG); + reg =3D readl(pctl->membase + pctl->pow_mod_sel_offset); reg &=3D ~(1 << bank); - writel(reg | val << bank, pctl->membase + PIO_POW_MOD_SEL_REG); + writel(reg | val << bank, + pctl->membase + pctl->pow_mod_sel_offset); raw_spin_unlock_irqrestore(&pctl->lock, flags); return 0; default: @@ -1520,6 +1523,10 @@ int sunxi_pinctrl_init_with_flags(struct platform_de= vice *pdev, pctl->pull_regs_offset =3D PULL_REGS_OFFSET; pctl->dlevel_field_width =3D DLEVEL_FIELD_WIDTH; } + if (flags & SUNXI_PINCTRL_ELEVEN_BANKS) + pctl->pow_mod_sel_offset =3D PIO_11B_POW_MOD_SEL_REG; + else + pctl->pow_mod_sel_offset =3D PIO_POW_MOD_SEL_REG; =20 pctl->irq_array =3D devm_kcalloc(&pdev->dev, IRQ_PER_BANK * pctl->desc->irq_banks, diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.h b/drivers/pinctrl/sunxi/= pinctrl-sunxi.h index 6cf721876d89d..742fc795c7664 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.h +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.h @@ -87,9 +87,11 @@ #define SUNXI_PINCTRL_VARIANT_MASK GENMASK(7, 0) #define SUNXI_PINCTRL_NEW_REG_LAYOUT BIT(8) #define SUNXI_PINCTRL_PORTF_SWITCH BIT(9) +#define SUNXI_PINCTRL_ELEVEN_BANKS BIT(10) =20 -#define PIO_POW_MOD_SEL_REG 0x340 -#define PIO_POW_MOD_CTL_REG 0x344 +#define PIO_POW_MOD_SEL_REG 0x340 +#define PIO_11B_POW_MOD_SEL_REG 0x380 +#define PIO_POW_MOD_CTL_OFS 0x004 =20 #define PIO_BANK_K_OFFSET 0x500 =20 @@ -173,6 +175,7 @@ struct sunxi_pinctrl { u32 bank_mem_size; u32 pull_regs_offset; u32 dlevel_field_width; + u32 pow_mod_sel_offset; }; =20 #define SUNXI_PIN(_pin, ...) \ --=20 2.46.3