From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gloria.sntech.de (gloria.sntech.de [185.11.138.130]) (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 D3426126C02; Sun, 9 Aug 2026 09:39:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.11.138.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786268394; cv=none; b=Lg5whf5W73g81wmejURlm1pEuQuVIKCYZLaydMlZcj1+hRcds3QXMi1OJ8UdtmvKQDqaVDtiBwjyUcpwSzaCtyvBaqzTX/CFarnpxYdK0iEyzofnR7kPH080gOll1OIpQ5xO7Cd2qBqsYDNXFVoFO9aba2AfNkN9WTzTmH3jCgc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786268394; c=relaxed/simple; bh=GpGoRv5Gng6idSQQ/GKKmkpu3kEexlF6rSrPbCiC/rc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=h9n6JKvsTsBpOnAMSvKezuLKNh95q2QeF6VLf/u8YW10NkOQ/bgK+G1ivWMeD3is7Bx+EFaeLIJNwMtFxuAXblErqjj5KDRM+1rVVAYQ46Op21gOwS/Ox8mOql/C+SZtVNFpZ67OH0pA8JhS/gfoaR/JW9KDy9X8dqgrCs6JHMA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=sntech.de; spf=pass smtp.mailfrom=sntech.de; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b=zZEPnCMz; arc=none smtp.client-ip=185.11.138.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=sntech.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sntech.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b="zZEPnCMz" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=e2tV2waLfrz+hH7M5PM5u39hRzN3D90MNpx1km/idhU=; b=zZEPnCMzwhtm9l/12WM55pnpXJ aXqeg/pf8AM+3OfOkQm9xRDfhU877IiEfaiycVhVXjJXKgtO9/vshQht/ubQcimNW1RFBwadzEPx8 gcFFCrOWc4XUdKhMQkNiX7tRF/K1utYsd18M/xf2uapKYbsXdu/GKDsUq+oKhOT6HCCXgOTgTm9V2 3NPXNTMiFx5s91rKAyXPEyulaFJ8X/gPnklIxGSmFz6ype0gW9/xoR4OQqO6kNiaP4MB5RhLhZV43 KjE36/0/e2HHZ0lO6K2JNMrgNf0OVSrNJJq8Vz7CrQPKFKNbHNpd8lHblTOy4WNvIdBpd4s42FsR6 NXdMd7hg==; From: Heiko =?UTF-8?B?U3TDvGJuZXI=?= To: Linus Walleij , Simon Glass Cc: Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org, Jonas Karlman , linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Conor Dooley , linux-rockchip@lists.infradead.org, Simon Glass , Jeffy Chen , Ye Zhang , huang lin , linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 1/4] pinctrl: rockchip: Decode drive strength in the get function Date: Sun, 09 Aug 2026 11:39:33 +0200 Message-ID: <8942531.Sb9uPGUboI@diego> In-Reply-To: <20260729132736.3807082-2-sjg@chromium.org> References: <20260729132736.3807082-1-sjg@chromium.org> <20260729132736.3807082-2-sjg@chromium.org> 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" Am Mittwoch, 29. Juli 2026, 15:27:25 Mitteleurop=C3=A4ische Sommerzeit schr= ieb Simon Glass: > The decoding of the 2-bit and 8-bit level drive-strength values sits in > rockchip_set_drive_perpin(), where it is unreachable: the SoCs whose > banks declare these drive types (RK3506 and RV1103B) take the early > ctrl->type branch in the set path, and the read-and-decode logic in a > set function has no purpose. Meanwhile rockchip_get_drive_perpin() > lacks the decoding, so pin_config_get() and the debugfs output report > -EINVAL for these SoCs. >=20 > Move the two cases to rockchip_get_drive_perpin(), where they belong. >=20 > Fixes: dbd2317d7b9f ("pinctrl: rockchip: Add rk3506 pinctrl support") > Signed-off-by: Simon Glass Reviewed-by: Heiko Stuebner > --- >=20 > Changes in v3: > - Add new patch moving the drive-strength decoding to the get function >=20 > drivers/pinctrl/pinctrl-rockchip.c | 38 +++++++++++++++--------------- > 1 file changed, 19 insertions(+), 19 deletions(-) >=20 > diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl= =2Drockchip.c > index 7e0fcd45fd26..08a46a04a815 100644 > --- a/drivers/pinctrl/pinctrl-rockchip.c > +++ b/drivers/pinctrl/pinctrl-rockchip.c > @@ -3267,6 +3267,25 @@ static int rockchip_get_drive_perpin(struct rockch= ip_pin_bank *bank, > case DRV_TYPE_IO_1V8_ONLY: > rmask_bits =3D RK3288_DRV_BITS_PER_PIN; > break; > + case DRV_TYPE_IO_LEVEL_2_BIT: > + ret =3D regmap_read(regmap, reg, &data); > + if (ret) > + return ret; > + data >>=3D bit; > + > + return data & 0x3; > + case DRV_TYPE_IO_LEVEL_8_BIT: > + ret =3D regmap_read(regmap, reg, &data); > + if (ret) > + return ret; > + data >>=3D bit; > + data &=3D (1 << 8) - 1; > + > + ret =3D hweight8(data); > + if (ret > 0) > + return ret - 1; > + else > + return -EINVAL; > default: > dev_err(dev, "unsupported pinctrl drive type: %d\n", drv_type); > return -EINVAL; > @@ -3390,25 +3409,6 @@ static int rockchip_set_drive_perpin(struct rockch= ip_pin_bank *bank, > case DRV_TYPE_IO_1V8_ONLY: > rmask_bits =3D RK3288_DRV_BITS_PER_PIN; > break; > - case DRV_TYPE_IO_LEVEL_2_BIT: > - ret =3D regmap_read(regmap, reg, &data); > - if (ret) > - return ret; > - data >>=3D bit; > - > - return data & 0x3; > - case DRV_TYPE_IO_LEVEL_8_BIT: > - ret =3D regmap_read(regmap, reg, &data); > - if (ret) > - return ret; > - data >>=3D bit; > - data &=3D (1 << 8) - 1; > - > - ret =3D hweight8(data); > - if (ret > 0) > - return ret - 1; > - else > - return -EINVAL; > default: > dev_err(dev, "unsupported pinctrl drive type: %d\n", drv_type); > return -EINVAL; >=20