[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CACRpkda8_nV1UiDO0_qvcc_z8ODQqckwaCGg6A5-Qm0NADi_Ng@mail.gmail.com>
Date: Mon, 11 Sep 2023 10:58:58 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Tzuyi Chang <tychang@...ltek.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, linux-gpio@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/7] pinctrl: realtek: Add common pinctrl driver for
Realtek DHC RTD SoCs
Hi Tzuyi,
thanks for the new version! This is starting to look really good.
On Thu, Aug 24, 2023 at 12:57 PM Tzuyi Chang <tychang@...ltek.com> wrote:
> The RTD SoCs share a similar design for pinmux and pinconfig.
> This common pinctrl driver supports different variants within the RTD
> SoCs.
>
> Signed-off-by: Tzuyi Chang <tychang@...ltek.com>
(...)
> +static void rtd_pinctrl_update_bits(struct rtd_pinctrl *data, unsigned int offset,
> + unsigned int mask, unsigned int val)
> +{
> + unsigned int reg = readl_relaxed(data->base + offset);
> +
> + reg &= ~mask;
> + reg |= (mask & val);
> + writel_relaxed(reg, data->base + offset);
> +}
This function is essentially a reimplementation of regmap_update_bits()
using regmap_mmio with .user_relaxed_mmio property set in the
config.
Have you considered just using regmap-mmio for this?
Yours,
Linus Walleij
Powered by blists - more mailing lists