From patchwork Fri Aug 2 14:52:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Detlev Casanova X-Patchwork-Id: 816391 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 3648E2101A9; Fri, 2 Aug 2024 14:53:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722610440; cv=none; b=k6O1KoUrfsbmUhigzywdUwQCE9EsVmzBtWzrHVDc6BJMtOukdOhWWU2SJk5Uv8ZmdTx4OX9GK6Y30Usq8yhLIGF0Qyfq9BaWtfbNnkqL7w4QLFIvJI6WRoRlRPKtV06sFs+fLStz4QVovGv3uPHivW0PXnh906qqroOs8zr/SUM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722610440; c=relaxed/simple; bh=y5rEC7HOrQCuIdt3pnIJzC+RrLsH889/N2ljdUkf1/k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OOINh1rh4X+477fXoFihCaLywxEOC9CxcTZ4qkhVoJUo1WbSE30X9QE3PmYvIqSUFg++WKRCA98axlpCEQY2OtkbBEoCVqU/nuM4hz2YD+Yv2dJZqfHGzxvJE5GzTt+hrk1ZaIA3/HByAY8e8mafxnxeUYOXm84Ae5SZrNSu/K4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=1bBlh+dI; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="1bBlh+dI" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1722610436; bh=y5rEC7HOrQCuIdt3pnIJzC+RrLsH889/N2ljdUkf1/k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1bBlh+dIHaQ2NCTsI4rLsxIYo5v0YyZlJ/2PIyujW9OiQEliAuF5+KNDWVfeZDQEe m1wIdWUeba4yfNJu8OD72DusyG1GluporqNQveTj8c9krncT3HFK8Xd+S4xM5wkEQX umLhHgm+zqrzAOcZTZX4IB7YWUS3vpRHCdWbBN7QCpaUN2bZbe9/Z2kpvOO0SXfNDg DRLDHrRFB5DeDU+Y39T3g903Fev8NRuQHgNwdqKu5eV5kUIo+y4FP1d/lwJGuBQ/h0 G/m74E/PrRR1J1Vp1NpbSoXA4cYPqFjpbTcPCvCaY1mOnqTtVpd7JJDlHxhKLa7/ct 26tHYRHed4SLA== Received: from trenzalore.hitronhub.home (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: detlev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id BEC153782214; Fri, 2 Aug 2024 14:53:54 +0000 (UTC) From: Detlev Casanova To: linux-kernel@vger.kernel.org Cc: Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, Steven Liu , Detlev Casanova Subject: [PATCH 1/2] pinctrl: rockchip: Add rk3576 pinctrl support Date: Fri, 2 Aug 2024 10:52:03 -0400 Message-ID: <20240802145458.291890-2-detlev.casanova@collabora.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240802145458.291890-1-detlev.casanova@collabora.com> References: <20240802145458.291890-1-detlev.casanova@collabora.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Steven Liu Add support for the 5 rk3576 GPIO banks. This also adds support for optionnal support of the sys-grf syscon, used for i3c software controlled weak pull-up. Signed-off-by: Steven Liu [rebase, reword commit message] Signed-off-by: Detlev Casanova --- drivers/pinctrl/pinctrl-rockchip.c | 228 +++++++++++++++++++++++++++++ drivers/pinctrl/pinctrl-rockchip.h | 2 + 2 files changed, 230 insertions(+) diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index 0eacaf10c640f..110ed81d650be 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -84,6 +84,27 @@ }, \ } +#define PIN_BANK_IOMUX_FLAGS_OFFSET_PULL_FLAGS(id, pins, label, iom0, \ + iom1, iom2, iom3, \ + offset0, offset1, \ + offset2, offset3, pull0, \ + pull1, pull2, pull3) \ + { \ + .bank_num = id, \ + .nr_pins = pins, \ + .name = label, \ + .iomux = { \ + { .type = iom0, .offset = offset0 }, \ + { .type = iom1, .offset = offset1 }, \ + { .type = iom2, .offset = offset2 }, \ + { .type = iom3, .offset = offset3 }, \ + }, \ + .pull_type[0] = pull0, \ + .pull_type[1] = pull1, \ + .pull_type[2] = pull2, \ + .pull_type[3] = pull3, \ + } + #define PIN_BANK_DRV_FLAGS(id, pins, label, type0, type1, type2, type3) \ { \ .bank_num = id, \ @@ -1120,6 +1141,11 @@ static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin) if (bank->recalced_mask & BIT(pin)) rockchip_get_recalced_mux(bank, pin, ®, &bit, &mask); + if (ctrl->type == RK3576) { + if ((bank->bank_num == 0) && (pin >= RK_PB4) && (pin <= RK_PB7)) + reg += 0x1FF4; /* GPIO0_IOC_GPIO0B_IOMUX_SEL_H */ + } + if (ctrl->type == RK3588) { if (bank->bank_num == 0) { if ((pin >= RK_PB4) && (pin <= RK_PD7)) { @@ -1193,6 +1219,7 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux) struct device *dev = info->dev; int iomux_num = (pin / 8); struct regmap *regmap; + struct regmap *regmap_sys; int reg, ret, mask, mux_type; u8 bit; u32 data, rmask, route_location, route_reg, route_val; @@ -1213,6 +1240,8 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux) else regmap = info->regmap_base; + regmap_sys = info->regmap_sys_grf; + /* get basic quadrupel of mux registers and the correct reg inside */ mux_type = bank->iomux[iomux_num].type; reg = bank->iomux[iomux_num].offset; @@ -1234,6 +1263,20 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux) if (bank->recalced_mask & BIT(pin)) rockchip_get_recalced_mux(bank, pin, ®, &bit, &mask); + if (ctrl->type == RK3576) { + if ((bank->bank_num == 0) && (pin >= RK_PB4) && (pin <= RK_PB7)) + reg += 0x1FF4; /* GPIO0_IOC_GPIO0B_IOMUX_SEL_H */ + /* i3c0 weakpull controlled by software */ + if (((bank->bank_num == 0) && (pin == RK_PC5) && (mux == 0xb)) || + ((bank->bank_num == 1) && (pin == RK_PD1) && (mux == 0xa))) + regmap_update_bits(regmap_sys, 0x4, 0xc000c0, 0xc000c0); + /* i3c1 weakpull controlled by software */ + if (((bank->bank_num == 2) && (pin == RK_PA5) && (mux == 0xe)) || + ((bank->bank_num == 2) && (pin == RK_PD6) && (mux == 0xc)) || + ((bank->bank_num == 3) && (pin == RK_PD1) && (mux == 0xb))) + regmap_update_bits(regmap_sys, 0x4, 0x3000300, 0x3000300); + } + if (ctrl->type == RK3588) { if (bank->bank_num == 0) { if ((pin >= RK_PB4) && (pin <= RK_PD7)) { @@ -2038,6 +2081,142 @@ static int rk3568_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, return 0; } +#define RK3576_DRV_BITS_PER_PIN 4 +#define RK3576_DRV_PINS_PER_REG 4 +#define RK3576_DRV_GPIO0_AL_OFFSET 0x10 +#define RK3576_DRV_GPIO0_BH_OFFSET 0x2014 +#define RK3576_DRV_GPIO1_OFFSET 0x6020 +#define RK3576_DRV_GPIO2_OFFSET 0x6040 +#define RK3576_DRV_GPIO3_OFFSET 0x6060 +#define RK3576_DRV_GPIO4_AL_OFFSET 0x6080 +#define RK3576_DRV_GPIO4_CL_OFFSET 0xA090 +#define RK3576_DRV_GPIO4_DL_OFFSET 0xB098 + +static int rk3576_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, + int pin_num, struct regmap **regmap, + int *reg, u8 *bit) +{ + struct rockchip_pinctrl *info = bank->drvdata; + + *regmap = info->regmap_base; + + if (bank->bank_num == 0 && pin_num < 12) + *reg = RK3576_DRV_GPIO0_AL_OFFSET; + else if (bank->bank_num == 0) + *reg = RK3576_DRV_GPIO0_BH_OFFSET - 0xc; + else if (bank->bank_num == 1) + *reg = RK3576_DRV_GPIO1_OFFSET; + else if (bank->bank_num == 2) + *reg = RK3576_DRV_GPIO2_OFFSET; + else if (bank->bank_num == 3) + *reg = RK3576_DRV_GPIO3_OFFSET; + else if (bank->bank_num == 4 && pin_num < 16) + *reg = RK3576_DRV_GPIO4_AL_OFFSET; + else if (bank->bank_num == 4 && pin_num < 24) + *reg = RK3576_DRV_GPIO4_CL_OFFSET - 0x10; + else if (bank->bank_num == 4) + *reg = RK3576_DRV_GPIO4_DL_OFFSET - 0x18; + else + dev_err(info->dev, "unsupported bank_num %d\n", bank->bank_num); + + *reg += ((pin_num / RK3576_DRV_PINS_PER_REG) * 4); + *bit = pin_num % RK3576_DRV_PINS_PER_REG; + *bit *= RK3576_DRV_BITS_PER_PIN; + + return 0; +} + +#define RK3576_PULL_BITS_PER_PIN 2 +#define RK3576_PULL_PINS_PER_REG 8 +#define RK3576_PULL_GPIO0_AL_OFFSET 0x20 +#define RK3576_PULL_GPIO0_BH_OFFSET 0x2028 +#define RK3576_PULL_GPIO1_OFFSET 0x6110 +#define RK3576_PULL_GPIO2_OFFSET 0x6120 +#define RK3576_PULL_GPIO3_OFFSET 0x6130 +#define RK3576_PULL_GPIO4_AL_OFFSET 0x6140 +#define RK3576_PULL_GPIO4_CL_OFFSET 0xA148 +#define RK3576_PULL_GPIO4_DL_OFFSET 0xB14C + +static int rk3576_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, + int pin_num, struct regmap **regmap, + int *reg, u8 *bit) +{ + struct rockchip_pinctrl *info = bank->drvdata; + + *regmap = info->regmap_base; + + if (bank->bank_num == 0 && pin_num < 12) + *reg = RK3576_PULL_GPIO0_AL_OFFSET; + else if (bank->bank_num == 0) + *reg = RK3576_PULL_GPIO0_BH_OFFSET - 0x4; + else if (bank->bank_num == 1) + *reg = RK3576_PULL_GPIO1_OFFSET; + else if (bank->bank_num == 2) + *reg = RK3576_PULL_GPIO2_OFFSET; + else if (bank->bank_num == 3) + *reg = RK3576_PULL_GPIO3_OFFSET; + else if (bank->bank_num == 4 && pin_num < 16) + *reg = RK3576_PULL_GPIO4_AL_OFFSET; + else if (bank->bank_num == 4 && pin_num < 24) + *reg = RK3576_PULL_GPIO4_CL_OFFSET - 0x8; + else if (bank->bank_num == 4) + *reg = RK3576_PULL_GPIO4_DL_OFFSET - 0xc; + else + dev_err(info->dev, "unsupported bank_num %d\n", bank->bank_num); + + *reg += ((pin_num / RK3576_PULL_PINS_PER_REG) * 4); + *bit = pin_num % RK3576_PULL_PINS_PER_REG; + *bit *= RK3576_PULL_BITS_PER_PIN; + + return 0; +} + +#define RK3576_SMT_BITS_PER_PIN 1 +#define RK3576_SMT_PINS_PER_REG 8 +#define RK3576_SMT_GPIO0_AL_OFFSET 0x30 +#define RK3576_SMT_GPIO0_BH_OFFSET 0x2040 +#define RK3576_SMT_GPIO1_OFFSET 0x6210 +#define RK3576_SMT_GPIO2_OFFSET 0x6220 +#define RK3576_SMT_GPIO3_OFFSET 0x6230 +#define RK3576_SMT_GPIO4_AL_OFFSET 0x6240 +#define RK3576_SMT_GPIO4_CL_OFFSET 0xA248 +#define RK3576_SMT_GPIO4_DL_OFFSET 0xB24C + +static int rk3576_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank, + int pin_num, + struct regmap **regmap, + int *reg, u8 *bit) +{ + struct rockchip_pinctrl *info = bank->drvdata; + + *regmap = info->regmap_base; + + if (bank->bank_num == 0 && pin_num < 12) + *reg = RK3576_SMT_GPIO0_AL_OFFSET; + else if (bank->bank_num == 0) + *reg = RK3576_SMT_GPIO0_BH_OFFSET - 0x4; + else if (bank->bank_num == 1) + *reg = RK3576_SMT_GPIO1_OFFSET; + else if (bank->bank_num == 2) + *reg = RK3576_SMT_GPIO2_OFFSET; + else if (bank->bank_num == 3) + *reg = RK3576_SMT_GPIO3_OFFSET; + else if (bank->bank_num == 4 && pin_num < 16) + *reg = RK3576_SMT_GPIO4_AL_OFFSET; + else if (bank->bank_num == 4 && pin_num < 24) + *reg = RK3576_SMT_GPIO4_CL_OFFSET - 0x8; + else if (bank->bank_num == 4) + *reg = RK3576_SMT_GPIO4_DL_OFFSET - 0xc; + else + dev_err(info->dev, "unsupported bank_num %d\n", bank->bank_num); + + *reg += ((pin_num / RK3576_SMT_PINS_PER_REG) * 4); + *bit = pin_num % RK3576_SMT_PINS_PER_REG; + *bit *= RK3576_SMT_BITS_PER_PIN; + + return 0; +} + #define RK3588_PMU1_IOC_REG (0x0000) #define RK3588_PMU2_IOC_REG (0x4000) #define RK3588_BUS_IOC_REG (0x8000) @@ -2332,6 +2511,10 @@ static int rockchip_set_drive_perpin(struct rockchip_pin_bank *bank, rmask_bits = RK3568_DRV_BITS_PER_PIN; ret = (1 << (strength + 1)) - 1; goto config; + } else if (ctrl->type == RK3576) { + rmask_bits = RK3576_DRV_BITS_PER_PIN; + ret = ((strength & BIT(2)) >> 2) | ((strength & BIT(0)) << 2) | (strength & BIT(1)); + goto config; } if (ctrl->type == RV1126) { @@ -2469,6 +2652,7 @@ static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num) case RK3368: case RK3399: case RK3568: + case RK3576: case RK3588: pull_type = bank->pull_type[pin_num / 8]; data >>= bit; @@ -2528,6 +2712,7 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank, case RK3368: case RK3399: case RK3568: + case RK3576: case RK3588: pull_type = bank->pull_type[pin_num / 8]; ret = -EINVAL; @@ -2793,6 +2978,7 @@ static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl, case RK3368: case RK3399: case RK3568: + case RK3576: case RK3588: return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT); } @@ -3439,6 +3625,15 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev) } } + /* try to find the optional reference to the sys_grf syscon */ + node = of_parse_phandle(np, "rockchip,sys-grf", 0); + if (node) { + info->regmap_sys_grf = syscon_node_to_regmap(node); + of_node_put(node); + if (IS_ERR(info->regmap_sys_grf)) + return PTR_ERR(info->regmap_sys_grf); + } + /* try to find the optional reference to the pmu syscon */ node = of_parse_phandle(np, "rockchip,pmu", 0); if (node) { @@ -3949,6 +4144,37 @@ static struct rockchip_pin_ctrl rk3568_pin_ctrl = { .schmitt_calc_reg = rk3568_calc_schmitt_reg_and_bit, }; +#define RK3576_PIN_BANK(ID, LABEL, OFFSET0, OFFSET1, OFFSET2, OFFSET3) \ + PIN_BANK_IOMUX_FLAGS_OFFSET_PULL_FLAGS(ID, 32, LABEL, \ + IOMUX_WIDTH_4BIT, \ + IOMUX_WIDTH_4BIT, \ + IOMUX_WIDTH_4BIT, \ + IOMUX_WIDTH_4BIT, \ + OFFSET0, OFFSET1, \ + OFFSET2, OFFSET3, \ + PULL_TYPE_IO_1V8_ONLY, \ + PULL_TYPE_IO_1V8_ONLY, \ + PULL_TYPE_IO_1V8_ONLY, \ + PULL_TYPE_IO_1V8_ONLY) + +static struct rockchip_pin_bank rk3576_pin_banks[] = { + RK3576_PIN_BANK(0, "gpio0", 0, 0x8, 0x2004, 0x200C), + RK3576_PIN_BANK(1, "gpio1", 0x4020, 0x4028, 0x4030, 0x4038), + RK3576_PIN_BANK(2, "gpio2", 0x4040, 0x4048, 0x4050, 0x4058), + RK3576_PIN_BANK(3, "gpio3", 0x4060, 0x4068, 0x4070, 0x4078), + RK3576_PIN_BANK(4, "gpio4", 0x4080, 0x4088, 0xA390, 0xB398), +}; + +static struct rockchip_pin_ctrl rk3576_pin_ctrl __maybe_unused = { + .pin_banks = rk3576_pin_banks, + .nr_banks = ARRAY_SIZE(rk3576_pin_banks), + .label = "RK3576-GPIO", + .type = RK3576, + .pull_calc_reg = rk3576_calc_pull_reg_and_bit, + .drv_calc_reg = rk3576_calc_drv_reg_and_bit, + .schmitt_calc_reg = rk3576_calc_schmitt_reg_and_bit, +}; + static struct rockchip_pin_bank rk3588_pin_banks[] = { RK3588_PIN_BANK_FLAGS(0, 32, "gpio0", IOMUX_WIDTH_4BIT, PULL_TYPE_IO_1V8_ONLY), @@ -4005,6 +4231,8 @@ static const struct of_device_id rockchip_pinctrl_dt_match[] = { .data = &rk3399_pin_ctrl }, { .compatible = "rockchip,rk3568-pinctrl", .data = &rk3568_pin_ctrl }, + { .compatible = "rockchip,rk3576-pinctrl", + .data = &rk3576_pin_ctrl }, { .compatible = "rockchip,rk3588-pinctrl", .data = &rk3588_pin_ctrl }, {}, diff --git a/drivers/pinctrl/pinctrl-rockchip.h b/drivers/pinctrl/pinctrl-rockchip.h index 849266f8b1913..0b2b56014b173 100644 --- a/drivers/pinctrl/pinctrl-rockchip.h +++ b/drivers/pinctrl/pinctrl-rockchip.h @@ -197,6 +197,7 @@ enum rockchip_pinctrl_type { RK3368, RK3399, RK3568, + RK3576, RK3588, }; @@ -455,6 +456,7 @@ struct rockchip_pinctrl { int reg_size; struct regmap *regmap_pull; struct regmap *regmap_pmu; + struct regmap *regmap_sys_grf; struct device *dev; struct rockchip_pin_ctrl *ctrl; struct pinctrl_desc pctl;