From patchwork Mon May 14 11:59:51 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Wu X-Patchwork-Id: 912900 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=rock-chips.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40kztk6c00z9s08 for ; Mon, 14 May 2018 22:06:06 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752329AbeENMGF (ORCPT ); Mon, 14 May 2018 08:06:05 -0400 Received: from regular1.263xmail.com ([211.150.99.136]:59783 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752288AbeENMGE (ORCPT ); Mon, 14 May 2018 08:06:04 -0400 X-Greylist: delayed 359 seconds by postgrey-1.27 at vger.kernel.org; Mon, 14 May 2018 08:06:03 EDT Received: from david.wu?rock-chips.com (unknown [192.168.167.209]) by regular1.263xmail.com (Postfix) with ESMTP id 3152C55; Mon, 14 May 2018 19:59:59 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id 38D2D369; Mon, 14 May 2018 19:59:59 +0800 (CST) X-IP-DOMAINF: 1 X-RL-SENDER: david.wu@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: david.wu@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: wdc@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 199279JCS5T; Mon, 14 May 2018 20:00:00 +0800 (CST) From: David Wu To: heiko@sntech.de, linus.walleij@linaro.org Cc: huangtao@rock-chips.com, linux-rockchip@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, David Wu Subject: [PATCH] pinctrl: rockchip: Add pinctrl support for PX30 Date: Mon, 14 May 2018 19:59:51 +0800 Message-Id: <1526299191-1140-1-git-send-email-david.wu@rock-chips.com> X-Mailer: git-send-email 2.7.4 Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org There are 4 banks (GPIO0 ~ GPIO3), bank0 is in PD_PMU subsystem, bank1/bank2/bank3 are in PD_BUS subsystem. Signed-off-by: David Wu Reviewed-by: Heiko Stuebner --- .../bindings/pinctrl/rockchip,pinctrl.txt | 1 + drivers/pinctrl/pinctrl-rockchip.c | 194 +++++++++++++++++++++ 2 files changed, 195 insertions(+) diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt index a01a3b8..0919db2 100644 --- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt @@ -20,6 +20,7 @@ defined as gpio sub-nodes of the pinmux controller. Required properties for iomux controller: - compatible: should be + "rockchip,px30-pinctrl": for Rockchip PX30 "rockchip,rv1108-pinctrl": for Rockchip RV1108 "rockchip,rk2928-pinctrl": for Rockchip RK2928 "rockchip,rk3066a-pinctrl": for Rockchip RK3066a diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index 3924779..88d4077 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -59,6 +59,7 @@ #define GPIO_LS_SYNC 0x60 enum rockchip_pinctrl_type { + PX30, RV1108, RK2928, RK3066B, @@ -701,6 +702,66 @@ static void rockchip_get_recalced_mux(struct rockchip_pin_bank *bank, int pin, *bit = data->bit; } +static struct rockchip_mux_route_data px30_mux_route_data[] = { + { + /* cif-d2m0 */ + .bank_num = 2, + .pin = 0, + .func = 1, + .route_offset = 0x184, + .route_val = BIT(16 + 7), + }, { + /* cif-d2m1 */ + .bank_num = 3, + .pin = 3, + .func = 3, + .route_offset = 0x184, + .route_val = BIT(16 + 7) | BIT(7), + }, { + /* pdm-m0 */ + .bank_num = 3, + .pin = 22, + .func = 2, + .route_offset = 0x184, + .route_val = BIT(16 + 8), + }, { + /* pdm-m1 */ + .bank_num = 2, + .pin = 22, + .func = 1, + .route_offset = 0x184, + .route_val = BIT(16 + 8) | BIT(8), + }, { + /* uart2-rxm0 */ + .bank_num = 1, + .pin = 27, + .func = 2, + .route_offset = 0x184, + .route_val = BIT(16 + 10), + }, { + /* uart2-rxm1 */ + .bank_num = 2, + .pin = 14, + .func = 2, + .route_offset = 0x184, + .route_val = BIT(16 + 10) | BIT(10), + }, { + /* uart3-rxm0 */ + .bank_num = 0, + .pin = 17, + .func = 2, + .route_offset = 0x184, + .route_val = BIT(16 + 9), + }, { + /* uart3-rxm1 */ + .bank_num = 1, + .pin = 15, + .func = 2, + .route_offset = 0x184, + .route_val = BIT(16 + 9) | BIT(9), + }, +}; + static struct rockchip_mux_route_data rk3128_mux_route_data[] = { { /* spi-0 */ @@ -1202,6 +1263,97 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux) return ret; } +#define PX30_PULL_PMU_OFFSET 0x10 +#define PX30_PULL_GRF_OFFSET 0x60 +#define PX30_PULL_BITS_PER_PIN 2 +#define PX30_PULL_PINS_PER_REG 8 +#define PX30_PULL_BANK_STRIDE 16 + +static void px30_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; + + /* The first 32 pins of the first bank are located in PMU */ + if (bank->bank_num == 0) { + *regmap = info->regmap_pmu; + *reg = PX30_PULL_PMU_OFFSET; + } else { + *regmap = info->regmap_base; + *reg = PX30_PULL_GRF_OFFSET; + + /* correct the offset, as we're starting with the 2nd bank */ + *reg -= 0x10; + *reg += bank->bank_num * PX30_PULL_BANK_STRIDE; + } + + *reg += ((pin_num / PX30_PULL_PINS_PER_REG) * 4); + *bit = (pin_num % PX30_PULL_PINS_PER_REG); + *bit *= PX30_PULL_BITS_PER_PIN; +} + +#define PX30_DRV_PMU_OFFSET 0x20 +#define PX30_DRV_GRF_OFFSET 0xf0 +#define PX30_DRV_BITS_PER_PIN 2 +#define PX30_DRV_PINS_PER_REG 8 +#define PX30_DRV_BANK_STRIDE 16 + +static void px30_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; + + /* The first 32 pins of the first bank are located in PMU */ + if (bank->bank_num == 0) { + *regmap = info->regmap_pmu; + *reg = PX30_DRV_PMU_OFFSET; + } else { + *regmap = info->regmap_base; + *reg = PX30_DRV_GRF_OFFSET; + + /* correct the offset, as we're starting with the 2nd bank */ + *reg -= 0x10; + *reg += bank->bank_num * PX30_DRV_BANK_STRIDE; + } + + *reg += ((pin_num / PX30_DRV_PINS_PER_REG) * 4); + *bit = (pin_num % PX30_DRV_PINS_PER_REG); + *bit *= PX30_DRV_BITS_PER_PIN; +} + +#define PX30_SCHMITT_PMU_OFFSET 0x38 +#define PX30_SCHMITT_GRF_OFFSET 0xc0 +#define PX30_SCHMITT_PINS_PER_PMU_REG 16 +#define PX30_SCHMITT_BANK_STRIDE 16 +#define PX30_SCHMITT_PINS_PER_GRF_REG 8 + +static int px30_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; + int pins_per_reg; + + if (bank->bank_num == 0) { + *regmap = info->regmap_pmu; + *reg = PX30_SCHMITT_PMU_OFFSET; + pins_per_reg = PX30_SCHMITT_PINS_PER_PMU_REG; + } else { + *regmap = info->regmap_base; + *reg = PX30_SCHMITT_GRF_OFFSET; + pins_per_reg = PX30_SCHMITT_PINS_PER_GRF_REG; + *reg += (bank->bank_num - 1) * PX30_SCHMITT_BANK_STRIDE; + } + + *reg += ((pin_num / pins_per_reg) * 4); + *bit = pin_num % pins_per_reg; + + return 0; +} + #define RV1108_PULL_PMU_OFFSET 0x10 #define RV1108_PULL_OFFSET 0x110 #define RV1108_PULL_PINS_PER_REG 8 @@ -1798,6 +1950,7 @@ static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num) return !(data & BIT(bit)) ? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT : PIN_CONFIG_BIAS_DISABLE; + case PX30: case RV1108: case RK3188: case RK3288: @@ -1841,6 +1994,7 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank, data |= BIT(bit); ret = regmap_write(regmap, reg, data); break; + case PX30: case RV1108: case RK3188: case RK3288: @@ -2103,6 +2257,7 @@ static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl, pull == PIN_CONFIG_BIAS_DISABLE); case RK3066B: return pull ? false : true; + case PX30: case RV1108: case RK3188: case RK3288: @@ -3237,6 +3392,43 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev) return 0; } +static struct rockchip_pin_bank px30_pin_banks[] = { + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU, + IOMUX_SOURCE_PMU, + IOMUX_SOURCE_PMU, + IOMUX_SOURCE_PMU + ), + PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT + ), + PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT + ), + PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT, + IOMUX_WIDTH_4BIT + ), +}; + +static struct rockchip_pin_ctrl px30_pin_ctrl = { + .pin_banks = px30_pin_banks, + .nr_banks = ARRAY_SIZE(px30_pin_banks), + .label = "PX30-GPIO", + .type = PX30, + .grf_mux_offset = 0x0, + .pmu_mux_offset = 0x0, + .iomux_routes = px30_mux_route_data, + .niomux_routes = ARRAY_SIZE(px30_mux_route_data), + .pull_calc_reg = px30_calc_pull_reg_and_bit, + .drv_calc_reg = px30_calc_drv_reg_and_bit, + .schmitt_calc_reg = px30_calc_schmitt_reg_and_bit, +}; + static struct rockchip_pin_bank rv1108_pin_banks[] = { PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU, IOMUX_SOURCE_PMU, @@ -3545,6 +3737,8 @@ static struct rockchip_pin_ctrl rk3399_pin_ctrl = { }; static const struct of_device_id rockchip_pinctrl_dt_match[] = { + { .compatible = "rockchip,px30-pinctrl", + .data = &px30_pin_ctrl }, { .compatible = "rockchip,rv1108-pinctrl", .data = &rv1108_pin_ctrl }, { .compatible = "rockchip,rk2928-pinctrl",