All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Wu <david.wu@rock-chips.com>
To: heiko@sntech.de, linus.walleij@linaro.org
Cc: huangtao@rock-chips.com, dianders@chromium.org,
	linux-rockchip@lists.infradead.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org, David Wu <david.wu@rock-chips.com>
Subject: [PATCH 1/2] pinctrl: rockchip: Use common interface for recalced iomux
Date: Fri, 21 Jul 2017 14:27:14 +0800	[thread overview]
Message-ID: <1500618435-15092-2-git-send-email-david.wu@rock-chips.com> (raw)
In-Reply-To: <1500618435-15092-1-git-send-email-david.wu@rock-chips.com>

The other Socs also need the feature of recalced iomux, so
make it as a common interface like iomux route feature.

Signed-off-by: David Wu <david.wu@rock-chips.com>
---
 drivers/pinctrl/pinctrl-rockchip.c | 89 +++++++++++++++++++++-----------------
 1 file changed, 50 insertions(+), 39 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index e831647..fd4e491 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -76,7 +76,6 @@ enum rockchip_pinctrl_type {
 #define IOMUX_SOURCE_PMU	BIT(2)
 #define IOMUX_UNROUTED		BIT(3)
 #define IOMUX_WIDTH_3BIT	BIT(4)
-#define IOMUX_RECALCED		BIT(5)
 
 /**
  * @type: iomux variant using IOMUX_* constants
@@ -166,6 +165,7 @@ struct rockchip_pin_bank {
 	struct pinctrl_gpio_range	grange;
 	raw_spinlock_t			slock;
 	u32				toggle_edge_mode;
+	u32				recalced_mask;
 	u32				route_mask;
 };
 
@@ -291,6 +291,22 @@ struct rockchip_pin_bank {
 
 /**
  * struct rockchip_mux_recalced_data: represent a pin iomux data.
+ * @num: bank number.
+ * @pin: pin number.
+ * @bit: index at register.
+ * @reg: register offset.
+ * @mask: mask bit
+ */
+struct rockchip_mux_recalced_data {
+	u8 num;
+	u8 pin;
+	u8 reg;
+	u8 bit;
+	u8 mask;
+};
+
+/**
+ * struct rockchip_mux_recalced_data: represent a pin iomux data.
  * @bank_num: bank number.
  * @pin: index at register or used to calc index.
  * @func: the min pin.
@@ -317,6 +333,8 @@ struct rockchip_pin_ctrl {
 	int				pmu_mux_offset;
 	int				grf_drv_offset;
 	int				pmu_drv_offset;
+	struct rockchip_mux_recalced_data *iomux_recalced;
+	u32				niomux_recalced;
 	struct rockchip_mux_route_data *iomux_routes;
 	u32				niomux_routes;
 
@@ -326,8 +344,6 @@ struct rockchip_pin_ctrl {
 	void	(*drv_calc_reg)(struct rockchip_pin_bank *bank,
 				    int pin_num, struct regmap **regmap,
 				    int *reg, u8 *bit);
-	void	(*iomux_recalc)(u8 bank_num, int pin, int *reg,
-				u8 *bit, int *mask);
 	int	(*schmitt_calc_reg)(struct rockchip_pin_bank *bank,
 				    int pin_num, struct regmap **regmap,
 				    int *reg, u8 *bit);
@@ -382,22 +398,6 @@ struct rockchip_pinctrl {
 	unsigned int			nfunctions;
 };
 
-/**
- * struct rockchip_mux_recalced_data: represent a pin iomux data.
- * @num: bank number.
- * @pin: pin number.
- * @bit: index at register.
- * @reg: register offset.
- * @mask: mask bit
- */
-struct rockchip_mux_recalced_data {
-	u8 num;
-	u8 pin;
-	u8 reg;
-	u8 bit;
-	u8 mask;
-};
-
 static struct regmap_config rockchip_regmap_config = {
 	.reg_bits = 32,
 	.val_bits = 32,
@@ -557,7 +557,7 @@ static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
  * Hardware access
  */
 
-static const struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = {
+static struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = {
 	{
 		.num = 2,
 		.pin = 12,
@@ -579,20 +579,22 @@ static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
 	},
 };
 
-static void rk3328_recalc_mux(u8 bank_num, int pin, int *reg,
-			      u8 *bit, int *mask)
+static void rockchip_get_recalced_mux(struct rockchip_pin_bank *bank, int pin,
+				      int *reg, u8 *bit, int *mask)
 {
-	const struct rockchip_mux_recalced_data *data = NULL;
+	struct rockchip_pinctrl *info = bank->drvdata;
+	struct rockchip_pin_ctrl *ctrl = info->ctrl;
+	struct rockchip_mux_recalced_data *data;
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(rk3328_mux_recalced_data); i++)
-		if (rk3328_mux_recalced_data[i].num == bank_num &&
-		    rk3328_mux_recalced_data[i].pin == pin) {
-			data = &rk3328_mux_recalced_data[i];
+	for (i = 0; i < ctrl->niomux_recalced; i++) {
+		data = &ctrl->iomux_recalced[i];
+		if (data->num == bank->bank_num &&
+		    data->pin == pin)
 			break;
-		}
+	}
 
-	if (!data)
+	if (i >= ctrl->niomux_recalced)
 		return;
 
 	*reg = data->reg;
@@ -877,7 +879,6 @@ static bool rockchip_get_mux_route(struct rockchip_pin_bank *bank, int pin,
 static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
 {
 	struct rockchip_pinctrl *info = bank->drvdata;
-	struct rockchip_pin_ctrl *ctrl = info->ctrl;
 	int iomux_num = (pin / 8);
 	struct regmap *regmap;
 	unsigned int val;
@@ -916,8 +917,8 @@ static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
 		mask = 0x3;
 	}
 
-	if (ctrl->iomux_recalc && (mux_type & IOMUX_RECALCED))
-		ctrl->iomux_recalc(bank->bank_num, pin, &reg, &bit, &mask);
+	if (bank->recalced_mask & BIT(pin))
+		rockchip_get_recalced_mux(bank, pin, &reg, &bit, &mask);
 
 	ret = regmap_read(regmap, reg, &val);
 	if (ret)
@@ -967,7 +968,6 @@ static int rockchip_verify_mux(struct rockchip_pin_bank *bank,
 static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
 {
 	struct rockchip_pinctrl *info = bank->drvdata;
-	struct rockchip_pin_ctrl *ctrl = info->ctrl;
 	int iomux_num = (pin / 8);
 	struct regmap *regmap;
 	int reg, ret, mask, mux_type;
@@ -1005,8 +1005,8 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
 		mask = 0x3;
 	}
 
-	if (ctrl->iomux_recalc && (mux_type & IOMUX_RECALCED))
-		ctrl->iomux_recalc(bank->bank_num, pin, &reg, &bit, &mask);
+	if (bank->recalced_mask & BIT(pin))
+		rockchip_get_recalced_mux(bank, pin, &reg, &bit, &mask);
 
 	if (bank->route_mask & BIT(pin)) {
 		if (rockchip_get_mux_route(bank, pin, mux, &route_reg,
@@ -2853,6 +2853,16 @@ static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
 			bank_pins += 8;
 		}
 
+		/* calculate the per-bank recalced_mask */
+		for (j = 0; j < ctrl->niomux_recalced; j++) {
+			int pin = 0;
+
+			if (ctrl->iomux_recalced[j].num == bank->bank_num) {
+				pin = ctrl->iomux_recalced[j].pin;
+				bank->recalced_mask |= BIT(pin);
+			}
+		}
+
 		/* calculate the per-bank route_mask */
 		for (j = 0; j < ctrl->niomux_routes; j++) {
 			int pin = 0;
@@ -3165,12 +3175,12 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
 	PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
 	PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
-			     IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
-			     IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
+			     IOMUX_WIDTH_3BIT,
+			     IOMUX_WIDTH_3BIT,
 			     0),
 	PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
 			     IOMUX_WIDTH_3BIT,
-			     IOMUX_WIDTH_3BIT | IOMUX_RECALCED,
+			     IOMUX_WIDTH_3BIT,
 			     0,
 			     0),
 };
@@ -3181,11 +3191,12 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
 		.label			= "RK3328-GPIO",
 		.type			= RK3288,
 		.grf_mux_offset		= 0x0,
+		.iomux_recalced		= rk3328_mux_recalced_data,
+		.niomux_recalced	= ARRAY_SIZE(rk3328_mux_recalced_data),
 		.iomux_routes		= rk3328_mux_route_data,
 		.niomux_routes		= ARRAY_SIZE(rk3328_mux_route_data),
 		.pull_calc_reg		= rk3228_calc_pull_reg_and_bit,
 		.drv_calc_reg		= rk3228_calc_drv_reg_and_bit,
-		.iomux_recalc		= rk3328_recalc_mux,
 		.schmitt_calc_reg	= rk3328_calc_schmitt_reg_and_bit,
 };
 
-- 
1.9.1

  reply	other threads:[~2017-07-21  6:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-21  6:27 [PATCH 0/2] Add RK3128 pinctrl support David Wu
2017-07-21  6:27 ` David Wu [this message]
2017-07-21  9:35   ` [PATCH 1/2] pinctrl: rockchip: Use common interface for recalced iomux Heiko Stuebner
2017-08-03  7:30   ` Linus Walleij
2017-07-21  6:27 ` [PATCH 2/2] pinctrl: rockchip: Add rk3128 pinctrl support David Wu
2017-07-21  9:38   ` Heiko Stuebner
2017-08-03  7:32   ` Linus Walleij

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1500618435-15092-2-git-send-email-david.wu@rock-chips.com \
    --to=david.wu@rock-chips.com \
    --cc=dianders@chromium.org \
    --cc=heiko@sntech.de \
    --cc=huangtao@rock-chips.com \
    --cc=linus.walleij@linaro.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rockchip@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.