pinctrl: add exynos4210 specific extensions for samsung pinctrl driver
Add information about the Exynos4210 pin banks and driver data which is
used by the Samsung pinctrl driver. In addition to this, the support for
external gpio and wakeup interrupt support is included and hooked up with
the Samsung pinctrl driver.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/drivers/pinctrl/pinctrl-exynos.h b/drivers/pinctrl/pinctrl-exynos.h
new file mode 100644
index 0000000..5f27ba9
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-exynos.h
@@ -0,0 +1,217 @@
+/*
+ * Exynos specific definitions for Samsung pinctrl and gpiolib driver.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ * http://www.linaro.org
+ *
+ * This file contains the Exynos specific definitions for the Samsung
+ * pinctrl/gpiolib interface drivers.
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#define EXYNOS_GPIO_START(__gpio) ((__gpio##_START) + (__gpio##_NR))
+
+#define EXYNOS4210_GPIO_A0_NR (8)
+#define EXYNOS4210_GPIO_A1_NR (6)
+#define EXYNOS4210_GPIO_B_NR (8)
+#define EXYNOS4210_GPIO_C0_NR (5)
+#define EXYNOS4210_GPIO_C1_NR (5)
+#define EXYNOS4210_GPIO_D0_NR (4)
+#define EXYNOS4210_GPIO_D1_NR (4)
+#define EXYNOS4210_GPIO_E0_NR (5)
+#define EXYNOS4210_GPIO_E1_NR (8)
+#define EXYNOS4210_GPIO_E2_NR (6)
+#define EXYNOS4210_GPIO_E3_NR (8)
+#define EXYNOS4210_GPIO_E4_NR (8)
+#define EXYNOS4210_GPIO_F0_NR (8)
+#define EXYNOS4210_GPIO_F1_NR (8)
+#define EXYNOS4210_GPIO_F2_NR (8)
+#define EXYNOS4210_GPIO_F3_NR (6)
+#define EXYNOS4210_GPIO_J0_NR (8)
+#define EXYNOS4210_GPIO_J1_NR (5)
+#define EXYNOS4210_GPIO_K0_NR (7)
+#define EXYNOS4210_GPIO_K1_NR (7)
+#define EXYNOS4210_GPIO_K2_NR (7)
+#define EXYNOS4210_GPIO_K3_NR (7)
+#define EXYNOS4210_GPIO_L0_NR (8)
+#define EXYNOS4210_GPIO_L1_NR (3)
+#define EXYNOS4210_GPIO_L2_NR (8)
+#define EXYNOS4210_GPIO_Y0_NR (6)
+#define EXYNOS4210_GPIO_Y1_NR (4)
+#define EXYNOS4210_GPIO_Y2_NR (6)
+#define EXYNOS4210_GPIO_Y3_NR (8)
+#define EXYNOS4210_GPIO_Y4_NR (8)
+#define EXYNOS4210_GPIO_Y5_NR (8)
+#define EXYNOS4210_GPIO_Y6_NR (8)
+#define EXYNOS4210_GPIO_X0_NR (8)
+#define EXYNOS4210_GPIO_X1_NR (8)
+#define EXYNOS4210_GPIO_X2_NR (8)
+#define EXYNOS4210_GPIO_X3_NR (8)
+#define EXYNOS4210_GPIO_Z_NR (7)
+
+enum exynos4210_gpio_xa_start {
+ EXYNOS4210_GPIO_A0_START = 0,
+ EXYNOS4210_GPIO_A1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_A0),
+ EXYNOS4210_GPIO_B_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_A1),
+ EXYNOS4210_GPIO_C0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_B),
+ EXYNOS4210_GPIO_C1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_C0),
+ EXYNOS4210_GPIO_D0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_C1),
+ EXYNOS4210_GPIO_D1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_D0),
+ EXYNOS4210_GPIO_E0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_D1),
+ EXYNOS4210_GPIO_E1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E0),
+ EXYNOS4210_GPIO_E2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E1),
+ EXYNOS4210_GPIO_E3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E2),
+ EXYNOS4210_GPIO_E4_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E3),
+ EXYNOS4210_GPIO_F0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E4),
+ EXYNOS4210_GPIO_F1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_F0),
+ EXYNOS4210_GPIO_F2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_F1),
+ EXYNOS4210_GPIO_F3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_F2),
+};
+
+enum exynos4210_gpio_xb_start {
+ EXYNOS4210_GPIO_J0_START = 0,
+ EXYNOS4210_GPIO_J1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_J0),
+ EXYNOS4210_GPIO_K0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_J1),
+ EXYNOS4210_GPIO_K1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_K0),
+ EXYNOS4210_GPIO_K2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_K1),
+ EXYNOS4210_GPIO_K3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_K2),
+ EXYNOS4210_GPIO_L0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_K3),
+ EXYNOS4210_GPIO_L1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_L0),
+ EXYNOS4210_GPIO_L2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_L1),
+ EXYNOS4210_GPIO_Y0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_L2),
+ EXYNOS4210_GPIO_Y1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y0),
+ EXYNOS4210_GPIO_Y2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y1),
+ EXYNOS4210_GPIO_Y3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y2),
+ EXYNOS4210_GPIO_Y4_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y3),
+ EXYNOS4210_GPIO_Y5_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y4),
+ EXYNOS4210_GPIO_Y6_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y5),
+ EXYNOS4210_GPIO_X0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y6),
+ EXYNOS4210_GPIO_X1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_X0),
+ EXYNOS4210_GPIO_X2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_X1),
+ EXYNOS4210_GPIO_X3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_X2),
+};
+
+enum exynos4210_gpio_xc_start {
+ EXYNOS4210_GPIO_Z_START = 0,
+};
+
+#define EXYNOS4210_GPIO_A0_IRQ EXYNOS4210_GPIO_A0_START
+#define EXYNOS4210_GPIO_A1_IRQ EXYNOS4210_GPIO_A1_START
+#define EXYNOS4210_GPIO_B_IRQ EXYNOS4210_GPIO_B_START
+#define EXYNOS4210_GPIO_C0_IRQ EXYNOS4210_GPIO_C0_START
+#define EXYNOS4210_GPIO_C1_IRQ EXYNOS4210_GPIO_C1_START
+#define EXYNOS4210_GPIO_D0_IRQ EXYNOS4210_GPIO_D0_START
+#define EXYNOS4210_GPIO_D1_IRQ EXYNOS4210_GPIO_D1_START
+#define EXYNOS4210_GPIO_E0_IRQ EXYNOS4210_GPIO_E0_START
+#define EXYNOS4210_GPIO_E1_IRQ EXYNOS4210_GPIO_E1_START
+#define EXYNOS4210_GPIO_E2_IRQ EXYNOS4210_GPIO_E2_START
+#define EXYNOS4210_GPIO_E3_IRQ EXYNOS4210_GPIO_E3_START
+#define EXYNOS4210_GPIO_E4_IRQ EXYNOS4210_GPIO_E4_START
+#define EXYNOS4210_GPIO_F0_IRQ EXYNOS4210_GPIO_F0_START
+#define EXYNOS4210_GPIO_F1_IRQ EXYNOS4210_GPIO_F1_START
+#define EXYNOS4210_GPIO_F2_IRQ EXYNOS4210_GPIO_F2_START
+#define EXYNOS4210_GPIO_F3_IRQ EXYNOS4210_GPIO_F3_START
+#define EXYNOS4210_GPIO_J0_IRQ EXYNOS4210_GPIO_J0_START
+#define EXYNOS4210_GPIO_J1_IRQ EXYNOS4210_GPIO_J1_START
+#define EXYNOS4210_GPIO_K0_IRQ EXYNOS4210_GPIO_K0_START
+#define EXYNOS4210_GPIO_K1_IRQ EXYNOS4210_GPIO_K1_START
+#define EXYNOS4210_GPIO_K2_IRQ EXYNOS4210_GPIO_K2_START
+#define EXYNOS4210_GPIO_K3_IRQ EXYNOS4210_GPIO_K3_START
+#define EXYNOS4210_GPIO_L0_IRQ EXYNOS4210_GPIO_L0_START
+#define EXYNOS4210_GPIO_L1_IRQ EXYNOS4210_GPIO_L1_START
+#define EXYNOS4210_GPIO_L2_IRQ EXYNOS4210_GPIO_L2_START
+#define EXYNOS4210_GPIO_Z_IRQ EXYNOS4210_GPIO_Z_START
+
+#define EXYNOS4210_GPIOA_NR_PINS EXYNOS_GPIO_START(EXYNOS4210_GPIO_F3)
+#define EXYNOS4210_GPIOA_NR_GINT EXYNOS_GPIO_START(EXYNOS4210_GPIO_F3)
+#define EXYNOS4210_GPIOB_NR_PINS EXYNOS_GPIO_START(EXYNOS4210_GPIO_X3)
+#define EXYNOS4210_GPIOB_NR_GINT EXYNOS_GPIO_START(EXYNOS4210_GPIO_L2)
+#define EXYNOS4210_GPIOC_NR_PINS EXYNOS_GPIO_START(EXYNOS4210_GPIO_Z)
+
+/* External GPIO and wakeup interrupt related definitions */
+#define EXYNOS_GPIO_ECON_OFFSET 0x700
+#define EXYNOS_GPIO_EMASK_OFFSET 0x900
+#define EXYNOS_GPIO_EPEND_OFFSET 0xA00
+#define EXYNOS_WKUP_ECON_OFFSET 0xE00
+#define EXYNOS_WKUP_EMASK_OFFSET 0xF00
+#define EXYNOS_WKUP_EPEND_OFFSET 0xF40
+#define EXYNOS_SVC_OFFSET 0xB08
+
+/* helpers to access interrupt service register */
+#define EXYNOS_SVC_GROUP_SHIFT 3
+#define EXYNOS_SVC_GROUP_MASK 0x1f
+#define EXYNOS_SVC_NUM_MASK 7
+#define EXYNOS_SVC_GROUP(x) ((x >> EXYNOS_SVC_GROUP_SHIFT) & \
+ EXYNOS_SVC_GROUP_MASK)
+
+/* Exynos specific external interrupt trigger types */
+#define EXYNOS_EINT_LEVEL_LOW 0
+#define EXYNOS_EINT_LEVEL_HIGH 1
+#define EXYNOS_EINT_EDGE_FALLING 2
+#define EXYNOS_EINT_EDGE_RISING 3
+#define EXYNOS_EINT_EDGE_BOTH 4
+#define EXYNOS_EINT_CON_MASK 0xF
+#define EXYNOS_EINT_CON_LEN 4
+
+#define EXYNOS_EINT_MAX_PER_BANK 8
+#define EXYNOS_EINT_NR_WKUP_EINT
+
+#define EXYNOS_PIN_BANK_EINTN(reg, __gpio, id) \
+ { \
+ .pctl_offset = reg, \
+ .pin_base = (__gpio##_START), \
+ .nr_pins = (__gpio##_NR), \
+ .func_width = 4, \
+ .pud_width = 2, \
+ .drv_width = 2, \
+ .conpdn_width = 2, \
+ .pudpdn_width = 2, \
+ .eint_type = EINT_TYPE_NONE, \
+ .name = id \
+ }
+
+#define EXYNOS_PIN_BANK_EINTG(reg, __gpio, id) \
+ { \
+ .pctl_offset = reg, \
+ .pin_base = (__gpio##_START), \
+ .nr_pins = (__gpio##_NR), \
+ .func_width = 4, \
+ .pud_width = 2, \
+ .drv_width = 2, \
+ .conpdn_width = 2, \
+ .pudpdn_width = 2, \
+ .eint_type = EINT_TYPE_GPIO, \
+ .irq_base = (__gpio##_IRQ), \
+ .name = id \
+ }
+
+/**
+ * struct exynos_geint_data: gpio eint specific data for irq_chip callbacks.
+ * @bank: pin bank from which this gpio interrupt originates.
+ * @pin: pin number within the bank.
+ * @eint_offset: offset to be added to the con/pend/mask register bank base.
+ */
+struct exynos_geint_data {
+ struct samsung_pin_bank *bank;
+ u32 pin;
+ u32 eint_offset;
+};
+
+/**
+ * struct exynos_weint_data: irq specific data for all the wakeup interrupts
+ * generated by the external wakeup interrupt controller.
+ * @domain: irq domain representing the external wakeup interrupts
+ * @irq: interrupt number within the domain.
+ */
+struct exynos_weint_data {
+ struct irq_domain *domain;
+ u32 irq;
+};