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pinctrl: nomadik: add USB functions for STn8815 

The MUSB block in the Nomadik has two pin settings: high speed or
full speed. These correspond to two unique pin group settings: all
pins set to function B for high speed and all set to function C
for full speed. Full speed uses more pins than high speed.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2018-02-12 22:54:06 +01:00
parent a7aa75a2a7
commit 5da2bd5ad5
1 changed files with 15 additions and 1 deletions
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16
drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c
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@ -291,7 +291,17 @@ static const unsigned i2cusb_b_1_pins[] = { STN8815_PIN_C21, STN8815_PIN_C20 };
static const unsigned clcd_16_23_b_1_pins[] = { STN8815_PIN_AB6,
STN8815_PIN_AA6, STN8815_PIN_Y6, STN8815_PIN_Y5, STN8815_PIN_AA5,
STN8815_PIN_AB5, STN8815_PIN_AB4, STN8815_PIN_Y4 };
/* Full-speed and high-speed USB pins */
static const unsigned usbfs_b_1_pins[] = { STN8815_PIN_E21, STN8815_PIN_E20,
STN8815_PIN_C22, STN8815_PIN_D21,
STN8815_PIN_D20, STN8815_PIN_C21,
STN8815_PIN_C20 };
static const unsigned usbhs_c_1_pins[] = { STN8815_PIN_E21, STN8815_PIN_E20,
STN8815_PIN_C20, STN8815_PIN_C19,
STN8815_PIN_C22, STN8815_PIN_D21,
STN8815_PIN_D20, STN8815_PIN_C21,
STN8815_PIN_C16, STN8815_PIN_A15,
STN8815_PIN_D17, STN8815_PIN_C17 };
#define STN8815_PIN_GROUP(a, b) { .name = #a, .pins = a##_pins, \
.npins = ARRAY_SIZE(a##_pins), .altsetting = b }
@ -308,6 +318,8 @@ static const struct nmk_pingroup nmk_stn8815_groups[] = {
STN8815_PIN_GROUP(u1_b_1, NMK_GPIO_ALT_B),
STN8815_PIN_GROUP(i2cusb_b_1, NMK_GPIO_ALT_B),
STN8815_PIN_GROUP(clcd_16_23_b_1, NMK_GPIO_ALT_B),
STN8815_PIN_GROUP(usbfs_b_1, NMK_GPIO_ALT_B),
STN8815_PIN_GROUP(usbhs_c_1, NMK_GPIO_ALT_C),
};
/* We use this macro to define the groups applicable to a function */
@ -321,6 +333,7 @@ STN8815_FUNC_GROUPS(i2c1, "i2c1_a_1");
STN8815_FUNC_GROUPS(i2c0, "i2c0_a_1");
STN8815_FUNC_GROUPS(i2cusb, "i2cusb_b_1");
STN8815_FUNC_GROUPS(clcd, "clcd_16_23_b_1");
STN8815_FUNC_GROUPS(usb, "usbfs_b_1", "usbhs_c_1");
#define FUNCTION(fname) \
{ \
@ -337,6 +350,7 @@ static const struct nmk_function nmk_stn8815_functions[] = {
FUNCTION(i2c0),
FUNCTION(i2cusb),
FUNCTION(clcd),
FUNCTION(usb),
};
static const struct nmk_pinctrl_soc_data nmk_stn8815_soc = {