Commit f8b05fe4 authored by Baolin Wang's avatar Baolin Wang Committed by Linus Walleij
Browse files

pinctrl: sprd: Add PIN_CONFIG_BIAS_DISABLE configuration support 



Add PIN_CONFIG_BIAS_DISABLE configuration support for Spreadtrum pin
controller.

Signed-off-by: default avatarBaolin Wang <baolin.wang@linaro.org>
Link: https://lore.kernel.org/r/66d373ddee61e8be2fcef49aac5e80bd58f14915.1570596606.git.baolin.wang@linaro.org


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent f086d1fe

drivers/pinctrl/sprd/pinctrl-sprd.c

+17 −0
Original line number Diff line number Diff line
@@ -484,6 +484,13 @@ static int sprd_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin_id, 
			       SLEEP_PULL_UP_MASK) << 16;

			arg |= (reg >> PULL_UP_SHIFT) & PULL_UP_MASK;

			break;

		case PIN_CONFIG_BIAS_DISABLE:

			if ((reg & (SLEEP_PULL_DOWN | SLEEP_PULL_UP)) ||

			    (reg & (PULL_DOWN | PULL_UP_4_7K | PULL_UP_20K)))

				return -EINVAL;



			arg = 1;

			break;

		case PIN_CONFIG_SLEEP_HARDWARE_STATE:

			arg = 0;

			break;
@@ -674,6 +681,16 @@ static int sprd_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin_id, 
					shift = PULL_UP_SHIFT;

				}

				break;

			case PIN_CONFIG_BIAS_DISABLE:

				if (is_sleep_config == true) {

					val = shift = 0;

					mask = SLEEP_PULL_DOWN | SLEEP_PULL_UP;

				} else {

					val = shift = 0;

					mask = PULL_DOWN | PULL_UP_20K |

						PULL_UP_4_7K;

				}

				break;

			case PIN_CONFIG_SLEEP_HARDWARE_STATE:

				continue;

			default:

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