Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4b5cc9dc authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
Browse files

Merge "soc: pinctrl-lpi: Enable gpio for swr tx data3 for lito v2"

parents 46c1ee44 45e51d16

soc/pinctrl-lpi.c

+25 −0
Original line number Diff line number Diff line
@@ -86,6 +86,7 @@ enum lpi_gpio_func_index { 
 * @base: stores one of gpio_base or slew_base at a given time.

 * @gpio_base: Address base of LPI GPIO PAD.

 * @slew_base: Address base of LPI SLEW PAD.

 * @lpi_slew_reg: Address for lpi slew reg.

 * @pullup: Constant current which flow through GPIO output buffer.

 * @strength: No, Low, Medium, High

 * @function: See lpi_gpio_functions[]
@@ -99,6 +100,7 @@ struct lpi_gpio_pad { 
	char __iomem    *base;

	char __iomem    *gpio_base;

	char __iomem    *slew_base;

	char __iomem    *lpi_slew_reg;

	unsigned int    pullup;

	unsigned int    strength;

	unsigned int    function;
@@ -126,6 +128,7 @@ static const char *const lpi_gpio_groups[] = { 
#define LPI_TLMM_MAX_PINS 100

static u32 lpi_offset[LPI_TLMM_MAX_PINS];

static u32 lpi_slew_offset[LPI_TLMM_MAX_PINS];

static u32 lpi_slew_base[LPI_TLMM_MAX_PINS];



static const char *const lpi_gpio_functions[] = {

	[LPI_GPIO_FUNC_INDEX_GPIO]	= LPI_GPIO_FUNC_GPIO,
@@ -366,6 +369,12 @@ static int lpi_config_set(struct pinctrl_dev *pctldev, unsigned int pin, 
			pad->base = pad->slew_base;

			pad->offset = 0;

			mutex_lock(&state->slew_access_lock);

			if (pad->lpi_slew_reg != NULL) {

				pad->base = pad->lpi_slew_reg;

				lpi_gpio_write(pad, LPI_SLEW_REG_VAL_CTL, arg);

				pad->base = pad->slew_base;

				goto slew_exit;

			}

			val = lpi_gpio_read(pad, LPI_SLEW_REG_VAL_CTL);

			pad->offset = pad->slew_offset;

			for (i = 0; i < LPI_SLEW_BITS_SIZE; i++) {
@@ -378,6 +387,7 @@ static int lpi_config_set(struct pinctrl_dev *pctldev, unsigned int pin, 
			}

			pad->offset = 0;

			lpi_gpio_write(pad, LPI_SLEW_REG_VAL_CTL, val);

slew_exit:

			mutex_unlock(&state->slew_access_lock);

			break;

		default:
@@ -646,6 +656,16 @@ static int lpi_pinctrl_probe(struct platform_device *pdev) 
			__func__, ret);

	}



	ret = of_property_read_u32_array(dev->of_node,

					 "qcom,lpi-slew-base-tbl",

					 lpi_slew_base, npins);

	if (ret < 0) {

		for (i = 0; i < npins; i++)

			lpi_slew_base[i] = LPI_SLEW_OFFSET_INVALID;

		dev_dbg(dev, "%s: error in reading lpi slew table: %d\n",

			__func__, ret);

	}



	state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);

	if (!state)

		return -ENOMEM;
@@ -712,6 +732,11 @@ static int lpi_pinctrl_probe(struct platform_device *pdev) 
		pad->gpio_offset = lpi_offset[i];

		pad->slew_offset = lpi_slew_offset[i];

		pad->offset = pad->gpio_offset;

		pad->lpi_slew_reg = NULL;

		if ((lpi_slew_base[i] != LPI_SLEW_OFFSET_INVALID) &&

		     lpi_slew_base[i])

			pad->lpi_slew_reg = devm_ioremap(dev,

                                                lpi_slew_base[i], 0x4);

	}



	state->chip = lpi_gpio_template;