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Commit d7ec18ce authored by Aditya Bavanari's avatar Aditya Bavanari
Browse files

soc: pinctrl-lpi: Add support to read lpi offset from device tree 



In order to support variable lpi offsets from different chipsets
read the lpi offset values of gpio groups from device tree. Any
target which uses LPI has to define this gpio offset table
in device tree.

Change-Id: I3bd54017e4571deb9a189cfd6903698887a6413a
Signed-off-by: default avatarAditya Bavanari <abavanar@codeaurora.org>
parent b40af467

soc/pinctrl-lpi.c

+9 −34
Original line number Diff line number Diff line
@@ -105,40 +105,8 @@ static const char *const lpi_gpio_groups[] = { 
	"gpio29", "gpio30", "gpio31",

};



static const u32 lpi_offset[] = {

	0x00000000,

	0x00001000,

	0x00002000,

	0x00003000,

	0x00004000,

	0x00005000,

	0x00006000,

	0x00007000,

	0x00008000,

	0x00009000,

	0x0000A000,

	0x0000B000,

	0x0000C000,

	0x0000D000,

	0x0000E000,

	0x0000F000,

	0x00010000,

	0x00011000,

	0x00012000,

	0x00013000,

	0x00014000,

	0x00015000,

	0x00016000,

	0x00017000,

	0x00018000,

	0x00019000,

	0x0001A000,

	0x0001B000,

	0x0001C000,

	0x0001D000,

	0x0001E000,

	0x0001F000,

};

#define LPI_TLMM_MAX_PINS 100

static u32 lpi_offset[LPI_TLMM_MAX_PINS];



static const char *const lpi_gpio_functions[] = {

	[LPI_GPIO_FUNC_INDEX_GPIO]	= LPI_GPIO_FUNC_GPIO,
@@ -531,6 +499,13 @@ static int lpi_pinctrl_probe(struct platform_device *pdev) 


	WARN_ON(npins > ARRAY_SIZE(lpi_gpio_groups));



	ret = of_property_read_u32_array(dev->of_node, "qcom,lpi-offset-tbl",

					 lpi_offset, npins);

	if (ret < 0) {

		dev_err(dev, "error in reading lpi offset table: %d\n", ret);

		return ret;

	}



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

	if (!state)

		return -ENOMEM;