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0b1284eb52
It is a pain to have to specify the value 10 in each call. Add a new dectoul() function and update the code to use it. Signed-off-by: Simon Glass <sjg@chromium.org>
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Pinctrl driver for Nexell SoCs
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* (C) Copyright 2016 Nexell
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* Bongyu, KOO <freestyle@nexell.co.kr>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include "pinctrl-nexell.h"
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#include "pinctrl-s5pxx18.h"
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DECLARE_GLOBAL_DATA_PTR;
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/* given a pin-name, return the address of pin config registers */
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unsigned long pin_to_bank_base(struct udevice *dev, const char *pin_name,
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u32 *pin)
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{
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struct nexell_pinctrl_priv *priv = dev_get_priv(dev);
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const struct nexell_pin_ctrl *pin_ctrl = priv->pin_ctrl;
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const struct nexell_pin_bank_data *bank_data = pin_ctrl->pin_banks;
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u32 nr_banks = pin_ctrl->nr_banks, idx = 0;
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char bank[10];
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/*
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* The format of the pin name is <bank name>-<pin_number>.
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* Example: gpioa-4 (gpioa is the bank name and 4 is the pin number)
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*/
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while (pin_name[idx] != '-') {
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bank[idx] = pin_name[idx];
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idx++;
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}
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bank[idx] = '\0';
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*pin = (u32)dectoul(&pin_name[++idx], NULL);
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/* lookup the pin bank data using the pin bank name */
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for (idx = 0; idx < nr_banks; idx++)
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if (!strcmp(bank, bank_data[idx].name))
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break;
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return priv->base + bank_data[idx].offset;
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}
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int nexell_pinctrl_probe(struct udevice *dev)
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{
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struct nexell_pinctrl_priv *priv;
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fdt_addr_t base;
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priv = dev_get_priv(dev);
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if (!priv)
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return -EINVAL;
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base = devfdt_get_addr(dev);
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if (base == FDT_ADDR_T_NONE)
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return -EINVAL;
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priv->base = base;
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priv->pin_ctrl = (struct nexell_pin_ctrl *)dev_get_driver_data(dev);
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s5pxx18_pinctrl_init(dev);
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return 0;
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}
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