12 #include <asm-generic/gpio.h>
32 	u8 reg_shift = oft * hcg->bit_per_gpio + hcg->shift;  in hsdk_creg_gpio_set_value()
33 	u32 reg = readl(hcg->regs);  in hsdk_creg_gpio_set_value()
35 	reg &= ~(GENMASK(hcg->bit_per_gpio - 1, 0) << reg_shift);  in hsdk_creg_gpio_set_value()
36 	reg |=  ((val ? hcg->deactivate : hcg->activate) << reg_shift);  in hsdk_creg_gpio_set_value()
38 	writel(reg, hcg->regs);  in hsdk_creg_gpio_set_value()
55 	pr_err("%s can't be used as input!\n", uc_priv->bank_name);  in hsdk_creg_gpio_direction_input()
57 	return -ENOTSUPP;  in hsdk_creg_gpio_direction_input()
63 	u32 val = readl(hcg->regs);  in hsdk_creg_gpio_get_value()
65 	val >>= oft * hcg->bit_per_gpio + hcg->shift;  in hsdk_creg_gpio_get_value()
66 	val &= GENMASK(hcg->bit_per_gpio - 1, 0);  in hsdk_creg_gpio_get_value()
67 	return (val == hcg->deactivate) ? 1 : 0;  in hsdk_creg_gpio_get_value()
82 	const u8 *defaults;  in hsdk_creg_gpio_probe()  local
84 	hcg->regs = (u32 *)devfdt_get_addr_ptr(dev);  in hsdk_creg_gpio_probe()
85 	gpio_count = dev_read_u32_default(dev, "gpio-count", 1);  in hsdk_creg_gpio_probe()
86 	shift = dev_read_u32_default(dev, "gpio-first-shift", 0);  in hsdk_creg_gpio_probe()
87 	bit_per_gpio = dev_read_u32_default(dev, "gpio-bit-per-line", 1);  in hsdk_creg_gpio_probe()
88 	activate = dev_read_u32_default(dev, "gpio-activate-val", 1);  in hsdk_creg_gpio_probe()
89 	deactivate = dev_read_u32_default(dev, "gpio-deactivate-val", 0);  in hsdk_creg_gpio_probe()
90 	defaults = dev_read_u8_array_ptr(dev, "gpio-default-val", gpio_count);  in hsdk_creg_gpio_probe()
92 	uc_priv->bank_name = dev_read_string(dev, "gpio-bank-name");  in hsdk_creg_gpio_probe()
93 	if (!uc_priv->bank_name)  in hsdk_creg_gpio_probe()
94 		uc_priv->bank_name = dev_read_name(dev);  in hsdk_creg_gpio_probe()
97 		pr_err("%s: 'gpio-bit-per-line' can't be 0\n",  in hsdk_creg_gpio_probe()
98 		       uc_priv->bank_name);  in hsdk_creg_gpio_probe()
100 		return -EINVAL;  in hsdk_creg_gpio_probe()
104 		pr_err("%s: 'gpio-count' can't be 0\n",  in hsdk_creg_gpio_probe()
105 		       uc_priv->bank_name);  in hsdk_creg_gpio_probe()
107 		return -EINVAL;  in hsdk_creg_gpio_probe()
112 		       uc_priv->bank_name, gpio_count * bit_per_gpio + shift);  in hsdk_creg_gpio_probe()
114 		return -EINVAL;  in hsdk_creg_gpio_probe()
118 		pr_err("%s: 'gpio-activate-val' can't be more than %lu\n",  in hsdk_creg_gpio_probe()
119 		       uc_priv->bank_name, GENMASK(bit_per_gpio - 1, 0));  in hsdk_creg_gpio_probe()
121 		return -EINVAL;  in hsdk_creg_gpio_probe()
125 		pr_err("%s: 'gpio-deactivate-val' can't be more than %lu\n",  in hsdk_creg_gpio_probe()
126 		       uc_priv->bank_name, GENMASK(bit_per_gpio - 1, 0));  in hsdk_creg_gpio_probe()
128 		return -EINVAL;  in hsdk_creg_gpio_probe()
132 		pr_err("%s: 'gpio-deactivate-val' and 'gpio-activate-val' can't be equal\n",  in hsdk_creg_gpio_probe()
133 		       uc_priv->bank_name);  in hsdk_creg_gpio_probe()
135 		return -EINVAL;  in hsdk_creg_gpio_probe()
138 	hcg->shift = (u8)shift;  in hsdk_creg_gpio_probe()
139 	hcg->bit_per_gpio = (u8)bit_per_gpio;  in hsdk_creg_gpio_probe()
140 	hcg->activate = (u8)activate;  in hsdk_creg_gpio_probe()
141 	hcg->deactivate = (u8)deactivate;  in hsdk_creg_gpio_probe()
142 	uc_priv->gpio_count = gpio_count;  in hsdk_creg_gpio_probe()
144 	/* Setup default GPIO value if we have "gpio-default-val" array */  in hsdk_creg_gpio_probe()
145 	if (defaults)  in hsdk_creg_gpio_probe()
147 			hsdk_creg_gpio_set_value(dev, i, defaults[i]);  in hsdk_creg_gpio_probe()
149 	pr_debug("%s GPIO [0x%p] controller with %d gpios probed\n",  in hsdk_creg_gpio_probe()
150 		 uc_priv->bank_name, hcg->regs, uc_priv->gpio_count);  in hsdk_creg_gpio_probe()
156 	{ .compatible = "snps,creg-gpio" },