59 	struct ttl_module *mod = dev_get_drvdata(gpio->parent);  in ttl_get_value()  local
64 		shadow = &mod->porta_shadow;  in ttl_get_value()
66 		shadow = &mod->portb_shadow;  in ttl_get_value()
69 		shadow = &mod->portc_shadow;  in ttl_get_value()
73 	spin_lock(&mod->lock);  in ttl_get_value()
75 	spin_unlock(&mod->lock);  in ttl_get_value()
81 	struct ttl_module *mod = dev_get_drvdata(gpio->parent);  in ttl_set_value()  local
86 		port = &mod->regs->porta;  in ttl_set_value()
87 		shadow = &mod->porta_shadow;  in ttl_set_value()
89 		port = &mod->regs->portb;  in ttl_set_value()
90 		shadow = &mod->portb_shadow;  in ttl_set_value()
93 		port = &mod->regs->portc;  in ttl_set_value()
94 		shadow = &mod->portc_shadow;  in ttl_set_value()
98 	spin_lock(&mod->lock);  in ttl_set_value()
105 	spin_unlock(&mod->lock);  in ttl_set_value()
108 static void ttl_write_reg(struct ttl_module *mod, u8 reg, u16 val)  in ttl_write_reg()  argument
110 	iowrite16be(reg, &mod->regs->control);  in ttl_write_reg()
111 	iowrite16be(val, &mod->regs->control);  in ttl_write_reg()
114 static void ttl_setup_device(struct ttl_module *mod)  in ttl_setup_device()  argument
117 	iowrite16be(0x0000, &mod->regs->control);  in ttl_setup_device()
118 	iowrite16be(0x0001, &mod->regs->control);  in ttl_setup_device()
119 	iowrite16be(0x0000, &mod->regs->control);  in ttl_setup_device()
122 	ttl_write_reg(mod, PORTA_IOCTL, 0x00ff);  in ttl_setup_device()
123 	ttl_write_reg(mod, PORTB_IOCTL, 0x00ff);  in ttl_setup_device()
124 	ttl_write_reg(mod, PORTC_IOCTL, 0x000f);  in ttl_setup_device()
127 	ttl_write_reg(mod, PORTA_DIRECTION, 0x0000);  in ttl_setup_device()
128 	ttl_write_reg(mod, PORTB_DIRECTION, 0x0000);  in ttl_setup_device()
129 	ttl_write_reg(mod, PORTC_DIRECTION, 0x0000);  in ttl_setup_device()
132 	iowrite16be(0x0000, &mod->regs->porta);  in ttl_setup_device()
133 	iowrite16be(0x0000, &mod->regs->portb);  in ttl_setup_device()
134 	iowrite16be(0x0000, &mod->regs->portc);  in ttl_setup_device()
137 	ttl_write_reg(mod, MASTER_CONF_CTL, CONF_PAE | CONF_PBE | CONF_PCE);  in ttl_setup_device()
143 	struct ttl_module *mod;  in ttl_probe()  local
153 	mod = devm_kzalloc(&pdev->dev, sizeof(*mod), GFP_KERNEL);  in ttl_probe()
154 	if (!mod)  in ttl_probe()
157 	platform_set_drvdata(pdev, mod);  in ttl_probe()
158 	spin_lock_init(&mod->lock);  in ttl_probe()
161 	mod->regs = devm_platform_ioremap_resource(pdev, 0);  in ttl_probe()
162 	if (IS_ERR(mod->regs))  in ttl_probe()
163 		return PTR_ERR(mod->regs);  in ttl_probe()
165 	ttl_setup_device(mod);  in ttl_probe()
168 	gpio = &mod->gpio;  in ttl_probe()