drivers/char/powernv-op-panel.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * OPAL Operator Panel Display Driver
26  * operator panel (character LCD display) on IBM Power Systems machines
29  * operator panel.
57 		if (token != -ERESTARTSYS)  in __op_panel_update_display()
82 		pr_debug("OPAL write op-panel call failed [rc=%d]\n", rc);  in __op_panel_update_display()
99 		return -EFBIG;  in oppanel_write()
106 			pr_err_ratelimited("OPAL call failed to write to op panel display [rc=%d]\n",  in oppanel_write()
109 			return -EIO;  in oppanel_write()
119 		return -EBUSY;  in oppanel_open()
147 	struct device_node *np = pdev->dev.of_node;  in oppanel_probe()
153 		pr_err_ratelimited("Operator panel length property not found\n");  in oppanel_probe()
158 		pr_err_ratelimited("Operator panel lines property not found\n");  in oppanel_probe()
163 	pr_devel("Operator panel of size %u found with %u lines of length %u\n",  in oppanel_probe()
168 		return -ENOMEM;  in oppanel_probe()
172 		rc = -ENOMEM;  in oppanel_probe()
206 	{ .compatible = "ibm,opal-oppanel" },
212 		.name		= "powernv-op-panel",
223 MODULE_DESCRIPTION("PowerNV Operator Panel LCD Display Driver");