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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/media/dvb-frontends/stv6110x.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23 	STV6110(A) Silicon tuner driver
34 
....@@ -5,19 +6,6 @@
56 
67 	Copyright (C) ST Microelectronics
78 
8
-	This program is free software; you can redistribute it and/or modify
9
-	it under the terms of the GNU General Public License as published by
10
-	the Free Software Foundation; either version 2 of the License, or
11
-	(at your option) any later version.
12
-
13
-	This program is distributed in the hope that it will be useful,
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-	but WITHOUT ANY WARRANTY; without even the implied warranty of
15
-	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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-	GNU General Public License for more details.
17
-
18
-	You should have received a copy of the GNU General Public License
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-	along with this program; if not, write to the Free Software
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-	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
219 */
2210 
2311 #include <linux/init.h>
....@@ -345,6 +333,41 @@
345333 	kfree(stv6110x);
346334 }
347335 
336
+static void st6110x_init_regs(struct stv6110x_state *stv6110x)
337
+{
338
+	u8 default_regs[] = {0x07, 0x11, 0xdc, 0x85, 0x17, 0x01, 0xe6, 0x1e};
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+
340
+	memcpy(stv6110x->regs, default_regs, 8);
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+}
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+
343
+static void stv6110x_setup_divider(struct stv6110x_state *stv6110x)
344
+{
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+	switch (stv6110x->config->clk_div) {
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+	default:
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+	case 1:
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+		STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2],
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+				  CTRL2_CO_DIV,
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+				  0);
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+		break;
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+	case 2:
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+		STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2],
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+				  CTRL2_CO_DIV,
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+				  1);
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+		break;
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+	case 4:
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+		STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2],
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+				  CTRL2_CO_DIV,
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+				  2);
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+		break;
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+	case 8:
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+	case 0:
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+		STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2],
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+				  CTRL2_CO_DIV,
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+				  3);
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+		break;
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+	}
369
+}
370
+
348371 static const struct dvb_tuner_ops stv6110x_ops = {
349372 	.info = {
350373 		.name		  = "STV6110(A) Silicon Tuner",
....@@ -354,7 +377,7 @@
354377 	.release		= stv6110x_release
355378 };
356379 
357
-static const struct stv6110x_devctl stv6110x_ctl = {
380
+static struct stv6110x_devctl stv6110x_ctl = {
358381 	.tuner_init		= stv6110x_init,
359382 	.tuner_sleep		= stv6110x_sleep,
360383 	.tuner_set_mode		= stv6110x_set_mode,
....@@ -368,47 +391,103 @@
368391 	.tuner_get_status	= stv6110x_get_status,
369392 };
370393 
394
+static void stv6110x_set_frontend_opts(struct stv6110x_state *stv6110x)
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+{
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+	stv6110x->frontend->tuner_priv		= stv6110x;
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+	stv6110x->frontend->ops.tuner_ops	= stv6110x_ops;
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+}
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+
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+static struct stv6110x_devctl *stv6110x_get_devctl(struct i2c_client *client)
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+{
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+	struct stv6110x_state *stv6110x = i2c_get_clientdata(client);
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+
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+	dev_dbg(&client->dev, "\n");
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+
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+	return stv6110x->devctl;
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+}
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+
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+static int stv6110x_probe(struct i2c_client *client,
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+			  const struct i2c_device_id *id)
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+{
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+	struct stv6110x_config *config = client->dev.platform_data;
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+
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+	struct stv6110x_state *stv6110x;
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+
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+	stv6110x = kzalloc(sizeof(*stv6110x), GFP_KERNEL);
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+	if (!stv6110x)
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+		return -ENOMEM;
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+
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+	stv6110x->frontend	= config->frontend;
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+	stv6110x->i2c		= client->adapter;
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+	stv6110x->config	= config;
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+	stv6110x->devctl	= &stv6110x_ctl;
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+
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+	st6110x_init_regs(stv6110x);
426
+	stv6110x_setup_divider(stv6110x);
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+	stv6110x_set_frontend_opts(stv6110x);
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+
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+	dev_info(&stv6110x->i2c->dev, "Probed STV6110x\n");
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+
431
+	i2c_set_clientdata(client, stv6110x);
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+
433
+	/* setup callbacks */
434
+	config->get_devctl = stv6110x_get_devctl;
435
+
436
+	return 0;
437
+}
438
+
439
+static int stv6110x_remove(struct i2c_client *client)
440
+{
441
+	struct stv6110x_state *stv6110x = i2c_get_clientdata(client);
442
+
443
+	stv6110x_release(stv6110x->frontend);
444
+	return 0;
445
+}
446
+
371447 const struct stv6110x_devctl *stv6110x_attach(struct dvb_frontend *fe,
372448 					const struct stv6110x_config *config,
373449 					struct i2c_adapter *i2c)
374450 {
375451 	struct stv6110x_state *stv6110x;
376
-	u8 default_regs[] = {0x07, 0x11, 0xdc, 0x85, 0x17, 0x01, 0xe6, 0x1e};
377452 
378
-	stv6110x = kzalloc(sizeof (struct stv6110x_state), GFP_KERNEL);
453
+	stv6110x = kzalloc(sizeof(*stv6110x), GFP_KERNEL);
379454 	if (!stv6110x)
380455 		return NULL;
381456 
457
+	stv6110x->frontend	= fe;
382458 	stv6110x->i2c		= i2c;
383459 	stv6110x->config	= config;
384460 	stv6110x->devctl	= &stv6110x_ctl;
385
-	memcpy(stv6110x->regs, default_regs, 8);
386461 
387
-	/* setup divider */
388
-	switch (stv6110x->config->clk_div) {
389
-	default:
390
-	case 1:
391
-		STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 0);
392
-		break;
393
-	case 2:
394
-		STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 1);
395
-		break;
396
-	case 4:
397
-		STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 2);
398
-		break;
399
-	case 8:
400
-	case 0:
401
-		STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 3);
402
-		break;
403
-	}
462
+	st6110x_init_regs(stv6110x);
463
+	stv6110x_setup_divider(stv6110x);
464
+	stv6110x_set_frontend_opts(stv6110x);
404465 
405466 	fe->tuner_priv		= stv6110x;
406467 	fe->ops.tuner_ops	= stv6110x_ops;
407468 
408
-	printk(KERN_INFO "%s: Attaching STV6110x\n", __func__);
469
+	dev_info(&stv6110x->i2c->dev, "Attaching STV6110x\n");
409470 	return stv6110x->devctl;
410471 }
411
-EXPORT_SYMBOL(stv6110x_attach);
472
+EXPORT_SYMBOL_GPL(stv6110x_attach);
473
+
474
+static const struct i2c_device_id stv6110x_id_table[] = {
475
+	{"stv6110x", 0},
476
+	{}
477
+};
478
+MODULE_DEVICE_TABLE(i2c, stv6110x_id_table);
479
+
480
+static struct i2c_driver stv6110x_driver = {
481
+	.driver = {
482
+		.name	= "stv6110x",
483
+		.suppress_bind_attrs = true,
484
+	},
485
+	.probe		= stv6110x_probe,
486
+	.remove		= stv6110x_remove,
487
+	.id_table	= stv6110x_id_table,
488
+};
489
+
490
+module_i2c_driver(stv6110x_driver);
412491 
413492 MODULE_AUTHOR("Manu Abraham");
414493 MODULE_DESCRIPTION("STV6110x Silicon tuner");