add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/clk/at91/clk-audio-pll.c
..
..
@@ -1,14 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  *  Copyright (C) 2016 Atmel Corporation,
3
4
  *		       Songjun Wu <songjun.wu@atmel.com>,
4
5
  *                     Nicolas Ferre <nicolas.ferre@atmel.com>
5
6
  *  Copyright (C) 2017 Free Electrons,
6
7
  *		       Quentin Schulz <quentin.schulz@free-electrons.com>
7
- *
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
8
  *
13
9
  * The Sama5d2 SoC has two audio PLLs (PMC and PAD) that shares the same parent
14
10
  * (FRAC). FRAC can output between 620 and 700MHz and only multiply the rate of
..
..
@@ -32,7 +28,6 @@
32
28
  * rate - rate is adjustable.
33
29
  *        clk->rate = parent->rate / (qdaudio * div))
34
30
  * parent - fixed parent.  No clk_set_parent support
35
- *
36
31
  */
37
32
 
38
33
 #include <linux/clk.h>
..
..
@@ -42,6 +37,8 @@
42
37
 #include <linux/mfd/syscon.h>
43
38
 #include <linux/regmap.h>
44
39
 #include <linux/slab.h>
40
+
41
+#include "pmc.h"
45
42
 
46
43
 #define AUDIO_PLL_DIV_FRAC	BIT(22)
47
44
 #define AUDIO_PLL_ND_MAX	(AT91_PMC_AUDIO_PLL_ND_MASK >> \
..
..
@@ -338,7 +335,12 @@
338
335
 	pr_debug("A PLL/PMC: %s, rate = %lu (parent_rate = %lu)\n", __func__,
339
336
 		 rate, *parent_rate);
340
337
 
341
-	for (div = 1; div <= AUDIO_PLL_QDPMC_MAX; div++) {
338
+	if (!rate)
339
+		return 0;
340
+
341
+	best_parent_rate = clk_round_rate(pclk->clk, 1);
342
+	div = max(best_parent_rate / rate, 1UL);
343
+	for (; div <= AUDIO_PLL_QDPMC_MAX; div++) {
342
344
 		best_parent_rate = clk_round_rate(pclk->clk, rate * div);
343
345
 		tmp_rate = best_parent_rate / div;
344
346
 		tmp_diff = abs(rate - tmp_rate);
..
..
@@ -348,6 +350,8 @@
348
350
 			best_rate = tmp_rate;
349
351
 			best_diff = tmp_diff;
350
352
 			tmp_qd = div;
353
+			if (!best_diff)
354
+				break;	/* got exact match */
351
355
 		}
352
356
 	}
353
357
 
..
..
@@ -444,93 +448,94 @@
444
448
 	.set_rate = clk_audio_pll_pmc_set_rate,
445
449
 };
446
450
 
447
-static int of_sama5d2_clk_audio_pll_setup(struct device_node *np,
448
-					  struct clk_init_data *init,
449
-					  struct clk_hw *hw,
450
-					  struct regmap **clk_audio_regmap)
451
-{
452
-	struct regmap *regmap;
453
-	const char *parent_names[1];
454
-	int ret;
455
-
456
-	regmap = syscon_node_to_regmap(of_get_parent(np));
457
-	if (IS_ERR(regmap))
458
-		return PTR_ERR(regmap);
459
-
460
-	init->name = np->name;
461
-	of_clk_parent_fill(np, parent_names, 1);
462
-	init->parent_names = parent_names;
463
-	init->num_parents = 1;
464
-
465
-	hw->init = init;
466
-	*clk_audio_regmap = regmap;
467
-
468
-	ret = clk_hw_register(NULL, hw);
469
-	if (ret)
470
-		return ret;
471
-
472
-	return of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
473
-}
474
-
475
-static void __init of_sama5d2_clk_audio_pll_frac_setup(struct device_node *np)
451
+struct clk_hw * __init
452
+at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name,
453
+				 const char *parent_name)
476
454
 {
477
455
 	struct clk_audio_frac *frac_ck;
478
456
 	struct clk_init_data init = {};
457
+	int ret;
479
458
 
480
459
 	frac_ck = kzalloc(sizeof(*frac_ck), GFP_KERNEL);
481
460
 	if (!frac_ck)
482
-		return;
461
+		return ERR_PTR(-ENOMEM);
483
462
 
463
+	init.name = name;
484
464
 	init.ops = &audio_pll_frac_ops;
465
+	init.parent_names = &parent_name;
466
+	init.num_parents = 1;
485
467
 	init.flags = CLK_SET_RATE_GATE;
486
468
 
487
-	if (of_sama5d2_clk_audio_pll_setup(np, &init, &frac_ck->hw,
488
-					   &frac_ck->regmap))
469
+	frac_ck->hw.init = &init;
470
+	frac_ck->regmap = regmap;
471
+
472
+	ret = clk_hw_register(NULL, &frac_ck->hw);
473
+	if (ret) {
489
474
 		kfree(frac_ck);
475
+		return ERR_PTR(ret);
476
+	}
477
+
478
+	return &frac_ck->hw;
490
479
 }
491
480
 
492
-static void __init of_sama5d2_clk_audio_pll_pad_setup(struct device_node *np)
481
+struct clk_hw * __init
482
+at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name,
483
+				const char *parent_name)
493
484
 {
494
485
 	struct clk_audio_pad *apad_ck;
495
-	struct clk_init_data init = {};
486
+	struct clk_init_data init;
487
+	int ret;
496
488
 
497
489
 	apad_ck = kzalloc(sizeof(*apad_ck), GFP_KERNEL);
498
490
 	if (!apad_ck)
499
-		return;
491
+		return ERR_PTR(-ENOMEM);
500
492
 
493
+	init.name = name;
501
494
 	init.ops = &audio_pll_pad_ops;
495
+	init.parent_names = &parent_name;
496
+	init.num_parents = 1;
502
497
 	init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
503
498
 		CLK_SET_RATE_PARENT;
504
499
 
505
-	if (of_sama5d2_clk_audio_pll_setup(np, &init, &apad_ck->hw,
506
-					   &apad_ck->regmap))
500
+	apad_ck->hw.init = &init;
501
+	apad_ck->regmap = regmap;
502
+
503
+	ret = clk_hw_register(NULL, &apad_ck->hw);
504
+	if (ret) {
507
505
 		kfree(apad_ck);
506
+		return ERR_PTR(ret);
507
+	}
508
+
509
+	return &apad_ck->hw;
508
510
 }
509
511
 
510
-static void __init of_sama5d2_clk_audio_pll_pmc_setup(struct device_node *np)
512
+struct clk_hw * __init
513
+at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name,
514
+				const char *parent_name)
511
515
 {
512
516
 	struct clk_audio_pmc *apmc_ck;
513
-	struct clk_init_data init = {};
517
+	struct clk_init_data init;
518
+	int ret;
514
519
 
515
520
 	apmc_ck = kzalloc(sizeof(*apmc_ck), GFP_KERNEL);
516
521
 	if (!apmc_ck)
517
-		return;
522
+		return ERR_PTR(-ENOMEM);
518
523
 
524
+	init.name = name;
519
525
 	init.ops = &audio_pll_pmc_ops;
526
+	init.parent_names = &parent_name;
527
+	init.num_parents = 1;
520
528
 	init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
521
529
 		CLK_SET_RATE_PARENT;
522
530
 
523
-	if (of_sama5d2_clk_audio_pll_setup(np, &init, &apmc_ck->hw,
524
-					   &apmc_ck->regmap))
525
-		kfree(apmc_ck);
526
-}
531
+	apmc_ck->hw.init = &init;
532
+	apmc_ck->regmap = regmap;
527
533
 
528
-CLK_OF_DECLARE(of_sama5d2_clk_audio_pll_frac_setup,
529
-	       "atmel,sama5d2-clk-audio-pll-frac",
530
-	       of_sama5d2_clk_audio_pll_frac_setup);
531
-CLK_OF_DECLARE(of_sama5d2_clk_audio_pll_pad_setup,
532
-	       "atmel,sama5d2-clk-audio-pll-pad",
533
-	       of_sama5d2_clk_audio_pll_pad_setup);
534
-CLK_OF_DECLARE(of_sama5d2_clk_audio_pll_pmc_setup,
535
-	       "atmel,sama5d2-clk-audio-pll-pmc",
536
-	       of_sama5d2_clk_audio_pll_pmc_setup);
534
+	ret = clk_hw_register(NULL, &apmc_ck->hw);
535
+	if (ret) {
536
+		kfree(apmc_ck);
537
+		return ERR_PTR(ret);
538
+	}
539
+
540
+	return &apmc_ck->hw;
541
+}