gpio-mmio.c (c95baf12f5077419db01313ab61c2aac007d40cd) gpio-mmio.c (d19d2de61fb131abcd29f7c61d3f168f687bfd6e)
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Generic driver for memory-mapped GPIO controllers.
4 *
5 * Copyright 2008 MontaVista Software, Inc.
6 * Copyright 2008,2010 Anton Vorontsov <cbouatmailru@gmail.com>
7 *
8 * ....``.```~~~~````.`.`.`.`.```````'',,,.........`````......`.......

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384
385 if (gc->reg_dir_in)
386 if (!(gc->read_reg(gc->reg_dir_in) & bgpio_line2mask(gc, gpio)))
387 return GPIO_LINE_DIRECTION_OUT;
388
389 return GPIO_LINE_DIRECTION_IN;
390}
391
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Generic driver for memory-mapped GPIO controllers.
4 *
5 * Copyright 2008 MontaVista Software, Inc.
6 * Copyright 2008,2010 Anton Vorontsov <cbouatmailru@gmail.com>
7 *
8 * ....``.```~~~~````.`.`.`.`.```````'',,,.........`````......`.......

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384
385 if (gc->reg_dir_in)
386 if (!(gc->read_reg(gc->reg_dir_in) & bgpio_line2mask(gc, gpio)))
387 return GPIO_LINE_DIRECTION_OUT;
388
389 return GPIO_LINE_DIRECTION_IN;
390}
391
392static int bgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
392static void bgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
393{
394 unsigned long flags;
395
393{
394 unsigned long flags;
395
396 gc->set(gc, gpio, val);
397
398 spin_lock_irqsave(&gc->bgpio_lock, flags);
399
400 gc->bgpio_dir |= bgpio_line2mask(gc, gpio);
401
402 if (gc->reg_dir_in)
403 gc->write_reg(gc->reg_dir_in, ~gc->bgpio_dir);
404 if (gc->reg_dir_out)
405 gc->write_reg(gc->reg_dir_out, gc->bgpio_dir);
406
407 spin_unlock_irqrestore(&gc->bgpio_lock, flags);
396 spin_lock_irqsave(&gc->bgpio_lock, flags);
397
398 gc->bgpio_dir |= bgpio_line2mask(gc, gpio);
399
400 if (gc->reg_dir_in)
401 gc->write_reg(gc->reg_dir_in, ~gc->bgpio_dir);
402 if (gc->reg_dir_out)
403 gc->write_reg(gc->reg_dir_out, gc->bgpio_dir);
404
405 spin_unlock_irqrestore(&gc->bgpio_lock, flags);
406}
408
407
408static int bgpio_dir_out_dir_first(struct gpio_chip *gc, unsigned int gpio,
409 int val)
410{
411 bgpio_dir_out(gc, gpio, val);
412 gc->set(gc, gpio, val);
409 return 0;
410}
411
413 return 0;
414}
415
416static int bgpio_dir_out_val_first(struct gpio_chip *gc, unsigned int gpio,
417 int val)
418{
419 gc->set(gc, gpio, val);
420 bgpio_dir_out(gc, gpio, val);
421 return 0;
422}
423
412static int bgpio_setup_accessors(struct device *dev,
413 struct gpio_chip *gc,
414 bool byte_be)
415{
416
417 switch (gc->bgpio_bits) {
418 case 8:
419 gc->read_reg = bgpio_read8;

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533static int bgpio_setup_direction(struct gpio_chip *gc,
534 void __iomem *dirout,
535 void __iomem *dirin,
536 unsigned long flags)
537{
538 if (dirout || dirin) {
539 gc->reg_dir_out = dirout;
540 gc->reg_dir_in = dirin;
424static int bgpio_setup_accessors(struct device *dev,
425 struct gpio_chip *gc,
426 bool byte_be)
427{
428
429 switch (gc->bgpio_bits) {
430 case 8:
431 gc->read_reg = bgpio_read8;

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545static int bgpio_setup_direction(struct gpio_chip *gc,
546 void __iomem *dirout,
547 void __iomem *dirin,
548 unsigned long flags)
549{
550 if (dirout || dirin) {
551 gc->reg_dir_out = dirout;
552 gc->reg_dir_in = dirin;
541 gc->direction_output = bgpio_dir_out;
553 if (flags & BGPIOF_NO_SET_ON_INPUT)
554 gc->direction_output = bgpio_dir_out_dir_first;
555 else
556 gc->direction_output = bgpio_dir_out_val_first;
542 gc->direction_input = bgpio_dir_in;
543 gc->get_direction = bgpio_get_dir;
544 } else {
545 if (flags & BGPIOF_NO_OUTPUT)
546 gc->direction_output = bgpio_dir_out_err;
547 else
548 gc->direction_output = bgpio_simple_dir_out;
549 gc->direction_input = bgpio_simple_dir_in;

--- 264 unchanged lines hidden --- 		557 gc->direction_input = bgpio_dir_in;
558 gc->get_direction = bgpio_get_dir;
559 } else {
560 if (flags & BGPIOF_NO_OUTPUT)
561 gc->direction_output = bgpio_dir_out_err;
562 else
563 gc->direction_output = bgpio_simple_dir_out;
564 gc->direction_input = bgpio_simple_dir_in;

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