Release 4.18 drivers/staging/sm750fb/ddk750_power.c

// SPDX-License-Identifier: GPL-2.0
#include "ddk750_chip.h"
#include "ddk750_reg.h"
#include "ddk750_power.h"



void ddk750_set_dpms(enum dpms state)
{
	unsigned int value;

	if (sm750_get_chip_type() == SM750LE) {
		value = peek32(CRT_DISPLAY_CTRL) & ~CRT_DISPLAY_CTRL_DPMS_MASK;
		value |= (state << CRT_DISPLAY_CTRL_DPMS_SHIFT);
		poke32(CRT_DISPLAY_CTRL, value);
	} else {
		value = peek32(SYSTEM_CTRL);
		value = (value & ~SYSTEM_CTRL_DPMS_MASK) | state;
		poke32(SYSTEM_CTRL, value);
	}
}

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Sudip Mukherjee
50
66.67%
1
14.29%
Mike Rapoport
17
22.67%
2
28.57%
Matthieu Simon
4
5.33%
1
14.29%
Keerthi Reddy
2
2.67%
1
14.29%
Moshe Green
1
1.33%
1
14.29%
Elise Lennion
1
1.33%
1
14.29%
Total
75
100.00%
7
100.00%



static unsigned int get_power_mode(void)
{
	if (sm750_get_chip_type() == SM750LE)
		return 0;
	return peek32(POWER_MODE_CTRL) & POWER_MODE_CTRL_MODE_MASK;
}

Contributors
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Sudip Mukherjee
18
66.67%
1
14.29%
Supriya Karanth
3
11.11%
1
14.29%
Mike Rapoport
3
11.11%
2
28.57%
Matthieu Simon
1
3.70%
1
14.29%
Elise Lennion
1
3.70%
1
14.29%
Moshe Green
1
3.70%
1
14.29%
Total
27
100.00%
7
100.00%

/*
 * SM50x can operate in one of three modes: 0, 1 or Sleep.
 * On hardware reset, power mode 0 is default.
 */


void sm750_set_power_mode(unsigned int mode)
{
	unsigned int ctrl = 0;

	ctrl = peek32(POWER_MODE_CTRL) & ~POWER_MODE_CTRL_MODE_MASK;

	if (sm750_get_chip_type() == SM750LE)
		return;

	switch (mode) {
	case POWER_MODE_CTRL_MODE_MODE0:
		ctrl |= POWER_MODE_CTRL_MODE_MODE0;
		break;

	case POWER_MODE_CTRL_MODE_MODE1:
		ctrl |= POWER_MODE_CTRL_MODE_MODE1;
		break;

	case POWER_MODE_CTRL_MODE_SLEEP:
		ctrl |= POWER_MODE_CTRL_MODE_SLEEP;
		break;

	default:
		break;
	}

	/* Set up other fields in Power Control Register */
	if (mode == POWER_MODE_CTRL_MODE_SLEEP) {
		ctrl &= ~POWER_MODE_CTRL_OSC_INPUT;
#ifdef VALIDATION_CHIP
		ctrl &= ~POWER_MODE_CTRL_336CLK;
#endif
	} else {
		ctrl |= POWER_MODE_CTRL_OSC_INPUT;
#ifdef VALIDATION_CHIP
		ctrl |= POWER_MODE_CTRL_336CLK;
#endif
	}

	/* Program new power mode. */
	poke32(POWER_MODE_CTRL, ctrl);
}

Contributors
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CommitProp
Sudip Mukherjee
73
64.60%
1
14.29%
Mike Rapoport
23
20.35%
2
28.57%
Elise Lennion
13
11.50%
1
14.29%
Matthieu Simon
2
1.77%
1
14.29%
Arnd Bergmann
1
0.88%
1
14.29%
Moshe Green
1
0.88%
1
14.29%
Total
113
100.00%
7
100.00%



void sm750_set_current_gate(unsigned int gate)
{
	if (get_power_mode() == POWER_MODE_CTRL_MODE_MODE1)
		poke32(MODE1_GATE, gate);
	else
		poke32(MODE0_GATE, gate);
}

Contributors
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Tokens
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CommitProp
Sudip Mukherjee
17
54.84%
1
20.00%
Elise Lennion
11
35.48%
2
40.00%
Matthieu Simon
2
6.45%
1
20.00%
Arnd Bergmann
1
3.23%
1
20.00%
Total
31
100.00%
5
100.00%

/*
 * This function enable/disable the 2D engine.
 */


void sm750_enable_2d_engine(unsigned int enable)
{
	u32 gate;

	gate = peek32(CURRENT_GATE);
	if (enable)
		gate |= (CURRENT_GATE_DE | CURRENT_GATE_CSC);
	else
		gate &= ~(CURRENT_GATE_DE | CURRENT_GATE_CSC);

	sm750_set_current_gate(gate);
}

Contributors
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CommitProp
Sudip Mukherjee
29
63.04%
1
20.00%
Mike Rapoport
13
28.26%
1
20.00%
Arnd Bergmann
2
4.35%
1
20.00%
Amitoj Kaur Chawla
1
2.17%
1
20.00%
Matthieu Simon
1
2.17%
1
20.00%
Total
46
100.00%
5
100.00%



void sm750_enable_dma(unsigned int enable)
{
	u32 gate;

	/* Enable DMA Gate */
	gate = peek32(CURRENT_GATE);
	if (enable)
		gate |= CURRENT_GATE_DMA;
	else
		gate &= ~CURRENT_GATE_DMA;

	sm750_set_current_gate(gate);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sudip Mukherjee
30
76.92%
1
20.00%
Mike Rapoport
5
12.82%
1
20.00%
Arnd Bergmann
2
5.13%
1
20.00%
Amitoj Kaur Chawla
1
2.56%
1
20.00%
Matthieu Simon
1
2.56%
1
20.00%
Total
39
100.00%
5
100.00%

/*
 * This function enable/disable the GPIO Engine
 */


void sm750_enable_gpio(unsigned int enable)
{
	u32 gate;

	/* Enable GPIO Gate */
	gate = peek32(CURRENT_GATE);
	if (enable)
		gate |= CURRENT_GATE_GPIO;
	else
		gate &= ~CURRENT_GATE_GPIO;

	sm750_set_current_gate(gate);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Sudip Mukherjee
30
76.92%
1
20.00%
Mike Rapoport
5
12.82%
1
20.00%
Arnd Bergmann
2
5.13%
1
20.00%
Matthieu Simon
1
2.56%
1
20.00%
Amitoj Kaur Chawla
1
2.56%
1
20.00%
Total
39
100.00%
5
100.00%

/*
 * This function enable/disable the I2C Engine
 */


void sm750_enable_i2c(unsigned int enable)
{
	u32 gate;

	/* Enable I2C Gate */
	gate = peek32(CURRENT_GATE);
	if (enable)
		gate |= CURRENT_GATE_I2C;
	else
		gate &= ~CURRENT_GATE_I2C;

	sm750_set_current_gate(gate);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Sudip Mukherjee
30
76.92%
1
20.00%
Mike Rapoport
5
12.82%
1
20.00%
Arnd Bergmann
2
5.13%
1
20.00%
Matthieu Simon
1
2.56%
1
20.00%
Amitoj Kaur Chawla
1
2.56%
1
20.00%
Total
39
100.00%
5
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Sudip Mukherjee
289
68.32%
1
5.56%
Mike Rapoport
71
16.78%
6
33.33%
Elise Lennion
27
6.38%
4
22.22%
Matthieu Simon
13
3.07%
1
5.56%
Arnd Bergmann
10
2.36%
1
5.56%
Amitoj Kaur Chawla
4
0.95%
1
5.56%
Supriya Karanth
3
0.71%
1
5.56%
Moshe Green
3
0.71%
1
5.56%
Keerthi Reddy
2
0.47%
1
5.56%
Greg Kroah-Hartman
1
0.24%
1
5.56%
Total
423
100.00%
18
100.00%
Directory: drivers/staging/sm750fb

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