/*
 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/err.h>
#include <linux/io.h>
#include <linux/nvmem-consumer.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include "tsens.h"

#define S0_ST_ADDR		0x1030
#define SN_ADDR_OFFSET		0x4
#define SN_ST_TEMP_MASK		0x3ff
#define CAL_DEGC_PT1		30
#define CAL_DEGC_PT2		120
#define SLOPE_FACTOR		1000
#define SLOPE_DEFAULT		3200

char *qfprom_read(struct device *dev, const char *cname)
{
	struct nvmem_cell *cell;
	ssize_t data;
	char *ret;

	cell = nvmem_cell_get(dev, cname);
	if (IS_ERR(cell))
		return ERR_CAST(cell);

	ret = nvmem_cell_read(cell, &data);
	nvmem_cell_put(cell);

	return ret;
}

/*
 * Use this function on devices where slope and offset calculations
 * depend on calibration data read from qfprom. On others the slope
 * and offset values are derived from tz->tzp->slope and tz->tzp->offset
 * resp.
 */
void compute_intercept_slope(struct tsens_device *tmdev, u32 *p1,
			     u32 *p2, u32 mode)
{
	int i;
	int num, den;

	for (i = 0; i < tmdev->num_sensors; i++) {
		dev_dbg(tmdev->dev,
			"sensor%d - data_point1:%#x data_point2:%#x\n",
			i, p1[i], p2[i]);

		tmdev->sensor[i].slope = SLOPE_DEFAULT;
		if (mode == TWO_PT_CALIB) {
			/*
			 * slope (m) = adc_code2 - adc_code1 (y2 - y1)/
			 *	temp_120_degc - temp_30_degc (x2 - x1)
			 */
			num = p2[i] - p1[i];
			num *= SLOPE_FACTOR;
			den = CAL_DEGC_PT2 - CAL_DEGC_PT1;
			tmdev->sensor[i].slope = num / den;
		}

		tmdev->sensor[i].offset = (p1[i] * SLOPE_FACTOR) -
				(CAL_DEGC_PT1 *
				tmdev->sensor[i].slope);
		dev_dbg(tmdev->dev, "offset:%d\n", tmdev->sensor[i].offset);
	}
}

static inline int code_to_degc(u32 adc_code, const struct tsens_sensor *s)
{
	int degc, num, den;

	num = (adc_code * SLOPE_FACTOR) - s->offset;
	den = s->slope;

	if (num > 0)
		degc = num + (den / 2);
	else if (num < 0)
		degc = num - (den / 2);
	else
		degc = num;

	degc /= den;

	return degc;
}

int get_temp_common(struct tsens_device *tmdev, int id, int *temp)
{
	struct tsens_sensor *s = &tmdev->sensor[id];
	u32 code;
	unsigned int sensor_addr;
	int last_temp = 0, ret;

	sensor_addr = S0_ST_ADDR + s->hw_id * SN_ADDR_OFFSET;
	ret = regmap_read(tmdev->map, sensor_addr, &code);
	if (ret)
		return ret;
	last_temp = code & SN_ST_TEMP_MASK;

	*temp = code_to_degc(last_temp, s) * 1000;

	return 0;
}

static const struct regmap_config tsens_config = {
	.reg_bits	= 32,
	.val_bits	= 32,
	.reg_stride	= 4,
};

int __init init_common(struct tsens_device *tmdev)
{
	void __iomem *base;

	base = of_iomap(tmdev->dev->of_node, 0);
	if (!base)
		return -EINVAL;

	tmdev->map = devm_regmap_init_mmio(tmdev->dev, base, &tsens_config);
	if (IS_ERR(tmdev->map)) {
		iounmap(base);
		return PTR_ERR(tmdev->map);
	}

	return 0;
}
4e2ce59c25ab66e47ab1f0'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=83280e90ef001f77a64e2ce59c25ab66e47ab1f0'>da9055.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='83280e90ef001f77a64e2ce59c25ab66e47ab1f0'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-08 11:42:04 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-08 11:42:04 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=83280e90ef001f77a64e2ce59c25ab66e47ab1f0'>83280e90ef001f77a64e2ce59c25ab66e47ab1f0</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/sound/da9055.h?id=83280e90ef001f77a64e2ce59c25ab66e47ab1f0'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=83280e90ef001f77a64e2ce59c25ab66e47ab1f0'>ec0a5842e2fbc0f4abaff55299acac397b8da5c3</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/sound/da9055.h?h=nds-private-remove&amp;id=83280e90ef001f77a64e2ce59c25ab66e47ab1f0'>include/sound/da9055.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=cc250e267bd56c531b0bee455fc724d50af83fac'>cc250e267bd56c531b0bee455fc724d50af83fac</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/sound/da9055.h?h=nds-private-remove&amp;id=83280e90ef001f77a64e2ce59c25ab66e47ab1f0&amp;id2=cc250e267bd56c531b0bee455fc724d50af83fac'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=0a8fd1346254974c3a852338508e4a4cddbb35f1'>0a8fd1346254974c3a852338508e4a4cddbb35f1</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/sound/da9055.h?h=nds-private-remove&amp;id=83280e90ef001f77a64e2ce59c25ab66e47ab1f0&amp;id2=0a8fd1346254974c3a852338508e4a4cddbb35f1'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb</div><div class='commit-msg'>Pull USB fixes from Greg KH:
 "Here are a bunch of USB fixes for 4.10-rc3. Yeah, it's a lot, an
  artifact of the holiday break I think.

  Lots of gadget and the usual XHCI fixups for reported issues (one day
  that driver will calm down...) Also included are a bunch of usb-serial
  driver fixes, and for good measure, a number of much-reported MUSB
  driver issues have finally been resolved.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (72 commits)
  USB: fix problems with duplicate endpoint addresses
  usb: ohci-at91: use descriptor-based gpio APIs correctly
  usb: storage: unusual_uas: Add JMicron JMS56x to unusual device
  usb: hub: Move hub_port_disable() to fix warning if PM is disabled
  usb: musb: blackfin: add bfin_fifo_offset in bfin_ops
  usb: musb: fix compilation warning on unused function
  usb: musb: Fix trying to free already-free IRQ 4
  usb: musb: dsps: implement clear_ep_rxintr() callback
  usb: musb: core: add clear_ep_rxintr() to musb_platform_ops
  USB: serial: ti_usb_3410_5052: fix NULL-deref at open
  USB: serial: spcp8x5: fix NULL-deref at open
  USB: serial: quatech2: fix sleep-while-atomic in close
  USB: serial: pl2303: fix NULL-deref at open
  USB: serial: oti6858: fix NULL-deref at open
  USB: serial: omninet: fix NULL-derefs at open and disconnect
  USB: serial: mos7840: fix misleading interrupt-URB comment
  USB: serial: mos7840: remove unused write URB
  USB: serial: mos7840: fix NULL-deref at open
  USB: serial: mos7720: remove obsolete port initialisation
  USB: serial: mos7720: fix parallel probe
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=83280e90ef001f77a64e2ce59c25ab66e47ab1f0'>Diffstat</a> (limited to 'include/sound/da9055.h')</div><table summary='diffstat' class='diffstat'>