mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
512
drivers/thermal/rcar_thermal.c
Normal file
512
drivers/thermal/rcar_thermal.c
Normal file
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@ -0,0 +1,512 @@
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/*
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* R-Car THS/TSC thermal sensor driver
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*
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* Copyright (C) 2012 Renesas Solutions Corp.
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/irq.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/reboot.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <linux/thermal.h>
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#define IDLE_INTERVAL 5000
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#define COMMON_STR 0x00
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#define COMMON_ENR 0x04
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#define COMMON_INTMSK 0x0c
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#define REG_POSNEG 0x20
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#define REG_FILONOFF 0x28
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#define REG_THSCR 0x2c
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#define REG_THSSR 0x30
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#define REG_INTCTRL 0x34
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/* THSCR */
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#define CPCTL (1 << 12)
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/* THSSR */
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#define CTEMP 0x3f
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struct rcar_thermal_common {
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void __iomem *base;
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struct device *dev;
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struct list_head head;
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spinlock_t lock;
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};
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struct rcar_thermal_priv {
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void __iomem *base;
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struct rcar_thermal_common *common;
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struct thermal_zone_device *zone;
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struct delayed_work work;
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struct mutex lock;
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struct list_head list;
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int id;
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int ctemp;
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};
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#define rcar_thermal_for_each_priv(pos, common) \
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list_for_each_entry(pos, &common->head, list)
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#define MCELSIUS(temp) ((temp) * 1000)
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#define rcar_zone_to_priv(zone) ((zone)->devdata)
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#define rcar_priv_to_dev(priv) ((priv)->common->dev)
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#define rcar_has_irq_support(priv) ((priv)->common->base)
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#define rcar_id_to_shift(priv) ((priv)->id * 8)
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#ifdef DEBUG
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# define rcar_force_update_temp(priv) 1
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#else
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# define rcar_force_update_temp(priv) 0
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#endif
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/*
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* basic functions
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*/
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#define rcar_thermal_common_read(c, r) \
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_rcar_thermal_common_read(c, COMMON_ ##r)
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static u32 _rcar_thermal_common_read(struct rcar_thermal_common *common,
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u32 reg)
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{
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return ioread32(common->base + reg);
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}
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#define rcar_thermal_common_write(c, r, d) \
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_rcar_thermal_common_write(c, COMMON_ ##r, d)
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static void _rcar_thermal_common_write(struct rcar_thermal_common *common,
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u32 reg, u32 data)
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{
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iowrite32(data, common->base + reg);
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}
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#define rcar_thermal_common_bset(c, r, m, d) \
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_rcar_thermal_common_bset(c, COMMON_ ##r, m, d)
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static void _rcar_thermal_common_bset(struct rcar_thermal_common *common,
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u32 reg, u32 mask, u32 data)
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{
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u32 val;
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val = ioread32(common->base + reg);
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val &= ~mask;
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val |= (data & mask);
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iowrite32(val, common->base + reg);
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}
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#define rcar_thermal_read(p, r) _rcar_thermal_read(p, REG_ ##r)
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static u32 _rcar_thermal_read(struct rcar_thermal_priv *priv, u32 reg)
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{
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return ioread32(priv->base + reg);
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}
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#define rcar_thermal_write(p, r, d) _rcar_thermal_write(p, REG_ ##r, d)
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static void _rcar_thermal_write(struct rcar_thermal_priv *priv,
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u32 reg, u32 data)
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{
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iowrite32(data, priv->base + reg);
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}
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#define rcar_thermal_bset(p, r, m, d) _rcar_thermal_bset(p, REG_ ##r, m, d)
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static void _rcar_thermal_bset(struct rcar_thermal_priv *priv, u32 reg,
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u32 mask, u32 data)
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{
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u32 val;
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val = ioread32(priv->base + reg);
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val &= ~mask;
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val |= (data & mask);
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iowrite32(val, priv->base + reg);
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}
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/*
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* zone device functions
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*/
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static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv)
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{
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struct device *dev = rcar_priv_to_dev(priv);
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int i;
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int ctemp, old, new;
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int ret = -EINVAL;
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mutex_lock(&priv->lock);
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/*
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* TSC decides a value of CPTAP automatically,
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* and this is the conditions which validate interrupt.
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*/
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rcar_thermal_bset(priv, THSCR, CPCTL, CPCTL);
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ctemp = 0;
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old = ~0;
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for (i = 0; i < 128; i++) {
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/*
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* we need to wait 300us after changing comparator offset
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* to get stable temperature.
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* see "Usage Notes" on datasheet
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*/
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udelay(300);
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new = rcar_thermal_read(priv, THSSR) & CTEMP;
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if (new == old) {
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ctemp = new;
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break;
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}
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old = new;
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}
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if (!ctemp) {
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dev_err(dev, "thermal sensor was broken\n");
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goto err_out_unlock;
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}
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/*
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* enable IRQ
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*/
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if (rcar_has_irq_support(priv)) {
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rcar_thermal_write(priv, FILONOFF, 0);
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/* enable Rising/Falling edge interrupt */
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rcar_thermal_write(priv, POSNEG, 0x1);
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rcar_thermal_write(priv, INTCTRL, (((ctemp - 0) << 8) |
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((ctemp - 1) << 0)));
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}
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dev_dbg(dev, "thermal%d %d -> %d\n", priv->id, priv->ctemp, ctemp);
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priv->ctemp = ctemp;
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ret = 0;
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err_out_unlock:
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mutex_unlock(&priv->lock);
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return ret;
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}
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static int rcar_thermal_get_temp(struct thermal_zone_device *zone,
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unsigned long *temp)
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{
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struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
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if (!rcar_has_irq_support(priv) || rcar_force_update_temp(priv))
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rcar_thermal_update_temp(priv);
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mutex_lock(&priv->lock);
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*temp = MCELSIUS((priv->ctemp * 5) - 65);
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mutex_unlock(&priv->lock);
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return 0;
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}
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static int rcar_thermal_get_trip_type(struct thermal_zone_device *zone,
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int trip, enum thermal_trip_type *type)
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{
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struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
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struct device *dev = rcar_priv_to_dev(priv);
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/* see rcar_thermal_get_temp() */
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switch (trip) {
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case 0: /* +90 <= temp */
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*type = THERMAL_TRIP_CRITICAL;
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break;
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default:
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dev_err(dev, "rcar driver trip error\n");
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return -EINVAL;
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}
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return 0;
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}
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static int rcar_thermal_get_trip_temp(struct thermal_zone_device *zone,
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int trip, unsigned long *temp)
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{
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struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
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struct device *dev = rcar_priv_to_dev(priv);
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/* see rcar_thermal_get_temp() */
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switch (trip) {
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case 0: /* +90 <= temp */
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*temp = MCELSIUS(90);
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break;
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default:
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dev_err(dev, "rcar driver trip error\n");
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return -EINVAL;
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}
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return 0;
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}
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static int rcar_thermal_notify(struct thermal_zone_device *zone,
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int trip, enum thermal_trip_type type)
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{
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struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
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struct device *dev = rcar_priv_to_dev(priv);
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switch (type) {
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case THERMAL_TRIP_CRITICAL:
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/* FIXME */
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dev_warn(dev, "Thermal reached to critical temperature\n");
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break;
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default:
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break;
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}
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return 0;
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}
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static struct thermal_zone_device_ops rcar_thermal_zone_ops = {
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.get_temp = rcar_thermal_get_temp,
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.get_trip_type = rcar_thermal_get_trip_type,
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.get_trip_temp = rcar_thermal_get_trip_temp,
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.notify = rcar_thermal_notify,
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};
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/*
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* interrupt
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*/
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#define rcar_thermal_irq_enable(p) _rcar_thermal_irq_ctrl(p, 1)
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#define rcar_thermal_irq_disable(p) _rcar_thermal_irq_ctrl(p, 0)
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static void _rcar_thermal_irq_ctrl(struct rcar_thermal_priv *priv, int enable)
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{
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struct rcar_thermal_common *common = priv->common;
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unsigned long flags;
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u32 mask = 0x3 << rcar_id_to_shift(priv); /* enable Rising/Falling */
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spin_lock_irqsave(&common->lock, flags);
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rcar_thermal_common_bset(common, INTMSK, mask, enable ? 0 : mask);
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spin_unlock_irqrestore(&common->lock, flags);
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}
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static void rcar_thermal_work(struct work_struct *work)
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{
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struct rcar_thermal_priv *priv;
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unsigned long cctemp, nctemp;
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priv = container_of(work, struct rcar_thermal_priv, work.work);
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rcar_thermal_get_temp(priv->zone, &cctemp);
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rcar_thermal_update_temp(priv);
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rcar_thermal_irq_enable(priv);
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|
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rcar_thermal_get_temp(priv->zone, &nctemp);
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if (nctemp != cctemp)
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thermal_zone_device_update(priv->zone);
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}
|
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|
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static u32 rcar_thermal_had_changed(struct rcar_thermal_priv *priv, u32 status)
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{
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struct device *dev = rcar_priv_to_dev(priv);
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|
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status = (status >> rcar_id_to_shift(priv)) & 0x3;
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|
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if (status) {
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dev_dbg(dev, "thermal%d %s%s\n",
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priv->id,
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(status & 0x2) ? "Rising " : "",
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||||
(status & 0x1) ? "Falling" : "");
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}
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|
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return status;
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||||
}
|
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|
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static irqreturn_t rcar_thermal_irq(int irq, void *data)
|
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{
|
||||
struct rcar_thermal_common *common = data;
|
||||
struct rcar_thermal_priv *priv;
|
||||
unsigned long flags;
|
||||
u32 status, mask;
|
||||
|
||||
spin_lock_irqsave(&common->lock, flags);
|
||||
|
||||
mask = rcar_thermal_common_read(common, INTMSK);
|
||||
status = rcar_thermal_common_read(common, STR);
|
||||
rcar_thermal_common_write(common, STR, 0x000F0F0F & mask);
|
||||
|
||||
spin_unlock_irqrestore(&common->lock, flags);
|
||||
|
||||
status = status & ~mask;
|
||||
|
||||
/*
|
||||
* check the status
|
||||
*/
|
||||
rcar_thermal_for_each_priv(priv, common) {
|
||||
if (rcar_thermal_had_changed(priv, status)) {
|
||||
rcar_thermal_irq_disable(priv);
|
||||
schedule_delayed_work(&priv->work,
|
||||
msecs_to_jiffies(300));
|
||||
}
|
||||
}
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
/*
|
||||
* platform functions
|
||||
*/
|
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static int rcar_thermal_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct rcar_thermal_common *common;
|
||||
struct rcar_thermal_priv *priv;
|
||||
struct device *dev = &pdev->dev;
|
||||
struct resource *res, *irq;
|
||||
int mres = 0;
|
||||
int i;
|
||||
int ret = -ENODEV;
|
||||
int idle = IDLE_INTERVAL;
|
||||
|
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common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL);
|
||||
if (!common)
|
||||
return -ENOMEM;
|
||||
|
||||
INIT_LIST_HEAD(&common->head);
|
||||
spin_lock_init(&common->lock);
|
||||
common->dev = dev;
|
||||
|
||||
pm_runtime_enable(dev);
|
||||
pm_runtime_get_sync(dev);
|
||||
|
||||
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
|
||||
if (irq) {
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* platform has IRQ support.
|
||||
* Then, drier use common register
|
||||
*/
|
||||
|
||||
ret = devm_request_irq(dev, irq->start, rcar_thermal_irq, 0,
|
||||
dev_name(dev), common);
|
||||
if (ret) {
|
||||
dev_err(dev, "irq request failed\n ");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* rcar_has_irq_support() will be enabled
|
||||
*/
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, mres++);
|
||||
common->base = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(common->base))
|
||||
return PTR_ERR(common->base);
|
||||
|
||||
/* enable temperature comparation */
|
||||
rcar_thermal_common_write(common, ENR, 0x00030303);
|
||||
|
||||
idle = 0; /* polling delay is not needed */
|
||||
}
|
||||
|
||||
for (i = 0;; i++) {
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, mres++);
|
||||
if (!res)
|
||||
break;
|
||||
|
||||
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv) {
|
||||
ret = -ENOMEM;
|
||||
goto error_unregister;
|
||||
}
|
||||
|
||||
priv->base = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(priv->base)) {
|
||||
ret = PTR_ERR(priv->base);
|
||||
goto error_unregister;
|
||||
}
|
||||
|
||||
priv->common = common;
|
||||
priv->id = i;
|
||||
mutex_init(&priv->lock);
|
||||
INIT_LIST_HEAD(&priv->list);
|
||||
INIT_DELAYED_WORK(&priv->work, rcar_thermal_work);
|
||||
rcar_thermal_update_temp(priv);
|
||||
|
||||
priv->zone = thermal_zone_device_register("rcar_thermal",
|
||||
1, 0, priv,
|
||||
&rcar_thermal_zone_ops, NULL, 0,
|
||||
idle);
|
||||
if (IS_ERR(priv->zone)) {
|
||||
dev_err(dev, "can't register thermal zone\n");
|
||||
ret = PTR_ERR(priv->zone);
|
||||
goto error_unregister;
|
||||
}
|
||||
|
||||
if (rcar_has_irq_support(priv))
|
||||
rcar_thermal_irq_enable(priv);
|
||||
|
||||
list_move_tail(&priv->list, &common->head);
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, common);
|
||||
|
||||
dev_info(dev, "%d sensor probed\n", i);
|
||||
|
||||
return 0;
|
||||
|
||||
error_unregister:
|
||||
rcar_thermal_for_each_priv(priv, common) {
|
||||
thermal_zone_device_unregister(priv->zone);
|
||||
if (rcar_has_irq_support(priv))
|
||||
rcar_thermal_irq_disable(priv);
|
||||
}
|
||||
|
||||
pm_runtime_put(dev);
|
||||
pm_runtime_disable(dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rcar_thermal_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct rcar_thermal_common *common = platform_get_drvdata(pdev);
|
||||
struct device *dev = &pdev->dev;
|
||||
struct rcar_thermal_priv *priv;
|
||||
|
||||
rcar_thermal_for_each_priv(priv, common) {
|
||||
thermal_zone_device_unregister(priv->zone);
|
||||
if (rcar_has_irq_support(priv))
|
||||
rcar_thermal_irq_disable(priv);
|
||||
}
|
||||
|
||||
pm_runtime_put(dev);
|
||||
pm_runtime_disable(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id rcar_thermal_dt_ids[] = {
|
||||
{ .compatible = "renesas,rcar-thermal", },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, rcar_thermal_dt_ids);
|
||||
|
||||
static struct platform_driver rcar_thermal_driver = {
|
||||
.driver = {
|
||||
.name = "rcar_thermal",
|
||||
.of_match_table = rcar_thermal_dt_ids,
|
||||
},
|
||||
.probe = rcar_thermal_probe,
|
||||
.remove = rcar_thermal_remove,
|
||||
};
|
||||
module_platform_driver(rcar_thermal_driver);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("R-Car THS/TSC thermal sensor driver");
|
||||
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
|
||||
Loading…
Add table
Add a link
Reference in a new issue