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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 22:11:50 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 22:11:50 -0500
commit3aacd625f20129f5a41ea3ff3b5353b0e4dabd01 (patch)
tree7cf4ea65397f80098b30494df31cfc8f5fa26d63 /drivers
parent7e21774db5cc9cf8fe93a64a2f0c6cf47db8ab24 (diff)
parent2a1d689c9ba42a6066540fb221b6ecbd6298b728 (diff)
Merge branch 'akpm' (incoming from Andrew)
Merge second patch-bomb from Andrew Morton: - various misc bits - the rest of MM - add generic fixmap.h, use it - backlight updates - dynamic_debug updates - printk() updates - checkpatch updates - binfmt_elf - ramfs - init/ - autofs4 - drivers/rtc - nilfs - hfsplus - Documentation/ - coredump - procfs - fork - exec - kexec - kdump - partitions - rapidio - rbtree - userns - memstick - w1 - decompressors * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (197 commits) lib/decompress_unlz4.c: always set an error return code on failures romfs: fix returm err while getting inode in fill_super drivers/w1/masters/w1-gpio.c: add strong pullup emulation drivers/memstick/host/rtsx_pci_ms.c: fix ms card data transfer bug userns: relax the posix_acl_valid() checks arch/sh/kernel/dwarf.c: use rbtree postorder iteration helper instead of solution using repeated rb_erase() fs-ext3-use-rbtree-postorder-iteration-helper-instead-of-opencoding-fix fs/ext3: use rbtree postorder iteration helper instead of opencoding fs/jffs2: use rbtree postorder iteration helper instead of opencoding fs/ext4: use rbtree postorder iteration helper instead of opencoding fs/ubifs: use rbtree postorder iteration helper instead of opencoding net/netfilter/ipset/ip_set_hash_netiface.c: use rbtree postorder iteration instead of opencoding rbtree/test: test rbtree_postorder_for_each_entry_safe() rbtree/test: move rb_node to the middle of the test struct rapidio: add modular rapidio core build into powerpc and mips branches partitions/efi: complete documentation of gpt kernel param purpose kdump: add /sys/kernel/vmcoreinfo ABI documentation kdump: fix exported size of vmcoreinfo note kexec: add sysctl to disable kexec_load fs/exec.c: call arch_pick_mmap_layout() only once ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/Kconfig3
-rw-r--r--drivers/firmware/Kconfig3
-rw-r--r--drivers/firmware/dmi_scan.c20
-rw-r--r--drivers/gpu/drm/gma500/backlight.c4
-rw-r--r--drivers/mailbox/omap-mbox.h2
-rw-r--r--drivers/memstick/host/rtsx_pci_ms.c30
-rw-r--r--drivers/mfd/max8998.c2
-rw-r--r--drivers/mfd/tps65217.c2
-rw-r--r--drivers/rtc/Kconfig13
-rw-r--r--drivers/rtc/Makefile1
-rw-r--r--drivers/rtc/class.c24
-rw-r--r--drivers/rtc/rtc-as3722.c19
-rw-r--r--drivers/rtc/rtc-cmos.c8
-rw-r--r--drivers/rtc/rtc-ds1305.c1
-rw-r--r--drivers/rtc/rtc-ds1742.c10
-rw-r--r--drivers/rtc/rtc-hym8563.c606
-rw-r--r--drivers/rtc/rtc-max8907.c11
-rw-r--r--drivers/rtc/rtc-mxc.c10
-rw-r--r--drivers/rtc/rtc-pcf2127.c5
-rw-r--r--drivers/rtc/rtc-rx8581.c81
-rw-r--r--drivers/rtc/rtc-s5m.c2
-rw-r--r--drivers/rtc/rtc-twl.c38
-rw-r--r--drivers/rtc/rtc-vr41xx.c50
-rw-r--r--drivers/video/aty/aty128fb.c4
-rw-r--r--drivers/video/backlight/hp680_bl.c6
-rw-r--r--drivers/video/backlight/jornada720_bl.c15
-rw-r--r--drivers/video/backlight/jornada720_lcd.c13
-rw-r--r--drivers/video/backlight/kb3886_bl.c2
-rw-r--r--drivers/video/backlight/l4f00242t03.c6
-rw-r--r--drivers/video/backlight/lp855x_bl.c2
-rw-r--r--drivers/video/backlight/lp8788_bl.c6
-rw-r--r--drivers/video/backlight/omap1_bl.c14
-rw-r--r--drivers/video/backlight/ot200_bl.c9
-rw-r--r--drivers/video/backlight/tosa_bl.c7
-rw-r--r--drivers/video/backlight/tosa_lcd.c6
-rw-r--r--drivers/vlynq/vlynq.c3
-rw-r--r--drivers/w1/masters/w1-gpio.c22
-rw-r--r--drivers/w1/w1_int.c12
38 files changed, 852 insertions, 220 deletions
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 86b9f37d102e..9ffa90c6201c 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -368,7 +368,8 @@ config BLK_DEV_RAM
368 For details, read <file:Documentation/blockdev/ramdisk.txt>. 368 For details, read <file:Documentation/blockdev/ramdisk.txt>.
369 369
370 To compile this driver as a module, choose M here: the 370 To compile this driver as a module, choose M here: the
371 module will be called rd. 371 module will be called brd. An alias "rd" has been defined
372 for historical reasons.
372 373
373 Most normal users won't need the RAM disk functionality, and can 374 Most normal users won't need the RAM disk functionality, and can
374 thus say N here. 375 thus say N here.
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 074787281c94..5a29fac951ec 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -108,6 +108,9 @@ config DMI_SYSFS
108 under /sys/firmware/dmi when this option is enabled and 108 under /sys/firmware/dmi when this option is enabled and
109 loaded. 109 loaded.
110 110
111config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
112 bool
113
111config ISCSI_IBFT_FIND 114config ISCSI_IBFT_FIND
112 bool "iSCSI Boot Firmware Table Attributes" 115 bool "iSCSI Boot Firmware Table Attributes"
113 depends on X86 116 depends on X86
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index c7e81ff8f3ef..17afc51f3054 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -116,7 +116,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
116{ 116{
117 u8 *buf; 117 u8 *buf;
118 118
119 buf = dmi_ioremap(dmi_base, dmi_len); 119 buf = dmi_early_remap(dmi_base, dmi_len);
120 if (buf == NULL) 120 if (buf == NULL)
121 return -1; 121 return -1;
122 122
@@ -124,7 +124,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
124 124
125 add_device_randomness(buf, dmi_len); 125 add_device_randomness(buf, dmi_len);
126 126
127 dmi_iounmap(buf, dmi_len); 127 dmi_early_unmap(buf, dmi_len);
128 return 0; 128 return 0;
129} 129}
130 130
@@ -527,18 +527,18 @@ void __init dmi_scan_machine(void)
527 * needed during early boot. This also means we can 527 * needed during early boot. This also means we can
528 * iounmap the space when we're done with it. 528 * iounmap the space when we're done with it.
529 */ 529 */
530 p = dmi_ioremap(efi.smbios, 32); 530 p = dmi_early_remap(efi.smbios, 32);
531 if (p == NULL) 531 if (p == NULL)
532 goto error; 532 goto error;
533 memcpy_fromio(buf, p, 32); 533 memcpy_fromio(buf, p, 32);
534 dmi_iounmap(p, 32); 534 dmi_early_unmap(p, 32);
535 535
536 if (!dmi_present(buf)) { 536 if (!dmi_present(buf)) {
537 dmi_available = 1; 537 dmi_available = 1;
538 goto out; 538 goto out;
539 } 539 }
540 } else { 540 } else if (IS_ENABLED(CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK)) {
541 p = dmi_ioremap(0xF0000, 0x10000); 541 p = dmi_early_remap(0xF0000, 0x10000);
542 if (p == NULL) 542 if (p == NULL)
543 goto error; 543 goto error;
544 544
@@ -554,12 +554,12 @@ void __init dmi_scan_machine(void)
554 memcpy_fromio(buf + 16, q, 16); 554 memcpy_fromio(buf + 16, q, 16);
555 if (!dmi_present(buf)) { 555 if (!dmi_present(buf)) {
556 dmi_available = 1; 556 dmi_available = 1;
557 dmi_iounmap(p, 0x10000); 557 dmi_early_unmap(p, 0x10000);
558 goto out; 558 goto out;
559 } 559 }
560 memcpy(buf, buf + 16, 16); 560 memcpy(buf, buf + 16, 16);
561 } 561 }
562 dmi_iounmap(p, 0x10000); 562 dmi_early_unmap(p, 0x10000);
563 } 563 }
564 error: 564 error:
565 pr_info("DMI not present or invalid.\n"); 565 pr_info("DMI not present or invalid.\n");
@@ -831,13 +831,13 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
831 if (!dmi_available) 831 if (!dmi_available)
832 return -1; 832 return -1;
833 833
834 buf = ioremap(dmi_base, dmi_len); 834 buf = dmi_remap(dmi_base, dmi_len);
835 if (buf == NULL) 835 if (buf == NULL)
836 return -1; 836 return -1;
837 837
838 dmi_table(buf, dmi_len, dmi_num, decode, private_data); 838 dmi_table(buf, dmi_len, dmi_num, decode, private_data);
839 839
840 iounmap(buf); 840 dmi_unmap(buf);
841 return 0; 841 return 0;
842} 842}
843EXPORT_SYMBOL_GPL(dmi_walk); 843EXPORT_SYMBOL_GPL(dmi_walk);
diff --git a/drivers/gpu/drm/gma500/backlight.c b/drivers/gpu/drm/gma500/backlight.c
index 143eba3309c5..ea7dfc59d796 100644
--- a/drivers/gpu/drm/gma500/backlight.c
+++ b/drivers/gpu/drm/gma500/backlight.c
@@ -26,13 +26,13 @@
26#include "intel_bios.h" 26#include "intel_bios.h"
27#include "power.h" 27#include "power.h"
28 28
29#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
29static void do_gma_backlight_set(struct drm_device *dev) 30static void do_gma_backlight_set(struct drm_device *dev)
30{ 31{
31#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
32 struct drm_psb_private *dev_priv = dev->dev_private; 32 struct drm_psb_private *dev_priv = dev->dev_private;
33 backlight_update_status(dev_priv->backlight_device); 33 backlight_update_status(dev_priv->backlight_device);
34#endif
35} 34}
35#endif
36 36
37void gma_backlight_enable(struct drm_device *dev) 37void gma_backlight_enable(struct drm_device *dev)
38{ 38{
diff --git a/drivers/mailbox/omap-mbox.h b/drivers/mailbox/omap-mbox.h
index 6cd38fc68599..86d7518cd13b 100644
--- a/drivers/mailbox/omap-mbox.h
+++ b/drivers/mailbox/omap-mbox.h
@@ -52,7 +52,7 @@ struct omap_mbox_queue {
52 52
53struct omap_mbox { 53struct omap_mbox {
54 const char *name; 54 const char *name;
55 unsigned int irq; 55 int irq;
56 struct omap_mbox_queue *txq, *rxq; 56 struct omap_mbox_queue *txq, *rxq;
57 struct omap_mbox_ops *ops; 57 struct omap_mbox_ops *ops;
58 struct device *dev; 58 struct device *dev;
diff --git a/drivers/memstick/host/rtsx_pci_ms.c b/drivers/memstick/host/rtsx_pci_ms.c
index 25f8f93decb6..2a635b6fdaf7 100644
--- a/drivers/memstick/host/rtsx_pci_ms.c
+++ b/drivers/memstick/host/rtsx_pci_ms.c
@@ -145,6 +145,8 @@ static int ms_transfer_data(struct realtek_pci_ms *host, unsigned char data_dir,
145 unsigned int length = sg->length; 145 unsigned int length = sg->length;
146 u16 sec_cnt = (u16)(length / 512); 146 u16 sec_cnt = (u16)(length / 512);
147 u8 val, trans_mode, dma_dir; 147 u8 val, trans_mode, dma_dir;
148 struct memstick_dev *card = host->msh->card;
149 bool pro_card = card->id.type == MEMSTICK_TYPE_PRO;
148 150
149 dev_dbg(ms_dev(host), "%s: tpc = 0x%02x, data_dir = %s, length = %d\n", 151 dev_dbg(ms_dev(host), "%s: tpc = 0x%02x, data_dir = %s, length = %d\n",
150 __func__, tpc, (data_dir == READ) ? "READ" : "WRITE", 152 __func__, tpc, (data_dir == READ) ? "READ" : "WRITE",
@@ -152,19 +154,21 @@ static int ms_transfer_data(struct realtek_pci_ms *host, unsigned char data_dir,
152 154
153 if (data_dir == READ) { 155 if (data_dir == READ) {
154 dma_dir = DMA_DIR_FROM_CARD; 156 dma_dir = DMA_DIR_FROM_CARD;
155 trans_mode = MS_TM_AUTO_READ; 157 trans_mode = pro_card ? MS_TM_AUTO_READ : MS_TM_NORMAL_READ;
156 } else { 158 } else {
157 dma_dir = DMA_DIR_TO_CARD; 159 dma_dir = DMA_DIR_TO_CARD;
158 trans_mode = MS_TM_AUTO_WRITE; 160 trans_mode = pro_card ? MS_TM_AUTO_WRITE : MS_TM_NORMAL_WRITE;
159 } 161 }
160 162
161 rtsx_pci_init_cmd(pcr); 163 rtsx_pci_init_cmd(pcr);
162 164
163 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TPC, 0xFF, tpc); 165 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TPC, 0xFF, tpc);
164 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_SECTOR_CNT_H, 166 if (pro_card) {
165 0xFF, (u8)(sec_cnt >> 8)); 167 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_SECTOR_CNT_H,
166 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_SECTOR_CNT_L, 168 0xFF, (u8)(sec_cnt >> 8));
167 0xFF, (u8)sec_cnt); 169 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_SECTOR_CNT_L,
170 0xFF, (u8)sec_cnt);
171 }
168 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TRANS_CFG, 0xFF, cfg); 172 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TRANS_CFG, 0xFF, cfg);
169 173
170 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, IRQSTAT0, 174 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, IRQSTAT0,
@@ -192,8 +196,14 @@ static int ms_transfer_data(struct realtek_pci_ms *host, unsigned char data_dir,
192 } 196 }
193 197
194 rtsx_pci_read_register(pcr, MS_TRANS_CFG, &val); 198 rtsx_pci_read_register(pcr, MS_TRANS_CFG, &val);
195 if (val & (MS_INT_CMDNK | MS_INT_ERR | MS_CRC16_ERR | MS_RDY_TIMEOUT)) 199 if (pro_card) {
196 return -EIO; 200 if (val & (MS_INT_CMDNK | MS_INT_ERR |
201 MS_CRC16_ERR | MS_RDY_TIMEOUT))
202 return -EIO;
203 } else {
204 if (val & (MS_CRC16_ERR | MS_RDY_TIMEOUT))
205 return -EIO;
206 }
197 207
198 return 0; 208 return 0;
199} 209}
@@ -462,8 +472,8 @@ static int rtsx_pci_ms_set_param(struct memstick_host *msh,
462 clock = 19000000; 472 clock = 19000000;
463 ssc_depth = RTSX_SSC_DEPTH_500K; 473 ssc_depth = RTSX_SSC_DEPTH_500K;
464 474
465 err = rtsx_pci_write_register(pcr, MS_CFG, 475 err = rtsx_pci_write_register(pcr, MS_CFG, 0x58,
466 0x18, MS_BUS_WIDTH_1); 476 MS_BUS_WIDTH_1 | PUSH_TIME_DEFAULT);
467 if (err < 0) 477 if (err < 0)
468 return err; 478 return err;
469 } else if (value == MEMSTICK_PAR4) { 479 } else if (value == MEMSTICK_PAR4) {
diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
index f47eaa70eae0..612ca404e150 100644
--- a/drivers/mfd/max8998.c
+++ b/drivers/mfd/max8998.c
@@ -175,7 +175,7 @@ static inline int max8998_i2c_get_driver_data(struct i2c_client *i2c,
175 if (IS_ENABLED(CONFIG_OF) && i2c->dev.of_node) { 175 if (IS_ENABLED(CONFIG_OF) && i2c->dev.of_node) {
176 const struct of_device_id *match; 176 const struct of_device_id *match;
177 match = of_match_node(max8998_dt_match, i2c->dev.of_node); 177 match = of_match_node(max8998_dt_match, i2c->dev.of_node);
178 return (int)match->data; 178 return (int)(long)match->data;
179 } 179 }
180 180
181 return (int)id->driver_data; 181 return (int)id->driver_data;
diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
index 6939ae56c2e1..966cf65c5c36 100644
--- a/drivers/mfd/tps65217.c
+++ b/drivers/mfd/tps65217.c
@@ -170,7 +170,7 @@ static int tps65217_probe(struct i2c_client *client,
170 "Failed to find matching dt id\n"); 170 "Failed to find matching dt id\n");
171 return -EINVAL; 171 return -EINVAL;
172 } 172 }
173 chip_id = (unsigned int)match->data; 173 chip_id = (unsigned int)(unsigned long)match->data;
174 status_off = of_property_read_bool(client->dev.of_node, 174 status_off = of_property_read_bool(client->dev.of_node,
175 "ti,pmic-shutdown-controller"); 175 "ti,pmic-shutdown-controller");
176 } 176 }
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index b1328a45b095..db933decc39c 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -212,6 +212,17 @@ config RTC_DRV_DS3232
212 This driver can also be built as a module. If so, the module 212 This driver can also be built as a module. If so, the module
213 will be called rtc-ds3232. 213 will be called rtc-ds3232.
214 214
215config RTC_DRV_HYM8563
216 tristate "Haoyu Microelectronics HYM8563"
217 depends on I2C && OF
218 help
219 Say Y to enable support for the HYM8563 I2C RTC chip. Apart
220 from the usual rtc functions it provides a clock output of
221 up to 32kHz.
222
223 This driver can also be built as a module. If so, the module
224 will be called rtc-hym8563.
225
215config RTC_DRV_LP8788 226config RTC_DRV_LP8788
216 tristate "TI LP8788 RTC driver" 227 tristate "TI LP8788 RTC driver"
217 depends on MFD_LP8788 228 depends on MFD_LP8788
@@ -637,7 +648,7 @@ comment "Platform RTC drivers"
637 648
638config RTC_DRV_CMOS 649config RTC_DRV_CMOS
639 tristate "PC-style 'CMOS'" 650 tristate "PC-style 'CMOS'"
640 depends on X86 || ARM || M32R || ATARI || PPC || MIPS || SPARC64 651 depends on X86 || ARM || M32R || PPC || MIPS || SPARC64
641 default y if X86 652 default y if X86
642 help 653 help
643 Say "yes" here to get direct support for the real time clock 654 Say "yes" here to get direct support for the real time clock
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index c00741a0bf10..b427bf7dd20d 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -55,6 +55,7 @@ obj-$(CONFIG_RTC_DRV_EP93XX) += rtc-ep93xx.o
55obj-$(CONFIG_RTC_DRV_FM3130) += rtc-fm3130.o 55obj-$(CONFIG_RTC_DRV_FM3130) += rtc-fm3130.o
56obj-$(CONFIG_RTC_DRV_GENERIC) += rtc-generic.o 56obj-$(CONFIG_RTC_DRV_GENERIC) += rtc-generic.o
57obj-$(CONFIG_RTC_DRV_HID_SENSOR_TIME) += rtc-hid-sensor-time.o 57obj-$(CONFIG_RTC_DRV_HID_SENSOR_TIME) += rtc-hid-sensor-time.o
58obj-$(CONFIG_RTC_DRV_HYM8563) += rtc-hym8563.o
58obj-$(CONFIG_RTC_DRV_IMXDI) += rtc-imxdi.o 59obj-$(CONFIG_RTC_DRV_IMXDI) += rtc-imxdi.o
59obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o 60obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o
60obj-$(CONFIG_RTC_DRV_ISL12022) += rtc-isl12022.o 61obj-$(CONFIG_RTC_DRV_ISL12022) += rtc-isl12022.o
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 02426812bebc..589351ef75d0 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -14,6 +14,7 @@
14#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 14#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15 15
16#include <linux/module.h> 16#include <linux/module.h>
17#include <linux/of.h>
17#include <linux/rtc.h> 18#include <linux/rtc.h>
18#include <linux/kdev_t.h> 19#include <linux/kdev_t.h>
19#include <linux/idr.h> 20#include <linux/idr.h>
@@ -157,12 +158,27 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
157{ 158{
158 struct rtc_device *rtc; 159 struct rtc_device *rtc;
159 struct rtc_wkalrm alrm; 160 struct rtc_wkalrm alrm;
160 int id, err; 161 int of_id = -1, id = -1, err;
162
163 if (dev->of_node)
164 of_id = of_alias_get_id(dev->of_node, "rtc");
165 else if (dev->parent && dev->parent->of_node)
166 of_id = of_alias_get_id(dev->parent->of_node, "rtc");
167
168 if (of_id >= 0) {
169 id = ida_simple_get(&rtc_ida, of_id, of_id + 1,
170 GFP_KERNEL);
171 if (id < 0)
172 dev_warn(dev, "/aliases ID %d not available\n",
173 of_id);
174 }
161 175
162 id = ida_simple_get(&rtc_ida, 0, 0, GFP_KERNEL);
163 if (id < 0) { 176 if (id < 0) {
164 err = id; 177 id = ida_simple_get(&rtc_ida, 0, 0, GFP_KERNEL);
165 goto exit; 178 if (id < 0) {
179 err = id;
180 goto exit;
181 }
166 } 182 }
167 183
168 rtc = kzalloc(sizeof(struct rtc_device), GFP_KERNEL); 184 rtc = kzalloc(sizeof(struct rtc_device), GFP_KERNEL);
diff --git a/drivers/rtc/rtc-as3722.c b/drivers/rtc/rtc-as3722.c
index 9cfa8170a2d6..4af016985890 100644
--- a/drivers/rtc/rtc-as3722.c
+++ b/drivers/rtc/rtc-as3722.c
@@ -198,7 +198,7 @@ static int as3722_rtc_probe(struct platform_device *pdev)
198 198
199 device_init_wakeup(&pdev->dev, 1); 199 device_init_wakeup(&pdev->dev, 1);
200 200
201 as3722_rtc->rtc = rtc_device_register("as3722", &pdev->dev, 201 as3722_rtc->rtc = devm_rtc_device_register(&pdev->dev, "as3722-rtc",
202 &as3722_rtc_ops, THIS_MODULE); 202 &as3722_rtc_ops, THIS_MODULE);
203 if (IS_ERR(as3722_rtc->rtc)) { 203 if (IS_ERR(as3722_rtc->rtc)) {
204 ret = PTR_ERR(as3722_rtc->rtc); 204 ret = PTR_ERR(as3722_rtc->rtc);
@@ -209,28 +209,16 @@ static int as3722_rtc_probe(struct platform_device *pdev)
209 as3722_rtc->alarm_irq = platform_get_irq(pdev, 0); 209 as3722_rtc->alarm_irq = platform_get_irq(pdev, 0);
210 dev_info(&pdev->dev, "RTC interrupt %d\n", as3722_rtc->alarm_irq); 210 dev_info(&pdev->dev, "RTC interrupt %d\n", as3722_rtc->alarm_irq);
211 211
212 ret = request_threaded_irq(as3722_rtc->alarm_irq, NULL, 212 ret = devm_request_threaded_irq(&pdev->dev, as3722_rtc->alarm_irq, NULL,
213 as3722_alarm_irq, IRQF_ONESHOT | IRQF_EARLY_RESUME, 213 as3722_alarm_irq, IRQF_ONESHOT | IRQF_EARLY_RESUME,
214 "rtc-alarm", as3722_rtc); 214 "rtc-alarm", as3722_rtc);
215 if (ret < 0) { 215 if (ret < 0) {
216 dev_err(&pdev->dev, "Failed to request alarm IRQ %d: %d\n", 216 dev_err(&pdev->dev, "Failed to request alarm IRQ %d: %d\n",
217 as3722_rtc->alarm_irq, ret); 217 as3722_rtc->alarm_irq, ret);
218 goto scrub; 218 return ret;
219 } 219 }
220 disable_irq(as3722_rtc->alarm_irq); 220 disable_irq(as3722_rtc->alarm_irq);
221 return 0; 221 return 0;
222scrub:
223 rtc_device_unregister(as3722_rtc->rtc);
224 return ret;
225}
226
227static int as3722_rtc_remove(struct platform_device *pdev)
228{
229 struct as3722_rtc *as3722_rtc = platform_get_drvdata(pdev);
230
231 free_irq(as3722_rtc->alarm_irq, as3722_rtc);
232 rtc_device_unregister(as3722_rtc->rtc);
233 return 0;
234} 222}
235 223
236#ifdef CONFIG_PM_SLEEP 224#ifdef CONFIG_PM_SLEEP
@@ -260,7 +248,6 @@ static const struct dev_pm_ops as3722_rtc_pm_ops = {
260 248
261static struct platform_driver as3722_rtc_driver = { 249static struct platform_driver as3722_rtc_driver = {
262 .probe = as3722_rtc_probe, 250 .probe = as3722_rtc_probe,
263 .remove = as3722_rtc_remove,
264 .driver = { 251 .driver = {
265 .name = "as3722-rtc", 252 .name = "as3722-rtc",
266 .pm = &as3722_rtc_pm_ops, 253 .pm = &as3722_rtc_pm_ops,
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index a2325bc5e497..cae212f30d65 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -756,11 +756,9 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
756 irq_handler_t rtc_cmos_int_handler; 756 irq_handler_t rtc_cmos_int_handler;
757 757
758 if (is_hpet_enabled()) { 758 if (is_hpet_enabled()) {
759 int err;
760
761 rtc_cmos_int_handler = hpet_rtc_interrupt; 759 rtc_cmos_int_handler = hpet_rtc_interrupt;
762 err = hpet_register_irq_handler(cmos_interrupt); 760 retval = hpet_register_irq_handler(cmos_interrupt);
763 if (err != 0) { 761 if (retval) {
764 dev_warn(dev, "hpet_register_irq_handler " 762 dev_warn(dev, "hpet_register_irq_handler "
765 " failed in rtc_init()."); 763 " failed in rtc_init().");
766 goto cleanup1; 764 goto cleanup1;
@@ -1175,7 +1173,7 @@ static struct platform_driver cmos_platform_driver = {
1175 .remove = __exit_p(cmos_platform_remove), 1173 .remove = __exit_p(cmos_platform_remove),
1176 .shutdown = cmos_platform_shutdown, 1174 .shutdown = cmos_platform_shutdown,
1177 .driver = { 1175 .driver = {
1178 .name = (char *) driver_name, 1176 .name = driver_name,
1179#ifdef CONFIG_PM 1177#ifdef CONFIG_PM
1180 .pm = &cmos_pm_ops, 1178 .pm = &cmos_pm_ops,
1181#endif 1179#endif
diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c
index 80f323731ee2..2dd586a19b59 100644
--- a/drivers/rtc/rtc-ds1305.c
+++ b/drivers/rtc/rtc-ds1305.c
@@ -787,7 +787,6 @@ static int ds1305_remove(struct spi_device *spi)
787 cancel_work_sync(&ds1305->work); 787 cancel_work_sync(&ds1305->work);
788 } 788 }
789 789
790 spi_set_drvdata(spi, NULL);
791 return 0; 790 return 0;
792} 791}
793 792
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index 17b73fdc3b6e..5a1f3b2a8f1e 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -13,12 +13,13 @@
13 */ 13 */
14 14
15#include <linux/bcd.h> 15#include <linux/bcd.h>
16#include <linux/init.h>
17#include <linux/kernel.h> 16#include <linux/kernel.h>
18#include <linux/gfp.h> 17#include <linux/gfp.h>
19#include <linux/delay.h> 18#include <linux/delay.h>
20#include <linux/jiffies.h> 19#include <linux/jiffies.h>
21#include <linux/rtc.h> 20#include <linux/rtc.h>
21#include <linux/of.h>
22#include <linux/of_device.h>
22#include <linux/platform_device.h> 23#include <linux/platform_device.h>
23#include <linux/io.h> 24#include <linux/io.h>
24#include <linux/module.h> 25#include <linux/module.h>
@@ -215,12 +216,19 @@ static int ds1742_rtc_remove(struct platform_device *pdev)
215 return 0; 216 return 0;
216} 217}
217 218
219static struct of_device_id __maybe_unused ds1742_rtc_of_match[] = {
220 { .compatible = "maxim,ds1742", },
221 { }
222};
223MODULE_DEVICE_TABLE(of, ds1742_rtc_of_match);
224
218static struct platform_driver ds1742_rtc_driver = { 225static struct platform_driver ds1742_rtc_driver = {
219 .probe = ds1742_rtc_probe, 226 .probe = ds1742_rtc_probe,
220 .remove = ds1742_rtc_remove, 227 .remove = ds1742_rtc_remove,
221 .driver = { 228 .driver = {
222 .name = "rtc-ds1742", 229 .name = "rtc-ds1742",
223 .owner = THIS_MODULE, 230 .owner = THIS_MODULE,
231 .of_match_table = ds1742_rtc_of_match,
224 }, 232 },
225}; 233};
226 234
diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c
new file mode 100644
index 000000000000..bd628a6f981d
--- /dev/null
+++ b/drivers/rtc/rtc-hym8563.c
@@ -0,0 +1,606 @@
1/*
2 * Haoyu HYM8563 RTC driver
3 *
4 * Copyright (C) 2013 MundoReader S.L.
5 * Author: Heiko Stuebner <heiko@sntech.de>
6 *
7 * based on rtc-HYM8563
8 * Copyright (C) 2010 ROCKCHIP, Inc.
9 *
10 * This software is licensed under the terms of the GNU General Public
11 * License version 2, as published by the Free Software Foundation, and
12 * may be copied, distributed, and modified under those terms.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
19
20#include <linux/module.h>
21#include <linux/clk-provider.h>
22#include <linux/i2c.h>
23#include <linux/bcd.h>
24#include <linux/rtc.h>
25
26#define HYM8563_CTL1 0x00
27#define HYM8563_CTL1_TEST BIT(7)
28#define HYM8563_CTL1_STOP BIT(5)
29#define HYM8563_CTL1_TESTC BIT(3)
30
31#define HYM8563_CTL2 0x01
32#define HYM8563_CTL2_TI_TP BIT(4)
33#define HYM8563_CTL2_AF BIT(3)
34#define HYM8563_CTL2_TF BIT(2)
35#define HYM8563_CTL2_AIE BIT(1)
36#define HYM8563_CTL2_TIE BIT(0)
37
38#define HYM8563_SEC 0x02
39#define HYM8563_SEC_VL BIT(7)
40#define HYM8563_SEC_MASK 0x7f
41
42#define HYM8563_MIN 0x03
43#define HYM8563_MIN_MASK 0x7f
44
45#define HYM8563_HOUR 0x04
46#define HYM8563_HOUR_MASK 0x3f
47
48#define HYM8563_DAY 0x05
49#define HYM8563_DAY_MASK 0x3f
50
51#define HYM8563_WEEKDAY 0x06
52#define HYM8563_WEEKDAY_MASK 0x07
53
54#define HYM8563_MONTH 0x07
55#define HYM8563_MONTH_CENTURY BIT(7)
56#define HYM8563_MONTH_MASK 0x1f
57
58#define HYM8563_YEAR 0x08
59
60#define HYM8563_ALM_MIN 0x09
61#define HYM8563_ALM_HOUR 0x0a
62#define HYM8563_ALM_DAY 0x0b
63#define HYM8563_ALM_WEEK 0x0c
64
65/* Each alarm check can be disabled by setting this bit in the register */
66#define HYM8563_ALM_BIT_DISABLE BIT(7)
67
68#define HYM8563_CLKOUT 0x0d
69#define HYM8563_CLKOUT_DISABLE BIT(7)
70#define HYM8563_CLKOUT_32768 0
71#define HYM8563_CLKOUT_1024 1
72#define HYM8563_CLKOUT_32 2
73#define HYM8563_CLKOUT_1 3
74#define HYM8563_CLKOUT_MASK 3
75
76#define HYM8563_TMR_CTL 0x0e
77#define HYM8563_TMR_CTL_ENABLE BIT(7)
78#define HYM8563_TMR_CTL_4096 0
79#define HYM8563_TMR_CTL_64 1
80#define HYM8563_TMR_CTL_1 2
81#define HYM8563_TMR_CTL_1_60 3
82#define HYM8563_TMR_CTL_MASK 3
83
84#define HYM8563_TMR_CNT 0x0f
85
86struct hym8563 {
87 struct i2c_client *client;
88 struct rtc_device *rtc;
89 bool valid;
90#ifdef CONFIG_COMMON_CLK
91 struct clk_hw clkout_hw;
92#endif
93};
94
95/*
96 * RTC handling
97 */
98
99static int hym8563_rtc_read_time(struct device *dev, struct rtc_time *tm)
100{
101 struct i2c_client *client = to_i2c_client(dev);
102 struct hym8563 *hym8563 = i2c_get_clientdata(client);
103 u8 buf[7];
104 int ret;
105
106 if (!hym8563->valid) {
107 dev_warn(&client->dev, "no valid clock/calendar values available\n");
108 return -EPERM;
109 }
110
111 ret = i2c_smbus_read_i2c_block_data(client, HYM8563_SEC, 7, buf);
112
113 tm->tm_sec = bcd2bin(buf[0] & HYM8563_SEC_MASK);
114 tm->tm_min = bcd2bin(buf[1] & HYM8563_MIN_MASK);
115 tm->tm_hour = bcd2bin(buf[2] & HYM8563_HOUR_MASK);
116 tm->tm_mday = bcd2bin(buf[3] & HYM8563_DAY_MASK);
117 tm->tm_wday = bcd2bin(buf[4] & HYM8563_WEEKDAY_MASK); /* 0 = Sun */
118 tm->tm_mon = bcd2bin(buf[5] & HYM8563_MONTH_MASK) - 1; /* 0 = Jan */
119 tm->tm_year = bcd2bin(buf[6]) + 100;
120
121 return 0;
122}
123
124static int hym8563_rtc_set_time(struct device *dev, struct rtc_time *tm)
125{
126 struct i2c_client *client = to_i2c_client(dev);
127 struct hym8563 *hym8563 = i2c_get_clientdata(client);
128 u8 buf[7];
129 int ret;
130
131 /* Years >= 2100 are to far in the future, 19XX is to early */
132 if (tm->tm_year < 100 || tm->tm_year >= 200)
133 return -EINVAL;
134
135 buf[0] = bin2bcd(tm->tm_sec);
136 buf[1] = bin2bcd(tm->tm_min);
137 buf[2] = bin2bcd(tm->tm_hour);
138 buf[3] = bin2bcd(tm->tm_mday);
139 buf[4] = bin2bcd(tm->tm_wday);
140 buf[5] = bin2bcd(tm->tm_mon + 1);
141
142 /*
143 * While the HYM8563 has a century flag in the month register,
144 * it does not seem to carry it over a subsequent write/read.
145 * So we'll limit ourself to 100 years, starting at 2000 for now.
146 */
147 buf[6] = tm->tm_year - 100;
148
149 /*
150 * CTL1 only contains TEST-mode bits apart from stop,
151 * so no need to read the value first
152 */
153 ret = i2c_smbus_write_byte_data(client, HYM8563_CTL1,
154 HYM8563_CTL1_STOP);
155 if (ret < 0)
156 return ret;
157
158 ret = i2c_smbus_write_i2c_block_data(client, HYM8563_SEC, 7, buf);
159 if (ret < 0)
160 return ret;
161
162 ret = i2c_smbus_write_byte_data(client, HYM8563_CTL1, 0);
163 if (ret < 0)
164 return ret;
165
166 hym8563->valid = true;
167
168 return 0;
169}
170
171static int hym8563_rtc_alarm_irq_enable(struct device *dev,
172 unsigned int enabled)
173{
174 struct i2c_client *client = to_i2c_client(dev);
175 int data;
176
177 data = i2c_smbus_read_byte_data(client, HYM8563_CTL2);
178 if (data < 0)
179 return data;
180
181 if (enabled)
182 data |= HYM8563_CTL2_AIE;
183 else
184 data &= ~HYM8563_CTL2_AIE;
185
186 return i2c_smbus_write_byte_data(client, HYM8563_CTL2, data);
187};
188
189static int hym8563_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
190{
191 struct i2c_client *client = to_i2c_client(dev);
192 struct rtc_time *alm_tm = &alm->time;
193 u8 buf[4];
194 int ret;
195
196 ret = i2c_smbus_read_i2c_block_data(client, HYM8563_ALM_MIN, 4, buf);
197 if (ret < 0)
198 return ret;
199
200 /* The alarm only has a minute accuracy */
201 alm_tm->tm_sec = -1;
202
203 alm_tm->tm_min = (buf[0] & HYM8563_ALM_BIT_DISABLE) ?
204 -1 :
205 bcd2bin(buf[0] & HYM8563_MIN_MASK);
206 alm_tm->tm_hour = (buf[1] & HYM8563_ALM_BIT_DISABLE) ?
207 -1 :
208 bcd2bin(buf[1] & HYM8563_HOUR_MASK);
209 alm_tm->tm_mday = (buf[2] & HYM8563_ALM_BIT_DISABLE) ?
210 -1 :
211 bcd2bin(buf[2] & HYM8563_DAY_MASK);
212 alm_tm->tm_wday = (buf[3] & HYM8563_ALM_BIT_DISABLE) ?
213 -1 :
214 bcd2bin(buf[3] & HYM8563_WEEKDAY_MASK);
215
216 alm_tm->tm_mon = -1;
217 alm_tm->tm_year = -1;
218
219 ret = i2c_smbus_read_byte_data(client, HYM8563_CTL2);
220 if (ret < 0)
221 return ret;
222
223 if (ret & HYM8563_CTL2_AIE)
224 alm->enabled = 1;
225
226 return 0;
227}
228
229static int hym8563_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
230{
231 struct i2c_client *client = to_i2c_client(dev);
232 struct rtc_time *alm_tm = &alm->time;
233 u8 buf[4];
234 int ret;
235
236 /*
237 * The alarm has no seconds so deal with it
238 */
239 if (alm_tm->tm_sec) {
240 alm_tm->tm_sec = 0;
241 alm_tm->tm_min++;
242 if (alm_tm->tm_min >= 60) {
243 alm_tm->tm_min = 0;
244 alm_tm->tm_hour++;
245 if (alm_tm->tm_hour >= 24) {
246 alm_tm->tm_hour = 0;
247 alm_tm->tm_mday++;
248 if (alm_tm->tm_mday > 31)
249 alm_tm->tm_mday = 0;
250 }
251 }
252 }
253
254 ret = i2c_smbus_read_byte_data(client, HYM8563_CTL2);
255 if (ret < 0)
256 return ret;
257
258 ret &= ~HYM8563_CTL2_AIE;
259
260 ret = i2c_smbus_write_byte_data(client, HYM8563_CTL2, ret);
261 if (ret < 0)
262 return ret;
263
264 buf[0] = (alm_tm->tm_min < 60 && alm_tm->tm_min >= 0) ?
265 bin2bcd(alm_tm->tm_min) : HYM8563_ALM_BIT_DISABLE;
266
267 buf[1] = (alm_tm->tm_hour < 24 && alm_tm->tm_hour >= 0) ?
268 bin2bcd(alm_tm->tm_hour) : HYM8563_ALM_BIT_DISABLE;
269
270 buf[2] = (alm_tm->tm_mday <= 31 && alm_tm->tm_mday >= 1) ?
271 bin2bcd(alm_tm->tm_mday) : HYM8563_ALM_BIT_DISABLE;
272
273 buf[3] = (alm_tm->tm_wday < 7 && alm_tm->tm_wday >= 0) ?
274 bin2bcd(alm_tm->tm_wday) : HYM8563_ALM_BIT_DISABLE;
275
276 ret = i2c_smbus_write_i2c_block_data(client, HYM8563_ALM_MIN, 4, buf);
277 if (ret < 0)
278 return ret;
279
280 return hym8563_rtc_alarm_irq_enable(dev, alm->enabled);
281}
282
283static const struct rtc_class_ops hym8563_rtc_ops = {
284 .read_time = hym8563_rtc_read_time,
285 .set_time = hym8563_rtc_set_time,
286 .alarm_irq_enable = hym8563_rtc_alarm_irq_enable,
287 .read_alarm = hym8563_rtc_read_alarm,
288 .set_alarm = hym8563_rtc_set_alarm,
289};
290
291/*
292 * Handling of the clkout
293 */
294
295#ifdef CONFIG_COMMON_CLK
296#define clkout_hw_to_hym8563(_hw) container_of(_hw, struct hym8563, clkout_hw)
297
298static int clkout_rates[] = {
299 32768,
300 1024,
301 32,
302 1,
303};
304
305static unsigned long hym8563_clkout_recalc_rate(struct clk_hw *hw,
306 unsigned long parent_rate)
307{
308 struct hym8563 *hym8563 = clkout_hw_to_hym8563(hw);
309 struct i2c_client *client = hym8563->client;
310 int ret = i2c_smbus_read_byte_data(client, HYM8563_CLKOUT);
311
312 if (ret < 0 || ret & HYM8563_CLKOUT_DISABLE)
313 return 0;
314
315 ret &= HYM8563_CLKOUT_MASK;
316 return clkout_rates[ret];
317}
318
319static long hym8563_clkout_round_rate(struct clk_hw *hw, unsigned long rate,
320 unsigned long *prate)
321{
322 int i;
323
324 for (i = 0; i < ARRAY_SIZE(clkout_rates); i++)
325 if (clkout_rates[i] <= rate)
326 return clkout_rates[i];
327
328 return 0;
329}
330
331static int hym8563_clkout_set_rate(struct clk_hw *hw, unsigned long rate,
332 unsigned long parent_rate)
333{
334 struct hym8563 *hym8563 = clkout_hw_to_hym8563(hw);
335 struct i2c_client *client = hym8563->client;
336 int ret = i2c_smbus_read_byte_data(client, HYM8563_CLKOUT);
337 int i;
338
339 if (ret < 0)
340 return ret;
341
342 for (i = 0; i < ARRAY_SIZE(clkout_rates); i++)
343 if (clkout_rates[i] == rate) {
344 ret &= ~HYM8563_CLKOUT_MASK;
345 ret |= i;
346 return i2c_smbus_write_byte_data(client,
347 HYM8563_CLKOUT, ret);
348 }
349
350 return -EINVAL;
351}
352
353static int hym8563_clkout_control(struct clk_hw *hw, bool enable)
354{
355 struct hym8563 *hym8563 = clkout_hw_to_hym8563(hw);
356 struct i2c_client *client = hym8563->client;
357 int ret = i2c_smbus_read_byte_data(client, HYM8563_CLKOUT);
358
359 if (ret < 0)
360 return ret;
361
362 if (enable)
363 ret &= ~HYM8563_CLKOUT_DISABLE;
364 else
365 ret |= HYM8563_CLKOUT_DISABLE;
366
367 return i2c_smbus_write_byte_data(client, HYM8563_CLKOUT, ret);
368}
369
370static int hym8563_clkout_prepare(struct clk_hw *hw)
371{
372 return hym8563_clkout_control(hw, 1);
373}
374
375static void hym8563_clkout_unprepare(struct clk_hw *hw)
376{
377 hym8563_clkout_control(hw, 0);
378}
379
380static int hym8563_clkout_is_prepared(struct clk_hw *hw)
381{
382 struct hym8563 *hym8563 = clkout_hw_to_hym8563(hw);
383 struct i2c_client *client = hym8563->client;
384 int ret = i2c_smbus_read_byte_data(client, HYM8563_CLKOUT);
385
386 if (ret < 0)
387 return ret;
388
389 return !(ret & HYM8563_CLKOUT_DISABLE);
390}
391
392static const struct clk_ops hym8563_clkout_ops = {
393 .prepare = hym8563_clkout_prepare,
394 .unprepare = hym8563_clkout_unprepare,
395 .is_prepared = hym8563_clkout_is_prepared,
396 .recalc_rate = hym8563_clkout_recalc_rate,
397 .round_rate = hym8563_clkout_round_rate,
398 .set_rate = hym8563_clkout_set_rate,
399};
400
401static struct clk *hym8563_clkout_register_clk(struct hym8563 *hym8563)
402{
403 struct i2c_client *client = hym8563->client;
404 struct device_node *node = client->dev.of_node;
405 struct clk *clk;
406 struct clk_init_data init;
407 int ret;
408
409 ret = i2c_smbus_write_byte_data(client, HYM8563_CLKOUT,
410 HYM8563_CLKOUT_DISABLE);
411 if (ret < 0)
412 return ERR_PTR(ret);
413
414 init.name = "hym8563-clkout";
415 init.ops = &hym8563_clkout_ops;
416 init.flags = CLK_IS_ROOT;
417 init.parent_names = NULL;
418 init.num_parents = 0;
419 hym8563->clkout_hw.init = &init;
420
421 /* register the clock */
422 clk = clk_register(&client->dev, &hym8563->clkout_hw);
423
424 if (!IS_ERR(clk))
425 of_clk_add_provider(node, of_clk_src_simple_get, clk);
426
427 return clk;
428}
429#endif
430
431/*
432 * The alarm interrupt is implemented as a level-low interrupt in the
433 * hym8563, while the timer interrupt uses a falling edge.
434 * We don't use the timer at all, so the interrupt is requested to
435 * use the level-low trigger.
436 */
437static irqreturn_t hym8563_irq(int irq, void *dev_id)
438{
439 struct hym8563 *hym8563 = (struct hym8563 *)dev_id;
440 struct i2c_client *client = hym8563->client;
441 struct mutex *lock = &hym8563->rtc->ops_lock;
442 int data, ret;
443
444 mutex_lock(lock);
445
446 /* Clear the alarm flag */
447
448 data = i2c_smbus_read_byte_data(client, HYM8563_CTL2);
449 if (data < 0) {
450 dev_err(&client->dev, "%s: error reading i2c data %d\n",
451 __func__, data);
452 goto out;
453 }
454
455 data &= ~HYM8563_CTL2_AF;
456
457 ret = i2c_smbus_write_byte_data(client, HYM8563_CTL2, data);
458 if (ret < 0) {
459 dev_err(&client->dev, "%s: error writing i2c data %d\n",
460 __func__, ret);
461 }
462
463out:
464 mutex_unlock(lock);
465 return IRQ_HANDLED;
466}
467
468static int hym8563_init_device(struct i2c_client *client)
469{
470 int ret;
471
472 /* Clear stop flag if present */
473 ret = i2c_smbus_write_byte_data(client, HYM8563_CTL1, 0);
474 if (ret < 0)
475 return ret;
476
477 ret = i2c_smbus_read_byte_data(client, HYM8563_CTL2);
478 if (ret < 0)
479 return ret;
480
481 /* Disable alarm and timer interrupts */
482 ret &= ~HYM8563_CTL2_AIE;
483 ret &= ~HYM8563_CTL2_TIE;
484
485 /* Clear any pending alarm and timer flags */
486 if (ret & HYM8563_CTL2_AF)
487 ret &= ~HYM8563_CTL2_AF;
488
489 if (ret & HYM8563_CTL2_TF)
490 ret &= ~HYM8563_CTL2_TF;
491
492 ret &= ~HYM8563_CTL2_TI_TP;
493
494 return i2c_smbus_write_byte_data(client, HYM8563_CTL2, ret);
495}
496
497#ifdef CONFIG_PM_SLEEP
498static int hym8563_suspend(struct device *dev)
499{
500 struct i2c_client *client = to_i2c_client(dev);
501 int ret;
502
503 if (device_may_wakeup(dev)) {
504 ret = enable_irq_wake(client->irq);
505 if (ret) {
506 dev_err(dev, "enable_irq_wake failed, %d\n", ret);
507 return ret;
508 }
509 }
510
511 return 0;
512}
513
514static int hym8563_resume(struct device *dev)
515{
516 struct i2c_client *client = to_i2c_client(dev);
517
518 if (device_may_wakeup(dev))
519 disable_irq_wake(client->irq);
520
521 return 0;
522}
523#endif
524
525static SIMPLE_DEV_PM_OPS(hym8563_pm_ops, hym8563_suspend, hym8563_resume);
526
527static int hym8563_probe(struct i2c_client *client,
528 const struct i2c_device_id *id)
529{
530 struct hym8563 *hym8563;
531 int ret;
532
533 hym8563 = devm_kzalloc(&client->dev, sizeof(*hym8563), GFP_KERNEL);
534 if (!hym8563)
535 return -ENOMEM;
536
537 hym8563->client = client;
538 i2c_set_clientdata(client, hym8563);
539
540 device_set_wakeup_capable(&client->dev, true);
541
542 ret = hym8563_init_device(client);
543 if (ret) {
544 dev_err(&client->dev, "could not init device, %d\n", ret);
545 return ret;
546 }
547
548 ret = devm_request_threaded_irq(&client->dev, client->irq,
549 NULL, hym8563_irq,
550 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
551 client->name, hym8563);
552 if (ret < 0) {
553 dev_err(&client->dev, "irq %d request failed, %d\n",
554 client->irq, ret);
555 return ret;
556 }
557
558 /* check state of calendar information */
559 ret = i2c_smbus_read_byte_data(client, HYM8563_SEC);
560 if (ret < 0)
561 return ret;
562
563 hym8563->valid = !(ret & HYM8563_SEC_VL);
564 dev_dbg(&client->dev, "rtc information is %s\n",
565 hym8563->valid ? "valid" : "invalid");
566
567 hym8563->rtc = devm_rtc_device_register(&client->dev, client->name,
568 &hym8563_rtc_ops, THIS_MODULE);
569 if (IS_ERR(hym8563->rtc))
570 return PTR_ERR(hym8563->rtc);
571
572#ifdef CONFIG_COMMON_CLK
573 hym8563_clkout_register_clk(hym8563);
574#endif
575
576 return 0;
577}
578
579static const struct i2c_device_id hym8563_id[] = {
580 { "hym8563", 0 },
581 {},
582};
583MODULE_DEVICE_TABLE(i2c, hym8563_id);
584
585static struct of_device_id hym8563_dt_idtable[] = {
586 { .compatible = "haoyu,hym8563" },
587 {},
588};
589MODULE_DEVICE_TABLE(of, hym8563_dt_idtable);
590
591static struct i2c_driver hym8563_driver = {
592 .driver = {
593 .name = "rtc-hym8563",
594 .owner = THIS_MODULE,
595 .pm = &hym8563_pm_ops,
596 .of_match_table = hym8563_dt_idtable,
597 },
598 .probe = hym8563_probe,
599 .id_table = hym8563_id,
600};
601
602module_i2c_driver(hym8563_driver);
603
604MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
605MODULE_DESCRIPTION("HYM8563 RTC driver");
606MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-max8907.c b/drivers/rtc/rtc-max8907.c
index 8e45b3c4aa2f..3032178bd9e6 100644
--- a/drivers/rtc/rtc-max8907.c
+++ b/drivers/rtc/rtc-max8907.c
@@ -51,7 +51,7 @@ static irqreturn_t max8907_irq_handler(int irq, void *data)
51{ 51{
52 struct max8907_rtc *rtc = data; 52 struct max8907_rtc *rtc = data;
53 53
54 regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0x7f, 0); 54 regmap_write(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0);
55 55
56 rtc_update_irq(rtc->rtc_dev, 1, RTC_IRQF | RTC_AF); 56 rtc_update_irq(rtc->rtc_dev, 1, RTC_IRQF | RTC_AF);
57 57
@@ -64,7 +64,7 @@ static void regs_to_tm(u8 *regs, struct rtc_time *tm)
64 bcd2bin(regs[RTC_YEAR1]) - 1900; 64 bcd2bin(regs[RTC_YEAR1]) - 1900;
65 tm->tm_mon = bcd2bin(regs[RTC_MONTH] & 0x1f) - 1; 65 tm->tm_mon = bcd2bin(regs[RTC_MONTH] & 0x1f) - 1;
66 tm->tm_mday = bcd2bin(regs[RTC_DATE] & 0x3f); 66 tm->tm_mday = bcd2bin(regs[RTC_DATE] & 0x3f);
67 tm->tm_wday = (regs[RTC_WEEKDAY] & 0x07) - 1; 67 tm->tm_wday = (regs[RTC_WEEKDAY] & 0x07);
68 if (regs[RTC_HOUR] & HOUR_12) { 68 if (regs[RTC_HOUR] & HOUR_12) {
69 tm->tm_hour = bcd2bin(regs[RTC_HOUR] & 0x01f); 69 tm->tm_hour = bcd2bin(regs[RTC_HOUR] & 0x01f);
70 if (tm->tm_hour == 12) 70 if (tm->tm_hour == 12)
@@ -88,7 +88,7 @@ static void tm_to_regs(struct rtc_time *tm, u8 *regs)
88 regs[RTC_YEAR1] = bin2bcd(low); 88 regs[RTC_YEAR1] = bin2bcd(low);
89 regs[RTC_MONTH] = bin2bcd(tm->tm_mon + 1); 89 regs[RTC_MONTH] = bin2bcd(tm->tm_mon + 1);
90 regs[RTC_DATE] = bin2bcd(tm->tm_mday); 90 regs[RTC_DATE] = bin2bcd(tm->tm_mday);
91 regs[RTC_WEEKDAY] = tm->tm_wday + 1; 91 regs[RTC_WEEKDAY] = tm->tm_wday;
92 regs[RTC_HOUR] = bin2bcd(tm->tm_hour); 92 regs[RTC_HOUR] = bin2bcd(tm->tm_hour);
93 regs[RTC_MIN] = bin2bcd(tm->tm_min); 93 regs[RTC_MIN] = bin2bcd(tm->tm_min);
94 regs[RTC_SEC] = bin2bcd(tm->tm_sec); 94 regs[RTC_SEC] = bin2bcd(tm->tm_sec);
@@ -153,7 +153,7 @@ static int max8907_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
153 tm_to_regs(&alrm->time, regs); 153 tm_to_regs(&alrm->time, regs);
154 154
155 /* Disable alarm while we update the target time */ 155 /* Disable alarm while we update the target time */
156 ret = regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0x7f, 0); 156 ret = regmap_write(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0);
157 if (ret < 0) 157 if (ret < 0)
158 return ret; 158 return ret;
159 159
@@ -163,8 +163,7 @@ static int max8907_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
163 return ret; 163 return ret;
164 164
165 if (alrm->enabled) 165 if (alrm->enabled)
166 ret = regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 166 ret = regmap_write(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0x77);
167 0x7f, 0x7f);
168 167
169 return ret; 168 return ret;
170} 169}
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 50c572645546..419874fefa4b 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -391,11 +391,13 @@ static int mxc_rtc_probe(struct platform_device *pdev)
391 pdata->clk = devm_clk_get(&pdev->dev, NULL); 391 pdata->clk = devm_clk_get(&pdev->dev, NULL);
392 if (IS_ERR(pdata->clk)) { 392 if (IS_ERR(pdata->clk)) {
393 dev_err(&pdev->dev, "unable to get clock!\n"); 393 dev_err(&pdev->dev, "unable to get clock!\n");
394 ret = PTR_ERR(pdata->clk); 394 return PTR_ERR(pdata->clk);
395 goto exit_free_pdata;
396 } 395 }
397 396
398 clk_prepare_enable(pdata->clk); 397 ret = clk_prepare_enable(pdata->clk);
398 if (ret)
399 return ret;
400
399 rate = clk_get_rate(pdata->clk); 401 rate = clk_get_rate(pdata->clk);
400 402
401 if (rate == 32768) 403 if (rate == 32768)
@@ -447,8 +449,6 @@ static int mxc_rtc_probe(struct platform_device *pdev)
447exit_put_clk: 449exit_put_clk:
448 clk_disable_unprepare(pdata->clk); 450 clk_disable_unprepare(pdata->clk);
449 451
450exit_free_pdata:
451
452 return ret; 452 return ret;
453} 453}
454 454
diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c
index 1ee514a3972c..9bd842e97749 100644
--- a/drivers/rtc/rtc-pcf2127.c
+++ b/drivers/rtc/rtc-pcf2127.c
@@ -197,10 +197,7 @@ static int pcf2127_probe(struct i2c_client *client,
197 pcf2127_driver.driver.name, 197 pcf2127_driver.driver.name,
198 &pcf2127_rtc_ops, THIS_MODULE); 198 &pcf2127_rtc_ops, THIS_MODULE);
199 199
200 if (IS_ERR(pcf2127->rtc)) 200 return PTR_ERR_OR_ZERO(pcf2127->rtc);
201 return PTR_ERR(pcf2127->rtc);
202
203 return 0;
204} 201}
205 202
206static const struct i2c_device_id pcf2127_id[] = { 203static const struct i2c_device_id pcf2127_id[] = {
diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c
index 00b0eb7fe166..de8d9c427782 100644
--- a/drivers/rtc/rtc-rx8581.c
+++ b/drivers/rtc/rtc-rx8581.c
@@ -52,8 +52,45 @@
52#define RX8581_CTRL_STOP 0x02 /* STOP bit */ 52#define RX8581_CTRL_STOP 0x02 /* STOP bit */
53#define RX8581_CTRL_RESET 0x01 /* RESET bit */ 53#define RX8581_CTRL_RESET 0x01 /* RESET bit */
54 54
55struct rx8581 {
56 struct i2c_client *client;
57 struct rtc_device *rtc;
58 s32 (*read_block_data)(const struct i2c_client *client, u8 command,
59 u8 length, u8 *values);
60 s32 (*write_block_data)(const struct i2c_client *client, u8 command,
61 u8 length, const u8 *values);
62};
63
55static struct i2c_driver rx8581_driver; 64static struct i2c_driver rx8581_driver;
56 65
66static int rx8581_read_block_data(const struct i2c_client *client, u8 command,
67 u8 length, u8 *values)
68{
69 s32 i, data;
70
71 for (i = 0; i < length; i++) {
72 data = i2c_smbus_read_byte_data(client, command + i);
73 if (data < 0)
74 return data;
75 values[i] = data;
76 }
77 return i;
78}
79
80static int rx8581_write_block_data(const struct i2c_client *client, u8 command,
81 u8 length, const u8 *values)
82{
83 s32 i, ret;
84
85 for (i = 0; i < length; i++) {
86 ret = i2c_smbus_write_byte_data(client, command + i,
87 values[i]);
88 if (ret < 0)
89 return ret;
90 }
91 return length;
92}
93
57/* 94/*
58 * In the routines that deal directly with the rx8581 hardware, we use 95 * In the routines that deal directly with the rx8581 hardware, we use
59 * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch. 96 * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch.
@@ -62,6 +99,7 @@ static int rx8581_get_datetime(struct i2c_client *client, struct rtc_time *tm)
62{ 99{
63 unsigned char date[7]; 100 unsigned char date[7];
64 int data, err; 101 int data, err;
102 struct rx8581 *rx8581 = i2c_get_clientdata(client);
65 103
66 /* First we ensure that the "update flag" is not set, we read the 104 /* First we ensure that the "update flag" is not set, we read the
67 * time and date then re-read the "update flag". If the update flag 105 * time and date then re-read the "update flag". If the update flag
@@ -80,14 +118,13 @@ static int rx8581_get_datetime(struct i2c_client *client, struct rtc_time *tm)
80 err = i2c_smbus_write_byte_data(client, 118 err = i2c_smbus_write_byte_data(client,
81 RX8581_REG_FLAG, (data & ~RX8581_FLAG_UF)); 119 RX8581_REG_FLAG, (data & ~RX8581_FLAG_UF));
82 if (err != 0) { 120 if (err != 0) {
83 dev_err(&client->dev, "Unable to write device " 121 dev_err(&client->dev, "Unable to write device flags\n");
84 "flags\n");
85 return -EIO; 122 return -EIO;
86 } 123 }
87 } 124 }
88 125
89 /* Now read time and date */ 126 /* Now read time and date */
90 err = i2c_smbus_read_i2c_block_data(client, RX8581_REG_SC, 127 err = rx8581->read_block_data(client, RX8581_REG_SC,
91 7, date); 128 7, date);
92 if (err < 0) { 129 if (err < 0) {
93 dev_err(&client->dev, "Unable to read date\n"); 130 dev_err(&client->dev, "Unable to read date\n");
@@ -140,6 +177,7 @@ static int rx8581_set_datetime(struct i2c_client *client, struct rtc_time *tm)
140{ 177{
141 int data, err; 178 int data, err;
142 unsigned char buf[7]; 179 unsigned char buf[7];
180 struct rx8581 *rx8581 = i2c_get_clientdata(client);
143 181
144 dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, " 182 dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "
145 "mday=%d, mon=%d, year=%d, wday=%d\n", 183 "mday=%d, mon=%d, year=%d, wday=%d\n",
@@ -176,7 +214,7 @@ static int rx8581_set_datetime(struct i2c_client *client, struct rtc_time *tm)
176 } 214 }
177 215
178 /* write register's data */ 216 /* write register's data */
179 err = i2c_smbus_write_i2c_block_data(client, RX8581_REG_SC, 7, buf); 217 err = rx8581->write_block_data(client, RX8581_REG_SC, 7, buf);
180 if (err < 0) { 218 if (err < 0) {
181 dev_err(&client->dev, "Unable to write to date registers\n"); 219 dev_err(&client->dev, "Unable to write to date registers\n");
182 return -EIO; 220 return -EIO;
@@ -231,22 +269,39 @@ static const struct rtc_class_ops rx8581_rtc_ops = {
231static int rx8581_probe(struct i2c_client *client, 269static int rx8581_probe(struct i2c_client *client,
232 const struct i2c_device_id *id) 270 const struct i2c_device_id *id)
233{ 271{
234 struct rtc_device *rtc; 272 struct rx8581 *rx8581;
235 273
236 dev_dbg(&client->dev, "%s\n", __func__); 274 dev_dbg(&client->dev, "%s\n", __func__);
237 275
238 if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) 276 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)
239 return -ENODEV; 277 && !i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
278 return -EIO;
240 279
241 dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n"); 280 rx8581 = devm_kzalloc(&client->dev, sizeof(struct rx8581), GFP_KERNEL);
281 if (!rx8581)
282 return -ENOMEM;
242 283
243 rtc = devm_rtc_device_register(&client->dev, rx8581_driver.driver.name, 284 i2c_set_clientdata(client, rx8581);
244 &rx8581_rtc_ops, THIS_MODULE); 285 rx8581->client = client;
245 286
246 if (IS_ERR(rtc)) 287 if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) {
247 return PTR_ERR(rtc); 288 rx8581->read_block_data = i2c_smbus_read_i2c_block_data;
289 rx8581->write_block_data = i2c_smbus_write_i2c_block_data;
290 } else {
291 rx8581->read_block_data = rx8581_read_block_data;
292 rx8581->write_block_data = rx8581_write_block_data;
293 }
248 294
249 i2c_set_clientdata(client, rtc); 295 dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
296
297 rx8581->rtc = devm_rtc_device_register(&client->dev,
298 rx8581_driver.driver.name, &rx8581_rtc_ops, THIS_MODULE);
299
300 if (IS_ERR(rx8581->rtc)) {
301 dev_err(&client->dev,
302 "unable to register the class device\n");
303 return PTR_ERR(rx8581->rtc);
304 }
250 305
251 return 0; 306 return 0;
252} 307}
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index ae8119dc2846..476af93543f6 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -639,6 +639,7 @@ static void s5m_rtc_shutdown(struct platform_device *pdev)
639 s5m_rtc_enable_smpl(info, false); 639 s5m_rtc_enable_smpl(info, false);
640} 640}
641 641
642#ifdef CONFIG_PM_SLEEP
642static int s5m_rtc_resume(struct device *dev) 643static int s5m_rtc_resume(struct device *dev)
643{ 644{
644 struct s5m_rtc_info *info = dev_get_drvdata(dev); 645 struct s5m_rtc_info *info = dev_get_drvdata(dev);
@@ -660,6 +661,7 @@ static int s5m_rtc_suspend(struct device *dev)
660 661
661 return ret; 662 return ret;
662} 663}
664#endif /* CONFIG_PM_SLEEP */
663 665
664static SIMPLE_DEV_PM_OPS(s5m_rtc_pm_ops, s5m_rtc_suspend, s5m_rtc_resume); 666static SIMPLE_DEV_PM_OPS(s5m_rtc_pm_ops, s5m_rtc_suspend, s5m_rtc_resume);
665 667
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index c2e80d7ca5e2..1915464e4cd6 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -479,7 +479,7 @@ static int twl_rtc_probe(struct platform_device *pdev)
479 u8 rd_reg; 479 u8 rd_reg;
480 480
481 if (irq <= 0) 481 if (irq <= 0)
482 goto out1; 482 return ret;
483 483
484 /* Initialize the register map */ 484 /* Initialize the register map */
485 if (twl_class_is_4030()) 485 if (twl_class_is_4030())
@@ -489,7 +489,7 @@ static int twl_rtc_probe(struct platform_device *pdev)
489 489
490 ret = twl_rtc_read_u8(&rd_reg, REG_RTC_STATUS_REG); 490 ret = twl_rtc_read_u8(&rd_reg, REG_RTC_STATUS_REG);
491 if (ret < 0) 491 if (ret < 0)
492 goto out1; 492 return ret;
493 493
494 if (rd_reg & BIT_RTC_STATUS_REG_POWER_UP_M) 494 if (rd_reg & BIT_RTC_STATUS_REG_POWER_UP_M)
495 dev_warn(&pdev->dev, "Power up reset detected.\n"); 495 dev_warn(&pdev->dev, "Power up reset detected.\n");
@@ -500,7 +500,7 @@ static int twl_rtc_probe(struct platform_device *pdev)
500 /* Clear RTC Power up reset and pending alarm interrupts */ 500 /* Clear RTC Power up reset and pending alarm interrupts */
501 ret = twl_rtc_write_u8(rd_reg, REG_RTC_STATUS_REG); 501 ret = twl_rtc_write_u8(rd_reg, REG_RTC_STATUS_REG);
502 if (ret < 0) 502 if (ret < 0)
503 goto out1; 503 return ret;
504 504
505 if (twl_class_is_6030()) { 505 if (twl_class_is_6030()) {
506 twl6030_interrupt_unmask(TWL6030_RTC_INT_MASK, 506 twl6030_interrupt_unmask(TWL6030_RTC_INT_MASK,
@@ -512,7 +512,7 @@ static int twl_rtc_probe(struct platform_device *pdev)
512 dev_info(&pdev->dev, "Enabling TWL-RTC\n"); 512 dev_info(&pdev->dev, "Enabling TWL-RTC\n");
513 ret = twl_rtc_write_u8(BIT_RTC_CTRL_REG_STOP_RTC_M, REG_RTC_CTRL_REG); 513 ret = twl_rtc_write_u8(BIT_RTC_CTRL_REG_STOP_RTC_M, REG_RTC_CTRL_REG);
514 if (ret < 0) 514 if (ret < 0)
515 goto out1; 515 return ret;
516 516
517 /* ensure interrupts are disabled, bootloaders can be strange */ 517 /* ensure interrupts are disabled, bootloaders can be strange */
518 ret = twl_rtc_write_u8(0, REG_RTC_INTERRUPTS_REG); 518 ret = twl_rtc_write_u8(0, REG_RTC_INTERRUPTS_REG);
@@ -522,34 +522,29 @@ static int twl_rtc_probe(struct platform_device *pdev)
522 /* init cached IRQ enable bits */ 522 /* init cached IRQ enable bits */
523 ret = twl_rtc_read_u8(&rtc_irq_bits, REG_RTC_INTERRUPTS_REG); 523 ret = twl_rtc_read_u8(&rtc_irq_bits, REG_RTC_INTERRUPTS_REG);
524 if (ret < 0) 524 if (ret < 0)
525 goto out1; 525 return ret;
526 526
527 device_init_wakeup(&pdev->dev, 1); 527 device_init_wakeup(&pdev->dev, 1);
528 528
529 rtc = rtc_device_register(pdev->name, 529 rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
530 &pdev->dev, &twl_rtc_ops, THIS_MODULE); 530 &twl_rtc_ops, THIS_MODULE);
531 if (IS_ERR(rtc)) { 531 if (IS_ERR(rtc)) {
532 ret = PTR_ERR(rtc);
533 dev_err(&pdev->dev, "can't register RTC device, err %ld\n", 532 dev_err(&pdev->dev, "can't register RTC device, err %ld\n",
534 PTR_ERR(rtc)); 533 PTR_ERR(rtc));
535 goto out1; 534 return PTR_ERR(rtc);
536 } 535 }
537 536
538 ret = request_threaded_irq(irq, NULL, twl_rtc_interrupt, 537 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
539 IRQF_TRIGGER_RISING | IRQF_ONESHOT, 538 twl_rtc_interrupt,
540 dev_name(&rtc->dev), rtc); 539 IRQF_TRIGGER_RISING | IRQF_ONESHOT,
540 dev_name(&rtc->dev), rtc);
541 if (ret < 0) { 541 if (ret < 0) {
542 dev_err(&pdev->dev, "IRQ is not free.\n"); 542 dev_err(&pdev->dev, "IRQ is not free.\n");
543 goto out2; 543 return ret;
544 } 544 }
545 545
546 platform_set_drvdata(pdev, rtc); 546 platform_set_drvdata(pdev, rtc);
547 return 0; 547 return 0;
548
549out2:
550 rtc_device_unregister(rtc);
551out1:
552 return ret;
553} 548}
554 549
555/* 550/*
@@ -559,9 +554,6 @@ out1:
559static int twl_rtc_remove(struct platform_device *pdev) 554static int twl_rtc_remove(struct platform_device *pdev)
560{ 555{
561 /* leave rtc running, but disable irqs */ 556 /* leave rtc running, but disable irqs */
562 struct rtc_device *rtc = platform_get_drvdata(pdev);
563 int irq = platform_get_irq(pdev, 0);
564
565 mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_ALARM_M); 557 mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
566 mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M); 558 mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M);
567 if (twl_class_is_6030()) { 559 if (twl_class_is_6030()) {
@@ -571,10 +563,6 @@ static int twl_rtc_remove(struct platform_device *pdev)
571 REG_INT_MSK_STS_A); 563 REG_INT_MSK_STS_A);
572 } 564 }
573 565
574
575 free_irq(irq, rtc);
576
577 rtc_device_unregister(rtc);
578 return 0; 566 return 0;
579} 567}
580 568
diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index aabc22c587fb..88c9c92e89fd 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -293,7 +293,7 @@ static int rtc_probe(struct platform_device *pdev)
293 if (!res) 293 if (!res)
294 return -EBUSY; 294 return -EBUSY;
295 295
296 rtc1_base = ioremap(res->start, resource_size(res)); 296 rtc1_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
297 if (!rtc1_base) 297 if (!rtc1_base)
298 return -EBUSY; 298 return -EBUSY;
299 299
@@ -303,13 +303,14 @@ static int rtc_probe(struct platform_device *pdev)
303 goto err_rtc1_iounmap; 303 goto err_rtc1_iounmap;
304 } 304 }
305 305
306 rtc2_base = ioremap(res->start, resource_size(res)); 306 rtc2_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
307 if (!rtc2_base) { 307 if (!rtc2_base) {
308 retval = -EBUSY; 308 retval = -EBUSY;
309 goto err_rtc1_iounmap; 309 goto err_rtc1_iounmap;
310 } 310 }
311 311
312 rtc = rtc_device_register(rtc_name, &pdev->dev, &vr41xx_rtc_ops, THIS_MODULE); 312 rtc = devm_rtc_device_register(&pdev->dev, rtc_name, &vr41xx_rtc_ops,
313 THIS_MODULE);
313 if (IS_ERR(rtc)) { 314 if (IS_ERR(rtc)) {
314 retval = PTR_ERR(rtc); 315 retval = PTR_ERR(rtc);
315 goto err_iounmap_all; 316 goto err_iounmap_all;
@@ -330,24 +331,24 @@ static int rtc_probe(struct platform_device *pdev)
330 aie_irq = platform_get_irq(pdev, 0); 331 aie_irq = platform_get_irq(pdev, 0);
331 if (aie_irq <= 0) { 332 if (aie_irq <= 0) {
332 retval = -EBUSY; 333 retval = -EBUSY;
333 goto err_device_unregister; 334 goto err_iounmap_all;
334 } 335 }
335 336
336 retval = request_irq(aie_irq, elapsedtime_interrupt, 0, 337 retval = devm_request_irq(&pdev->dev, aie_irq, elapsedtime_interrupt, 0,
337 "elapsed_time", pdev); 338 "elapsed_time", pdev);
338 if (retval < 0) 339 if (retval < 0)
339 goto err_device_unregister; 340 goto err_iounmap_all;
340 341
341 pie_irq = platform_get_irq(pdev, 1); 342 pie_irq = platform_get_irq(pdev, 1);
342 if (pie_irq <= 0) { 343 if (pie_irq <= 0) {
343 retval = -EBUSY; 344 retval = -EBUSY;
344 goto err_free_irq; 345 goto err_iounmap_all;
345 } 346 }
346 347
347 retval = request_irq(pie_irq, rtclong1_interrupt, 0, 348 retval = devm_request_irq(&pdev->dev, pie_irq, rtclong1_interrupt, 0,
348 "rtclong1", pdev); 349 "rtclong1", pdev);
349 if (retval < 0) 350 if (retval < 0)
350 goto err_free_irq; 351 goto err_iounmap_all;
351 352
352 platform_set_drvdata(pdev, rtc); 353 platform_set_drvdata(pdev, rtc);
353 354
@@ -358,47 +359,20 @@ static int rtc_probe(struct platform_device *pdev)
358 359
359 return 0; 360 return 0;
360 361
361err_free_irq:
362 free_irq(aie_irq, pdev);
363
364err_device_unregister:
365 rtc_device_unregister(rtc);
366
367err_iounmap_all: 362err_iounmap_all:
368 iounmap(rtc2_base);
369 rtc2_base = NULL; 363 rtc2_base = NULL;
370 364
371err_rtc1_iounmap: 365err_rtc1_iounmap:
372 iounmap(rtc1_base);
373 rtc1_base = NULL; 366 rtc1_base = NULL;
374 367
375 return retval; 368 return retval;
376} 369}
377 370
378static int rtc_remove(struct platform_device *pdev)
379{
380 struct rtc_device *rtc;
381
382 rtc = platform_get_drvdata(pdev);
383 if (rtc)
384 rtc_device_unregister(rtc);
385
386 free_irq(aie_irq, pdev);
387 free_irq(pie_irq, pdev);
388 if (rtc1_base)
389 iounmap(rtc1_base);
390 if (rtc2_base)
391 iounmap(rtc2_base);
392
393 return 0;
394}
395
396/* work with hotplug and coldplug */ 371/* work with hotplug and coldplug */
397MODULE_ALIAS("platform:RTC"); 372MODULE_ALIAS("platform:RTC");
398 373
399static struct platform_driver rtc_platform_driver = { 374static struct platform_driver rtc_platform_driver = {
400 .probe = rtc_probe, 375 .probe = rtc_probe,
401 .remove = rtc_remove,
402 .driver = { 376 .driver = {
403 .name = rtc_name, 377 .name = rtc_name,
404 .owner = THIS_MODULE, 378 .owner = THIS_MODULE,
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 12ca031877d4..52108be69e77 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -357,11 +357,13 @@ static int default_lcd_on = 1;
357static bool mtrr = true; 357static bool mtrr = true;
358#endif 358#endif
359 359
360#ifdef CONFIG_FB_ATY128_BACKLIGHT
360#ifdef CONFIG_PMAC_BACKLIGHT 361#ifdef CONFIG_PMAC_BACKLIGHT
361static int backlight = 1; 362static int backlight = 1;
362#else 363#else
363static int backlight = 0; 364static int backlight = 0;
364#endif 365#endif
366#endif
365 367
366/* PLL constants */ 368/* PLL constants */
367struct aty128_constants { 369struct aty128_constants {
@@ -1671,7 +1673,9 @@ static int aty128fb_setup(char *options)
1671 default_crt_on = simple_strtoul(this_opt+4, NULL, 0); 1673 default_crt_on = simple_strtoul(this_opt+4, NULL, 0);
1672 continue; 1674 continue;
1673 } else if (!strncmp(this_opt, "backlight:", 10)) { 1675 } else if (!strncmp(this_opt, "backlight:", 10)) {
1676#ifdef CONFIG_FB_ATY128_BACKLIGHT
1674 backlight = simple_strtoul(this_opt+10, NULL, 0); 1677 backlight = simple_strtoul(this_opt+10, NULL, 0);
1678#endif
1675 continue; 1679 continue;
1676 } 1680 }
1677#ifdef CONFIG_MTRR 1681#ifdef CONFIG_MTRR
diff --git a/drivers/video/backlight/hp680_bl.c b/drivers/video/backlight/hp680_bl.c
index 00076ecfe9b8..8ea42b8d9bc8 100644
--- a/drivers/video/backlight/hp680_bl.c
+++ b/drivers/video/backlight/hp680_bl.c
@@ -110,8 +110,8 @@ static int hp680bl_probe(struct platform_device *pdev)
110 memset(&props, 0, sizeof(struct backlight_properties)); 110 memset(&props, 0, sizeof(struct backlight_properties));
111 props.type = BACKLIGHT_RAW; 111 props.type = BACKLIGHT_RAW;
112 props.max_brightness = HP680_MAX_INTENSITY; 112 props.max_brightness = HP680_MAX_INTENSITY;
113 bd = backlight_device_register("hp680-bl", &pdev->dev, NULL, 113 bd = devm_backlight_device_register(&pdev->dev, "hp680-bl", &pdev->dev,
114 &hp680bl_ops, &props); 114 NULL, &hp680bl_ops, &props);
115 if (IS_ERR(bd)) 115 if (IS_ERR(bd))
116 return PTR_ERR(bd); 116 return PTR_ERR(bd);
117 117
@@ -131,8 +131,6 @@ static int hp680bl_remove(struct platform_device *pdev)
131 bd->props.power = 0; 131 bd->props.power = 0;
132 hp680bl_send_intensity(bd); 132 hp680bl_send_intensity(bd);
133 133
134 backlight_device_unregister(bd);
135
136 return 0; 134 return 0;
137} 135}
138 136
diff --git a/drivers/video/backlight/jornada720_bl.c b/drivers/video/backlight/jornada720_bl.c
index 3ccb89340f22..6ce96b4a8796 100644
--- a/drivers/video/backlight/jornada720_bl.c
+++ b/drivers/video/backlight/jornada720_bl.c
@@ -115,9 +115,10 @@ static int jornada_bl_probe(struct platform_device *pdev)
115 memset(&props, 0, sizeof(struct backlight_properties)); 115 memset(&props, 0, sizeof(struct backlight_properties));
116 props.type = BACKLIGHT_RAW; 116 props.type = BACKLIGHT_RAW;
117 props.max_brightness = BL_MAX_BRIGHT; 117 props.max_brightness = BL_MAX_BRIGHT;
118 bd = backlight_device_register(S1D_DEVICENAME, &pdev->dev, NULL,
119 &jornada_bl_ops, &props);
120 118
119 bd = devm_backlight_device_register(&pdev->dev, S1D_DEVICENAME,
120 &pdev->dev, NULL, &jornada_bl_ops,
121 &props);
121 if (IS_ERR(bd)) { 122 if (IS_ERR(bd)) {
122 ret = PTR_ERR(bd); 123 ret = PTR_ERR(bd);
123 dev_err(&pdev->dev, "failed to register device, err=%x\n", ret); 124 dev_err(&pdev->dev, "failed to register device, err=%x\n", ret);
@@ -139,18 +140,8 @@ static int jornada_bl_probe(struct platform_device *pdev)
139 return 0; 140 return 0;
140} 141}
141 142
142static int jornada_bl_remove(struct platform_device *pdev)
143{
144 struct backlight_device *bd = platform_get_drvdata(pdev);
145
146 backlight_device_unregister(bd);
147
148 return 0;
149}
150
151static struct platform_driver jornada_bl_driver = { 143static struct platform_driver jornada_bl_driver = {
152 .probe = jornada_bl_probe, 144 .probe = jornada_bl_probe,
153 .remove = jornada_bl_remove,
154 .driver = { 145 .driver = {
155 .name = "jornada_bl", 146 .name = "jornada_bl",
156 }, 147 },
diff --git a/drivers/video/backlight/jornada720_lcd.c b/drivers/video/backlight/jornada720_lcd.c
index b061413f1a65..da3876c9b3ae 100644
--- a/drivers/video/backlight/jornada720_lcd.c
+++ b/drivers/video/backlight/jornada720_lcd.c
@@ -100,7 +100,8 @@ static int jornada_lcd_probe(struct platform_device *pdev)
100 struct lcd_device *lcd_device; 100 struct lcd_device *lcd_device;
101 int ret; 101 int ret;
102 102
103 lcd_device = lcd_device_register(S1D_DEVICENAME, &pdev->dev, NULL, &jornada_lcd_props); 103 lcd_device = devm_lcd_device_register(&pdev->dev, S1D_DEVICENAME,
104 &pdev->dev, NULL, &jornada_lcd_props);
104 105
105 if (IS_ERR(lcd_device)) { 106 if (IS_ERR(lcd_device)) {
106 ret = PTR_ERR(lcd_device); 107 ret = PTR_ERR(lcd_device);
@@ -119,18 +120,8 @@ static int jornada_lcd_probe(struct platform_device *pdev)
119 return 0; 120 return 0;
120} 121}
121 122
122static int jornada_lcd_remove(struct platform_device *pdev)
123{
124 struct lcd_device *lcd_device = platform_get_drvdata(pdev);
125
126 lcd_device_unregister(lcd_device);
127
128 return 0;
129}
130
131static struct platform_driver jornada_lcd_driver = { 123static struct platform_driver jornada_lcd_driver = {
132 .probe = jornada_lcd_probe, 124 .probe = jornada_lcd_probe,
133 .remove = jornada_lcd_remove,
134 .driver = { 125 .driver = {
135 .name = "jornada_lcd", 126 .name = "jornada_lcd",
136 }, 127 },
diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index 7592cc25c963..84a110a719cb 100644
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -78,7 +78,7 @@ static struct kb3886bl_machinfo *bl_machinfo;
78static unsigned long kb3886bl_flags; 78static unsigned long kb3886bl_flags;
79#define KB3886BL_SUSPENDED 0x01 79#define KB3886BL_SUSPENDED 0x01
80 80
81static struct dmi_system_id __initdata kb3886bl_device_table[] = { 81static struct dmi_system_id kb3886bl_device_table[] __initdata = {
82 { 82 {
83 .ident = "Sahara Touch-iT", 83 .ident = "Sahara Touch-iT",
84 .matches = { 84 .matches = {
diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index b5fc13bc24e7..63e763828e0e 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -223,8 +223,8 @@ static int l4f00242t03_probe(struct spi_device *spi)
223 return PTR_ERR(priv->core_reg); 223 return PTR_ERR(priv->core_reg);
224 } 224 }
225 225
226 priv->ld = lcd_device_register("l4f00242t03", 226 priv->ld = devm_lcd_device_register(&spi->dev, "l4f00242t03", &spi->dev,
227 &spi->dev, priv, &l4f_ops); 227 priv, &l4f_ops);
228 if (IS_ERR(priv->ld)) 228 if (IS_ERR(priv->ld))
229 return PTR_ERR(priv->ld); 229 return PTR_ERR(priv->ld);
230 230
@@ -243,8 +243,6 @@ static int l4f00242t03_remove(struct spi_device *spi)
243 struct l4f00242t03_priv *priv = spi_get_drvdata(spi); 243 struct l4f00242t03_priv *priv = spi_get_drvdata(spi);
244 244
245 l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN); 245 l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN);
246 lcd_device_unregister(priv->ld);
247
248 return 0; 246 return 0;
249} 247}
250 248
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index cae80d555e84..2ca3a040007b 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -125,7 +125,7 @@ static bool lp855x_is_valid_rom_area(struct lp855x *lp, u8 addr)
125 return false; 125 return false;
126 } 126 }
127 127
128 return (addr >= start && addr <= end); 128 return addr >= start && addr <= end;
129} 129}
130 130
131static int lp8557_bl_off(struct lp855x *lp) 131static int lp8557_bl_off(struct lp855x *lp)
diff --git a/drivers/video/backlight/lp8788_bl.c b/drivers/video/backlight/lp8788_bl.c
index e49905d495dc..daba34dc46d4 100644
--- a/drivers/video/backlight/lp8788_bl.c
+++ b/drivers/video/backlight/lp8788_bl.c
@@ -63,13 +63,13 @@ static struct lp8788_bl_config default_bl_config = {
63 63
64static inline bool is_brightness_ctrl_by_pwm(enum lp8788_bl_ctrl_mode mode) 64static inline bool is_brightness_ctrl_by_pwm(enum lp8788_bl_ctrl_mode mode)
65{ 65{
66 return (mode == LP8788_BL_COMB_PWM_BASED); 66 return mode == LP8788_BL_COMB_PWM_BASED;
67} 67}
68 68
69static inline bool is_brightness_ctrl_by_register(enum lp8788_bl_ctrl_mode mode) 69static inline bool is_brightness_ctrl_by_register(enum lp8788_bl_ctrl_mode mode)
70{ 70{
71 return (mode == LP8788_BL_REGISTER_ONLY || 71 return mode == LP8788_BL_REGISTER_ONLY ||
72 mode == LP8788_BL_COMB_REGISTER_BASED); 72 mode == LP8788_BL_COMB_REGISTER_BASED;
73} 73}
74 74
75static int lp8788_backlight_configure(struct lp8788_bl *bl) 75static int lp8788_backlight_configure(struct lp8788_bl *bl)
diff --git a/drivers/video/backlight/omap1_bl.c b/drivers/video/backlight/omap1_bl.c
index ac11a4650c19..a0dcd88ac74f 100644
--- a/drivers/video/backlight/omap1_bl.c
+++ b/drivers/video/backlight/omap1_bl.c
@@ -146,8 +146,8 @@ static int omapbl_probe(struct platform_device *pdev)
146 memset(&props, 0, sizeof(struct backlight_properties)); 146 memset(&props, 0, sizeof(struct backlight_properties));
147 props.type = BACKLIGHT_RAW; 147 props.type = BACKLIGHT_RAW;
148 props.max_brightness = OMAPBL_MAX_INTENSITY; 148 props.max_brightness = OMAPBL_MAX_INTENSITY;
149 dev = backlight_device_register("omap-bl", &pdev->dev, bl, &omapbl_ops, 149 dev = devm_backlight_device_register(&pdev->dev, "omap-bl", &pdev->dev,
150 &props); 150 bl, &omapbl_ops, &props);
151 if (IS_ERR(dev)) 151 if (IS_ERR(dev))
152 return PTR_ERR(dev); 152 return PTR_ERR(dev);
153 153
@@ -170,20 +170,10 @@ static int omapbl_probe(struct platform_device *pdev)
170 return 0; 170 return 0;
171} 171}
172 172
173static int omapbl_remove(struct platform_device *pdev)
174{
175 struct backlight_device *dev = platform_get_drvdata(pdev);
176
177 backlight_device_unregister(dev);
178
179 return 0;
180}
181
182static SIMPLE_DEV_PM_OPS(omapbl_pm_ops, omapbl_suspend, omapbl_resume); 173static SIMPLE_DEV_PM_OPS(omapbl_pm_ops, omapbl_suspend, omapbl_resume);
183 174
184static struct platform_driver omapbl_driver = { 175static struct platform_driver omapbl_driver = {
185 .probe = omapbl_probe, 176 .probe = omapbl_probe,
186 .remove = omapbl_remove,
187 .driver = { 177 .driver = {
188 .name = "omap-bl", 178 .name = "omap-bl",
189 .pm = &omapbl_pm_ops, 179 .pm = &omapbl_pm_ops,
diff --git a/drivers/video/backlight/ot200_bl.c b/drivers/video/backlight/ot200_bl.c
index fdbb6ee5027c..f5a5202dd79d 100644
--- a/drivers/video/backlight/ot200_bl.c
+++ b/drivers/video/backlight/ot200_bl.c
@@ -118,8 +118,9 @@ static int ot200_backlight_probe(struct platform_device *pdev)
118 props.brightness = 100; 118 props.brightness = 100;
119 props.type = BACKLIGHT_RAW; 119 props.type = BACKLIGHT_RAW;
120 120
121 bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, data, 121 bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev),
122 &ot200_backlight_ops, &props); 122 &pdev->dev, data, &ot200_backlight_ops,
123 &props);
123 if (IS_ERR(bl)) { 124 if (IS_ERR(bl)) {
124 dev_err(&pdev->dev, "failed to register backlight\n"); 125 dev_err(&pdev->dev, "failed to register backlight\n");
125 retval = PTR_ERR(bl); 126 retval = PTR_ERR(bl);
@@ -137,10 +138,6 @@ error_devm_kzalloc:
137 138
138static int ot200_backlight_remove(struct platform_device *pdev) 139static int ot200_backlight_remove(struct platform_device *pdev)
139{ 140{
140 struct backlight_device *bl = platform_get_drvdata(pdev);
141
142 backlight_device_unregister(bl);
143
144 /* on module unload set brightness to 100% */ 141 /* on module unload set brightness to 100% */
145 cs5535_mfgpt_write(pwm_timer, MFGPT_REG_COUNTER, 0); 142 cs5535_mfgpt_write(pwm_timer, MFGPT_REG_COUNTER, 0);
146 cs5535_mfgpt_write(pwm_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN); 143 cs5535_mfgpt_write(pwm_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
index b8db9338cacd..3ad676558c80 100644
--- a/drivers/video/backlight/tosa_bl.c
+++ b/drivers/video/backlight/tosa_bl.c
@@ -105,8 +105,9 @@ static int tosa_bl_probe(struct i2c_client *client,
105 memset(&props, 0, sizeof(struct backlight_properties)); 105 memset(&props, 0, sizeof(struct backlight_properties));
106 props.type = BACKLIGHT_RAW; 106 props.type = BACKLIGHT_RAW;
107 props.max_brightness = 512 - 1; 107 props.max_brightness = 512 - 1;
108 data->bl = backlight_device_register("tosa-bl", &client->dev, data, 108 data->bl = devm_backlight_device_register(&client->dev, "tosa-bl",
109 &bl_ops, &props); 109 &client->dev, data, &bl_ops,
110 &props);
110 if (IS_ERR(data->bl)) { 111 if (IS_ERR(data->bl)) {
111 ret = PTR_ERR(data->bl); 112 ret = PTR_ERR(data->bl);
112 goto err_reg; 113 goto err_reg;
@@ -128,9 +129,7 @@ static int tosa_bl_remove(struct i2c_client *client)
128{ 129{
129 struct tosa_bl_data *data = i2c_get_clientdata(client); 130 struct tosa_bl_data *data = i2c_get_clientdata(client);
130 131
131 backlight_device_unregister(data->bl);
132 data->bl = NULL; 132 data->bl = NULL;
133
134 return 0; 133 return 0;
135} 134}
136 135
diff --git a/drivers/video/backlight/tosa_lcd.c b/drivers/video/backlight/tosa_lcd.c
index be5d636764bf..f08d641ccd01 100644
--- a/drivers/video/backlight/tosa_lcd.c
+++ b/drivers/video/backlight/tosa_lcd.c
@@ -206,8 +206,8 @@ static int tosa_lcd_probe(struct spi_device *spi)
206 206
207 tosa_lcd_tg_on(data); 207 tosa_lcd_tg_on(data);
208 208
209 data->lcd = lcd_device_register("tosa-lcd", &spi->dev, data, 209 data->lcd = devm_lcd_device_register(&spi->dev, "tosa-lcd", &spi->dev,
210 &tosa_lcd_ops); 210 data, &tosa_lcd_ops);
211 211
212 if (IS_ERR(data->lcd)) { 212 if (IS_ERR(data->lcd)) {
213 ret = PTR_ERR(data->lcd); 213 ret = PTR_ERR(data->lcd);
@@ -226,8 +226,6 @@ static int tosa_lcd_remove(struct spi_device *spi)
226{ 226{
227 struct tosa_lcd_data *data = spi_get_drvdata(spi); 227 struct tosa_lcd_data *data = spi_get_drvdata(spi);
228 228
229 lcd_device_unregister(data->lcd);
230
231 if (data->i2c) 229 if (data->i2c)
232 i2c_unregister_device(data->i2c); 230 i2c_unregister_device(data->i2c);
233 231
diff --git a/drivers/vlynq/vlynq.c b/drivers/vlynq/vlynq.c
index 7b07135ab26e..c0227f9418eb 100644
--- a/drivers/vlynq/vlynq.c
+++ b/drivers/vlynq/vlynq.c
@@ -762,7 +762,8 @@ static int vlynq_remove(struct platform_device *pdev)
762 762
763 device_unregister(&dev->dev); 763 device_unregister(&dev->dev);
764 iounmap(dev->local); 764 iounmap(dev->local);
765 release_mem_region(dev->regs_start, dev->regs_end - dev->regs_start); 765 release_mem_region(dev->regs_start,
766 dev->regs_end - dev->regs_start + 1);
766 767
767 kfree(dev); 768 kfree(dev);
768 769
diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c
index e36b18b2817b..9709b8b484ba 100644
--- a/drivers/w1/masters/w1-gpio.c
+++ b/drivers/w1/masters/w1-gpio.c
@@ -18,10 +18,31 @@
18#include <linux/of_gpio.h> 18#include <linux/of_gpio.h>
19#include <linux/err.h> 19#include <linux/err.h>
20#include <linux/of.h> 20#include <linux/of.h>
21#include <linux/delay.h>
21 22
22#include "../w1.h" 23#include "../w1.h"
23#include "../w1_int.h" 24#include "../w1_int.h"
24 25
26static u8 w1_gpio_set_pullup(void *data, int delay)
27{
28 struct w1_gpio_platform_data *pdata = data;
29
30 if (delay) {
31 pdata->pullup_duration = delay;
32 } else {
33 if (pdata->pullup_duration) {
34 gpio_direction_output(pdata->pin, 1);
35
36 msleep(pdata->pullup_duration);
37
38 gpio_direction_input(pdata->pin);
39 }
40 pdata->pullup_duration = 0;
41 }
42
43 return 0;
44}
45
25static void w1_gpio_write_bit_dir(void *data, u8 bit) 46static void w1_gpio_write_bit_dir(void *data, u8 bit)
26{ 47{
27 struct w1_gpio_platform_data *pdata = data; 48 struct w1_gpio_platform_data *pdata = data;
@@ -132,6 +153,7 @@ static int w1_gpio_probe(struct platform_device *pdev)
132 } else { 153 } else {
133 gpio_direction_input(pdata->pin); 154 gpio_direction_input(pdata->pin);
134 master->write_bit = w1_gpio_write_bit_dir; 155 master->write_bit = w1_gpio_write_bit_dir;
156 master->set_pullup = w1_gpio_set_pullup;
135 } 157 }
136 158
137 err = w1_add_master_device(master); 159 err = w1_add_master_device(master);
diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index 5a98649f6abc..590bd8a7cd1b 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -117,18 +117,6 @@ int w1_add_master_device(struct w1_bus_master *master)
117 printk(KERN_ERR "w1_add_master_device: invalid function set\n"); 117 printk(KERN_ERR "w1_add_master_device: invalid function set\n");
118 return(-EINVAL); 118 return(-EINVAL);
119 } 119 }
120 /* While it would be electrically possible to make a device that
121 * generated a strong pullup in bit bang mode, only hardware that
122 * controls 1-wire time frames are even expected to support a strong
123 * pullup. w1_io.c would need to support calling set_pullup before
124 * the last write_bit operation of a w1_write_8 which it currently
125 * doesn't.
126 */
127 if (!master->write_byte && !master->touch_bit && master->set_pullup) {
128 printk(KERN_ERR "w1_add_master_device: set_pullup requires "
129 "write_byte or touch_bit, disabling\n");
130 master->set_pullup = NULL;
131 }
132 120
133 /* Lock until the device is added (or not) to w1_masters. */ 121 /* Lock until the device is added (or not) to w1_masters. */
134 mutex_lock(&w1_mlock); 122 mutex_lock(&w1_mlock);
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-31 00:56:41 -0400