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-rw-r--r--drivers/char/Kconfig3
-rw-r--r--drivers/char/agp/frontend.c2
-rw-r--r--drivers/char/agp/intel-gtt.c32
-rw-r--r--drivers/char/agp/uninorth-agp.c1
-rw-r--r--drivers/char/hw_random/Kconfig15
-rw-r--r--drivers/char/hw_random/Makefile1
-rw-r--r--drivers/char/hw_random/bcm63xx-rng.c11
-rw-r--r--drivers/char/hw_random/exynos-rng.c10
-rw-r--r--drivers/char/hw_random/n2-drv.c10
-rw-r--r--drivers/char/hw_random/pic32-rng.c155
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c11
-rw-r--r--drivers/char/ipmi/ipmi_ssif.c13
-rw-r--r--drivers/char/ipmi/ipmi_watchdog.c2
-rw-r--r--drivers/char/mem.c2
-rw-r--r--drivers/char/pcmcia/synclink_cs.c21
-rw-r--r--drivers/char/ppdev.c25
-rw-r--r--drivers/char/tpm/tpm-chip.c19
-rw-r--r--drivers/char/tpm/tpm.h7
-rw-r--r--drivers/char/tpm/tpm2-cmd.c22
-rw-r--r--drivers/char/tpm/tpm_crb.c196
-rw-r--r--drivers/char/tpm/tpm_eventlog.c14
-rw-r--r--drivers/char/tpm/tpm_tis.c253
-rw-r--r--drivers/char/ttyprintk.c2
-rw-r--r--drivers/char/xillybus/xillybus_core.c4
24 files changed, 541 insertions, 290 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index a043107da2af..3ec0766ed5e9 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,8 @@ config JS_RTC
config GEN_RTC
tristate "Generic /dev/rtc emulation"
- depends on RTC!=y && !IA64 && !ARM && !M32R && !MIPS && !SPARC && !FRV && !S390 && !SUPERH && !AVR32 && !BLACKFIN && !UML
+ depends on RTC!=y
+ depends on ALPHA || M68K || MN10300 || PARISC || PPC || X86
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 09f17eb73486..0f64d149c98d 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -156,7 +156,7 @@ static pgprot_t agp_convert_mmap_flags(int prot)
{
unsigned long prot_bits;
- prot_bits = calc_vm_prot_bits(prot) | VM_SHARED;
+ prot_bits = calc_vm_prot_bits(prot, 0) | VM_SHARED;
return vm_get_page_prot(prot_bits);
}
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 1341a94cc779..aef87fdbd187 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -555,8 +555,10 @@ static unsigned int intel_gtt_mappable_entries(void)
static void intel_gtt_teardown_scratch_page(void)
{
set_pages_wb(intel_private.scratch_page, 1);
- pci_unmap_page(intel_private.pcidev, intel_private.scratch_page_dma,
- PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+ if (intel_private.needs_dmar)
+ pci_unmap_page(intel_private.pcidev,
+ intel_private.scratch_page_dma,
+ PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
__free_page(intel_private.scratch_page);
}
@@ -1346,16 +1348,6 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
{
int i, mask;
- /*
- * Can be called from the fake agp driver but also directly from
- * drm/i915.ko. Hence we need to check whether everything is set up
- * already.
- */
- if (intel_private.driver) {
- intel_private.refcount++;
- return 1;
- }
-
for (i = 0; intel_gtt_chipsets[i].name != NULL; i++) {
if (gpu_pdev) {
if (gpu_pdev->device ==
@@ -1376,16 +1368,26 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
if (!intel_private.driver)
return 0;
- intel_private.refcount++;
-
#if IS_ENABLED(CONFIG_AGP_INTEL)
if (bridge) {
+ if (INTEL_GTT_GEN > 1)
+ return 0;
+
bridge->driver = &intel_fake_agp_driver;
bridge->dev_private_data = &intel_private;
bridge->dev = bridge_pdev;
}
#endif
+
+ /*
+ * Can be called from the fake agp driver but also directly from
+ * drm/i915.ko. Hence we need to check whether everything is set up
+ * already.
+ */
+ if (intel_private.refcount++)
+ return 1;
+
intel_private.bridge_dev = pci_dev_get(bridge_pdev);
dev_info(&bridge_pdev->dev, "Intel %s Chipset\n", intel_gtt_chipsets[i].name);
@@ -1430,6 +1432,8 @@ void intel_gmch_remove(void)
if (--intel_private.refcount)
return;
+ if (intel_private.scratch_page)
+ intel_gtt_teardown_scratch_page();
if (intel_private.pcidev)
pci_dev_put(intel_private.pcidev);
if (intel_private.bridge_dev)
diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c
index 05755441250c..fdced547ad59 100644
--- a/drivers/char/agp/uninorth-agp.c
+++ b/drivers/char/agp/uninorth-agp.c
@@ -10,7 +10,6 @@
#include <linux/delay.h>
#include <linux/vmalloc.h>
#include <asm/uninorth.h>
-#include <asm/pci-bridge.h>
#include <asm/prom.h>
#include <asm/pmac_feature.h>
#include "agp.h"
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index ff00331bff49..67ee8b08ab53 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -77,7 +77,7 @@ config HW_RANDOM_ATMEL
config HW_RANDOM_BCM63XX
tristate "Broadcom BCM63xx Random Number Generator support"
- depends on BCM63XX
+ depends on BCM63XX || BMIPS_GENERIC
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
@@ -382,6 +382,19 @@ config HW_RANDOM_STM32
If unsure, say N.
+config HW_RANDOM_PIC32
+ tristate "Microchip PIC32 Random Number Generator support"
+ depends on HW_RANDOM && MACH_PIC32
+ default y
+ ---help---
+ This driver provides kernel-side support for the Random Number
+ Generator hardware found on a PIC32.
+
+ To compile this driver as a module, choose M here. the
+ module will be called pic32-rng.
+
+ If unsure, say Y.
+
endif # HW_RANDOM
config UML_RANDOM
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index 5ad397635128..f5a6fa7690e7 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -33,3 +33,4 @@ obj-$(CONFIG_HW_RANDOM_MSM) += msm-rng.o
obj-$(CONFIG_HW_RANDOM_ST) += st-rng.o
obj-$(CONFIG_HW_RANDOM_XGENE) += xgene-rng.o
obj-$(CONFIG_HW_RANDOM_STM32) += stm32-rng.o
+obj-$(CONFIG_HW_RANDOM_PIC32) += pic32-rng.o
diff --git a/drivers/char/hw_random/bcm63xx-rng.c b/drivers/char/hw_random/bcm63xx-rng.c
index 4b31f1387f37..ca9c40309757 100644
--- a/drivers/char/hw_random/bcm63xx-rng.c
+++ b/drivers/char/hw_random/bcm63xx-rng.c
@@ -79,10 +79,8 @@ static int bcm63xx_rng_data_read(struct hwrng *rng, u32 *data)
static int bcm63xx_rng_probe(struct platform_device *pdev)
{
struct resource *r;
- struct clk *clk;
int ret;
struct bcm63xx_rng_priv *priv;
- struct hwrng *rng;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) {
@@ -132,10 +130,19 @@ static int bcm63xx_rng_probe(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id bcm63xx_rng_of_match[] = {
+ { .compatible = "brcm,bcm6368-rng", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, bcm63xx_rng_of_match);
+#endif
+
static struct platform_driver bcm63xx_rng_driver = {
.probe = bcm63xx_rng_probe,
.driver = {
.name = "bcm63xx-rng",
+ .of_match_table = of_match_ptr(bcm63xx_rng_of_match),
},
};
diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c
index 30cf4623184f..ada081232528 100644
--- a/drivers/char/hw_random/exynos-rng.c
+++ b/drivers/char/hw_random/exynos-rng.c
@@ -144,8 +144,7 @@ static int exynos_rng_probe(struct platform_device *pdev)
return devm_hwrng_register(&pdev->dev, &exynos_rng->rng);
}
-#ifdef CONFIG_PM
-static int exynos_rng_runtime_suspend(struct device *dev)
+static int __maybe_unused exynos_rng_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct exynos_rng *exynos_rng = platform_get_drvdata(pdev);
@@ -155,7 +154,7 @@ static int exynos_rng_runtime_suspend(struct device *dev)
return 0;
}
-static int exynos_rng_runtime_resume(struct device *dev)
+static int __maybe_unused exynos_rng_runtime_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct exynos_rng *exynos_rng = platform_get_drvdata(pdev);
@@ -163,12 +162,12 @@ static int exynos_rng_runtime_resume(struct device *dev)
return clk_prepare_enable(exynos_rng->clk);
}
-static int exynos_rng_suspend(struct device *dev)
+static int __maybe_unused exynos_rng_suspend(struct device *dev)
{
return pm_runtime_force_suspend(dev);
}
-static int exynos_rng_resume(struct device *dev)
+static int __maybe_unused exynos_rng_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct exynos_rng *exynos_rng = platform_get_drvdata(pdev);
@@ -180,7 +179,6 @@ static int exynos_rng_resume(struct device *dev)
return exynos_rng_configure(exynos_rng);
}
-#endif
static const struct dev_pm_ops exynos_rng_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(exynos_rng_suspend, exynos_rng_resume)
diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c
index 843d6f6aee7a..3b06c1d6cfb2 100644
--- a/drivers/char/hw_random/n2-drv.c
+++ b/drivers/char/hw_random/n2-drv.c
@@ -743,6 +743,16 @@ static const struct of_device_id n2rng_match[] = {
.compatible = "SUNW,kt-rng",
.data = (void *) 1,
},
+ {
+ .name = "random-number-generator",
+ .compatible = "ORCL,m4-rng",
+ .data = (void *) 1,
+ },
+ {
+ .name = "random-number-generator",
+ .compatible = "ORCL,m7-rng",
+ .data = (void *) 1,
+ },
{},
};
MODULE_DEVICE_TABLE(of, n2rng_match);
diff --git a/drivers/char/hw_random/pic32-rng.c b/drivers/char/hw_random/pic32-rng.c
new file mode 100644
index 000000000000..108897bea2d0
--- /dev/null
+++ b/drivers/char/hw_random/pic32-rng.c
@@ -0,0 +1,155 @@
+/*
+ * PIC32 RNG driver
+ *
+ * Joshua Henderson <joshua.henderson@microchip.com>
+ * Copyright (C) 2016 Microchip Technology Inc. All rights reserved.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/err.h>
+#include <linux/hw_random.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#define RNGCON 0x04
+#define TRNGEN BIT(8)
+#define PRNGEN BIT(9)
+#define PRNGCONT BIT(10)
+#define TRNGMOD BIT(11)
+#define SEEDLOAD BIT(12)
+#define RNGPOLY1 0x08
+#define RNGPOLY2 0x0C
+#define RNGNUMGEN1 0x10
+#define RNGNUMGEN2 0x14
+#define RNGSEED1 0x18
+#define RNGSEED2 0x1C
+#define RNGRCNT 0x20
+#define RCNT_MASK 0x7F
+
+struct pic32_rng {
+ void __iomem *base;
+ struct hwrng rng;
+ struct clk *clk;
+};
+
+/*
+ * The TRNG can generate up to 24Mbps. This is a timeout that should be safe
+ * enough given the instructions in the loop and that the TRNG may not always
+ * be at maximum rate.
+ */
+#define RNG_TIMEOUT 500
+
+static int pic32_rng_read(struct hwrng *rng, void *buf, size_t max,
+ bool wait)
+{
+ struct pic32_rng *priv = container_of(rng, struct pic32_rng, rng);
+ u64 *data = buf;
+ u32 t;
+ unsigned int timeout = RNG_TIMEOUT;
+
+ if (max < 8)
+ return 0;
+
+ do {
+ t = readl(priv->base + RNGRCNT) & RCNT_MASK;
+ if (t == 64) {
+ /* TRNG value comes through the seed registers */
+ *data = ((u64)readl(priv->base + RNGSEED2) << 32) +
+ readl(priv->base + RNGSEED1);
+ return 8;
+ }
+ } while (wait && --timeout);
+
+ return -EIO;
+}
+
+static int pic32_rng_probe(struct platform_device *pdev)
+{
+ struct pic32_rng *priv;
+ struct resource *res;
+ u32 v;
+ int ret;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->base))
+ return PTR_ERR(priv->base);
+
+ priv->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(priv->clk))
+ return PTR_ERR(priv->clk);
+
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
+
+ /* enable TRNG in enhanced mode */
+ v = TRNGEN | TRNGMOD;
+ writel(v, priv->base + RNGCON);
+
+ priv->rng.name = pdev->name;
+ priv->rng.read = pic32_rng_read;
+
+ ret = hwrng_register(&priv->rng);
+ if (ret)
+ goto err_register;
+
+ platform_set_drvdata(pdev, priv);
+
+ return 0;
+
+err_register:
+ clk_disable_unprepare(priv->clk);
+ return ret;
+}
+
+static int pic32_rng_remove(struct platform_device *pdev)
+{
+ struct pic32_rng *rng = platform_get_drvdata(pdev);
+
+ hwrng_unregister(&rng->rng);
+ writel(0, rng->base + RNGCON);
+ clk_disable_unprepare(rng->clk);
+ return 0;
+}
+
+static const struct of_device_id pic32_rng_of_match[] = {
+ { .compatible = "microchip,pic32mzda-rng", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, pic32_rng_of_match);
+
+static struct platform_driver pic32_rng_driver = {
+ .probe = pic32_rng_probe,
+ .remove = pic32_rng_remove,
+ .driver = {
+ .name = "pic32-rng",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(pic32_rng_of_match),
+ },
+};
+
+module_platform_driver(pic32_rng_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Joshua Henderson <joshua.henderson@microchip.com>");
+MODULE_DESCRIPTION("Microchip PIC32 RNG Driver");
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 7fddd8696211..1e25b5205724 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -849,7 +849,7 @@ static enum si_sm_result smi_event_handler(struct smi_info *smi_info,
smi_inc_stat(smi_info, complete_transactions);
handle_transaction_done(smi_info);
- si_sm_result = smi_info->handlers->event(smi_info->si_sm, 0);
+ goto restart;
} else if (si_sm_result == SI_SM_HOSED) {
smi_inc_stat(smi_info, hosed_count);
@@ -866,7 +866,7 @@ static enum si_sm_result smi_event_handler(struct smi_info *smi_info,
*/
return_hosed_msg(smi_info, IPMI_ERR_UNSPECIFIED);
}
- si_sm_result = smi_info->handlers->event(smi_info->si_sm, 0);
+ goto restart;
}
/*
@@ -1363,12 +1363,12 @@ MODULE_PARM_DESC(trydmi, "Setting this to zero will disable the"
" default scan of the interfaces identified via DMI");
#endif
module_param_named(tryplatform, si_tryplatform, bool, 0);
-MODULE_PARM_DESC(tryacpi, "Setting this to zero will disable the"
+MODULE_PARM_DESC(tryplatform, "Setting this to zero will disable the"
" default scan of the interfaces identified via platform"
" interfaces like openfirmware");
#ifdef CONFIG_PCI
module_param_named(trypci, si_trypci, bool, 0);
-MODULE_PARM_DESC(tryacpi, "Setting this to zero will disable the"
+MODULE_PARM_DESC(trypci, "Setting this to zero will disable the"
" default scan of the interfaces identified via pci");
#endif
module_param_named(trydefaults, si_trydefaults, bool, 0);
@@ -2690,6 +2690,9 @@ static int acpi_ipmi_probe(struct platform_device *dev)
unsigned long long tmp;
int rv = -EINVAL;
+ if (!si_tryacpi)
+ return 0;
+
handle = ACPI_HANDLE(&dev->dev);
if (!handle)
return -ENODEV;
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 5f1c3d08ba65..8b3be8b92573 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -920,23 +920,18 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result,
msg_done_handler(ssif_info, -EIO, NULL, 0);
}
} else {
+ /* Ready to request the result. */
unsigned long oflags, *flags;
- bool got_alert;
ssif_inc_stat(ssif_info, sent_messages);
ssif_inc_stat(ssif_info, sent_messages_parts);
flags = ipmi_ssif_lock_cond(ssif_info, &oflags);
- got_alert = ssif_info->got_alert;
- if (got_alert) {
+ if (ssif_info->got_alert) {
+ /* The result is already ready, just start it. */
ssif_info->got_alert = false;
- ssif_info->waiting_alert = false;
- }
-
- if (got_alert) {
ipmi_ssif_unlock_cond(ssif_info, flags);
- /* The alert already happened, try now. */
- retry_timeout((unsigned long) ssif_info);
+ start_get(ssif_info);
} else {
/* Wait a jiffie then request the next message */
ssif_info->waiting_alert = true;
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 096f0cef4da1..4facc7517a6a 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -1140,7 +1140,7 @@ ipmi_nmi(unsigned int val, struct pt_regs *regs)
the timer. So do so. */
pretimeout_since_last_heartbeat = 1;
if (atomic_inc_and_test(&preop_panic_excl))
- panic(PFX "pre-timeout");
+ nmi_panic(regs, PFX "pre-timeout");
}
return NMI_HANDLED;
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 4f6f94c43412..71025c2f6bbb 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -695,7 +695,7 @@ static loff_t memory_lseek(struct file *file, loff_t offset, int orig)
offset += file->f_pos;
case SEEK_SET:
/* to avoid userland mistaking f_pos=-9 as -EBADF=-9 */
- if (IS_ERR_VALUE((unsigned long long)offset)) {
+ if ((unsigned long long)offset >= -MAX_ERRNO) {
ret = -EOVERFLOW;
break;
}
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 45df4bf914f8..22c27652e46a 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -1349,7 +1349,7 @@ static void shutdown(MGSLPC_INFO * info, struct tty_struct *tty)
/* TODO:disable interrupts instead of reset to preserve signal states */
reset_device(info);
- if (!tty || tty->termios.c_cflag & HUPCL) {
+ if (!tty || C_HUPCL(tty)) {
info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
set_signals(info);
}
@@ -1390,7 +1390,7 @@ static void mgslpc_program_hw(MGSLPC_INFO *info, struct tty_struct *tty)
port_irq_enable(info, (unsigned char) PVR_DSR | PVR_RI);
get_signals(info);
- if (info->netcount || (tty && (tty->termios.c_cflag & CREAD)))
+ if (info->netcount || (tty && C_CREAD(tty)))
rx_start(info);
spin_unlock_irqrestore(&info->lock, flags);
@@ -1733,7 +1733,7 @@ static void mgslpc_throttle(struct tty_struct * tty)
if (I_IXOFF(tty))
mgslpc_send_xchar(tty, STOP_CHAR(tty));
- if (tty->termios.c_cflag & CRTSCTS) {
+ if (C_CRTSCTS(tty)) {
spin_lock_irqsave(&info->lock, flags);
info->serial_signals &= ~SerialSignal_RTS;
set_signals(info);
@@ -1762,7 +1762,7 @@ static void mgslpc_unthrottle(struct tty_struct * tty)
mgslpc_send_xchar(tty, START_CHAR(tty));
}
- if (tty->termios.c_cflag & CRTSCTS) {
+ if (C_CRTSCTS(tty)) {
spin_lock_irqsave(&info->lock, flags);
info->serial_signals |= SerialSignal_RTS;
set_signals(info);
@@ -2306,8 +2306,7 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
mgslpc_change_params(info, tty);
/* Handle transition to B0 status */
- if (old_termios->c_cflag & CBAUD &&
- !(tty->termios.c_cflag & CBAUD)) {
+ if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) {
info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
spin_lock_irqsave(&info->lock, flags);
set_signals(info);
@@ -2315,21 +2314,17 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
}
/* Handle transition away from B0 status */
- if (!(old_termios->c_cflag & CBAUD) &&
- tty->termios.c_cflag & CBAUD) {
+ if (!(old_termios->c_cflag & CBAUD) && C_BAUD(tty)) {
info->serial_signals |= SerialSignal_DTR;
- if (!(tty->termios.c_cflag & CRTSCTS) ||
- !test_bit(TTY_THROTTLED, &tty->flags)) {
+ if (!C_CRTSCTS(tty) || !test_bit(TTY_THROTTLED, &tty->flags))
info->serial_signals |= SerialSignal_RTS;
- }
spin_lock_irqsave(&info->lock, flags);
set_signals(info);
spin_unlock_irqrestore(&info->lock, flags);
}
/* Handle turning off CRTSCTS */
- if (old_termios->c_cflag & CRTSCTS &&
- !(tty->termios.c_cflag & CRTSCTS)) {
+ if (old_termios->c_cflag & CRTSCTS && !C_CRTSCTS(tty)) {
tty->hw_stopped = 0;
tx_release(tty);
}
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index d23368874710..f8a483c67b07 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -286,7 +286,7 @@ static int register_device(int minor, struct pp_struct *pp)
struct parport *port;
struct pardevice *pdev = NULL;
char *name;
- struct pardev_cb ppdev_cb;
+ int fl;
name = kasprintf(GFP_KERNEL, CHRDEV "%x", minor);
if (name == NULL)
@@ -299,11 +299,9 @@ static int register_device(int minor, struct pp_struct *pp)
return -ENXIO;
}
- memset(&ppdev_cb, 0, sizeof(ppdev_cb));
- ppdev_cb.irq_func = pp_irq;
- ppdev_cb.flags = (pp->flags & PP_EXCL) ? PARPORT_FLAG_EXCL : 0;
- ppdev_cb.private = pp;
- pdev = parport_register_dev_model(port, name, &ppdev_cb, minor);
+ fl = (pp->flags & PP_EXCL) ? PARPORT_FLAG_EXCL : 0;
+ pdev = parport_register_device(port, name, NULL,
+ NULL, pp_irq, fl, pp);
parport_put_port(port);
if (!pdev) {
@@ -801,23 +799,10 @@ static void pp_detach(struct parport *port)
device_destroy(ppdev_class, MKDEV(PP_MAJOR, port->number));
}
-static int pp_probe(struct pardevice *par_dev)
-{
- struct device_driver *drv = par_dev->dev.driver;
- int len = strlen(drv->name);
-
- if (strncmp(par_dev->name, drv->name, len))
- return -ENODEV;
-
- return 0;
-}
-
static struct parport_driver pp_driver = {
.name = CHRDEV,
- .probe = pp_probe,
- .match_port = pp_attach,
+ .attach = pp_attach,
.detach = pp_detach,
- .devmodel = true,
};
static int __init ppdev_init(void)
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 45cc39aabeee..274dd0123237 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -88,6 +88,7 @@ struct tpm_chip *tpmm_chip_alloc(struct device *dev,
const struct tpm_class_ops *ops)
{
struct tpm_chip *chip;
+ int rc;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
@@ -136,11 +137,17 @@ struct tpm_chip *tpmm_chip_alloc(struct device *dev,
chip->cdev.owner = chip->pdev->driver->owner;
chip->cdev.kobj.parent = &chip->dev.kobj;
+ rc = devm_add_action(dev, (void (*)(void *)) put_device, &chip->dev);
+ if (rc) {
+ put_device(&chip->dev);
+ return ERR_PTR(rc);
+ }
+
return chip;
}
EXPORT_SYMBOL_GPL(tpmm_chip_alloc);
-static int tpm_dev_add_device(struct tpm_chip *chip)
+static int tpm_add_char_device(struct tpm_chip *chip)
{
int rc;
@@ -151,7 +158,6 @@ static int tpm_dev_add_device(struct tpm_chip *chip)
chip->devname, MAJOR(chip->dev.devt),
MINOR(chip->dev.devt), rc);
- device_unregister(&chip->dev);
return rc;
}
@@ -162,16 +168,17 @@ static int tpm_dev_add_device(struct tpm_chip *chip)
chip->devname, MAJOR(chip->dev.devt),
MINOR(chip->dev.devt), rc);
+ cdev_del(&chip->cdev);
return rc;
}
return rc;
}
-static void tpm_dev_del_device(struct tpm_chip *chip)
+static void tpm_del_char_device(struct tpm_chip *chip)
{
cdev_del(&chip->cdev);
- device_unregister(&chip->dev);
+ device_del(&chip->dev);
}
static int tpm1_chip_register(struct tpm_chip *chip)
@@ -222,7 +229,7 @@ int tpm_chip_register(struct tpm_chip *chip)
tpm_add_ppi(chip);
- rc = tpm_dev_add_device(chip);
+ rc = tpm_add_char_device(chip);
if (rc)
goto out_err;
@@ -274,6 +281,6 @@ void tpm_chip_unregister(struct tpm_chip *chip)
sysfs_remove_link(&chip->pdev->kobj, "ppi");
tpm1_chip_unregister(chip);
- tpm_dev_del_device(chip);
+ tpm_del_char_device(chip);
}
EXPORT_SYMBOL_GPL(tpm_chip_unregister);
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 542a80cbfd9c..28b477e8da6a 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -128,13 +128,6 @@ enum tpm2_startup_types {
TPM2_SU_STATE = 0x0001,
};
-enum tpm2_start_method {
- TPM2_START_ACPI = 2,
- TPM2_START_FIFO = 6,
- TPM2_START_CRB = 7,
- TPM2_START_CRB_WITH_ACPI = 8,
-};
-
struct tpm_chip;
struct tpm_vendor_specific {
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index 45a634016f95..b28e4da3d2cf 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -20,7 +20,11 @@
#include <keys/trusted-type.h>
enum tpm2_object_attributes {
- TPM2_ATTR_USER_WITH_AUTH = BIT(6),
+ TPM2_OA_USER_WITH_AUTH = BIT(6),
+};
+
+enum tpm2_session_attributes {
+ TPM2_SA_CONTINUE_SESSION = BIT(0),
};
struct tpm2_startup_in {
@@ -478,22 +482,18 @@ int tpm2_seal_trusted(struct tpm_chip *chip,
tpm_buf_append_u8(&buf, payload->migratable);
/* public */
- if (options->policydigest)
- tpm_buf_append_u16(&buf, 14 + options->digest_len);
- else
- tpm_buf_append_u16(&buf, 14);
-
+ tpm_buf_append_u16(&buf, 14 + options->policydigest_len);
tpm_buf_append_u16(&buf, TPM2_ALG_KEYEDHASH);
tpm_buf_append_u16(&buf, hash);
/* policy */
- if (options->policydigest) {
+ if (options->policydigest_len) {
tpm_buf_append_u32(&buf, 0);
- tpm_buf_append_u16(&buf, options->digest_len);
+ tpm_buf_append_u16(&buf, options->policydigest_len);
tpm_buf_append(&buf, options->policydigest,
- options->digest_len);
+ options->policydigest_len);
} else {
- tpm_buf_append_u32(&buf, TPM2_ATTR_USER_WITH_AUTH);
+ tpm_buf_append_u32(&buf, TPM2_OA_USER_WITH_AUTH);
tpm_buf_append_u16(&buf, 0);
}
@@ -631,7 +631,7 @@ static int tpm2_unseal(struct tpm_chip *chip,
options->policyhandle ?
options->policyhandle : TPM2_RS_PW,
NULL /* nonce */, 0,
- 0 /* session_attributes */,
+ TPM2_SA_CONTINUE_SESSION,
options->blobauth /* hmac */,
TPM_DIGEST_SIZE);
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index 8342cf51ffdc..a12b31940344 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -34,14 +34,6 @@ enum crb_defaults {
CRB_ACPI_START_INDEX = 1,
};
-struct acpi_tpm2 {
- struct acpi_table_header hdr;
- u16 platform_class;
- u16 reserved;
- u64 control_area_pa;
- u32 start_method;
-} __packed;
-
enum crb_ca_request {
CRB_CA_REQ_GO_IDLE = BIT(0),
CRB_CA_REQ_CMD_READY = BIT(1),
@@ -85,6 +77,8 @@ enum crb_flags {
struct crb_priv {
unsigned int flags;
+ struct resource res;
+ void __iomem *iobase;
struct crb_control_area __iomem *cca;
u8 __iomem *cmd;
u8 __iomem *rsp;
@@ -97,7 +91,7 @@ static u8 crb_status(struct tpm_chip *chip)
struct crb_priv *priv = chip->vendor.priv;
u8 sts = 0;
- if ((le32_to_cpu(ioread32(&priv->cca->start)) & CRB_START_INVOKE) !=
+ if ((ioread32(&priv->cca->start) & CRB_START_INVOKE) !=
CRB_START_INVOKE)
sts |= CRB_STS_COMPLETE;
@@ -113,7 +107,7 @@ static int crb_recv(struct tpm_chip *chip, u8 *buf, size_t count)
if (count < 6)
return -EIO;
- if (le32_to_cpu(ioread32(&priv->cca->sts)) & CRB_CA_STS_ERROR)
+ if (ioread32(&priv->cca->sts) & CRB_CA_STS_ERROR)
return -EIO;
memcpy_fromio(buf, priv->rsp, 6);
@@ -149,11 +143,11 @@ static int crb_send(struct tpm_chip *chip, u8 *buf, size_t len)
struct crb_priv *priv = chip->vendor.priv;
int rc = 0;
- if (len > le32_to_cpu(ioread32(&priv->cca->cmd_size))) {
+ if (len > ioread32(&priv->cca->cmd_size)) {
dev_err(&chip->dev,
"invalid command count value %x %zx\n",
(unsigned int) len,
- (size_t) le32_to_cpu(ioread32(&priv->cca->cmd_size)));
+ (size_t) ioread32(&priv->cca->cmd_size));
return -E2BIG;
}
@@ -189,7 +183,7 @@ static void crb_cancel(struct tpm_chip *chip)
static bool crb_req_canceled(struct tpm_chip *chip, u8 status)
{
struct crb_priv *priv = chip->vendor.priv;
- u32 cancel = le32_to_cpu(ioread32(&priv->cca->cancel));
+ u32 cancel = ioread32(&priv->cca->cancel);
return (cancel & CRB_CANCEL_INVOKE) == CRB_CANCEL_INVOKE;
}
@@ -204,97 +198,145 @@ static const struct tpm_class_ops tpm_crb = {
.req_complete_val = CRB_STS_COMPLETE,
};
-static int crb_acpi_add(struct acpi_device *device)
+static int crb_init(struct acpi_device *device, struct crb_priv *priv)
{
struct tpm_chip *chip;
- struct acpi_tpm2 *buf;
+ int rc;
+
+ chip = tpmm_chip_alloc(&device->dev, &tpm_crb);
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+
+ chip->vendor.priv = priv;
+ chip->acpi_dev_handle = device->handle;
+ chip->flags = TPM_CHIP_FLAG_TPM2;
+
+ rc = tpm_get_timeouts(chip);
+ if (rc)
+ return rc;
+
+ rc = tpm2_do_selftest(chip);
+ if (rc)
+ return rc;
+
+ return tpm_chip_register(chip);
+}
+
+static int crb_check_resource(struct acpi_resource *ares, void *data)
+{
+ struct crb_priv *priv = data;
+ struct resource res;
+
+ if (acpi_dev_resource_memory(ares, &res)) {
+ priv->res = res;
+ priv->res.name = NULL;
+ }
+
+ return 1;
+}
+
+static void __iomem *crb_map_res(struct device *dev, struct crb_priv *priv,
+ u64 start, u32 size)
+{
+ struct resource new_res = {
+ .start = start,
+ .end = start + size - 1,
+ .flags = IORESOURCE_MEM,
+ };
+
+ /* Detect a 64 bit address on a 32 bit system */
+ if (start != new_res.start)
+ return ERR_PTR(-EINVAL);
+
+ if (!resource_contains(&priv->res, &new_res))
+ return devm_ioremap_resource(dev, &new_res);
+
+ return priv->iobase + (new_res.start - priv->res.start);
+}
+
+static int crb_map_io(struct acpi_device *device, struct crb_priv *priv,
+ struct acpi_table_tpm2 *buf)
+{
+ struct list_head resources;
+ struct device *dev = &device->dev;
+ u64 pa;
+ int ret;
+
+ INIT_LIST_HEAD(&resources);
+ ret = acpi_dev_get_resources(device, &resources, crb_check_resource,
+ priv);
+ if (ret < 0)
+ return ret;
+ acpi_dev_free_resource_list(&resources);
+
+ if (resource_type(&priv->res) != IORESOURCE_MEM) {
+ dev_err(dev,
+ FW_BUG "TPM2 ACPI table does not define a memory resource\n");
+ return -EINVAL;
+ }
+
+ priv->iobase = devm_ioremap_resource(dev, &priv->res);
+ if (IS_ERR(priv->iobase))
+ return PTR_ERR(priv->iobase);
+
+ priv->cca = crb_map_res(dev, priv, buf->control_address, 0x1000);
+ if (IS_ERR(priv->cca))
+ return PTR_ERR(priv->cca);
+
+ pa = ((u64) ioread32(&priv->cca->cmd_pa_high) << 32) |
+ (u64) ioread32(&priv->cca->cmd_pa_low);
+ priv->cmd = crb_map_res(dev, priv, pa, ioread32(&priv->cca->cmd_size));
+ if (IS_ERR(priv->cmd))
+ return PTR_ERR(priv->cmd);
+
+ memcpy_fromio(&pa, &priv->cca->rsp_pa, 8);
+ pa = le64_to_cpu(pa);
+ priv->rsp = crb_map_res(dev, priv, pa, ioread32(&priv->cca->rsp_size));
+ return PTR_ERR_OR_ZERO(priv->rsp);
+}
+
+static int crb_acpi_add(struct acpi_device *device)
+{
+ struct acpi_table_tpm2 *buf;
struct crb_priv *priv;
struct device *dev = &device->dev;
acpi_status status;
u32 sm;
- u64 pa;
int rc;
status = acpi_get_table(ACPI_SIG_TPM2, 1,
(struct acpi_table_header **) &buf);
- if (ACPI_FAILURE(status)) {
- dev_err(dev, "failed to get TPM2 ACPI table\n");
- return -ENODEV;
+ if (ACPI_FAILURE(status) || buf->header.length < sizeof(*buf)) {
+ dev_err(dev, FW_BUG "failed to get TPM2 ACPI table\n");
+ return -EINVAL;
}
/* Should the FIFO driver handle this? */
- if (buf->start_method == TPM2_START_FIFO)
+ sm = buf->start_method;
+ if (sm == ACPI_TPM2_MEMORY_MAPPED)
return -ENODEV;
- chip = tpmm_chip_alloc(dev, &tpm_crb);
- if (IS_ERR(chip))
- return PTR_ERR(chip);
-
- chip->flags = TPM_CHIP_FLAG_TPM2;
-
- if (buf->hdr.length < sizeof(struct acpi_tpm2)) {
- dev_err(dev, "TPM2 ACPI table has wrong size");
- return -EINVAL;
- }
-
- priv = (struct crb_priv *) devm_kzalloc(dev, sizeof(struct crb_priv),
- GFP_KERNEL);
- if (!priv) {
- dev_err(dev, "failed to devm_kzalloc for private data\n");
+ priv = devm_kzalloc(dev, sizeof(struct crb_priv), GFP_KERNEL);
+ if (!priv)
return -ENOMEM;
- }
-
- sm = le32_to_cpu(buf->start_method);
/* The reason for the extra quirk is that the PTT in 4th Gen Core CPUs
* report only ACPI start but in practice seems to require both
* ACPI start and CRB start.
*/
- if (sm == TPM2_START_CRB || sm == TPM2_START_FIFO ||
+ if (sm == ACPI_TPM2_COMMAND_BUFFER || sm == ACPI_TPM2_MEMORY_MAPPED ||
!strcmp(acpi_device_hid(device), "MSFT0101"))
priv->flags |= CRB_FL_CRB_START;
- if (sm == TPM2_START_ACPI || sm == TPM2_START_CRB_WITH_ACPI)
+ if (sm == ACPI_TPM2_START_METHOD ||
+ sm == ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD)
priv->flags |= CRB_FL_ACPI_START;
- priv->cca = (struct crb_control_area __iomem *)
- devm_ioremap_nocache(dev, buf->control_area_pa, 0x1000);
- if (!priv->cca) {
- dev_err(dev, "ioremap of the control area failed\n");
- return -ENOMEM;
- }
-
- pa = ((u64) le32_to_cpu(ioread32(&priv->cca->cmd_pa_high)) << 32) |
- (u64) le32_to_cpu(ioread32(&priv->cca->cmd_pa_low));
- priv->cmd = devm_ioremap_nocache(dev, pa,
- ioread32(&priv->cca->cmd_size));
- if (!priv->cmd) {
- dev_err(dev, "ioremap of the command buffer failed\n");
- return -ENOMEM;
- }
-
- memcpy_fromio(&pa, &priv->cca->rsp_pa, 8);
- pa = le64_to_cpu(pa);
- priv->rsp = devm_ioremap_nocache(dev, pa,
- ioread32(&priv->cca->rsp_size));
- if (!priv->rsp) {
- dev_err(dev, "ioremap of the response buffer failed\n");
- return -ENOMEM;
- }
-
- chip->vendor.priv = priv;
-
- rc = tpm_get_timeouts(chip);
+ rc = crb_map_io(device, priv, buf);
if (rc)
return rc;
- chip->acpi_dev_handle = device->handle;
-
- rc = tpm2_do_selftest(chip);
- if (rc)
- return rc;
-
- return tpm_chip_register(chip);
+ return crb_init(device, priv);
}
static int crb_acpi_remove(struct acpi_device *device)
@@ -302,11 +344,11 @@ static int crb_acpi_remove(struct acpi_device *device)
struct device *dev = &device->dev;
struct tpm_chip *chip = dev_get_drvdata(dev);
- tpm_chip_unregister(chip);
-
if (chip->flags & TPM_CHIP_FLAG_TPM2)
tpm2_shutdown(chip, TPM2_SU_CLEAR);
+ tpm_chip_unregister(chip);
+
return 0;
}
diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
index bd72fb04225e..4e6940acf639 100644
--- a/drivers/char/tpm/tpm_eventlog.c
+++ b/drivers/char/tpm/tpm_eventlog.c
@@ -232,7 +232,7 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
{
struct tcpa_event *event = v;
struct tcpa_event temp_event;
- char *tempPtr;
+ char *temp_ptr;
int i;
memcpy(&temp_event, event, sizeof(struct tcpa_event));
@@ -242,10 +242,16 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
temp_event.event_type = do_endian_conversion(event->event_type);
temp_event.event_size = do_endian_conversion(event->event_size);
- tempPtr = (char *)&temp_event;
+ temp_ptr = (char *) &temp_event;
- for (i = 0; i < sizeof(struct tcpa_event) + temp_event.event_size; i++)
- seq_putc(m, tempPtr[i]);
+ for (i = 0; i < (sizeof(struct tcpa_event) - 1) ; i++)
+ seq_putc(m, temp_ptr[i]);
+
+ temp_ptr = (char *) v;
+
+ for (i = (sizeof(struct tcpa_event) - 1);
+ i < (sizeof(struct tcpa_event) + temp_event.event_size); i++)
+ seq_putc(m, temp_ptr[i]);
return 0;
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 8a3509cb10da..a507006728e0 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -28,7 +28,6 @@
#include <linux/wait.h>
#include <linux/acpi.h>
#include <linux/freezer.h>
-#include <acpi/actbl2.h>
#include "tpm.h"
enum tis_access {
@@ -60,22 +59,18 @@ enum tis_int_flags {
};
enum tis_defaults {
- TIS_MEM_BASE = 0xFED40000,
TIS_MEM_LEN = 0x5000,
TIS_SHORT_TIMEOUT = 750, /* ms */
TIS_LONG_TIMEOUT = 2000, /* 2 sec */
};
struct tpm_info {
- unsigned long start;
- unsigned long len;
- unsigned int irq;
-};
-
-static struct tpm_info tis_default_info = {
- .start = TIS_MEM_BASE,
- .len = TIS_MEM_LEN,
- .irq = 0,
+ struct resource res;
+ /* irq > 0 means: use irq $irq;
+ * irq = 0 means: autoprobe for an irq;
+ * irq = -1 means: no irq support
+ */
+ int irq;
};
/* Some timeout values are needed before it is known whether the chip is
@@ -118,39 +113,11 @@ static inline int is_itpm(struct acpi_device *dev)
{
return has_hid(dev, "INTC0102");
}
-
-static inline int is_fifo(struct acpi_device *dev)
-{
- struct acpi_table_tpm2 *tbl;
- acpi_status st;
-
- /* TPM 1.2 FIFO */
- if (!has_hid(dev, "MSFT0101"))
- return 1;
-
- st = acpi_get_table(ACPI_SIG_TPM2, 1,
- (struct acpi_table_header **) &tbl);
- if (ACPI_FAILURE(st)) {
- dev_err(&dev->dev, "failed to get TPM2 ACPI table\n");
- return 0;
- }
-
- if (le32_to_cpu(tbl->start_method) != TPM2_START_FIFO)
- return 0;
-
- /* TPM 2.0 FIFO */
- return 1;
-}
#else
static inline int is_itpm(struct acpi_device *dev)
{
return 0;
}
-
-static inline int is_fifo(struct acpi_device *dev)
-{
- return 1;
-}
#endif
/* Before we attempt to access the TPM we must see that the valid bit is set.
@@ -716,9 +683,9 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
chip->acpi_dev_handle = acpi_dev_handle;
#endif
- chip->vendor.iobase = devm_ioremap(dev, tpm_info->start, tpm_info->len);
- if (!chip->vendor.iobase)
- return -EIO;
+ chip->vendor.iobase = devm_ioremap_resource(dev, &tpm_info->res);
+ if (IS_ERR(chip->vendor.iobase))
+ return PTR_ERR(chip->vendor.iobase);
/* Maximum timeouts */
chip->vendor.timeout_a = TIS_TIMEOUT_A_MAX;
@@ -807,7 +774,7 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
/* INTERRUPT Setup */
init_waitqueue_head(&chip->vendor.read_queue);
init_waitqueue_head(&chip->vendor.int_queue);
- if (interrupts) {
+ if (interrupts && tpm_info->irq != -1) {
if (tpm_info->irq) {
tpm_tis_probe_irq_single(chip, intmask, IRQF_SHARED,
tpm_info->irq);
@@ -893,29 +860,29 @@ static int tpm_tis_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(tpm_tis_pm, tpm_pm_suspend, tpm_tis_resume);
-#ifdef CONFIG_PNP
static int tpm_tis_pnp_init(struct pnp_dev *pnp_dev,
- const struct pnp_device_id *pnp_id)
+ const struct pnp_device_id *pnp_id)
{
- struct tpm_info tpm_info = tis_default_info;
+ struct tpm_info tpm_info = {};
acpi_handle acpi_dev_handle = NULL;
+ struct resource *res;
- tpm_info.start = pnp_mem_start(pnp_dev, 0);
- tpm_info.len = pnp_mem_len(pnp_dev, 0);
+ res = pnp_get_resource(pnp_dev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+ tpm_info.res = *res;
if (pnp_irq_valid(pnp_dev, 0))
tpm_info.irq = pnp_irq(pnp_dev, 0);
else
- interrupts = false;
+ tpm_info.irq = -1;
-#ifdef CONFIG_ACPI
if (pnp_acpi_device(pnp_dev)) {
if (is_itpm(pnp_acpi_device(pnp_dev)))
itpm = true;
- acpi_dev_handle = pnp_acpi_device(pnp_dev)->handle;
+ acpi_dev_handle = ACPI_HANDLE(&pnp_dev->dev);
}
-#endif
return tpm_tis_init(&pnp_dev->dev, &tpm_info, acpi_dev_handle);
}
@@ -956,7 +923,6 @@ static struct pnp_driver tis_pnp_driver = {
module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id,
sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444);
MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe");
-#endif
#ifdef CONFIG_ACPI
static int tpm_check_resource(struct acpi_resource *ares, void *data)
@@ -964,11 +930,11 @@ static int tpm_check_resource(struct acpi_resource *ares, void *data)
struct tpm_info *tpm_info = (struct tpm_info *) data;
struct resource res;
- if (acpi_dev_resource_interrupt(ares, 0, &res)) {
+ if (acpi_dev_resource_interrupt(ares, 0, &res))
tpm_info->irq = res.start;
- } else if (acpi_dev_resource_memory(ares, &res)) {
- tpm_info->start = res.start;
- tpm_info->len = resource_size(&res);
+ else if (acpi_dev_resource_memory(ares, &res)) {
+ tpm_info->res = res;
+ tpm_info->res.name = NULL;
}
return 1;
@@ -976,14 +942,25 @@ static int tpm_check_resource(struct acpi_resource *ares, void *data)
static int tpm_tis_acpi_init(struct acpi_device *acpi_dev)
{
+ struct acpi_table_tpm2 *tbl;
+ acpi_status st;
struct list_head resources;
- struct tpm_info tpm_info = tis_default_info;
+ struct tpm_info tpm_info = {};
int ret;
- if (!is_fifo(acpi_dev))
+ st = acpi_get_table(ACPI_SIG_TPM2, 1,
+ (struct acpi_table_header **) &tbl);
+ if (ACPI_FAILURE(st) || tbl->header.length < sizeof(*tbl)) {
+ dev_err(&acpi_dev->dev,
+ FW_BUG "failed to get TPM2 ACPI table\n");
+ return -EINVAL;
+ }
+
+ if (tbl->start_method != ACPI_TPM2_MEMORY_MAPPED)
return -ENODEV;
INIT_LIST_HEAD(&resources);
+ tpm_info.irq = -1;
ret = acpi_dev_get_resources(acpi_dev, &resources, tpm_check_resource,
&tpm_info);
if (ret < 0)
@@ -991,8 +968,11 @@ static int tpm_tis_acpi_init(struct acpi_device *acpi_dev)
acpi_dev_free_resource_list(&resources);
- if (!tpm_info.irq)
- interrupts = false;
+ if (resource_type(&tpm_info.res) != IORESOURCE_MEM) {
+ dev_err(&acpi_dev->dev,
+ FW_BUG "TPM2 ACPI table does not define a memory resource\n");
+ return -EINVAL;
+ }
if (is_itpm(acpi_dev))
itpm = true;
@@ -1031,80 +1011,135 @@ static struct acpi_driver tis_acpi_driver = {
};
#endif
+static struct platform_device *force_pdev;
+
+static int tpm_tis_plat_probe(struct platform_device *pdev)
+{
+ struct tpm_info tpm_info = {};
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "no memory resource defined\n");
+ return -ENODEV;
+ }
+ tpm_info.res = *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (res) {
+ tpm_info.irq = res->start;
+ } else {
+ if (pdev == force_pdev)
+ tpm_info.irq = -1;
+ else
+ /* When forcing auto probe the IRQ */
+ tpm_info.irq = 0;
+ }
+
+ return tpm_tis_init(&pdev->dev, &tpm_info, NULL);
+}
+
+static int tpm_tis_plat_remove(struct platform_device *pdev)
+{
+ struct tpm_chip *chip = dev_get_drvdata(&pdev->dev);
+
+ tpm_chip_unregister(chip);
+ tpm_tis_remove(chip);
+
+ return 0;
+}
+
static struct platform_driver tis_drv = {
+ .probe = tpm_tis_plat_probe,
+ .remove = tpm_tis_plat_remove,
.driver = {
.name = "tpm_tis",
.pm = &tpm_tis_pm,
},
};
-static struct platform_device *pdev;
-
static bool force;
+#ifdef CONFIG_X86
module_param(force, bool, 0444);
MODULE_PARM_DESC(force, "Force device probe rather than using ACPI entry");
+#endif
+
+static int tpm_tis_force_device(void)
+{
+ struct platform_device *pdev;
+ static const struct resource x86_resources[] = {
+ {
+ .start = 0xFED40000,
+ .end = 0xFED40000 + TIS_MEM_LEN - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ };
+
+ if (!force)
+ return 0;
+
+ /* The driver core will match the name tpm_tis of the device to
+ * the tpm_tis platform driver and complete the setup via
+ * tpm_tis_plat_probe
+ */
+ pdev = platform_device_register_simple("tpm_tis", -1, x86_resources,
+ ARRAY_SIZE(x86_resources));
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+ force_pdev = pdev;
+
+ return 0;
+}
+
static int __init init_tis(void)
{
int rc;
-#ifdef CONFIG_PNP
- if (!force) {
- rc = pnp_register_driver(&tis_pnp_driver);
- if (rc)
- return rc;
- }
-#endif
+
+ rc = tpm_tis_force_device();
+ if (rc)
+ goto err_force;
+
+ rc = platform_driver_register(&tis_drv);
+ if (rc)
+ goto err_platform;
+
#ifdef CONFIG_ACPI
- if (!force) {
- rc = acpi_bus_register_driver(&tis_acpi_driver);
- if (rc) {
-#ifdef CONFIG_PNP
- pnp_unregister_driver(&tis_pnp_driver);
-#endif
- return rc;
- }
- }
+ rc = acpi_bus_register_driver(&tis_acpi_driver);
+ if (rc)
+ goto err_acpi;
#endif
- if (!force)
- return 0;
- rc = platform_driver_register(&tis_drv);
- if (rc < 0)
- return rc;
- pdev = platform_device_register_simple("tpm_tis", -1, NULL, 0);
- if (IS_ERR(pdev)) {
- rc = PTR_ERR(pdev);
- goto err_dev;
+ if (IS_ENABLED(CONFIG_PNP)) {
+ rc = pnp_register_driver(&tis_pnp_driver);
+ if (rc)
+ goto err_pnp;
}
- rc = tpm_tis_init(&pdev->dev, &tis_default_info, NULL);
- if (rc)
- goto err_init;
+
return 0;
-err_init:
- platform_device_unregister(pdev);
-err_dev:
- platform_driver_unregister(&tis_drv);
+
+err_pnp:
+#ifdef CONFIG_ACPI
+ acpi_bus_unregister_driver(&tis_acpi_driver);
+err_acpi:
+#endif
+ platform_device_unregister(force_pdev);
+err_platform:
+ if (force_pdev)
+ platform_device_unregister(force_pdev);
+err_force:
return rc;
}
static void __exit cleanup_tis(void)
{
- struct tpm_chip *chip;
-#if defined(CONFIG_PNP) || defined(CONFIG_ACPI)
- if (!force) {
+ pnp_unregister_driver(&tis_pnp_driver);
#ifdef CONFIG_ACPI
- acpi_bus_unregister_driver(&tis_acpi_driver);
-#endif
-#ifdef CONFIG_PNP
- pnp_unregister_driver(&tis_pnp_driver);
+ acpi_bus_unregister_driver(&tis_acpi_driver);
#endif
- return;
- }
-#endif
- chip = dev_get_drvdata(&pdev->dev);
- tpm_chip_unregister(chip);
- tpm_tis_remove(chip);
- platform_device_unregister(pdev);
platform_driver_unregister(&tis_drv);
+
+ if (force_pdev)
+ platform_device_unregister(force_pdev);
}
module_init(init_tis);
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index a15ce4ef39cd..b098d2d0b7c4 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -171,7 +171,7 @@ static const struct tty_operations ttyprintk_ops = {
.ioctl = tpk_ioctl,
};
-static struct tty_port_operations null_ops = { };
+static const struct tty_port_operations null_ops = { };
static struct tty_driver *ttyprintk_driver;
diff --git a/drivers/char/xillybus/xillybus_core.c b/drivers/char/xillybus/xillybus_core.c
index 77d6c127e691..dcd19f3f182e 100644
--- a/drivers/char/xillybus/xillybus_core.c
+++ b/drivers/char/xillybus/xillybus_core.c
@@ -509,7 +509,7 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
channel->log2_element_size = ((format > 2) ?
2 : format);
- bytebufsize = channel->rd_buf_size = bufsize *
+ bytebufsize = bufsize *
(1 << channel->log2_element_size);
buffers = devm_kcalloc(dev, bufnum,
@@ -523,6 +523,7 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
if (!is_writebuf) {
channel->num_rd_buffers = bufnum;
+ channel->rd_buf_size = bytebufsize;
channel->rd_allow_partial = allowpartial;
channel->rd_synchronous = synchronous;
channel->rd_exclusive_open = exclusive_open;
@@ -533,6 +534,7 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
bufnum, bytebufsize);
} else if (channelnum > 0) {
channel->num_wr_buffers = bufnum;
+ channel->wr_buf_size = bytebufsize;
channel->seekable = seekable;
channel->wr_supports_nonempty = supports_nonempty;
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