summaryrefslogtreecommitdiff
path: root/drivers/misc
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/atmel-ssc.c4
-rw-r--r--drivers/misc/cardreader/rts5261.c2
-rw-r--r--drivers/misc/eeprom/at25.c93
-rw-r--r--drivers/misc/mei/hbm.c3
-rw-r--r--drivers/misc/mei/hw-me-regs.h2
-rw-r--r--drivers/misc/mei/hw-me.c2
-rw-r--r--drivers/misc/mei/pci-me.c2
7 files changed, 65 insertions, 43 deletions
diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index d6cd5537126c..69f9b0336410 100644
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -232,9 +232,9 @@ static int ssc_probe(struct platform_device *pdev)
clk_disable_unprepare(ssc->clk);
ssc->irq = platform_get_irq(pdev, 0);
- if (!ssc->irq) {
+ if (ssc->irq < 0) {
dev_dbg(&pdev->dev, "could not get irq\n");
- return -ENXIO;
+ return ssc->irq;
}
mutex_lock(&user_lock);
diff --git a/drivers/misc/cardreader/rts5261.c b/drivers/misc/cardreader/rts5261.c
index 749cc5a46d13..b1e76030cafd 100644
--- a/drivers/misc/cardreader/rts5261.c
+++ b/drivers/misc/cardreader/rts5261.c
@@ -407,6 +407,8 @@ static void rts5261_init_from_hw(struct rtsx_pcr *pcr)
// default
setting_reg1 = PCR_SETTING_REG1;
setting_reg2 = PCR_SETTING_REG2;
+ } else {
+ return;
}
pci_read_config_dword(pdev, setting_reg2, &lval2);
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 8d169a35cf13..c9c56fd194c1 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -79,6 +79,11 @@ static int at25_ee_read(void *priv, unsigned int offset,
{
struct at25_data *at25 = priv;
char *buf = val;
+ size_t max_chunk = spi_max_transfer_size(at25->spi);
+ size_t num_msgs = DIV_ROUND_UP(count, max_chunk);
+ size_t nr_bytes = 0;
+ unsigned int msg_offset;
+ size_t msg_count;
u8 *cp;
ssize_t status;
struct spi_transfer t[2];
@@ -92,54 +97,59 @@ static int at25_ee_read(void *priv, unsigned int offset,
if (unlikely(!count))
return -EINVAL;
- cp = at25->command;
+ msg_offset = (unsigned int)offset;
+ msg_count = min(count, max_chunk);
+ while (num_msgs) {
+ cp = at25->command;
- instr = AT25_READ;
- if (at25->chip.flags & EE_INSTR_BIT3_IS_ADDR)
- if (offset >= BIT(at25->addrlen * 8))
- instr |= AT25_INSTR_BIT3;
+ instr = AT25_READ;
+ if (at25->chip.flags & EE_INSTR_BIT3_IS_ADDR)
+ if (msg_offset >= BIT(at25->addrlen * 8))
+ instr |= AT25_INSTR_BIT3;
- mutex_lock(&at25->lock);
+ mutex_lock(&at25->lock);
- *cp++ = instr;
-
- /* 8/16/24-bit address is written MSB first */
- switch (at25->addrlen) {
- default: /* case 3 */
- *cp++ = offset >> 16;
- fallthrough;
- case 2:
- *cp++ = offset >> 8;
- fallthrough;
- case 1:
- case 0: /* can't happen: for better code generation */
- *cp++ = offset >> 0;
- }
+ *cp++ = instr;
- spi_message_init(&m);
- memset(t, 0, sizeof(t));
+ /* 8/16/24-bit address is written MSB first */
+ switch (at25->addrlen) {
+ default: /* case 3 */
+ *cp++ = msg_offset >> 16;
+ fallthrough;
+ case 2:
+ *cp++ = msg_offset >> 8;
+ fallthrough;
+ case 1:
+ case 0: /* can't happen: for better code generation */
+ *cp++ = msg_offset >> 0;
+ }
- t[0].tx_buf = at25->command;
- t[0].len = at25->addrlen + 1;
- spi_message_add_tail(&t[0], &m);
+ spi_message_init(&m);
+ memset(t, 0, sizeof(t));
- t[1].rx_buf = buf;
- t[1].len = count;
- spi_message_add_tail(&t[1], &m);
+ t[0].tx_buf = at25->command;
+ t[0].len = at25->addrlen + 1;
+ spi_message_add_tail(&t[0], &m);
- /*
- * Read it all at once.
- *
- * REVISIT that's potentially a problem with large chips, if
- * other devices on the bus need to be accessed regularly or
- * this chip is clocked very slowly.
- */
- status = spi_sync(at25->spi, &m);
- dev_dbg(&at25->spi->dev, "read %zu bytes at %d --> %zd\n",
- count, offset, status);
+ t[1].rx_buf = buf + nr_bytes;
+ t[1].len = msg_count;
+ spi_message_add_tail(&t[1], &m);
- mutex_unlock(&at25->lock);
- return status;
+ status = spi_sync(at25->spi, &m);
+
+ mutex_unlock(&at25->lock);
+
+ if (status)
+ return status;
+
+ --num_msgs;
+ msg_offset += msg_count;
+ nr_bytes += msg_count;
+ }
+
+ dev_dbg(&at25->spi->dev, "read %zu bytes at %d\n",
+ count, offset);
+ return 0;
}
/* Read extra registers as ID or serial number */
@@ -190,6 +200,7 @@ ATTRIBUTE_GROUPS(sernum);
static int at25_ee_write(void *priv, unsigned int off, void *val, size_t count)
{
struct at25_data *at25 = priv;
+ size_t maxsz = spi_max_transfer_size(at25->spi);
const char *buf = val;
int status = 0;
unsigned buf_size;
@@ -253,6 +264,8 @@ static int at25_ee_write(void *priv, unsigned int off, void *val, size_t count)
segment = buf_size - (offset % buf_size);
if (segment > count)
segment = count;
+ if (segment > maxsz)
+ segment = maxsz;
memcpy(cp, buf, segment);
status = spi_write(at25->spi, bounce,
segment + at25->addrlen + 1);
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index cebcca6d6d3e..cf2b8261da14 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -1351,7 +1351,8 @@ int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
if (dev->dev_state != MEI_DEV_INIT_CLIENTS ||
dev->hbm_state != MEI_HBM_CAP_SETUP) {
- if (dev->dev_state == MEI_DEV_POWER_DOWN) {
+ if (dev->dev_state == MEI_DEV_POWER_DOWN ||
+ dev->dev_state == MEI_DEV_POWERING_DOWN) {
dev_dbg(dev->dev, "hbm: capabilities response: on shutdown, ignoring\n");
return 0;
}
diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
index 64ce3f830262..15e8e2b322b1 100644
--- a/drivers/misc/mei/hw-me-regs.h
+++ b/drivers/misc/mei/hw-me-regs.h
@@ -109,6 +109,8 @@
#define MEI_DEV_ID_ADP_P 0x51E0 /* Alder Lake Point P */
#define MEI_DEV_ID_ADP_N 0x54E0 /* Alder Lake Point N */
+#define MEI_DEV_ID_RPL_S 0x7A68 /* Raptor Lake Point S */
+
/*
* MEI HW Section
*/
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 9870bf717979..befa491e3344 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -1154,6 +1154,8 @@ static int mei_me_hw_reset(struct mei_device *dev, bool intr_enable)
ret = mei_me_d0i3_exit_sync(dev);
if (ret)
return ret;
+ } else {
+ hw->pg_state = MEI_PG_OFF;
}
}
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 33e58821e478..5435604327a7 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -116,6 +116,8 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
{MEI_PCI_DEVICE(MEI_DEV_ID_ADP_P, MEI_ME_PCH15_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_ADP_N, MEI_ME_PCH15_CFG)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_RPL_S, MEI_ME_PCH15_CFG)},
+
/* required last entry */
{0, }
};
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-25 02:58:14 +0000