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- Bug Fixes

Browse Source 
- Fix message timing	issues;
       cros_ec_spi
   - Report correct state when an error	occurs;
       cros_ec_spi
   - Reorder enums used	for Power Management;
       rtsx_pci
   - Use correct OF helper for obtaining child nodes;
       twl4030-audio, twl6040
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Merge tag 'mfd-fixes-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MDF bugfixes from Lee Jones:

  - Fix message timing issues and report correct state when an error
    occurs in cros_ec_spi

  - Reorder enums used for Power Management in rtsx_pci

  - Use correct OF helper for obtaining child nodes in twl4030-audio and
    twl6040

* tag 'mfd-fixes-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: Fix RTS5227 (and others) powermanagement
  mfd: cros ec: spi: Fix "in progress" error signaling
  mfd: twl6040: Fix child-node lookup
  mfd: twl4030-audio: Fix sibling-node lookup
  mfd: cros ec: spi: Don't send first message too soon
This commit is contained in:
Linus Torvalds 2017-12-20 13:35:10 -08:00
commit 444fec197e
4 changed files with 41 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
drivers/mfd/cros_ec_spi.c
View File

@ -377,6 +377,7 @@ static int cros_ec_pkt_xfer_spi(struct cros_ec_device *ec_dev,
u8 *ptr;
u8 *rx_buf;
u8 sum;
u8 rx_byte;
int ret = 0, final_ret;
len = cros_ec_prepare_tx(ec_dev, ec_msg);
@ -421,25 +422,22 @@ static int cros_ec_pkt_xfer_spi(struct cros_ec_device *ec_dev,
if (!ret) {
/* Verify that EC can process command */
for (i = 0; i < len; i++) {
switch (rx_buf[i]) {
case EC_SPI_PAST_END:
case EC_SPI_RX_BAD_DATA:
case EC_SPI_NOT_READY:
ret = -EAGAIN;
ec_msg->result = EC_RES_IN_PROGRESS;
default:
rx_byte = rx_buf[i];
if (rx_byte == EC_SPI_PAST_END ||
rx_byte == EC_SPI_RX_BAD_DATA ||
rx_byte == EC_SPI_NOT_READY) {
ret = -EREMOTEIO;
break;
}
if (ret)
break;
}
if (!ret)
ret = cros_ec_spi_receive_packet(ec_dev,
ec_msg->insize + sizeof(*response));
} else {
dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
}
if (!ret)
ret = cros_ec_spi_receive_packet(ec_dev,
ec_msg->insize + sizeof(*response));
else
dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
final_ret = terminate_request(ec_dev);
spi_bus_unlock(ec_spi->spi->master);
@ -508,6 +506,7 @@ static int cros_ec_cmd_xfer_spi(struct cros_ec_device *ec_dev,
int i, len;
u8 *ptr;
u8 *rx_buf;
u8 rx_byte;
int sum;
int ret = 0, final_ret;
@ -544,25 +543,22 @@ static int cros_ec_cmd_xfer_spi(struct cros_ec_device *ec_dev,
if (!ret) {
/* Verify that EC can process command */
for (i = 0; i < len; i++) {
switch (rx_buf[i]) {
case EC_SPI_PAST_END:
case EC_SPI_RX_BAD_DATA:
case EC_SPI_NOT_READY:
ret = -EAGAIN;
ec_msg->result = EC_RES_IN_PROGRESS;
default:
rx_byte = rx_buf[i];
if (rx_byte == EC_SPI_PAST_END ||
rx_byte == EC_SPI_RX_BAD_DATA ||
rx_byte == EC_SPI_NOT_READY) {
ret = -EREMOTEIO;
break;
}
if (ret)
break;
}
if (!ret)
ret = cros_ec_spi_receive_response(ec_dev,
ec_msg->insize + EC_MSG_TX_PROTO_BYTES);
} else {
dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
}
if (!ret)
ret = cros_ec_spi_receive_response(ec_dev,
ec_msg->insize + EC_MSG_TX_PROTO_BYTES);
else
dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
final_ret = terminate_request(ec_dev);
spi_bus_unlock(ec_spi->spi->master);
@ -667,6 +663,7 @@ static int cros_ec_spi_probe(struct spi_device *spi)
sizeof(struct ec_response_get_protocol_info);
ec_dev->dout_size = sizeof(struct ec_host_request);
ec_spi->last_transfer_ns = ktime_get_ns();
err = cros_ec_register(ec_dev);
if (err) {

9
drivers/mfd/twl4030-audio.c
View File

@ -159,13 +159,18 @@ unsigned int twl4030_audio_get_mclk(void)
EXPORT_SYMBOL_GPL(twl4030_audio_get_mclk);
static bool twl4030_audio_has_codec(struct twl4030_audio_data *pdata,
struct device_node *node)
struct device_node *parent)
{
struct device_node *node;
if (pdata && pdata->codec)
return true;
if (of_find_node_by_name(node, "codec"))
node = of_get_child_by_name(parent, "codec");
if (node) {
of_node_put(node);
return true;
}
return false;
}

12
drivers/mfd/twl6040.c
View File

@ -97,12 +97,16 @@ static struct reg_sequence twl6040_patch[] = {
};
static bool twl6040_has_vibra(struct device_node *node)
static bool twl6040_has_vibra(struct device_node *parent)
{
#ifdef CONFIG_OF
if (of_find_node_by_name(node, "vibra"))
struct device_node *node;
node = of_get_child_by_name(parent, "vibra");
if (node) {
of_node_put(node);
return true;
#endif
}
return false;
}

2
include/linux/mfd/rtsx_pci.h
View File

@ -915,10 +915,10 @@ enum PDEV_STAT {PDEV_STAT_IDLE, PDEV_STAT_RUN};
#define LTR_L1SS_PWR_GATE_CHECK_CARD_EN BIT(6)
enum dev_aspm_mode {
DEV_ASPM_DISABLE = 0,
DEV_ASPM_DYNAMIC,
DEV_ASPM_BACKDOOR,
DEV_ASPM_STATIC,
DEV_ASPM_DISABLE,
};
/*