summaryrefslogtreecommitdiffstats
path: root/drivers/fsi/fsi-scom.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-28 21:27:35 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-28 21:27:35 +0200
commit02e2af20f4f9f2aa0c84e9a30a35c02f0fbb7daa (patch)
treed126449a7d2ea2270627183f7cebd726fbe56a9d /drivers/fsi/fsi-scom.c
parentMerge tag 'pinctrl-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
parentfirmware: google: Properly state IOMEM dependency (diff)
downloadlinux-02e2af20f4f9f2aa0c84e9a30a35c02f0fbb7daa.tar.xz
linux-02e2af20f4f9f2aa0c84e9a30a35c02f0fbb7daa.zip
Merge tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem updates for 5.18-rc1. Included in here are merges from driver subsystems which contain: - iio driver updates and new drivers - fsi driver updates - fpga driver updates - habanalabs driver updates and support for new hardware - soundwire driver updates and new drivers - phy driver updates and new drivers - coresight driver updates - icc driver updates Individual changes include: - mei driver updates - interconnect driver updates - new PECI driver subsystem added - vmci driver updates - lots of tiny misc/char driver updates All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (556 commits) firmware: google: Properly state IOMEM dependency kgdbts: fix return value of __setup handler firmware: sysfb: fix platform-device leak in error path firmware: stratix10-svc: add missing callback parameter on RSU arm64: dts: qcom: add non-secure domain property to fastrpc nodes misc: fastrpc: Add dma handle implementation misc: fastrpc: Add fdlist implementation misc: fastrpc: Add helper function to get list and page misc: fastrpc: Add support to secure memory map dt-bindings: misc: add fastrpc domain vmid property misc: fastrpc: check before loading process to the DSP misc: fastrpc: add secure domain support dt-bindings: misc: add property to support non-secure DSP misc: fastrpc: Add support to get DSP capabilities misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP misc: fastrpc: separate fastrpc device from channel context dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells dt-bindings: nvmem: make "reg" property optional nvmem: brcm_nvram: parse NVRAM content into NVMEM cells nvmem: dt-bindings: Fix the error of dt-bindings check ...
Diffstat (limited to 'drivers/fsi/fsi-scom.c')
-rw-r--r--drivers/fsi/fsi-scom.c45
1 files changed, 17 insertions, 28 deletions
diff --git a/drivers/fsi/fsi-scom.c b/drivers/fsi/fsi-scom.c
index da1486bb6a14..bcb756dc9866 100644
--- a/drivers/fsi/fsi-scom.c
+++ b/drivers/fsi/fsi-scom.c
@@ -145,7 +145,7 @@ static int put_indirect_scom_form0(struct scom_device *scom, uint64_t value,
uint64_t addr, uint32_t *status)
{
uint64_t ind_data, ind_addr;
- int rc, retries, err = 0;
+ int rc, err;
if (value & ~XSCOM_DATA_IND_DATA)
return -EINVAL;
@@ -156,19 +156,14 @@ static int put_indirect_scom_form0(struct scom_device *scom, uint64_t value,
if (rc || (*status & SCOM_STATUS_ANY_ERR))
return rc;
- for (retries = 0; retries < SCOM_MAX_IND_RETRIES; retries++) {
- rc = __get_scom(scom, &ind_data, addr, status);
- if (rc || (*status & SCOM_STATUS_ANY_ERR))
- return rc;
+ rc = __get_scom(scom, &ind_data, addr, status);
+ if (rc || (*status & SCOM_STATUS_ANY_ERR))
+ return rc;
- err = (ind_data & XSCOM_DATA_IND_ERR_MASK) >> XSCOM_DATA_IND_ERR_SHIFT;
- *status = err << SCOM_STATUS_PIB_RESP_SHIFT;
- if ((ind_data & XSCOM_DATA_IND_COMPLETE) || (err != SCOM_PIB_BLOCKED))
- return 0;
+ err = (ind_data & XSCOM_DATA_IND_ERR_MASK) >> XSCOM_DATA_IND_ERR_SHIFT;
+ *status = err << SCOM_STATUS_PIB_RESP_SHIFT;
- msleep(1);
- }
- return rc;
+ return 0;
}
static int put_indirect_scom_form1(struct scom_device *scom, uint64_t value,
@@ -188,7 +183,7 @@ static int get_indirect_scom_form0(struct scom_device *scom, uint64_t *value,
uint64_t addr, uint32_t *status)
{
uint64_t ind_data, ind_addr;
- int rc, retries, err = 0;
+ int rc, err;
ind_addr = addr & XSCOM_ADDR_DIRECT_PART;
ind_data = (addr & XSCOM_ADDR_INDIRECT_PART) | XSCOM_DATA_IND_READ;
@@ -196,21 +191,15 @@ static int get_indirect_scom_form0(struct scom_device *scom, uint64_t *value,
if (rc || (*status & SCOM_STATUS_ANY_ERR))
return rc;
- for (retries = 0; retries < SCOM_MAX_IND_RETRIES; retries++) {
- rc = __get_scom(scom, &ind_data, addr, status);
- if (rc || (*status & SCOM_STATUS_ANY_ERR))
- return rc;
-
- err = (ind_data & XSCOM_DATA_IND_ERR_MASK) >> XSCOM_DATA_IND_ERR_SHIFT;
- *status = err << SCOM_STATUS_PIB_RESP_SHIFT;
- *value = ind_data & XSCOM_DATA_IND_DATA;
+ rc = __get_scom(scom, &ind_data, addr, status);
+ if (rc || (*status & SCOM_STATUS_ANY_ERR))
+ return rc;
- if ((ind_data & XSCOM_DATA_IND_COMPLETE) || (err != SCOM_PIB_BLOCKED))
- return 0;
+ err = (ind_data & XSCOM_DATA_IND_ERR_MASK) >> XSCOM_DATA_IND_ERR_SHIFT;
+ *status = err << SCOM_STATUS_PIB_RESP_SHIFT;
+ *value = ind_data & XSCOM_DATA_IND_DATA;
- msleep(1);
- }
- return rc;
+ return 0;
}
static int raw_put_scom(struct scom_device *scom, uint64_t value,
@@ -289,7 +278,7 @@ static int put_scom(struct scom_device *scom, uint64_t value,
int rc;
rc = raw_put_scom(scom, value, addr, &status);
- if (rc == -ENODEV)
+ if (rc)
return rc;
rc = handle_fsi2pib_status(scom, status);
@@ -308,7 +297,7 @@ static int get_scom(struct scom_device *scom, uint64_t *value,
int rc;
rc = raw_get_scom(scom, value, addr, &status);
- if (rc == -ENODEV)
+ if (rc)
return rc;
rc = handle_fsi2pib_status(scom, status);