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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-28 21:27:35 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-28 21:27:35 +0200 |
commit | 02e2af20f4f9f2aa0c84e9a30a35c02f0fbb7daa (patch) | |
tree | d126449a7d2ea2270627183f7cebd726fbe56a9d /drivers/fsi/fsi-scom.c | |
parent | Merge tag 'pinctrl-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff) | |
parent | firmware: google: Properly state IOMEM dependency (diff) | |
download | linux-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.c | 45 |
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); |