| From: |
| Kamal Dasu <kamal.dasu-AT-broadcom.com> |
| To: |
| peng.fan-AT-oss.nxp.com, andersson-AT-kernel.org, baolin.wang-AT-linux.alibaba.com, robh-AT-kernel.org, krzk+dt-AT-kernel.org, conor+dt-AT-kernel.org, florian.fainelli-AT-broadcom.com |
| Subject: |
| [PATCH v3 0/3] Adding brcmstb-hwspinlock support |
| Date: |
| Thu, 09 Oct 2025 17:20:00 -0400 |
| Message-ID: |
| <20251009212003.2714447-1-kamal.dasu@broadcom.com> |
| Cc: |
| bcm-kernel-feedback-list-AT-broadcom.com, linux-remoteproc-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, linux-arm-kernel-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, Kamal Dasu <kamal.dasu-AT-broadcom.com> |
| Archive-link: |
| Article |
This is a standalone patch for the hardware semaphore feature for
all brcmstb SoCs that have the same hardware semaphore registers
hence platform driver compatible uses:
'.compatible = "brcm,brcmstb-hwspinlock"'
The patch has been tested to work as builtin as well as a module.
v3 changes:
Added detailed explantion in the all commit messages as per review
comments
- Added description of 'sundry' ip block that the hardware semaphore
belongs to
- Added reasoning for using '.compatible = "brcm,brcmstb-hwspinlock"
v2 changes:
Adressed following review comments:
- fixed ordering of obj brcmstb_hwspinlock.o in Makefile
- fixed ordering of 'config HWSPINLOCK_BRCMSTB' block in Kconfig
- Renamed BRCMSTB_MAX_SEMAPHORES to BRCMSTB_NUM_SEMAPHORES
- Removed unnecessary platfrom_set_drvdata(pdev, bank);
Also addressing duplicate PATCH 1/3 sent in error as part of v1 change.
v1 changes:
based on fixes made to Initial patch :
url: https://github.com/intel-lab-lkp/linux/commits/Kamal-Dasu...
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linu... for-next
patch link: https://lore.kernel.org/r/20250711154221.928164-4-kamal.d...
patch subject: [PATCH 2/4] hwspinlock: brcmstb hardware semaphore support
All the review comments and build warning have been fixed.
Kamal Dasu (3):
dt-bindings: hwlock: Adding brcmstb-hwspinlock support
hwspinlock: brcmstb hardware semaphore support
MAINTAINERS: adding entry for BRCMSTB HWSPINLOCK driver
.../hwlock/brcm,brcmstb-hwspinlock.yaml | 36 +++++++
MAINTAINERS | 8 ++
drivers/hwspinlock/Kconfig | 11 ++-
drivers/hwspinlock/Makefile | 1 +
drivers/hwspinlock/brcmstb_hwspinlock.c | 96 +++++++++++++++++++
5 files changed, 151 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/hwlock/brcm,brcmstb-hwspinlock.yaml
create mode 100644 drivers/hwspinlock/brcmstb_hwspinlock.c
--
2.34.1
