Exynos850 WDT IP-core differs a bit from existing platforms:
- Another set of PMU registers
- Separate WDT instance for each CPU cluster, having different PMU
registers/bits
- Source clock is different from PCLK
Implement all missing features above and enable Exynos850 WDT support.
While at it, do a bit of cleaning up.
Changes in v3:
- Renamed "samsung,index" property to more descriptive
"samsung,cluster-index"
- bindings: Disabled "samsung,cluster-index" property for SoCs other
than Exynos850
- Added quirks documentation
- Removed has_src_clk field: clk framework can handle NULL clk; added
s3c2410wdt_get_freq() function instead, to figure out which clock to
use for getting the rate
- Used pre-defined and completely set driver data for cluster0 and
cluster1
- Coding style changes
- Added R-b tags
Changes in v2:
- Added patch to fail probe if no valid timeout was found, as
suggested by Guenter Roeck (03/12)
- Extracted code for separating disable/mask functions into separate
patch (06/12)
- Added patch for inverting mask register value (07/12)
- Extracted PMU cleanup code to separate patch, to ease the review and
porting (09/12)
- Added patch for removing not needed 'err' label in probe function
(11/12)
- Addressed all outstanding review comments on mailing list
Sam Protsenko (12):
dt-bindings: watchdog: Require samsung,syscon-phandle for Exynos7
dt-bindings: watchdog: Document Exynos850 watchdog bindings
watchdog: s3c2410: Fail probe if can't find valid timeout
watchdog: s3c2410: Let kernel kick watchdog
watchdog: s3c2410: Make reset disable register optional
watchdog: s3c2410: Extract disable and mask code into separate
functions
watchdog: s3c2410: Implement a way to invert mask reg value
watchdog: s3c2410: Add support for WDT counter enable register
watchdog: s3c2410: Cleanup PMU related code
watchdog: s3c2410: Support separate source clock
watchdog: s3c2410: Remove superfluous err label
watchdog: s3c2410: Add Exynos850 support
.../bindings/watchdog/samsung-wdt.yaml | 48 ++-
drivers/watchdog/s3c2410_wdt.c | 322 +++++++++++++-----
2 files changed, 287 insertions(+), 83 deletions(-)
--
2.30.2
