linux-stable.git/drivers/ptp, branch v5.12.2

ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation

2021-03-24T19:10:03+00:00

Current calculation for diff of TMR_ADD register value may have
64-bit overflow in this code line, when long type scaled_ppm is
large.

adj *= scaled_ppm;

This patch is to resolve it by using mul_u64_u64_div_u64().

Signed-off-by: Yangbo Lu 
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary

2021-02-17T21:49:26+00:00

Code clean-up.

Signed-off-by: Vincent Cheng 
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: Simplify code - remove unnecessary `err` variable.

2021-02-17T21:49:26+00:00

Code clean-up.

Signed-off-by: Vincent Cheng 
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: Coding style - tighten vertical spacing.

2021-02-17T21:49:26+00:00

Code clean-up.

* Remove blank line between variable declarations.
* Remove blank line between:
	err = blah(...)

	if (err)
		...
* Remove unnecessary blank line before/after loop constructs.

Signed-off-by: Vincent Cheng 
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: Clean-up dev_*() messages.

2021-02-17T21:49:26+00:00

Code clean-up.

* Remove unnecessary \n termination from dev_*() messages.
* Remove 'char *fmt' to define strings to stay within 80 column
  limit.  Not needed since coding guidelines increased to
  100 columns limit.
  Keeping format in place allows static code checkers to
  validate the arguments.
* Tighten up vertical spacing.

Signed-off-by: Vincent Cheng 
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: Remove unused header declarations.

2021-02-17T21:49:25+00:00

Removed unused header declarations.

Signed-off-by: Vincent Cheng 
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.

2021-02-17T21:49:25+00:00

When enabling output using PTP_CLK_REQ_PEROUT, need to align the output
clock to the internal 1 PPS clock.

Signed-off-by: Vincent Cheng 
Acked-by: Richard Cochran 
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: Add wait_for_sys_apll_dpll_lock.

2021-02-17T21:49:25+00:00

Part of the device initialization aligns the rising edge of the output
clock to the internal 1 PPS clock. If the system APLL and DPLL is not
locked, then the alignment will fail and there will be a fixed offset
between the internal 1 PPS clock and the output clock.

After loading the device firmware, poll the system APLL and DPLL for
locked state prior to initialization, timing out after 2 seconds.

Signed-off-by: Vincent Cheng 
Acked-by: Richard Cochran 
Signed-off-by: David S. Miller

ptp: ptp_ines: prevent build when HAS_IOMEM is not set

2021-01-07T00:17:23+00:00

ptp_ines.c uses devm_platform_ioremap_resource(), which is only
built/available when CONFIG_HAS_IOMEM is enabled.
CONFIG_HAS_IOMEM is not enabled for arch/s390/, so builds on S390
have a build error:

s390-linux-ld: drivers/ptp/ptp_ines.o: in function `ines_ptp_ctrl_probe':
ptp_ines.c:(.text+0x17e6): undefined reference to `devm_platform_ioremap_resource'

Prevent builds of ptp_ines.c when HAS_IOMEM is not set.

Fixes: bad1eaa6ac31 ("ptp: Add a driver for InES time stamping IP core.")
Signed-off-by: Randy Dunlap 
Reported-by: kernel test robot 
Link: lore.kernel.org/r/202101031125.ZEFCUiKi-lkp@intel.com
Acked-by: Richard Cochran 
Link: https://lore.kernel.org/r/20210106042531.1351-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski

phy: dp83640: select CONFIG_CRC32

2021-01-05T23:50:36+00:00

Without crc32, this driver fails to link:

arm-linux-gnueabi-ld: drivers/net/phy/dp83640.o: in function `match':
dp83640.c:(.text+0x476c): undefined reference to `crc32_le'

Fixes: 539e44d26855 ("dp83640: Include hash in timestamp/packet matching")
Signed-off-by: Arnd Bergmann 
Reviewed-by: Andrew Lunn 
Acked-by: Richard Cochran 
Signed-off-by: David S. Miller