Sakari Ailus 482e75e7b3
media: ccs-pll: Avoid overflow in pre-PLL divisor lower bound search ...
The external clock frequency times the PLL multiplier may exceed the value
range of 32-bit unsigned integers. Instead perform the same calculation y
using two divisions.
The result has some potential to be different, but that's ok: this number
is used to limit the range of pre-PLL divisors to find optimal values. So
the effect of the rare case of a different result here would mean an
invalid pre-PLL divisor is tried. That will be found out a little later in
any case.
Also guard against dividing by zero if the external clock frequency is
higher than the maximum OP PLL output clock --- a rather improbable case.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com >
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org >
2020-12-07 15:49:32 +01:00
2020-11-22 11:52:10 -08:00
2020-11-27 10:44:59 -08:00
2020-10-17 15:05:30 -06:00
2020-10-30 14:51:01 -07:00
2020-11-18 16:42:07 -08:00
2020-11-02 18:14:07 +01:00
2020-10-01 16:23:50 +03:00
2020-11-12 13:59:04 -07:00
2020-10-30 16:57:41 -05:00
2020-11-19 11:05:48 +02:00
2020-11-15 10:15:17 -08:00
2020-11-04 17:13:12 -08:00
2020-10-25 14:51:49 -07:00
2020-11-01 17:17:31 +00:00
2020-11-23 12:55:01 +01:00
2020-11-16 13:24:32 +01:00
2020-10-28 11:41:15 -06:00
2020-11-22 10:48:22 -08:00
2020-09-29 17:50:10 +09:00
2020-11-20 10:23:49 -08:00
2020-10-15 14:43:29 -07:00
2020-10-12 13:26:49 -07:00
2020-09-30 00:40:06 +09:00
2020-09-25 06:20:48 +02:00
2020-11-29 10:18:53 -08:00
2020-11-11 09:53:09 +01:00
2020-11-27 09:39:51 +10:00
2020-11-22 14:36:06 -08:00
2020-11-16 15:02:33 -08:00
2020-11-13 06:46:20 -08:00
2020-10-29 20:10:25 +01:00
2020-11-06 16:02:00 +01:00
2020-10-17 11:01:01 -07:00
2020-10-13 12:12:44 -07:00
2020-11-24 16:47:36 +01:00
2020-11-14 17:33:47 +00:00
2020-11-26 10:57:32 -04:00
2020-11-17 12:00:40 -08:00
2020-11-20 16:01:35 +02:00
2020-11-27 10:41:19 -08:00
2020-11-25 00:56:28 +01:00
2020-10-07 12:02:58 +02:00
2020-10-16 09:28:45 -06:00
2020-10-16 12:21:15 -07:00
2020-10-24 10:39:22 -07:00
2020-10-14 15:05:38 -07:00
2020-12-07 15:49:32 +01:00
2020-10-24 10:39:22 -07:00
2020-09-28 12:17:36 +02:00
2020-10-26 16:57:18 -04:00
2020-10-14 15:56:58 -07:00
2020-11-23 20:08:43 +02:00
2020-11-17 12:44:44 +01:00
2020-11-20 12:31:26 +01:00
2020-11-27 10:49:20 +01:00
2020-11-24 15:00:53 -08:00
2020-10-25 11:12:31 -07:00
2020-10-13 18:38:28 -07:00
2020-11-14 09:57:55 +01:00
2020-09-27 14:25:48 +02:00
2020-11-11 17:10:16 -06:00
2020-10-27 13:21:03 +05:30
2020-10-06 07:07:03 +02:00
2020-11-04 13:55:30 -06:00
2020-09-25 06:12:15 +02:00
2020-10-01 22:30:07 +01:00
2020-11-16 13:21:28 +05:30
2020-11-10 15:35:41 +01:00
2020-11-26 15:49:16 +01:00
2020-10-27 19:23:04 +01:00
2020-10-24 10:33:08 -07:00
2020-11-10 10:02:31 -08:00
2020-11-25 17:24:49 -08:00
2020-10-24 10:33:08 -07:00
2020-10-16 11:11:22 -07:00
2020-09-25 19:05:31 +02:00
2020-11-18 17:59:24 +00:00
2020-10-22 12:56:33 -07:00
2020-10-24 10:39:22 -07:00
2020-10-22 12:58:21 -07:00
2020-10-21 11:22:08 -07:00
2020-11-27 14:38:02 -08:00
2020-11-27 14:06:23 -08:00
2020-09-25 14:41:51 +02:00
2020-11-26 22:07:22 +01:00
2020-10-01 22:59:55 +02:00
2020-11-25 12:54:05 +00:00
2020-12-07 15:00:43 +01:00
2020-11-20 16:24:28 -08:00
2020-11-27 14:48:03 -08:00
2020-11-12 12:30:29 +01:00
2020-11-06 16:39:11 +03:00
2020-11-12 09:41:07 +01:00
2020-11-09 18:54:30 +01:00
2020-11-27 14:44:26 +01:00
2020-11-16 14:58:23 -08:00
2020-11-03 11:07:40 -07:00
2020-11-15 17:30:55 -05:00
2020-11-23 15:29:03 -08:00
2020-11-09 18:20:36 +01:00
2020-10-23 11:00:57 -07:00
2020-10-05 14:49:24 +02:00
2020-10-24 10:33:08 -07:00
2020-11-02 10:10:39 -05:00
482e75e7b3