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2019-08-07clk: Si5341/Si5340: remove redundant assignment to n_denColin Ian King1-1/+0
The variable n_den is initialized however that value is never read as n_den is re-assigned a little later in the two paths of a following if-statement. Remove the redundant assignment. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lkml.kernel.org/r/20190701165020.19840-1-colin.king@canonical.com Acked-by: Mike Looijmans <mike.looijmans@topic.nl> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-27clk: Add Si5341/Si5340 driverMike Looijmans1-0/+1346
Adds a driver for the Si5341 and Si5340 chips. The driver does not fully support all features of these chips, but allows the chip to be used without any support from the "clockbuilder pro" software. If the chip is preprogrammed, that is, you bought one with some defaults burned in, or you programmed the NVM in some way, the driver will just take over the current settings and only change them on demand. Otherwise the input must be a fixed XTAL in its most basic configuration (no predividers, no feedback, etc.). The driver supports dynamic changes of multisynth, output dividers and enabling or powering down outputs and multisynths. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> [sboyd@kernel.org: Mark some things static, use BIT_ULL for big bits and ULL for big constants] Signed-off-by: Stephen Boyd <sboyd@kernel.org>