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In OMAP35X TRM Rev 2010-05 Figure 7-18 "DPLL With EMI Reduction Feature", it is shown that the internal frequency is calculated by CLK_IN/(N+1). However, the value passed to _dpll_test_fint() is already "N+1" since Linux is using the values to divide by. In the technical reference manual, "N" is referring to the divider's register value (0-127). During power management testing, it was observed that programming the wrong jitter correction value can cause the system to become unstable and eventually crash. Signed-off-by: John Ogness <john.ogness@linutronix.de> [paul@pwsan.com: added second paragraph to commit message] Signed-off-by: Paul Walmsley <paul@pwsan.com> |
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