On Wed, Oct 15, 2014 at 07:25:49PM +0800, Addy Ke wrote: > + if (WARN_ON(rs->speed > MAX_SCLK_OUT)) > + rs->speed = MAX_SCLK_OUT; > + > + /* the minimum divsor is 2 */ > + if (rs->max_freq < 2 * rs->speed) { > + clk_set_rate(rs->spiclk, 2 * rs->speed); > + rs->max_freq = clk_get_rate(rs->spiclk); > + } I'll apply this but you should be checking the return code from clk_set_rate() here, please send a followup patch doing that. It might also be worth consdering just setting the rate unconditionally here, it seems like it should make things simpler. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 473 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-rockchip/attachments/20141015/7c822801/attachment.sig>