From: Fabio Estevam Date: Thu, 19 Jan 2012 12:23:22 +0000 (-0200) Subject: ASoC: mxs: Fix mxs-saif timeout X-Git-Tag: v3.3-rc2~31^2~3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b35f924b80a0e6d71711e66f5b3c16f427f3d2a;p=pandora-kernel.git ASoC: mxs: Fix mxs-saif timeout On a mx28evk board the following errors happens on mxs-sgtl5000 probe: [ 0.660000] saif0_clk_set_rate: divider writing timeout [ 0.670000] mxs-sgtl5000: probe of mxs-sgtl5000.0 failed with error -110 [ 0.670000] ALSA device list: [ 0.680000] No soundcards found. This timeout happens because clk_set_rate will result in writing to the DIV bits of register HW_CLKCTRL_SAIF0 with the saif clock gated (CLKGATE bit set to one). MX28 Reference states the following about CLKGATE: "The DIV field can change ONLY when this clock gate bit field is low." So call clk_prepare_enable prior to clk_set_rate to fix this problem. After this change the mxs-saif driver can be correctly probed and audio is functional. Signed-off-by: Fabio Estevam Signed-off-by: Mark Brown --- Reading git-diff-tree failed