Shawn Guo 9f1612d351 clk: fix clk_get on of_clk_get_by_name return check ... The commit 766e6a4 (clk: add DT clock binding support) plugs device tree clk lookup of_clk_get_by_name into clk_get, and fall on non-DT lookup clk_get_sys if DT lookup fails. The return check on of_clk_get_by_name takes (clk != NULL) as a successful DT lookup. But it's not the case. For any system that does not define clk lookup in device tree, ERR_PTR(-ENOENT) will be returned, and consequently, all the client drivers calling clk_get in their probe functions will fail to probe with error code -ENOENT returned. Fix the issue by checking of_clk_get_by_name return with !IS_ERR(clk), and update of_clk_get and of_clk_get_by_name for !CONFIG_OF build correspondingly. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Tested-by: Marek Vasut <marex@denx.de> Tested-by: Lauri Hintsala <lauri.hintsala@bluegiga.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>		2012-07-19 14:07:45 -07:00
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mxs	Merge branch 'clk/mxs-for-3.6' of git://git.linaro.org/people/shawnguo/linux-2.6 into clk-next	2012-07-12 09:48:19 -07:00
spear	clk: SPEAr600: Fix ethernet clock name for DT based probing	2012-06-25 16:51:47 -07:00
versatile	ARM: integrator: convert to common clock	2012-07-11 17:58:45 -07:00
clk-divider.c	clk: Add CLK_IS_BASIC flag to identify basic clocks	2012-07-11 15:36:43 -07:00
clk-fixed-factor.c	clk: Add CLK_IS_BASIC flag to identify basic clocks	2012-07-11 15:36:43 -07:00
clk-fixed-rate.c	clk: add DT fixed-clock binding support	2012-07-11 17:58:46 -07:00
clk-gate.c	clk: Add CLK_IS_BASIC flag to identify basic clocks	2012-07-11 15:36:43 -07:00
clk-highbank.c	clk: add highbank clock support	2012-07-11 17:58:47 -07:00
clk-mux.c	clk: Add CLK_IS_BASIC flag to identify basic clocks	2012-07-11 15:36:43 -07:00
clk-u300.c	ARM: u300: convert to common clock	2012-07-11 15:36:45 -07:00
clk-wm831x.c	clk: wm831x: Add initial WM831x clock driver	2012-07-11 15:36:44 -07:00
clk.c	clk: add DT clock binding support	2012-07-11 17:58:45 -07:00
clkdev.c	clk: fix clk_get on of_clk_get_by_name return check	2012-07-19 14:07:45 -07:00
Kconfig	clk: wm831x: Add initial WM831x clock driver	2012-07-11 15:36:44 -07:00
Makefile	clk: add highbank clock support	2012-07-11 17:58:47 -07:00