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linux/drivers/clk/clkdev.c

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[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
ARM: 6483/1: arm & sh: factorised duplicated clkdev.c factorise some generic infrastructure to assist looking up struct clks for the ARM & SH architecture. as the code is identical at 99% put the arch specific code for allocation as example in asm/clkdev.h Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-17 10:04:33 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
ARM: 5639/1: arm: clkdev.c should include <linux/clk.h> <linux/clk.h> should be included to get the base API prototypes. This fixes the following sparse warnings: arch/arm/common/clkdev.c:65:12: warning: symbol 'clk_get_sys' was not declared. Should it be static? arch/arm/common/clkdev.c:79:12: warning: symbol 'clk_get' was not declared. Should it be static? arch/arm/common/clkdev.c:87:6: warning: symbol 'clk_put' was not declared. Should it be static? Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-08-04 23:38:06 +01:00
ARM: 6483/1: arm & sh: factorised duplicated clkdev.c factorise some generic infrastructure to assist looking up struct clks for the ARM & SH architecture. as the code is identical at 99% put the arch specific code for allocation as example in asm/clkdev.h Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-17 10:04:33 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
[ARM] clkdev: fix clock matching The old matching algorithm was too fuzzy, causing false positives. For example, when asked for device D connection C1 and we only find device D connection C2, we return that as a valid match despite the connection names being different. Change the algorithm such that: An entry with a NULL ID is assumed to be a wildcard. If an entry has a device ID, it must match If an entry has a connection ID, it must match However, we maintain the order of precidence while still only doing a single pass over all entries: dev+con > dev only > con only. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 10:14:37 +00:00
fix typos "precidence" -> "precedence" in comments This patch was generated by git grep -E -i -l 'precidence' | xargs -r perl -p -i -e 's/precidence/precedence/' Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-01-18 16:02:48 +01:00
[ARM] clkdev: fix clock matching The old matching algorithm was too fuzzy, causing false positives. For example, when asked for device D connection C1 and we only find device D connection C2, we return that as a valid match despite the connection names being different. Change the algorithm such that: An entry with a NULL ID is assumed to be a wildcard. If an entry has a device ID, it must match If an entry has a connection ID, it must match However, we maintain the order of precidence while still only doing a single pass over all entries: dev+con > dev only > con only. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 10:14:37 +00:00
CLKDEV: Fix clkdev return value for NULL clk case clkdev may incorrectly cause a clkdev entry with a NULL clk to return -ENOENT. This is not the intention of this code; -ENOENT should only be returned if the clock entry can not be found in the table. Fix this. Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-04-30 10:14:08 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
CLKDEV: Fix clkdev return value for NULL clk case clkdev may incorrectly cause a clkdev entry with a NULL clk to return -ENOENT. This is not the intention of this code; -ENOENT should only be returned if the clock entry can not be found in the table. Fix this. Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-04-30 10:14:08 +01:00
ARM: 7392/1: CLKDEV: Optimize clk_find() clk_find must return as soon as it gets the correct clock. Currently it check all clocks until it found a lookup with both dev_id and con_id matching. If only one of them is passed, then we don't actually need to wait for both of them to match. We can quit as soon as the requested id (dev_id or con_id) matches. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-19 04:23:25 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
[ARM] clkdev: fix clock matching The old matching algorithm was too fuzzy, causing false positives. For example, when asked for device D connection C1 and we only find device D connection C2, we return that as a valid match despite the connection names being different. Change the algorithm such that: An entry with a NULL ID is assumed to be a wildcard. If an entry has a device ID, it must match If an entry has a connection ID, it must match However, we maintain the order of precidence while still only doing a single pass over all entries: dev+con > dev only > con only. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 10:14:37 +00:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
ARM: 7392/1: CLKDEV: Optimize clk_find() clk_find must return as soon as it gets the correct clock. Currently it check all clocks until it found a lookup with both dev_id and con_id matching. If only one of them is passed, then we don't actually need to wait for both of them to match. We can quit as soon as the requested id (dev_id or con_id) matches. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-19 04:23:25 +01:00
CLKDEV: Fix clkdev return value for NULL clk case clkdev may incorrectly cause a clkdev entry with a NULL clk to return -ENOENT. This is not the intention of this code; -ENOENT should only be returned if the clock entry can not be found in the table. Fix this. Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-04-30 10:14:08 +01:00
ARM: 7392/1: CLKDEV: Optimize clk_find() clk_find must return as soon as it gets the correct clock. Currently it check all clocks until it found a lookup with both dev_id and con_id matching. If only one of them is passed, then we don't actually need to wait for both of them to match. We can quit as soon as the requested id (dev_id or con_id) matches. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-19 04:23:25 +01:00
ARM: 5979/1: CLKDEV: return from clk_find as soon as we get maching clk clk_find function looks for clock with matching dev_id and con_id. We should return from clk_find as soon as we get a clock with matching dev_id and con_id. This can be done by comparing variable "match" with 3. Acked-by: Uwe Kleine-Konig <u.kleine-koenig@pengutronix.de> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-09 11:54:30 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
CLKDEV: Fix clkdev return value for NULL clk case clkdev may incorrectly cause a clkdev entry with a NULL clk to return -ENOENT. This is not the intention of this code; -ENOENT should only be returned if the clock entry can not be found in the table. Fix this. Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-04-30 10:14:08 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
clkdev: add possibility to get a clock based on the device name This adds clk_get_sys to get a clock without the associated struct device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-07 12:55:49 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
CLKDEV: Fix clkdev return value for NULL clk case clkdev may incorrectly cause a clkdev entry with a NULL clk to return -ENOENT. This is not the intention of this code; -ENOENT should only be returned if the clock entry can not be found in the table. Fix this. Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-04-30 10:14:08 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
CLKDEV: Fix clkdev return value for NULL clk case clkdev may incorrectly cause a clkdev entry with a NULL clk to return -ENOENT. This is not the intention of this code; -ENOENT should only be returned if the clock entry can not be found in the table. Fix this. Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-04-30 10:14:08 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
CLKDEV: Fix clkdev return value for NULL clk case clkdev may incorrectly cause a clkdev entry with a NULL clk to return -ENOENT. This is not the intention of this code; -ENOENT should only be returned if the clock entry can not be found in the table. Fix this. Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-04-30 10:14:08 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
clkdev: add possibility to get a clock based on the device name This adds clk_get_sys to get a clock without the associated struct device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-07 12:55:49 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
ARM: 7376/1: clkdev: Implement managed clk_get() Allow clk API users to simplify their cleanup paths by providing a managed version of clk_get() and clk_put(). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-04-05 11:42:09 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
ARM: Consolidate clks_register() and similar Most machine classes want some way to register a block of clk_lookup structures, and most do it by implementing a clks_register() type function which walks an array, or by open-coding a loop. Consolidate all this into clkdev_add_table(). Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-12 12:28:00 +00:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
CLKDEV: provide helpers for common clock framework The common clock framework allocates clocks dynamically. Provide a set of helpers to streamline the clkdev registration of the clock lookups to avoid repetitive code sequences. Reviewed-by: Viresh Kumar <viresh.kumar@st.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-02 09:30:32 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
ARM: 6483/1: arm & sh: factorised duplicated clkdev.c factorise some generic infrastructure to assist looking up struct clks for the ARM & SH architecture. as the code is identical at 99% put the arch specific code for allocation as example in asm/clkdev.h Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-17 10:04:33 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
CLKDEV: provide helpers for common clock framework The common clock framework allocates clocks dynamically. Provide a set of helpers to streamline the clkdev registration of the clock lookups to avoid repetitive code sequences. Reviewed-by: Viresh Kumar <viresh.kumar@st.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-02 09:30:32 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
[ARM] 5536/1: Move clk_add_alias() to arch/arm/common/clkdev.c This can be used for other arm platforms too as discussed on the linux-arm-kernel list. Also check the return value with IS_ERR and return PTR_ERR as suggested by Russell King. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-06-03 17:43:14 +01:00
[ARM] clkdev: add generic clkdev infrastructure Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-09 16:32:46 +00:00
CLKDEV: provide helpers for common clock framework The common clock framework allocates clocks dynamically. Provide a set of helpers to streamline the clkdev registration of the clock lookups to avoid repetitive code sequences. Reviewed-by: Viresh Kumar <viresh.kumar@st.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-02 09:30:32 +01:00