From: Tero Kristo <t-kristo@ti.com> To: linux-omap@vger.kernel.org, paul@pwsan.com, khilman@linaro.org, tony@atomide.com, mturquette@linaro.org, nm@ti.com, rnayak@ti.com Cc: linux-arm-kernel@lists.infradead.org, devicetree-discuss@lists.ozlabs.org, Russell King <linux@arm.linux.org.uk> Subject: [PATCHv4 01/33] CLK: clkdev: add support for looking up clocks from DT Date: Tue, 23 Jul 2013 10:19:56 +0300 [thread overview] Message-ID: <1374564028-11352-2-git-send-email-t-kristo@ti.com> (raw) In-Reply-To: <1374564028-11352-1-git-send-email-t-kristo@ti.com> clk_get_sys / clk_get can now find clocks from device-tree. If a DT clock is found, an entry is added to the clk_lookup list also for subsequent searches. Signed-off-by: Tero Kristo <t-kristo@ti.com> Cc: Russell King <linux@arm.linux.org.uk> --- drivers/clk/clkdev.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c index 442a313..e39f082 100644 --- a/drivers/clk/clkdev.c +++ b/drivers/clk/clkdev.c @@ -93,6 +93,18 @@ struct clk *of_clk_get_by_name(struct device_node *np, const char *name) EXPORT_SYMBOL(of_clk_get_by_name); #endif +/** + * clkdev_add_nolock - add lookup entry for a clock + * @cl: pointer to new clock lookup entry + * + * Non-locking version, used internally by clk_find() to add DT based + * clock lookup entries. + */ +static void clkdev_add_nolock(struct clk_lookup *cl) +{ + list_add_tail(&cl->node, &clocks); +} + /* * Find the correct struct clk for the device and connection ID. * We do slightly fuzzy matching here: @@ -106,6 +118,9 @@ static struct clk_lookup *clk_find(const char *dev_id, const char *con_id) { struct clk_lookup *p, *cl = NULL; int match, best_found = 0, best_possible = 0; + struct device_node *node; + struct clk *clk; + struct of_phandle_args clkspec; if (dev_id) best_possible += 2; @@ -133,6 +148,23 @@ static struct clk_lookup *clk_find(const char *dev_id, const char *con_id) break; } } + + if (cl) + return cl; + + /* If clock was not found, attempt to look-up from DT */ + node = of_find_node_by_name(NULL, con_id); + + clkspec.np = node; + + clk = of_clk_get_from_provider(&clkspec); + + if (!IS_ERR(clk)) { + /* We found a clock, add node to clkdev */ + cl = clkdev_alloc(clk, con_id, dev_id); + clkdev_add_nolock(cl); + } + return cl; } -- 1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: t-kristo@ti.com (Tero Kristo) To: linux-arm-kernel@lists.infradead.org Subject: [PATCHv4 01/33] CLK: clkdev: add support for looking up clocks from DT Date: Tue, 23 Jul 2013 10:19:56 +0300 [thread overview] Message-ID: <1374564028-11352-2-git-send-email-t-kristo@ti.com> (raw) In-Reply-To: <1374564028-11352-1-git-send-email-t-kristo@ti.com> clk_get_sys / clk_get can now find clocks from device-tree. If a DT clock is found, an entry is added to the clk_lookup list also for subsequent searches. Signed-off-by: Tero Kristo <t-kristo@ti.com> Cc: Russell King <linux@arm.linux.org.uk> --- drivers/clk/clkdev.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c index 442a313..e39f082 100644 --- a/drivers/clk/clkdev.c +++ b/drivers/clk/clkdev.c @@ -93,6 +93,18 @@ struct clk *of_clk_get_by_name(struct device_node *np, const char *name) EXPORT_SYMBOL(of_clk_get_by_name); #endif +/** + * clkdev_add_nolock - add lookup entry for a clock + * @cl: pointer to new clock lookup entry + * + * Non-locking version, used internally by clk_find() to add DT based + * clock lookup entries. + */ +static void clkdev_add_nolock(struct clk_lookup *cl) +{ + list_add_tail(&cl->node, &clocks); +} + /* * Find the correct struct clk for the device and connection ID. * We do slightly fuzzy matching here: @@ -106,6 +118,9 @@ static struct clk_lookup *clk_find(const char *dev_id, const char *con_id) { struct clk_lookup *p, *cl = NULL; int match, best_found = 0, best_possible = 0; + struct device_node *node; + struct clk *clk; + struct of_phandle_args clkspec; if (dev_id) best_possible += 2; @@ -133,6 +148,23 @@ static struct clk_lookup *clk_find(const char *dev_id, const char *con_id) break; } } + + if (cl) + return cl; + + /* If clock was not found, attempt to look-up from DT */ + node = of_find_node_by_name(NULL, con_id); + + clkspec.np = node; + + clk = of_clk_get_from_provider(&clkspec); + + if (!IS_ERR(clk)) { + /* We found a clock, add node to clkdev */ + cl = clkdev_alloc(clk, con_id, dev_id); + clkdev_add_nolock(cl); + } + return cl; } -- 1.7.9.5
next prev parent reply other threads:[~2013-07-23 7:19 UTC|newest] Thread overview: 204+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-07-23 7:19 [PATCHv4 00/33] ARM: OMAP: clock conversion to DT Tero Kristo 2013-07-23 7:19 ` Tero Kristo 2013-07-23 7:19 ` Tero Kristo [this message] 2013-07-23 7:19 ` [PATCHv4 01/33] CLK: clkdev: add support for looking up clocks from DT Tero Kristo 2013-07-30 15:04 ` Nishanth Menon 2013-07-30 15:04 ` Nishanth Menon 2013-07-31 8:43 ` Tero Kristo 2013-07-31 8:43 ` Tero Kristo 2013-07-23 7:19 ` [PATCHv4 02/33] clk: omap: introduce clock driver Tero Kristo 2013-07-23 7:19 ` Tero Kristo 2013-07-30 15:21 ` Nishanth Menon 2013-07-30 15:21 ` Nishanth Menon 2013-07-31 8:59 ` Tero Kristo 2013-07-31 8:59 ` Tero Kristo 2013-08-01 13:44 ` Nishanth Menon 2013-08-01 13:44 ` Nishanth Menon 2013-08-01 14:59 ` Tero Kristo 2013-08-01 14:59 ` Tero Kristo 2013-07-23 7:19 ` [PATCHv4 03/33] CLK: OMAP4: Add DPLL clock support Tero Kristo 2013-07-23 7:19 ` Tero Kristo 2013-07-30 16:23 ` Nishanth Menon 2013-07-30 16:23 ` Nishanth Menon 2013-07-31 9:46 ` Tero Kristo 2013-07-31 9:46 ` Tero Kristo 2013-08-01 14:00 ` Nishanth Menon 2013-08-01 14:00 ` Nishanth Menon 2013-08-01 15:08 ` Tero Kristo 2013-08-01 15:08 ` Tero Kristo 2013-08-01 15:13 ` Nishanth Menon 2013-08-01 15:13 ` Nishanth Menon 2013-08-01 8:29 ` Rajendra Nayak 2013-08-01 8:29 ` Rajendra Nayak 2013-08-01 15:10 ` Nishanth Menon 2013-08-01 15:10 ` Nishanth Menon 2013-08-01 15:41 ` Tero Kristo 2013-08-01 15:41 ` Tero Kristo 2013-07-23 7:19 ` [PATCHv4 04/33] CLK: omap: move part of the machine specific clock header contents to driver Tero Kristo 2013-07-23 7:19 ` Tero Kristo 2013-07-30 18:22 ` Nishanth Menon 2013-07-30 18:22 ` Nishanth Menon 2013-07-31 9:59 ` Tero Kristo 2013-07-31 9:59 ` Tero Kristo 2013-08-01 14:04 ` Nishanth Menon 2013-08-01 14:04 ` Nishanth Menon 2013-08-01 15:12 ` Tero Kristo 2013-08-01 15:12 ` Tero Kristo 2013-08-01 15:21 ` Nishanth Menon 2013-08-01 15:21 ` Nishanth Menon 2013-07-23 7:20 ` [PATCHv4 05/33] CLK: omap: add DT duplicate clock registration mechanism Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 18:40 ` Nishanth Menon 2013-07-30 18:40 ` Nishanth Menon 2013-07-31 10:07 ` Tero Kristo 2013-07-31 10:07 ` Tero Kristo 2013-08-01 14:25 ` Nishanth Menon 2013-08-01 14:25 ` Nishanth Menon 2013-08-01 15:18 ` Tero Kristo 2013-08-01 15:18 ` Tero Kristo 2013-08-01 15:24 ` Nishanth Menon 2013-08-01 15:24 ` Nishanth Menon 2013-08-01 15:30 ` Tero Kristo 2013-08-01 15:30 ` Tero Kristo 2013-08-02 7:22 ` Tony Lindgren 2013-08-02 7:22 ` Tony Lindgren 2013-07-23 7:20 ` [PATCHv4 06/33] CLK: omap: add autoidle support Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 18:56 ` Nishanth Menon 2013-07-30 18:56 ` Nishanth Menon 2013-07-31 10:13 ` Tero Kristo 2013-07-31 10:13 ` Tero Kristo 2013-08-01 14:11 ` Nishanth Menon 2013-08-01 14:11 ` Nishanth Menon 2013-08-01 15:22 ` Tero Kristo 2013-08-01 15:22 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 07/33] CLK: omap: add support for OMAP gate clock Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 19:17 ` Nishanth Menon 2013-07-30 19:17 ` Nishanth Menon 2013-07-31 14:45 ` Tero Kristo 2013-07-31 14:45 ` Tero Kristo 2013-08-01 14:33 ` Nishanth Menon 2013-08-01 14:33 ` Nishanth Menon 2013-08-01 15:29 ` Tero Kristo 2013-08-01 15:29 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 08/33] ARM: dts: omap4 clock data Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 19:27 ` Nishanth Menon 2013-07-30 19:27 ` Nishanth Menon 2013-07-31 14:49 ` Tero Kristo 2013-07-31 14:49 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 09/33] CLK: omap: add omap4 clock init file Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 19:33 ` Nishanth Menon 2013-07-30 19:33 ` Nishanth Menon 2013-07-31 14:52 ` Tero Kristo 2013-07-31 14:52 ` Tero Kristo 2013-08-01 14:40 ` Nishanth Menon 2013-08-01 14:40 ` Nishanth Menon 2013-08-01 15:34 ` Tero Kristo 2013-08-01 15:34 ` Tero Kristo 2013-08-01 16:10 ` Nishanth Menon 2013-08-01 16:10 ` Nishanth Menon 2013-07-23 7:20 ` [PATCHv4 10/33] ARM: OMAP4: remove old clock data and link in new clock init code Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 19:42 ` Nishanth Menon 2013-07-30 19:42 ` Nishanth Menon 2013-07-31 14:55 ` Tero Kristo 2013-07-31 14:55 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 11/33] ARM: dts: omap5 clock data Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 12/33] CLK: omap: add omap5 clock init file Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 13/33] ARM: dts: dra7 clock data Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 14/33] CLK: omap: add dra7 clock init file Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 15/33] CLK: OMAP: DPLL: add support for DT property ti,dpll-no-gate Tero Kristo 2013-07-23 7:20 ` [PATCHv4 15/33] CLK: OMAP: DPLL: add support for DT property ti, dpll-no-gate Tero Kristo 2013-07-30 19:18 ` [PATCHv4 15/33] CLK: OMAP: DPLL: add support for DT property ti,dpll-no-gate Nishanth Menon 2013-07-30 19:18 ` Nishanth Menon 2013-07-31 14:56 ` Tero Kristo 2013-07-31 14:56 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 16/33] CLK: OMAP: DPLL: do not of_iomap NULL autoidle register Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 19:49 ` Nishanth Menon 2013-07-30 19:49 ` Nishanth Menon 2013-07-31 14:57 ` Tero Kristo 2013-07-31 14:57 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 17/33] CLK: DT: add support for set-rate-parent flag Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 19:58 ` Nishanth Menon 2013-07-30 19:58 ` Nishanth Menon 2013-07-23 7:20 ` [PATCHv4 18/33] ARM: dts: am33xx clock data Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 19/33] CLK: omap: add am33xx clock init file Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 20:00 ` Nishanth Menon 2013-07-30 20:00 ` Nishanth Menon 2013-07-31 14:59 ` Tero Kristo 2013-07-31 14:59 ` Tero Kristo 2013-08-01 14:43 ` Nishanth Menon 2013-08-01 14:43 ` Nishanth Menon 2013-08-01 15:35 ` Tero Kristo 2013-08-01 15:35 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 20/33] ARM: AM33xx: remove old clock data and link in new clock init code Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 21/33] CLK: OMAP: DPLL: add omap3 dpll support Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 20:08 ` Nishanth Menon 2013-07-30 20:08 ` Nishanth Menon 2013-07-31 15:03 ` Tero Kristo 2013-07-31 15:03 ` Tero Kristo 2013-08-01 14:46 ` Nishanth Menon 2013-08-01 14:46 ` Nishanth Menon 2013-07-23 7:20 ` [PATCHv4 22/33] CLK: OMAP: update gate clock setup for OMAP3 Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 20:13 ` Nishanth Menon 2013-07-30 20:13 ` Nishanth Menon 2013-07-31 15:05 ` Tero Kristo 2013-07-31 15:05 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 23/33] CLK: OMAP: add interface clock support " Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-30 20:23 ` Nishanth Menon 2013-07-30 20:23 ` Nishanth Menon 2013-07-31 15:09 ` Tero Kristo 2013-07-31 15:09 ` Tero Kristo 2013-08-01 14:50 ` Nishanth Menon 2013-08-01 14:50 ` Nishanth Menon 2013-07-23 7:20 ` [PATCHv4 24/33] CLK: OMAP: move some defines from machine to driver header Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 25/33] ARM: OMAP: hwmod: fix an incorrect clk type cast with _get_clkdm Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 26/33] CLK: omap: gate: add support for OMAP36xx dpllx_mx_ck:s Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 27/33] ARM: OMAP3: hwmod: initialize clkdm from clkdm_name Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 28/33] ARM: dts: omap3 clock data Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 30/33] clk: OMAP: DRA7: Add APLL support Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 31/33] ARM: dts: clk: Add apll related clocks Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 32/33] clk: OMAP: DRA7: Change apll_pcie_m2_ck to fixed factor clock Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 7:20 ` [PATCHv4 33/33] clk: DTS: DRA7: Add PCIe related clock nodes Tero Kristo 2013-07-23 7:20 ` Tero Kristo 2013-07-23 8:24 ` [PATCHv4 00/33] ARM: OMAP: clock conversion to DT Tero Kristo 2013-07-23 8:24 ` Tero Kristo 2013-07-24 14:16 ` Roger Quadros 2013-07-24 14:16 ` Roger Quadros 2013-07-24 14:29 ` Tero Kristo 2013-07-24 14:29 ` Tero Kristo 2013-07-24 14:34 ` Roger Quadros 2013-07-24 14:34 ` Roger Quadros 2013-07-24 14:43 ` Tero Kristo 2013-07-24 14:43 ` Tero Kristo [not found] ` <1374564028-11352-30-git-send-email-t-kristo@ti.com> 2013-07-30 20:19 ` [PATCHv4 29/33] CLK: omap: add omap3 clock init file Nishanth Menon 2013-07-30 20:19 ` Nishanth Menon 2013-07-31 6:35 ` Tony Lindgren 2013-07-31 6:35 ` Tony Lindgren 2013-07-31 15:10 ` Tero Kristo 2013-07-31 15:10 ` Tero Kristo 2013-08-02 7:24 ` Tony Lindgren 2013-08-02 7:24 ` Tony Lindgren
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