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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 18:56:08 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 18:56:08 -0800
commit7e21774db5cc9cf8fe93a64a2f0c6cf47db8ab24 (patch)
tree460812792bc3b23789a83968b7bad840cc3eb047 /drivers/clk/qcom/clk-branch.h
parent0ba3307a8ec35252f7b1e222e32889a6f3d9ceb3 (diff)
parent2e84d75116c17c2034e917b411250d2d11755435 (diff)
downloadlinux-7e21774db5cc9cf8fe93a64a2f0c6cf47db8ab24.tar.bz2
Merge tag 'clk-for-linus-3.14-part1' of git://git.linaro.org/people/mike.turquette/linux
Pull clk framework changes from Mike Turquette: "The first half of the clk framework pull request is made up almost entirely of new platform/driver support. There are some conversions of existing drivers to the common-clock Device Tree binding, and a few non-critical fixes to the framework. Due to an entirely unnecessary cyclical dependency with the arm-soc tree this pull request is broken into two pieces. The second piece will be sent out after arm-soc sends you the pull request that merged in core support for the HiSilicon 3620 platform. That same pull request from arm-soc depends on this pull request to merge in those HiSilicon bits without causing build failures" [ Just did the ARM SoC merges, so getting ready for the second clk tree pull request - Linus ] * tag 'clk-for-linus-3.14-part1' of git://git.linaro.org/people/mike.turquette/linux: (97 commits) devicetree: bindings: Document qcom,mmcc devicetree: bindings: Document qcom,gcc clk: qcom: Add support for MSM8660's global clock controller (GCC) clk: qcom: Add support for MSM8974's multimedia clock controller (MMCC) clk: qcom: Add support for MSM8974's global clock controller (GCC) clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC) clk: qcom: Add support for MSM8960's global clock controller (GCC) clk: qcom: Add reset controller support clk: qcom: Add support for branches/gate clocks clk: qcom: Add support for root clock generators (RCGs) clk: qcom: Add support for phase locked loops (PLLs) clk: qcom: Add a regmap type clock struct clk: Add set_rate_and_parent() op reset: Silence warning in reset-controller.h clk: sirf: re-arch to make the codes support both prima2 and atlas6 clk: composite: pass mux_hw into determine_rate clk: shmobile: Fix MSTP clock array initialization clk: shmobile: Fix MSTP clock index ARM: dts: Add clock provider specific properties to max77686 node clk: max77686: Register OF clock provider ...
Diffstat (limited to 'drivers/clk/qcom/clk-branch.h')
-rw-r--r--drivers/clk/qcom/clk-branch.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/clk/qcom/clk-branch.h b/drivers/clk/qcom/clk-branch.h
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+++ b/drivers/clk/qcom/clk-branch.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __QCOM_CLK_BRANCH_H__
+#define __QCOM_CLK_BRANCH_H__
+
+#include <linux/clk-provider.h>
+
+#include "clk-regmap.h"
+
+/**
+ * struct clk_branch - gating clock with status bit and dynamic hardware gating
+ *
+ * @hwcg_reg: dynamic hardware clock gating register
+ * @hwcg_bit: ORed with @hwcg_reg to enable dynamic hardware clock gating
+ * @halt_reg: halt register
+ * @halt_bit: ANDed with @halt_reg to test for clock halted
+ * @halt_check: type of halt checking to perform
+ * @clkr: handle between common and hardware-specific interfaces
+ *
+ * Clock which can gate its output.
+ */
+struct clk_branch {
+ u32 hwcg_reg;
+ u32 halt_reg;
+ u8 hwcg_bit;
+ u8 halt_bit;
+ u8 halt_check;
+#define BRANCH_VOTED BIT(7) /* Delay on disable */
+#define BRANCH_HALT 0 /* pol: 1 = halt */
+#define BRANCH_HALT_VOTED (BRANCH_HALT | BRANCH_VOTED)
+#define BRANCH_HALT_ENABLE 1 /* pol: 0 = halt */
+#define BRANCH_HALT_ENABLE_VOTED (BRANCH_HALT_ENABLE | BRANCH_VOTED)
+#define BRANCH_HALT_DELAY 2 /* No bit to check; just delay */
+
+ struct clk_regmap clkr;
+};
+
+extern const struct clk_ops clk_branch_ops;
+extern const struct clk_ops clk_branch2_ops;
+extern const struct clk_ops clk_branch_simple_ops;
+
+#define to_clk_branch(_hw) \
+ container_of(to_clk_regmap(_hw), struct clk_branch, clkr)
+
+#endif