From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754885AbdKBHCG (ORCPT ); Thu, 2 Nov 2017 03:02:06 -0400 Received: from sci-ig2.spreadtrum.com ([222.66.158.135]:53672 "EHLO SHSQR01.spreadtrum.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1750907AbdKBHCE (ORCPT ); Thu, 2 Nov 2017 03:02:04 -0400 From: Chunyan Zhang To: Stephen Boyd , Michael Turquette , Rob Herring , Mark Rutland CC: Catalin Marinas , Will Deacon , , , Arnd Bergmann , Mark Brown , Xiaolong Zhang , Ben Li , , , Orson Zhai , Chunyan Zhang Subject: [PATCH V3 00/11] add clock driver for Spreadtrum platforms Date: Thu, 2 Nov 2017 14:56:15 +0800 Message-ID: <20171102065626.21835-1-chunyan.zhang@spreadtrum.com> X-Mailer: git-send-email 2.12.2 MIME-Version: 1.0 Content-Type: text/plain X-MAIL: SHSQR01.spreadtrum.com vA271Pd2012020 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series adds Spreadtrum clock support together with its binding documentation and devicetree data. Any comments would be greatly appreciated. Thanks, Chunyan Changes from V2: (http://lkml.iu.edu/hypermail/linux/kernel/1707.1/01504.html) * Switch to use regmap to access registers; * Splited all clocks into 16 separated nodes, for each belongs to a single address area; * Rearranged the order of clock declaration in sc9860-clk.c, sorted them upon the address area; * Added syscon device tree nodes which will be quoted by the node of clocks which are in the same address area with the syscon device; * Revised the binding documentation according to the dt modification. Changes from V1: (https://lkml.org/lkml/2017/6/17/356) * Address Stephen's comments: - Switch to use platform device driver instead of the DT probing mechanism. - Move the common clock macro out from vendor directory, but need to remove those overlap code from other vendors (such as sunxi-ng) once this get merged. - Add support to be built as a module. - Add 'sprd_' prefix for all spin locks used in these drivers. - Mark input parameter of sprd_x with const. - Remove unreasonable dependencies to CONFIG_64BIT. - Add readl() after writing the same register. - Remove CLK_IS_BASIC which is no longer used. - Remove unnecessery CLK_IGNORE_UNUSED when defining a clock. - Change to expose all clock index. - Use clk_ instead of ccu. - Add Kconfig for sprd clocks. - Move the fixed clocks out from the soc node. - Switch to use 64-bit math in pll driver instead of 32-bit math. * Revise binding documentation according to dt modification. * Rename sc9860.c to sc9860-clk.c Chunyan Zhang (11): drivers: move clock common macros out from vendor directories dt-bindings: Add Spreadtrum clock binding documentation clk: sprd: Add common infrastructure clk: sprd: add gate clock support clk: sprd: add mux clock support clk: sprd: add divider clock support clk: sprd: add composite clock support clk: sprd: add adjustable pll support clk: sprd: add clocks support for SC9860 arm64: dts: add syscon for whale2 platform arm64: dts: add clocks for SC9860 Documentation/devicetree/bindings/clock/sprd.txt | 55 + arch/arm64/boot/dts/sprd/sc9860.dtsi | 115 ++ arch/arm64/boot/dts/sprd/whale2.dtsi | 48 +- drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/clk_common.h | 60 + drivers/clk/sprd/Kconfig | 14 + drivers/clk/sprd/Makefile | 11 + drivers/clk/sprd/common.c | 112 ++ drivers/clk/sprd/common.h | 57 + drivers/clk/sprd/composite.c | 65 + drivers/clk/sprd/composite.h | 49 + drivers/clk/sprd/div.c | 100 ++ drivers/clk/sprd/div.h | 79 + drivers/clk/sprd/gate.c | 106 ++ drivers/clk/sprd/gate.h | 54 + drivers/clk/sprd/mux.c | 89 + drivers/clk/sprd/mux.h | 65 + drivers/clk/sprd/pll.c | 268 +++ drivers/clk/sprd/pll.h | 110 ++ drivers/clk/sprd/sc9860-clk.c | 1987 ++++++++++++++++++++++ include/dt-bindings/clock/sprd,sc9860-clk.h | 408 +++++ 22 files changed, 3852 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/sprd.txt create mode 100644 drivers/clk/clk_common.h create mode 100644 drivers/clk/sprd/Kconfig create mode 100644 drivers/clk/sprd/Makefile create mode 100644 drivers/clk/sprd/common.c create mode 100644 drivers/clk/sprd/common.h create mode 100644 drivers/clk/sprd/composite.c create mode 100644 drivers/clk/sprd/composite.h create mode 100644 drivers/clk/sprd/div.c create mode 100644 drivers/clk/sprd/div.h create mode 100644 drivers/clk/sprd/gate.c create mode 100644 drivers/clk/sprd/gate.h create mode 100644 drivers/clk/sprd/mux.c create mode 100644 drivers/clk/sprd/mux.h create mode 100644 drivers/clk/sprd/pll.c create mode 100644 drivers/clk/sprd/pll.h create mode 100644 drivers/clk/sprd/sc9860-clk.c create mode 100644 include/dt-bindings/clock/sprd,sc9860-clk.h -- 2.7.4