From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tero Kristo Subject: [PATCHv3 2/9] clk: omap: introduce clock driver Date: Tue, 25 Jun 2013 15:38:26 +0300 Message-ID: <1372163913-16566-3-git-send-email-t-kristo@ti.com> References: <1372163913-16566-1-git-send-email-t-kristo@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1372163913-16566-1-git-send-email-t-kristo@ti.com> Sender: linux-omap-owner@vger.kernel.org To: linux-omap@vger.kernel.org, paul@pwsan.com, tony@atomide.com, nm@ti.com, rnayak@ti.com, mturquette@linaro.org Cc: linux-arm-kernel@lists.infradead.org, devicetree-discuss@lists.ozlabs.org List-Id: devicetree@vger.kernel.org Parses OMAP clock data from DT and registers those clocks with the clock framework. dt_omap_clk_init must be called early during boot for timer initialization so it is exported and called from the existing clock code instead of probing like a real driver. Based on initial work done by Mike Turquette. Signed-off-by: Tero Kristo Cc: Mike Turquette --- drivers/clk/Makefile | 1 + drivers/clk/omap/Makefile | 1 + drivers/clk/omap/clk.c | 39 +++++++++++++++++++++++++++++++++++++++ include/linux/clk/omap.h | 24 ++++++++++++++++++++++++ 4 files changed, 65 insertions(+) create mode 100644 drivers/clk/omap/Makefile create mode 100644 drivers/clk/omap/clk.c create mode 100644 include/linux/clk/omap.h diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 137d3e7..1d5a2ec 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -30,6 +30,7 @@ obj-$(CONFIG_ARCH_VT8500) += clk-vt8500.o obj-$(CONFIG_ARCH_ZYNQ) += clk-zynq.o obj-$(CONFIG_ARCH_TEGRA) += tegra/ obj-$(CONFIG_PLAT_SAMSUNG) += samsung/ +obj-$(CONFIG_ARCH_OMAP) += omap/ obj-$(CONFIG_X86) += x86/ diff --git a/drivers/clk/omap/Makefile b/drivers/clk/omap/Makefile new file mode 100644 index 0000000..8195931 --- /dev/null +++ b/drivers/clk/omap/Makefile @@ -0,0 +1 @@ +obj-y += clk.o diff --git a/drivers/clk/omap/clk.c b/drivers/clk/omap/clk.c new file mode 100644 index 0000000..4bf1929 --- /dev/null +++ b/drivers/clk/omap/clk.c @@ -0,0 +1,39 @@ +/* + * OMAP PRCM clock driver + * + * Copyright (C) 2013 Texas Instruments, Inc. + * Tero Kristo + * Mike Turquette + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include + +/* FIXME - should the OMAP PRCM clock driver match generic types? */ +static const struct of_device_id clk_match[] = { + {.compatible = "fixed-clock", .data = of_fixed_clk_setup, }, + {.compatible = "mux-clock", .data = of_mux_clk_setup, }, + {.compatible = "fixed-factor-clock", + .data = of_fixed_factor_clk_setup, }, + {.compatible = "divider-clock", .data = of_divider_clk_setup, }, + {.compatible = "gate-clock", .data = of_gate_clk_setup, }, + {}, +}; + +/* FIXME - need to initialize early; skip real driver registration & probe */ +int __init dt_omap_clk_init(void) +{ + of_clk_init(clk_match); + return 0; +} diff --git a/include/linux/clk/omap.h b/include/linux/clk/omap.h new file mode 100644 index 0000000..647f02f --- /dev/null +++ b/include/linux/clk/omap.h @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2013 Texas Instruments, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __LINUX_CLK_OMAP_H_ +#define __LINUX_CLK_OMAP_H_ + +int __init dt_omap_clk_init(void); + +#endif -- 1.7.9.5