From: "A.s. Dong" <aisheng.dong@nxp.com> To: "linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org> Cc: "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, "sboyd@kernel.org" <sboyd@kernel.org>, "mturquette@baylibre.com" <mturquette@baylibre.com>, "shawnguo@kernel.org" <shawnguo@kernel.org>, Fabio Estevam <fabio.estevam@nxp.com>, dl-linux-imx <linux-imx@nxp.com>, "kernel@pengutronix.de" <kernel@pengutronix.de>, "A.s. Dong" <aisheng.dong@nxp.com> Subject: [PATCH V5 2/9] clk: imx: scu: add scu clock common part Date: Thu, 18 Oct 2018 16:53:49 +0000 [thread overview] Message-ID: <1539881347-20871-3-git-send-email-aisheng.dong@nxp.com> (raw) In-Reply-To: <1539881347-20871-1-git-send-email-aisheng.dong@nxp.com> Add scu clock common part which will be used by client clock drivers. SCU clocks are totally different from the legacy clocks (No much legacy things can be reused). So a new configuration option CONFIG_MXC_CLK_SCU is added. Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> --- ChangeLog: v4->v5: * add more explanation in commit message on why put scu clocks in a deeper folder. * move scu clk files into the top directory of imx folder v3->v4: * scu headfile path change v2->v3: * no changes v1->v2: * update function call name --- drivers/clk/imx/Kconfig | 4 ++++ drivers/clk/imx/Makefile | 3 +++ drivers/clk/imx/clk-scu.c | 17 +++++++++++++++++ drivers/clk/imx/clk-scu.h | 18 ++++++++++++++++++ 4 files changed, 42 insertions(+) create mode 100644 drivers/clk/imx/clk-scu.c create mode 100644 drivers/clk/imx/clk-scu.h diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig index 43a3ecc..63e7b01 100644 --- a/drivers/clk/imx/Kconfig +++ b/drivers/clk/imx/Kconfig @@ -3,3 +3,7 @@ config MXC_CLK bool depends on ARCH_MXC + +config MXC_CLK_SCU + bool + depends on ARCH_MXC && ARM64 diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile index d447f8c..eec6d72 100644 --- a/drivers/clk/imx/Makefile +++ b/drivers/clk/imx/Makefile @@ -13,6 +13,9 @@ obj-$(CONFIG_MXC_CLK) += \ clk-pllv3.o \ clk-pfd.o +obj-$(CONFIG_MXC_CLK_SCU) += \ + clk-scu.o + obj-$(CONFIG_SOC_IMX1) += clk-imx1.o obj-$(CONFIG_SOC_IMX21) += clk-imx21.o obj-$(CONFIG_SOC_IMX25) += clk-imx25.o diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c new file mode 100644 index 0000000..826049f --- /dev/null +++ b/drivers/clk/imx/clk-scu.c @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2016 Freescale Semiconductor, Inc. + * Copyright 2017~2018 NXP + * Dong Aisheng <aisheng.dong@nxp.com> + */ + +#include <linux/errno.h> +#include "clk-scu.h" + +DEFINE_SPINLOCK(imx_ccm_lock); +struct imx_sc_ipc *ccm_ipc_handle; + +int imx_clk_scu_init(void) +{ + return imx_scu_get_handle(&ccm_ipc_handle); +} diff --git a/drivers/clk/imx/clk-scu.h b/drivers/clk/imx/clk-scu.h new file mode 100644 index 0000000..b964f35 --- /dev/null +++ b/drivers/clk/imx/clk-scu.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2016 Freescale Semiconductor, Inc. + * Copyright 2017~2018 NXP + */ + +#ifndef __IMX_CLK_SCU_H +#define __IMX_CLK_SCU_H + +#include <linux/firmware/imx/sci.h> +#include <linux/spinlock.h> + +extern spinlock_t imx_ccm_lock; +extern struct imx_sc_ipc *ccm_ipc_handle; + +int imx_clk_scu_init(void); + +#endif -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: aisheng.dong@nxp.com (A.s. Dong) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V5 2/9] clk: imx: scu: add scu clock common part Date: Thu, 18 Oct 2018 16:53:49 +0000 [thread overview] Message-ID: <1539881347-20871-3-git-send-email-aisheng.dong@nxp.com> (raw) In-Reply-To: <1539881347-20871-1-git-send-email-aisheng.dong@nxp.com> Add scu clock common part which will be used by client clock drivers. SCU clocks are totally different from the legacy clocks (No much legacy things can be reused). So a new configuration option CONFIG_MXC_CLK_SCU is added. Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> --- ChangeLog: v4->v5: * add more explanation in commit message on why put scu clocks in a deeper folder. * move scu clk files into the top directory of imx folder v3->v4: * scu headfile path change v2->v3: * no changes v1->v2: * update function call name --- drivers/clk/imx/Kconfig | 4 ++++ drivers/clk/imx/Makefile | 3 +++ drivers/clk/imx/clk-scu.c | 17 +++++++++++++++++ drivers/clk/imx/clk-scu.h | 18 ++++++++++++++++++ 4 files changed, 42 insertions(+) create mode 100644 drivers/clk/imx/clk-scu.c create mode 100644 drivers/clk/imx/clk-scu.h diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig index 43a3ecc..63e7b01 100644 --- a/drivers/clk/imx/Kconfig +++ b/drivers/clk/imx/Kconfig @@ -3,3 +3,7 @@ config MXC_CLK bool depends on ARCH_MXC + +config MXC_CLK_SCU + bool + depends on ARCH_MXC && ARM64 diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile index d447f8c..eec6d72 100644 --- a/drivers/clk/imx/Makefile +++ b/drivers/clk/imx/Makefile @@ -13,6 +13,9 @@ obj-$(CONFIG_MXC_CLK) += \ clk-pllv3.o \ clk-pfd.o +obj-$(CONFIG_MXC_CLK_SCU) += \ + clk-scu.o + obj-$(CONFIG_SOC_IMX1) += clk-imx1.o obj-$(CONFIG_SOC_IMX21) += clk-imx21.o obj-$(CONFIG_SOC_IMX25) += clk-imx25.o diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c new file mode 100644 index 0000000..826049f --- /dev/null +++ b/drivers/clk/imx/clk-scu.c @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2016 Freescale Semiconductor, Inc. + * Copyright 2017~2018 NXP + * Dong Aisheng <aisheng.dong@nxp.com> + */ + +#include <linux/errno.h> +#include "clk-scu.h" + +DEFINE_SPINLOCK(imx_ccm_lock); +struct imx_sc_ipc *ccm_ipc_handle; + +int imx_clk_scu_init(void) +{ + return imx_scu_get_handle(&ccm_ipc_handle); +} diff --git a/drivers/clk/imx/clk-scu.h b/drivers/clk/imx/clk-scu.h new file mode 100644 index 0000000..b964f35 --- /dev/null +++ b/drivers/clk/imx/clk-scu.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2016 Freescale Semiconductor, Inc. + * Copyright 2017~2018 NXP + */ + +#ifndef __IMX_CLK_SCU_H +#define __IMX_CLK_SCU_H + +#include <linux/firmware/imx/sci.h> +#include <linux/spinlock.h> + +extern spinlock_t imx_ccm_lock; +extern struct imx_sc_ipc *ccm_ipc_handle; + +int imx_clk_scu_init(void); + +#endif -- 2.7.4
next prev parent reply other threads:[~2018-10-18 16:53 UTC|newest] Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-10-18 16:53 [PATCH V5 0/9] clk: imx: add imx8qxp clock support A.s. Dong 2018-10-18 16:53 ` A.s. Dong 2018-10-18 16:53 ` [PATCH V5 1/9] clk: imx: add configuration option for mmio clks A.s. Dong 2018-10-18 16:53 ` A.s. Dong 2018-10-18 16:53 ` A.s. Dong [this message] 2018-10-18 16:53 ` [PATCH V5 2/9] clk: imx: scu: add scu clock common part A.s. Dong 2018-10-18 16:53 ` [PATCH V5 3/9] clk: imx: scu: add scu clock divider A.s. Dong 2018-10-18 16:53 ` A.s. Dong 2018-10-18 16:53 ` [PATCH V5 4/9] clk: imx: scu: add scu clock gpr divider A.s. Dong 2018-10-18 16:53 ` A.s. Dong 2018-10-18 16:54 ` [PATCH V5 5/9] clk: imx: scu: add scu clock gate A.s. Dong 2018-10-18 16:54 ` A.s. Dong 2018-10-18 16:54 ` [PATCH V5 6/9] clk: imx: scu: add scu clock gpr gate A.s. Dong 2018-10-18 16:54 ` A.s. Dong 2018-10-18 16:54 ` [PATCH V5 7/9] clk: imx: scu: add scu clock mux A.s. Dong 2018-10-18 16:54 ` A.s. Dong 2018-10-18 16:54 ` [PATCH V5 8/9] clk: imx: scu: add scu clock gpr mux A.s. Dong 2018-10-18 16:54 ` A.s. Dong 2018-10-18 16:54 ` [PATCH V5 9/9] clk: imx: add imx8qxp clk driver A.s. Dong 2018-10-18 16:54 ` A.s. Dong 2018-10-18 17:38 ` Stephen Boyd 2018-10-18 17:38 ` Stephen Boyd 2018-10-18 18:13 ` A.s. Dong 2018-10-18 18:13 ` A.s. Dong 2018-10-18 20:46 ` Stephen Boyd 2018-10-18 20:46 ` Stephen Boyd 2018-10-19 9:05 ` A.s. Dong 2018-10-19 9:05 ` A.s. Dong 2018-10-25 14:43 ` A.s. Dong 2018-10-25 14:43 ` A.s. Dong 2018-11-10 15:58 ` A.s. Dong 2018-11-10 15:58 ` A.s. Dong 2018-11-14 23:23 ` Stephen Boyd 2018-11-14 23:23 ` Stephen Boyd
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