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path: root/drivers/clk/sifive/fu740-prci.c
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2022-03-15clk: sifive: Move all stuff into SoCs header files from C filesZong Li
Improve PRCI driver to reduce the complexity, we remove the SoCs C files by putting all stuff in each SoCs header files, and include these SoCs-specific header files in core of PRCI. It can also avoid the W=1 kernel build warnings about variable defined but not used [-Wunused-const-variable=], like commit 487dc7bb6a0c ("clk: sifive: fu540-prci: Declare static const variable 'prci_clk_fu540' where it's used") does. Signed-off-by: Zong Li <zong.li@sifive.com> Suggested-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Lee Jones <lee.jones@linaro.org> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Link: https://lore.kernel.org/r/a3c7ec5c46c1d8be455d1c347db4855bb56cec53.1646388139.git.zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-03-15clk: sifive: Add SoCs prefix in each SoCs-dependent dataZong Li
This patch is prerequisite for moving SoCs C files into SoCs header files. Currently, fu540-prci.c and fu740-prci.c use same names for several macro definitions and variables, it would cause redefinition error when we trying to include all stuff in sifive-prci.c. In this patch, we also remove the temporary macro definitions which are added by previous patch. Signed-off-by: Zong Li <zong.li@sifive.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Link: https://lore.kernel.org/r/7728ef662c59449ce954b1b62c6ad5241e07adfb.1646388139.git.zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-03-15clk: sifive: duplicate the macro definitions for the time beingZong Li
This is a temporary patch in whole patch set. We are going to change the macro name in dt-binding, in order to avoid breaking the driver build and git bisect, add these macro definitions for the time being, and we will remove them later. Signed-off-by: Zong Li <zong.li@sifive.com> Link: https://lore.kernel.org/r/8cfd57f01cfb59adb716eb13ca0c8250c246dcb2.1646388139.git.zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-05-04clk: sifive: Add pcie_aux clock in prci driver for PCIe driverGreentime Hu
We add pcie_aux clock in this patch so that pcie driver can use clk_prepare_enable() and clk_disable_unprepare() to enable and disable pcie_aux clock. Link: https://lore.kernel.org/r/20210504105940.100004-2-greentime.hu@sifive.com Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Stephen Boyd <sboyd@kernel.org>
2020-12-16clk: sifive: Add clock enable and disable opsPragnesh Patel
Add new functions "sifive_prci_clock_enable(), sifive_prci_clock_disable() and sifive_clk_is_enabled()" to enable or disable the PRCI clock Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com> Tested-by: Zong Li <zong.li@sifive.com> Link: https://lore.kernel.org/r/20201209094916.17383-6-zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-12-16clk: sifive: Add a driver for the SiFive FU740 PRCI IP blockZong Li
Add driver code for the SiFive FU740 PRCI IP block. This IP block handles reset and clock control for the SiFive FU740 device and implements SoC-level clock tree controls and dividers. The link of unmatched as follow, and the U740-C000 manual would be present in the same page as soon. https://www.sifive.com/boards/hifive-unmatched This driver contains bug fixes and contributions from Henry Styles <hes@sifive.com> Erik Danie <erik.danie@sifive.com> Pragnesh Patel <pragnesh.patel@sifive.com> Signed-off-by: Zong Li <zong.li@sifive.com> Reviewed-by: Pragnesh Patel <Pragnesh.patel@sifive.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Henry Styles <hes@sifive.com> Cc: Erik Danie <erik.danie@sifive.com> Cc: Pragnesh Patel <pragnesh.patel@sifive.com> Link: https://lore.kernel.org/r/20201209094916.17383-4-zong.li@sifive.com [sboyd@kernel.org: Include header to silence sparse] Signed-off-by: Stephen Boyd <sboyd@kernel.org>