Messages in this thread | | | From | Peng Fan <> | Subject | RE: [RFC 0/4] clk: imx: Register the dram_apb and dram_alt as read-only | Date | Tue, 17 Nov 2020 02:47:53 +0000 |
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> Subject: [RFC 0/4] clk: imx: Register the dram_apb and dram_alt as read-only
Any follow up about this patchset?
Regards, Peng.
> > On i.MX8M platforms the dram_apb and dram_alt are controlled from EL3. > So in order to keep track of the actual clock tree in kernel, we need to > actually declare the clocks but never write to any of their registes. > We do that by registering the clocks with only the ops that read but never > write the registers. > > Abel Vesa (4): > clk: Add CLK_GET_PARENT_NOCACHE flag > clk: Add clk_gate_ro_ops for read-only gate clocks > clk: imx: composite-8m: Add DRAM clock registration variant > clk: imx8m: Use dram variant registration for dram clocks > > drivers/clk/clk-gate.c | 5 +++++ > drivers/clk/clk.c | 31 +++++++++++++++++-------------- > drivers/clk/imx/clk-composite-8m.c | 12 +++++++++++- > drivers/clk/imx/clk-imx8mm.c | 4 ++-- > drivers/clk/imx/clk-imx8mn.c | 4 ++-- > drivers/clk/imx/clk-imx8mp.c | 4 ++-- > drivers/clk/imx/clk-imx8mq.c | 4 ++-- > drivers/clk/imx/clk.h | 7 +++++++ > include/linux/clk-provider.h | 2 ++ > 9 files changed, 50 insertions(+), 23 deletions(-) > > -- > 2.7.4
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