| Message ID | 1596072174-16358-1-git-send-email-Anson.Huang@nxp.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Support building i.MX ARMv8 platforms clock driver as module | expand |
On Thu, Jul 30, 2020 at 09:22:48AM +0800, Anson Huang wrote: > Nowdays, there are more and more requirements of building SoC specific drivers as > modules, such as Android GKI (generic kernel image), this patch set supports building > i.MX ARMv8 SoCs clock drivers as modules, > > The CLK_IMXxxx is introduced for i.MX ARMv7 platforms in order to make the build options > aligned, the reason why i.MX ARMv7 platforms clock driver do NOT support module build > and COMPILE_TEST is because, some drivers like i.MX GPT timer driver depends on clock > driver to be ready before it, GPT driver uses TIMER_OF_DECLARE(), while i.MX6/7 clock > drivers use CLK_OF_DECLARE(), and GPT driver is critical for i.MX6/7 platforms kernel > boot up, so GPT driver needs to be changed to support loadable clock driver first, > then the i.MX6/7 clock drivers can support loadable module, this will be done later. > > Changes since V8: > - explicitly include linux/bits.h in patch #1. > > Anson Huang (6): > clk: imx6sl: Use BIT(x) to avoid shifting signed 32-bit value by 31 > bits > clk: composite: Export clk_hw_register_composite() > clk: imx: Support building i.MX common clock driver as module > clk: imx: Add clock configuration for ARMv7 platforms > clk: imx8m: Support module build > clk: imx8qxp: Support building i.MX8QXP clock driver as module Applied all, thanks.
Nowdays, there are more and more requirements of building SoC specific drivers as modules, such as Android GKI (generic kernel image), this patch set supports building i.MX ARMv8 SoCs clock drivers as modules, The CLK_IMXxxx is introduced for i.MX ARMv7 platforms in order to make the build options aligned, the reason why i.MX ARMv7 platforms clock driver do NOT support module build and COMPILE_TEST is because, some drivers like i.MX GPT timer driver depends on clock driver to be ready before it, GPT driver uses TIMER_OF_DECLARE(), while i.MX6/7 clock drivers use CLK_OF_DECLARE(), and GPT driver is critical for i.MX6/7 platforms kernel boot up, so GPT driver needs to be changed to support loadable clock driver first, then the i.MX6/7 clock drivers can support loadable module, this will be done later. Changes since V8: - explicitly include linux/bits.h in patch #1. Anson Huang (6): clk: imx6sl: Use BIT(x) to avoid shifting signed 32-bit value by 31 bits clk: composite: Export clk_hw_register_composite() clk: imx: Support building i.MX common clock driver as module clk: imx: Add clock configuration for ARMv7 platforms clk: imx8m: Support module build clk: imx8qxp: Support building i.MX8QXP clock driver as module drivers/clk/clk-composite.c | 1 + drivers/clk/imx/Kconfig | 94 ++++++++++++++++++++++++++++++++------ drivers/clk/imx/Makefile | 79 ++++++++++++++++---------------- drivers/clk/imx/clk-composite-8m.c | 2 + drivers/clk/imx/clk-cpu.c | 2 + drivers/clk/imx/clk-frac-pll.c | 2 + drivers/clk/imx/clk-gate2.c | 2 + drivers/clk/imx/clk-imx6sl.c | 15 +++--- 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-imx8qxp-lpcg.c | 4 ++ drivers/clk/imx/clk-imx8qxp.c | 4 ++ drivers/clk/imx/clk-pll14xx.c | 5 ++ drivers/clk/imx/clk-sscg-pll.c | 2 + drivers/clk/imx/clk.c | 17 +++++-- drivers/clk/imx/clk.h | 6 +++ 18 files changed, 186 insertions(+), 65 deletions(-)