On 05/15/2018 11:48 PM, Stephen Boyd wrote:
Quoting Alexandre Torgue (2018-05-14 05:45:57)

On 05/05/2018 04:45 AM, Stephen Boyd wrote:
Quoting Alexandre Torgue (2018-05-04 00:54:16)

On 05/03/2018 08:40 AM, gabriel.fernan...@st.com wrote:
From: Gabriel Fernandez <gabriel.fernan...@st.com>

Clock driver is mandatory if the machine is selected.
Then don't use 'bool' and 'depends on' commands, but 'def_bool'
with the machine(s).

Fixes: da32d3539fca ("clk: stm32: add configuration flags for each of the stm32 

Sorry to insist but we need it to have STM32 MCUs booting on Kernel v4.17.

Thanks for the bump. I missed this one. Of course, the user can still select
the configs now, just it's annoying for upgrade path.

Signed-off-by: Gabriel Fernandez <gabriel.fernan...@st.com>
Acked-by: Alexandre TORGUE <alexandre.tor...@st.com>
    drivers/clk/Kconfig | 6 ++----
    1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 24a5bc3..721572a 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -266,15 +266,13 @@ config COMMON_CLK_STM32MP157
          Support for stm32mp157 SoC family clocks
-     bool "Clock driver for stm32f4 and stm32f7 SoC families"
-     depends on MACH_STM32F429 || MACH_STM32F469 || MACH_STM32F746
+     def_bool COMMON_CLK && (MACH_STM32F429 || MACH_STM32F469 || 

But the point of the change this patch is fixing was to expose these to
the user to turn off they wanted. You'll need to do something like that
again here, instead of removing the prompt and replacing it with a

Sorry I don't understand. Clock driver is mandatory to boot each
platform and depends on machine type. Do you see a use case where we
could need to disable the clock driver? (it would impose to change
devicetree to use fixed clocks and to have a booloader which configures
all PLL and clocks).

No. My understanding of the patch that introduced the options was to
allow the user to disable these drivers if they wanted to. I'm just
reiterating the spirit of that patch. That must be wrong?

Actually initial patch is a mistake. You can't boot STM32 platform without clock driver. This patch fixes that, and offers the possibility to not build the clock driver of the machine which are not used (currently all machine are selected but to reduce memory footprint you could disable not used machine in defconfig).

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