[PATCH v7 09/10] clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after system enter shell

[Stephen Boyd]

Quoting Dillon Min (2021-10-26 00:11:21)
> stm32's clk driver register two ltdc gate clk to clk core by
> clk_hw_register_gate() and clk_hw_register_composite()
> 
> first: 'stm32f429_gates[]', clk name is 'ltdc', which no user to use.
> second: 'stm32f429_aux_clk[]', clk name is 'lcd-tft', used by ltdc driver
> 
> both of them point to the same offset of stm32's RCC register. after
> kernel enter console, clk core turn off ltdc's clk as 'stm32f429_gates[]'
> is no one to use. but, actually 'stm32f429_aux_clk[]' is in use.
> 
> stm32f469/746/769 have the same issue, fix it.
> 
> Fixes: daf2d117cbca ("clk: stm32f4: Add lcd-tft clock")
> Link: https://lore.kernel.org/linux-arm-kernel/1590564453-24499-7-git-send-email-dillon.minfei@gmail.com/
> Link: https://lore.kernel.org/lkml/CAPTRvHkf0cK_4ZidM17rPo99gWDmxgqFt4CDUjqFFwkOeQeFDg@mail.gmail.com/
> Signed-off-by: Dillon Min <dillon.minfei at gmail.com>
> Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>
> Acked-by: Gabriel Fernandez <gabriel.fernandez at foss.st.com>
> Acked-by: Stephen Boyd <sboyd at kernel.org>
> ---

Applied to clk-next