diff mbox series

[3/7] clk: stm32mp1: set ck_csi as critical clock

Message ID 20190212135154.2733-4-gabriel.fernandez@st.com (mailing list archive)
State New, archived
Headers show
Series update STM32MP1 clocks | expand

Commit Message

Gabriel FERNANDEZ Feb. 12, 2019, 1:51 p.m. UTC
From: Gabriel Fernandez <gabriel.fernandez@st.com>

ck_csi is used for IO compensation so it should be
considered as "always-on" and kept on.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
---
 drivers/clk/clk-stm32mp1.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Stephen Boyd Feb. 13, 2019, 5:48 p.m. UTC | #1
Quoting gabriel.fernandez@st.com (2019-02-12 05:51:50)
> From: Gabriel Fernandez <gabriel.fernandez@st.com>
> 
> ck_csi is used for IO compensation so it should be
> considered as "always-on" and kept on.
> 
> Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
> ---
>  drivers/clk/clk-stm32mp1.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c
> index e72079de83f4..5b30e4eeca2c 100644
> --- a/drivers/clk/clk-stm32mp1.c
> +++ b/drivers/clk/clk-stm32mp1.c
> @@ -1661,7 +1661,8 @@ static const struct clock_config stm32mp1_clock_cfg[] = {
>  
>         /*  External / Internal Oscillators */
>         GATE_MP1(CK_HSE, "ck_hse", "clk-hse", 0, RCC_OCENSETR, 8, 0),
> -       GATE_MP1(CK_CSI, "ck_csi", "clk-csi", 0, RCC_OCENSETR, 4, 0),
> +       GATE_MP1(CK_CSI, "ck_csi", "clk-csi", CLK_IS_CRITICAL,

Please add a comment to the code indicating this so we know why critical
is here without reading git history.
diff mbox series

Patch

diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c
index e72079de83f4..5b30e4eeca2c 100644
--- a/drivers/clk/clk-stm32mp1.c
+++ b/drivers/clk/clk-stm32mp1.c
@@ -1661,7 +1661,8 @@  static const struct clock_config stm32mp1_clock_cfg[] = {
 
 	/*  External / Internal Oscillators */
 	GATE_MP1(CK_HSE, "ck_hse", "clk-hse", 0, RCC_OCENSETR, 8, 0),
-	GATE_MP1(CK_CSI, "ck_csi", "clk-csi", 0, RCC_OCENSETR, 4, 0),
+	GATE_MP1(CK_CSI, "ck_csi", "clk-csi", CLK_IS_CRITICAL,
+		 RCC_OCENSETR, 4, 0),
 	GATE_MP1(CK_HSI, "ck_hsi", "clk-hsi-div", 0, RCC_OCENSETR, 0, 0),
 	GATE(CK_LSI, "ck_lsi", "clk-lsi", 0, RCC_RDLSICR, 0, 0),
 	GATE(CK_LSE, "ck_lse", "clk-lse", 0, RCC_BDCR, 0, 0),