clk: rockchip: handle critical clocks after registrering all clocks
diff mbox

Message ID 7786473.0oe27txQFN@phil
State New
Headers show

Commit Message

Heiko Stuebner Aug. 21, 2015, 5:51 p.m. UTC
Currently the registration of critical clocks is done in the function
shared between rk3066 and rk3188 clock trees. That results in them
getting handled maybe before all of them are registered.

Therefore move the critical clock handling down to the end of the soc-
specific clock registration function, so that all clocks are registered
before they're maybe handled as critical clock.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
It looks like with the recent flexibilization of the gpio clocks in the
pinctrl driver, we're shaking out some oddities from the clock trees.
This is another one that surfaced.

 drivers/clk/rockchip/clk-rk3188.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

 				  ROCKCHIP_SOFTRST_HIWORD_MASK);
@@ -765,6 +763,8 @@ static void __init rk3066a_clk_init(struct device_node 
*np)
 			mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
 			&rk3066_cpuclk_data, rk3066_cpuclk_rates,
 			ARRAY_SIZE(rk3066_cpuclk_rates));
+	rockchip_clk_protect_critical(rk3188_critical_clocks,
+				      ARRAY_SIZE(rk3188_critical_clocks));
 }
 CLK_OF_DECLARE(rk3066a_cru, "rockchip,rk3066a-cru", rk3066a_clk_init);
 
@@ -801,6 +801,9 @@ static void __init rk3188a_clk_init(struct device_node 
*np)
 		pr_warn("%s: missing clocks to reparent aclk_cpu_pre to gpll\n",
 			__func__);
 	}
+
+	rockchip_clk_protect_critical(rk3188_critical_clocks,
+				      ARRAY_SIZE(rk3188_critical_clocks));
 }
 CLK_OF_DECLARE(rk3188a_cru, "rockchip,rk3188a-cru", rk3188a_clk_init);

Comments

Michael Niewöhner Aug. 22, 2015, 3:04 p.m. UTC | #1
Am 21.08.2015 um 19:51 schrieb Heiko Stuebner <heiko@sntech.de>:

> Currently the registration of critical clocks is done in the function
> shared between rk3066 and rk3188 clock trees. That results in them
> getting handled maybe before all of them are registered.
> 
> Therefore move the critical clock handling down to the end of the soc-
> specific clock registration function, so that all clocks are registered
> before they're maybe handled as critical clock.
> 
> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Michael Niewoehner <linux@mniewoehner.de>
> ---
> It looks like with the recent flexibilization of the gpio clocks in the
> pinctrl driver, we're shaking out some oddities from the clock trees.
> This is another one that surfaced.
> 
> drivers/clk/rockchip/clk-rk3188.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-
> rk3188.c
> index faa6695..bd88542 100644
> --- a/drivers/clk/rockchip/clk-rk3188.c
> +++ b/drivers/clk/rockchip/clk-rk3188.c
> @@ -744,8 +744,6 @@ static void __init rk3188_common_clk_init(struct 
> device_node *np)
> 
> 	rockchip_clk_register_branches(common_clk_branches,
> 				  ARRAY_SIZE(common_clk_branches));
> -	rockchip_clk_protect_critical(rk3188_critical_clocks,
> -				      ARRAY_SIZE(rk3188_critical_clocks));
> 
> 	rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),
> 				  ROCKCHIP_SOFTRST_HIWORD_MASK);
> @@ -765,6 +763,8 @@ static void __init rk3066a_clk_init(struct device_node 
> *np)
> 			mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
> 			&rk3066_cpuclk_data, rk3066_cpuclk_rates,
> 			ARRAY_SIZE(rk3066_cpuclk_rates));
> +	rockchip_clk_protect_critical(rk3188_critical_clocks,
> +				      ARRAY_SIZE(rk3188_critical_clocks));
> }
> CLK_OF_DECLARE(rk3066a_cru, "rockchip,rk3066a-cru", rk3066a_clk_init);
> 
> @@ -801,6 +801,9 @@ static void __init rk3188a_clk_init(struct device_node 
> *np)
> 		pr_warn("%s: missing clocks to reparent aclk_cpu_pre to gpll\n",
> 			__func__);
> 	}
> +
> +	rockchip_clk_protect_critical(rk3188_critical_clocks,
> +				      ARRAY_SIZE(rk3188_critical_clocks));
> }
> CLK_OF_DECLARE(rk3188a_cru, "rockchip,rk3188a-cru", rk3188a_clk_init);
> 
> -- 
> 2.1.4
> 
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Stephen Boyd Sept. 10, 2015, 8:56 p.m. UTC | #2
On 08/21, Heiko Stuebner wrote:
> Currently the registration of critical clocks is done in the function
> shared between rk3066 and rk3188 clock trees. That results in them
> getting handled maybe before all of them are registered.
> 
> Therefore move the critical clock handling down to the end of the soc-
> specific clock registration function, so that all clocks are registered
> before they're maybe handled as critical clock.
> 
> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
> ---

Applied to clk-fixes

Patch
diff mbox

diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-
rk3188.c
index faa6695..bd88542 100644
--- a/drivers/clk/rockchip/clk-rk3188.c
+++ b/drivers/clk/rockchip/clk-rk3188.c
@@ -744,8 +744,6 @@  static void __init rk3188_common_clk_init(struct 
device_node *np)
 
 	rockchip_clk_register_branches(common_clk_branches,
 				  ARRAY_SIZE(common_clk_branches));
-	rockchip_clk_protect_critical(rk3188_critical_clocks,
-				      ARRAY_SIZE(rk3188_critical_clocks));
 
 	rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),