[RFC] clk: imx: Allow re-parenting by default on set rate

From: Abel Vesa <abel.vesa@nxp.com>
To: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Sascha Hauer <kernel@pengutronix.de>,
	Lucas Stach <l.stach@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>,
	dl-linux-imx <linux-imx@nxp.com>,
	Aisheng Dong <aisheng.dong@nxp.com>, Jacky Bai <ping.bai@nxp.com>,
	Anson Huang <anson.huang@nxp.com>,
	"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Abel Vesa <abel.vesa@nxp.com>
Subject: [RFC] clk: imx: Allow re-parenting by default on set rate
Date: Thu, 7 Mar 2019 09:20:37 +0000	[thread overview]
Message-ID: <1551950425-7346-1-git-send-email-abel.vesa@nxp.com> (raw)

By default, the muxes should re-parent on set_rate.
This would allow the drivers to control only the leaf clock node,
leaving the rest to the clock driver, that way simplifying the
clock control.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
---
 drivers/clk/imx/clk.h | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 5748ec8..055b602 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -148,7 +148,7 @@ static inline struct clk *imx_clk_mux_ldb(const char *name, void __iomem *reg,
 			int num_parents)
 {
 	return clk_register_mux(NULL, name, parents, num_parents,
-			CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT, reg,
+			CLK_SET_RATE_PARENT, reg,
 			shift, width, CLK_MUX_READ_ONLY, &imx_ccm_lock);
 }
 
@@ -321,7 +321,7 @@ static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg,
 			int num_parents)
 {
 	return clk_register_mux(NULL, name, parents, num_parents,
-			CLK_SET_RATE_NO_REPARENT, reg, shift,
+			0, reg, shift,
 			width, 0, &imx_ccm_lock);
 }
 
@@ -330,7 +330,7 @@ static inline struct clk *imx_clk_mux2(const char *name, void __iomem *reg,
 			int num_parents)
 {
 	return clk_register_mux(NULL, name, parents, num_parents,
-			CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE,
+			CLK_OPS_PARENT_ENABLE,
 			reg, shift, width, 0, &imx_ccm_lock);
 }
 
@@ -340,7 +340,6 @@ static inline struct clk_hw *imx_clk_hw_mux2(const char *name, void __iomem *reg
 					     int num_parents)
 {
 	return clk_hw_register_mux(NULL, name, parents, num_parents,
-				   CLK_SET_RATE_NO_REPARENT |
 				   CLK_OPS_PARENT_ENABLE,
 				   reg, shift, width, 0, &imx_ccm_lock);
 }
@@ -351,7 +350,7 @@ static inline struct clk *imx_clk_mux_flags(const char *name,
 			unsigned long flags)
 {
 	return clk_register_mux(NULL, name, parents, num_parents,
-			flags | CLK_SET_RATE_NO_REPARENT, reg, shift, width, 0,
+			flags, reg, shift, width, 0,
 			&imx_ccm_lock);
 }
 
@@ -361,7 +360,7 @@ static inline struct clk *imx_clk_mux2_flags(const char *name,
 		int num_parents, unsigned long flags)
 {
 	return clk_register_mux(NULL, name, parents, num_parents,
-			flags | CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE,
+			flags | CLK_OPS_PARENT_ENABLE,
 			reg, shift, width, 0, &imx_ccm_lock);
 }
 
@@ -373,7 +372,7 @@ static inline struct clk_hw *imx_clk_hw_mux_flags(const char *name,
 						  unsigned long flags)
 {
 	return clk_hw_register_mux(NULL, name, parents, num_parents,
-				   flags | CLK_SET_RATE_NO_REPARENT,
+				   flags,
 				   reg, shift, width, 0, &imx_ccm_lock);
 }
 
@@ -389,7 +388,7 @@ struct clk *imx8m_clk_composite_flags(const char *name,
 #define __imx8m_clk_composite(name, parent_names, reg, flags) \
 	imx8m_clk_composite_flags(name, parent_names, \
 		ARRAY_SIZE(parent_names), reg, \
-		flags | CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE)
+		flags | CLK_OPS_PARENT_ENABLE)
 
 #define imx8m_clk_composite(name, parent_names, reg) \
 	__imx8m_clk_composite(name, parent_names, reg, 0)
-- 
2.7.4

