Thread (12 messages) 12 messages, 2 authors, 2018-02-24

[PATCH v3 2/4] driver: clk: imx: add new gate/gate2 wrapper funtion

From: ping.bai@nxp.com (Jacky Bai)
Date: 2018-02-24 06:05:45
Also in: linux-clk

Subject: Re: [PATCH v3 2/4] driver: clk: imx: add new gate/gate2 wrapper
funtion

+ Lucas

On Wed, Feb 07, 2018 at 10:00:17AM +0800, Bai Ping wrote:
quoted
Add new gate/gate2 wrapper function to register clocks with optional flags.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
---
 drivers/clk/imx/clk.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h index
d69c4bb..8076ec0 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -123,6 +123,13 @@ static inline struct clk *imx_clk_gate(const char
*name, const char *parent,
quoted
 			shift, 0, &imx_ccm_lock);
 }

+static inline struct clk *imx_clk_gate_flags(const char *name, const char
*parent,
quoted
+		void __iomem *reg, u8 shift, unsigned long flags) {
+	return clk_register_gate(NULL, name, parent, flags |
CLK_SET_RATE_PARENT, reg,
quoted
+			shift, 0, &imx_ccm_lock);
+}
+
 static inline struct clk *imx_clk_gate_dis(const char *name, const char
*parent,
quoted
 		void __iomem *reg, u8 shift)
 {
@@ -137,6 +144,13 @@ static inline struct clk *imx_clk_gate2(const char
*name, const char *parent,
quoted
 			shift, 0x3, 0, &imx_ccm_lock, NULL);  }

+static inline struct clk *imx_clk_gate2_flags(const char *name, const char
*parent,
quoted
+		void __iomem *reg, u8 shift, unsigned long flags) {
+	return clk_register_gate2(NULL, name, parent, flags |
CLK_SET_RATE_PARENT, reg,
quoted
+			shift, 0x3, 0, &imx_ccm_lock, NULL); }
+
Lucas' patch 'clk: imx: add clock driver for i.MX8MQ CCM' [1] adds an
imx_clk_gate2_flags() as well, but with different implementation.  Can you
guys talk to each other to sort it out?
For gate type clks, CLK_SET_RATE_PARENT flag should be a necessary flag, I think it is better to add this flag by default
for imx_clk_gate2_flags implementation. Lucas, agree?

BR
Jacky bai
Shawn

[1]
https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatch
work.kernel.org%2Fpatch%2F10195759%2F&data=02%7C01%7Cping.bai%40nx
p.com%7C95acb8b895a1428e00ab08d57b347bb7%7C686ea1d3bc2b4c6fa92cd
99c5c301635%7C0%7C0%7C636550387753283006&sdata=oLeHGXgDfDa88UV
oRt4p35AaxTo8KTVjh0L32ONk1yI%3D&reserved=0
quoted
 static inline struct clk *imx_clk_gate2_shared(const char *name,
 		const char *parent, void __iomem *reg, u8 shift,
 		unsigned int *share_count)
--
1.9.1


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