Re: [PATCH V2 5/6] pinctrl: sprd: Increase the range of register values

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On 10/25/2023 7:29 PM, xu lh wrote:
On Tue, Sep 12, 2023 at 4:37 PM Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
wrote:



On 9/8/2023 1:51 PM, Linhua Xu wrote:
From: Linhua Xu <Linhua.Xu@xxxxxxxxxx>

As the UNISOC pin controller version iterates, more registers are
required
to meet new functional requirements. Thus modify them.

Signed-off-by: Linhua Xu <Linhua.Xu@xxxxxxxxxx>
---
   drivers/pinctrl/sprd/pinctrl-sprd.h | 30 +++++++++++++++--------------
   1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/pinctrl/sprd/pinctrl-sprd.h
b/drivers/pinctrl/sprd/pinctrl-sprd.h
index a696f81ce663..5357874186fd 100644
--- a/drivers/pinctrl/sprd/pinctrl-sprd.h
+++ b/drivers/pinctrl/sprd/pinctrl-sprd.h
@@ -7,30 +7,32 @@
   #ifndef __PINCTRL_SPRD_H__
   #define __PINCTRL_SPRD_H__

+#include <linux/bits.h>
+
   struct platform_device;

-#define NUM_OFFSET   (20)
-#define TYPE_OFFSET  (16)
-#define BIT_OFFSET   (8)
-#define WIDTH_OFFSET (4)
+#define NUM_OFFSET   22
+#define TYPE_OFFSET  18
+#define BIT_OFFSET   10
+#define WIDTH_OFFSET 6

   #define SPRD_PIN_INFO(num, type, offset, width, reg)        \
-             (((num) & 0xFFF) << NUM_OFFSET |        \
-              ((type) & 0xF) << TYPE_OFFSET |        \
-              ((offset) & 0xFF) << BIT_OFFSET |      \
-              ((width) & 0xF) << WIDTH_OFFSET |      \
-              ((reg) & 0xF))
+             (((num) & GENMASK(10, 0)) << NUM_OFFSET |       \
+              ((type) & GENMASK(3, 0)) << TYPE_OFFSET |      \
+              ((offset) & GENMASK(7, 0)) << BIT_OFFSET |     \
+              ((width) & GENMASK(3, 0)) << WIDTH_OFFSET |    \
+              ((reg) & GENMASK(5, 0)))

Can you define some readable macro for the mask bits?


okay. Do you think the following modification is okay?
+#define PIN_ID         GENMASK(10, 0)
+#define PIN_TYPE       GENMASK(3, 0)
+#define FIELD_OFFSET   GENMASK(7, 0)
+#define FIELD_WIDTH    GENMASK(3, 0)
+#define PIN_REG                GENMASK(5, 0)

Looks better. To keep consistent, I perfer to something as below:
#define NUM_MASK xxx
#define TYPE_MASK xxx
#define BIT_MASK xxx
#define WIDTH_MASK xxx
#define REG_MASK xxx



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