UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

pinctrl: mvebu: add common mpp reg helper to mvebu pinctrl include 

This adds some defines and helper functions for the common mpp reg
layout to mvebu pinctrl include.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
This commit is contained in:
Sebastian Hesselbarth 2014-01-27 22:25:15 +01:00
parent 2035d39da1
commit f5b85e42d4
1 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/pinctrl/mvebu/pinctrl-mvebu.h
View File

@ -186,6 +186,34 @@ struct mvebu_pinctrl_soc_info {
.npins = _npins, \
}
#define MVEBU_MPPS_PER_REG 8
#define MVEBU_MPP_BITS 4
#define MVEBU_MPP_MASK 0xf
static inline int default_mpp_ctrl_get(void __iomem *base, unsigned int pid,
unsigned long *config)
{
unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
*config = (readl(base + off) >> shift) & MVEBU_MPP_MASK;
return 0;
}
static inline int default_mpp_ctrl_set(void __iomem *base, unsigned int pid,
unsigned long config)
{
unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned long reg;
reg = readl(base + off) & ~(MVEBU_MPP_MASK << shift);
writel(reg | (config << shift), base + off);
return 0;
}
int mvebu_pinctrl_probe(struct platform_device *pdev);
int mvebu_pinctrl_remove(struct platform_device *pdev);