Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-05 03:21:32 +00:00
Code Issues Packages Projects Releases Wiki Activity

pinctrl: mvebu: dove: provide generic mpp callbacks

Browse Source 
We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later. While at it, also make use of globally defined
MPP macros.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This commit is contained in:
Sebastian Hesselbarth 2014-01-31 01:31:21 +01:00
parent f5b85e42d4
commit 17bdec6770
1 changed files with 22 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/pinctrl/mvebu/pinctrl-dove.c
View File

@ -49,48 +49,56 @@
#define DOVE_SD1_GPIO_SEL BIT(1)
#define DOVE_SD0_GPIO_SEL BIT(0)
#define MPPS_PER_REG 8
#define MPP_BITS 4
#define MPP_MASK 0xf
#define CONFIG_PMU BIT(4)
static void __iomem *mpp_base;
static int dove_mpp_ctrl_get(unsigned pid, unsigned long *config)
{
return default_mpp_ctrl_get(mpp_base, pid, config);
}
static int dove_mpp_ctrl_set(unsigned pid, unsigned long config)
{
return default_mpp_ctrl_set(mpp_base, pid, config);
}
static int dove_pmu_mpp_ctrl_get(unsigned pid, unsigned long *config)
{
unsigned off = (pid / MPPS_PER_REG) * MPP_BITS;
unsigned shift = (pid % MPPS_PER_REG) * MPP_BITS;
unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
unsigned long func;
if (pmu & (1 << pid)) {
func = readl(DOVE_PMU_SIGNAL_SELECT_0 + off);
*config = (func >> shift) & MPP_MASK;
*config = (func >> shift) & MVEBU_MPP_MASK;
*config |= CONFIG_PMU;
} else {
func = readl(DOVE_MPP_VIRT_BASE + off);
*config = (func >> shift) & MPP_MASK;
*config = (func >> shift) & MVEBU_MPP_MASK;
}
return 0;
}
static int dove_pmu_mpp_ctrl_set(unsigned pid, unsigned long config)
{
unsigned off = (pid / MPPS_PER_REG) * MPP_BITS;
unsigned shift = (pid % MPPS_PER_REG) * MPP_BITS;
unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
unsigned long func;
if (config & CONFIG_PMU) {
writel(pmu | (1 << pid), DOVE_PMU_MPP_GENERAL_CTRL);
func = readl(DOVE_PMU_SIGNAL_SELECT_0 + off);
func &= ~(MPP_MASK << shift);
func |= (config & MPP_MASK) << shift;
func &= ~(MVEBU_MPP_MASK << shift);
func |= (config & MVEBU_MPP_MASK) << shift;
writel(func, DOVE_PMU_SIGNAL_SELECT_0 + off);
} else {
writel(pmu & ~(1 << pid), DOVE_PMU_MPP_GENERAL_CTRL);
func = readl(DOVE_MPP_VIRT_BASE + off);
func &= ~(MPP_MASK << shift);
func |= (config & MPP_MASK) << shift;
func &= ~(MVEBU_MPP_MASK << shift);
func |= (config & MVEBU_MPP_MASK) << shift;
writel(func, DOVE_MPP_VIRT_BASE + off);
}
return 0;