[PATCH v3 07/13] pinctrl: mvebu: kirkwood: provide generic mpp callbacks
From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth)
Date: 2014-02-12 16:02:44
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Subsystem:
arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support, pin control subsystem, the rest · Maintainers:
Andrew Lunn, Gregory Clement, Sebastian Hesselbarth, Linus Walleij, Linus Torvalds
We want to get rid of passing register addresses to common pinctrl driver, so provide set/get callbacks for generic mpp pins that will be used later. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> --- Cc: Linus Walleij <redacted> Cc: Jason Cooper <redacted> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <redacted> Cc: Thomas Petazzoni <redacted> Cc: Ezequiel Garcia <redacted> Cc: linux-arm-kernel at lists.infradead.org Cc: linux-kernel at vger.kernel.org --- drivers/pinctrl/mvebu/pinctrl-kirkwood.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
index 6b504b5935a5..be8b2c9e2585 100644
--- a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
+++ b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c@@ -21,6 +21,30 @@ #include "pinctrl-mvebu.h" +static void __iomem *mpp_base; + +static int kirkwood_mpp_ctrl_get(unsigned 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(mpp_base + off) >> shift) & MVEBU_MPP_MASK; + + return 0; +} + +static int kirkwood_mpp_ctrl_set(unsigned 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(mpp_base + off) & ~(MVEBU_MPP_MASK << shift); + writel(reg | (config << shift), mpp_base + off); + + return 0; +} + #define V(f6180, f6190, f6192, f6281, f6282, dx4122) \ ((f6180 << 0) | (f6190 << 1) | (f6192 << 2) | \ (f6281 << 3) | (f6282 << 4) | (dx4122 << 5))
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