[PATCH v3 09/13] pinctrl: mvebu: armada-xp: provide generic mpp callbacks
Sebastian Hesselbarth
sebastian.hesselbarth at gmail.com
Wed Feb 12 10:59:32 EST 2014
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 at gmail.com>
---
Cc: Linus Walleij <linus.walleij at linaro.org>
Cc: Jason Cooper <jason at lakedaemon.net>
Cc: Andrew Lunn <andrew at lunn.ch>
Cc: Gregory Clement <gregory.clement at free-electrons.com>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Cc: Ezequiel Garcia <ezequiel.garcia at free-electrons.com>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
---
drivers/pinctrl/mvebu/pinctrl-armada-xp.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
index 843a51f9d129..b5381b421284 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
@@ -33,6 +33,30 @@
#include "pinctrl-mvebu.h"
+static void __iomem *mpp_base;
+
+static int armada_xp_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 armada_xp_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;
+}
+
enum armada_xp_variant {
V_MV78230 = BIT(0),
V_MV78260 = BIT(1),
--
1.8.5.3
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