From mboxrd@z Thu Jan 1 00:00:00 1970 From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth) Date: Wed, 12 Feb 2014 16:59:30 +0100 Subject: [PATCH v3 07/13] pinctrl: mvebu: kirkwood: provide generic mpp callbacks In-Reply-To: <1392220776-30851-1-git-send-email-sebastian.hesselbarth@gmail.com> References: <1390869573-27624-1-git-send-email-sebastian.hesselbarth@gmail.com> <1392220776-30851-1-git-send-email-sebastian.hesselbarth@gmail.com> Message-ID: <1392220776-30851-8-git-send-email-sebastian.hesselbarth@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Tested-by: Andrew Lunn --- Cc: Linus Walleij Cc: Jason Cooper Cc: Andrew Lunn Cc: Gregory Clement Cc: Thomas Petazzoni Cc: Ezequiel Garcia 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)) -- 1.8.5.3