From mboxrd@z Thu Jan 1 00:00:00 1970 From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth) Date: Wed, 12 Feb 2014 16:59:32 +0100 Subject: [PATCH v3 09/13] pinctrl: mvebu: armada-xp: 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: <1392220776-30851-10-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 --- 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-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